Heparin-free distal radial artery approach to cardiac catheterisation and the small radial recurrent artery.

Radial artery access has transformed cardiac catheterisation, allowing it to be performed in a daycase setting, saving both hospital beds, and nursing care costs. However, there are two common and seemingly diametrically opposite complications. These are radial artery occlusion and forearm haematoma; the former could be reduced by heparin, but at the expense of precipitating the latter. These complications increase proportionally to the size of radial artery sheath used. Interestingly, by cannulating the radial artery more distally beyond its bifurcation in the hand, the distal radial approach appears to be the 'one stone, two birds' or the synchronous Chinese idiom, 'yīshí'èrniăo's' solution, reducing both complications at the same time. Extending this further and downsizing to a 4Fr catheter system, heparin use could be spared altogether, without complications, and haemostasis achieved with short manual pressure at the puncture site. Hence, further cost savings by foregoing commercial compression bands, and abolishing access site care for nurses. We illustrate the above strategy in a patient with challenging radial anatomy, made simple and easy.

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Conflicts of interest None declared.