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Thorac Cardiovasc Surg Rep 2015; 04(01): 056-058
DOI: 10.1055/s-0035-1555013
Case Report: Vascular
Georg Thieme Verlag KG Stuttgart · New York

Late-Onset Aspergillus Fumigatus Infection of an Aortic Stent Graft in an Immunocompetent Patient

Fatos Ballazhi
1   Department of Cardiac Surgery, Friedrich-Alexander University, Erlangen-Nuremberg, Germany
,
Michael Weyand
1   Department of Cardiac Surgery, Friedrich-Alexander University, Erlangen-Nuremberg, Germany
,
Werner Lang
2   Department of Vascular Surgery, Friedrich-Alexander University, Erlangen-Nuremberg, Germany
,
Christoph Schoerner
3   Institute of Clinical Microbiology, Immunology and Hygiene, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany
,
Timo Seitz
1   Department of Cardiac Surgery, Friedrich-Alexander University, Erlangen-Nuremberg, Germany
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Publikationsverlauf

12. Januar 2015

28. April 2015

Publikationsdatum:
10. Juli 2015 (online)

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Abstract

Aspergillus fumigatus as a clinical entity is difficult to diagnose. We present a case, which could facilitate diagnosis and management of the aforementioned disease. A 60-year-old man with stent graft implantation in the descending aorta (6 years ago) presented with fever, night sweats, and weight loss over 5 months. Leukocytosis and elevated C-reactive protein were constantly spiking. Blood cultures were negative. Notably, the serum immunoglobulin E (IgE) level was strongly elevated (> 1,000 U/mL). Anamnestically, the patient suffered from a mild form of atopic dermatitis and bronchial asthma. The pulmonary status showed no abnormalities in the computed tomography image. Nonetheless, a chest scan revealed a suspected abscess around the stent graft of the descending aorta. Extra-anatomic ascending to descending aortic bypass (Gelsoft 22 mm, Vascutek, Juchinnan, Scotland, United Kingdom) was performed. Intraoperative samples revealed A. fumigatus. These findings were confirmed by polymerase chain reaction analysis. Infection by A. fumigatus represents a diagnostic challenge because blood cultures are usually negative, but expeditious treatment is required to prevent occurrence of irreversible complications. A late graft infection, possibly caused by A. fumigatus should be suspected in patients with implanted grafts, who suffer from unexplained, blood culture-negative fever that does not respond to antibiotics and who have a history of dermatitis or bronchial asthma with elevated IgE antibodies.

Keywords

graft infection - aorta - Aspergillus fumigatus

Note

The article has been presented as a poster at: 30th Annual Meeting of the German Society of Vascular Surgery and Vascular Medicine; September 25, 2014; Hamburg, Germany.


 

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