Journal of cardiography
-
Journal of cardiography · Sep 1983
[Pulsed Doppler echocardiographic assessment of diastolic left ventricular hemodynamics in hypertrophic cardiomyopathy: relationship between the mode of left ventricular filling and the distribution of left ventricular hypertrophy].
In order to clarify left ventricular relaxation and filling in different types of hypertrophic cardiomyopathy (HCM), velocity patterns of blood flow at the inflow tract of the left ventricle (LV) were recorded by pulsed Doppler echocardiography and compared with those of normal subjects (26 cases). Forty-one patients with HCM were classified into the following 4 groups according to the distribution of LV hypertrophy and the evidence of cavity obstruction of the LV; with asymmetric septal hypertrophy (ASH: 15 patients), apical hypertrophy (APH: 10), diffuse hypertrophy ( DIH : five) and obstruction of the LV cavity (HOCM: 11). The HOCM group consisted of five cases of ASH type and six of APH or DIH type. ⋯ Peak LV filling rate was markedly decreased in the ASH, APH and HOCM groups compared with that of the normal subjects. There was a significant negative correlation between peak LV filling rate and DT (r = -0.49, p less than 0.01). In conclusion, the mode of LV filling in HCM showed various patterns according to the location of ventricular hypertrophy and the presence of cavity obstruction of the LV.(ABSTRACT TRUNCATED AT 400 WORDS)
-
Journal of cardiography · Sep 1981
[Two-dimensional echocardiographic approach to the localization of myocardial infarction: echocardiographic, electrocardiographic, and coronary arteriographic correlations (author's transl)].
Location of infarct lesions (IL) demonstrated by two-dimensional echocardiography (2DE) was correlated with electrocardiographic patterns of myocardial infarction and with the sites of obstructive lesions in the individual coronary arteries. The left ventricular wall was displayed by phased-array 2DE in 47 patients with healed myocardial infarction, 29 of whom underwent coronary arteriography. Segmental analysis of IL was performed on 14 segments, 10 of which were obtained by the parasternal short-axis recordings at the mitral (basal) and papillary muscle (mid) levels (each level containing the anterior septum, anterior wall, lateral wall, posterior wall, and posterior septum). ⋯ In contrast, 5 patients with infero-posterior infarction (Q in II, III, aVF + R in V1) and 6 patients with posterior infarction (R in V1) had IL in the mid lateral as well as the mid posterior wall without an involvement of the posterior septum. Coronary arteriography revealed that all of the 10 patients with inferior infarction had a stenosis in the right coronary artery, whereas 6 patients with infero-posterior or posterior infarction invariably had a stenosis in the left circumflex coronary artery. It was concluded that 2DE provides a reliable method for detecting IL and anatomic location of myocardial infarction reflecting a specific coronary artery disease.