Luberculous spondylitis: epidemiologic and clinical study in non-HIV patients from northwest Spain |
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Authors: | Rodriguez-Gomez M Willisch A Fernandez-Dominguez L Lopez-Barros G García-Porrúa C Gonzalez-Gay M A |
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Institution: | Rheumatology Division, Complejo Hospitalario de Ourense, Spain. |
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Abstract: | OBJECTIVES: To study the epidemiology, clinical features, and outcome of non-human immunodeficiency virus (HIV) patients diagnosed with tuberculous spondylitis (TS) in a well-defined region of northwestern Spain. METHODS: Retrospective chart review of patients older than 14 years of age diagnosed with TS at two contiguous areas between 1986 and 1999. RESULTS: Thirty-seven patients (19 men; mean age 60.3 years) were diagnosed with TS. The average annual incidence rate of TS was 0.55/100,000 population 15 years of age and older. The thoracic and lumbar regions were affected in most cases. The mean duration of symptoms before diagnosis was 28 weeks (range 3-129). Active or healed pulmonary tuberculosis was observed in only 30%. The tuberculin skin test was negative in 24%. The most common findings at the time of diagnosis were back pain and elevated ESR (either 89%). Of note, only 19% had fever. On admission plain radiographs disclosed the presence of spondylitis in 84% of the patients. Computed tomography scan and magnetic resonance imaging yielded conclusive diagnostic data in the cases with normal radiographs, and were very useful in the visualization of abscesses and intraspinal compression. Cultures of material from percutaneous needle aspiration and open bone biopsy were positive for Mycobacterium tuberculosis in 79% and 77% of the cases, respectively. Antituberculous therapy was given to all patients (mean duration of treatment 44 weeks). Surgical procedures were performed in 12 cases, in 7 of them to remove paraspinal and/or epidural abscesses, and in 5 because of neurological complications. Local pain and neurological deficits were the mostfrequent sequelae (16 and 8 cases, respectively). One patient died during the course of treatment due to a co-morbid disease. None of the patients had relapses of tuberculosis. CONCLUSION: TS is a major cause of morbidity. There is a long delay to the diagnosis in most patients. Awareness of its clinical features and early therapy are required to reduce severe complications. |
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