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  • Title: Initial small-volume hypertonic resuscitation of shock and brain injury: short- and long-term effects.
    Author: Anderson JT, Wisner DH, Sullivan PE, Matteucci M, Freshman S, Hildreth J, Wagner FC.
    Journal: J Trauma; 1997 Apr; 42(4):592-600; discussion 600-1. PubMed ID: 9137244.
    Abstract:
    BACKGROUND: Initial small-volume hypertonic saline resuscitation of a combined hemorrhagic shock and head injury model was studied. METHODS: Twenty-three sheep underwent hemorrhage (20 mL/kg) and parietal freeze injury followed by initial bolus resuscitation with lactated Ringer's solution (40 mL/kg) or 7.5% hypertonic saline (HS) (4 mL/kg). Cardiac index was maintained with lactated Ringer's solution for either 2 or 24 hours. Parietal lobe water content, blood volume, and blood flow were determined. Intracranial pressure (millimeters of mercury) was followed. RESULTS: Overall fluid requirements (milliliters per kilogram) were less at 2 and 24 hours with HS resuscitation. Early intracranial pressure was less with HS resuscitation. Brain water contents were similar between groups. Blood flow in injured and blood volume in uninjured parietal lobe were less for HS at 2 hours, although not different at 24 hours. CONCLUSIONS: Less fluid was needed in the short- and long-term with HS resuscitation. Early intracranial pressure was higher with lactated Ringer's solution resuscitation, possibly in part owing to increased blood volume.
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