Document Detail


The effect of bicarbonate peritoneal dialysis solutions on cardiac structural and functional alterations.
MedLine Citation:
PMID:  21543656     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: The systemic effects of absorbed glucose degradation products (GDPs) contained within the conventional peritoneal dialysis solutions (cPDS) are largely unknown, while they appear to affect also cardiovascular function. The aim of the present study was to evaluate if the new bicarbonate-based less bioincompatible new peritoneal dialysis solutions ameliorate cardiac structural and functional status as well as the peritoneal net ultrafiltration (UF) and residual renal function. Patients and methods. This is a single centre, prospective cohort study of 12 stable continues ambulatory peritoneal dialysis patients (four women, eight men) mean aged 71.3 ± of 6.01 years and mean peritoneal dialysis (PD) duration 31.9 ± 21.33 months, treated with the usual cPDS (Medital Bieffe®, with increased GDPs, low pH and lactate as a buffer system). The patients changed for a 6-month period to the newer biocompatible PD solutions (BicaVera, Fresenius® low GDPs, normal pH, bicarbonate as a buffer) and at the end of this time, they returned to their previous schema of conventional solutions, for another 6 months. During the study period, the left ventricle ejection fraction (EF), left ventricle end systolic and diastolic diameter (LVESD, LVEDD), left ventricle mass index (LVMI), glyoxal serum and peritoneal concentrations, net UF and 24 h urine volume were repeatedly estimated: at the beginning of the study (T0), after 6 months with the biocompatible solutions (T6) and at the end of study (T12), after the 6-month period using again the cPDS. The UF volume and glyoxal concentrations were estimated at end of a 4 h dwell of an exchange with a PD solution of 2.27 % glucose. RESULTS: There was a statistically significant difference between the mean levels of EF, LVESD, LVEDD, LVMI, UF and glyoxal serum and peritoneal concentrations at the beginning (T0) and in the middle of the study (T6) (for serum glyoxal P = 0.005, for peritoneal glyoxal P = 0.0004, for EF P = 0.0004, for LVESD P = 0.023, for LVEDD P = 0.002, for LVMI P = 0.0005 and for UF P = 0.005) as well as between the mean values in the middle (T6) and at the end of the evaluation period (T12) (for serum glyoxal P = 0.043, for peritoneal glyoxal P = 0.006, for EF P = 0.00009, for LVESD P = 0.012, for LVEDD P = 0.00014, for LVMI P = 0.00013 and for UF P = 0.048). On the other hand, no statistically significant difference was revealed between the T0 and T12 mean values of glyoxal (serum and peritoneal), EF, LVESD, LVEDD, LVMI and UF. During the study period, there was no statistically significant difference in daily urine volume and glomerular filtration rate. CONCLUSIONS: The use of bicarbonate-based PDS induced a statistically significant improvement of left ventricle structure (LVESD, LVEDD and LVMI) and functional (EF) indicators. These beneficial effects on left ventricle in combination with the improvement of net UF may designate a protective role of the newer bicarbonate peritoneal solutions on cardiovascular function morbidity and mortality risk of PD patients.
Authors:
Marios Theodoridis; Dimitrios Tziakas; Ploumis Passadakis; Konstantia Kantartzi; Athanasios Roumeliotis; Elias Thodis; Vassilis Vargemezis
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-5-4
Journal Detail:
Title:  Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association     Volume:  -     ISSN:  1460-2385     ISO Abbreviation:  -     Publication Date:  2011 May 
Date Detail:
Created Date:  2011-5-5     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8706402     Medline TA:  Nephrol Dial Transplant     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Nephrology, University Hospital of Alexandroupolis, Alexandroupolis, Greece.
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