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ASSESSMENT OF THE LEFT ATRIAL APPENDAGE MORPHOLOGY BY MULTI-DETECTOR COMPUTED TOMOGRAPHY IN ATRIAL FIBRILLATION PATIENTS FOR CATHETER ABLATION
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Abstract
Purpose: to assess left atrial appendage morphology by multi-detector computed tomography in atrial fibrillation (AF) patients for catheter ablation
Materials and Methods: This retrospective and cross-sectional study included 45 patients diagnosed with AF and treated by catheter ablation and 45 patients without AF undergoing multi-detector computed tomography in E hospital from 1/2020 to 7/2022
Results: The mean age 56,16 ± 11,83, median of left atrium volume in the AF group was 118.13 (96 - 145.56) ml > the control group 72.88 (60.53 - 95.74) ml, (p < 0.001). The most common left atrium morphology in both groups is "cactus" with 46.67% in the AF group and 33.33% in the control group, the middle left atrial appendage orifice was the most common in the AF group (53,33%), while in the control group, the lower left atrial appendage orifice was the most common (44.44%), the length of the left atrial appendage in the AF group was 43.15 ± 8.11 mm, the control group was 44.29 ± 9.76 mm. There is a positive correlation with the mean level between left atrial appendage length and left atrial volume (r = 0.573, p < 0.001).
Conclusion: The most common left atrium morphology in both groups is "cactus". There is a positive correlation with the mean level between left atrial appendage length and left atrial volume.
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Keywords
atrial fibrillation, catheter ablation, left atrial, left atrial appendage, multi-detector computed tomography
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