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Similar to Thantology.pptx useful in all classes for all
Thantology.pptx useful in all classes for all
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- 2. Definition : •Thanatology (Greekthanatos: death) is the scientific study of death in all its aspects including its cause and phenomena,types of death •It also includes bodily changes or events that accompany death incadaver (postmortem changes) and their MLI.
- 3. Death occurs intwo stages i. Somatic, systemic or clinical. • Complete and irreversible cessation of functions of circulatory,respiratory and central nervous system ii. Molecular or cellular. Molecular death means death of individual cells of different tissues or organs.
- 5. •The gap betweensomatic death and molecular death is important for two reasons, •1.Disposal of body. •2.Tranplantation purpose. (cadaveric organ transplantation )
- 6. Organ transplantation • Thesuccess of homograft mainly depends on . 1.Type of tissue involved . 2.Rapididity of its removal after circulation has stopped. Cornea - within 6 hrs Skin - within 24 hrs Bones - within 48 hrs Kidneys,heart, intestine,liver - soon after circulation stops
- 7. Brain stem death •“thestage at which all functions of brain stem have permanently and irreversibly ceased and is so certified “ •Practically brainstem death is considered as death of a person.
- 8. Harvard criteria ofBrain death : • 1.Unreceptivity &unresponsivity –total unawareness to external stimuli &unresponsive to painful stimuli • 2.No movements • 3.Apnea-absence of spontaneous respiration at least one hour • 4.Absence of elicitable reflexes • 5.Isoelectric EEG
- 9. Brainstem reflexes • 1.Absenceof pupillary response. • 2.Absence of corneal reflex. • 3.Absence of vestibulo-occular reflex. • 4.Absence of grimace. • 5.Absence of cough/gag reflex. • 6.Absence of cranial motar nerve response • 7.Absence of spontaneous respiration.
- 10. Brain Death Certification •i.Two medical practitioners must perform the brainstem death tests. •ii. The patient’s attending physician should participate in the determination of death wherever possible. •iii. The doctors involved should be experts in the technique of brain death assessment. •iv. Each doctor should perform the tests twice.
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- 13. -suspended animation "A stateof body in which the vital functions are at a low pitch that the body functions cannot be determined by ordinary methods of clinical examination". In this conditions actually the circulation, respiration, etc Do not stop but is being maintained in there minimum.
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- 17. S = syncope A=asphyxia C = coma • Coma I.e failure of function of brain • Syncope i.e failure of function of heart • Asphyxia i.e failure of function of respiratory system
- 19. Coma • Unconscious stateof person characterised by complete insensibility • When patient is partially conscious & response to deep &painful stimuli is called stupor
- 20. Syncope • Syncope resultfrom stoppage of functioning of heart with consequencent cessation of circulation • In syncope there occurs loss of consciousness with posture collapse due to an acute decrease in cerebral blood flow
- 21. Asphyxia • State inliving organism there is a acute lack of oxygen available for cell metabolism • Associate with inability of body to eliminate excessive carbon dioxide
- 23. Manner of death •The way in which cause of death comes into being • Types 1. Natural 2. Unnatural Homicidal Suicide Accident
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