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Tenting Sign on Intravascular Ultrasound: A Red Flag for Coronary Perforation Risk During Rotational Atherectomy
Hao-Neng Fu1,2, Shoichi Kuramitsu1, Tien-Ping Tsao2,3
1Department of Cardiovascular Medicine, Sapporo Cardiovascular Clinic, Sapporo Heart Center, Sapporo, Japan.
Abstract:
Coronary perforation (CP) is a rare but one of the most serious complications of rotational atherectomy (RA). The presence of a "tenting sign" on intravascular ultrasound, which reflects outward deformation of the normal vessel wall due to extreme wire bias, may indicate an elevated risk of CP following RA. We report a case of CP in the left circumflex coronary artery that occurred at a site where the tenting sign was observed on IVUS before RA.
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