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Auricle (IV) tone, a low-intensity heart sound, is present in 41.4% of acute myocardial infarction patients. This finding aids in diagnosing acute cardiac insufficiency and suggests glycoside treatment.
Area of Science:
- Cardiology
- Internal Medicine
Background:
- Acute myocardial infarction (AMI) can lead to cardiac insufficiency.
- Understanding cardiac sounds is crucial for diagnosis.
Purpose of the Study:
- To investigate the characteristics of the auricle (IV) tone in patients with acute myocardial infarction.
- To assess the diagnostic significance of the IV tone for acute cardiac insufficiency.
Main Methods:
- Polygraphic recordings were used to study 140 AMI patients and 36 healthy controls.
- Multiple examinations were conducted on subsets of patients, including follow-ups and post-mortem examinations.
Main Results:
- Auricle (IV) tone was detected in 41.4% of AMI patients, irrespective of sex or hypertension history.
- The tone was present in 50% of patients during the initial examination and persisted until hospital discharge.
- The IV tone's timing (0.155s after P wave) and low intensity remained consistent.
Conclusions:
- The auricle (IV) tone holds diagnostic significance for acute cardiac insufficiency in AMI.
- Wider application of glycoside treatment is recommended based on these findings.
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.