PEDIATRCS MBBS.weebly.com
Pediatrics  is  a  medical  sciences  of  researching  on : ●   The  growth  and  development of children.  ●   The physical and psychological health ●   Prevention and treatment of diseases , from the fetal to adolescence
Age Group Distribution And The  Principles Of  Health  Care 1.  FETAL PERIOD 2.  NEONATAL PERIOD  (neonatal infant) 3.  INFANCY (infant period) 4.  TODDLER'S AGE  5.  PRESCHOOL AGE 6.  SCHOOL AGE 7.  ADOLESCENCE
1. FETAL PERIOD   Time-- From fertilized ovum to birth : about  294 days ( 40  wk from fertilization) ※   Early  period  of  gestation (1st trimester) : from fertilization to 12 th wk.   ●  organs of systems formed ●  heart beat by the end of 4 wk ●  fetus formed about 8-10 wk ●  sex distinguished ●  important period of fetal, deformation by many factors (infection, radiation, chemistry, genetics, etc)
※   Middle period of gestation (2nd trimester) : from  13th wk to 28th wk.  ● organs growth rapidly ●   function of organs maturate  gradually.  ●   by the end of  28th wk, weight ≈ 1000 g, alive birth.
※   Later period of gestation (3rd trimester) : From  29 th  wk to 40 th   wk ● increase in size of fetus involves  primarily  subcutaneous tissue and muscle mass. ● function of organs mature further
fetal  development  hindered:  still birth, abortion, premature  labor,  congenital malformation, etc.
Health  care  of  pregnant  and  fetus  is  very  important: Fetus live  dependent  to  mother.  maternal health,  nutrition,  emotion,  circumstance, diseases impact fetal development greatly.  Mother  invaded  by  harmful  factors  ( physical or chemical injury, malnutrition, infection, drugs  and  psycholgical  wound, immune reaction)
2. NEONATAL PERIOD Time --from the ligature of umbilical cord at birth  to  28  days. (<7 d ,  early  period  of neonate).  Character :  independent  to  mother,  circum-stance change greatly.
Health care :  emphasize  the  nursing  (warmth, feeding,  cleaning,  sterilization,  separation).
※ Prenatal  period --from the end of 28th wk of pregnancy to 7 days after  birth  (weight ≥1000g).  Include 3 period: later gestation, the course of delivery, early neonate.  ● Fetus  undergo  a  great  change.  ●  High  prenatal mortality (still birth, birth death and neonate death).  ●   prenatal mortality is the criterion of evaluating  the  quality  of  obstetrics  and pediatrics
3. INFANCY (infant period) Time-- from deletion of  UC  to 1 yr old Character :  ● The fastest period of growth and  development.  ● High demands of energy and nutrition  but immature digestive  function -> malnutrition, disturbance of digestion. ● Immature  immunity -> infective  and infectious diseases.
Health care :  ●   Advocate breast feeding  ●   reasonable nutrition and supplemental food. ●   planning inoculation vaccination ●   Training good habit of hygiene ●  prevent infection and wound
4. TODDLER'S AGE Time-- from  the  end  of l yr to 3 yr old Character:  ●   Slower speed of growth and development ●   Extended  range  of  activity,  increased contact with people and things ●   intelligence development faster: increased language,  thinking,  adaptive,  social ability. ●   Poor ability of recognizing danger ●   Easy to suffer from infection
Health care ● prevention of accident  wound  and  the  toxic ●   pay attention to feeding and nutrition to  prevent malnutrition ●  prevention of infectious and infective diseases
5. PRESCHOOL AGE Time--from the end of 3 rd yr. to enter school (6 ~ 7 yr old) Character :  ●   physical growth and development steady ●  intelligence development fast, understanding gradually  ●  curious and like mimic ●   express language, thinking and emotions by  language ●  changeable character
Health care: ● Train good morality and good habit of hygiene, learning and work. ●   pay attention to the hygiene of  eyes and mouth ●   Prevention of infection diseases, nephritis and rheumatic disease ●   Prevention of accidence and wound
6. SCHOOL AGE Time--from 6 ~ 7 yr old to 12 (girl) ~ 13(boys) yr old Character :  ●   except genital system, organs of systems are similar to the adult level. ●   morphology of brain is similar to adult ●   more mature  intelligent  development  ●   Important period of getting knowledge and receiving education. ● Education for the development of  the good morality, intelligence, physics, beauty and labor.
Health care :  ●   Train correct posture of sitting, standing  and walking, reason schedule of live, study and exercise. ●   prevention of near sight and dental caries.  ●   pay attention to the  change  of  emotion  and behavior, to avoid nervousness.
7. ADOLESCENCE Time--girls from 11 ~ 12 yr old to 17 ~ 18yr  old  boys from 13 ~ 14 yr old to 18 ~ 20 yr old Character :  ● Faster physical growth and development (2 nd   peak) ● Reproductive system develop fast, and mature gradually. ● Unstable psychology, behavior and mind, Great impact from social contact
Health care : ●   provide enough nutrition and rest, encourage do more exercise ●   Strengthen education and guidance to establish good morality ●   pay attention to education of physiology and hygiene ●   prevention of goiter and hypertension
THE BASIC AND CLINICAL FEATURES  OF  PEDIATRICS
  1.  The character of basic medicine ⑴ ANATOMY ※  Changing  continuously  with  age  in  appearance(weight,height, head  circumference, etc ) body proportions, bone development (fontanels, ossification  centers),  teeth,  the size and position of organs, and skin, muscles, nouves and lymphatic system. ※   familiar with the normal regularity, help to judge the normal or abnormal
⑵  PHYSIO-BIOCHEMISTRY ● The normal values change: HR, BP, RR,  haematology, component of body fluid ● Functions mature gradually ● Immature function, easy to suffer from diseases  ● high metabolism and immature renal function -> disturbance of water and electrolyte.
⑶ IMMUNITY ※ Immune function of skin, mucous, lymphatic  system, and cytokines mature with the age increase. physiologic low immunity of infancy ->easy suffer from infection.  ● Ig G from mother disappear 3 ~ 5 mo, active IgG reach adult level in 6 ~ 7 yr. old-> respiratory and digestive system infection ● Ig M cannot transit ->easy to sepsis of G -  in  neonates ● S Ig A deficiency in respiratory ● Lower cytokines factors (complement, migration factor, etc) and phagocyte  ability
⑷  PATHOLOGY response to  pathogenic factors is different :  ●   pneumonococcus ->bronchopneumonia  in infants,  lobar peumonia in adult ● Vit D deficiency -> ricket  (infants),  achondroplasia (adult)
2. CLINICAL FEATHUR ⑴  Disease Pattern ※ The kinds of diseases are quite different  from adult:  congenital,  hereditary,  infective  diseases more common. ●   Congenital  heart  diseases  (children)  atherosclerosis heat diseases  (adult). ● acute leukemia (children),  malignent tumor (adult). ●  hyperbillirubinemia of the newborn, febrile convulsion not in adult
⑵ CLINICAL MANIFESTATION ● Onset  acute  or  abrupt ● Clinical course: repeat (relapse), fluctuate, change fast. ● Lacking limitation ability->easy to complicate  septicemia, while the prime focal infection is not discovered  ● Severe infection in newborn or weak infants:  hypothermia, refuse to eat, dull  expression,  WBC↓.
⑶ DIAGNOSIS ● cannot complain and describe symptoms diagnosis  based  on the  history  ( from  parent),epidemic data, signs and lab data ● Clinical  manifestation  and  the  kinds  of diseases are special to every age period, pay attention to age when diagnosis,
same symptom - different diagnosis ●   Convulsion  in  neonates :  birth  trauma asphyxia,  intracranial  hemorrhage  and congenital abnormalities ●   <6 mo infants : vitamin D deficiency or CNS  infection ●   >3 yr old (no fever): epilepsy
⑷ TREAMENT ●   Doses of drug change with age or weight  ●   Some methods special in children ●  Fluid therapy is special ●  Poor immunity,  modulation  and  adaptive  capability->complications. pay attention to complication when treat origin disease ● Well nursing and support treatment are important
⑸ PROGNOSIS ●   Recovery fast by prompt and proper treatment ● Vigorous recovery ability of tissue and organs->less sequels ●   Exacerbation fast ->death
3. Character of prevention Prevention is very important in pediatrics ●  plan immunization is the most important one->eliminate or decrease infectious disease ● Monitoring the growth and development-> find problem and correct them ● Hereditary consult->prevent the development of some diseases  ● Neonatal screen prevent some diseases development. ● prevent some adult diseases from child
GROWTH AND DEVELOPMENT
THE REGULARITY OF GROWTH AND DEVELOPMENT Growth:   grow up of body and organs, quantitative increment Development:   functional maturity of cells, tissues and organs, qualitative changes. Both can't  be separated definitively.
