Reinforcement of suture lines with adventitial eversion in acute type A aortic dissection

Area of Science:

• Cardiovascular Surgery
• Thoracic Surgery
• Aortic Dissection Repair

Background:

• Acute type A aortic dissection presents significant surgical challenges.
• Effective reinforcement of suture lines is crucial for successful aortic repair.
• Fragile aortic walls in some patients necessitate specialized techniques.

Purpose of the Study:

• To describe and evaluate a modified surgical technique for reinforcing suture lines in acute type A aortic dissection.
• To assess the efficacy of adventitial eversion combined with autologous pericardial strips in achieving hemostasis and obliterating the false lumen.

Main Methods:

• A novel technique involving adventitial eversion and autologous pericardial strip reinforcement for proximal and distal anastomoses.
• Proximal cuff reinforcement using a pericardial strip secured with 4-0 prolene sutures to the adventitial eversion overlap.
• Distal cuff reinforcement and false lumen obliteration using a pericardial strip between the aortic intima and stent graft.

Main Results:

• The modified technique achieved complete hemostasis at the anastomosis sites.
• Effective obliteration of the false lumen in both the proximal and distal aorta was observed.
• The technique avoids the use of glue for reinforcement.

Conclusions:

• The adventitial valgus technique with autologous pericardial strip reinforcement is an inexpensive and effective surgical approach.
• This method is particularly beneficial for patients with fragile aortic walls.
• The technique provides robust reinforcement for acute type A aortic dissection repair.