Clinical Application of Subintimal Tracking and Reentry (STAR) Technique and Subintimal Plaque Modification (SPM).

Area of Science:

• Interventional Cardiology
• Vascular Biology

Background:

• Chronic total occlusion (CTO) percutaneous coronary intervention (PCI) success rates range from 85% to 90% even in experienced centers.
• Subintimal tracking and reentry (STR) and subintimal plaque modification (SPM) are emerging techniques for complex CTO cases.

Purpose of the Study:

• To review the techniques of STR and SPM for CTO PCI.
• To discuss the outcomes and optimal management strategies for these interventional procedures.

Main Methods:

• Review of current literature on STR and SPM techniques.
• Analysis of procedural success rates and complication data for STR and SPM.

Main Results:

• STR demonstrates a high success rate with a low complication profile.
• Optimal timing for balloon angioplasty and stent implantation in STR remains under investigation.

Conclusions:

• STR and SPM represent valuable adjuncts for improving CTO PCI outcomes.
• Further research is needed to refine management protocols for balloon angioplasty and stenting in STR procedures.