  Some regularity of development   ⑴  Development is a continuous course  but the speed of development  varies  in different stage. there are two peaks : first & 2  nd   peak. ⑵   Unbalance development of different organs or systems: nerve  system  earlier,  genital  system  later,  lymph system fast in early period and then shrunk.
 
⑶  General regularity of development from up to down: lift head, chest, sit, stand, walk from proximal to distal:  arm->hand,  leg-> foot from gross  to  fine:  hold  object  by  palm-> finger from simple to complex: draw line->circle ->  picture of person from elementary to advanced : see, feel, recognize, remember, think, analyze, judge.
⑷   individual variation of development influence on sex, hereditary, environment, cultural factors. with age increase, difference obviously.
THE INFLUENCE FACTORS OF DEVELOPMENT   ⑴ Heredity(inheritance): The feature, potentiality, trends and limitation ⑵ Sex ⑶ Nutrition ⑷ Conditions of pregnant  mother: environment,  nutrition, emotion, diseases ⑸ Living environment: sun light, fresh air, clean water; living schedule, nursing, education, exercise. ⑹ Diseases: Acute or chronic diseases, endocrine diseases, congenital diseases.
Indicators of Physical  Growth     1.THE GROWTH BEFORE PUBERTY ⑴  BODY WEIGHT ● The sum of all tissues (bone, organs, muscle,  fat) and body fluid reflect the physical growth, esp.  nutrition.  The basis of calculating dose of drugs  and fluid infusion.
●   Body weight: at birth, 3 kg (2.5 ~ 4kg); decrease 3 ~ 9 %  1st wk;  fast increase 1 ~ 6 mo (1st peak); 1yr old 9 kg, 2yr old 12 kg; 2 ~ 12yr old 2  kg/yr;  fast  increase in  adolescence  (2nd peak)
● The formulas for  average  weight of  normal infants and children. 1 ~ 6  mo: Wt (kg) = Wt at birth + mo×0.7(kg) 7 ~ 12 mo: Wt (kg) = 6(kg) + mo×0.25(kg) 2 ~ 12 yr: Wt (kg) = Age×2(kg) + 7(8)(kg) 10 %  individual difference
 
 
 
⑵  INCREASE OF STATUS ①  body height(standing height) ● The length from the top of head to sole (foot- plate), an index of evaluating bone growth. ● Height 50 cm at birth; increment of 1st yr  25 cm(1st peak), (<6 mo 2.5 cm/mo, >6 m  1.5 cm/mo) , 75 cm at 1yr old; 85 cm at 2 yr old; after 2 yr old, 5 ~ 7cm / yr; fast in adolescence (2 nd   peak).
●   The formulas for  average height of normal  children (2 ~ 12 yr old) Height (cm) = Age (years)×7 + 70 cm ●  Height include 3 parts : head, spine, lower extremities. The  proportion  of head, trunk, lower extremities different with age.   In  1st  yr  head  increase  fastest,  spine secondary, In adolescence, lower  extremities increase mainly,
 
 
●   Upper segment : from head top to the upper border of pubic symphysis. ●   Lower segment : from the upper border of symphysis pubis to sole. ●   Midpoint: At birth: on umbilicus,  2yr old: below umbilicus,  6 yr old: on the midpoint between umbilicus  and pubic,  12 yr old : on the upper border of pubic  symphysis (upper segment = lower).
②  SITTING HEIGHT ● The  length  from head top to  ischial bone (head + spine) ● The regularity of sitting height increase≈ upper height,  Sitting height / body height decrease with age increased. ③  Span: distance of finger-tip represent the growth of the long bone of upper extremities
(3)HEAD CIRCUMFERENCE (HC) ●   The length surrounding a circle of head via upper border of eyebrow bow and  occipital node. ●   Related closely to brain development . ●  Head circumference: 34 cm at birth, 44 cm in 6 mo, 46 cm in 1 yr old, 48 cm in 2 yr old, 50 cm in 5 yr old. ●   HC=1/2Ht+10cm
 
(4)CHEST CIRCUMFERENCE (CC) ● The length of a circle of chest. (lower border of nipple). ● Related closely to the development of lung and bone, muscle, and fat of thorax. ● Chest circumference: 32 cm at birth, 46 cm by the end of 1 yr ( = head), after 1 yr old, > head circumference. (5) UPPER ARM CIRCUMFERENCE(UAC) <1yr 、 fast, 1~5yr. Slow(1 ~ 2cm) as a index of evaluating nutrition >13.5cm good, <12.5cm poor
Proportion of body and the symmetry ⑴  Proportion of  head  and stature Changes during the growth ⑵   Weight by stature ●   Weight-for-height W/H ●   Weight(kg)/height(cm) ×1000--Quetelet index  ●   Weight(kg)/height(cm)×10 4 --Kaup index
 
⑶   Trunk-leg ratio ●   Sitting height/standing height ●   represent the growth of lower extremities ●   at birth(0.67)->14 yr  (0.53) ●   Some diseases (hypothyrodism) affect the ratio ⑷  span and height ●   span < height(1 ~ 2cm) ●   if span> height (Marfan syndrome)
2. GROWTH ON  PUBERTY ●   2 nd  peak height velocity(PHV) ●  Sex difference (boy later 2yr, increase/yr> girl) ●   girl 8cm/yr.  boy 9cm/yr ●   weight increase parallel with the height
3. Assessment of growth ⑴  The express methods of the measure value 1) Express method of statistics and cut off point  ●   Dispersion method  x ± SD:  ±2SD, 95.4% ●   Percentage method: P 3 ~P 97  , 94% ●   Z score=(x – x  )  /SD ●   mean Value method: M≈x  、 P 50
2) The express of result  ●  Grade dividing  ●   growth chart
 
⑵  The contents of the growth evaluation. 1)   Development level ●   growth value vs conference ●   premature: correct fetal age to 40 wk. Ht 40mo, HC 18mo. wt 24mo catch up the  growth of mature neonates
2)  Growth velocity ●   continuously  measure  an  index during a  period 3)  proportion of body: ●   weight by stature weight for height, W/H  ●   trunk-leg ratio (sitting W/H)
What is the pediatrics ?  ●   The  growth  and  development of children.  ●   The physical and psychological health ●   Prevention and treatment of diseases , from the fetal to adolescence Remind of  1
Remind of  2 AGE PERIOD  1.  FETAL PERIOD 2.  NEONATAL PERIOD  3.  INFANCY  4.  TODDLER'S AGE  5.  PRESCHOOL AGE 6.  SCHOOL AGE 7.  ADOLESCENCE
Remind of 3   Some regularity of development   ⑴  Development is a continuous course  but the speed of development  varies  in different stage. there are two peaks : first & 2  nd   peak. ⑵   Unbalance development of different organs or systems: nerve  system  earlier,  genital  system  later,  lymph system fast in early period and then shrunk.
Remind of 3 ⑶  General regularity of development from up to down: lift head, chest, sit, stand, walk from proximal to distal:  arm->hand,  leg-> foot from gross  to  fine:  hold  object  by  palm-> finger from simple to complex: draw line->circle ->  picture of person from elementary to advanced : see, feel, recognize, remember, think, analyze, judge.
Remind of 3 ⑷   individual variation of development
Remind of 4 Indicators of Physical  Growth   ⑴  BODY WEIGHT (2) body height (standing height) (3)HEAD CIRCUMFERENCE (HC) (4)CHEST CIRCUMFERENCE (CC) (5) UPPER ARM CIRCUMFERENCE(UAC)
Remind of 4 Proportion of body and the symmetry ⑴  Proportion of  head  and stature ⑵   Weight by stature ⑶   Trunk-leg ratio ⑷  span and height
Remind of 5: the chart
DEVELOPMENT OF SYSTEMS
1.DEVELOPMENT OF BONES ⑴  Development of Cranial bone ●   Evaluation base on head circumference, fontanels, cranial sutures. ●   Anterior fontanel : a rhombic gap composed of the border of parietal and frontal bones.  Length 1.5 ~ 2 cm at birth, increase gradually, after 6 mo, decrease with ossification gradually, closed 12 ~ 18 mo.
●   Posterior  fontanel :  a  triangular  gap  composed  of  the  border  of  parietal  and occipital  bones.  very small or closed at birth, finally closed 6 ~ 8 wk. ●   Cranial sutures: still separated at birth, closed 3 ~ 4 mo.
