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Evaluation of left atrial filling using systolic pulmonary venous flow velocity measurements in patients with atrial fibrillation. 1998

T Oki, and T Tabata, and H Yamada, and T Wakatsuki, and K Fukuda, and M Abe, and Y Onose, and A Iuchi, and N Fukuda, and S Ito
Second Department of Internal Medicine, School of Medicine, University of Tokushima, Japan.

BACKGROUND The pattern of pulmonary venous flow velocity is useful for understanding the hemodynamic relationship between the left atrium and left ventricle in patients with a variety of diseases, and the systolic flow wave, in particular, is considered a clinically important parameter that reflects left atrial filling. OBJECTIVE The study was undertaken to determine whether systolic pulmonary venous flow velocity patterns can be used to evaluate left atrial filling in patients with atrial fibrillation. METHODS We performed transesophageal pulsed Doppler echocardiography and cardiac catheterization in 34 patients with chronic atrial fibrillation (10 with hypertrophic cardiomyopathy, 5 with dilated cardiomyopathy, 7 with previous myocardial infarction, and 12 with isolated atrial fibrillation) and 15 normal controls in sinus rhythm. RESULTS Mean pulmonary capillary wedge pressure, V-wave height in the pulmonary capillary wedge pressure curve, and left ventricular end-diastolic pressure were significantly higher in the hypertrophic cardiomyopathy and dilated failing heart (previous myocardial infarction and dilated cardiomyopathy) groups than in the isolated atrial fibrillation and normal groups. The peak velocity and time-velocity integral of the systolic pulmonary venous flow velocity, and percent left atrial emptying fraction were significantly lower in the dilated failing heart group than in the isolated atrial fibrillation, hypertrophic cardiomyopathy, and normal groups. The peak velocity and time-velocity integral of the systolic pulmonary venous flow velocity, percent left atrial emptying fraction, and V-wave height were comparatively constant when the preceding R-R intervals were relatively stable in the isolated atrial fibrillation group and in 4 of the 10 patients with hypertrophic cardiomyopathy. However, changes in these variables correlated with the preceding R-R interval in all patients with dilated failing hearts and in 6 of the 10 patients with hypertrophic cardiomyopathy. CONCLUSIONS Transesophageal pulsed Doppler echocardiographic measurements of systolic pulmonary venous flow velocity are valid indicators of left atrial filling in patients with atrial fibrillation.

UI MeSH Term Description Entries
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D011652 Pulmonary Circulation The circulation of the BLOOD through the LUNGS. Pulmonary Blood Flow,Respiratory Circulation,Circulation, Pulmonary,Circulation, Respiratory,Blood Flow, Pulmonary,Flow, Pulmonary Blood,Pulmonary Blood Flows
D011667 Pulmonary Veins The veins that return the oxygenated blood from the lungs to the left atrium of the heart. Pulmonary Vein,Vein, Pulmonary,Veins, Pulmonary
D001783 Blood Flow Velocity A value equal to the total volume flow divided by the cross-sectional area of the vascular bed. Blood Flow Velocities,Flow Velocities, Blood,Flow Velocity, Blood,Velocities, Blood Flow,Velocity, Blood Flow
D002312 Cardiomyopathy, Hypertrophic A form of CARDIAC MUSCLE disease, characterized by left and/or right ventricular hypertrophy (HYPERTROPHY, LEFT VENTRICULAR; HYPERTROPHY, RIGHT VENTRICULAR), frequent asymmetrical involvement of the HEART SEPTUM, and normal or reduced left ventricular volume. Risk factors include HYPERTENSION; AORTIC STENOSIS; and gene MUTATION; (FAMILIAL HYPERTROPHIC CARDIOMYOPATHY). Cardiomyopathy, Hypertrophic Obstructive,Cardiomyopathies, Hypertrophic,Cardiomyopathies, Hypertrophic Obstructive,Hypertrophic Cardiomyopathies,Hypertrophic Cardiomyopathy,Hypertrophic Obstructive Cardiomyopathies,Hypertrophic Obstructive Cardiomyopathy,Obstructive Cardiomyopathies, Hypertrophic,Obstructive Cardiomyopathy, Hypertrophic
D004452 Echocardiography Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues. The standard approach is transthoracic. Echocardiography, Contrast,Echocardiography, Cross-Sectional,Echocardiography, M-Mode,Echocardiography, Transthoracic,Echocardiography, Two-Dimensional,Transthoracic Echocardiography,2-D Echocardiography,2D Echocardiography,Contrast Echocardiography,Cross-Sectional Echocardiography,Echocardiography, 2-D,Echocardiography, 2D,M-Mode Echocardiography,Two-Dimensional Echocardiography,2 D Echocardiography,Cross Sectional Echocardiography,Echocardiography, 2 D,Echocardiography, Cross Sectional,Echocardiography, M Mode,Echocardiography, Two Dimensional,M Mode Echocardiography,Two Dimensional Echocardiography
D006328 Cardiac Catheterization Procedures in which placement of CARDIAC CATHETERS is performed for therapeutic or diagnostic procedures. Catheterization, Cardiac,Catheterization, Heart,Heart Catheterization,Cardiac Catheterizations,Catheterizations, Cardiac,Catheterizations, Heart,Heart Catheterizations
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D001281 Atrial Fibrillation Abnormal cardiac rhythm that is characterized by rapid, uncoordinated firing of electrical impulses in the upper chambers of the heart (HEART ATRIA). In such case, blood cannot be effectively pumped into the lower chambers of the heart (HEART VENTRICLES). It is caused by abnormal impulse generation. Auricular Fibrillation,Familial Atrial Fibrillation,Paroxysmal Atrial Fibrillation,Persistent Atrial Fibrillation,Atrial Fibrillation, Familial,Atrial Fibrillation, Paroxysmal,Atrial Fibrillation, Persistent,Atrial Fibrillations,Atrial Fibrillations, Familial,Atrial Fibrillations, Paroxysmal,Atrial Fibrillations, Persistent,Auricular Fibrillations,Familial Atrial Fibrillations,Fibrillation, Atrial,Fibrillation, Auricular,Fibrillation, Familial Atrial,Fibrillation, Paroxysmal Atrial,Fibrillation, Persistent Atrial,Fibrillations, Atrial,Fibrillations, Auricular,Fibrillations, Familial Atrial,Fibrillations, Paroxysmal Atrial,Fibrillations, Persistent Atrial,Paroxysmal Atrial Fibrillations,Persistent Atrial Fibrillations

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