Precordial Low-frequency Vibrocardiography

Precordial pain.

Quantitation of Precordial Movement

Precordial displacement records of 39 patients with mitral regurgitation have been analyzed using a new method of quantitation. Three groups of patients were studied, and the data from each group have been compared in a number of different ways to those obtained from a control group. The optimal method of discrimination is a graphic representation involving the two variables of the height of th...

Quantitation of Precordial Movement

A method has been devised for calibrating and measuring aspects of displacement records of cardiac movement. Forty-five normal subjects have been studied using this method, and a normal range has been calculated for the heights of the a wave, systolic outward movement, rapid-filling wave, and the ratio of rapid-filling wave to duration. The consistency of the results obtained and factors produc...

Precordial ST-Segment Mapping

Precordial ST-segment mapping was applied serially in the coronary care unit for the study of 46 patients with myocardial infarction (MI), using a 49-lead system. Data from the maps were compared with clinical status of patients, conventional ECGs obtained simultaneously, and serum enzyme levels. Stability of the maps over a one hour period was noted in the early phase of admission. However, a ...

Precordial catch syndrome.

Seventeen cases of precordial "catch" are reported. The children varied in age from 8 to 16 years. The characteristics of this painful condition are discussed; in particular, the diagnostic indication of the site of the pain over an intercostal space, with the finger tip, is stressed. Anxiety in the child, or the parents, in relation to the complaint is discussed. Several methods of treatment a...