 
Anterior fontanel :  closed early or too small--microcephalia; closed later or large--ricket or  cretinism;  full  (plump) --  cranial pressure↑ (hydrocephalus, encephalitis, cephalitis  meningitis, tumor of brain);  sunken (depression)--dehydration, severe emaciation (wasting).
(2).DEVELOPMENT OF SPINAL COLUMN   ● reflect to the development of spinal bones, faster during 1st yr. ●   3 mo when lift head, cervical vertebra forward protruding (1st bend) ; 6 mo when sitting, thoracic vertebra backward protruding (2nd bend) ;  after 1 yr when walking, lumbar vertebra forward protruding (3 rd bend) ● 3 bends help body balance. abnormal posture or  diseases-> spind deformity.
(3) DEVELOPMENT OF LONG BONES ●   Growth of long bones : ossification of  meta-physical cartilage and osteogenesis of sub- periosteum.  The fusion of diaphyseal epiphysis--the mark of the end of long bone growth. ●   Growth  of  flat  bones : ossification  of  periosteum.
●   Evaluation  of  bone  development  status: Ossification centers--bone age In neonates: ossification  center  of  heal,  ankle and femoral bone appeared.
Generally X-Ray of left hand is taken : neonates: no ossification center in wrist,  3 mo : capitate bone and hamate bone,  1 yr old : lower radial epiphysis. 2 ~ 2.5 yr old : pyamidal (triangulur) bone, 3 yr  old : lumar bone
3.5 ~ 5 yr old : large and small mulangular bone 5 ~ 6 yr old : scaphoid 6 ~ 7 yr old: lower ulnar epiphysis 9 ~ 10 yr old: postular bone In 10 yr old, all (10) ossification have been appeared.
from 1 ~ 9 yr old: the number  =  year(s)+1 ●   Significance: retarded bone age--deficiency  of growth hormones, hypothyroidism,  renal  tubular acidosis;  advanced bone age--- central precocious puberty, congenital adenalhyperplasia
 
2. DEVELOPMENT OF TEETH ●   Two sets  of teeth:  deciduous teeth (20),  permanent teeth (32) ●  Eruption of deciduous teeth:  appear at 4 ~ 10 mo, complete before 2.5 yr old ●   The order of deciduous teeth: ①lower central incisors, ② upper central  incisors,  ③ upper  lateral  incisors,  ④  lower  lateral  incisors, ⑤ lower  first  molars,  ⑥ upper first  molars,  ⑦ lower  cuspids,  ⑧ upper  cuspids, ⑨upper second  molars,  ⑩ lower  second molars.
 
● After 6 yr old : 1 st  permanent tooth (1st molar) erupt From 7 ~ 8 yr old on, deciduous  teeth shed as eruption order,  instead by  permanent teeth : the  1st  and  2nd  bicuspid  instead  of the 1st  and  2nd  molars,  2nd  molars  erupt in 12 yr  old,  3 rd molars  (wisdom teeth) erupt after 18 yr old ● Eruption of teeth; a physiologic phenomenon.  some  symptoms may  occur in  some  babies : low fever, ptyalism, salivation, restless sleep, irritation. ●   Retard eruption or bad  quality  of  teeth : malnutrition,  ricket,  hypothyroidism,  down's  syndrome.
3. Development of fat tissue and muscle ⑴   Development of fat tissue  ●   number increase and bulk enlargement of the fat cell ●   subcutaneous fat measurement ⑵   Develop of skeletal muscle ●   increase of the number and bulk of muscle  fiber  ●   closely related to the nutrition, live  style and physical exercise
3.  DEVELOPMENT OF GENITAL SYSTEM ●   regulate by hypothalamus-pituitary-gonad axis ●   pre-adolescence ( female 9~11yr , male 11~13 yr )  physical  growth  acceleration, sexual sign appear ●   mid-adolescence (14~16 yr old) 2  nd  peak of physical grow, all sexual sign appear ● later-adolescence (female 17~21yr, male 19~24yr finish of genital development  ●   Precocious puberty:girl<8yr, boy <10yr delayed puberty: girl >14yr, boy>16yr.
NEURODEVELOPMENT AND  SYCHODEVELOPMENT
1.  DEVELOPMENT OF SENSE PERCETION ⑴   Visual sense (vision) Neonate : has visual function and light  reflex of pupilla, tremor of eye ball some time 2nd mo: stares at object with primary coordination of head and eye, follows moving object  90 。 . 3~4 mo: has coordination of head and eye, follows moving object 180 。
⑵  Hearing (audition) sense poor at birth, good in 3~7 day. turns head to origin of sound (directional capability)  3 rd mo. 4yr old audition development complete ABR measure hearing capability. ⑶   Taste sense  sensitive at bith. ⑷  Smell (olfactory) sense has smell sense at birth, unpleasant expression to  strong  smells  by  the  end  of  1  mo,  can identify good  or bad  smell  3 ~ 4  mo,  more sensitive 7 ~ 8 mo,
⑸  Sense of skin (tactile, pain, warmth sense  and deep sense) at  birth,  tactile  and  warmth  sensitive in oral and perior area,  second in eye, palm, sole; pain sense retarded in neonate, improve in 2nd mo; warmth sense good at birth.
⑹   Reflex ●   inborn reflex at birth: rooting, sucking  swallowing, grasp, Moro  ●   conditioned reflex: 2 W: the 1st conditioned  reflex appear 2 m: conditioned reflex relate to vision, audition, taste, smell  3~4m: inhibitory conditioned reflex formation
2. MOTOR DEVELOPMENT The regular of motor development: from upper to lower, from the proximal to the distant, non-ordinate to coordinate,from front motion to reverse motion ( 1)   Gross motor ①  lift head :   neonate, 1~2 second; 3 mo, steady; 4 mo, turn head ②  roll over:  neonate, in born from lateral  position to supine position. 4~5mo, lateral to supine, 7~8 mo active  from  lateral  to  supine ③  sitting :   6 mo can sit, 8 mo steady
④  creeps :   3~4 mo, hand support, 8 mo, creeps forward; 12 mo, creeps with hand and knee ⑤  stand and walk :  neonate: stepping reflex   5~6 mo. Stand supported by arm 8 mo. Stand a moment 10 mo.  deliberate  stepping 15 mo. Walk independent (walk alone)
( 2) Fine activity Neonate : make a fist of hands 3~4 mo : grasp reflex disappear play the hands, want grasp object 6~7 mo : transfer object hand to hand 9~10 mo : thumb-finger grasp 12~15 mo : can use spoon, scribbles
3. LANGUAGE DEVELOPMENT ●   A high  nervous  activity,  peculiar  in  human being ●   Express thinking, idea, related with intelligence ●  Basic conditions : organ, hearing sense, language center, contact with people ●  3 step : sound production, understand, expression ●   From a word->simple sentence ->complex sentence
Table  Development  of  Language Age(mo)  Reception language  expression language  6  self name  crying  “ yi ya” 12  name of family members  hand express “ good by”, “give me”  mama, papa 15  name of body  hand  express simple word group  two words simple order 18  name of people, thing, picture  hand  express name of body(part)  15~20  words simple order  know family member 24  name of people, thing, picture  hand  express name of body(> 7 parts)  words increase simple order  know unfamiliar people 36  all name of things  use words correctly position  sentence  of 2~4 words Conception of 2  phases sex differentiate
4. PSYCHOLOGICAL DEVELOPMENT  ● psychological process: the cognition process, emotion, willing ● psychological character: personality tendency, personality psychological feature ● not psychological phenomenon in early neonate.  ● Psychological active  when reflexes formation
(1)DEVELOPMENT OF ATTENTION  ● the begin of cognitive process ● unconscious attention: nature occur based on cognition process. ● conscious   attention: self aware has purpose.   ● unconscious attention mainly in infancy, conscious   attention develop  gradually.  5 ~ 6 yr old,  control attention
⑵ Development of Memory a complex  neuro-activity course of the storage and  read  out of  message  ●   3 system: feeling, short and long memory (recognition, reappear)  ●   In infancy, only recognition, not reappearance, the reappearance ability increase with age increase  ●   young children, only flax memory,  abstract logical memory develop with age
⑶ DEVELOPMENT OF THINKING   a high neuro-activity of recognizing the  essence  of  matter  and master  its development regularity  through  understand,  memory and analysis. kinds:  formal thinking, abstract logical  thinking  ● 1~3  yr.  Primary thinking ● 3 ~ yr.  Primary abstract thinking ● 6~11  yr.   Synthesis  analysis,  classification compare
⑷  DEVELOPMENT OF IMAGINATION   ●   Imagination : a new  thinking activity created in brain ●   1~2 yr. image begin ●   3 yr  ~ . primary image ●   school age. image develop fast   
⑸  DEVELOPMENT OF MOOD AND EMOTIDN ●   Mood : the expression produced from  things or idea ● Emotion: the experience in heart produced from the relationship of persons or things  based on the mood  ● In young children, manifestation of emotion  and mood--short time, strong response  easy change, expressive and true;  with age increase,  emotion and mood  response steady  gradually.
