[Use of Doppler ultrasonography in the study of arterial pathology].
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Biomedical subjects
Publications and source records attributed to G Hudon.
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A simple device and a nomogram are presented to permit rapid, accurate measurement of structures shown on roentgenograms. The arrangement is designed specifically for measurement of coronary vessels, but it can be adapted to other structures.
Six Canadian medical students record their experience at a summer school of tropical medicine in Haiti, sponsored by the Canadian Association of Medical Students and Internes. The social, economic and medical background is described, including "Voodoo" practices, language and Haitian art. Attention is directed to the occurrence of umbilical tetanus, diarrhea and malnutrition. From even a brief stay in a country such as Haiti one comes to appreciate that a public health program in an underdeveloped nation is not strictly a medical undertaking but must be seen in its social and economic contexts.
Balloon percutaneous transluminal angioplasty (PTA) has been described in 1974 and has since been considerably refined with the improvement of balloon catheters, guide wires and radiology equipment. Laser and other mechanical recanalization devices have not hold to their initial promises. Clinical and angiographic indications for PTA have been better defined over the years, resulting in excellent clinical successes with low morbidity and very low mortality. PTA has become an almost painless procedure and may be done on an outpatient basis. It is considered as the treatment of first choice in suitable patients.
A study on the safety of outpatient angiography and interventional radiology was undertaken. The authors reviewed the medical files of 286 patients and conducted a late telephone inquiry in 249 patients (87%) who underwent these procedures on an outpatient basis : arteriographies (221) or percutaneous transluminal angioplasties (76) and a few intravenous studies (9). The results revealed a high degree of satisfaction from the patients (98%), no major complications and a very low incidence of minor complications (3%).