Transulnar cardiac catheterization and percutaneous coronary intervention: techniques, transradial comparisons, anatomical considerations, and comprehensive literature review

Abstract

Ulnar arterial access for cardiac catheterization and intervention is an alternative approach compared with radial or femoral access. Ulnar access is infrequently performed since the radial artery is readily palpable and is commonly used worldwide to minimize vascular complications from femoral access. Nevertheless, ulnar access provides a suitable access site in patients who are poor candidates for femoral access, have pre-existing radial occlusion, radial artery hypoplasia or hyperplasia from prior radial artery procedures, radial stenosis, radial loops, radial tortuosity, small radial arteries, and/or have future need for radial graft for dialysis or coronary artery bypass graft. Furthermore, femoral access is the standard default option if radial access fails. Consequently, learning ulnar access provides a suitable forearm alternative to avoid femoral access when deemed high risk or undesirable. This review discusses the techniques of ulnar access, advantages and disadvantages of ulnar versus radial access, the clinical trials on ulnar cardiac catheterization and its associated complications.

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