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Biomedical subjects

R S COSBY

Publications and source records attributed to R S COSBY.

At least 19 recordsLinked to original sources
PubMed1964

TELEPHONIC ELECTROCARDIOGRAPHY.

Telephonic electrocardiography is a new and useful adjunct to the diagnosis and treatment of cardiovascular disease. It has already demonstrated its great value both in clinical practice and in hospital teaching. It has, however, many other possible roles, for example, in more efficient monitoring after operations on the heart, or in the office monitoring of seriously ill patients with infarction or Adams-Stokes attacks. The availability of increased data in cardiac cases leads automatically to a better understanding of cardiac disease.

Diagnosis↗
PubMed1959

Criteria for mitral valvotomy; roentgen evidence in pulmonary hypertension.

Although catheterization is the most accurate and sometimes the only adequate method of measuring pulmonary hypertension as an indication for mitral valvotomy in rheumatic heart disease, it is so costly and complex that simpler methods are desirable. Clinical evidence of pulmonary hypertension is least accurate; electrocardiography is confirmatory in half of all cases. Roentgenologic findings are more helpful; moderate or severe enlargement in the pulmonary arteries has been associated in 92 per cent of cases with resting systolic pressure of 50 to 90 mm. of mercury in the pulmonary artery. In cases in which there is little or no enlargement, hypertension may still be present and demonstrable only by catheterization. Other roentgen signs noted as helpful are abrupt narrowing of the large branches of the pulmonary artery in the middle and lower lobes, and the septal lines of Kerley.

Blood Pressure↗
PubMed1957

Mitral or aortic commissurotomy; criteria for selection of patients.

IN THE SELECTION OF PATIENTS FOR MITRAL COMMISSUROTOMY, FIVE SEPARATE CATEGORIES ARE TO BE CONSIDERED: (1) true mitral block with small heart and high pulmonary artery pressure, (2) mitral stenosis without mitral block, (3) mitral stenosis with subacute carditis, (4) mitral stenosis with marked cardiac hypertrophy, and (5) mitral stenosis with embolism. Surgical results are good to excellent provided adequate preoperative evaluation has eliminated the groups with subacute carditis, and those without mitral block. Cardiac catheterization is a valuable adjunct in difficult problems.

Cardiac Catheterization↗
PubMed1956

Electrocardiograms and vectorelectrocardiograms; an appraisal of their value in subendocardial and in transmural myocardial infarction.

By vector methods quantitative differences can be shown to be present between subendocardial and transmural myocardial infarction. In acute transmural infarction the vector shift occurs later, the degree of shift is greater, the return to normal is later in time and an abnormal vector shift remains more frequently than in subendocardial infarction. In acute anteroseptal transmural infarction the degree of vector shift was closely correlated with the severity of the acute illness.

Electrocardiography↗