Distal transradial access for coronary angiography and interventions in everyday practice: data from the TRIANGLE Registry

  • Schenke K
  • Viertel A
  • Prog R
  • et al.
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Abstract

Background: Transradial access has become the primary route for coronary angiography (CAG) and percutaneous coronary interventions (PCI). Recently a new puncture site more distally on the dorsal side of the hand in the area of the anatomical snuffbox has been developed. Purpose: With this multicenter registry, we wish to demonstrate the feasibility and safety of the distal transradial access (dTRA) and assess the rate of radial artery occlusion (RAO). As an exploratory endpoint, we compared peri‐interventional data between right‐ and left‐radial access and differences between the true anatomical snuffbox (SB) and the distal‐ dorsal (DD) puncture site. Methods: Between December 2018 and May 2019 we included all patients into this registry with a planned CAG or PCI via dTRA in three cardiology centers in Germany. Procedural data, puncture success, crossover rate and complications were registered. We examined proximal and distal radial artery patency by ultrasound within 48 h after removal of compression device. Results: A total of 327 patients were enrolled (mean age: 69 years, male: 69%), in 5 cases bilateral distal puncture was performed, puncture success was high (N=316/332, 95%) and the crossover rate was low (27/332, 8%). The rate of proximal (2/332) and distal (3/332) RAO was low. Major complications were not encountered. The comparison between SB and DD site and left‐ and right radial access showed no significant differences (see table). The indication for CAG in 50% of the population was acute coronary syndrome, including 28 patients with ST elevation myocardial infarction (8.4%). Overall PCI rate was 48%. PCI cases did not demonstrate a crossover rate higher than in CAG. PCI on chronic total occlusion (CTO) was performed in 16 cases including bilateral dTRA. Conclusion: Coronary angiography and interventions via dTRA can be performed with a high rate of success and safety. This data suggests a reduced rate of RAO compared to previous reported data after cannulation via the standard forearm radial artery puncture site. Randomized studies are needed to further investigate these results. (Table Presented).

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Schenke, K., Viertel, A., Prog, R., Joghetaei, N., Matthiesen, T., Ohm, N., … Groenefeld, G. (2020). Distal transradial access for coronary angiography and interventions in everyday practice: data from the TRIANGLE Registry. European Heart Journal, 41(Supplement_2). https://doi.org/10.1093/ehjci/ehaa946.2453

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