⑹  DEVELOPMENT OF WILL ●  will : a psychological course, actively overcome difficulties to achieve target. ●   will  begin  in young  children  and  develop gradually. ●  Formation of will related with environment, people and circumstances within which the  child lives.
⑺  DEVELOPMENT OF PERSONALITY AND  CHARACTER ●  synthesis model of psychological activity. ⑻  EARLY PERSONAL-SOCIAL BEHAVIOR ●   synthesis manifestation of psychological function every age period
EVALUATION OF PSYCHODEVELOPMENT 1. CONCEPTS ⑴  Intelligence: the ability of knowing the world and respond to the changes of conditions ⑵  Intelligent quotient (IQ) primary based on mental age (MA) Intelligence reach the level of the age Deviation IQ (DIQ): express by standard score  DIQ=100±15z ⑶  Development quotient (DQ ) Evaluating  the  neuro-psycho development  of young children, include sense, motor, language, personal-social, etc.
2.  PSYCHOMETRY ⑴   Screen of single development ①   Direction of vision-space ②   Relation of time-order  ③   Test of memory ④   Test of language
⑵  TEST OF ABILITY 1) SCREENING TESTS ①   Denver developmental screening test(DDST) 103 items, 4 capability areas(social, language,  fine-, gross-adaptive), < 6 yr old. ②   Peabody picture vocabulary test (PPVT) 120 pictures, each has 4 pictures-vocabulary, for 4 ~ 9 yr old.   ③   Draw –α– man Draw a person─evaluation for 5 ~ 9.5 yr old
2)DIAGNOSTIC TESTS ①   Bayley infantile development scale 163 neurodevelopment scale, 81 motor scale,  24 infantile behavior record, for 2 ~ 30 mo. ②  Gesell development scale ●   for 4 wk ~ 3 yr old;  ●   5 aspects:  gross motor,  fine motor,  adaptive, language, social ●   Express by DQ
③  Standford-Binet intelligent scale ●  for  2 ~ 18  yr old  ●   concrete knowledge: recognition, identification, memory. ●   abstract knowledge : thought, logic, quantity and vocabulary. ●  evaluate learning faculty diagnosis and degree classification of mental retardation
④  Wechsler preschool  and primary  scale of  intelligence (WPPSI) ●   for 4 ~ 6.5 yr old ●   contents: words and expression, operation -> express by IQ ⑤  Wechsler intelligence scale for children  revised (WISC-R) ●   for 6 ~ 16 yr old ●  contents: word and expression, operation.
⑶  ADAPTATION TEST social living ability scale for infant-student of primary school ●  for 6 mo ~ 15 yr. 6 kind  ability  for  every  age  period: independent living ability, motor ability,  home work, contact (with people), attend  collective activity, self administration
DISTURBANCE OF PHYSICAL GROWTH 1.DEVIATION OF GROWTH (1)  Deviation of weight ①   Overweight  + 2SD (97th percentage) ②   Underweight  – 2SD (3th percentage)
⑵   deviation of   height ①   Tall status   + 2 SD (97th percentage) ②   Stunt ( short  body length) – 2 SD  ( <3 rd  percentage) ⑶   Deviation of HC ①   Over HC + 2 SD (> 97%) ②   Small HC  - 2 SD (< 3%)
DISTURBANCE OF PSYCHOLOGICAL BEHAVIOR 1. BEHAVIOR PROBLEM  OF CHILDHOOD   (1)BREATH HOLDING   an abnormal behavior of apnea. most in 6 ~ 18 mo, disappear before 5 yr old occur in emotion change sharply (2)BITING THUMB  physiologic habit in yong infants, disappear with age,  if  continue  to  older  children  psychological disturbance
(3)ENURESIS   urinary incontinence after 5 yr old primary enuresis : retardation of the control ability  of  urination,  no  organ  diseases, most for  night time wetting secondary enuresis : secondary to urinary tract diseases, diabetes millitus, neurologic abnormalities.
(4) DEFIANCE, TEMPER TANTRUMS mainly 18mo ~ 3yr children  ⑸  LYING ⑹  SLEEP DISORDERS
2.  LEARNING DISABILITY ●   a special development disability. ●   obvious difficulty in acquiring and  applying the  listen, speak, read, write, count, inference.
  3. LANQUAGE AND SPEECH DELEY ●   In normal or disorder children  ●  Language screening for 1.5~2.0 yr old help early diagnosis, treatment, improve prognosis ●   Language expression delay: 2 yr old can’t say word 3 yr old can’t say  simple sentence
4. MENTAL RETAARDATION ●   A symptom of know and unknown disorders  ●   Factor(s) interfere the normal development of brain->abnormal function of adoption  ●   IQ-2 SD with deficit of adoption IQ-1.01~2.0 SD  ? IQ-2.01~3.0 SD mild IQ-3.01~4.0 SD severe IQ-5.01~ very severe
Conclusion  1 AGE PERIOD  1.  FETAL PERIOD 2.  NEONATAL PERIOD  3.  INFANCY  4.  TODDLER'S AGE  5.  PRESCHOOL AGE 6.  SCHOOL AGE 7.  ADOLESCENCE
Conclusion  2   T he regularity of development   ⑴  Development is a continuous course  but the speed of development  varies  in different stage.  ⑵   Unbalance development of different organs or systems: ⑶  General regularity of development ⑷   individual difference of development
General regularity of development from upper to lower:  from proximal to distant:  from gross  to  fine:  from simple to complex:  from junior to senior
Conclusion  3 PHYSICAL  GROWTH body weight body height  head circumference anterior fontanel  teeth
BODY WEIGHT at birth, 3 kg (2.5 ~ 4kg); 1yr old 9 kg, 2yr old 12 kg; 2 ~ 12yr old 2  kg/yr 1 ~ 6  mo: Wt (kg) = Wt at birth + mo×0.7(kg) 7 ~ 12 mo: Wt (kg) = 6(kg) + mo×0.25(kg) 2 ~ 12 yr: Wt (kg) = Age×2(kg) + 7(8)(kg)
body height (standing height) ● Height 50 cm at birth;  <6 mo 2.5 cm/mo, >6 m  1.5 cm/mo) , 75 cm at 1yr old;  85 cm at 2 yr old;  after 2 yr old, 5 ~ 7cm / yr;
HEAD CIRCUMFERENCE  34 cm at birth,  44 cm in 6 mo,  46 cm in 1 yr old,  48 cm in 2 yr old,  50 cm in 5 yr old.
Anterior fontanel Length 1.5 ~ 2 cm at birth, increase gradually, after 6 mo, decrease with ossification gradually, closed 12 ~ 18 mo.
TEETH ●   Two sets  of teeth:  deciduous teeth (20),  permanent teeth (32) ●  Eruption of deciduous teeth:  appear at 4 ~ 10 mo, complete before 2.5 yr old
Conclusion  4 Neurodevelopment & sychodevelopment 1.Sense 2.Motor 3. Language 4. Psychological activity
Behavioral and psychological development Age  Motor Language Social development 1 month Hands fisted clench on contact Turning head to sound Stares indefinitely at surroundings, regards observer’s face 3 month Neck holding, Grasping things Cooing Recognized mother, eyes follow slowly the moving object  6 month Sitting without support,  reaching things Monosyllables (ma’ba’) Smiles at mirror image, transfer toy from one hand to the another 9 month Standing with support,  holding things Saying bisyllables (mama, dada) Waves hands to show good-bye, spontaneously rings bell
Behavioral and psychological development Age  Motor Language Social development 1 year Standing without support Two words with meaning, giving toy on request Plays a simple ball game, cooperates in dressing 2 year Walking upstairs, turning pages of books Using pronouns, simple sentence Verbalizes toilet needs consistently 3 year Riding tricycle, holding crayons with fingers Using plurals, telling a story Feeds self well, knows a few rhymes or songs 5 year Jumping freely, tying  shoelaces Knowing 4 colors, commenting on pictures Dresses and undresses without assistance, asks meaning of words
 

1 2009 Pediatrcs 留学生 Fang1

  • 1.
  • 2.
