Abdominal aneurysmectomy following previous peritonitis

Area of Science:

• Vascular Surgery
• Infectious Disease
• Abdominal Aortic Aneurysm (AAA) Management

Background:

• Abdominal aortic aneurysms (AAAs) are often treated with endovascular or open surgical repair using grafts.
• Peritonitis, an inflammation of the peritoneum, can lead to serious infections, including graft sepsis.
• Graft sepsis is a severe complication following AAA repair, potentially requiring reintervention.

Observation:

• Two patients experienced graft sepsis months after AAA repair, following a prior episode of peritonitis.
• Identical bacteria were cultured from both the peritonitis and the subsequent graft sepsis in both patients.
• This suggests a direct link between the initial infection and the graft complication.

Findings:

• In elective AAA repair cases, a significant delay of at least one year post-peritonitis is recommended.
• For urgent or emergency AAA repair, especially with suspected contamination, ligation of the aorta and extra-anatomic bypass grafts are advised.
• Prompt identification and management of infection are crucial in AAA patients.

Implications:

• Postponing elective AAA repair after peritonitis can reduce the risk of graft sepsis.
• Alternative surgical strategies like aorta ligation and extra-anatomic bypass may be safer in contaminated emergency settings.
• This highlights the importance of considering prior infectious history in AAA treatment planning and timing.