Measurement of left atrial pressure in paroxysmal atrial fibrillation patients by Doppler echocardiography and catheterization
Abstract：Objective To study whether Doppler echocardiography can effectively predict the left atrial pressure (LAP) in paroxysmal atrial fibrillation (PAF) patients .Methods Thirty-one PAF patients underwent transthoracic and transesophageal echocardiography 1 day before radiofre-quency ablation .Deceleration time of pulmonary venous diastolic flow (DTD )and deceleration time of pulmonary venous systolic flow (STD ) were measured .Relation between Doppler echocardio-graphy parameters and LAP was analyzed .Results The LAP was 14 .45 ± 7 .60 mm Hg (1 mm Hg=0 .133 kPa) ,the DTD was 176 .97 ± 56 .74 ms ,the STD was 193 .97 ± 55 .17 ms .The DTD and STD were closely related with the LAP (r= -0 .63 ,r= -0 .81 ,P=0 .00) .Conclusion DTD and STD can accurately and noninvasively predict the LAP in PAF patients .
Keywords：ultrasonographyDopplercatheter ablationatrial fibrillationatrial functionleftblood flow velocity
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 596-598 )