death and p.m changes
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THANATOLOGY
THANATOLOGY
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THANATOLOGY - is the scientific study of the phenomenon of death & . the .
processes relating to death.
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1_Somatic or Clinical death
2_ Molecular death
Types of death :
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Somatic or Clinical Death
Permanent and irreversible damage to;
= Brain= Heart= Lungs
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Molecular Death
Death of individuals tissues and cells
Process competes by two to three hours after somatic death (molecular time)
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Transplantation of organs like:
Liver – within 15 minutes
Kidney 30-40 minutes
Heart 1 hour
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Brain death
Brain death : unaware bed sores
Brain stem death deep coma
Whole brain death
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Preconditions Exclusions Brain stem reflexes
Apnea EEG Brain circulation
Diagnosis
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Brain- stem reflexes
Pupillary reflext Optic <- Occulomotor Vestibulo-reflex occular -> Auditory <- Abducent Corneal reflex -> Trigeminal <- Facial Gag reflex -> Glossopharyngeal <- Vagus Dolls eye reflex - > Auditory <- Abducent
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SUDDEN DEATH
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Sudden Death
Un expected death which caused rapid 2 h after terminal illness .
CAUSES
CVSRESPIRATORY
CNS GIT
CHILDREN
MICELLANOUS
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Cardiovascular
- Coronary disease- Congenital heart diseases- Valvular heart diseases- Hypertensive heart diseases- Infection- Cardiac tamponade- Aortic aneurysm
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Respiratory- Pulmonary embolism- Haemoptysis- Infections- Chronic asthmatics- Anaphylaxis- Obstruction to air passage
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C.N.S.- Intra cerebral haemorrhage- Sub arachnoid haemorrhage- Cerebral thrombosis- Embolism- Infections- Tumor of brain
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Abdominal
- Haemorrhage in the G.I. tract- Rupture of abdominal aneurysm- Liver diseases- Acute pancreatic bleeding
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- Endocrinal- Adrenal haemorrhage- Diabetic coma- Myxoedemic and parathyroid crisis- Iatrogenic- Abuse of drugs- Sudden withdrawal of steroids- Anesthesia- Mismatched blood transfusion.
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Miscellaneous Bacteriaemic shock Shock due to fear or emotion Malaria Special causes in children Cot death or SIDS Congenital mental abnormalities Concealed puncture wound.
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p.m. Change
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Changes After Death (Early Signs)Rigor Mortis
Changes in the Skin
Changes in the Eye
Cooling of the Body
Cadaveric spasm
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Changes After Death (Late Signs)Putrefaction
Adipocere Formation
Mummification
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RIGOR MORTIS
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Color change appear in right iliac fossa due to caecum
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THANK YOU