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Biomedical subjects

A Djalaly

Publications and source records attributed to A Djalaly.

5 recordsLinked to original sources
PubMed1983

Abnormal diastolic left ventricular posterior wall motion in left ventricular hypertrophy.

The left ventricular pressure-volume relationship is abnormal in left ventricular hypertrophy (LVH). As a result, the left atrium empties more slowly than normal during the rapid filling phase of diastole, producing a characteristic abnormality of diastolic aortic root motion. In order to determine whether this altered LV filling is accompanied by a derangement of diastolic LV wall motion which might be useful in identifying the presence of altered chamber compliance, the M-mode echocardiograms of 60 patients with LVH secondary to aortic stenosis, hypertrophic subaortic stenosis, or hypertension, and those of 36 normal individuals were evaluated. Patients with LVH demonstrated abnormal LV posterior wall motion manifested by prolonged phases of rapid ventricular filling and atrial contraction (p less than 0.01 and p less than 0.05, respectively). The early diastolic wall motion abnormality can be readily detected by visual inspection of the echocardiogram. These findings support the concept of diastolic dysfunction in LVH and represent another echocardiographic feature of that condition.

Adult↗
PubMed1981

Diastolic aortic root motion in left ventricular hypertrophy.

The echocardiographic motion of the aortic root reflects, in part, left atrial filling and emptying. The echocardiograms of 60 patients with left ventricular hypertrophy (LVH) secondary to aortic stenosis, hypertrophic subaortic stenosis, and hypertension were compared with those of 36 normal subjects to determine whether the alterations of early rapid diastolic filling associated with LvH would alter motion of the posterior aortic root. Patients with LVH had a characteristic echographic pattern of motion of the posterior aortic root manifested by the attenuation of normal abrupt diastolic posterior aortic root motion. The atrial emptying index (AEI), defined as the fraction of passive posterior aortic wall motion occurring in the first third of diastole, was significantly reduced in patients with LVH (p less than 0.001), but did not discriminate among mild, moderate, and marked hypertrophy. The AEI may be useful in the identification of altered left ventricular filling associated with LVH. The changes associated with a decreased AEI are readily appreciated by visual inspection and provide a rapid method of qualitatively assessing left ventricular filling properties.

Adult↗