A rare case of infectious aortitis caused by Burkholderia pseudomallei

James Dodd1, Bibombe Mwipatayi2, Amber Louw3

  • 1Department of Vascular Surgery, Royal Perth Hospital, Perth, Australia.

Abstract

Insights

Melioidosis, a severe infection caused by Burkholderia pseudomallei, can affect the aorta. A rare case of melioidotic penetrating aortic ulcer was successfully treated with a neoaortoiliac system, demonstrating effective management of complex vascular infections.

Area of Science:

  • Infectious Diseases
  • Vascular Surgery
  • Cardiology

Background:

  • Melioidosis, caused by Burkholderia pseudomallei, typically affects non-vascular organs.
  • Vascular involvement in melioidosis, such as mycotic aneurysms, carries a high mortality rate.
  • Early recognition and intervention are crucial for managing severe melioidosis infections.

Observation:

  • A 70-year-old male with diabetes and ischemic heart disease presented with acute abdominal and back pain.
  • An infrarenal penetrating aortic ulcer (PAU) was identified without aneurysmal changes.
  • Blood cultures revealed Burkholderia pseudomallei, diagnosing melioidosis-associated aortitis post-emergency endovascular aortic repair (EVAR).

Findings:

  • The patient underwent a complex single-stage neoaortoiliac system procedure for aortic reconstruction.
  • Despite complications including wound infection and sepsis, the patient achieved functional independence 15 months post-surgery.
  • Successful management of this rare melioidotic aortic infection was achieved through a multidisciplinary approach.

Implications:

  • This case highlights the importance of considering melioidosis in infectious aortitis, especially with a travel history to endemic areas.
  • Effective management of melioidotic aortic infections requires timely diagnosis and often emergency surgical intervention.
  • The neoaortoiliac system procedure proved effective for definitive treatment in this challenging vascular infection case.

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