    Pediatrics is a medical sciences of researching on : ● The growth and development of children. ● The physical and psychological health ● Prevention and treatment of diseases , from the fetal to adolescence
  • 3.
    Age Group DistributionAnd The Principles Of Health Care 1. FETAL PERIOD 2. NEONATAL PERIOD (neonatal infant) 3. INFANCY (infant period) 4. TODDLER'S AGE 5. PRESCHOOL AGE 6. SCHOOL AGE 7. ADOLESCENCE
  • 4.
    1. FETAL PERIOD  Time-- From fertilized ovum to birth : about 294 days ( 40 wk from fertilization) ※ Early period of gestation (1st trimester) : from fertilization to 12 th wk. ● organs of systems formed ● heart beat by the end of 4 wk ● fetus formed about 8-10 wk ● sex distinguished ● important period of fetal, deformation by many factors (infection, radiation, chemistry, genetics, etc)
  • 5.
    Middle period of gestation (2nd trimester) : from 13th wk to 28th wk. ● organs growth rapidly ● function of organs maturate gradually. ● by the end of 28th wk, weight ≈ 1000 g, alive birth.
  • 6.
    Later period of gestation (3rd trimester) : From 29 th wk to 40 th wk ● increase in size of fetus involves primarily subcutaneous tissue and muscle mass. ● function of organs mature further
  • 7.
    fetal development hindered: still birth, abortion, premature labor, congenital malformation, etc.
  • 8.
    Health care of pregnant and fetus is very important: Fetus live dependent to mother. maternal health, nutrition, emotion, circumstance, diseases impact fetal development greatly. Mother invaded by harmful factors ( physical or chemical injury, malnutrition, infection, drugs and psycholgical wound, immune reaction)
  • 9.
    2. NEONATAL PERIODTime --from the ligature of umbilical cord at birth to 28 days. (<7 d , early period of neonate). Character : independent to mother, circum-stance change greatly.
  • 10.
    Health care : emphasize the nursing (warmth, feeding, cleaning, sterilization, separation).
  • 11.
    ※ Prenatal period --from the end of 28th wk of pregnancy to 7 days after birth (weight ≥1000g). Include 3 period: later gestation, the course of delivery, early neonate. ● Fetus undergo a great change. ● High prenatal mortality (still birth, birth death and neonate death). ● prenatal mortality is the criterion of evaluating the quality of obstetrics and pediatrics
  • 12.
    3. INFANCY (infantperiod) Time-- from deletion of UC to 1 yr old Character : ● The fastest period of growth and development. ● High demands of energy and nutrition but immature digestive function -> malnutrition, disturbance of digestion. ● Immature immunity -> infective and infectious diseases.
  • 13.
    Health care : ● Advocate breast feeding ● reasonable nutrition and supplemental food. ● planning inoculation vaccination ● Training good habit of hygiene ● prevent infection and wound
  • 14.
    4. TODDLER'S AGETime-- from the end of l yr to 3 yr old Character: ● Slower speed of growth and development ● Extended range of activity, increased contact with people and things ● intelligence development faster: increased language, thinking, adaptive, social ability. ● Poor ability of recognizing danger ● Easy to suffer from infection
  • 15.
    Health care ●prevention of accident wound and the toxic ● pay attention to feeding and nutrition to prevent malnutrition ● prevention of infectious and infective diseases
  • 16.
    5. PRESCHOOL AGETime--from the end of 3 rd yr. to enter school (6 ~ 7 yr old) Character : ● physical growth and development steady ● intelligence development fast, understanding gradually ● curious and like mimic ● express language, thinking and emotions by language ● changeable character
  • 17.
    Health care: ●Train good morality and good habit of hygiene, learning and work. ● pay attention to the hygiene of eyes and mouth ● Prevention of infection diseases, nephritis and rheumatic disease ● Prevention of accidence and wound
  • 18.
    6. SCHOOL AGETime--from 6 ~ 7 yr old to 12 (girl) ~ 13(boys) yr old Character : ● except genital system, organs of systems are similar to the adult level. ● morphology of brain is similar to adult ● more mature intelligent development ● Important period of getting knowledge and receiving education. ● Education for the development of the good morality, intelligence, physics, beauty and labor.
  • 19.
    Health care : ● Train correct posture of sitting, standing and walking, reason schedule of live, study and exercise. ● prevention of near sight and dental caries. ● pay attention to the change of emotion and behavior, to avoid nervousness.
  • 20.
    7. ADOLESCENCE Time--girlsfrom 11 ~ 12 yr old to 17 ~ 18yr old boys from 13 ~ 14 yr old to 18 ~ 20 yr old Character : ● Faster physical growth and development (2 nd peak) ● Reproductive system develop fast, and mature gradually. ● Unstable psychology, behavior and mind, Great impact from social contact
  • 21.
    Health care :● provide enough nutrition and rest, encourage do more exercise ● Strengthen education and guidance to establish good morality ● pay attention to education of physiology and hygiene ● prevention of goiter and hypertension
  • 22.
    THE BASIC ANDCLINICAL FEATURES OF PEDIATRICS
  • 23.
      1. The character of basic medicine ⑴ ANATOMY ※ Changing continuously with age in appearance(weight,height, head circumference, etc ) body proportions, bone development (fontanels, ossification centers), teeth, the size and position of organs, and skin, muscles, nouves and lymphatic system. ※ familiar with the normal regularity, help to judge the normal or abnormal
  • 24.
    ⑵ PHYSIO-BIOCHEMISTRY● The normal values change: HR, BP, RR, haematology, component of body fluid ● Functions mature gradually ● Immature function, easy to suffer from diseases ● high metabolism and immature renal function -> disturbance of water and electrolyte.
  • 25.
    ⑶ IMMUNITY ※Immune function of skin, mucous, lymphatic system, and cytokines mature with the age increase. physiologic low immunity of infancy ->easy suffer from infection. ● Ig G from mother disappear 3 ~ 5 mo, active IgG reach adult level in 6 ~ 7 yr. old-> respiratory and digestive system infection ● Ig M cannot transit ->easy to sepsis of G - in neonates ● S Ig A deficiency in respiratory ● Lower cytokines factors (complement, migration factor, etc) and phagocyte ability
  • 26.
    ⑷ PATHOLOGYresponse to pathogenic factors is different : ● pneumonococcus ->bronchopneumonia in infants, lobar peumonia in adult ● Vit D deficiency -> ricket (infants), achondroplasia (adult)
  • 27.
    2. CLINICAL FEATHUR⑴ Disease Pattern ※ The kinds of diseases are quite different from adult: congenital, hereditary, infective diseases more common. ● Congenital heart diseases (children) atherosclerosis heat diseases (adult). ● acute leukemia (children), malignent tumor (adult). ● hyperbillirubinemia of the newborn, febrile convulsion not in adult
  • 28.
    ⑵ CLINICAL MANIFESTATION● Onset acute or abrupt ● Clinical course: repeat (relapse), fluctuate, change fast. ● Lacking limitation ability->easy to complicate septicemia, while the prime focal infection is not discovered ● Severe infection in newborn or weak infants: hypothermia, refuse to eat, dull expression, WBC↓.
  • 29.
    ⑶ DIAGNOSIS ●cannot complain and describe symptoms diagnosis based on the history ( from parent),epidemic data, signs and lab data ● Clinical manifestation and the kinds of diseases are special to every age period, pay attention to age when diagnosis,
  • 30.
    same symptom -different diagnosis ● Convulsion in neonates : birth trauma asphyxia, intracranial hemorrhage and congenital abnormalities ● <6 mo infants : vitamin D deficiency or CNS infection ● >3 yr old (no fever): epilepsy
  • 31.
    ⑷ TREAMENT ● Doses of drug change with age or weight ● Some methods special in children ● Fluid therapy is special ● Poor immunity, modulation and adaptive capability->complications. pay attention to complication when treat origin disease ● Well nursing and support treatment are important
  • 32.
    ⑸ PROGNOSIS ● Recovery fast by prompt and proper treatment ● Vigorous recovery ability of tissue and organs->less sequels ● Exacerbation fast ->death
  • 33.
    3. Character ofprevention Prevention is very important in pediatrics ● plan immunization is the most important one->eliminate or decrease infectious disease ● Monitoring the growth and development-> find problem and correct them ● Hereditary consult->prevent the development of some diseases ● Neonatal screen prevent some diseases development. ● prevent some adult diseases from child
  • 34.
  • 35.
    THE REGULARITY OFGROWTH AND DEVELOPMENT Growth: grow up of body and organs, quantitative increment Development: functional maturity of cells, tissues and organs, qualitative changes. Both can't be separated definitively.
