Lots of interesting abstracts and cases were submitted for TCTAP 2026. Below are the accepted ones after a thorough review by our official reviewers. Don’t miss the opportunity to expand your knowledge!
ABS20251111_0006
Feasibility of Distal Radial Artery Interventions and Impact of Radial Artery Diameter on Puncture Failure
By Yuan Du, Huanhuan Wang, Minghao Liu, Jinwei Zhai, Yiying Song, Haiyue Li, Yuxi Dong, Youxuan Gong, Lei Wang, Cheng Cui, Ying Song, Jue Chen, Zhan Gao, Lei Song, Weixian Yang, Yongjian Wu, Jinqing Yuan, Hui Li, Yuanlin Guo, Lijian Gao
Presenter
Yuan Du
Authors
Yuan Du1, Huanhuan Wang1, Minghao Liu1, Jinwei Zhai1, Yiying Song1, Haiyue Li1, Yuxi Dong1, Youxuan Gong2, Lei Wang3, Cheng Cui1, Ying Song1, Jue Chen1, Zhan Gao1, Lei Song1, Weixian Yang1, Yongjian Wu1, Jinqing Yuan1, Hui Li1, Yuanlin Guo1, Lijian Gao1
Affiliation
Fuwai Hospital Chinese Academy of Medical Sciences and Peking Union Medical College, China1, School of Biomedical Sciences, Harbin Medical University, China2, Shihezi People's Hospital, The Third Affiliated Hospital of Shihezi University School of Medicine, China3
View Study Report
ABS20251111_0006
Vascular Access and Closure
Feasibility of Distal Radial Artery Interventions and Impact of Radial Artery Diameter on Puncture Failure
Yuan Du1, Huanhuan Wang1, Minghao Liu1, Jinwei Zhai1, Yiying Song1, Haiyue Li1, Yuxi Dong1, Youxuan Gong2, Lei Wang3, Cheng Cui1, Ying Song1, Jue Chen1, Zhan Gao1, Lei Song1, Weixian Yang1, Yongjian Wu1, Jinqing Yuan1, Hui Li1, Yuanlin Guo1, Lijian Gao1
Fuwai Hospital Chinese Academy of Medical Sciences and Peking Union Medical College, China1, School of Biomedical Sciences, Harbin Medical University, China2, Shihezi People's Hospital, The Third Affiliated Hospital of Shihezi University School of Medicine, China3
Background
The feasibility and safety of distal radial artery (DRA) access have been extensively evaluated in clinical studies. However, its widespread adoption has been limited by the relatively higher puncture difficulty compared to conventional radial artery access.
Methods
A total of 733 patients proposed for DRA access were enrolled at the Department of Cardiology, Fuwai Hospital, between 2021 and 2024 (Figure 1). All patients underwent preoperative ultrasound evaluation to measure the radial artery diameter at the snuffbox, and at 5 cm, 10 cm, and 15 cm proximal to the styloid process of the radius. The primary outcome was DRA puncture failure.
Results
The overall DRA puncture success rate among these patients was 96.6%. PCI was performed in 74.0% of cases, with a procedural success rate of 92.7%. Multivariate logistic regression analysis showed that DRA diameter at the snuffbox was significantly associated with puncture failure (OR = 0.24; 95% CI: 0.089-0.605). Notably, the restricted cubic spline curve (RCS) demonstrated that when the artery diameter at the snuffbox was below 2.4 mm, the risk of puncture failure increased as the diameter decreased (Figure 2). Furthermore, segmented logistic regression analysis revealed that the risk of puncture failure rose significantly when the DRA diameter at the snuffbox was less than 1.67 mm (Figure 3).
Conclusion
The feasibility of DRA access was confirmed in our study, with puncture success primarily associated with the DRA diameter. This finding offers an important anatomical criterion for patient selection and provides valuable guidance for clinicians when considering DRA access in future interventions.