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Biomedical subjects

I R Hill

Publications and source records attributed to I R Hill.

17 recordsLinked to original sources
PubMed1990

An analysis of factors impeding passenger escape from aircraft fires.

The aviation world has long recognised that fires in aircraft are potentially very dangerous, being the cause of considerable mortality and morbidity even in otherwise survivable accidents. The evidence accumulated in the British Airtours Boeing 737 accident at Manchester International Airport on 22 August 1985, and the information acquired as a result of this investigation, reinforce the long held view that protection for passengers is needed. Heat, smoke, and toxic fumes can incapacitate people very rapidly. The time it took for people to die cannot be accurately assessed, but it is likely that all died within 4.5 min of the emergency being declared and probably within 2 min of smoke and flames entering the fuselage. Thus, it is obvious that new measures will have to be taken if lives are to be saved in future events of this nature.

Aircraft↗
PubMed1989

Angiographic coronary morphology in postinfarction angina.

To investigate the pathophysiologic relevance of angiographically irregular coronary stenoses in postinfarction angina (PIA), we analyzed the clinical course and coronary angiograms of 73 patients studied within 30 days of infarction. Coronary lesions were classified as smooth or irregular. Thirty-six patients had PIA (Group 1) and 37 had an uncomplicated course (Group 2). Irregular lesion(s) in patent infarct-related arteries were found in 77% of Group 1 vs. 24% of Group 2 patients (P less than 0.005). Irregular lesion(s) in any coronary artery were found in 58% of Group 1 versus 19% of Group 2 patients (P less than 0.002). Other univariate predictors of PIA included older age, hypertension, angina before myocardial infarct, lower peak creatine kinase, three-vessel disease, and higher modified Gensini score. Multivariate analysis ranked lesion irregularity as the strongest predictor of PIA. Our data suggests that ruptured atherosclerotic plaques may be important in the pathogenesis of PIA. It is possible that lesion irregularity is associated with an active process and/or a residual thrombus, which may be responsible for postinfarction angina.

Angina Pectoris↗
PubMed1989

Incapacitation and fires.

Traditionally quoted levels of the products of combustion are too high to account for all the problems of incapacitation and death in fires. Because people may not die instantly in a fire, they can continue to inhale toxic gases after collapse. Collapse may occur very quickly. Experience drawn from analysing the effects of the Manchester Boeing 737 accident and a building fire are used to debate this issue.

Carboxyhemoglobin↗
PubMed1989

Suppurative pericarditis due to Angelchik prosthesis.

Hiatus hernia is a common condition and while medical treatment is often sufficient, in some cases surgery may be necessary. Although there are a number of surgical treatments available, none has been totally successful. We report a case in which use of the Angelchik prosthesis proved fatal.

Aged↗
PubMed1989

Fires.

Explore the source record for details and available documents.

Aged↗
PubMed1989

Mechanism of injury in aircraft accidents--a theoretical approach.

The forensic principles for the examination of wounds are well known (1, 15), and many authors have written at length about the way in which injuries can be classified and how this can be related to their cause. Incised wounds inflicted by knives, and stellate, bursting-type injuries due to blunt objects for example, are commonplace in any forensic practice. Thankfully, although there has been a recent upsurge, aircraft accidents are not common, and so it is conceivable that few pathologists will be called upon to investigate them. Nevertheless, because of the diagnostic importance of the findings, in the context of air safety, pathologists should be aware of the major potential findings. The reasons why aircraft accidents are investigated with greater thoroughness than road traffic accidents, for example, are based upon the early recognition of hazards thought to be attributable to flight. Although many of the early fears were based more upon possibilities than on probabilities, they have left us with a legacy of a comprehensive investigating system. This has had, in turn, its effects in improving flight safety. This paper looks at the basis for this, as illustrated by the mechanism of the injury involved.

Accidents, Aviation↗
PubMed1977

Joint Committee on Aviation Pathology: XII. Sarcoidosis: a review of some features of importance in aviation medicine.

Sarcoidosis is defined in terms of its histology and natural history. Emphasis is placed upon its insidious nature and potentially pronounced pathophysiological effects. The use of lung function studies as an index of disability in the three described phases is discussed. Though we have only found the disease coincidentally in aircraft accidents, stress is placed upon the need for careful monitoring of affected aircrew and the necessity for respiratory function tests.

Adult↗