  • 36.
      Some regularityof development ⑴ Development is a continuous course but the speed of development varies in different stage. there are two peaks : first & 2 nd peak. ⑵ Unbalance development of different organs or systems: nerve system earlier, genital system later, lymph system fast in early period and then shrunk.
  • 37.
  • 38.
    ⑶ Generalregularity of development from up to down: lift head, chest, sit, stand, walk from proximal to distal: arm->hand, leg-> foot from gross to fine: hold object by palm-> finger from simple to complex: draw line->circle -> picture of person from elementary to advanced : see, feel, recognize, remember, think, analyze, judge.
  • 39.
    individual variation of development influence on sex, hereditary, environment, cultural factors. with age increase, difference obviously.
  • 40.
    THE INFLUENCE FACTORSOF DEVELOPMENT ⑴ Heredity(inheritance): The feature, potentiality, trends and limitation ⑵ Sex ⑶ Nutrition ⑷ Conditions of pregnant mother: environment, nutrition, emotion, diseases ⑸ Living environment: sun light, fresh air, clean water; living schedule, nursing, education, exercise. ⑹ Diseases: Acute or chronic diseases, endocrine diseases, congenital diseases.
  • 41.
    Indicators of Physical Growth   1.THE GROWTH BEFORE PUBERTY ⑴ BODY WEIGHT ● The sum of all tissues (bone, organs, muscle, fat) and body fluid reflect the physical growth, esp. nutrition. The basis of calculating dose of drugs and fluid infusion.
  • 42.
    Body weight: at birth, 3 kg (2.5 ~ 4kg); decrease 3 ~ 9 % 1st wk; fast increase 1 ~ 6 mo (1st peak); 1yr old 9 kg, 2yr old 12 kg; 2 ~ 12yr old 2 kg/yr; fast increase in adolescence (2nd peak)
  • 43.
    ● The formulasfor average weight of normal infants and children. 1 ~ 6 mo: Wt (kg) = Wt at birth + mo×0.7(kg) 7 ~ 12 mo: Wt (kg) = 6(kg) + mo×0.25(kg) 2 ~ 12 yr: Wt (kg) = Age×2(kg) + 7(8)(kg) 10 % individual difference
  • 44.
  • 45.
  • 46.
  • 47.
    ⑵ INCREASEOF STATUS ① body height(standing height) ● The length from the top of head to sole (foot- plate), an index of evaluating bone growth. ● Height 50 cm at birth; increment of 1st yr 25 cm(1st peak), (<6 mo 2.5 cm/mo, >6 m 1.5 cm/mo) , 75 cm at 1yr old; 85 cm at 2 yr old; after 2 yr old, 5 ~ 7cm / yr; fast in adolescence (2 nd peak).
  • 48.
    The formulas for average height of normal children (2 ~ 12 yr old) Height (cm) = Age (years)×7 + 70 cm ● Height include 3 parts : head, spine, lower extremities. The proportion of head, trunk, lower extremities different with age. In 1st yr head increase fastest, spine secondary, In adolescence, lower extremities increase mainly,
  • 49.
  • 50.
  • 51.
    Upper segment : from head top to the upper border of pubic symphysis. ● Lower segment : from the upper border of symphysis pubis to sole. ● Midpoint: At birth: on umbilicus, 2yr old: below umbilicus, 6 yr old: on the midpoint between umbilicus and pubic, 12 yr old : on the upper border of pubic symphysis (upper segment = lower).
  • 52.
    ② SITTINGHEIGHT ● The length from head top to ischial bone (head + spine) ● The regularity of sitting height increase≈ upper height, Sitting height / body height decrease with age increased. ③ Span: distance of finger-tip represent the growth of the long bone of upper extremities
  • 53.
    (3)HEAD CIRCUMFERENCE (HC)● The length surrounding a circle of head via upper border of eyebrow bow and occipital node. ● Related closely to brain development . ● Head circumference: 34 cm at birth, 44 cm in 6 mo, 46 cm in 1 yr old, 48 cm in 2 yr old, 50 cm in 5 yr old. ● HC=1/2Ht+10cm
  • 54.
  • 55.
    (4)CHEST CIRCUMFERENCE (CC)● The length of a circle of chest. (lower border of nipple). ● Related closely to the development of lung and bone, muscle, and fat of thorax. ● Chest circumference: 32 cm at birth, 46 cm by the end of 1 yr ( = head), after 1 yr old, > head circumference. (5) UPPER ARM CIRCUMFERENCE(UAC) <1yr 、 fast, 1~5yr. Slow(1 ~ 2cm) as a index of evaluating nutrition >13.5cm good, <12.5cm poor
  • 56.
    Proportion of bodyand the symmetry ⑴ Proportion of head and stature Changes during the growth ⑵ Weight by stature ● Weight-for-height W/H ● Weight(kg)/height(cm) ×1000--Quetelet index ● Weight(kg)/height(cm)×10 4 --Kaup index
  • 57.
  • 58.
    Trunk-leg ratio ● Sitting height/standing height ● represent the growth of lower extremities ● at birth(0.67)->14 yr (0.53) ● Some diseases (hypothyrodism) affect the ratio ⑷ span and height ● span < height(1 ~ 2cm) ● if span> height (Marfan syndrome)
  • 59.
    2. GROWTH ON PUBERTY ● 2 nd peak height velocity(PHV) ● Sex difference (boy later 2yr, increase/yr> girl) ● girl 8cm/yr. boy 9cm/yr ● weight increase parallel with the height
  • 60.
    3. Assessment ofgrowth ⑴ The express methods of the measure value 1) Express method of statistics and cut off point ● Dispersion method x ± SD: ±2SD, 95.4% ● Percentage method: P 3 ~P 97 , 94% ● Z score=(x – x ) /SD ● mean Value method: M≈x 、 P 50
  • 61.
    2) The expressof result ● Grade dividing ● growth chart
  • 62.
  • 63.
    ⑵ Thecontents of the growth evaluation. 1) Development level ● growth value vs conference ● premature: correct fetal age to 40 wk. Ht 40mo, HC 18mo. wt 24mo catch up the growth of mature neonates
  • 64.
    2) Growthvelocity ● continuously measure an index during a period 3) proportion of body: ● weight by stature weight for height, W/H ● trunk-leg ratio (sitting W/H)
  • 65.
    What is thepediatrics ? ● The growth and development of children. ● The physical and psychological health ● Prevention and treatment of diseases , from the fetal to adolescence Remind of 1
  • 66.
    Remind of 2 AGE PERIOD 1. FETAL PERIOD 2. NEONATAL PERIOD 3. INFANCY 4. TODDLER'S AGE 5. PRESCHOOL AGE 6. SCHOOL AGE 7. ADOLESCENCE
  • 67.
    Remind of 3  Some regularity of development ⑴ Development is a continuous course but the speed of development varies in different stage. there are two peaks : first & 2 nd peak. ⑵ Unbalance development of different organs or systems: nerve system earlier, genital system later, lymph system fast in early period and then shrunk.
  • 68.
    Remind of 3⑶ General regularity of development from up to down: lift head, chest, sit, stand, walk from proximal to distal: arm->hand, leg-> foot from gross to fine: hold object by palm-> finger from simple to complex: draw line->circle -> picture of person from elementary to advanced : see, feel, recognize, remember, think, analyze, judge.
  • 69.
    Remind of 3⑷ individual variation of development
  • 70.
    Remind of 4Indicators of Physical Growth ⑴ BODY WEIGHT (2) body height (standing height) (3)HEAD CIRCUMFERENCE (HC) (4)CHEST CIRCUMFERENCE (CC) (5) UPPER ARM CIRCUMFERENCE(UAC)
  • 71.
    Remind of 4Proportion of body and the symmetry ⑴ Proportion of head and stature ⑵ Weight by stature ⑶ Trunk-leg ratio ⑷ span and height
  • 72.
    Remind of 5:the chart
  • 73.
  • 74.
    1.DEVELOPMENT OF BONES⑴ Development of Cranial bone ● Evaluation base on head circumference, fontanels, cranial sutures. ● Anterior fontanel : a rhombic gap composed of the border of parietal and frontal bones. Length 1.5 ~ 2 cm at birth, increase gradually, after 6 mo, decrease with ossification gradually, closed 12 ~ 18 mo.
  • 75.
    Posterior fontanel : a triangular gap composed of the border of parietal and occipital bones. very small or closed at birth, finally closed 6 ~ 8 wk. ● Cranial sutures: still separated at birth, closed 3 ~ 4 mo.
  • 76.
  • 77.
