A practical and inexpensive proximal anastomosis technique in calcified aorta

Area of Science:

• Cardiovascular Surgery
• Vascular Surgery
• Cardiac Anesthesia

Background:

• Atherosclerotic aorta presents significant surgical challenges, increasing risks of atheroemboli and bleeding during cardiac procedures.
• Aortic clamping is a critical step for initiating cardiac arrest or proximal anastomosis, but poses high risks in patients with severe aortic calcification.
• Beating heart coronary artery bypass grafting (CABG) without aortic clamping is often preferred for these high-risk patients.

Observation:

• Performing proximal anastomosis in patients with severely calcified aorta using traditional aortic clamping methods is technically difficult and hazardous.
• The risk of dislodging calcified plaques (atheroemboli) and causing bleeding is substantially elevated when the aorta is clamped.
• Alternative strategies are needed to safely manage proximal anastomosis in this vulnerable patient population.

Findings:

• A novel, feasible, and inexpensive technique for proximal anastomosis has been developed that avoids the need for aortic clamping.
• This technique is specifically designed for patients with severely atherosclerotic aortas, mitigating the risks associated with traditional clamping.
• The method allows for safe and effective bypass grafting in high-risk individuals.

Implications:

• This technique offers a safer alternative for cardiac surgery in patients with severely calcified aortas, potentially reducing perioperative complications.
• The described method provides a cost-effective solution, making advanced surgical options more accessible.
• Wider adoption of this clamp-free anastomosis technique could improve outcomes and reduce morbidity in a challenging surgical subset.