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Related Experiment Videos

Amount of postmortem bleeding: an experimental autopsy study.

Slobodan Nikolic1, Tatjana Atanasijevic, Jelena Micic

  • 1Institute of Forensic Medicine, School of Medicine, Belgrade, Serbia and Montenegro. bobanvladislav@yahoo.com

The American Journal of Forensic Medicine and Pathology
|April 13, 2004
PubMed
Summary

Postmortem bleeding from the thoracic aorta decreases over time after death. This study found a significant correlation between shorter postmortem intervals and greater bleeding, aiding in forensic analysis.

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Area of Science:

  • Forensic Pathology
  • Autopsy Studies
  • Postmortem Interval Estimation

Background:

  • Determining the time since death is crucial in forensic investigations.
  • Postmortem bleeding characteristics can offer insights into the postmortem interval (PMI).

Purpose of the Study:

  • To investigate the relationship between the amount of postmortem bleeding from the thoracic aorta and the time since death.
  • To establish a predictive model for estimating postmortem bleeding based on the postmortem interval.

Main Methods:

  • An experimental autopsy study was conducted on 64 cases (38 sudden natural deaths, 26 asphyxic deaths).
  • The amount of postmortem bleeding from the thoracic aorta was measured.
  • The time since death was recorded, ranging from 4 to 72 hours.

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Main Results:

  • Postmortem bleeding ranged from 100 to 1300 cm (average 440.6 cm).
  • A statistically significant negative correlation (r = -0.461, P = 0.000) was found between bleeding amount and time since death.
  • A linear regression formula was derived: bleeding (cm) = -9.571 * time (h) + 626.659.

Conclusions:

  • The amount of postmortem aortic bleeding is inversely related to the postmortem interval.
  • The established formula can estimate postmortem bleeding, potentially aiding in forensic casework, such as cases involving aortic rupture.