JOURNAL ARTICLE

The Benefits Conferred by Radial Access for Cardiac Catheterization Are Offset by a Paradoxical Increase in the Rate of Vascular Access Site Complications With Femoral Access: The Campeau Radial Paradox

Lorenzo Azzalini, Kunle Tosin, Malorie Chabot-Blanchet, Robert Avram, Hung Q Ly, Benoit Gaudet, Richard Gallo, Serge Doucet, Jean-François Tanguay, Réda Ibrahim, Jean C Grégoire, Jacques Crépeau, Raoul Bonan, Pierre de Guise, Mohamed Nosair, Jean-François Dorval, Gilbert Gosselin, Philippe L L'Allier, Marie-Claude Guertin, Anita W Asgar, E Marc Jolicœur
JACC. Cardiovascular Interventions 2015 December 21, 8 (14): 1854-64
26604063

OBJECTIVES: The purpose of this study was to assess whether the benefits conferred by radial access (RA) at an individual level are offset by a proportionally greater incidence of vascular access site complications (VASC) at a population level when femoral access (FA) is performed.

BACKGROUND: The recent widespread adoption of RA for cardiac catheterization has been associated with increased rates of VASCs when FA is attempted.

METHODS: Logistic regression was used to calculate the adjusted VASC rate in a contemporary cohort of consecutive patients (2006 to 2008) where both RA and FA were used, and compared it with the adjusted VASC rate observed in a historical control cohort (1996 to 1998) where only FA was used. We calculated the adjusted attributable risk to estimate the proportion of VASC attributable to the introduction of RA in FA patients of the contemporary cohort.

RESULTS: A total of 17,059 patients were included. At a population level, the VASC rate was higher in the overall contemporary cohort compared with the historical cohort (adjusted rates: 2.91% vs. 1.98%; odds ratio [OR]: 1.48, 95% confidence interval [CI]: 1.17 to 1.89; p = 0.001). In the contemporary cohort, RA patients experienced fewer VASC than FA patients (adjusted rates: 1.44% vs. 4.19%; OR: 0.33, 95% CI: 0.23 to 0.48; p < 0.001). We observed a higher VASC rate in FA patients in the contemporary cohort compared with the historical cohort (adjusted rates: 4.19% vs. 1.98%; OR: 2.16, 95% CI: 1.67 to 2.81; p < 0.001). This finding was consistent for both diagnostic and therapeutic catheterizations separately. The proportion of VASCs attributable to RA in the contemporary FA patients was estimated at 52.7%.

CONCLUSIONS: In a contemporary population where both RA and FA were used, the safety benefit associated with RA is offset by a paradoxical increase in VASCs among FA patients. The existence of this radial paradox should be taken into consideration, especially among trainees and default radial operators.

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