Publications by authors named "Christina W Tan"
Article Synopsis
- The study aimed to identify optimal fluoroscopic projections of aortic valve cusps to improve visualization for procedures like BASILICA and to see if these projections could be feasibly applied in a catheter lab setting.
- A total of 128 pre-TAVR CT scans were analyzed using advanced imaging software, which helped to align leaflets and evaluate the success rate of obtaining specific fluoroscopic angles.
- The findings revealed high feasibility for certain projections, particularly for right and left coronary cusps, while some views were much less achievable, suggesting that adjusting patient/table positioning could enhance the success of these angles during procedures.
Background: Eccentricity of coronary ostial positions in relation to the aortic valve cusp may influence the target laceration location in BASILICA (Bioprosthetic or native Aortic Scallop Intentional Laceration to prevent Coronary Artery obstruction). Eccentricity of the coronary ostia in relation to coronary cusps of native and valve-in-valve transcatheter aortic valve replacement (TAVR) was not well described before.
Methods: A total of 121 pre-TAVR patients' CT data (72 native valves TAVR and 49 bioprosthetic surgical valves TAVR) was included and coronary ostial eccentricity angles were measured and compared.
Objectives: The aim of this study was to report the 1-year results of transcatheter aortic valve replacement (TAVR) with the Edwards SAPIEN 3 (S3) valve in extremely large annuli.
Background: Favorable 30-day outcomes of S3 TAVR in annuli >683 mm have previously been reported. Pacemaker implantation rates were acceptable, and a larger left ventricular outflow tract and more eccentric annular anatomy were associated with increasing paravalvular leak.
Objectives: The aim of this study was to determine factors affecting paravalvular leak (PVL) in transcatheter aortic valve replacement (TAVR) with the Edwards SAPIEN 3 (S3) valve in extremely large annuli.
Background: The largest recommended annular area for the 29-mm S3 is 683 mm. However, experience with S3 TAVR in annuli >683 mm has not been widely reported.
A 68-year-old woman presented to our hospital with unstable angina and was admitted for further evaluation. While hospitalized, she developed persistent angina with hypotension along with ST-segment elevation in leads V-V along with lead aVR elevation on 12-lead electrocardiogram. Coronary angiography revealed diffuse multi-vessel coronary vasospasm most notably in the left anterior descending artery (LAD).
View Article and Find Full Text PDF