Electronic bed weighing vs daily fluid balance changes after cardiac surgery.

Details

Serval ID
serval:BIB_3223C05A5328
Type
Article: article from journal or magazin.
Collection
Publications
Title
Electronic bed weighing vs daily fluid balance changes after cardiac surgery.
Journal
Journal of Critical Care
Author(s)
Schneider A.G., Thorpe C., Dellbridge K., Matalanis G., Bellomo R.
ISSN
1557-8615 (Electronic)
ISSN-L
0883-9441
Publication state
Published
Issued date
2013
Peer-reviewed
Oui
Volume
28
Number
6
Pages
1113.e1-1113.e5
Language
english
Notes
Publication types: Journal Article ; Observational Study ; Research Support, Non-U.S. Gov't Publication Status: ppublish
Abstract
PURPOSE: The purpose of this study is to establish the validity and reliability of measuring weight in critically ill patients with electronic weighing beds.
METHODS: All patients admitted to a private intensive care unit (ICU) after cardiac surgery over a 7-month period were weighed on admission and then twice daily (1200 and 2400 hours) using electronic weighing beds (Hill-Rom, Batesville, AR). For each measurement, nonremovable items were recorded, and an average value was deducted from measured weight. We compared differences in body weights (BWs) between 2 consecutive 12-hour periods with the corresponding fluid balance (FB). In addition, we compared weights obtained with electronic weighing beds with those obtained with a regular calibrated scale on ICU discharge.
RESULTS: We obtained data in 103 patients for 414 (75.5%) of 548 of all possible BW measurements. On average, we identified a total of 3.5 kg (SD, 1.4) of nonremovable items on patients' beds. The correlation between 12-hourly changes in BW and FB was weak (r = 0.28; 95% confidence interval [CI], 0.17-0.39), even after correction for insensible fluid losses (r = 0.27; 95% CI, 0.15-0.38) and when only values obtained in intubated patients were taken into account (r = 0.34; 95% CI, 0.16-0.49). Similarly, limits of agreements were wide (95% CI, -3.3 to 3.5 kg). There was also poor agreement between weights obtained on electronic beds and those obtained on the regular scale on ICU discharge (95% CI, -7.6 to 7.6 kg).
CONCLUSION: Body weight measured by electronic weighing beds does not seem sufficiently robust or accurate to replace daily FB in ICU. The clinical value of purchasing such beds remains uncertain.
Keywords
APACHE, Aged, Beds, Body Weight, Calibration, Cardiac Surgical Procedures, Critical Illness, Female, Humans, Intensive Care Units, Length of Stay/statistics & numerical data, Male, Middle Aged, Reproducibility of Results, Water-Electrolyte Balance
Pubmed
Web of science
Create date
26/11/2014 21:41
Last modification date
20/08/2019 13:17
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