Abstract
Transradial cardiac catheterization is an exciting technique that has many advantages over the traditional femoral approach. Most importantly it is a safe option for PCI with potential same day discharge for uncomplicated cases. Despite its advantages, some challenges may be encountered with the transradial approach. After arterial access and spasm, vascular artery anomalies constitute a significant number of procedural failure. Radial artery anomalies are encountered in greater than 17% of cases performed in literature. In particular, radial loop is an important cause of transradial procedural failure. We present a literature review and a case from our institution and outline techniques in order to traverse the loop and make the transradial approach a success.