[Isometric load in assessing the severity of coronary insufficiency in heart surgery patients]

The test involving isometric muscular tension has been proved promising for the non-invasive quantitative evaluation of the severity of coronary insufficiency. Fifty-seven males with coronary stenosing atherosclerosis and 24 normal subjects have been studies. It has been shown that the isometric test is the method of choice in angina at rest and of a low effort as well as in labile angina, whereas tests with increasing exercise are more adequate in angina associated with moderate and hard exercise.