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Br Heart J
November 1995
Cardiac Department, Royal Brompton Hospital, London.
Objective: To define patients with left atrial mechanical failure and identify its echocardiographic, physiological, and clinical associations.
Design: Prospective study with cross sectionally guided M mode and Doppler echocardiograms, and with apexcardiograms, electrocardiograms, and phonocardiograms.
Setting: Tertiary cardiac referral centre.
Br Heart J
October 1995
Cardiac Department, Royal Brompton Hospital, London.
Objective: To assess the effect of right atrial appendage pacing on atrial electromechanical interrelations in patients with DDD pacemakers.
Design: Prospective study by M mode echocardiogram, Doppler echocardiogram, and apexcardiogram, along with electrocardiogram and phonocardiogram.
Setting: Tertiary cardiac referral centre.
Kokyu To Junkan
February 1993
Division of Cardiovascular Medicine, Seikeikai Hospital.
It is well known that discrepancies between mean pulmonary capillary wedge pressure (man-PCWP) and left ventricular end-diastolic pressure (LVEDP) exist in the pathological heart with sinus rhythm. We discussed the mechanism of these discrepancies in the aspect of increased LV end-diastolic stiffness. Fifty-two patients observed in this study included 23 with old myocardial infarction (OMI), 4 with hypertrophic cardiomyopathy and 9 with hypertensive heart disease (LVH group), 6 with dilated cardiomyopathy (DCM), and 10 normal subjects (N).
View Article and Find Full Text PDFActa Cardiol
February 1994
2nd Department of Internal Medicine, Aristotelian University, Thessaloniki, Greece.
Unlabelled: The aim of the study was to investigate whether the aetiology of left ventricular hypertrophy (LVH) is related with distinct abnormalities of left ventricular diastolic performance.
Methods: thirty patients with mild to moderate essential hypertension (15 without echocardiographic evidence of LVH and 15 with LVH) and 15 athletes with LVH were studied. Control group comprised 10 normotensive subjects.
The salient phonoechocardiographic features of patients having hypertrophic cardiomyopathy (HCM) with or without left ventricular outflow tract (LVOT) gradients are reviewed. Intracardiac sound and pressure recordings from high fidelity catheter-tipped micromanometers have documented that the precordial murmur is the summation of both the systolic ejection murmur (SEM) arising from the LVOT, as well as the mitral regurgitant murmur recorded from the left atrium. The intensity of the precordial murmur varies directly with the LVOT gradient, which in turn is determined primarily by the contractility and loading conditions of the left ventricle.
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