Forensic odontological observations in the victims of DANA air crash

Introduction: Forensic odontology or forensic dentistry is that aspect of forensic science that uses the application of dental science for the identification of unknown human remains and bite marks. Deaths resulting from mass disasters such as plane crash or fire incidence have always been given mass burial in Nigeria. This was obviously due to the fact that Forensic Pathologists whose roles involve disaster victim identification were not available at that time. However, in the DANA air crash in Lagos in 2012, the Forensic pathologist and dental teams were invited for the first time to identify the victims. The objectives of this paper are to identify the extent of victims’ identification using Forensic odontology alone and its   combination with DNA analysis. It also presents the pattern of fractures seen in the mandible and maxilla of the victims. Methods: the bodies were dissected using following the standard protocol dissection. Prior to this all the victims had Dental Radiological Examination. The oral cavities were exposed after which the Odontology team was invited for photographing first, followed by dental charting. Fractures of the mandible, maxilla including the anatomical regions were all recorded and photographed. Dental prosthesis, restorations, crowns and bridge and other findings were also noted, recorded and compared with ante mortem records where available. Results: a total of152 bodies were recovered from the crash site while 148 victims were eventually identified through a combination of DNA analysis and forensic odontology.This represented 97.4%.Forensic odontology was the primary identifier in 10%. There were no fingerprinting information in this country at present therefore, it could not be used. A total of 89 (60%) were males while females accounted for 59(40%).This gives a ratio of 1.5:1.Most of the victims were in the age group 30-49years; this  represented 52% of the victims while the least involved age groups were victims above 60 years of age which accounted for only 4.7%. Mandibular fractures were seen in 29 victims, maxilla in 15, combined   mandibullo/maxillary in 15 victims, while 89 victims had nojaw fracture.The most common area of fracture in the mandible was the body which  accounted for 36.4%, closely followed byparasymphysealregion31.9 %,symphyseal22.7% and the angle 9.0%. The most common fracture in the maxillae was palatal split fracture which accounted for 52%, this was followed by pterygoid24%,alveolar 8% and multiple locations 16%. Conclusion: a combination of DNA analysis and forensic odontology was able to identify a total of 148 victims out of 152 representing 97.4%. Forensic odontology was the primary identifier in only 10%. In the latter, poor and lack of dental records were responsible for this very low figure. The most common area of fracture in the mandible was th ebody which accounted for 36.4%, while that of the maxillae was palatal fracture whichaccounted for 52%. Padding of the back of the seats in the aircraft should be canvassed for to provide Cushing effect for passengers

Trends in suicide in Scotland 1981 – 1999: age, method and geography

BACKGROUND: Male suicide rates continued to increase in Scotland when rates in England and Wales declined. Female rates decreased, but at a slower rate than in England and Wales. Previous work has suggested higher than average rates in some rural areas of Scotland. This paper describes trends in suicide and undetermined death in Scotland by age, gender, geographical area and method for 1981 – 1999. METHODS: Deaths from suicide and undetermined cause in Scotland from 1981 – 1999 were identified using the records of the General Registrar Office. The deaths of people not resident in Scotland were excluded from the analysis. Death rates were calculated by area of residence, age group, gender, and method. Standardised Mortality Ratios (SMRs) and 95% confidence intervals were calculated for rates by geographical area. RESULTS: Male rates of death by suicide and undetermined death increased by 35% between 1981 – 1985 and 1996 – 1999. The largest increases were in the youngest age groups. All age female rates decreased by 7% in the same period, although there were increases in younger female age groups. The commonest methods of suicide in men were hanging, self-poisoning and car exhaust fumes. Hanging in males increased by 96.8% from 45 per million to 89 per million, compared to a 30.7% increase for self-poisoning deaths. In females, the commonest method of suicide was self-poisoning. Female hanging death rates increased in the time period. Male SMRs for 1981 – 1999 were significantly elevated in Western Isles (SMR 138, 95% CI 112 – 171), Highland (135, CI 125 – 147), and Greater Glasgow (120, CI 115 – 125). The female SMR was significantly high only in Greater Glasgow (120, CI 112 – 128). CONCLUSION: All age suicide rates increased in men and decreased in women in Scotland in 1981 – 1999. Previous findings of higher than expected male rates in some rural areas were supported. Rates were also high in Greater Glasgow, one of the most deprived areas of Scotland. There were changes in the methods used, with an increase in hanging deaths in men, and a smaller increase in hanging in women. Altered choice of method may have contributed to the increased male deaths

A 10 years autopsy‑based study of maternal mortality in Lagos State University Teaching Hospital, Lagos, Nigeria

Background: Maternal mortality is the death of a woman while pregnant or within 42 days of termination of pregnancy, irrespective of the duration and the site of the pregnancy. Nigeria is among the six countries that record over 50% of all maternal deaths in the world. There are few papers on autopsy based causes of maternal mortality. This paper is to present the causes of maternal mortality that had postmortem done in our center. Materials and Methods: This is a 10‑year retrospective study of all maternal deaths seen in our center from January 01, 2005 to December 31, 2014. Lagos State University Teaching Hospital is the only state‑owned tertiary center and the main referral center in Lagos State. Autopsy records are taken from the death register and other information were extracted from the postmortem reports.Results: Most maternal deaths 98/328 (29.9%) were seen in the age group 26–30 years which was followed by 31–35 years (24.7%). Postpartum hemorrhage was the most common cause of death followed by eclampsia. Direct causes accounted for 60% of maternal deaths with hemorrhage as the most common while cardiovascular related diseases are the most common indirect cause of death.Conclusion: The leading causes of death in this study, hemorrhage, cardiovascular disease and eclampsia are highly avoidable and treatable. We recommend that thorough cardiovascular management should be instituted during antenatal care, and the government should focus more on an emergency response such as availability of adequate blood and blood products in the hospitals.Key words: Autopsy, eclampsia, hemorrhage, maternal mortalit