Accession Number:

ADA620246

Title:

Use of an Impedance Threshold Device in Spontaneously Breathing Patients with Hypotension Secondary to Trauma: An Observational Cohort Feasibility Study

Descriptive Note:

Journal article

Corporate Author:

ARMY INST OF SURGICAL RESEARCH FORT SAM HOUSTON TX

Report Date:

2014-09-09

Pagination or Media Count:

7.0

Abstract:

BACKGROUND An impedance threshold device ITD intended for use in the spontaneously breathing patient has been shown to raise blood pressure in hypotensive patients. This device has not been evaluated in patients with hypotension secondary to trauma. This study focused on changes in key vital signs when the ITD was added to the paramedic treatment protocol for hypotensive patients with prehospital traumatic injury. METHODS A 6-month prospective nonrandomized observational cohort study was conducted of 200 spontaneously breathing symptomatic adult patients with prehospital hypotension due to multiple causes the patients of primary interest experienced a traumatic injury. Upon determination of hypotension systolic blood pressure of approximately e90mmHg, standard therapy was initiated by application of the mask-style ITD. Vital signs were documented every 2 minutes to 5 minutes after intervention. A change in mean arterial pressure MAP with ITD use was the primary study endpoint. RESULTS Of the 200 hypotensive subjects treated, 29 3 were excluded because of incomplete data sets and 3 patients treated with the ITD were excluded because their blood pressure did not meet inclusion criterion were hypotensive secondary to trauma.

Subject Categories:

  • Medicine and Medical Research
  • Medical Facilities, Equipment and Supplies

Distribution Statement:

APPROVED FOR PUBLIC RELEASE