PMID: 602154Jan 1, 1977Paper

Atrial (IV) sound in acute myocardial infarct

Vŭtreshni bolesti
K Petrov

Abstract

The rate, site and intensity of the auricle (IV) tone in acute myocardial infarction were studied, through polygraphic records in 140 patients and 36 healthy subjects. A fourfold examination was carried out on 123 patients, a control examination was carried out towards the end of the third month in 31 patients and 17 deceased were examined but mainly once. Auricle tone was recorded in 41.4% of all the patients, equally in both sexes and regardless of the preceding hypertension: it was found, in 50%, with the first examination and in the same per cent it persists at the time of hospital discharge of the patients. The site of IV tone is of 0.155 sec +/- 0.005 from the beginning of P wave and of 0.07 sec +/- 0.002 sec before the I tone, it does not change and is with low intensity. Great significance is attached to it, on the base of this investigation and literature data, for the diagnosis of acute cardiac insufficiency and a wider application is recommended of glycosides treatment.

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