Limitations of successive transradial approach in the same arm: The Japanese experience

The transradial approach (TRA) has been used for diagnostic and interventional cardiology. It has not previously been determined how many times the same radial artery can be cannulated without complications. A total of 812 patients (502 men and 310 women) underwent angiography or angioplasty via the TRA between 1997 and 1999 at our institution with a total of 1,438 procedures. Sheaths were 5 (55%) or 6 Fr (45%). Dropout rates of 3.5% and 7.9% were found at the second TRA attempt in the men and the women, respectively. Of the 62 TRA failures, 56 (90%) were due to narrowing or occlusion of the radial artery after the previous TRA procedure. A third TRA procedure was possible in 90% of the men and 80% of the women. A fifth TRA procedure was possible in 70% of the men and 50% of the women. The dropout rates for TRA increased as successive punctures were performed. This was primarily due to vessel narrowing and occlusion occurring as a function of multiple punctures. Cathet Cardiovasc Intervent 2001;54:204–208. © 2001 Wiley‐Liss, Inc.

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