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Published on: October 15, 2013
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.
Introduction:
Melioidosis is caused by Burkholderia pseudomallei and primarily affects non-vascular organ systems. We present a case of a melioidotic penetrating aortic ulcer (PAU) with unusual clinical features of vascular infection. The patient was successfully treated with a single-stage neoaortoiliac system procedure, highlighting the challenges in managing melioidotic aortic infections.
Presentation Of Case:
We present a case of melioidotic PAU that was successfully treated using a single-stage neoaortoiliac system procedure. A 70-year-old male with type 2 diabetes and ischemic heart disease presented with acute abdominal and back pain, later found to have an infrarenal PAU without aneurysmal changes. Following an emergency endovascular aortic repair (EVAR), blood cultures revealed Burkholderia pseudomallei bacteraemia, leading to the diagnosis of melioidosis-associated aortitis. The patient underwent a complex surgical procedure to remove the infected aorta and reconstruct it using a neoaortoiliac system, followed by a challenging recovery that included wound infection, prolonged antibiotic therapy, and subsequent hospitalization for sepsis. Despite complications, the patient remains alive and functionally independent 15 months post-surgery.
Discussion:
Burkholderia pseudomallei, found in contaminated soil and water, can lead to severe infections, including mycotic aneurysms, with a high mortality rate despite treatment. Management of vascular involvement is complex, often requiring emergency interventions like EVAR to enable survival for definitive treatment.
Conclusion:
This case emphasizes the importance of recognizing melioidosis as a potential cause of infectious aortitis, particularly in patients with a travel history to endemic regions.
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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