Objective To explore the occurrence and influencing factors of furuncle around exit of peri-toneal dialysis(PD)catheters.Methods The PD patients who were followed up regularly from September 2011 to September 2017 in the Department of Nephrology,Peking University People's Hospital were select-ed.The occurrence of furuncle and related clinical data were reviewed and analyzed.Results A total of 183 PD patients were enrolled in this study,88(48.1%)were male,the average age was 59.8±13.8 years,and the median PD duration was 27(15,51)months.Thirty-six episodes of furuncle around exit of PD catheter oc-curred in 23(12.6%)patients(0.05 episodes/patient-year).The most common site of furuncle was at 6 to 9 o'clock position around PD catheters(14 episodes,38.9%).In terms of complications,4 episodes of furuncle(11.1%)were complicated with exit-site infection and/or tunnel infection,but without peritonitis.Logistic re-gression analysis showed that shorter PD duration(OR=0.969,95%CI:0.941~0.998,P=0.039),diabetes mel-litus(OR=3.014,95%CI:1.050~8.651,P=0.040)and higher serum C-reactive protein(OR=1.154,95%CI:1.065~1.251,P<0.001)were the independent risk factors for occurrence of furuncle around exit of PD cathe-ters.Binary logistic regression found that diabetes mellitus(OR=5.513,95%CI:1.029~29.536,P=0.046)and C-reactive protein(OR=1.103,95%CI:1.016~1.197,P=0.019)were the independent risk factors for fre-quent furuncle occurrence around exit of PD catheters.Conclusions Furuncle around exit of PD catheters is not uncommon in PD patients,and may develop into exit-site infection and/or tunnel infection.The patients with diabetes mellitus,shorter PD duration and higher level of C-reactive protein should be paid attention to the presence of furuncle around the exit,and should be given corresponding education to prevent exit-site in-fection and tunnel infection.
Peritoneal dialysisExit-site infectionFuruncleSkin and soft tissue infection