Published in:
Open Access
01-11-2020 | Nausea | Original Article
Aspiration in lethal drug abuse—a consequence of opioid intoxication
Authors:
Johannes Nicolakis, Günter Gmeiner, Christian Reiter, Monika Heidemarie Seltenhammer
Published in:
International Journal of Legal Medicine
|
Issue 6/2020
Login to get access
Abstract
Aims
The primary objective of this study was to investigate whether the fatalities of opioid abuse are not only related to respiratory depression but also as a result of other side effects such as emesis, delayed gastric emptying, a reduction of the cough reflex, and impaired consciousness leading to the aspiration of gastric contents, a finding regularly observed in drug-related deaths.
Design
A retrospective exploratory study analyzing heroin/morphine/methadone-related deaths submitted to court-ordered autopsy.
Setting
Center for Forensic Medicine, Medical University of Vienna, Austria (2010–2015).
Participants
Two hundred thirty-four autopsy cases were included in the study: morphine (n = 200), heroin (n = 11), and methadone (n = 23) intoxication.
Findings
Analyses revealed that 41.88% of all deceased showed aspiration of gastric contents with equal gender distribution (p = 0.59). Aspiration was more frequent in younger deceased (χ2 = 8.7936; p = 0.012) and in deceased with higher body mass index (BMI) (χ2 = 6.2441; p = 0.044). Blood opioid concentration was lower in deceased with signs of aspiration than in non-aspirators (p = 0.013). Toxicological evaluation revealed a high degree of concomitant substance abuse (91%)—benzodiazepines (61.6%) and/or alcohol (21.8%).
Conclusions
There are lower opioid concentrations in deceased with signs of aspiration, a fact which strongly points to aspiration as alternative cause of death in opioid-related fatalities. Furthermore, this study highlights the common abuse of slow-release oral morphine in Vienna and discusses alternative medications in substitution programs (buprenorphine/naloxone or tamper-resistant slow-release oral morphine preparations), as they might reduce intravenous abuse and opioid-related deaths.