title: Contribution of volume overload to the arterial stiffness of hemodialysis patients.
abstract: Arterial stiffness is evaluated with the measurement of pulse wave velocity (PWV), while overhydration (OH) and nutritional status are evaluated with bioimpedance spectroscopy (BIS). In this study, we investigated the effect of a single dialysis session on arterial stiffness, hydration status, and laboratory parameters. The observational, cross-sectional, cohort study included 71 HD patients with mean age 64 ± 16 yrs. A Complior device was used to perform PWV measurements. The patients were examined immediately before and 15 min after a mid-week hemodialysis session. Body fluids and nutritional status were studied using a Body Composition Monitor (BCM), Fresenius Medical Care. Clinical and laboratory data were also analyzed. Multivariate regression analysis of PWV before HD showed that an OH increase of 1 L relate to a PWV parameter rise before HD of 0.523 m/s. Multivariate regression analysis of PWV after HD showed that a rise of central SBP after HD of 10 mmHg relate to a PWV increase after HD of 0.707 m/s. Our data indicate that hydration status and blood pressure may be major determinants of PWV in HD patients.
authors.affiliation: a Department of Nephrology Nursing , Medical University of Warsaw , Warsaw , Poland.
authors.forename: Łukasz
authors.initials: Ł
authors.lastname: Czyżewski
authors.affiliation: a Department of Nephrology Nursing , Medical University of Warsaw , Warsaw , Poland.
authors.forename: Janusz
authors.initials: J
authors.lastname: Wyzgał
authors.affiliation: b Department of Laboratory Diagnostics , Medical University of Warsaw , Warsaw , Poland.
authors.forename: Emilia
authors.initials: E
authors.lastname: Czyżewska
authors.affiliation: c Department of Medical Informatics and Telemedicine , Medical University of Warsaw , Warsaw , Poland.
authors.forename: Janusz
authors.initials: J
authors.lastname: Sierdziński
authors.affiliation: d Department of Emergency Medicine , Medical University of Warsaw , Warsaw , Poland.
authors.forename: Łukasz
authors.initials: Ł
authors.lastname: Szarpak
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001794:Blood Pressure; D001823:Body Composition; D001826:Body Fluids; D015331:Cohort Studies; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D007676:Kidney Failure, Chronic / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D009752:Nutritional Status; D011446:Prospective Studies; D063177:Pulse Wave Analysis; D006435:Renal Dialysis / Q000009:adverse effects*; D059289:Vascular Stiffness; D014883:Water-Electrolyte Imbalance / Q000150:complications*
keywords: Arterial stiffness; cardiovascular diseases; dialysis; electric impedance; pulse wave velocity