Evaluation of the distal radial approach in percutaneous coronary interventions. A controlled, randomized non-inferiority trial

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Aymen Noamen
Ahmed Ben Amara
Houssem Ben AYed
Taha Yassine Jabloun
Nadhem Hajlaoui
Wafa Fehri

Abstract

Introduction: The conventional radial approach (CRA), the gold standard approach for percutaneous coronary interventions (PCI), is associated with the risk of radial artery occlusion (RAO). The distal radial approach (DRA) is an effective alternative with fewer complications.


Aim: To evaluate the efficacy in terms of puncture success and safety by RAO rate of the DRA in elective PCI in Tunisian patients.


Methods: It was a randomized controlled non-inferiority trial including patients hospitalized for elective PCI. The protocol was previously published (Tunis Med 2022; 100(3): 192-202). The primary endpoints were puncture success and RAO rate at 30 days.


Results: Overall, 250 patients were included and the groups were comparable. The preprocedural examination of the radial pulse and the Barbeau test were similar. The majority of PCIs were coronary angiography (82%). In ITT, respectively in CRA versus DRA, puncture success rates were similar (97.6% versus 96.8%; p≤0.500). RAO rates were similar (2.4% versus 3.2%; p≤0.500). Crossovers were similar. PCI through DRA lasted longer but was not more irradiating, however it required more contrast. Overall bleeding and vascular complications were similar.


Conclusion: This study demonstrated the non-inferiority of DRA compared to CRA for elective PCIs in a Tunisian population regarding puncture success and RAO rate at 30 days. Multicenter trials including urgent PCI with systematic ultrasound screening for RAO are needed.

Keywords:

Radial artery, radial approach, anatomical snuff box, coronary angiography, angioplasty, transluminal, percutaneous coronary, safety, efficacy, treatment, Northern Africa, Tunisia

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