PMID- 16722025 OWN - NLM STAT- MEDLINE DCOM- 20061005 LR - 20200109 IS - 0896-8608 (Print) IS - 0896-8608 (Linking) VI - 26 IP - 3 DP - 2006 May-Jun TI - Automated peritoneal dialysis has significant effects on systemic hemodynamics. PG - 328-35 AB - OBJECTIVES: Maintenance of residual renal function (RRF) is an important determinant of outcome in peritoneal dialysis patients. It remains contentious as to whether automated peritoneal dialysis (APD) leads to an increased rate of decline of RRF compared with continuous ambulatory peritoneal dialysis (CAPD). We studied whether APD was associated with significant systemic hemodynamic changes that may play a role in the accelerated loss of RRF. METHODS: As a follow-on from a previous study, 8 well-established CAPD patients underwent a 4-hour APD treatment consisting of 3 drain/fill cycles using 2 x 2.5 L 1.36% glucose and 1 x 3.86% glucose dialysate. Each dwell phase lasted 76 minutes. Blood pressure (BP) and a full range of hemodynamic variables, including pulse (HR), stroke volume (SV), cardiac output (CO), and total peripheral resistance (TPR), were measured noninvasively using continuous arterial pulse wave analysis. RESULTS: BP fell during 2 of the 3 drain/fill periods when dialysate was drained from the peritoneal cavity, but then rose upon instillation of dialysate fluid. The fall in BP was associated with a fall in TPR, matched by an inadequate rise in SV and CO. Over the entire study period, TPR progressively rose to +53.4% above baseline (p = 0.032). Both SV and CO fell over the same period, to -21.1% (p = 0.060) and -22.4% from baseline (p = 0.037) respectively. This did not result in any significant difference between start and end BP. CONCLUSIONS: This study demonstrates that APD is associated with significant systemic hemodynamic effects. The increased number of drain/fill cycles compared to CAPD, or the progressive rise in TPR and reduction in CO (possibly due to a cooling effect), may potentially be factors that adversely affect RRF in APD patients. FAU - Selby, Nicholas M AU - Selby NM AD - Department of Renal Medicine, Derby City Hospital, Derby, United Kingdom. FAU - Fonseca, Sally AU - Fonseca S FAU - Hulme, Lisa AU - Hulme L FAU - Fluck, Richard J AU - Fluck RJ FAU - Taal, Maarten W AU - Taal MW FAU - McIntyre, Christopher W AU - McIntyre CW LA - eng PT - Comparative Study PT - Journal Article PL - United States TA - Perit Dial Int JT - Peritoneal dialysis international : journal of the International Society for Peritoneal Dialysis JID - 8904033 SB - IM CIN - Perit Dial Int. 2006 May-Jun;26(3):306-8. PMID: 16722020 MH - Aged MH - Aged, 80 and over MH - Automation MH - Blood Pressure/physiology MH - Female MH - Hemodynamics/*physiology MH - Humans MH - Kidney Failure, Chronic/etiology/therapy MH - Male MH - Middle Aged MH - Peritoneal Dialysis/*methods MH - Peritoneal Dialysis, Continuous Ambulatory/*methods EDAT- 2006/05/26 09:00 MHDA- 2006/10/06 09:00 CRDT- 2006/05/26 09:00 PHST- 2006/05/26 09:00 [pubmed] PHST- 2006/10/06 09:00 [medline] PHST- 2006/05/26 09:00 [entrez] PST - ppublish SO - Perit Dial Int. 2006 May-Jun;26(3):328-35.