Which complication is rare in radial artery access and should be mitigated with proper technique?

• A. Radial artery occlusion
• B. Spasm
• C. Hematoma
• D. Infection

Answer: (A)

Radial artery access carries a range of potential complications, but the one that is relatively rare and particularly addressed by careful technique is radial artery occlusion. This occurs when the arterial lumen becomes blocked by thrombus after puncture and catheter manipulation. While spasm and hematoma happen more frequently, and infection is uncommon, radial artery occlusion is something clinicians actively try to prevent because it can compromise future access through the same artery.

Mitigation centers on keeping the hand’s blood flow intact while achieving hemostasis. Use adequate anticoagulation during the procedure to reduce thrombosis risk, and employ patent hemostasis so the radial artery remains patent as compression is applied. Opt for the smallest feasible sheath and minimize puncture trauma, often guided by ultrasound to improve accuracy and reduce multiple attempts. These steps collectively lower the chance of occlusion.

In short, radial artery occlusion is the complication targeted by proper technique because it’s less frequent than other issues like spasm or hematoma and is specifically preventable with careful procedural methods and hemostasis.