PubMed Health⌕ Search

Biomedical subjects

F P Ellis

Publications and source records attributed to F P Ellis.

18 recordsLinked to original sources
PubMed1976

Heat illness. I. Epidemiology.

Reliable information on the epidemiology of heat illness has come, until recently, mainly from the armed forces and, to a lesser extent, from some industries and civil communities. Data from the records of the British Army, Royal Navy, Royal Air Force, Indian Armed Forces, U.S. Army and forces engaged in the Arab-Israeli wars, from the South African gold mining corporations and Persian Gulf oil tankers, and from civilian communities, mainly in the U.S.A., are reviewed and discussed with particular reference to the classification of heat illness and definition of the terms used, and the effects on acclimatized and non-acclimatized personnel and on other sections of the civilian communities most at risk, i.e. the old and very young. This section concludes with an outline of the classification of acute heat illnesses from 1899 to the eighth revision of the WHO International Classification of Diseases in 1967.

Acclimatization↗
PubMed1976

Heat illness. II. Pathogenesis.

The effects of elevated temperatures and the time-temperature combinations for irreversible damage are outlined. Coagulation abnormalities and the effects on the kidney, liver, heart, brain and serum enzymes, the role of electrolytes and water, including salt deficiency and the controversial question of salt supplements, potassium deficiency, changes in other electrolytes and sweat solutes, and rhabdomyolysis (including a discussion of experimental work on dogs) are reviewed. The section ends with a discussion of the effects of drugs and an account of a recent fatal case of heat stroke which may have been triggered by chlorpromazine therapy.

Adolescent↗
PubMed1976

Heat illness. III. Acclimatization.

In this third paper on heat illness, the position of acclimatization in prevention of heat illness is reviewed. Both short and long-term acclimatization are considered, the former in more detail with discussion of present knowledge of the differences arising from artificial and natural acclimatization, the effects of training, water intake and increasing salt intake, and climatic chamber and vapour-barrier suit acclimatization. The possibility of the development of a safe drug to accelerate acclimatization is considered remote. The effects of age and acclimatization in the healthy and unhealthy elderly and the very young are reviewed briefly as is also the possibility that air conditioning may have an adverse effect on acclimatization.

Acclimatization↗
PubMed1976

Sweat responses in the aged.

The sweating responses to thermal stimulation and to the intradermal injection of acetyl choline or methacholine were measured in 28 men and 18 women aged 70 and over and were compared with the responses in young control subjects of both sexes. There was found to be a marked reduction in the sweating activity of the majority of aged men in comparison with the younger age groups and the body temperature threshold for the onset of sweating was increased. The reduced response and elevated threshold were even more pronounced in aged females. There is considerable variability in response in different subjects and at different bodily sites. Impairment of thermoregulatory function due to diminished or absent sweating is thought to be one of the factors responsible for increased mortality in the elderly population during heat-waves.

Acetylcholine↗