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A Murine Model of Stent Implantation in the Carotid Artery for the Study of Restenosis
Published on: May 14, 2013
Worse six-month outcome for patients with multiple stents in a single coronary artery
E Gaxiola1, R E Vlietstra, K F Browne
1Watson Clinic LLP, Lakeland, Florida.
Insights
Using multiple stents in a single coronary artery significantly increases repeat target lesion revascularization (RTLR) compared to single stent placement. Optimal treatment for diffuse coronary artery disease requires further definition.
Area of Science:
- Cardiovascular Interventions
- Interventional Cardiology
- Coronary Artery Disease Management
Background:
- Historical restenosis rates for multiple stents in single coronary arteries were as high as 60%.
- Limited data existed on outcomes before optimal stent deployment techniques.
Purpose of the Study:
- To compare the 6-month outcomes of patients receiving multiple Palmaz-Schatz stents versus single stents in the same coronary artery.
- Evaluate the safety and efficacy of multiple stenting strategies.
Main Methods:
- A comparative study involving 348 patients with multiple stents and 174 patients with single stents.
- A 6-month follow-up period was utilized to assess clinical outcomes.
Main Results:
- Multiple stenting (two or more stents) was associated with a significantly higher rate of repeat target lesion revascularization (RTLR) (22.6%-23.1%) compared to single stenting (10.4%) (p=0.001).
- No significant differences were observed in myocardial infarction or death rates between single and multiple stent groups within 6 months.
- Multivariate analysis identified multiple stents, diabetes mellitus, and type C lesions as predictors of RTLR.
Conclusions:
- Placing two or more stents in a single coronary artery leads to a significantly higher incidence of RTLR compared to single stent placement.
- The optimal strategy for managing diffuse coronary artery disease remains an area for further investigation.
Background:
Before the "era" of optimal stent deployment, very few data concerning multiple stents in a single coronary artery showed restenosis rates up to 60%.
Objective:
To evaluate the 6-month outcome of patients receiving multiple Palmaz-Schatz stents (> or =2 stents) in a single coronary artery compared to those receiving single stents.
Methods:
Three hundred and forty-eight patients having multiple stents were compared to 174 patients receiving single stents during a 6-month follow-up.
Results:
Repeat target lesion revascularization (RTLR), either repeat PTCA or CABG, was 10.4% in the single-stent group, 22.6% in the two-stent group, and 23.1% in the > or =2 stent group (p = 0.001, single versus 2 or > or =2 stents). There was not a significant difference between single stent and multiple stent groups in myocardial infarction and death during 6-month follow-up. Multivariate analysis showed multiple stents, diabetes mellitus, and type C lesion to be predictors of RTLR.
Conclusions:
Placement of two or more stents was associated with a significantly higher RTLR compared with single stent placement. The optimal approach to diffuse coronary artery disease remains to be defined.
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