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Gastrointestinal involvement in polyarteritis nodosa (1986-2000): presentation and outcomes in 24 patients
Stuart M Levine1, David B Hellmann, John H Stone
1Division of Rheumatology, Department of Medicine, The Johns Hopkins Vasculitis Center, Johns Hopkins University, 1830 E. Monument Street, Baltimore, MD 21205, USA.
Purpose:
Gastrointestinal involvement in polyarteritis nodosa carries a poor prognosis. A 1982 review from our institution reported acute abdominal syndromes in 31% of patients with polyarteritis nodosa, and that all 5 patients with acute surgical abdomens died. We reviewed our more recent experience to determine if outcomes have changed since.
Subjects And Methods:
We reviewed the records of all patients with polyarteritis nodosa in our vasculitis database between 1986 and 2000. Inclusion criteria were a diagnosis of polyarteritis nodosa, symptoms or signs of gastrointestinal involvement, and either a mesenteric angiogram consistent with polyarteritis nodosa or histopathologic proof of a medium-vessel vasculitis. We calculated a prognostic (5 factor) score for all patients.
Results:
We identified 24 patients with polyarteritis nodosa who had gastrointestinal involvement during their illness. Thirteen (54%) of the patients developed acute surgical abdomens, 3 of whom died (P = 0.02 by comparison with the historical cohort). Mean (+/- SD) prognostic scores were higher among patients in the acute abdomen group compared with those who did not have acute abdominal syndromes (1.7 +/- 0.9 vs. 0.6 +/- 0.7, P = 0.002), corresponding with the observed mortality in these groups.
Conclusion:
Gastrointestinal involvement occurs commonly in polyarteritis nodosa and carries a poor prognosis. Compared with a historical cohort at our institution, mortality from this complication may have decreased, perhaps because of earlier diagnosis.