- Febrile seizures are seizures associated with fever but without evidence of infection in the brain. They typically occur in children between 6 months and 5 years old.
- Simple febrile seizures are brief (<15 minutes) and occur once per fever episode while complex febrile seizures are longer or occur multiple times.
- Most febrile seizures are benign and have an excellent prognosis without neurological deficits or increased risk of developing epilepsy later in life, especially for those with simple febrile seizures and no other risk factors. Recurrence occurs in about 30-50% of children within 1-2 years.
Febrile seizure / Pediatrics
Simple vs. Complex seizure
Possible explanation of febrile seizure
Risk Factors for Febrile Seizures
Risk Factors for Recurrence of Febrile Seizure
Risk Factors for Occurrence of Subsequent Epilepsy After a Febrile Seizure
Genetic Factors
Evaluation
Lumbar Puncture
Optional LP
Electroencephalogram
Blood Studies
Neuroimaging
TREATMENT
this is a complete discussion and an approach to a child with febrile seizure / convulsion.
It contains:-
Case scenario
Causes of Seizures in the setting of fever
Definition of Febrile Seizure
Age of Occurrence
Types of Febrile Convulsions
Risks of Recurrent Febrile Seizures
Risk For Developing Epilepsy After Febrile Seizures
Workup for Febrile Seizure
Red Flags in Febrile Seizures
Treatment
Prognosis
Febrile seizure / Pediatrics
Simple vs. Complex seizure
Possible explanation of febrile seizure
Risk Factors for Febrile Seizures
Risk Factors for Recurrence of Febrile Seizure
Risk Factors for Occurrence of Subsequent Epilepsy After a Febrile Seizure
Genetic Factors
Evaluation
Lumbar Puncture
Optional LP
Electroencephalogram
Blood Studies
Neuroimaging
TREATMENT
this is a complete discussion and an approach to a child with febrile seizure / convulsion.
It contains:-
Case scenario
Causes of Seizures in the setting of fever
Definition of Febrile Seizure
Age of Occurrence
Types of Febrile Convulsions
Risks of Recurrent Febrile Seizures
Risk For Developing Epilepsy After Febrile Seizures
Workup for Febrile Seizure
Red Flags in Febrile Seizures
Treatment
Prognosis
Slideshows on febrile seizures.. Simple and basic details available. For medical students, housemen and training doctors who wish to revise on the topic.
Title: Sense of Smell
Presenter: Dr. Faiza, Assistant Professor of Physiology
Qualifications:
MBBS (Best Graduate, AIMC Lahore)
FCPS Physiology
ICMT, CHPE, DHPE (STMU)
MPH (GC University, Faisalabad)
MBA (Virtual University of Pakistan)
Learning Objectives:
Describe the primary categories of smells and the concept of odor blindness.
Explain the structure and location of the olfactory membrane and mucosa, including the types and roles of cells involved in olfaction.
Describe the pathway and mechanisms of olfactory signal transmission from the olfactory receptors to the brain.
Illustrate the biochemical cascade triggered by odorant binding to olfactory receptors, including the role of G-proteins and second messengers in generating an action potential.
Identify different types of olfactory disorders such as anosmia, hyposmia, hyperosmia, and dysosmia, including their potential causes.
Key Topics:
Olfactory Genes:
3% of the human genome accounts for olfactory genes.
400 genes for odorant receptors.
Olfactory Membrane:
Located in the superior part of the nasal cavity.
Medially: Folds downward along the superior septum.
Laterally: Folds over the superior turbinate and upper surface of the middle turbinate.
Total surface area: 5-10 square centimeters.
Olfactory Mucosa:
Olfactory Cells: Bipolar nerve cells derived from the CNS (100 million), with 4-25 olfactory cilia per cell.
Sustentacular Cells: Produce mucus and maintain ionic and molecular environment.
Basal Cells: Replace worn-out olfactory cells with an average lifespan of 1-2 months.
Bowman’s Gland: Secretes mucus.
Stimulation of Olfactory Cells:
Odorant dissolves in mucus and attaches to receptors on olfactory cilia.
Involves a cascade effect through G-proteins and second messengers, leading to depolarization and action potential generation in the olfactory nerve.
Quality of a Good Odorant:
Small (3-20 Carbon atoms), volatile, water-soluble, and lipid-soluble.
Facilitated by odorant-binding proteins in mucus.
Membrane Potential and Action Potential:
Resting membrane potential: -55mV.
