Litter Packaging in the Lateral Position: Effects of Position and Vacuum Mattress Packaging on Pulmonary Function

NCT07644793 | Not Yet Recruiting

• 1 other identifier: 26-46885
• Study Type: interventional
• Target: 24
• Locations: 1 country
• Sites: 1

Brief Summary

This is a study to look at the effect on breathing of various ways to package a person in a rescue litter. We will measure lung function in a litter, lying down, lying down in a vacuum mattress, one the side in a vaccum mattress, and vertical in a vacuum mattress.

Conditions

Trauma

Keywords

pulmonary function; search and rescue; trauma

Outcome Measures

Primary Outcomes (2)

• Forced Vital Capacity

  Forced Vital Capacity

  1 hour

• 1 second forced vital capacity

  1 second forced vital capacity

  1 hour

Study Arms (1)

Comparison of pulmonary function by litter packaging

EXPERIMENTAL

Order of packaging

Other: Patient packaging in a rescue litter

Interventions

Patient packaging in a rescue litter OTHER

Different packaging paradigms in a rescue litter done in a random order.

Comparison of pulmonary function by litter packaging

Eligibility Criteria

• Age: 18 Years - 65 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Subjects must be 18 to 65 years old. Per the harness manufacturer's recommendation, participants must weigh between 130 and 300 pounds and have a waist between 32 and 42 inches.

You may not qualify if:

• Weight greater than 300 pounds or less than 130 pounds, pregnancy, any known heart condition or murmur or lower extremity edema or wheezing detected on pre-participation exam, or a waist size \<32" or \>42". Prior to suspension, female participants of childbearing potential will self-administer an FDA approved urine pregnancy test supplied by the investigator. Results will be verified by the investigator.

Sponsors & Collaborators

• University of California, San Francisco: lead

Study Sites (1)

University of California, San Francisco

Fresno, California, 93701, United States

Location

MeSH Terms

Conditions

Wounds and Injuries

Study Officials

• Roger B Mortimer, MD

  UCSF - Fresno

  PRINCIPAL INVESTIGATOR

Central Study Contacts

Roger B Mortimer, MD

CONTACT

15594996450; roger.mortimer@ucsf.edu

Michelle Horwege, MSHCA

CONTACT

5594996450; michelle.horwege@ucsf.edu

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NA
• Masking: NONE
• Purpose: SUPPORTIVE CARE
• Intervention Model: SEQUENTIAL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Model Details: This is an unblinded, randomized crossover study using 12-24 health volunteer subjects. All subjects will do baseline pulmonary testing. Experimental order is balanced to avoid training effects. Choice of sequence will be by random selection of envelope.

Study Record Dates

• First Submitted: June 8, 2026
• First Posted: June 12, 2026
• Study Start (Estimated): August 15, 2026
• Primary Completion (Estimated): December 31, 2026
• Study Completion (Estimated): December 31, 2026
• Last Updated: June 12, 2026

Record last verified: 2026-06

Data Sharing

• IPD Sharing: Will not share

Locations

US (1)