| ORIGINAL ARTICLE |
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| Year : 2020 | Volume
: 13
| Issue : 4 | Page : 252-256 |
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Comparison of weight-based dosing versus fixed dosing of 23.4% hypertonic saline for intracranial pressure reduction in patients with severe traumatic brain injury
Kirsten Busey1, Jason Ferreira1, Petra Aldridge2, Marie Crandall3, Donald Johnson1
1 Department of Pharmacy, University of Florida Health Jacksonville, Jacksonville, Florida, USA
2 Center for Health Equity and Quality Research, University of Florida Health Jacksonville, Jacksonville, Florida, USA
3 Department of Surgery, University of Florida Health Jacksonville, Jacksonville, Florida, USA
Correspondence Address:
Dr. Donald Johnson
Department of Pharmacy, University of Florida Health, 655 West 8th Street, Jacksonville, FL 32209
USA
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/JETS.JETS_66_19
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Context: Hypertonic saline (HTS) is a pharmacologic therapy used in patients with severe traumatic brain injuries to decrease intracranial pressure (ICP) associated with cerebral edema. Aims: The purpose of this study was to compare ICP reduction between fixed doses of 23.4% HTS and weight-based doses. Setting and Design: This was a retrospective study that included adult patients at a level 1 trauma center who had nonpenetrating traumatic brain injury, an ICP monitor, and received at least one dose of 23.4% HTS. Subjects and Methods: Doses were classified as either high weight-based (>0.6 ml/kg), low weight-based (<0.6 ml/kg), or standard fixed dose (30 ml). Only doses given within 5 days post-injury were evaluated. Percent reduction in ICP was compared pre- and post-dose between dosing groups, and each dose was evaluated as a separate episode. Statistical Analysis: The primary and secondary endpoints for the study were analyzed using mixed-model, repeated-measures analysis of covariance. Results: A total of 97 doses of HTS were evaluated. The primary endpoint of ICP reduction showed a 42.5% decrease in ICP after the administration of a high weight-based dose, a 36.7% reduction after a low weight-based dose, and a 31.5% reduction after a fixed dose. There was no significant relationship between dose group and percent change in ICP (P = 0.25). A sub-analysis of doses received within 48 h postinjury found a significant relationship between both dose group and percent change in ICP, and initial ICP and percent change in ICP (P = 0.04, and <0.0001 respectively). Conclusions: Our data did not show a significant difference between fixed- and weight-based doses of 23.4% HTS for ICP reduction.
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