2. INTRODUCTION
Pyrexia or fever is the rise in body temperature above the normal
level with upward set shift in thermoregulatory set point.
3. • Pyrexia –greek- pyr meaning fire.
• Febrile- latin- febris meaning fever.
4. Normal Temperature Regulation In Body
• Normally heat is continuously produced in
body and being lost to surroundings.
• Rate of heat production= Rate of heat loss,
person is said to be in heat balance.
• When there is disturbance of equilibrium between the
two, then body temperature may rise-fever or fall-
hypothermia.
5. • At 6 am 37.0 C (98.6 ° F)
• At 6 pm 37.6 C (99.6 ° F)- Increased BMR & Muscle activity.
• An a.m. temperature of >37.2°C (>98.9°F)
• An p.m. temperature of >37.7°C (>99.9°F) defines a fever
6. • Normal diurnal variation - 1 ° F
• Temperature:- Rectal > Oral > Axillary
7. Fever:- is an elevation of body temperature above normal
circadian variation as a result of change in
thermoregulatory centre, located in anterior hypothalamus.
Maximum body temperature is found in the evening
hours at the 4 p.m it is 990 F
Minimum body temperature is found at 6 a.m it is 98.020
F
8. • Relation with Pulse, Resp., BMR
with every 1° F rise of temp i.e >100 ° F
Pulse Rate increases 10
Respiratory Rate by 4
BMR by 7
Oxygen consumption increases by 13%
9. STAGES OF FEVER
4 Successive Stages –
• 1.Prodrome:- Non-specific complaints
Mild headache
Fatigue
General Malaise
Aches and Pains
• 2.Temperature rises:- Generalized shaking with chills and
feeling of being cold
Vasoconstriction
Piloerection precede onset of shivering
Skin is pale
12. PATHOGENESIS OF FEVER
TOXINS
TUMOURS
MICROBIAL
AGENTS TRAUMA
ACTIVATION OF INFLAMMATORY CELLS CAUSING RELEASE OF
VARIOUS CHEMICAL MEDIATORS LIKE-IL-2,6,8 TNF- alfa, beta,
gamma
Cells are known as pyrogens
INFLAMMATION
13. Concentration of pyrogens increases in the blood plasma
Increase concentration of pyrogens in blood causes excessive
synthesis of PGE 2 in hypothalamus
It causes increase the concentration of cyclic amp in
hypothalamus
It causes the upward set of thermoregulatory set point, which
sent the signal to different part of the body for heat
conservation and leading in rise to body temp k/a Pyrexia
14.
15. OTHER TYPES OF FEVER
Pel-Ebestin Fever:-In this rising body temp. is seen on
continuous basis for 7-12 days and then pt. remains afebrile
continuously and again come for the same duration.
Ex –Hodgkin's and Non Hodgkin's Lymphoma
Other Hematological Malignancy
Step Ladder Pattern:-It is seen salmonella infection which causes
typhoid fever .
In this gradual rising body temp. is seen over a period of days
and attain its maximum value forward by gradual decrease in
body temp. over a period of days.
16. Black Water Fever:- It is seen in cases of complicated malaria
caused by plasmodium falciparum in this excessive intra
vascular hemolysis takes place causes hemoglobinemia due to
hemoglobinemia urine becomes brownish black.
Differential Diagnosis with chills and rigor:-
-Malaria
-UTI
-Pneumonia
-Filariasis
-Kala azar
-Septicemia
17. Causes of fever with skin eruption:-
Chicken pox
Measles
Dengue
Typhoid fever (red spot)
Rubella infection
German measles
Herpes zoster
18. HYPERPYREXIA
Body temp. begins to rise and may reach level (41-42 0C)
Two broad types of Hyperthermia are recognized.
1-External hyperthermia- may occurs sporadically in
healthy young individual engaged in strenuous and
prolonged physical activity, especially in hot weather e.g
marathon runner
2-Classic hyperthermia-can result from a large number of
conditions.
19. CAUSES …
Disorder of excessive heat production
1 Heat stroke
2 Drug induced hyperthermia
3 Neuroleptic malignant syndrome
4 Serotonin syndrome
5 Malignant hyperthermia
6 Endocrinopathy
7 Central nervous system damage
8 Thyrotoxicosis
22. Clinical Features
1- High temperature
2- Dry skin
3- Cerebral dysfunction
4- Headache ,vertigo , abdominal discomfort
5- Hallucinations
6- Delirium
7- Pupil dilation
8- Muscle rigidity
9- Elevated level of creatinine phosphokinase
23. In More Severe Cases
1-Delirium
2-Convulsions
3-Rapid loss of consciousness
4-Focal neurological signs are unusual
5-Occasionally, bleeding tendency
6-Death may occurs in few hours due to ARF,
peripheral circulatory failure or multiple organ
failure
25. MANAGEMENT
The immediate goal of treatment should be rapid
cooling of the body (with in one hour)
The aim should be achieve a core temperature of 390
C/1020 F
26. FOR UNSTABLE PATIENTS
A - AIRWAY CONTROL
B - BREATHING
C - CIRCULATORY SUPPORT
Initate broad spectrum - antibiotic treatment
immediately for immunocomprised patients
and patients with unstable vital signs or
profound mental status changes.
