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Relationship Between Bioimpedance-Determined Body Composition and Peritoneal Transport in Peritoneal Dialysis

2017-05-29Journal article Open access
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dc.contributor.authorCosta, B
dc.contributor.authorDel Peso, G
dc.contributor.authorBajo, MA
dc.contributor.authorCarreño, G
dc.contributor.authorFerreira, M
dc.contributor.authorFerreira, C
dc.contributor.authorSelgas, R
dc.date.accessioned2018-02-16T15:47:26Z
dc.date.available2018-02-16T15:47:26Z
dc.date.issued2017-05-29
dc.description.abstractPURPOSE: In peritoneal dialysis (PD) patients, body fluid homeostasis is dependent on peritoneal elimination of water and solutes. Patients with less favorable peritoneal transport parameters should be more overhydrated. Despite this, the association between faster transport and overhydration (OH) is weak, and the factors that influence hydration status are still poorly characterized. Modified peritoneal equilibration tests (PET) offer us new parameters that might correlate better with hydration status, like free water transport (FWT). The aim of this study was thus to establish the relationships between new peritoneal transport parameters and body composition parameters estimated by bioimpedance spectroscopy (BIS). METHODS: Prospective observational study on incident PD patients with a baseline and 1-year follow-up evaluation. RESULTS: 61 patients were included in the baseline evaluation, 19 of whom had a 1-year follow-up evaluation; 67.2% were fluid overloaded. There was a negative correlation between D/P creatinine and FWT (r = -0.598, p = 0.000). The fraction of FWT was negatively correlated with OH (r = -0.302, p = 0.018). Peritoneal protein losses (PPL) were also correlated with OH (r = 0.287, p = 0.028). There were no significant differences in OH according to small-solute transport status or fluid output parameters. After 1 year, we observed a significant worsening of renal function and an improvement in 24-hour ultrafiltration (UF) and hydration status, but we detected no differences in peritoneal transport of water or solutes that could explain these changes. CONCLUSIONS: There is a poor relationship between kidney/peritoneal function parameters and body composition parameters. The fraction of FWT and PPL may be underestimated markers of peritoneal health and of its contribution to the hydration status.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationInt J Artif Organs. 2017 May 29;40(5):212-218pt_PT
dc.identifier.doi10.5301/ijao.5000584pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.17/2909
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherWichtigpt_PT
dc.subjectAdultpt_PT
dc.subjectAgedpt_PT
dc.subjectBiological Transportpt_PT
dc.subjectBody Compositionpt_PT
dc.subjectElectric Impedancept_PT
dc.subjectFemalept_PT
dc.subjectHumanspt_PT
dc.subjectMalept_PT
dc.subjectMiddle Agedpt_PT
dc.subjectPeritoneumpt_PT
dc.subjectProspective Studiespt_PT
dc.subjectWater-Electrolyte Imbalancept_PT
dc.subjectPeritoneal Dialysispt_PT
dc.subjectHCC NEFpt_PT
dc.titleRelationship Between Bioimpedance-Determined Body Composition and Peritoneal Transport in Peritoneal Dialysispt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage218pt_PT
oaire.citation.issue5pt_PT
oaire.citation.startPage212pt_PT
oaire.citation.titleInternational Journal of Artificial Organspt_PT
oaire.citation.volume40pt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT

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