Introduction
TRA has become the first choice for coronary intervention, with few complications and more comfortable for patients [1, 2]. However, this novel access may lead to severe catheter twisting and following manipulation may be required to unravel the catheter and to avoid complications[3]. Re-rotate catheter can handle minor problems, but there were also some cases so severe that can’t be handled by this method but surgical intervention. In this report, we describe our technique to handle catheter knot and report its short-term outcome.