Mycotic Pseudoaneurysm of Thoracic Aortic Caused by Salmonella Paratyphi A: A Case Report

Ying Han1, Yue Zhang1, Gege Gong2

  • 1Department of Pain Management, The Affiliated Hospital of Southwest Medical University, Luzhou, People's Republic of China.

PubMed
Abstract

Insights

A rare case of thoracic aortic pseudoaneurysm caused by Salmonella paratyphi A infection was successfully treated. This infectious pseudoaneurysm was managed with endovascular stent-graft treatment and antibiotics.

Area of Science:

  • Infectious diseases
  • Cardiovascular surgery
  • Medical microbiology

Background:

  • Mycotic pseudoaneurysm, or infectious pseudoaneurysm, is a serious condition with high mortality.
  • Salmonella species are common causes, but Salmonella paratyphi A is an extremely rare etiology.
  • Endovascular therapy is a recognized feasible treatment option.

Observation:

  • A 63-year-old female patient with diabetes presented with fever, abdominal pain, and low back pain.
  • She was diagnosed with a thoracic aortic pseudoaneurysm attributed to Salmonella paratyphi A infection.
  • The patient underwent successful treatment with endovascular stent-graft placement and antibiotics.

Findings:

  • Salmonella paratyphi A can cause mycotic pseudoaneurysms, even in the thoracic aorta.
  • Endovascular stent-graft treatment, combined with antibiotics, proved effective in this case.
  • This approach offers an alternative for patients unsuitable for open surgery.

Implications:

  • Highlights the potential of Salmonella paratyphi A to cause severe vascular infections.
  • Demonstrates the efficacy of endovascular stent-graft repair for mycotic thoracic aortic pseudoaneurysms.
  • Supports endovascular therapy as a viable alternative to open surgery in select patients.

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