Retrospective Study
Copyright ©The Author(s) 2021. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Clin Cases. Apr 26, 2021; 9(12): 2751-2762
Published online Apr 26, 2021. doi: 10.12998/wjcc.v9.i12.2751
Application of a rapid exchange extension catheter technique in type B2/C nonocclusive coronary intervention via a transradial approach
Hong-Chao Wang, Wei Lu, Zi-Han Gao, Ya-Nan Xie, Jie Hao, Jin-Ming Liu
Hong-Chao Wang, Zi-Han Gao, Ya-Nan Xie, Jie Hao, Jin-Ming Liu, Department of Cardiology, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei Province, China
Wei Lu, Department of Cardiology, The Third Hospital of Shijiazhuang City, Shijiazhuang 050000, Hebei Province, China
Author contributions: Wang HC designed and performed the research and wrote the paper; Lu W, Gao ZH, and Xie YN provided clinical advice and performed the research; Hao J supervised the report and contributed to the analysis; Liu JM designed the research and supervised the report.
Institutional review board statement: The study was reviewed and approved by the Research Ethics Committee of The Second Hospital of Hebei Medical University (Approval No. 2020-P033).
Informed consent statement: All study participants, or their legal guardian, provided informed written consent prior to study enrollment.
Conflict-of-interest statement: There is no relevant conflict of interest.
Data sharing statement: Technical appendix, statistical code, and dataset available from the corresponding author at [liujinming74@163.com]. Participants gave informed consent for data sharing.
Open-Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Jin-Ming Liu, MD, Associate Professor, Department of Cardiology, The Second Hospital of Hebei Medical University, No. 215 Heping West Road, Shijiazhuang 050000, Hebei Province, China. liujinming74@163.com
Received: December 24, 2020
Peer-review started: December 24, 2020
First decision: January 17, 2021
Revised: January 29, 2021
Accepted: February 24, 2021
Article in press: February 24, 2021
Published online: April 26, 2021
Core Tip

Core Tip: Transradial intervention (TRI) has been widely used due to its advantages compared with the transfemoral approach. In TRI, poor back-up support may result in failure of the balloon or stent to reach the targeted lesion. A rapid exchange guide extension catheter provides convenient and efficient back-up support in the TRI procedures. The findings of our study revealed the efficacy and safety of the rapid exchange extension catheter for the balloon and stent delivery in the treatment of type B2/C nonocclusive coronary lesions. The rapid exchange extension catheter technique is a useful approach for complex coronary lesions via the radial access.