Modified central extracorporeal membrane oxygenation for distended left ventricle

Area of Science:

• Cardiovascular Surgery
• Thoracic Surgery
• Critical Care Medicine

Background:

• Acute aortic dissection is a life-threatening condition often requiring complex surgical intervention.
• Coronary malperfusion is a severe complication that can lead to myocardial ischemia and low cardiac output syndrome.
• Extracorporeal membrane oxygenation (ECMO) is a vital supportive therapy for refractory cardiogenic shock.

Observation:

• A 38-year-old male presented with ventricular fibrillation, diagnosed with acute aortic dissection and coronary malperfusion.
• The patient underwent total aortic arch replacement and coronary artery bypass grafting.
• Central ECMO with specific cannulation and ventricular venting strategies was initiated due to low cardiac output syndrome.

Findings:

• Successful weaning from ECMO on postoperative Day 4 was achieved.
• The patient demonstrated a full recovery and returned to normal daily life over one year post-surgery.
• The described surgical and ECMO management strategy proved effective for this complex case.

Implications:

• This case underscores the feasibility and effectiveness of combined aortic repair and ECMO in managing acute aortic dissection with severe complications.
• Advanced extracorporeal life support techniques can facilitate recovery in critically ill cardiovascular surgery patients.
• Optimized cannulation and venting strategies during ECMO are crucial for hemodynamic stability and myocardial recovery.