Epidemiology and outcomes of anal abscess in patients on chronic dialysis

a 14-year retrospective study

Authors

  • Meng-Hsuan Hsieh Chang Gung University, Linkou Chang Gung Memorial Hospital, Department of Internal Medicine
  • Yueh-An Lu Chang Gung University, Linkou Chang Gung Memorial Hospital, Department of Nephrology, Kidney Research Center
  • George Kuo Chang Gung University, Linkou Chang Gung Memorial Hospital, Department of Nephrology, Kidney Research Center https://orcid.org/0000-0002-5908-403X
  • Wei-Chiao Sun Chang Gung University, Linkou Chang Gung Memorial Hospital, Department of Nephrology, Kidney Research Center
  • YuJr Lin Chang Gung University, Research Services Center For Health Information
  • Ya-Chung Tian Chang Gung University, Linkou Chang Gung Memorial Hospital, Department of Nephrology, Kidney Research Center
  • Hsiang-Hao Hsu Chang Gung University, Linkou Chang Gung Memorial Hospital, Department of Nephrology, Kidney Research Center https://orcid.org/0000-0001-6440-8193

DOI:

https://doi.org/10.6061/clinics/2019/e638

Keywords:

End-stage Renal Disease, Chronic Dialysis, Anal Abscess, Anal Fistula, Treatment

Abstract

OBJECTIVES: We conducted this retrospective study to elucidate the clinical presentation and outcomes of anal abscess in chronic dialysis patients. METHODS: We performed a chart review of patients who were hospitalized for anal abscess from Jan. 2002 to Dec. 2015. A total of 3,074 episodes of anal abscess were identified. Of these, 43 chronic dialysis patients with first-time anal abscess were enrolled. Patients were divided into a surgical group and a nonsurgical group according to the treatment received during hospitalization. The baseline characteristics, clinical findings, treatments and outcomes were obtained and analyzed. The endpoints of this study were in-hospital mortality, one-year mortality and one-year recurrence. RESULTS: Of the 43 patients, 27 (62.7%) received surgical treatment, and 16 (37.2%) received antibiotic treatment alone. There was no significant difference in age, sex, body mass index, smoking habits, comorbidities, or dialysis characteristics between the two groups. Perianal abscess was the most common type of anal abscess, and 39.5% of patients experienced fistula formation. Most patients had mixed aerobic and anaerobic flora. Our data demonstrate that there was no significant difference in hospital stay, one-year survival or recurrence rate between the surgical group and nonsurgical group. However, there was a trend toward better in-hospital survival in patients who received surgical treatment (p=0.082). CONCLUSION: In chronic dialysis patients with anal abscess, there was no statistically significant difference in clinical presentation and outcomes between the surgical and nonsurgical groups, although the surgical group had a trend of better in-hospital survival.

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Published

2019-05-10

Issue

Section

Original Articles

How to Cite

Epidemiology and outcomes of anal abscess in patients on chronic dialysis: a 14-year retrospective study. (2019). Clinics, 74, e638. https://doi.org/10.6061/clinics/2019/e638