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Usable implantation depth for watchman left atrial appendage occlusion is greater with appendage angiography than transesophageal echocardiography
Author(s) -
Glassy Matthew S.,
Sharma Gaurav,
Singh Gagan D.,
Smith Thomas W. R.,
Fan Dali,
Rogers Jason H.
Publication year - 2019
Publication title -
catheterization and cardiovascular interventions
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.988
H-Index - 116
eISSN - 1522-726X
pISSN - 1522-1946
DOI - 10.1002/ccd.27916
Subject(s) - medicine , angiography , occlusion , appendage , radiology , cardiology , anatomy
Abstract Objectives To compare left atrial appendage (LAA) angiography to transesophageal echocardiography (TEE) for assessing usable LAA depth. Background TEE is typically employed for procedural measurement of LAA ostial diameter and depth. Since angiography enhances distal LAA anatomy, we sought to compare angiography to TEE for determining usable LAA depth. Methods Seventy five Watchman device cases were retrospectively evaluated. Two independent cardiologists measured intraoperative LAA ostial diameter and depth at standard 0°, 45°, 90°, and 135° TEE omniplane views and in the right anterior oblique (RAO) 30°, caudal (CAUD) 30° angiographic view. Results The average age and CHA 2 DS 2 VASc score were 74 (±7.2) years and 4.6 (±1.3), respectively. The average ostial diameter and depth (mm) by TEE were 0°: 19.6 and 26.5; 45°: 17.5 and 26.6; 90°: 18.3 and 25.1; 135°: 19.5 and 23.3. The ostial diameter and depth (mm) by RAO 30° CAUD 30° angiography were 21.1 and 29.7. This angiographic view corresponds to a TEE view between 90° and 135°. In comparison to angiography, TEE 90° underestimated the LAA ostial diameter by 2.9 ± 3.7 mm ( P < 0.001) and by 1.9 ± 4.0 mm at TEE 135° ( P < 0.01); Pearson's r 0.53 angiography/TEE 90° and 0.50 angiography/TEE 135°. More importantly, TEE 90° underestimated the true usable LAA depth by 5.4 ± 5.8 mm ( P < 0.001) and by 7.3 ± 6.1 mm at TEE 135° ( P < 0.001); Pearson's r 0.39 angiography/TEE 90° and 0.30 angiography/TEE 135°. Conclusions Compared to TEE, LAA angiography provides additional depth information and may be particularly valuable when patients have insufficient depth for Watchman by TEE measures.