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Published on: July 12, 2024
Feasibility of Coronary Angiography and Percutaneous Coronary Intervention via Left Snuffbox Approach
Yongcheol Kim1, Youngkeun Ahn2, Inna Kim1
1Department of Cardiology, Cardiovascular Center, Chonnam National University Hospital, Gwangju, Korea.
Insights
The left snuffbox approach is a feasible and safe alternative for coronary angiography and percutaneous coronary intervention, demonstrating high success rates comparable to conventional radial artery access.
Area of Science:
- Cardiovascular Interventions
- Vascular Access Techniques
- Interventional Cardiology
Background:
- The feasibility of accessing the radial artery via the left snuffbox for coronary procedures remains a concern.
- Conventional radial artery access is widely used but alternative sites are being explored.
Purpose of the Study:
- To investigate the efficacy and safety of the left snuffbox approach for coronary angiography (CAG) and percutaneous coronary intervention (PCI).
Main Methods:
- The study included 150 patients undergoing CAG or PCI for suspected myocardial ischemia.
- Radial artery cannulation via the left snuffbox approach was attempted.
- Quantitative computed angiography assessed radial artery diameter in 101 patients.
Main Results:
- Successful radial artery cannulation via the snuffbox was achieved in 88.0% of patients.
- Coronary angiography was successful in all 132 cannulated patients.
- Percutaneous coronary intervention success rate was 97.6% in 42 cases, with a low complication rate (4.9%).
Conclusions:
- The left snuffbox approach is a suitable alternative for CAG and PCI.
- It offers comparable efficacy and safety to the conventional radial approach.
Background And Objectives:
Feasibility of coronary angiography (CAG) and percutaneous coronary intervention (PCI) via left snuffbox approach is still concerned. We aimed to investigate efficacy and safety of the left snuffbox approach for CAG and PCI.
Methods:
Left snuffbox approach was tried in 150 patients who planned to perform CAG or PCI for suspected myocardial ischemia between 1 November 2017 and 31 March 2018.
Results:
Success rate of radial artery (RA) cannulation via snuffbox approach was 88.0% (n=132). Among 132 individuals, 58 (43.9%) acute coronary syndrome (ACS) patients were included. The diameter of snuffbox RA was significantly smaller than conventional RA (2.57 mm vs. 2.72 mm, p<0.001) from quantitative computed angiography of 101 patients. However, CAG via snuffbox approach by 6 French sheath was successfully performed in all 132 patients. In addition, there was significant correlation between the snuffbox and conventional RA diameter (r=0.856, p<0.001). In 42 PCI cases, including 25 patients with acute myocardial infarction (AMI), the success rate of PCI via snuffbox approach was 97.6% (n=41). Intravascular imaging-guided PCI was performed in 8 (19.5%) patients and multi-vessel PCI in 4 (9.8%) cases. Regarding vascular complication, forearm swelling with bruising, not requiring surgery or transfusion, occurred in 2 (4.9%) PCI cases.
Conclusions:
Left snuffbox approach is suitable for CAG and PCI compared with the conventional radial approach.
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