Related Experiment Video
Updated: May 12, 2026

A Rabbit Venous Interposition Model Mimicking Revascularization Surgery using Vein Grafts to Assess Intimal Hyperplasia under Arterial Blood Pressure
Published on: May 15, 2020
Mechanical thrombectomy in coronary artery and saphenous vein graft interventions: a review and case studies
Lawrence A Garcia1, Joseph P Carrozza
1Beth Israel Deaconess Medical Center, Section Interventional Cardiology, Harvard Medical School, 1 Deaconess Rd., Boston, MA 02215, USA. lagarcia@caregroup.harvard.edu
Insights
Mechanical thrombectomy effectively removes clot before percutaneous coronary intervention (PCI) in patients with acute coronary syndromes. This approach improves outcomes for saphenous vein graft (SVG) and native coronary artery lesions complicated by thrombus.
Area of Science:
- Cardiology
- Interventional Cardiology
- Vascular Surgery
Background:
- Obstructing thrombus in atherosclerotic coronary lesions complicates percutaneous balloon angioplasty, leading to acute events and poor long-term patency.
- Saphenous vein graft (SVG) percutaneous coronary intervention (PCI) presents challenges due to friable plaques and risks of embolization and no-reflow, increasing morbidity and mortality.
- Acute coronary syndromes (ACS) with thrombus burden in native coronary arteries or SVGs are associated with adverse outcomes.
Purpose of the Study:
- To evaluate the safety and efficacy of mechanical thrombectomy as a primary tool for clot removal before PCI in patients with ACS.
- To assess the impact of mechanical thrombectomy on reducing adverse outcomes in SVG and native coronary artery interventions complicated by thrombus.
Main Methods:
- Mechanical thrombectomy was employed as a primary strategy for clot removal in patients undergoing PCI for complex coronary lesions.
- The study focused on both saphenous vein graft (SVG) and native coronary artery lesions presenting with significant thrombus burden.
- Outcomes were assessed in patients with acute coronary syndromes (ACS) complicated by thrombus.
Main Results:
- Mechanical thrombectomy has emerged as a key intervention for managing obstructive thrombus in coronary lesions.
- Studies indicate that mechanical thrombectomy prior to PCI is safe and effective in mitigating poor outcomes.
- This approach is beneficial for both saphenous vein graft (SVG) and native coronary artery interventions in the context of acute coronary syndromes.
Conclusions:
- Mechanical thrombectomy is a valuable tool for reducing complications and improving outcomes in PCI for patients with coronary artery thrombus.
- The procedure is safe and effective for saphenous vein graft (SVG) and native coronary artery lesions.
- Utilizing mechanical thrombectomy prior to PCI is recommended for patients experiencing acute coronary syndromes with thrombotic complications.
Abstract:
Atherosclerotic coronary lesions complicated with obstructing thrombus are associated with an increased rate of acute complications and poorer long-term patency after percutaneous balloon angioplasty. Saphenous vein graft (SVG) percutaneous coronary intervention (PCI) has remained a daunting task given the friable nature of the large plaque burdens and unpredictable issues of embolization and no-reflow. These events are associated with increased morbidity including myocardial infarction and death. Today, in both native and autologous SVG lesions, mechanical thrombectomy has become a primary tool for removal of clot prior to PCI. Some studies have shown that mechanical thrombectomy prior to PCI is safe and effective to reduce poor outcomes with PCI in patients with acute coronary syndromes complicated by thrombus in both vein grafts and native coronary arteries.
Related Concept Videos
Venous Thrombosis III: Interprofessional Care
Varicose Veins II: Diagnostic Studies and Interprofessional Care
Peripheral Artery Disease III: Interprofessional Care
Peripheral Artery Disease V: Postoperative Nursing Management
Venous Thrombosis II: Clinical Manifestations and Diagnostic Studies
Coronary Artery Disease V: Interprofessional Care
