Related Experiment Video
Updated: Jun 18, 2026

Surgical Porcine Model of Chronic Myocardial Ischemia Treated by Exosome-laden Collagen Patch and Off-pump Coronary Artery Bypass Graft
Published on: September 15, 2023
Surgical therapy for complex coronary artery disease
Andrew W Elbardissi1, Jorge M Balaguer, John G Byrne
1Division of Cardiac Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA.
This review covers advanced surgical options for severe coronary artery disease, including repeat bypass surgery and endarterectomy, for patients ineligible for percutaneous coronary intervention. It also explores transmyocardial revascularization and gene therapy for complex cases.
Area of Science:
- Cardiology
- Cardiac Surgery
- Interventional Cardiology
Background:
- Coronary artery disease (CAD) management has advanced, improving patient longevity.
- Despite progress, underlying CAD pathology persists, necessitating further treatment options.
- Severe CAD often becomes unsuitable for standard percutaneous coronary intervention (PCI).
Purpose of the Study:
- To review surgical strategies for patients with severe CAD not amenable to PCI.
- To discuss outcomes of repeated coronary artery bypass grafting (CABG) and coronary endarterectomy.
- To explore emerging therapies like transmyocardial revascularization (TMR) and protein/gene therapy for complex CAD.
Main Methods:
- Literature review of surgical options for severe coronary artery disease.
- Analysis of perioperative assessment, procedural details, and outcomes for repeated CABG and endarterectomy.
- Discussion of TMR and protein/gene therapy in extreme CAD cases.
Main Results:
- Repeated CABG and endarterectomy offer viable solutions for select patients with severe CAD.
- TMR and protein/gene therapy represent potential future avenues for refractory CAD.
- Patient selection and surgical expertise are critical for successful outcomes in complex cases.
Conclusions:
- Advanced surgical techniques and novel therapies are crucial for managing complex coronary artery disease.
- These interventions extend options for patients with severe CAD unsuitable for conventional PCI.
- Ongoing research in TMR and gene therapy holds promise for intractable coronary artery disease.
Related Concept Videos
Coronary Artery Disease V: Interprofessional Care
Acute Coronary Syndrome IV: Interprofessional Care
Atherosclerosis III: Management
Peripheral Artery Disease III: Interprofessional Care
Angina IV: Management
Aneurysm III: Interprofessional Care
