Document Detail


Reliability of blood pressure parameters for dry weight estimation in hemodialysis patients.
MedLine Citation:
PMID:  23379487     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Chronic volume overload resulting from interdialytic weight gain and inadequate fluid removal plays a significant role in poorly controlled high blood pressure. Although bioimpedance has been introduced as an accurate method for assessing hydration status, the instrument is not available in general hemodialysis (HEMO) centers. This study was conducted to explore the correlation between hydration status measured by bioimpedance and blood pressure parameters in chronic HEMO patients. Multifrequency bioimpedance analysis was used to determine pre- and post-dialysis hydration status in 32 stable HEMO patients. Extracellular water/total body water (ECW/TBW) determined by sum of segments from bioimpedance analysis was used as an index of hydration status. The mean age was 57.9 ± 16.4 years. The mean dry weight and body mass index were 57.7 ± 14.5 kg and 22.3 ± 4.7 kg/m(2) , respectively. Pre-dialysis ECW/TBW was significantly correlated with only pulse pressure (r = 0.5, P = 0.003) whereas post-dialysis ECW/TBW had significant correlations with pulse pressure, systolic blood pressure, and diastolic blood pressure (r = 0.6, P = 0.001, r = 0.4, P = 0.04, r = -0.4, and P = 0.02, respectively). After dialysis, the mean values of ECW/TBW, systolic blood pressure, mean arterial pressure, and pulse pressure were significantly decreased. ECW/TBW was used to classify the patients into normohydration (≤0.4) and overhydration (>0.4) groups. Systolic blood pressure, mean arterial pressure, and pulse pressure significantly reduced after dialysis in the normohydration group but did not significantly change in the overhydration group. Pre-dialysis pulse pressure, post-dialysis pulse pressure, and post-dialysis systolic blood pressure in the overhydration group were significantly higher than normohydration group. Due to the simplicity and cost, blood pressure parameters, especially pulse pressure, might be a simple reference for clinicians to determine hydration status in HEMO patients.
Authors:
Paweena Susantitaphong; Suthanit Laowaloet; Khajohn Tiranathanagul; Adhisabandh Chulakadabba; Pisut Katavetin; Kearkiat Praditpornsilpa; Kriang Tungsanga; Somchai Eiam-Ong
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Publication Detail:
Type:  Journal Article     Date:  2012-12-11
Journal Detail:
Title:  Therapeutic apheresis and dialysis : official peer-reviewed journal of the International Society for Apheresis, the Japanese Society for Apheresis, the Japanese Society for Dialysis Therapy     Volume:  17     ISSN:  1744-9987     ISO Abbreviation:  Ther Apher Dial     Publication Date:  2013 Feb 
Date Detail:
Created Date:  2013-02-05     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101181252     Medline TA:  Ther Apher Dial     Country:  Australia    
Other Details:
Languages:  eng     Pagination:  9-15     Citation Subset:  IM    
Copyright Information:
© 2012 The Authors. Therapeutic Apheresis and Dialysis © 2012 International Society for Apheresis.
Affiliation:
Division of Nephrology, Department of Medicine Extracorporeal Multiorgan Support Dialysis Center Department of Surgery, King Chulalongkorn Memorial Hospital, Thai Red Cross and Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.
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