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PubMed1967

Ossification in the sternum as a means of assessing skeletal age.

The centres of ossification in the sternum were investigated to determine whether there was any correlation between ossification in the sternum and chronological age. But this proved to be of no value in assessing skeletal age, although it may be of use in assessing skeletal maturity for pathological or forensic purposes.

Age Determination by Skeleton↗
PubMed2003

Adverse effects associated with physical restraint.

OBJECTIVE: Restraint use is not monitored in the US, and only institutions that choose to do so collect statistics. In 1999, investigative journalists reported lethal consequences proximal to restraint use, making it a life-and-death matter that demands attention from professionals. This paper reviews the literature concerning actual and potential causes of deaths proximal to the use of physical restraint. METHOD: Searching the electronic databases Medline, Cinahl, and PsycINFO, we reviewed the areas of forensics and pathology, nursing, cardiology, immunology, psychology, neurosciences, psychiatry, emergency medicine, and sports medicine. CONCLUSIONS: Research is needed to provide clinicians with data on the risk factors and adverse effects associated with restraint use, as well as data on procedures that will lead to reduced use. Research is needed to determine what individual risk factors and combinations thereof contribute to injury and death.

Asphyxia↗
PubMed2006

Alcohol distribution in different postmortem body fluids.

AIMS: The determination of postmortem ethanol is one of the most frequently requested analyses in forensic toxicology and of extreme importance, especially when the concentration is found to be above the legal level for intoxication at one sampling site and below that level at another sampling site. Because of the unavailability of blood samples for toxicological analysis or even contaminated samples, there is an enormous effort to find alternative sampling sites, such as vitreous humor for ethanol analysis. The main purpose of this study was to establish correlations between urine and blood alcohol concentrations collected from different sites and vitreous humor. METHODS: Ethanol concentrations were determined in specimens of heart, subclavian and femoral blood, urine and vitreous humor, collected from 21 cadavers who were victims of different causes of death. Determinations of ethanol were performed in duplicate using capillary gas chromatography/flame ionization detector and headspace techniques. RESULTS: Statistical analysis of the results indicated that there were no significant differences among urine and blood samples collected from different sites compared to vitreous humor. Regarding vitreous humor ethanol concentration, Pearson's correlation coefficient was 0.97 for femoral blood and urine, 0.96 for heart blood and 0.94 for subclavian blood. The results demonstrated that all the fluids tested against vitreous humor significantly correlated with P (associated probability for the used correlation tests) <0.05. CONCLUSIONS: Vitreous humor can be considered as an alternative sample to urine and blood specimens.

Body Fluids↗
PubMed2005

An unusual case of suicide by broken glass pierced through the buttocks: a case report.

Suicidal stabbing to the back and buttocks is very unusual due to the limited accessibility of that region to the victim's hand. The following case report describes a 38-year-old man, known for depression and suicidal ideation, who was found deceased in his home after tearing his right internal iliac artery by stabbing himself through the buttock with a piece of glass from a broken beer bottle. The literature on suicidal stabbing, particularly focusing on the type of weapon and localisation of wounds, is reviewed.

Adult↗
PubMed2005

Arrhythmogenic right ventricular cardiomyopathy/dysplasia mimicking rape homicide: a case report.

Arrhythmogenic right ventricular cardiomyopathy (ARVC), also known as arrhythmogenic right ventricular dysplasia, is a known cause of sudden unexplained death in young, otherwise healthy adults. In the forensic setting, several cases of fatal ARVC have been reported, mostly occurring during physical exercise. However, a very few cases present where the death scene is mistaken for a homicide. We report here the case of a 23-year-old woman, found dead, lying in the snow on an isolated property. The woman's genitals were exposed, with her trousers down over her thighs. Rape homicide was strongly suspected, but autopsy findings proved otherwise.

Adult↗
PubMed2005

An autopsy case of sudden death in a boy with primary pulmonary hypertension: a case report.

We report a rare autopsy case of sudden death due to primary pulmonary hypertension. A seven-year-old boy, who had been diagnosed with primary pulmonary hypertension at the age of four years, died suddenly. Forensic autopsy and histopathologic examination revealed extensive obstruction of small muscular pulmonary arteries by plexiform lesions and concentric intimal thickenings, compatible with primary pulmonary hypertension. We concluded that plexiform lesions of pulmonary arteries produced right ventricular hypertrophy and dilatation, decreased the preload of the left ventricle and subsequently led to biventricular failure. This autopsy and histopathologic examination suggested a possible pathophysiologic mechanism of sudden death due to primary pulmonary hypertension in a child.

Autopsy↗
PubMed2006

Diabetic ketoacidosis--a possible complicating factor in deaths associated with drug overdose: two case reports.

Two cases are described where diabetic ketoacidosis was found in conjunction with significant levels of prescription drugs. Case 1: A 45-year-old woman with a history of insulin-dependent diabetes mellitus was found to have Armanni-Ebstein nephropathy characteristic of hyperglycaemia with a vitreous humour glucose level of 63.1 mmol/L and a beta-hydroxybutyrate level of 14.25 mmol/L. Ancillary toxicological evaluation revealed a lethal level of sertraline (2.5 mg/L), with an elevated level of methadone (0.23mg/L). Death was due to diabetic ketoacidosis complicating mixed drug toxicity. Case 2: A 27-year-old man with a history of insulin-dependent diabetes mellitus was found to have Armanni-Ebstein nephropathy with a vitreous humour glucose level of 51.7 mmol/L and a beta-hydroxybutyrate level of 18.6mmol/L. Ancillary toxicological evaluation revealed a potentially lethal level of methadone of 0.39mg/L. Death was attributed to diabetic ketoacidosis complicating methadone toxicity. These cases demonstrate a situation where drug toxicity led to diabetic ketoacidosis resulting in death most likely from a combination of factors. Measuring vitreous humour glucose and beta-hydroxybutyrate levels is important in individuals with histories, or scene evidence, of insulin-dependent diabetes mellitus, in addition to toxicological screening when there is evidence of possible drug taking. It appears that drug intoxication in both cases had impaired the ability to administer insulin, resulting in the development over time of diabetic ketoacidotic states. Lethal mechanisms were, therefore, more complex than simple drug toxicity or diabetic ketoacidosis in isolation.

