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Biomedical subjects

G W MANNING

Publications and source records attributed to G W MANNING.

At least 19 recordsLinked to original sources
PubMed1965

THE ELECTROCARDIOGRAM AND ISCHEMIC HEART DISEASE IN AIRCRAFT PILOTS.

A review of the Royal Canadian Air Force electrocardiographic (ECG) program for selection of aircrew and detection of coronary disease in trained aircrew is presented. Twenty reported cases of death due to coronary disease in pilots while at the controls of an aircraft are reviewed. The use of routine electrocardiography in the selection of aircrew has proved to be of considerable value, particularly in view of the high cost of training. The ECG continues to be our most sensitive means of detecting asymptomatic coronary disease in aircrew personnel. It is apparent that from both the military and commercial standpoint the incidence of aircraft accidents due to coronary disease is extremely small. This is due in large part to the careful medical supervision of flying personnel including the routine use of electrocardiography in the assessment of flying fitness of aircrew.

Accidents, Aviation↗
PubMed1964

TELEPHONOCARDIOGRAPHY: THE TRANSMISSION OF ELECTROCARDIOGRAMS BY TELEPHONE.

Transmission of electrocardiograms via long-distance telephone (telephonocardiography) from Wingham to London, Ontario, was carried out over a period of three months, early in 1964. The object of this study was to ascertain whether or not the telephonocardiogram was a practical and reliable method of interpreting such tracings for outlying areas. During this period 102 tracings were recorded on 71 patients. Thirty-one (30%) of the tracings were normal and 71 (70%) abnormal. Analysis of the clinical data revealed that the telephonocardiogram was extremely valuable in five of 71 patients (7%) and was also of considerable value to 11 other patients (16%) in providing immediate diagnosis and thereby indicating definite treatment. The trial also demonstrated that the method was practical, accurate and easy to perform.

Biomedical Research↗
PubMed1962

The Wolff-Parkinson-White pattern in routine electrocardiography.

Fifteen thousand consecutive electrocardiograms on R.C.A.F. aircrew applicants aged 18 to 24 were studied from the standpoint of incidence, clinical findings and follow-up of the WPW pattern discovered because the ECG was taken as part of the selection procedure. Forty-six cases were discovered (0.3%). All were reviewed and passed as clinically fit except for one with asymptomatic rheumatic heart disease. Two others gave a history suggestive of paroxysmal rapid heart action. None of the 43 men on follow-up have developed evidence of arrhythmia. Thirteen of the 46 showed an intermittent pattern initially or on subsequent follow-up. Fifty to 80% of people with the WPW pattern experience tachycardia, according to the literature. The incidence of tachycardia in this study was much lower (2 in 46 or 4.3%). The WPW pattern is not synonymous with the WPW syndrome, and iatrogenic heart disease must be avoided in fit young men in whom the WPW pattern is discovered because of routine electrocardiography.

Electrocardiography↗