    Anterior fontanel : closed early or too small--microcephalia; closed later or large--ricket or cretinism; full (plump) -- cranial pressure↑ (hydrocephalus, encephalitis, cephalitis meningitis, tumor of brain); sunken (depression)--dehydration, severe emaciation (wasting).
  • 78.
    (2).DEVELOPMENT OF SPINALCOLUMN ● reflect to the development of spinal bones, faster during 1st yr. ● 3 mo when lift head, cervical vertebra forward protruding (1st bend) ; 6 mo when sitting, thoracic vertebra backward protruding (2nd bend) ; after 1 yr when walking, lumbar vertebra forward protruding (3 rd bend) ● 3 bends help body balance. abnormal posture or diseases-> spind deformity.
  • 79.
    (3) DEVELOPMENT OFLONG BONES ● Growth of long bones : ossification of meta-physical cartilage and osteogenesis of sub- periosteum. The fusion of diaphyseal epiphysis--the mark of the end of long bone growth. ● Growth of flat bones : ossification of periosteum.
  • 80.
    Evaluation of bone development status: Ossification centers--bone age In neonates: ossification center of heal, ankle and femoral bone appeared.
  • 81.
    Generally X-Ray ofleft hand is taken : neonates: no ossification center in wrist, 3 mo : capitate bone and hamate bone, 1 yr old : lower radial epiphysis. 2 ~ 2.5 yr old : pyamidal (triangulur) bone, 3 yr old : lumar bone
  • 82.
    3.5 ~ 5yr old : large and small mulangular bone 5 ~ 6 yr old : scaphoid 6 ~ 7 yr old: lower ulnar epiphysis 9 ~ 10 yr old: postular bone In 10 yr old, all (10) ossification have been appeared.
  • 83.
    from 1 ~9 yr old: the number = year(s)+1 ● Significance: retarded bone age--deficiency of growth hormones, hypothyroidism, renal tubular acidosis; advanced bone age--- central precocious puberty, congenital adenalhyperplasia
  • 84.
  • 85.
    2. DEVELOPMENT OFTEETH ● Two sets of teeth: deciduous teeth (20), permanent teeth (32) ● Eruption of deciduous teeth: appear at 4 ~ 10 mo, complete before 2.5 yr old ● The order of deciduous teeth: ①lower central incisors, ② upper central incisors, ③ upper lateral incisors, ④ lower lateral incisors, ⑤ lower first molars, ⑥ upper first molars, ⑦ lower cuspids, ⑧ upper cuspids, ⑨upper second molars, ⑩ lower second molars.
  • 86.
  • 87.
    ● After 6yr old : 1 st permanent tooth (1st molar) erupt From 7 ~ 8 yr old on, deciduous teeth shed as eruption order, instead by permanent teeth : the 1st and 2nd bicuspid instead of the 1st and 2nd molars, 2nd molars erupt in 12 yr old, 3 rd molars (wisdom teeth) erupt after 18 yr old ● Eruption of teeth; a physiologic phenomenon. some symptoms may occur in some babies : low fever, ptyalism, salivation, restless sleep, irritation. ● Retard eruption or bad quality of teeth : malnutrition, ricket, hypothyroidism, down's syndrome.
  • 88.
    3. Development offat tissue and muscle ⑴ Development of fat tissue ● number increase and bulk enlargement of the fat cell ● subcutaneous fat measurement ⑵ Develop of skeletal muscle ● increase of the number and bulk of muscle fiber ● closely related to the nutrition, live style and physical exercise
  • 89.
    3. DEVELOPMENTOF GENITAL SYSTEM ● regulate by hypothalamus-pituitary-gonad axis ● pre-adolescence ( female 9~11yr , male 11~13 yr ) physical growth acceleration, sexual sign appear ● mid-adolescence (14~16 yr old) 2 nd peak of physical grow, all sexual sign appear ● later-adolescence (female 17~21yr, male 19~24yr finish of genital development ● Precocious puberty:girl<8yr, boy <10yr delayed puberty: girl >14yr, boy>16yr.
  • 90.
    NEURODEVELOPMENT AND SYCHODEVELOPMENT
  • 91.
    1. DEVELOPMENTOF SENSE PERCETION ⑴ Visual sense (vision) Neonate : has visual function and light reflex of pupilla, tremor of eye ball some time 2nd mo: stares at object with primary coordination of head and eye, follows moving object 90 。 . 3~4 mo: has coordination of head and eye, follows moving object 180 。
  • 92.
    ⑵ Hearing(audition) sense poor at birth, good in 3~7 day. turns head to origin of sound (directional capability) 3 rd mo. 4yr old audition development complete ABR measure hearing capability. ⑶ Taste sense sensitive at bith. ⑷ Smell (olfactory) sense has smell sense at birth, unpleasant expression to strong smells by the end of 1 mo, can identify good or bad smell 3 ~ 4 mo, more sensitive 7 ~ 8 mo,
  • 93.
    ⑸ Senseof skin (tactile, pain, warmth sense and deep sense) at birth, tactile and warmth sensitive in oral and perior area, second in eye, palm, sole; pain sense retarded in neonate, improve in 2nd mo; warmth sense good at birth.
  • 94.
    Reflex ● inborn reflex at birth: rooting, sucking swallowing, grasp, Moro ● conditioned reflex: 2 W: the 1st conditioned reflex appear 2 m: conditioned reflex relate to vision, audition, taste, smell 3~4m: inhibitory conditioned reflex formation
  • 95.
    2. MOTOR DEVELOPMENTThe regular of motor development: from upper to lower, from the proximal to the distant, non-ordinate to coordinate,from front motion to reverse motion ( 1) Gross motor ① lift head : neonate, 1~2 second; 3 mo, steady; 4 mo, turn head ② roll over: neonate, in born from lateral position to supine position. 4~5mo, lateral to supine, 7~8 mo active from lateral to supine ③ sitting : 6 mo can sit, 8 mo steady
  • 96.
    ④ creeps: 3~4 mo, hand support, 8 mo, creeps forward; 12 mo, creeps with hand and knee ⑤ stand and walk : neonate: stepping reflex 5~6 mo. Stand supported by arm 8 mo. Stand a moment 10 mo. deliberate stepping 15 mo. Walk independent (walk alone)
  • 97.
    ( 2) Fineactivity Neonate : make a fist of hands 3~4 mo : grasp reflex disappear play the hands, want grasp object 6~7 mo : transfer object hand to hand 9~10 mo : thumb-finger grasp 12~15 mo : can use spoon, scribbles
  • 98.
    3. LANGUAGE DEVELOPMENT● A high nervous activity, peculiar in human being ● Express thinking, idea, related with intelligence ● Basic conditions : organ, hearing sense, language center, contact with people ● 3 step : sound production, understand, expression ● From a word->simple sentence ->complex sentence
  • 99.
    Table Development of Language Age(mo) Reception language expression language 6 self name crying “ yi ya” 12 name of family members hand express “ good by”, “give me” mama, papa 15 name of body hand express simple word group two words simple order 18 name of people, thing, picture hand express name of body(part) 15~20 words simple order know family member 24 name of people, thing, picture hand express name of body(> 7 parts) words increase simple order know unfamiliar people 36 all name of things use words correctly position sentence of 2~4 words Conception of 2 phases sex differentiate
  • 100.
    4. PSYCHOLOGICAL DEVELOPMENT ● psychological process: the cognition process, emotion, willing ● psychological character: personality tendency, personality psychological feature ● not psychological phenomenon in early neonate. ● Psychological active when reflexes formation
  • 101.
    (1)DEVELOPMENT OF ATTENTION ● the begin of cognitive process ● unconscious attention: nature occur based on cognition process. ● conscious attention: self aware has purpose. ● unconscious attention mainly in infancy, conscious attention develop gradually. 5 ~ 6 yr old, control attention
  • 102.
    ⑵ Development ofMemory a complex neuro-activity course of the storage and read out of message ● 3 system: feeling, short and long memory (recognition, reappear) ● In infancy, only recognition, not reappearance, the reappearance ability increase with age increase ● young children, only flax memory, abstract logical memory develop with age
  • 103.
    ⑶ DEVELOPMENT OFTHINKING a high neuro-activity of recognizing the essence of matter and master its development regularity through understand, memory and analysis. kinds: formal thinking, abstract logical thinking ● 1~3 yr. Primary thinking ● 3 ~ yr. Primary abstract thinking ● 6~11 yr. Synthesis analysis, classification compare
  • 104.
    ⑷ DEVELOPMENTOF IMAGINATION ● Imagination : a new thinking activity created in brain ● 1~2 yr. image begin ● 3 yr ~ . primary image ● school age. image develop fast  
  • 105.
