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Updated: Feb 13, 2026

A Murine Model of Stent Implantation in the Carotid Artery for the Study of Restenosis
Published on: May 14, 2013
Mean Platelet Volume as a Predictor for Restenosis After Carotid Angioplasty and Stenting
Zhengze Dai1, Jie Gao1, Shun Li1
1From the Department of Neurology, Jinling Clinical College of Nanjing Medical University, China (Z.D., Z.C., X.L., G.X.); Department of Neurology, Nanjing Pukou Hospital, China (Z.D.); Department of Neurology, Jinling Hospital, Medical School of Nanjing University, China (J.G., R.L., X.L., G.X.); Department of Neurology, Jinling Hospital, Southern Medical University, Nanjing, China (S.L.); Department of Neurology, Jiangsu Province Hospital of Traditional Chinese Medicine, Nanjing, China (Z.C.); and Department of Neurology, Jinling Hospital, Second Military Medical University, Nanjing, China (M.L.).
Insights
Elevated mean platelet volume (MPV) is linked to in-stent restenosis (ISR) after carotid angioplasty and stenting (CAS). Patients with higher MPV before the procedure may need stronger antiplatelet treatment to prevent ISR.
Area of Science:
- Cardiovascular Medicine
- Hematology
- Interventional Cardiology
Background:
- Platelet aggregation is crucial in developing in-stent restenosis (ISR) post-carotid angioplasty and stenting (CAS).
- Mean platelet volume (MPV) serves as an indicator of platelet reactivity.
Purpose of the Study:
- To investigate the association between MPV and ISR in patients undergoing CAS.
- To identify predictors of ISR after CAS.
Main Methods:
- 261 patients with CAS were enrolled, with MPV measured pre-procedure.
- ISR was assessed at 6 months and annually using angiography or ultrasonography.
- Cox regression analysis identified predictors of ISR.
Main Results:
- ISR occurred in 17.6% of patients over a mean follow-up of 12.1 months.
- Elevated baseline MPV (>10.1 fL) was significantly associated with ISR (HR, 3.20).
- Other predictors included lesion length, residual stenosis, and baseline glucose.
Conclusions:
- Higher preprocedural MPV may indicate an increased risk of ISR after CAS.
- Patients with elevated MPV might benefit from intensified antiplatelet therapy post-CAS.
Background And Purpose:
Platelet aggregation plays a vital role in the development of in-stent restenosis (ISR) after carotid angioplasty and stenting (CAS). Mean platelet volume (MPV) has been suggested as an index of platelet reactivity. This study aimed to investigate the association between MPV and ISR in CAS patients.
Methods:
A total of 261 patients with CAS were enrolled. MPV was measured before CAS procedure. Digital subtraction angiography, computed tomographic angiography, or duplex ultrasonography was performed at 6 months and annually after the procedure. ISR was defined as ≥50% stenosis in the treated lesion. Cox regression was used to identify predictors of ISR after CAS.
Results:
Of the 261 patients with CAS, 46 (17.6%) were determined with ISR during a mean follow-up of 12.1±16.1 months (range, 2.1-120.7). On multivariate analysis, baseline MPV >10.1 fL (hazard ratio, 3.20; 95% confidence interval, 1.28-8.03), lesion length (hazard ratio, 1.05; 95% confidence interval, 1.02-1.08), residual stenosis (hazard ratio, 1.07; 95% confidence interval, 1.05-1.10), and baseline glucose (hazard ratio, 1.01; 95% confidence interval, 1.00-1.02) were associated with ISR.
Conclusions:
Elevated MPV may be associated with ISR after CAS. Patients with high preprocedural MPV may benefit from an intensified antiplatelet therapy after CAS.
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