The use of real-time three-dimensional transesophageal echocardiography in percutaneous left atrial appendage occlusion

• DOI: 10.3760/cma.j.issn.1004-4477.2015.09.005
• Publication Date: 2015-09-25
• Authors: He Zhang; Feng Mao; Shengmin Zhang; Huimin Chu; Fei Yu
• Keywords: Ostium; Appendage

Objective To evaluate the role of real-time three-dimensional transesophageal echocardiography(RT-3D TEE) in left atrial appendage (LAA) occlusion.

Methods Consecutive 10 fibrillation (AF) patients (CHADS2≥2) with high risk bleeding underwent LAA occlusion under guidance TEE. The orifice shape and characteristics lobes were assessed, size RT-3D TEE wee measured before closer implanation, position device evaluated by TEE.The correlational analysis between diameter occluder was conducted.

Results Among patients, test results revealed 8 cases complete 1 case incomplete occlusion, failed occlusion. Five showed approximate round ostium, other 5 oval ostium. average number 2.2±0.7. ostium long larger 3D compared 2D TEE[(21.8±5.1)mm vs (20.8±4.1)mm], short smaller TEE[(16.1±3.0)mm (17.0±2.6)mm], however there no significant differences measurements, mean depth comparable two methods. diameter, assessed good correlation (3D TEE: r=0.719, 0.690, 0.791, 0.711, P=0.029, 0.040, 0.011, 0.032, respectively; r=0.887, 0.894, 0.932, 0.896, P=0.001, 0.001, 0.000, respectively). RT-3D: 6 appropriate position, acceptable 2 cases, malposition.

Conclusions RT-3D can play important evaluating morphology LAA, accurately judging device.

Key words: Echocardiography, transesophageal; Echocardiography, three-dimensional; Left appendage; Occlusion