Adult↗
PubMed2006

Using the inflammatory cell infiltrate to estimate the age of human burn wounds: A review and immunohistochemical study.

UNLABELLED: The burn wound healing process, which is reviewed in this paper, has features that differ from the healing of incised cutaneous wounds. This study used immunohistochemical staining and cell counting to examine the inflammatory cell response in biopsy samples of burn wounds from live human subjects obtained at six hours until 23 days after injury in order to determine how the age of a burn could be estimated. Acute inflammatory cells predominated in samples taken six hours to two days after injury. However, neutrophils were often minimal in early samples or could be present late. Elevated numbers of macrophages tended to be encountered from days 2 to 20, but it was not uncommon to observe a minimal or absent macrophage response. Unexpectedly, there was no trend in the number of lymphocytes. A small study was also made of burn wound samples that had been obtained at post-mortem examination of subjects that died in a fire or up to 77 days after injury from fire. This revealed a similar trend of neutrophil and macrophage accumulation. Additionally, it appeared that an increase in the number of lymphocytes occurred late, from 35 days. IN CONCLUSION: If neutrophils predominate, the wound is probably less than a couple of days old. When macrophages are abundant the wound is probably a few days to weeks old. However, as expected from the review of the literature, the inflammatory cell infiltrate may be low or absent in burn wounds, which can render determination of the age of burn wounds difficult.

Adolescent↗
PubMed2006

The international criminal tribunal for the former Yugoslavia (ICTY) and the forensic pathologist: ethical considerations.

Since 1991, war crimes in the former Yugoslavia have been the subject of several international medico-legal investigations of mass graves within the framework of inquiries led by the International Criminal Tribunal for the former Yugoslavia (ICTY). Forensic pathologists involved in the ICTY missions could be subjected to ethical tensions due to the difficulties of the missions, the emergent conflicts between forensic scientists of the investigating teams and the original nature of the ICTY proceedings. In order to study the nature of such ethical tensions, we sent a questionnaire to 65 forensic pathologists who have been involved in the ICTY missions. The rate of response was 38%. The majority of forensic pathologists questioned (n=18) did not know how the medico-legal data was exploited by the ICTY. Three of them have been subjected to pressures. Three of them were aware of mass grave sites knowingly not investigated by the ICTY. Fifteen considered that the ICTY respected the elementary rules of the law and four of them questioned the impartiality of the justice led by the ICTY. Two conflicting types of ethics can be drawn from these results: conviction ethics, which are shared by most of the forensic pathologists questioned, and responsibility ethics. In the former, the forensic pathologist completely agrees with the need for an international war crimes tribunal, even if such justice can be challenged regarding the respect of human rights and impartiality. In the latter, he or she needs to conduct him or herself in ways that do not infringe impartiality. As medical deontology duty requires impartiality ethics, discursive ethics are needed to ease ethical tensions and to suggest ethical guidelines. Alternatives to international justice, through a truth and reconciliation commission and by way of humanitarian missions combining victims' identification with forensic investigations for historical purposes, could be considered.

Forensic Pathology↗
PubMed2004

Acute forensic medical procedures used following a sexual assault among treatment-seeking women.

Despite the negative physical and mental health outcomes of sexual assault, a minority of sexually assaulted women seek immediate post-assault medical and legal services. This study identified the number and types of acute forensic medical procedures used by women presenting at a hospital-based urgent care centre between 1997 and 2001 within 72 hours following a reported sexual assault. The study also examined assault and non-assault factors associated with the use of procedures. It was hypothesized that assault characteristics resembling the stereotype of rape would be associated with the use of more procedures. The multiple regression indicated that injury severity, coercion severity, homelessness, and delay in presentation were significantly associated with the number of procedures received. Findings provide partial support for the hypothesis that post-assault procedures would be associated with the stereotype of rape, and highlight homeless women as a group particularly at risk for not receiving adequate medical treatment following a sexual assault.

Adult↗
PubMed2004

Organism identification using a genome sequence-independent universal microarray probe set.

There has been increasing interest and efforts devoted to developing biosensor technologies for identifying pathogens, particularly in the biothreat area. In this study, a universal set of short 12- and 13-mer oligonucleotide probes was derived independently of a priori genomic sequence information and used to generate unique species-dependent genomic hybridization signatures. The probe set sequences were algorithmically generated to be maximally distant in sequence space and not dependent on the sequence of any particular genome. The probe set is universally applicable because it is unbiased and independent of hybridization predictions based upon simplified assumptions regarding probe-target duplex formation from linear sequence analysis. Tests were conducted on microarrays containing 14,283 unique probes synthesized using an in situ light-directed synthesis methodology. The genomic DNA hybridization intensity patterns reproducibly differentiated various organisms (Bacillus subtilis, Yersinia pestis, Streptococcus pneumonia, Bacillus anthracis, and Homo sapiens), including the correct identification of a blinded "unknown" sample. Applications of this method include not only pathological and forensic genome identification in medicine and basic science, but also potentially a novel method for the discovery of unknown targets and associations inherent in dynamic nucleic acid populations such as represented by differential gene expression.

Bacillus anthracis↗