Central African Journal of Medicine - Volume 20, Issue 7, July 1974

Systolic time intervals were recorded at rest from 182 African and 197 European men. The ratio: pre-ejection period to left ventricular ejection time (PEP /L VET), which can be related to left ventricular contractility and ejection fraction, was found to be significantly (P < 0,0001) lower in 160 male African office and factory workers than in age-matched Europeans. This difference is environmental rather than genetic, because male African students who have adopted a Western style of life resembled Europeans, and showed the same differences from age-matched African workers.

The possible inhalation hazards associated with the manufacture of silicon alloys are descriptionbed, and details of suggestive cases of pulmonary disease in a foundry are recorded.

The present paper descriptionbes two cases of imported Loiasis in Rhodesia and discusses the importance of recognising imported diseases in the tropics and sub-tropics.

1. The possession of an E.C.G. machine adds great interest and a new dimension to general practice and provides a service which the sophisticated patient expects and is entitled to. 2. In a group practice of four general practitioners 209 E.C.G.'s were done on 153 patients in one year.