7. Definition
It is an injury which is caused by the
application of heat, chemical
substances to the external or
internal surfaces of the body
causing tissue destruction.
Exclusion --?
17. Cause of death
• Immediate – neurogenic, Co monoxide intox, acute respir intox.
• Late – gangrene, embolism, biochemical disturbances, secondary
shock
• Very late –marjolins ulcer
18. • Scene of death
• PM appearances – external
• Clothes, position of body, facial features,
• Crows feet
21. S.no Feature Heat rupture Lacerated wound
1 Cause Exposure to intense heat Blunt force
2 Site Fatty tissue Anywhere
3 Bleeding Absent Present
4 Margins No bruise and vital reactions Present
5 Floor Intact nerves and vessels Nerves and vessels cut
6 Associated
findings
Of burns Of trauma
22. S.NO Trait Heat hematoma EDH
1 CAUSE INTENSE HEAT BLUNT TRAUMA
2 LOCATION PARIETO TEMPORAL AT THE SITE OF TRAUMA
3 DISTRIBUTION DIFFUSE LOCALISED
4 MECHANISM EXPANSION OF BLOOD IN
DIPOLE
RUPTURE OF MMA
5 Appearance Honey comb Rubbery
6 CNS No injury Injury present
7 Co in clot Yes no
24. Age of burns
• Immediate – erythema
• 1 hour- vesication
• 6 hours – epidermis thinned out, inflammatory reaction in dermis
• 12-24 hours –exudate will begins to dry
• 36 hours – pus formation (if not healthy)
• 2-3 weeks – granulation tissue occurs
• Several weeks to months- scar formation
• 10-25 yrs – ulcer
25. s.No Trait AM BURNS PM BURNS
1 LINE OF
REDNESS
PRESENT ABSENT
2 BLISTERS BASE IS RED AND INFLAMED
EXUDATE –RICH IN PROTIENS
AND CHLORIDES
BASE IS PALE,DRY AND HARD
CONTAINS AIR
3 VITAL
REACTION
MARKED NONE
4 ENZYMES INCREASED ENZYMES NO SUCH
5 Co Hb Present Absent
26. MLI OF BURNS
• BRANDING
• MANNER OF INFLICTION
• NECKLACING
• SCTION 285 IPC
41. Heat cramps
• Muscle spasm resulting from combination of
• Prolonged excercise,
• Heavy sweating
• Excessive water repalacement in extreme heat
• Pathophysiology -?
• Symptoms
• Treatment
42. Heat syncope
• Def- is a condition resulting from ?
• NEITHER WATER OR SALT DEPLETION
• Predisposing factors- sudden change in environ
• prolonged standing
• Signs and symptoms
• Management
43. Heat exhaustion
• Is a condition resulting from severe
Dehydration after a huge amount of
Sweet has been lost
Pathophysiology
Thermo regulation is maintained
Sequelae –
Management – cold water with salt
44. Heat stroke
• Heat hyperpyrexia, siriasis, sun stroke, thermic fever
• Complete break down of TR mechanisms
• Complete loss of sweating
• Temp >41 *c
