Distal radial artery access (DRA) is recommended as the preferred approach over the traditional proximal radial artery access (TRA) for coronary procedures; however, there are limited randomized controlled trials (RCTs) that compared the 2. We conducted an updated meta-analysis of all RCTs from inception to July 26, 2021, that compared DRA versus TRA in patients who underwent coronary procedures. The statistical analysis was performed using a random effect model to calculate risk ratios (RRs) with 95% confidence intervals (CIs). A total of 5 RCTs were included with a total of 1,005 patients. A pooled analysis of the data showed that the rate of successful cannulation was similar between the 2 arms (RR 0.85, 95% CI 0.68 to 1.07, p = 0.16, I = 94%). The rate of radial artery spasm significantly favored the DRA arm as compared with TRA (RR 0.51, 95% CI 0.34 to 0.75, p = 0.0007, I = 0%). Significantly more patients from the DRA arm required alternative arterial access. Moreover, the DRA group had an insignificantly decreased rates of radial artery occlusion (RR 0.24, 95% CI 0.05 to 1.20, p = 0.08, I = 46%) and early discharge after transradial stenting of coronary arteries access-site hematomas (RR 0.52, 95% CI 0.18 to 1.149, p = 0.22, I = 0%). The mean time for hemostasis was significantly shorter in the DRA arm (mean difference -6.64, 95% CI -10.37 to -2.90, p = 0.0005, I = 88%). In conclusion, DRA should be considered as a viable, effective, and safe arterial access method for patients who underwent coronary procedures.

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http://dx.doi.org/10.1016/j.amjcard.2021.10.034DOI Listing

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