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Lung and heart pathology in fatal drug addiction. A consecutive autopsy study
Insights
Drug addicts show significant lung tissue damage, including bleeding and fibrosis, likely from heroin use. Microscopic analysis revealed birefringent material, suggesting non-heroin drug abuse, with no significant heart alterations observed.
Area of Science:
- Forensic Medicine
- Toxicology
- Pulmonary Pathology
Background:
- Drug abuse, particularly heroin, poses significant health risks.
- Understanding the long-term histological effects of drug abuse on vital organs is crucial for medico-legal assessments.
Purpose of the Study:
- To investigate the histological changes in lung and heart tissues of drug addicts.
- To identify potential markers of drug abuse and differentiate between drug types based on tissue alterations.
Main Methods:
- Comparative histological analysis of lung and heart tissue sections.
- Examination of 33 drug addicts and 20 control individuals.
- Microscopic identification of bleeding, fibrosis, birefringent material, and angiothrombosis.
Main Results:
- Focal bleeding (94%) and haemosiderin (91%) were prevalent in drug addicts' lungs, linked to hypoxia from heroin.
- Birefringent material was found in 94% of drug addicts, often within granulomas and giant cells, indicating non-heroin drug abuse.
- Angiothrombosis was observed in 18% of cases, suggesting intravenous injection of dissolved tablets.
- No significant heart alterations or pulmonary hypertension were noted.
Conclusions:
- Heroin abuse leads to substantial lung pathology, including bleeding and fibrosis.
- Presence of birefringent material suggests concurrent abuse of other substances, possibly via intravenous injection.
- Histological examination provides insights into drug abuse patterns and their impact on organs.
Abstract:
Lung and heart sections from 33 drug addicts submitted for medico-legal autopsy at the Institute of Forensic Medicine in Copenhagen were studied together with tissue sections from 20 'normal' persons. In the drug addict cases focal bleedings in lung tissue were found in 94%, signs of earlier bleedings, haemosiderin containing histiocytes, were seen in 91%, and focal fibrosis in 46%. The bleeding episodes may be due to hypoxia in connection with heroin intake. In 94% of the drug addicts birefringent material in lung tissue was demonstrated, in 58% in granulomas and giant cells, in 27% in giant cells only and in 9% in isolated histiocytes. The material was localized in the wall of pulmonar arteries and/or in the interstitial tissue, undoubtedly depending on the duration of the abuse. In 18% angiothrombosis was seen, in all cases granulomas/giant cells were observed in the wall of the vessel concerned. The results indicate periodical intravenous injection of dissolved tablets in addition to heroin. Histological signs of pulmonary hypertension were not seen, possibly due to the fact that abuse of central stimulants is very rare in Denmark. Regarding heart alterations no significant differences were demonstrated between drug addicts and controls. The only note-worthy finding was focal infiltration of lymphocytes in the atrio-ventricular bundle in two drug addicts, the meaning of which is uncertain.