Transcatheter aortic valve replacement using the two-step inflation technique and the kissing-balloon technique for a patient with a protruding stent in the left main coronary artery: a case report.

This was the first case report of TAVR, performed in a patient with a protruding stent in the coronary arteries, using the kissing-balloon technique and the two-step inflation technique. The combination of these two techniques was the optimal method for THV implantation without stent deformation in coronary arteries.