Effects of intravenous, sternal, and humerus intraosseous administration of Hextend on time of administration and hemodynamics in a hypovolemic swine model
DOI:
https://doi.org/10.5055/ajdm.2016.0238Keywords:
Hextend, intraosseous, hypovolemic shockAbstract
Objective: To determine if there were significant differences among humerus intraosseous (HIO), sternal intraosseous (SIO), and intravenous (IV) administration of 500 mL Hextend in hemodynamics or administration time in a hypovolemic swine model.
Setting: Vivarium.
Subjects: Yorkshire swine; sample size was based on a large effect size of 0.5, an α of 0.05, and a power of 80 percent Swine were randomly assigned to one of four groups: HIO (n = 9), SIO (n = 9), IV (n = 9), and control (n = 9).
Intervention: Swine were exsanguinated 30 percent of their blood volume. Hextend (500 mL) was administered by either the HIO, SIO, or IV route; the control group received none.
Main Outcome: Time of administration of Hextend; systolic blood pressure (SBP), diastolic blood pressure (DBP), mean arterial pressure (MAP), heart rate (HR), cardiac output (CO), and stroke volume (SV) data were collected every 2 minutes and compared by group over 8 minutes.
Results: A repeated analysis of variance found that there were no significant differences in SBP, DBP, MAP, HR, CO, and SV among HIO, SIO, and IV groups over 8 minutes (p > 0.05). An analyses of variance determined that there was no significant difference between groups relative to time of administration (p = 0.521).
Conclusion: When IV access is difficult, both HIO and SIO are effective techniques for rapid vascular access and the administration of Hextend for patients in hypovolemic shock.
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