Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/39113
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Type: | Journal article |
Title: | Usefulness of phased-array intracardiac echocardiography for the assessment of left atrial mechanical 'stunning' in atrial flutter and comparison with multiplane transesophageal echocardiography |
Author: | Morton, J. Sanders, P. Sparks, P. Morgan, J. Kalman, J. |
Citation: | American Journal of Cardiology, 2002; 90(7):741-746 |
Publisher: | Excerpta Medica Inc |
Issue Date: | 2002 |
ISSN: | 0002-9149 1879-1913 |
Statement of Responsibility: | Joseph B. Morton, Prashanthan Sanders, Paul B. Sparks, John Morgan, and Jonathan M. Kalman |
Abstract: | We compared transesophageal and phased-array intracardiac echocardiography (TEE/ICE) for the 2-dimensional and spectral Doppler assessment of left atrial (LA) mechanical function. TEE is commonly used to assess LA body and LA appendage mechanical function in patients who are undergoing radiofrequency ablation of typical atrial flutter. Fifteen patients underwent TEE and ICE imaging before and after ablation of typical atrial flutter. The following parameters were measured: (1) LA appendage emptying velocity and fractional area change, (2) severity of LA spontaneous echo contrast (graded 0 to 4), (3) maximal inflow velocity of the left and right upper pulmonary veins, and (5) maximal mitral valve E- and A-wave inflow velocities in sinus rhythm. Diagnostic quality imaging was achieved in all patients with TEE and ICE. Comparing TEE and ICE, the following absolute values and linear correlation coefficient (R) were obtained: preablation LA appendage emptying velocity: 0.45 +/- 0.21 versus 0.44 +/- 0.21 m/s (r = 0.95, p = <0.001); postablation LA appendage velocity: 0.33 +/- 0.24 versus 0.34 +/- 0.24 m/s (r = 0.97, p <0.001); LA appendage fractional area change: 35.3 +/- 13.7 versus 35.9 +/- 17.1% (r = 0.81, p <0.001); left upper/right upper pulmonary vein inflow velocity: 0.50 +/- 0.17/0.49 +/- 0.18 versus 0.51 +/- 0.17/0.47 +/- 0.20 m/s (r = 0.93/0.90, p <0.001); mitral valve E/A wave: 0.66 +/- 0.14/0.31 +/- 0.14 versus 0.69 +/- 0.17/0.35 +/- 0.23 (r = 0.84/0.97, p <0.002); LA spontaneous echo contrast (pre- and postablation): 1.1 +/- 1.2/1.3 +/- 1.2 versus 1.2 +/- 1.3/1.4 +/- 1.3 (r = 0.92/0.90, p <0.001). No patients were identified with LA appendage thrombus. Thus, TEE and phased-array ICE provided equivalent imaging data with high statistical correlation. ICE may be an imaging alternative to TEE in the evaluation of a "stunned" left atrium. |
Keywords: | Pulmonary Veins Atrial Appendage Mitral Valve Humans Atrial Flutter Myocardial Stunning Echocardiography, Doppler Echocardiography, Transesophageal Catheter Ablation Prospective Studies Pilot Projects Predictive Value of Tests Atrial Function, Left Adult Aged Middle Aged Female Male |
Description: | ©2002 by Excerpta Medica, Inc. All rights reserved. |
DOI: | 10.1016/S0002-9149(02)02601-2 |
Published version: | http://dx.doi.org/10.1016/s0002-9149(02)02601-2 |
Appears in Collections: | Aurora harvest 6 Medicine publications |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.