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Updated: Aug 1, 2026

Imaging In-Stent Restenosis: An Inexpensive, Reliable, and Rapid Preclinical Model
Published on: September 14, 2009
Incidence and predictors of late total occlusion following coronary stenting
Pinak B Shah1, Donald E Cutlip, Jeffrey J Popma
1Cardiovascular Division, St. Elizabeth's Medical Center, Boston, Massachusetts 02135, USA. pinak.shah@tufts.edu
Insights
Total occlusion after coronary stenting is rare (1.6%), often presenting as recurrent angina. Key predictors include stenting for restenosis, longer stent length, and smaller preprocedure lumen diameter.
Area of Science:
- Cardiovascular Medicine
- Interventional Cardiology
Background:
- In-stent restenosis is a significant complication following coronary stenting.
- Total occlusion represents a severe form of in-stent restenosis with potential adverse outcomes.
Purpose of the Study:
- To investigate the incidence of total occlusion in stented coronary lesions.
- To identify independent predictors of total occlusion after coronary stenting.
Main Methods:
- Analysis of 955 coronary artery lesions from three randomized stent trials and one stent registry.
- 6-month angiographic follow-up to assess for total occlusion.
- Statistical analysis including univariate and stepwise multiple logistic regression.
Main Results:
- The incidence of total occlusion was 1.6% (15/955 lesions).
- Recurrent angina was the primary presentation (60.0%); no acute ST-segment elevation myocardial infarction was observed.
- Independent predictors of total occlusion included stenting for restenosis (P=0.004), longer stent length (P<0.001), and smaller preprocedure minimum lumen diameter (P=0.012).
Conclusions:
- Total occlusion is an infrequent but significant complication of coronary stenting.
- Specific patient and procedural factors, such as prior restenosis and stent characteristics, predict its occurrence.
Abstract:
To determine the incidence and predictors of total occlusion in-stent restenosis, we reviewed three randomized stent vs. stent trials and one stent registry, which provided 955 coronary artery lesions with 6-month angiographic follow-up. Fifteen (1.6%) of the 955 stented lesions were totally occluded at 6-month follow-up. Most patients with total occlusion presented with recurrent angina at the time of repeat angiography (60.0%) while no patient presented with an acute ST segment elevation myocardial infarction. The univariate predictors of total occlusion following elective coronary stenting included stenting for restenosis after a previous percutaneous intervention (P = 0.001), longer stent length (P < 0.001), longer lesion length (P < 0.001), smaller reference vessel diameter (P = 0.022), smaller preprocedure minimum lumen diameter (MLD; P = 0.004), and smaller postprocedure MLD (P = 0.036). Stepwise multiple logistic regression analysis demonstrated that stenting for restenotic lesions (P = 0.004), longer stent length (P < 0.001), and smaller preprocedure MLD (P = 0.012) were independent predictors of total occlusion following coronary stenting.
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