Coronary Procedures After TAVI With the Self‐Expanding Aortic Bioprosthesis Medtronic CoreValve™, Not an Easy Matter

OBJECTIVES To evaluate the feasibility of coronary procedures after transcatheter aortic valve implantation (TAVI) with the CoreValve™ device. BACKGROUND Due to its design, CoreValve™ prosthesis may interfere with coronary procedures. Data on this issue are sparse. METHODS Between 2007 and 2015, 550 patients underwent CoreValve™ TAVI in our hospital. Among them, 16 underwent coronary angiogram after TAVI and were included in our retrospective study. For each patient, we compared the characteristics of coronary angiograms performed before and after TAVI. RESULTS Coronary angiogram was deemed successful in 9 patients. The mean number of different catheters used in attempts to cannulate the coronary arteries was 3.6 ± 1.4 and the rate of selective intubation was low. Fluoroscopy time (13.2 ± 5.8 vs. 7.2 ± 4.6 min, P = 0.003), dose area product (5,347 ± 4,919 vs. 3,433 ± 3,420 cGy/m2 , P = 0.004), and contrast volume (157.7 ± 69.6 vs. 108.3 ± 42.6 mL, P = 0.006) were more important in coronary angiograms performed after CoreValve™ implantation. Percutaneous coronary intervention was successfully performed in 6 out of 7 patients who required it. CONCLUSION Coronary procedures after CoreValve™ TAVI are feasible, but challenging. This problem is currently rare but will be more common as the indications of TAVI are expanded to younger patients with longer life expectancies. Recommendations for post-TAVI coronary procedures are needed, particularly for centers unfamiliar with the management of post-TAVI patients.

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