The feasibility of tissue Doppler acceleration as a new predictor of thrombogenesis in the left atrial appendage associated with nonvalvular atrial fibrillation

Echocardiography
Noboru TakahashiTohru Ohe

Abstract

Tissue acceleration utilizing the tissue Doppler imaging (TDI) technique is a new marker of ventricular contraction. We evaluated whether the left atrial appendage (LAA) wall acceleration was associated with thrombosis in patients with nonvalvular atrial fibrillation (NVAF). Seven NVAF patients with thromboembolism (TE), eight without TE, and eight with normal sinus rhythm (NSR) were studied using transesophageal echocardiography. TDI was used to evaluate the LAA wall acceleration. There was a decrease in the peak flow velocity in the TE group compared with the other two groups. There was greater LAA expansion in NVAF with TE groups (with TE [8.9 +/- 2.1 cm(2)] compared with the group without TE [7.3 +/- 2.8 cm(2)]), but the difference was not statistically significant; the difference was statistically significant compared with the NSR group (5.3 +/- 1.2 cm(2); P = 0.0035). The average of the continuous 40-frames area where tissue Doppler acceleration (TDA) was >0.024 cm/sec(2) was significantly lower in the TE group (0.12 +/- 0.05 cm(2)) compared to the group without TE (0.33 +/- 0.17 cm(2); P = 0.0017) and NSR group (0.30 +/- 0.13 cm(2); P = 0.0042), although wall velocity was not significantly different comparing the two NVA...Continue Reading

References

Nov 1, 1994·Annals of Internal Medicine·P S WellsJ Hirsh
Nov 14, 1997·Pacing and Clinical Electrophysiology : PACE·A CapucciD Aschieri
Dec 10, 1999·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·M E GoldmanJ L Halperin
Apr 12, 2000·Biomedicine & Pharmacotherapy = Biomédecine & Pharmacothérapie·A Sagripanti, A Carpi
Jun 7, 2000·Journal of the American College of Cardiology·F L Li-Saw-HeeG Y Lip
Jan 12, 2001·The American Journal of Cardiology·D FengG H Tofler
May 23, 2002·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·Paolo TrambaioloAntonio Palamara
Sep 7, 2002·Stroke; a Journal of Cerebral Circulation·Natali A Y ChungGregory Y H Lip
Feb 8, 2003·Stroke; a Journal of Cerebral Circulation·Dwayne S G ConwayGregory Y H Lip
Oct 3, 2003·Journal of the American College of Cardiology·Joseph L BlackshearHartzell V Schaff
Nov 19, 2005·Expert Review of Cardiovascular Therapy·Yves L BayardHorst Sievert
Jan 31, 2006·American Heart Journal·Allan L KleinUNKNOWN ACUTE Steering and Publications Committee for the ACUTE Investigators
Mar 6, 2007·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·Gila PerkItzhak Kronzon

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Citations

Mar 3, 2019·Wiener klinische Wochenschrift·Monika JankajovaMarianna Dvoroznakova

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