Document Detail

Antinuclear antibodies in recurrent idiopathic pericarditis: prevalence and clinical significance.
MedLine Citation:
PMID:  18674829     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: A positive result for antinuclear antibodies (ANA), often as a fortuitous observation, may be cause for concern in idiopathic recurrent pericarditis (IRP), nevertheless data are lacking on their prevalence and clinical significance. This study is sought to investigate the prevalence and clinical significance of ANA in IRP. METHODS: ANA titres were assessed in consecutive patients with recurrent pericarditis, and matched healthy controls. Baseline and follow-up data were recorded and compared according to ANA results. RESULTS: A total of 145 consecutive patients with recurrent pericarditis were studied: 122 patients with IRP, 23 patients with pericarditis due to known etiologies (rheumatologic diagnoses and postpericardiotomy syndrome), and 122 healthy controls. ANA were detected in 53 of 122 (43.4%) patients with IRP, and in only 12 of 122 (9.8%) controls (p<0.001). Low titres (1/40-1/80) were found in the majority of cases, while moderate positivity (1/160-1/320) was more common in patients with a known rheumatic disease (26.7% vs. 5.7%; p=0.020). High concentrations of ANA (> or =1/640) were not recorded. Women were at increased risk for ANA (OR 2.22 95%CI 1.07-4.60; p=0.033). During a mean follow-up of 32 months, complications and new diagnoses were similar in patients with or without ANA positivity. CONCLUSIONS: Low-positive titres are more common in patients with IRP than in controls, suggesting a possible autoimmune pathogenesis. Nevertheless, they are often a clinically non-specific finding. Routine serologic testing for ANA suggests a source for recurrent pericarditis in less than 10% of cases, and in these cases other evidence typically suggests the underlying disease.
Massimo Imazio; Antonio Brucato; Andrea Doria; Giovanni Brambilla; Anna Ghirardello; Alessandra Romito; Giuseppe Natale; Giancarlo Palmieri; Rita Trinchero; Yehuda Adler
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Publication Detail:
Type:  Journal Article     Date:  2008-07-31
Journal Detail:
Title:  International journal of cardiology     Volume:  136     ISSN:  1874-1754     ISO Abbreviation:  Int. J. Cardiol.     Publication Date:  2009 Aug 
Date Detail:
Created Date:  2009-08-04     Completed Date:  2009-10-21     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8200291     Medline TA:  Int J Cardiol     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  289-93     Citation Subset:  IM    
Cardiology Department, Ospedale Maria Vittoria, Torino, Italy.
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MeSH Terms
Antibodies, Antinuclear / blood*
Follow-Up Studies
Middle Aged
Multivariate Analysis
Pericarditis / epidemiology*,  immunology*
Pericardium / immunology*
Predictive Value of Tests
Seroepidemiologic Studies
Reg. No./Substance:
0/Antibodies, Antinuclear

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