the autopsy Flashcards
What are the 2 types of autopsy
- Hospital
Consent must be obtained from the relatives. With the relevant consent, any material can be taken.
- Coroners
No consent of family needed (but their wishes should be considered)
Material can only be taken if it bears upon the cause of death (with Coroner’s permission)
Types of trauma
Bruise Cut Stab Laceration Abrasion
Bruise
1-an extraversated collection of blood which has leaked from damaged small arteries, venules and veins but NOT capillaries
2-Blunt trauma injury, occurs alone (skin intact)
-you can bruise after death
Abrasion
Graze or scratch due to tangential force (The most superficial of blunt trauma injuries.)
Confined to the epidermis
-can occur before and after death
Abrasion examples – Friction burn, Car radiator, Flooring, Whip, Stamp.
Laceration and where does it mainly occur
Split to skin due to blunt force trauma.
They are deep and will bleed
Common where skin can be compressed between the force and underlying bone e.g. Scalp, elbow, shin.
examples – Fall, Punch, Stick, Hammer, Bomb, Wheel of car (flaying).
Cut
Split in skin = longer than it is deep
Stab
Split in skin that is deeper than long
What are some Unnatural causes of unexpected sudden death?
Drugs
alcohol: GI problems and use drugs with it
Trauma: self induced
Caused by an object with a sharp or cutting edge
What are some natural causes of sudden unexpected death in cardiovascular disease
Coronary artery disease:
Cardiac arrhythmia is usual mode of death
Anatomical finding: coronary artery atherosclerosis
Other finding:
- myocardial scarring
- coronary artery thrombosis
- acute or subacute MI
Ischaemic heart disease
Hypertensive heart disease:
-accompanied by coronary artery atherosclerosis, usual death caused by acute cardiac arrhythmia
Other causes:
cardiomyopathy
myocardium
Natural cause of sudden unepxcted death in vascular system
Rupture aortic aneurism
associated with atheroscelorosis and hypertension
Natural cause of sudden unexpected death in CNS
Non traumatic subarachnoid heamorrhage:
berry aneurism: most common type of brain aneurysm
Intracerebral heamorrhage: caused by bleeding within the brain tissue itself
cause: hypertensions
Natural cause of sudden unexpected death in Respiratory system
- Pulmonary embolus
- asthma
Natural cause of sudden unexpected death in Gastro intestinal tract
Bleeding ulcers
pancreatitis
bleeding oesophageal varices
List 4 causes of cases that the coroner must check?
- The cause of death is unknown.
- The death was violent, unnatural or suspicious
- The death may be due to an accident
- The deceased has not been seen by the certifying doctor either after death or within the 14 days before death
Conducted to establish the cause of death
what are the reasons for hospital autopsies
Allows a very thorough examination of the deceased, the extent of their disease, their treatment and its effects
Audit – Major discrepancies between stated cause of death and actual cause of death (main diagnosis missed in 15% of cases subsequently autopsied Cameron et al 1980. )
Monitoring effectiveness of new treatments e.g. complex congenital heart disease.
Teaching e.g. unrivalled clinic pathological correlation.
Research e.g. knowledge of variant CJD relies heavily on study of post mortem brain tissue.