Association Between Radial Artery Access Point and Radial Artery Spasm

This prospective clinical study aims to investigate whether the puncture site distance from the radial styloid process affects the incidence of radial artery spasm (RAS) during coronary angiography. Patients undergoing coronary angiography via radial access will be randomized into two groups based on the puncture site distance: 0-20 mm and \>21 mm from the styloid process. The procedure will be performed by experienced interventional cardiologists using standard techniques and medications. The primary goal is to determine if a specific puncture site reduces the incidence of RAS, which is a common complication during transradial procedures. The study will also record procedural details and monitor for other complications to identify the optimal puncture site for reducing RAS and improving patient comfort.

NCT Number	NCT07060820
Lead Sponsor	Mersin Medicalpark Hastanesi
Conditions	Coronary Artery Disease, Radial Artery Spasm
Enrollment	380 participants
Start Date	2025-07-03
Primary Completion	2025-12-31 (estimated)
Study Completion	2026-01-15 (estimated)
Updated on ClinicalTrials.gov	2026-01-21