Action potential frequency in the olfactory nerve increases with odorant strength.
Adaptation Towards the Sense of Smell:
Rapid adaptation within the first second, with further slow adaptation.
Psychological adaptation greater than receptor adaptation, involving feedback inhibition from the central nervous system.
Primary Sensations of Smell:
Camphoraceous, Musky, Floral, Pepperminty, Ethereal, Pungent, Putrid.
Odor Detection Threshold:
Examples: Hydrogen sulfide (0.0005 ppm), Methyl-mercaptan (0.002 ppm).
Some toxic substances are odorless at lethal concentrations.
Characteristics of Smell:
Odor blindness for single substances due to lack of appropriate receptor protein.
Behavioral and emotional influences of smell.
Transmission of Olfactory Signals:
From olfactory cells to glomeruli in the olfactory bulb, involving lateral inhibition.
Primitive, less old, and new olfactory systems with different path
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TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Ve...kevinkariuki227
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Verified Chapters 1 - 19, Complete Newest Version.pdf
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Verified Chapters 1 - 19, Complete Newest Version.pdf
Basavarajeeyam is an important text for ayurvedic physician belonging to andhra pradehs. It is a popular compendium in various parts of our country as well as in andhra pradesh. The content of the text was presented in sanskrit and telugu language (Bilingual). One of the most famous book in ayurvedic pharmaceutics and therapeutics. This book contains 25 chapters called as prakaranas. Many rasaoushadis were explained, pioneer of dhatu druti, nadi pareeksha, mutra pareeksha etc. Belongs to the period of 15-16 century. New diseases like upadamsha, phiranga rogas are explained.
NVBDCP.pptx Nation vector borne disease control programSapna Thakur
NVBDCP was launched in 2003-2004 . Vector-Borne Disease: Disease that results from an infection transmitted to humans and other animals by blood-feeding arthropods, such as mosquitoes, ticks, and fleas. Examples of vector-borne diseases include Dengue fever, West Nile Virus, Lyme disease, and malaria.
micro teaching on communication m.sc nursing.pdfAnurag Sharma
Microteaching is a unique model of practice teaching. It is a viable instrument for the. desired change in the teaching behavior or the behavior potential which, in specified types of real. classroom situations, tends to facilitate the achievement of specified types of objectives.
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Approach to febrile seizure
1.
2. Definition of seizure
• A sudden transient neuronal activities manifested by
involuntary motor , sensory , autonomic or psychic
phenomenon, alone or in combination, which may or
may not be accompanied by alteration or loss of
consciousness.
3. Febrile seizure
National institute of health (1980) :
‘an event in infancy and early childhood usually
occurring between six months and five years of age
associated with fever but without evidences of
intracranial infection or defined cause for the seizure.’
ILAE (International League Against Epilepsy)
“ a seizure occurring in childhood after 1 month of age,
associated with a febrile illness not caused by an
infection of the CNS, without previous neonatal seizures
or previous unprovoked seizures”
4. Epidemiology
• Most common cause of seizure in children up to 5 yrs.
Asian countries : 7-14 % of children
• Age group
involved : (6/12 – 5 yrs)
peak onset : 14 mths – 18 mths
less likely : before 6 months
• Sex : boys> girls
• Race : all
5. Risk Factors for 1st Episode
Positive family history
– 1st degree or relatives – 4.5 times risk
Ante and perinatal factors
– Maternal preeclampsia, infections, proteinuria
– Prematurity, LBW, neonatal jaundice, asphyxia, birth
injuries
Immunizations
– Following DPT or MMR vaccinations
Infections
– Human herpes virus 6 infection
Miscellaneous
– Iron deficiency anemia
• Despite these RF, 50% pts with FS have no identifiable RF.
6. Genetic predisposition:
H/o FS in parents , risk for a child is 4 × gen pop.
H/o FS in siblings , risk for a child is 3.5 × gen
pop.
H/o FS in sibling & parents, risk for a child is
50%.
higher concordance in twins.
mode of inheritance : AD ( most likely )
7. Precipitating Factors:
Fever of any cause can precipitate seizure in a
predisposed child.
