Prabhu D Udayakumar1, Arun K Chandran2, Cynthia S Crowson2, Kenneth J Warrington2, Eric L Matteson2. 1. From the Division of Rheumatology, Mayo Clinic College of Medicine, Rochester, Minnesota, USA.P.D. Udayakumar, MD; A.K. Chandran, MBBS; C.S. Crowson, MS; K.J. Warrington, MD; E.L. Matteson, MD, MPH, Division of Rheumatology, Mayo Clinic College of Medicine. udaya009@umn.edu. 2. From the Division of Rheumatology, Mayo Clinic College of Medicine, Rochester, Minnesota, USA.P.D. Udayakumar, MD; A.K. Chandran, MBBS; C.S. Crowson, MS; K.J. Warrington, MD; E.L. Matteson, MD, MPH, Division of Rheumatology, Mayo Clinic College of Medicine.
Abstract
OBJECTIVE: To assess the occurrence of infections requiring or acquired during hospitalization in patients with giant cell arteritis (GCA). METHODS: We retrospectively reviewed a population-based incidence cohort of patients with GCA diagnosed between 1950 and 2009 and compared this cohort with a non-GCA one matched for age, sex, and calendar year from the same population. RESULTS: We identified 245 patients in the GCA cohort and 245 patients in the non-GCA cohort. Seventy-four GCA subjects (134 episodes) and 79 non-GCA (153 episodes) had infections requiring or acquired during hospitalization [rate ratio (RR) 0.94; 95% CI 0.74, 1.18]. Sixty-seven subjects (107 episodes) in the GCA cohort and 63 subjects (110 episodes) in non-GCA cohort required hospitalization secondary to an infection (RR 1.04; CI 0.80, 1.36). Pneumonia, urinary tract infections (UTI), skin and soft tissue infections accounted for the majority of infections requiring hospitalization and had similar occurrence in both cohorts. UTI accounted for the majority of infections requiring hospitalization in the first 6 months after GCA incidence (RR 3.93; CI 0.85, 56.52). No difference between the 2 cohorts was noted in overall infections acquired during hospitalization (RR 0.68; CI 0.41, 1.08). CONCLUSION: There is no overall increased risk of infections requiring or acquired during hospitalization in patients with GCA who are taking glucocorticoid therapy. There may be an increased risk of infections requiring hospitalization, especially of the urinary tract, in the first 6 months after GCA incidence, although this did not achieve statistical significance in our study.
OBJECTIVE: To assess the occurrence of infections requiring or acquired during hospitalization in patients with giant cell arteritis (GCA). METHODS: We retrospectively reviewed a population-based incidence cohort of patients with GCA diagnosed between 1950 and 2009 and compared this cohort with a non-GCA one matched for age, sex, and calendar year from the same population. RESULTS: We identified 245 patients in the GCA cohort and 245 patients in the non-GCA cohort. Seventy-four GCA subjects (134 episodes) and 79 non-GCA (153 episodes) had infections requiring or acquired during hospitalization [rate ratio (RR) 0.94; 95% CI 0.74, 1.18]. Sixty-seven subjects (107 episodes) in the GCA cohort and 63 subjects (110 episodes) in non-GCA cohort required hospitalization secondary to an infection (RR 1.04; CI 0.80, 1.36). Pneumonia, urinary tract infections (UTI), skin and soft tissue infections accounted for the majority of infections requiring hospitalization and had similar occurrence in both cohorts. UTI accounted for the majority of infections requiring hospitalization in the first 6 months after GCA incidence (RR 3.93; CI 0.85, 56.52). No difference between the 2 cohorts was noted in overall infections acquired during hospitalization (RR 0.68; CI 0.41, 1.08). CONCLUSION: There is no overall increased risk of infections requiring or acquired during hospitalization in patients with GCA who are taking glucocorticoid therapy. There may be an increased risk of infections requiring hospitalization, especially of the urinary tract, in the first 6 months after GCA incidence, although this did not achieve statistical significance in our study.
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