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Coronary artery bypass grafting (CABG) has been a cornerstone treatment for coronary artery disease for decades, with ongoing research into optimizing surgical outcomes through various conduits. The gastroepiploic artery (GEA) is a valuable option, particularly for distal coronary targets like the right coronary artery and posterior descending artery. The GEA's resistance to atherosclerosis and unique histological and pharmacological properties make it suitable for bypass grafting. The GEA's proximity to the inferior heart wall supports minimally invasive approaches, especially in redo surgeries, and its use in in-situ grafting facilitates the aortic no-touch technique in cases of atherosclerotic ascending aortas. This activity highlights the GEA's role in CABG and emphasizes proper handling to prevent vasospasms and ensure optimal outcomes. This activity also provides a detailed exploration of the GEA as a conduit for CABG, equipping clinicians with the knowledge to identify appropriate indications, optimize perioperative preparation, and implement evidence-based intraoperative handling. Emphasis is placed on interprofessional collaboration to enhance patient-centered care and improve surgical outcomes. The activity underscores the critical role of the healthcare team in delivering comprehensive preoperative and postoperative care to support patient safety and recovery. Objectives: Identify the unique anatomical and histological features of the gastroepiploic artery relevant to its use in coronary artery bypass grafting. Screen patients to determine appropriate candidates for coronary artery bypass grafting using the gastroepiploic artery based on clinical and anatomical criteria. Assess potential complications and outcomes associated with using the gastroepiploic artery as a coronary artery bypass grafting conduit. Collaborate with interprofessional teams to optimize perioperative care and ensure successful outcomes for patients undergoing coronary artery bypass graft using the gastroepiploic artery. Access free multiple choice questions on this topic.

Coronary artery bypass grafting (CABG) has been the mainstay treatment for coronary artery disease for several decades. Various conduit options have been attempted and studied to find the best vessel to optimize surgical outcomes.[1] The literature describes multiple conduit options with particular benefits and complication rates. The saphenous vein graft, for example, is well documented in the literature as prone to atherosclerotic changes and is inferior in long-term patency rates compared to internal mammary artery grafts. The gastroepiploic artery (GEA) graft is another conduit option described in the late 1960s in the Vineberg procedure performed by Bailey et al where intramyocardial revascularization was done using the right GEA.[2] Sterling Edwards et al in the late 1970s attempted a direct anastomosis of the GEA to the right coronary artery.[3][4] Since then, the GEA graft has been used as an alternative graft in several other documented landmark procedures. However, Pym in Canada and Suma in Japan are credited with popularizing the GEA as a viable coronary bypass conduit.[5][6] These cases depict the various CABG anastomosis techniques that can be performed using the GEA. A CABG using a GEA conduit has the benefit of long-term patency and has been shown to provide optimal postoperative quality of life.[7][8][9][10] This course will discuss the anatomy of the GEA, indications for CABG with GEA, contraindications, the surgical technique, possible complications, and clinical significance.

The following complications may arise during the CABG procedure. Remaining vigilant is important to avoid or manage complications. Intraoperative Complications Hemorrhaging/hematoma formation (from branches of the GEA into the omentum and stomach) Kinking/twisting of the pedicle as it is brought up through the diaphragm and again at the perianastomotic site (a complication due to improper operative technique) Arrhythmias (including atrial fibrillation, ventricular tachycardias, and bradycardias) GEA spasm Due to its higher content of smooth muscle cells, the GEA is more prone to spasming in the perioperative period due to mishandling or inotropic effects. Postoperative Complications Perioperative myocardial infarction Graft occlusion Low cardiac output Vasodilatory shock Arrhythmias (including atrial fibrillation, ventricular tachycardias, and bradycardias) Pericarditis/myocarditis Pericardial effusion/tamponade Late recurrent angina pectoris [22]

The success of coronary artery bypass grafting relies on the coordinated efforts of a skilled interprofessional team. Cinicians and surgeons must apply advanced diagnostic and technical skills, using imaging and surgical expertise to plan and execute revascularization effectively. Advanced clinicians and nurses play a critical role in preoperative patient education, explaining the procedure, addressing concerns, and emphasizing the importance of lifestyle modifications, such as smoking cessation. Pharmacists ensure accurate medication management, particularly by optimizing antiplatelet therapy and adjusting dosages of anticoagulants or other cardiac medications to minimize perioperative risks. Effective interprofessional communication and care coordination are essential throughout the perioperative period. Nurses and advanced clinicians monitor patients closely, recognizing and addressing potential complications like arrhythmias, infection, or hemodynamic instability. Timely communication with clinicians enables swift interventions. Postoperative care benefits from a cohesive strategy involving physical therapists and dietitians to support recovery and long-term health improvements. This collaborative approach prioritizes patient-centered care, improves outcomes, enhances safety, and optimizes team performance.