27. MEASURES TO REDUCE BODY
TEMPERATURE
A physical measure-physical cooling is the main stay of
treatment
Immersion in ice water bath is quickest way to reduce the
temp.
A conventional method is “evaporative cooling” which
involves moving the patient to the nearest cool place, under
a revolving fan and removing most of the clothing
The body should be placed in the lateral decubitus position
Loosely wrapped in a cool wet sheet and frequently
sprinkled cold water
28. CONT….
Ice packs should be applied over the head and
limbs
Such measures should be continued until the rectal
temp drops to 390 c
Advanced techniques to reduce core temp are
based on
“intravascular heat exchange” principle and
involves either haemodialysis or heat exchange
catheters.
29. TREATMENT
• The attempt to lower the already normal hypothalamic set point of
little use.
• Physical cooling with sponging, fans, cooling blankets and even
ice bath should be initiated immediately in conjunction with the
administration of i/v fluid and appropriate pharmacological
agents.
• If sufficient cooling is achieved by external means , internal
cooling can be achieved by gastric or peritoneal lavage with iced
saline.
• In extreme circumstances, hemodialysis or even cardiopulmonary
bypass with cooling of blood may be performed.
30. • Antipyretics drugs – PCM, Acetaminophen
• Chlorpromazine – 500mg i/v
• Diazepam – 5 mg i/v
• Restlessness, Convulsions, Shivering will be controlled
with these drugs.
• Corticosteroids also recommended
• Oxygen also recommended
• NSAIDS should be given
• Salicylates also given
31. ज्वर
प्रमुख संदर्भ ग्रन्थ
१.चरक निदाि –अध्याय १
२.चरक नचनकत्सा –अध्याय ३
३.सुश्रुत उत्तर तन्त्र-अध्याय ३९
४.अष्टाड.हृदय निदाि –अध्याय २
५.अष्टाड.हृदय नचनकत्सा-अध्याय १
६.माधव निदाि (प्रथम खण्ड)-अध्याय २
७.र्ावप्रकाश-अध्याय ४
33. ज्वर का प्रर्ाव
“संिाप: सारुनिस्तृष्णा िाङ्ग् मर्दो हृर्दय व्यथा |
ज्वरप्रभावो जन्मार्दौ निधिे ि महिंमः ||” (ि.नि.३/२६)
निर्दाि:- ऋत्वहोरात्रर्दोषाणाम् मिश्च बलाबलाि् |
कालमथथवशाश्चैव ज्वरस्तं िं प्रपद्यिे ||
(ि.नि.३/७५)
वषाभनद ऋतु, नदि-रात, दोष और मि क
े बलवाि होिे से या
दुबभल होिे से तथा पूवभजन्मक
ृ त कमभ क
े कारण संतत आनद
ज्वर नर्न्न- नर्न्न अपिे काल पर हुआ करते है |
38. संप्राप्ति चक्र
निदाि सेवि+नमथ्या आहार नवहार
निदोष प्रकोप
आमाशय में दोषो का संचय
प्रक
ु नपत दोषो का रस धातु से संयोग
प्रक
ु नपत दोषो एवं रस धातु का सवभशरीर मे फ़
ै लिा
39. कोष्ठ अनि का अपिे आशय से बनहगभमि
साम दोषो क
े द्वारा स्वेदवह श्रोतो मे अवरोध
संपूणभ शरीर का उष्ण होिा
ज्वरोत्पनत्त
40. संप्राप्ति घटक
दोष - निदोष, नपत प्रधाि
दू ष्य - रस धातु एवं कोष्ठानि
स्रोतस - रसवह
अनधष्ठाि - आमाशय
स्त्रोतोदुनष्ट - संग
स्वर्ाव - आशुकारी
अनिदुनष्ट - अनिमांद्य
साध्यासाध्यता - साध्य
48. व्यवस्था पि
१ निर्ुविकीनतभ रस - १२५नम ग्रा
गोदिी र्स्म - २५०नम ग्रा
टंकण र्स्म - २५०नम ग्रा
मधु से १-२ मािा (सुबह – शाम)
२ सुदशभि चूणभ – ३ gm २ बार
३ संजीविी वटी -– 2 tab २ बार
४ नकरानतक्तानद क्वाथ - ४० नम ली
सम र्ाग जल से २ बार
५ हरीतकी चूणभ - ३ gm
१ मािा रात में सोिे से पहले