JOURNAL CLUB: PROSPECTIVE CROSS SECTIONAL STUDY April 28th, 2020 Dr. Baishwanar Banerjee THE ARTICLE “Bowel wall hemorrhage”: A characteristic sign in hanging death A. Okazi MD Assistant Professor, F. Taghaddosinejad, MD Professsor et al Journal of Forensic and Legal Medicine November 5th, 2013 STUDY OUTLINE Hypothesis: Bowel wall haemorrhage can occur in hanging Design: Prospective cross sectional study Setting: Teheran autopsy hall Participants: Corpses of hanging victims Data Collection: Demographic data, autopsy findings Outcome: Presence of bowel wall haemorrhage BACKGROUND Crime scene evidence, defensive wounds etc Commonly designated as suicide Number of nonspecific findings Nonspecific- can occur after death Maxnier (1933) first reported in homicide victims Schultz (2011) -12.1% Important to rule out other causes MATERIALS Autopsied corpses in Teheran from June 2011 to June 2012 External examination findings documented Internal examination- Subcutaneous intramuscular neck haemorrhages, injuries to hyoid bone and thyroid cartilage, Simon’s haemorrhage and bowel wall haemorrhage Exclusion criteria- Abdominal trauma, coagulopathy, intestinal disease, advanced putrefaction Histopathology examination by forensic pathologist METHODS Samples divided and analyzed into two groups based on presence of bowel wall hemorrhage. Study approved by the ethical committee of Tehran University of Medical Sciences and Department of Forensic Medicine. Written consent was obtained from the family members of the deceased. Data analyzed by SPSS software. Frequency and standard deviation were calculated. T-test and Chi-square test used for data analysis RESULTS 118 males (85.5%) , 20 females (14.5%) Mean age 35.5 +/- 14.09 years Duration between death and autopsy 12-24 hrs in 107 cases (77.5%) Complete hanging 61 cases (44.2%) Incomplete hanging in 77 cases (55.8%) Bowel wall hemorrhage 27 cases (19.6%)-11 cases in duodenum (37.5%), 8 cases in jejunum (30.8%),1 case in ascending colon (6.25%), 3 cases in transverse colon (18.75%), 1 case in both jejunum and duodenum (6.25%), 1 case in duodenum and transverse colon (6.25%) RESULTS (CONTD) Microscopic confirmation- 16 cases (11.6%)Duodenum 6 cases (37.5%), jejunum 4 cases (25%),1 case (6.25%) in ascending colon, 3 cases in transverse colon (18.75%),1 case in duodenum and jejunum (6.25%),1 case in duodenum and transverse colon (6.25%) DISCUSSION Frequency of bowel wall hemorrhage -11.6%similar to that obtained by Schultz 12.1% Larger sample size vis a vis Schultz (138 vs 74) Prospective study-contrasted with other previous retrospective studies Exclusion of criteria robust-strengthens study Schultz postulated systemic hypertension as contributing to incidence of bowel wall hemorrhage-not found in this study Future studies- small bowel characteristics like size, motility. Prolonged suspension may facilitate haemorrhage by intensifying gravity effects CONCLUSIONS/ IMPLICATIONS After excluding other causes, bowel wall hemorrhage can be considered as a characteristic sign of hanging in conjunction with other signs STRENGTHS Clinical relevance: Hanging is a commonly encountered case in the autopsy theatre in most mortuaries in India. Reproducibility: Can be performed in most medical colleges with a functioning histopathology unit with the help of pathologists. Novelty: Not mentioned in standard Indian textbooks of forensic medicine. Adequate sample size and statistical analysis using latest software Robust exclusion criteria WEAKNESSES Judicial hanging cases not considered for study-ethical and legal restraints Multicentric studies needed with larger sample size need to be performed for confirmation of theories