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Clinical Presentation and Outcomes of Cardiovascular Implantable Electronic Device Infections in Hemodialysis Patients #MMPMID24388672
Hickson LJ; Gooden JY; Le KY; Baddour LM; Friedman PA; Hayes DL; Wilson WR; Steckelberg JM; Sohail MR
Am J Kidney Dis 2014[Jul]; 64 (1): 104-10 PMID24388672show ga
Background: Infection is a serious complication of cardiovascular implantable electronic device (CIED) implantation. Kidney failure is as an independent risk factor for CIED infection and associated mortality. The presence of multiple comorbid conditions may contribute to varied clinical presentations and poor outcomes in hemodialysis (HD)?dependent patients with cardiac device infection. Study Design: Case series. Setting & Participants: CIED infections in HD patients (n=17) and non-HD patients (n=398) at Mayo Clinic in Rochester, MN, between 1991 and 2008. Outcomes: Surgical management and death. Measurements: Clinical presentations, microbial organisms. Results: Of the 415 patients admitted with CIED infection, 17 (4%) were receiving long-term HD therapy. Among those on HD, mean age was 72±15 (SD) years, 59% were female, and 53% had a central venous catheter for dialysis access. All 17 patients receiving HD therapy presented with CIED-associated bloodstream infection and 41% of these had infected vegetations on CIED leads or cardiac valves. A majority (82%) were managed with complete device removal and almost half (43%) received a replacement device once bloodstream infection cleared. Device infection was associated with significant short-term mortality in HD patients and 90-day survival was only 76% in this group of patients. Limitations: Smaller sample size, majority white cohort, observational study. Conclusions: CIED infection in patients receiving HD therapy is usually associated with bloodstream infection and is frequently complicated with device-related endocarditis. Despite complete device removal in the majority of HD patients with infection, mortality remains high.