Patterns of pulmonary venous and transmitral flow velocity in patients with hypertrophic cardiomyopathy

Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography
G Keren, B J Maron

Abstract

This study determines the characteristics of left atrial filling from the pulmonary veins in 80 patients with hypertrophic cardiomyopathy by transthoracic echocardiography. Patients in sinus rhythm (n = 72) showed a typical triphasic pattern with a systolic phase (J) and diastolic phase (K) and a retrograde surge of flow during atrial contraction. In sinus rhythm, three characteristic patterns of pulmonary venous flow in hypertrophic cardiomyopathy were observed: (1) an increased peak J wave relative to the K wave with J/K ratios greater than 1 (n = 43; 60%), (2) equal peak J and K phases (n = 7; 10%), and (3) decreased J wave relative to K ratios and J/K less than 1 (n = 22; 30%). The J/K ratio correlated inversely with the E/A ratio (r = -0.64; p < 0.01). In eight patients with atrial fibrillation, left atrial filling occurred primarily in diastole (K phase). Combined use of mitral and pulmonary venous flow may be optimal for the noninvasive detection of abnormal left ventricular filling in patients with hypertrophic cardiomyopathy.

References

Nov 1, 1990·Journal of the American College of Cardiology·A L KleinA J Tajik
Jun 1, 1986·Journal of the American College of Cardiology·K TakenakaW L Henry
Dec 1, 1986·Journal of the American College of Cardiology·B J FriedmanA N DeMaria
Mar 1, 1986·Journal of the American College of Cardiology·G KerenT LeJemtel

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Citations

Jan 6, 2000·Journal of Cardiothoracic and Vascular Anesthesia·A MaslowR G Johnson

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