BIOMAT Database Logo BIOMAT Database Logo

Evaluation of left atrial appendage function by measurement of changes in flow velocity patterns after electrical cardioversion in patients with isolated atrial fibrillation. 1997

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

We investigated temporary changes in left atrial appendage (LAA) flow velocity patterns in patients undergoing electrical cardioversion for chronic isolated atrial fibrillation, and evaluated the role of active LAA contraction in directing blood flow to the left atrial main chamber and left ventricle. The study consisted of 26 patients with chronic isolated atrial fibrillation treated with electrical cardioversion and 20 normal controls in sinus rhythm. Using transthoracic and transesophageal Doppler echocardiography, we recorded transmitral, pulmonary venous, and LAA flow velocity patterns before, 24 hours, and 1 week after cardioversion in all subjects. In the 15 patients who underwent successful cardioversion, the maximal LAA area 24 hours after cardioversion was smaller than the area before cardioversion, whereas LAA ejection fraction during atrial systole and peak atrial systolic emptying velocity of the LAA flow were lower 24 hours after cardioversion than those in the control group. One week after cardioversion, maximal LAA area and LAA peak atrial systolic emptying velocity were restored to levels approximately equivalent to those in the control group, although LAA ejection fraction was lower than in the control group. Maximal LAA area and LAA peak atrial systolic emptying velocity correlated negatively and positively with LAA ejection fraction, respectively, 24 hours and 1 week after cardioversion. These results suggest that LAA and the left atrial main chamber show stunning 24 hours after cardioversion, and the atrial systolic emptying wave of LAA flow is generated by active LAA contraction.

UI MeSH Term Description Entries
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D008943 Mitral Valve The valve between the left atrium and left ventricle of the heart. Bicuspid Valve,Bicuspid Valves,Mitral Valves,Valve, Bicuspid,Valve, Mitral,Valves, Bicuspid,Valves, Mitral
D009200 Myocardial Contraction Contractile activity of the MYOCARDIUM. Heart Contractility,Inotropism, Cardiac,Cardiac Inotropism,Cardiac Inotropisms,Contractilities, Heart,Contractility, Heart,Contraction, Myocardial,Contractions, Myocardial,Heart Contractilities,Inotropisms, Cardiac,Myocardial Contractions
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
D002302 Cardiac Output The volume of BLOOD passing through the HEART per unit of time. It is usually expressed as liters (volume) per minute so as not to be confused with STROKE VOLUME (volume per beat). Cardiac Outputs,Output, Cardiac,Outputs, Cardiac
D003326 Coronary Circulation The circulation of blood through the CORONARY VESSELS of the HEART. Circulation, Coronary
D004554 Electric Countershock An electrical current applied to the HEART to terminate a CARDIAC ARRHYTHMIA. Cardiac Electroversion,Cardioversion,Defibrillation, Electric,Electroversion, Cardiac,Electrical Cardioversion,Electroversion Therapy,Therapy, Electroversion,Cardiac Electroversions,Cardioversion, Electrical,Cardioversions,Cardioversions, Electrical,Countershock, Electric,Countershocks, Electric,Defibrillations, Electric,Electric Countershocks,Electric Defibrillation,Electric Defibrillations,Electrical Cardioversions,Electroversion Therapies,Electroversions, Cardiac,Therapies, Electroversion
D005069 Evaluation Studies as Topic Works about studies that determine the effectiveness or value of processes, personnel, and equipment, or the material on conducting such studies. Critique,Evaluation Indexes,Evaluation Methodology,Evaluation Report,Evaluation Research,Methodology, Evaluation,Pre-Post Tests,Qualitative Evaluation,Quantitative Evaluation,Theoretical Effectiveness,Use-Effectiveness,Critiques,Effectiveness, Theoretical,Evaluation Methodologies,Evaluation Reports,Evaluation, Qualitative,Evaluation, Quantitative,Evaluations, Qualitative,Evaluations, Quantitative,Indexes, Evaluation,Methodologies, Evaluation,Pre Post Tests,Pre-Post Test,Qualitative Evaluations,Quantitative Evaluations,Report, Evaluation,Reports, Evaluation,Research, Evaluation,Test, Pre-Post,Tests, Pre-Post,Use Effectiveness

Related Publications

T Tabata, and T Oki, and A Iuchi, and H Yamada, and K Manabe, and K Fukuda, and M Abe, and N Fukuda, and S Ito
Left atrial appendage-flow velocity predicts cardioversion success in atrial fibrillation.
March 2006, The Tohoku journal of experimental medicine,
T Tabata, and T Oki, and A Iuchi, and H Yamada, and K Manabe, and K Fukuda, and M Abe, and N Fukuda, and S Ito
Predictors of left atrial appendage stunning after electrical cardioversion in patients with atrial fibrillation.
September 2019, The international journal of cardiovascular imaging,
T Tabata, and T Oki, and A Iuchi, and H Yamada, and K Manabe, and K Fukuda, and M Abe, and N Fukuda, and S Ito
Prediction of outcome of electrical cardioversion by left atrial appendage flow velocities in atrial fibrillation.
January 1997, Japanese circulation journal,
T Tabata, and T Oki, and A Iuchi, and H Yamada, and K Manabe, and K Fukuda, and M Abe, and N Fukuda, and S Ito
[Function of the left atrial appendage after electrical cardioversion of atrial fibrillation to sinus rhythm].
January 2001, Przeglad lekarski,
T Tabata, and T Oki, and A Iuchi, and H Yamada, and K Manabe, and K Fukuda, and M Abe, and N Fukuda, and S Ito
Left atrial appendage doppler velocity as a predictor of recurrence of atrial fibrillation after transesophageal echocardiogram guided electrical cardioversion.
October 2023, International journal of cardiology. Heart & vasculature,
T Tabata, and T Oki, and A Iuchi, and H Yamada, and K Manabe, and K Fukuda, and M Abe, and N Fukuda, and S Ito
Transesophageal echocardiographic evaluation of left atrial appendage function and spontaneous contrast formation after chemical or electrical cardioversion of atrial fibrillation.
August 1996, The American journal of cardiology,
T Tabata, and T Oki, and A Iuchi, and H Yamada, and K Manabe, and K Fukuda, and M Abe, and N Fukuda, and S Ito
Predictors of left atrial appendage stunning after electrical cardioversion of non-valvular atrial fibrillation.
October 2003, Chinese medical journal,
T Tabata, and T Oki, and A Iuchi, and H Yamada, and K Manabe, and K Fukuda, and M Abe, and N Fukuda, and S Ito
Clinical value of left atrial appendage flow velocity for predicting of cardioversion success in patients with non-valvular atrial fibrillation.
December 2001, European heart journal,
T Tabata, and T Oki, and A Iuchi, and H Yamada, and K Manabe, and K Fukuda, and M Abe, and N Fukuda, and S Ito
Left atrial and appendage mechanical function after pharmacological or electrical cardioversion in patients with chronic atrial fibrillation: a multicenter, randomized study.
February 2000, Italian heart journal : official journal of the Italian Federation of Cardiology,
T Tabata, and T Oki, and A Iuchi, and H Yamada, and K Manabe, and K Fukuda, and M Abe, and N Fukuda, and S Ito
Assessment of left atrial appendage function after cardioversion of atrial fibrillation: relation to left atrial mechanical function.
June 1998, American heart journal,
Copied contents to your clipboard!