Distribution of cyanide in heart blood, peripheral blood and gastric contents in 21 cyanide related fatalities.

Forensic Sci Int

Drug & Toxicology Division, Forensic Science Department, National Forensic Service, 331-1 Shinwol 7-dong, Yangcheon-gu, Seoul 158-707, Republic of Korea.

Published: July 2011

AI Article Synopsis

  • The paper examines 21 cases of cyanide poisoning via oral ingestion, highlighting the importance of analyzing cyanide concentrations in biological specimens for forensic toxicology.
  • The study found significant variations in cyanide levels across different sample types (heart blood, peripheral blood, and gastric contents), with specific concentration ranges reported.
  • The results indicate a potential postmortem redistribution of cyanide, confirming that death from oral ingestion is possible, and the study presents detailed findings alongside a literature review.

Article Abstract

This paper presents 21 cases related to cyanide intoxication by oral ingestion. Cyanide concentrations in biological specimens are especially different from the type of postmortem specimens, and very important in interpreting the cause of death in postmortem forensic toxicology. Besides the detection of cyanide in autopsy specimens, the autopsy findings were unremarkable. Biological samples (0.2mL or equal to less than 10μg of cyanide) were analyzed colorimetrically for cyanide. In a series of 21 cyanide fatalities, the concentration ranges (mean±SD) of cyanide in heart blood, peripheral blood and gastric contents were 0.1-248.6mg/L (38.1±56.6mg/L), 0.3-212.4mg/L (17.1±45.1mg/L) and 2.0-6398.0mg/kg (859.0±1486.2mg/kg), respectively. The ranges of the heart/peripheral blood concentration ratio and gastric contents/peripheral blood concentration ratio were 0.3-10.6 (mean 3.4) and 3.4-402.4 (mean 86.0), respectively. From the difference of cyanide concentration and the concentration ratio of cyanide in different types of postmortem specimens, the possibility of the postmortem redistribution of cyanide and death by oral ingestion of cyanide could be confirmed. We reported cyanide fatal cases along with a review of literature.

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http://dx.doi.org/10.1016/j.forsciint.2011.04.014DOI Listing

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