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BioMed Research International
Volume 2016, Article ID 5972930, 5 pages
Research Article

Relationship between Interdialytic Weight Gain and Blood Pressure in Pediatric Patients on Chronic Hemodialysis

1Pediatric Nephrology, Yale University, New Haven, CT, USA
2Biostatistics and Epidemiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
3Pediatric Critical Care, Yale University, New Haven, CT, USA

Received 28 August 2016; Accepted 10 October 2016

Academic Editor: John Maesaka

Copyright © 2016 Olivera Marsenic et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Overhydration is reported to be the main cause of hypertension (HTN) as well as to have no association with HTN in hemodialysis (HD) population. This is the first report of the relationship between interdialytic weight gain (IDWG) and pre-HD blood pressure (BP) in pediatric patients in relation to residual urine output (RUO). We studied 170 HD sessions and interdialytic periods performed during a 12-week period in 5 patients [age 4–17 years, weight 20.8–66 kg, 3 anuric (102 HD sessions), and 2 nonanuric (68 HD sessions)]. BP is presented as systolic BP index (SBPI) and diastolic BP index (DBPI), calculated as systolic or diastolic BP/95th percentile for age, height, and gender. IDWG did not differ () between anuric and nonanuric pts. There was a positive but not significant correlation between IDWG and both pre-HD SBPI (, ) and pre-HD DBPI (, ). Pre-HD SBPI ( versus ) and DBPI ( versus ) were higher in nonanuric patents ( and , resp.). Pre-HD HTN may not be solely related to IDWG and therapies beyond fluid removal may be needed. Individualized approach to HTN management is necessary in pediatric dialysis population.