P1154EFFECTS OF SHORT-TERM HEMODIALYSIS WITH CENTRAL VENOUS CATHETER(HD-CVC) ON PATIENTS WITH URGENT-START PERITONEAL DIALYSIS(USPD)
Authors: Zhang Wenjing , LV Jia , Wang Zhigang , Li Lan , Sun Jiping 
Published: June 2020

Abstract

Background and Aims
Urgent-start peritoneal dialysis (USPD) has gained increasing worldwide attention. Studies have suggested that USPD has many advantages concerning the early complications, survival rates and medical expenses. Due to the lack of pre-dialysis education, most patients newly diagnosed with ESRD in China have less knowledge about the dialysis methods, whether HD or PD. So, some patients choose to receive the short-term hemodialysis with central venous catheter (HD-CVC) before USPD. Whether the HD-CVC affected USPD, and whether it was necessary for ESRD patients without indications of emergency dialysis to undergo HD-CVC transition before USPD, were addressed. So we investigate the effects of the HD-CVC on urgent-start peritoneal dialysis.

Method
Retrospective analysis was performed on patients who received USPD from August 2008 to March 2017 in the first affiliated hospital of Xi'an Jiaotong University. According to whether hemodialysis and central venous catheterization were performed before PD, these patients were divided into two groups: USPD group (HD-CVC was not performed before PD) and HD-PD group (HD-CVC was given after admission, and then the PD catheterization was performed within 2 weeks ). The follow-up time was 1 year. The differences in clinical biochemical indexes, dialysis dose, urine volume, residual renal function, dialysis adequacy, peritoneal dialysis complications and technical survival rate between the two groups were observed.

Results
1.A total of 482 patients were enrolled in this study, including 315 in the USPD group (average age 48.56±14.92 years) and 167 in the HD-PD group (average age 48.87±14.49 years). The demographics and clinical biochemical indexes (including creatinine, glomerular filtration rate, and blood potassium before admission) were similar between the two groups, and the differences were not statistically significant(P&gt;0.05).2. After PD for 1month, residual renal function, UKt/V and TKt/V in the USPD group were significantly higher than those in the HD-PD group, blood urea nitrogen and creatinine were significantly lower than those in the HD-PD group (USPD group: 4.41±4.0ml/min, 0.79±0.44, 2.17±1.39, 17.79±4.96mmol/L, 663.15±182.03umol/L; HD-PD group: 3.67±2.39ml/min, 0.64±0.42, 1.92±0.55, 19.08±8.21 mmol/L, 711.02±280.3umol/L), and the differences were statistically significant (P&lt;0.05, respectively).After PD for 6months, the urine volume in the USPD group were significantly higher than those in the HD-PD group(USPD group:964.84±539.95ml/d; HD-PD group 794.39±569.17ml/d), and the difference was statistically significant (P=0.002). 3. During the whole follow-up period, the exit-site infection rate, peritonitis infection rate, mechanical complications and technical survival rate were similar between the two groups, with no statistically significant difference (P&gt;0.05,respectively).

Conclusion
Hemodialysis with central venous catheter before USPD affected the residual renal function and dialysis adequacy. HD-CVC as a pretreatment is not recommended to the end-stage renal disease patients who required PD but without the indication of emergency dialysis.