Overview

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.

Eligibility

Inclusion Criteria:

Adults aged 18 years and older. Patients scheduled for coronary angiography via transradial access. Patients with a palpable radial artery pulse. Patients with a normal Allen test.

Exclusion Criteria:

Abnormal Allen test results. Absence of palpable radial artery pulse. History of prior transradial coronary angiography with hemodynamic instability. Patients with severe comorbid conditions precluding safe participation in the study.