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  • Title: Feasibility of Distal Radial Access for Coronary Angiography and Percutaneous Coronary Intervention: A Single Center Experience.
    Author: Xie L, Wei X, Xie Z, Jia S, Xu S, Wang K.
    Journal: Cardiology; 2021; 146(5):531-537. PubMed ID: 34365454.
    Abstract:
    OBJECTIVE: Asymptomatic radial artery occlusion remains the most common complication in transradial coronary interventional procedure. To prevent radial artery occlusion, distal transradial access (dTRA) has been suggested recently. In this article, we aim to describe our experience and to assess feasibility and safety of this new access site for routine coronary angiography (CAG) and percutaneous coronary intervention (PCI). METHODS: We retrospective analyzed 1,063 consecutive patients who were assigned to undergo CAG or procedural PCI through dTRA between 1 January 2018 and 31 December 2019 at Affiliated Zhongshan Hospital of Dalian University. The size of radial sheath used was 5 or 6 French. The sheath was removed at procedure termination, and hemostasis was obtained by compression bandage with gauze. The success rate of dTRA access defined by successful radial artery cannulation on the first dTRA side attempted, the cause of access failure, the hemostasis duration, the incidence of post-catheterization radial artery occlusion, and the other access-related complications including hematoma of forearm and thumb numbness were assessed. RESULTS: Radial artery cannulation via dTRA was successful in 953 of 1,063 patients with a success rate of 89.7%. Mean age of successful cases was 64.6 ± 11.2 years (26-94 years) with 339 (35.6%) women. A total of 363 (38.1%) cases were PCI. Among them, 95 cases (10%) underwent urgent PCI, including primary PCI in 64 patients with ST-segment elevation myocardial infarction and immediate PCI (<2 h from hospital admission) in 31 patients with very high-risk non-ST-segment elevation acute coronary syndrome. A total of 269 (28.2%) cases were via left dTRA. The 6 French sheath was used in 602 (63.2%) cases. Hemostasis was obtained within 2 h in 853 (89.5%) patients. There were 110 (10.3%) procedural failures: 59 (5.6%) cases of artery puncture failure, 49 (4.9%) cases of guide wire insertion failure, and 2 (0.2%) cases of sheath insertion failure. Complications potentially related to distal radial access included radial artery occlusion at the access site (13 cases, 1.4%), forearm radial artery occlusion (4 cases, 0.4%), hematoma of forearm (5 cases, 0.5%), and transient thumb numbness (2 cases, 0.2%). CONCLUSION: dTRA is a feasible and safe access and can be used as a rational alternative to traditional radial access for routine coronary interventional procedure.
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