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Ascending Aortic Aneurysm Secondary to Isolated Noninfectious Ascending Aortitis

Cozijnsen, Luc, MD*; ter Borg, Evert-Jan, MD, PhD; Braam, Richard L., MD, PhD*; Seldenrijk, Cees A., MD, PhD; Heijmen, Robin H., MD, PhD§; Bouma, Berto J., MD, PhD; Merkel, Peter A., MD, MPH

JCR: Journal of Clinical Rheumatology: June 2019 - Volume 25 - Issue 4 - p 186–194
doi: 10.1097/RHU.0000000000000948
Review
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Isolated noninfectious ascending aortitis (I-NIAA) is increasingly diagnosed at histopathologic review after resection of an ascending aortic aneurysm. PubMed was searched using the term aortitis; publications addressing the issue were reviewed, and reference lists of selected articles were also reviewed. Eleven major studies investigated the causes of an ascending aortic aneurysm or dissection requiring surgical repair: the prevalence of noninfectious aortitis ranged from 2% to 12%. Among 4 studies of lesions limited to the ascending aorta, 47% to 81% of cases with noninfectious aortitis were I-NIAA, more frequent than Takayasu arteritis or giant cell arteritis. Because of its subclinical nature and the lack of “syndromal signs” as in Takayasu arteritis or giant cell arteritis, I-NIAA is difficult to diagnose before complications occur, such as an aortic aneurysm or dissection. Therefore, surgical specimens of dissected aortic tissue should always be submitted for pathologic review. Diagnostic certainty requires the combination of a standardized histopathologic and clinical investigation. This review summarizes the current knowledge on I-NIAA, followed by a suggested approach to diagnosis, management, and follow-up. An illustrative case of an uncommon presentation is also presented. More follow-up studies on I-NIAA are needed, and diagnosis and follow-up of I-NIAA may benefit from the development of diagnostic biomarkers.

From the *Department of Cardiology, Gelre Hospital, Apeldoorn;

Departments of Rheumatology and Internal Medicine,

Pathology, and

§Cardiothoracic Surgery, St Antonius Hospital, Nieuwegein;

Department of Cardiology, Academic Medical Center, Amsterdam, the Netherlands; and

Division of Rheumatology and Department of Biostatistics, Epidemiology, and Informatics, University of Pennsylvania, Philadelphia, PA.

The authors declare no conflict of interest.

Correspondence: Luc Cozijnsen, MD, Department of Cardiology, Gelre Hospital, Albert Schweitzerlaan 31, 7334 DZ Apeldoorn, the Netherlands. E-mail: l.cozijnsen@gelre.nl.

Online date: December 6, 2018

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