Extra-anatomical bypass: a surgical option for recurrent aortic coarctation

Area of Science:

• Cardiovascular Surgery
• Vascular Surgery
• Interventional Cardiology

Background:

• Recurrent isthmic coarctation management often involves balloon aortoplasty or open surgery.
• Previous small tube grafts necessitate open surgical correction, typically with anatomical aortic reconstruction.
• Endovascular treatments may not be suitable for all recurrent coarctation cases.

Purpose of the Study:

• To evaluate the efficacy and safety of an extra-anatomical bypass for recurrent aortic coarctation.
• To present a case of successful extra-anatomical bypass in a patient with prior graft surgery.

Main Methods:

• A 48-year-old female patient with recurrent aortic coarctation and severe hypertension underwent an extra-anatomical bypass.
• The procedure involved creating a bypass from the ascending to the descending aorta via median sternotomy.
• Preoperative systolic pressure was ~190-200 mmHg with a 70 mmHg gradient.

Main Results:

• The patient experienced no intraoperative or postoperative complications.
• Postoperative systolic pressure significantly decreased to 130-140 mmHg.
• The pressure gradient across the coarctation site was reduced to 10 mmHg.

Conclusions:

• Extra-anatomical bypass is a safe and effective alternative for recurrent aortic coarctation.
• This method is particularly beneficial for patients unfit for endovascular treatment or anatomical reconstruction due to prior interventions.
• The study highlights a viable surgical option for complex aortic coarctation cases.