Utility of SuperCross Microcatheter for Complex Coronary Artery Intervention

Background: Coronary lesions with significant angulation or tortuosity pose unique challenges during intervention due to limited access and maneuverability. The SuperCross microcatheter (SCM) is specifically designed to navigate through these angulated vessels and facilitate the successful crossing of side branches.

Objectives: The objective of this article is to formulate and discuss recommendations for the primary use of SCM in coronary intervention involving complex coronary anatomy.

Methods: From January 2021 to December 2023, a total of 43 patients underwent treatment at our single center utilizing SCM techniques. The duration of the treatment period was categorized into two distinct phases: primary use and secondary use of SCM.

Results: The average age of the patients was 68.5 ± 10.6 years, with a predominance of male patients. The primary diagnosis consisted of unstable angina. Due to limited accessibility and maneuverability, there were frequent attempts made at the ostium of the left circumflex artery (30.2%), diagonal branch ostium (27.9%), and obtuse marginal branch ostium (14.0%). However, three cases failed to successfully navigate through highly angulated lesions.

Conclusions: The utilization of SCM techniques offers distinct advantages in managing complex coronary anatomies, particularly when dealing with highly angulated vessels observed in bifurcation or chronic total occlusion scenarios, as well as facilitating antegrade dissection for re-entry into the true lumen.