
Coronary Obstruction in Transcatheter Aortic Valve-in-Valve ...
2015年1月15日 · In the setting of native aortic valve stenosis, transcatheter aortic valve replacement (TAVR) is associated with a relatively low risk of coronary ostial obstruction, consistently <1%. 8, 9 Most commonly, the left main artery is involved, whereas obstruction of the right coronary is infrequent. 10 Similarly, acute hemodynamic collapse is common ...
Predicted vs Observed Valve to Coronary Distance in Valve-in …
2023年8月28日 · Preprocedural computed tomography (CT) workup with assessment of virtual transcatheter heart valve-to-coronary ostia (VTC) distance and transcatheter heart valve-to-sinus (VTS) distances is recommended to assess the risk of coronary obstruction following valve-in-valve (ViV) transcatheter aortic valve replacement (TAVR).
Coronary Obstruction After Transcatheter Aortic Valve …
Coronary obstruction (CO) following transcatheter aortic valve replacement (TAVR) is a life-threatening complication, scarcely studied. The authors analyzed the incidence of CO after TAVR, presentation, management, and in-hospital and 1-year clinical outcomes in a large series of patients undergoing TAVR.
Risk Assessment of Coronary Obstruction During Transcatheter …
2022年3月14日 · Coronary artery obstruction is a rare but potentially devastating complication of transcatheter aortic valve replacement (TAVR). 1 It is caused by displacement of the diseased native or bioprosthetic aortic valve leaflet by the implanted transcatheter heart valve (THV) toward the coronary ostia and/or sinotubular junction (STJ) and is more commo...
Valve-in-valve TAVI and risk of coronary obstruction: Validation of …
2022年12月15日 · The Valve-in-Valve International Data (VIVID) registry proposed a simplified classification to assess the risk of coronary obstruction during valve-in-valve transcatheter aortic valve implantation (ViV-TAVI) based on preprocedural multi …
Valve-in-Valve Challenges: How to Avoid Coronary Obstruction
Coronary obstruction is a rare but life-threatening complication in patients undergoing transcatheter aortic valve replacement (TAVR). Aortic valve-in-valve (VIV) procedures to treat failed surgical bioprosthesis is associated with ~6-fold higher risk for coronary obstruction in certain situations.
Predicted vs Observed Valve to Coronary Distance in Valve-in …
2023年7月23日 · Objectives: The authors sought to investigate the agreement of predicted VTC and VTS distances and observed post-TAVR anatomy on CT and their relationship with transcatheter heart valve (THV) expansion and deployment conditions. Methods: Fifty-one patients who underwent a balloon-expandable ViV procedure were included in this study. The ...
Risk of coronary obstruction and the need to perform BASILICA: the ...
Although data from the VIVID registry reveal that a virtual transcatheter heart valve to coronary ostium (VTC) distance of <4 mm is associated with high risk of coronary obstruction with high sensitivity and specificity (85% and 89%, respectively), the actual threshold that will put coronary flow at risk also depends on the bulkiness of the defl...
2022年12月15日 · Results: Among a total of 137 patients that underwent ViV-TAVI between August 2007 and June 2021, 109 pa-tients had stented, sutureless, or transcatheter degenerated bioprosthesis of which 96 (88%) had adequate MDCT data for risk assessment.
Preventing Coronary Obstruction During Transcatheter Aortic …
2019年7月8日 · Coronary artery obstruction is an uncommon but devastating complication of transcatheter aortic valve replacement (TAVR). Computed tomography appears to be a sensitive but nonspecific predictor of coronary artery obstruction.