Artefactual contraction band necrosis of the myocardium in fatal air crashes.

摘要: Background: The detection of conditions associated with possible medical incapacitation is a crucial component the aviation autopsy. Acute myocardial ischemia notoriously difficult to diagnose at autopsy, although various pathological markers may strongly support diagnosis acute infarction occurring just prior crash. Hypothesis: Contraction band necrosis not be reliable indicator in aircraft crashes because forces on tissue sustained Methods: Microscopic examination myocardium fatal air crash occupants was compared control group suicidal hanging deaths. This study examined 80 fatalities and 44 age sex matched ligature controls. We assessed both presence extent contraction type lesions groups scored lesions. Results: were seen left ventricular all groups. There no significant difference between score for victim deaths However, widespread banding significantly more common victims (p = 0.032). impacts without post-crash fire those fire. Conclusions: necrosis-like isolation should considered as evidence cases massive trauma. Severe trauma, possibly result sudden stretching cardiac myocytes, cause microscopic lesion which indistinguishable from necrosis.