Clinical characteristics and outcomes of peritoneal dialysis (PD)-related peritonitis after colonoscopy.

Colonoscopy is known to be associated with peritonitis in peritoneal dialysis (PD) patients. Antibiotic prophylaxis is recommended before colonoscopy. This study aims to investigate the clinical characteristics and outcomes of patients with PD-related peritonitis after colonoscopy. PD patients who were followed up in Pamela Youde Nethersole Eastern Hospital, with colonoscopy done from 1 January 2009 to 31 December 2019, were included for record review retrospectively. During this period, 74 patients underwent 115 colonoscopies. Fourteen patients (12.2%) developed PD-related peritonitis within 1 week after colonoscopy. There was no statistically significant difference in mean age, PD vintage, PD modality and history of PD-related peritonitis between patients with or without colonoscopy-related peritonitis. Polypectomy was more common in patients who developed peritonitis (78.6%) compared to those without peritonitis (35.6%) (p = 0.006). Ten of the 14 PD patients who had colonoscopy-related peritonitis responded to medical treatment while 4 patients required PD catheter removal. Two patients converted to maintenance haemodialysis and two died. Only 33% of Gram-negative bacteria isolated were sensitive to intravenous cefuroxime which was given as prophylactic antibiotic before colonoscopy. In conclusion, the overall risk of PD patients developing peritonitis post colonoscopy was 12.2%. Polypectomy was associated with higher risk of colonoscopy-related peritonitis. Large-scale study is needed to delineate effective antibiotic prophylaxis for colonoscopy-related peritonitis.

Distinct Symptom Experience Among Subgroups of Patients With ESRD Receiving Maintenance Dialysis.

CONTEXT: Patients with end-stage renal disease receiving dialysis experience multiple concurrent symptoms. A person-centered understanding of patients' symptom experiences may offer insights into individualized management. OBJECTIVES: We identified subgroups of patients based on their symptom experiences and the characteristics that differentiated among these subgroups. Outcomes associated with these subgroups were evaluated. METHODS: A total of 354 patients on dialysis were recruited at two regional hospitals in Hong Kong. While the Dialysis Symptom Index was adopted to assess symptoms, the Kidney Disease Quality of Life 36 and Karnofsky Performance Status Scale were used to evaluate the quality of life outcomes. Information on health care utilization and mortality were retrieved from medical records. Subgroups of patients were identified using latent class analysis based on the occurrence ratings. Differences in characteristics and outcomes were determined using Chi-squared test, analysis of variance, and Cox regression analysis. RESULTS: Three latent classes were identified: low (37.8%), moderate physical-low psychological (29.7%), and moderate physical-high psychological (32.5%). Higher comorbidity burden and lower serum albumin levels differentiated between the low and moderate physical-low psychological classes. The moderate physical-high psychological class had the highest number of symptoms, poorest quality of life outcomes, and more unscheduled clinic visits. A shorter mean survival time (421 vs. 431 days) was also found. CONCLUSION: Consistent with findings in other chronic conditions, subgroups of patients on dialysis have unique symptom experiences. Therefore, an individualized approach to symptom management is warranted. Our findings offer a phenotypic characterization for research on the underlying mechanisms for these symptom experiences.