Infections commonly found in a child with FS
Acute Otitis Media
UTI
URI
Roseola
GI Infections
8. Types
1. Simple febrile seizure (Typical)
96.9% of FS
age group: 6/12 -5 yrs
generalized ( 4 -18% focal)
duration lasts usually for few seconds and max<15 mins
single attack / febrile episode( within 24 hrs of onset of
fever )
focus of fever other than CNS infections
positive family history
no post- ictal neurological deficit but brief post-ictal
drowsiness may be present
9. 2. Complex febrile seizure ( atypical)
- 3.1 % of FS
- focal seizure
- duration >15 mins
- multiple attacks in close succession
-post- ictal neurological deficit may be present
10. Clinical approach to Febrile Seizure
If child is having seizure – semiprone position - stabilize
with attention to ABCs and immediately control seizure
(diazepam)
History:
o confirm the event was seizure
o detailed history regarding
• events & circumstances it took place (association
with fever ,types, duration)
• serious illness (meningitis , encephalitis)
• cause of fever
• recent antibiotic use (partially treated meningitis)
11. o past history of seizure
o birth history and developmental history
o immunization history
o family history of seizure
o other potential causes of seizure ( head trauma,
diarrhea, medication/toxins)
12. General physical examination
with special attention to
– signs of meningitis
– CNS examination for neurological deficit, focal
signs
– focus of infection ENT & systemic examination
– any dysmorphism
13. Investigations:
no specific investigations
blood sugar – hypoglycemia
routine investigations – search for the source of fever
other investigations – nature of underlying febrile
illness
Lumbar puncture (LP)
- controversial
- only<5% of children with fever & seizure have
meningitis
- First attack seizure – LP :
- <12/12 child – strongly recommended
- 12-18/12 child – consider
- >18/12 child – consider on clinical grounds
14. Imaging study (CT, MRI)
– no role in SFS
– May help if atypical features or risk factors for
future epilepsy present (+)
Electroencephalogram (EEG):
– Not indicated in routine evaluation of first FS
15. Management
Pre hospital care:
pts with active seizure → place on his/her side to
prevent aspiration , maintain airway
if fever → remove blankets, heavy clothings
postictal pts → supportive care , antipyretics
(SOS)
16. Hospital (ER) care:
• active seizure → proper positioning, maintain airway,
oxygen, anticonvulsant ( diazepam 0.3mg/kg/dose
IV,PR )
• postictal patients → frequent monitoring
• other causes of seizure should be ruled out
• consider antipyretics / tepid sponging if febrile
• cause of fever should be sought and treated
• parental anxiety needs to addressed, proper
counseling
17. Further inpatient care :
should a patient be hospitalized ?
admission usually not required
most pts should be observed in ER till awake and alert
reasons for admission
more than one seizure in 24 hrs,
unstable clinical status,
high possibility of meningitis (<18/12 children),
Lethargy beyond postictal period,
uncertain home situation,
doubtful follow-up care
18. Further outpatient care:
F/U within 24 - 48 hrs for medical reevaluation and
parental counseling ( no brain damage , possibility of
recurrence , first- aid if recurred at home)
neither long term nor intermittent antiepileptic is not
indicated for SFS.
treatment of febrile seizures with antiepileptic
medications does not change the risk of developing
epilepsy (Knudsen et al. 1996, Rosman et al. 1993).
19.
20. Prevention
prophylaxis for possible recurrence of FS –
controversial
Continuous therapy /prophylaxis with
phenobabital(3-5mg /kg /day) or valproate (10-20mg
/kg /day)↓es recurrences
But the potential risk outweigh the potential benefit
Used in recurrent atypical febrile seizure or family h/o of
epilepsy
No role of phenytoin and carbamazepine in prophylaxis
Duration – 1-2 yrs or until 5yrs of age whichever comes
earlier
21. Intermittent prophylaxis:
- Oral diazepam at the onset of fever@
0.3mg/kg/dose
q8hr for 2-3 days (DOC)
- Oral clobazam@ 0.3-1.0 mg/kg/day for 2 days
(better)
- antipyretics –no evidences that it prevents
recurrence
22. Prognosis
• Benign nature - excellent normal neurological
functions.
• Neuro-developmental outcome :
patients with febrile seizures generally have normal
neuro-developmental outcome
23. Recurrence
occur in 1/3 of children(30-50%)
recurrence occur within 12 to 24 mths (max within
6/12)
37% show single recurrence
30% show two recurrences
17% show three or more recurrences
24.
25. Risk of epilepsy
• complex febrile seizure
• family history of epilepsy
• neurological abnormalities
• developmental delay
• initial febrile seizure before 9 mths of age
pts with risk factors : 9% chances of epilepsy
pts with no risk factors: 1% chances of epilepsy