Reduced access aortic exposure (RAAE) technique for infrarenal abdominal aortic aneurysm (AAA) repair

Area of Science:

• Vascular Surgery
• Minimally Invasive Surgical Techniques
• Abdominal Aortic Aneurysm (AAA) Repair

Background:

• Conventional open repair of infrarenal abdominal aortic aneurysms (AAA) involves a large incision, leading to significant patient recovery times and potential complications.
• The development of minimally invasive surgical approaches aims to reduce surgical trauma and improve patient outcomes.
• Reduced Access Aortic Exposure (RAAE) is a novel technique for AAA repair utilizing a smaller incision.

Purpose of the Study:

• To evaluate the feasibility and safety of the Reduced Access Aortic Exposure (RAAE) technique for infrarenal AAA repair.
• To compare the short-term surgical outcomes of RAAE with conventional open repair (OPEN) for infrarenal AAA.

Main Methods:

• A comparative study included consecutive patients undergoing infrarenal AAA repair over three years.
• Patients were divided into two groups: RAAE (small midline incision <8 cm) and OPEN (traditional full-length midline incision).
• Patient characteristics and peri-operative outcomes were analyzed and compared between the RAAE and OPEN groups.

Main Results:

• The study included 60 patients (38 RAAE, 22 OPEN) with similar demographics and comorbidities.
• The RAAE group demonstrated significantly shorter intensive care (2 vs. 4 days, p=0.041) and total hospital stays (9 vs. 14 days, p=0.004).
• Postoperative chest infections were significantly lower in the RAAE group (13%) compared to the OPEN group (41%, p=0.025).

Conclusions:

• The Reduced Access Aortic Exposure (RAAE) technique is a feasible and safe method for infrarenal AAA repair.
• RAAE facilitates quicker postoperative recovery compared to conventional open repair.
• Morbidity and mortality rates are comparable between the RAAE and conventional open repair techniques.