    ⑸ DEVELOPMENTOF MOOD AND EMOTIDN ● Mood : the expression produced from things or idea ● Emotion: the experience in heart produced from the relationship of persons or things based on the mood ● In young children, manifestation of emotion and mood--short time, strong response easy change, expressive and true; with age increase, emotion and mood response steady gradually.
  • 106.
    ⑹ DEVELOPMENTOF WILL ● will : a psychological course, actively overcome difficulties to achieve target. ● will begin in young children and develop gradually. ● Formation of will related with environment, people and circumstances within which the child lives.
  • 107.
    ⑺ DEVELOPMENTOF PERSONALITY AND CHARACTER ● synthesis model of psychological activity. ⑻ EARLY PERSONAL-SOCIAL BEHAVIOR ● synthesis manifestation of psychological function every age period
  • 108.
    EVALUATION OF PSYCHODEVELOPMENT1. CONCEPTS ⑴ Intelligence: the ability of knowing the world and respond to the changes of conditions ⑵ Intelligent quotient (IQ) primary based on mental age (MA) Intelligence reach the level of the age Deviation IQ (DIQ): express by standard score DIQ=100±15z ⑶ Development quotient (DQ ) Evaluating the neuro-psycho development of young children, include sense, motor, language, personal-social, etc.
  • 109.
    2. PSYCHOMETRY⑴ Screen of single development ① Direction of vision-space ② Relation of time-order ③ Test of memory ④ Test of language
  • 110.
    ⑵ TESTOF ABILITY 1) SCREENING TESTS ① Denver developmental screening test(DDST) 103 items, 4 capability areas(social, language, fine-, gross-adaptive), < 6 yr old. ② Peabody picture vocabulary test (PPVT) 120 pictures, each has 4 pictures-vocabulary, for 4 ~ 9 yr old.   ③ Draw –α– man Draw a person─evaluation for 5 ~ 9.5 yr old
  • 111.
    2)DIAGNOSTIC TESTS ① Bayley infantile development scale 163 neurodevelopment scale, 81 motor scale, 24 infantile behavior record, for 2 ~ 30 mo. ② Gesell development scale ● for 4 wk ~ 3 yr old; ● 5 aspects: gross motor, fine motor, adaptive, language, social ● Express by DQ
  • 112.
    ③ Standford-Binetintelligent scale ● for 2 ~ 18 yr old ● concrete knowledge: recognition, identification, memory. ● abstract knowledge : thought, logic, quantity and vocabulary. ● evaluate learning faculty diagnosis and degree classification of mental retardation
  • 113.
    ④ Wechslerpreschool and primary scale of intelligence (WPPSI) ● for 4 ~ 6.5 yr old ● contents: words and expression, operation -> express by IQ ⑤ Wechsler intelligence scale for children revised (WISC-R) ● for 6 ~ 16 yr old ● contents: word and expression, operation.
  • 114.
    ⑶ ADAPTATIONTEST social living ability scale for infant-student of primary school ● for 6 mo ~ 15 yr. 6 kind ability for every age period: independent living ability, motor ability, home work, contact (with people), attend collective activity, self administration
  • 115.
    DISTURBANCE OF PHYSICALGROWTH 1.DEVIATION OF GROWTH (1) Deviation of weight ① Overweight + 2SD (97th percentage) ② Underweight – 2SD (3th percentage)
  • 116.
    deviation of height ① Tall status + 2 SD (97th percentage) ② Stunt ( short body length) – 2 SD ( <3 rd percentage) ⑶ Deviation of HC ① Over HC + 2 SD (> 97%) ② Small HC - 2 SD (< 3%)
  • 117.
    DISTURBANCE OF PSYCHOLOGICALBEHAVIOR 1. BEHAVIOR PROBLEM OF CHILDHOOD (1)BREATH HOLDING an abnormal behavior of apnea. most in 6 ~ 18 mo, disappear before 5 yr old occur in emotion change sharply (2)BITING THUMB physiologic habit in yong infants, disappear with age, if continue to older children psychological disturbance
  • 118.
    (3)ENURESIS urinary incontinence after 5 yr old primary enuresis : retardation of the control ability of urination, no organ diseases, most for night time wetting secondary enuresis : secondary to urinary tract diseases, diabetes millitus, neurologic abnormalities.
  • 119.
    (4) DEFIANCE, TEMPERTANTRUMS mainly 18mo ~ 3yr children ⑸ LYING ⑹ SLEEP DISORDERS
  • 120.
    2. LEARNINGDISABILITY ● a special development disability. ● obvious difficulty in acquiring and applying the listen, speak, read, write, count, inference.
  • 121.
      3. LANQUAGEAND SPEECH DELEY ● In normal or disorder children ● Language screening for 1.5~2.0 yr old help early diagnosis, treatment, improve prognosis ● Language expression delay: 2 yr old can’t say word 3 yr old can’t say simple sentence
  • 122.
    4. MENTAL RETAARDATION● A symptom of know and unknown disorders ● Factor(s) interfere the normal development of brain->abnormal function of adoption ● IQ-2 SD with deficit of adoption IQ-1.01~2.0 SD ? IQ-2.01~3.0 SD mild IQ-3.01~4.0 SD severe IQ-5.01~ very severe
  • 123.
    Conclusion 1AGE PERIOD 1. FETAL PERIOD 2. NEONATAL PERIOD 3. INFANCY 4. TODDLER'S AGE 5. PRESCHOOL AGE 6. SCHOOL AGE 7. ADOLESCENCE
  • 124.
    Conclusion 2  T he regularity of development ⑴ Development is a continuous course but the speed of development varies in different stage. ⑵ Unbalance development of different organs or systems: ⑶ General regularity of development ⑷ individual difference of development
  • 125.
    General regularity ofdevelopment from upper to lower: from proximal to distant: from gross to fine: from simple to complex: from junior to senior
  • 126.
    Conclusion 3PHYSICAL GROWTH body weight body height head circumference anterior fontanel teeth
  • 127.
    BODY WEIGHT atbirth, 3 kg (2.5 ~ 4kg); 1yr old 9 kg, 2yr old 12 kg; 2 ~ 12yr old 2 kg/yr 1 ~ 6 mo: Wt (kg) = Wt at birth + mo×0.7(kg) 7 ~ 12 mo: Wt (kg) = 6(kg) + mo×0.25(kg) 2 ~ 12 yr: Wt (kg) = Age×2(kg) + 7(8)(kg)
  • 128.
    body height (standingheight) ● Height 50 cm at birth; <6 mo 2.5 cm/mo, >6 m 1.5 cm/mo) , 75 cm at 1yr old; 85 cm at 2 yr old; after 2 yr old, 5 ~ 7cm / yr;
  • 129.
    HEAD CIRCUMFERENCE 34 cm at birth, 44 cm in 6 mo, 46 cm in 1 yr old, 48 cm in 2 yr old, 50 cm in 5 yr old.
  • 130.
    Anterior fontanel Length1.5 ~ 2 cm at birth, increase gradually, after 6 mo, decrease with ossification gradually, closed 12 ~ 18 mo.
  • 131.
    TEETH ● Two sets of teeth: deciduous teeth (20), permanent teeth (32) ● Eruption of deciduous teeth: appear at 4 ~ 10 mo, complete before 2.5 yr old
  • 132.
    Conclusion 4Neurodevelopment & sychodevelopment 1.Sense 2.Motor 3. Language 4. Psychological activity
  • 133.
    Behavioral and psychologicaldevelopment Age Motor Language Social development 1 month Hands fisted clench on contact Turning head to sound Stares indefinitely at surroundings, regards observer’s face 3 month Neck holding, Grasping things Cooing Recognized mother, eyes follow slowly the moving object 6 month Sitting without support, reaching things Monosyllables (ma’ba’) Smiles at mirror image, transfer toy from one hand to the another 9 month Standing with support, holding things Saying bisyllables (mama, dada) Waves hands to show good-bye, spontaneously rings bell
  • 134.
    Behavioral and psychologicaldevelopment Age Motor Language Social development 1 year Standing without support Two words with meaning, giving toy on request Plays a simple ball game, cooperates in dressing 2 year Walking upstairs, turning pages of books Using pronouns, simple sentence Verbalizes toilet needs consistently 3 year Riding tricycle, holding crayons with fingers Using plurals, telling a story Feeds self well, knows a few rhymes or songs 5 year Jumping freely, tying shoelaces Knowing 4 colors, commenting on pictures Dresses and undresses without assistance, asks meaning of words
  • 135.