Journal of forensic sciences
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Thirty-two self-immolation deaths by fire, representing about 1% of suicides, occurred in the province of Ontario (population 9 million), Canada, from 1986 through 1988. The victims, mostly male (male/female ratio, 26:6), were between 21 and 71 years old (mean age, 38 years). Although the scene of self-immolation was usually familiar to the deceased, some chose remote locations. ⋯ The remainder were found dead at the scene. The postmortem findings of soot in the airway and elevated carbon monoxide in the blood of most of these victims [the carboxyhemoglobin (COHb) concentration was in one case less than 10%, in ten cases greater than or equal to 10 to 50%, and in seven cases greater than 50%] were helpful in determining that the individuals were not only alive at the time of the fire but also that a significant number died from smoke inhalation and carbon monoxide poisoning. The highest levels of carbon monoxide were observed in victims discovered in motor vehicles.
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Nursing home residents comprise a large and rapidly growing segment of the national population. Despite this fact, the majority of deaths occurring in nursing homes are not investigated because of the significant medical illnesses suffered by most residents. Herein, we report a series of unnatural deaths in nursing home residents, including two homicides and seven accidental deaths. ⋯ Because of the serious, chronic illnesses suffered by these patients, attending physicians are often willing to sign death certificates without personally investigating the circumstances surrounding the patient's demise. The authors contend that unnatural deaths of nursing home patients are significantly underreported. Attending physicians and death investigators should be urged to investigate more fully sudden deaths in nursing home patients.
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Comparative Study
Ethanol distribution ratios between urine and capillary blood in controlled experiments and in apprehended drinking drivers.
Healthy men drank 0.51, 0.68, and 0.85 g of ethanol per kilogram of body weight as neat whisky in the morning after an overnight fast. During 6 to 8 h after the whisky was consumed, nearly simultaneous specimens of fingertip blood and pooled bladder urine were obtained for analysis of ethanol using an enzymatic method. The mean ratios of ethanol concentration [urine alcohol concentration (UAC)/blood alcohol concentration (BAC)] were mostly less than unity during the absorption phase. ⋯ In a second specimen of urine obtained approximately 60 min after an initial void (N = 135), the mean UAC/BAC ratio was 1.35 (standard deviation = 0.17). The magnitude of the UAC/BAC ratio of ethanol can help to establish whether the BAC curve was rising or falling at or near the time of voiding. The status of alcohol absorption needs to be documented if drinking drivers claim ingestion of alcohol after the offence or when back-estimation of the BAC from the time of sampling to the time of driving is required by statute.
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Case Reports
Cardiac laceration and pericardial tamponade due to cardiopulmonary resuscitation after myocardial infarction.
Complications of cardiopulmonary resuscitation (CPR), such as rib fractures and pneumothorax, are not uncommon. The authors report the case of a 69-year-old woman who underwent surgery for a perforated duodenal ulcer. Eighteen hours postoperatively she sustained a cardiac arrest; vigorous resuscitation efforts, using advanced cardiac life-support procedures, failed. ⋯ There was an acute thrombus in the left anterior descending artery. Microscopic examination of the heart showed acute infarction of the left ventricle in the vicinity of the laceration. This case demonstrates that vigorous CPR performed on an acutely infarcted heart can result in lethal cardiac laceration and tamponade.