P3630Coronary angiography and percutaneous coronary intervention post implantation of a transcatheter aortic valve

Abstract

Abstract When treating younger patients with longer life expectancy, the likelihood of having to perform a subsequent coronary angiogram and PCI during follow-up post transcatheter aortic valve implantation (TAVI) is increased. The aim of our study was to assess the feasibility and characteristics of the post TAVI coronary angiogram. We interrogated our prospective single center TAVI database to analyze data from patients who underwent a coronary angiogram or PCI post TAVI. Between August 2008 and January 2019, 405 consecutive TAVI were performed in our institution with a 30-day, 6-month and yearly follow-up. Among 405 procedures, 18 coronary angiograms with 9 PCI (RCA 2; LM 3; LAD 3, LCX 1) were performed in 17 patients post TAVI. The mean age of patients was 78.1±7.5 years (3 women), with a mean STS score of 5.6±3.4%. Five patients had a history of prior CABG. The transcatheter heart valves implanted were 6 CoreValve, 8 Evolut R, 1 Evolut Pro and 2 Edwards Sapien. The valve sizes were 31mm (n=3), 29mm (n=6), 26mm (n=3) and 23mm (n=5). The indication for the coronary angiogram was acute coronary syndrome for 8 procedures (1 STEMI, 7 NSTEMI) and stable angina for the remaining 10 procedures. The mean time between TAVI and coronary angiogram was 519±332 days (189–1093 days). Femoral and radial approach was used in, respectively, 11 and 7 (right: 5, left: 2) procedures with one cross-over needed from right transradial to transfemoral. Out of 33 attempted ostia cannulations, there were 2 failures (both involving the RCA), and 31 successes classified as selective (RCA: 7, LM: 9), borderline selective (RCA: 3, LM: 2) and non-selective but sufficient for diagnosis (RCA: 3, LM: 7), using standard catheters (average number of catheter used to cannulate RCA: 1.2±0.8 and LM: 1.7±1.1 [min. 1 and max. 4]). All planned PCI were successful with the treatment of 11 stenosis including 2 multivessel lesions. In 44% of the treated arteries, the use of a GuideLiner catheter (Vascular Solutions Inc) was required to cannulate the ostium. In conclusion, coronary angiogram post TAVI was needed in 4.2% of our cohort during follow-up. Overall, LM ostia cannulation was successful in 100% of the cases and we failed to cannulate 13.3% of RCA ostia. All PCI were successful with the need of a guiding cathteter extension in 44% of the procedures.