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Causative bacteria and risk factors for peritoneal dialysis-related peritonitis: A retrospective study

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Title: Causative bacteria and risk factors for peritoneal dialysis-related peritonitis: A retrospective study
Authors: Abe, Shinichi / Obata, Yoko / Sato, Shuntaro / Muta, Kumiko / Kitamura, Mineaki / Kawasaki, Satoko / Hirose, Misaki / Uramatsu, Tadashi / Nishino, Tomoya
Issue Date: Sep-2016
Publisher: Nagasaki University School of Medicine / 長崎大学医学部
Citation: Acta medica Nagasakiensia, 60(4), pp.145-151; 2016
Abstract: Background: Although peritoneal dialysis (PD) is beneficial for patients with end-stage renal diseases (ESRD), there are some critical complications. PD-related peritonitis accounts for about 30% of all cases of catheter removal and transition to hemodialysis. We investigated the incidence, causative bacteria, and risk factors of PD-related peritonitis and peritonitis-related withdrawal in patients treated in the Nagasaki University Hospital. Methods: Subjects were 43 PD patients in the Nagasaki University Hospital observed between January 1, 2008 and December 31, 2012. We established the incidence of PD-related peritonitis, investigated causative bacteria and culture-negative peritonitis rates, and examined potential risk factors, including laboratory data obtained at the commencement of PD. Results: 20 episodes of peritonitis occurred in 12 patients during the observation period, and the incidence of PD-related peritonitis was one episode per 62 patient-months. The culture-negative peritonitis rate was 10%. In the isolated causative bacteria, 55% were Gram-positive cocci and 25% were Gram-negative rods. Two episodes were associated with methicillin-resistant Staphylococcus aureus (MRSA), and each episode was accompanied with an exit-site infection. PD catheter removal caused by PD-related peritonitis occurred in 4 patients. As a result of investigation for association between PD-related peritonitis and patient’s factors including laboratory data, sex, age, and cause of ESRD, the patients who experienced PD-related peritonitis had significantly lower hemoglobin levels at the initiation of PD. Conclusions: PD-related peritonitis remains an important complication of PD. We found that low hemoglobin level at the commencement of PD was a risk factor of PD-related peritonitis. In addition, MRSA peritonitis was a risk factor of peritonitis-related withdrawal. Thus, improvement in anemia might be important to prevent PD-related peritonitis. It is also important to prevent MRSA-associated peritonitis to avoid technical failure of PD.
Keywords: peritoneal dialysis / peritonitis / methicillin-resistant Staphylococcus aureus / exit-site infection
URI: http://hdl.handle.net/10069/36874
ISSN: 00016055
Type: Departmental Bulletin Paper
Text Version: publisher
Appears in Collections:Volume 60, No. 4

Citable URI : http://hdl.handle.net/10069/36874

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