[Stetho-acoustic cardiomyopathy--characteristics in cardiomyopathies studied by echocardiography].

In 4 different forms of cardiomyopathy which had been diagnosed echocardiographically we performed stethoacoustic investigations. Hereby each of these 4 different forms of cardiomyopathy developed a specific noise. In the patients with hypertrophic non-obstructive cardiomyopathy we found a mesosystolic to protomesosystolic interval murmur in 2 L 1 and called it hypertrophic murmur. In the apical hypertrophic cardiomyopathy we found a mesosystolic murmur above the apex and called it apical hypertrophic murmur. In the obstructive cardiomyopathy (hypertrophic obstructive cardiomyopathy) we found a mesotelesystolic murmur in 4 L 3 and called it obstruction murmur. In the dilatative cardiomyopathy (COCM) existed an immediate systolic murmur above the apex and we called it dilatation murmur.