NATO Litter: Fluid Immersion System (FIS) Versus Traditional Mattress for Pressure Dispersion

NCT ID: NCT03483623

Last Updated: 2020-03-25

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

View full results

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

44 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-03-21

Study Completion Date

2018-10-19

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

The purpose of this study is to measure peak skin interface pressures and the total area of the body exposed to skin interface pressure above 30 mm Hg at different areas of the body in the supine position on two different support surfaces applied to a standard North Atlantic Treaty Organization (NATO) litter (NSN: 6530-01-380-7309) and a Raven 90C Litter (NSN6530-01-432-5114). The support surfaces are the Warrior Evacuation Litter Pad (WELP) and the Dolphin Fluid Immersion Simulation Stretcher System (FIS). These pressure measurements and transcutaneous oxygenation readings will allow us to determine differences between support surfaces.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

The purpose of this study is to measure peak skin interface pressures and the total area of the body exposed to skin interface pressure above 30 mm Hg at different areas of the body in the supine position on two different support surfaces applied to a standard North Atlantic Treaty Organization (NATO) litter (NSN: 6530-01-380-7309) and a Raven 90C Litter (NSN6530-01-432-5114). The Raven 90C is the official litter for the U.S. Navy. It is approved for flight on United States Air Force (USAF) aircraft. It can be easily folded for storage and transport to remote settings. The support surfaces are the Warrior Evacuation Litter Pad (WELP) and the Dolphin Fluid Immersion Simulation Stretcher System (FIS). In theory, mattresses that reduce and/or minimize pressure on the capillary bed's perfusion can help reduce pressure related injury such as pressure or decubitus ulcer development. Skin interface pressure measurements using a pressure mapping system and transcutaneous oxygenation readings will allow us to determine these differences between support surfaces. A better understanding of skin interface pressure associated with the litter support surfaces is vital for military nurses to develop and implement preventative interventions to reduce pressure ulcer development in our patients. In addition, this study will provide information to help determine the usefulness and feasibility of incorporating the fluid immersion system (FIS) as a litter support surface.

This research protocol has one major aim:

To determine the difference in the pressure redistribution qualities between the WELP and the Dolphin FIS

There are also two secondary aims:

1. To determine the difference in the pressure redistribution qualities of the WELP when used as the mattress on the NATO litter and Raven litter.
2. To determine the difference in the pressure redistribution qualities of the Dolphin FIS when used as the mattress on the NATO litter and Raven litter.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Pressure Distribution Military Litters Peak Pressure Index Total Surface Area Tissue Perfusion

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

NON_RANDOMIZED

Intervention Model

CROSSOVER

This protocol is a Quasi Experimental Cross Factor study. The subject sample is nonrandomized. Subjects will be their own control and have repeated measurements to compare baseline and supine transcutaneous oxygenation levels on four different surface combinations.
Primary Study Purpose

HEALTH_SERVICES_RESEARCH

Blinding Strategy

NONE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

NATO WELP combination

Subjects will be their own control and have repeated measurements to compare baseline and supine transcutaneous oxygenation levels and interface pressures on NATO litter and WELP mattress combination

Group Type EXPERIMENTAL

NATO WELP combination

Intervention Type OTHER

Interface pressure will be measured using the XSensor X3 Pressure Mapping System. Transducers will be placed near both scapula. Measures will be obtained in upright (baseline) and supine positions on 4 randomly assigned litter mattress combinations. Constant TCPO2 measures, as well as peak pressures and total body surface area exposed to skin will be measured for the occiput, sacrum, both scapula, buttocks and heel areas. It will take about 20 minutes for each combination. The session is complete after all measures have been obtain for all litter/mattress combinations.

NATO FIS combination

Subjects will be their own control and have repeated measurements to compare baseline and supine transcutaneous oxygenation levels and interface pressures on NATO litter and Fluid Immersion System (FIS) mattress combination

Group Type EXPERIMENTAL

NATO FIS combination

Intervention Type OTHER

Interface pressure will be measured using the XSensor X3 Pressure Mapping System. Transducers will be placed near both scapula. Measures will be obtained in upright (baseline) and supine positions on 4 randomly assigned litter mattress combinations. Constant TCPO2 measures, as well as peak pressures and total body surface area exposed to skin will be measured for the occiput, sacrum, both scapula, buttocks and heel areas. It will take about 20 minutes for each combination. The session is complete after all measures have been obtain for all litter/mattress combinations.

RAVEN WELP combination

Subjects will be their own control and have repeated measurements to compare baseline and supine transcutaneous oxygenation levels and interface pressures on Raven 90C litter and WELP mattress combination

Group Type EXPERIMENTAL

RAVEN WELP combination

Intervention Type OTHER

Interface pressure will be measured using the XSensor X3 Pressure Mapping System. Transducers will be placed near both scapula. Measures will be obtained in upright (baseline) and supine positions on 4 randomly assigned litter mattress combinations. Constant TCPO2 measures, as well as peak pressures and total body surface area exposed to skin will be measured for the occiput, sacrum, both scapula, buttocks and heel areas. It will take about 20 minutes for each combination. The session is complete after all measures have been obtain for all litter/mattress combinations.

RAVEN FIS combination

Subjects will be their own control and have repeated measurements to compare baseline and supine transcutaneous oxygenation levels and interface pressures on Raven 90C litter and Fluid Immersion System (FIS) mattress combination

Group Type EXPERIMENTAL

RAVEN FIS combination

Intervention Type OTHER

Interface pressure will be measured using the XSensor X3 Pressure Mapping System. Transducers will be placed near both scapula. Measures will be obtained in upright (baseline) and supine positions on 4 randomly assigned litter mattress combinations. Constant TCPO2 measures, as well as peak pressures and total body surface area exposed to skin will be measured for the occiput, sacrum, both scapula, buttocks and heel areas. It will take about 20 minutes for each combination. The session is complete after all measures have been obtain for all litter/mattress combinations.

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

NATO WELP combination

Interface pressure will be measured using the XSensor X3 Pressure Mapping System. Transducers will be placed near both scapula. Measures will be obtained in upright (baseline) and supine positions on 4 randomly assigned litter mattress combinations. Constant TCPO2 measures, as well as peak pressures and total body surface area exposed to skin will be measured for the occiput, sacrum, both scapula, buttocks and heel areas. It will take about 20 minutes for each combination. The session is complete after all measures have been obtain for all litter/mattress combinations.

Intervention Type OTHER

NATO FIS combination

Interface pressure will be measured using the XSensor X3 Pressure Mapping System. Transducers will be placed near both scapula. Measures will be obtained in upright (baseline) and supine positions on 4 randomly assigned litter mattress combinations. Constant TCPO2 measures, as well as peak pressures and total body surface area exposed to skin will be measured for the occiput, sacrum, both scapula, buttocks and heel areas. It will take about 20 minutes for each combination. The session is complete after all measures have been obtain for all litter/mattress combinations.

Intervention Type OTHER

RAVEN WELP combination

Interface pressure will be measured using the XSensor X3 Pressure Mapping System. Transducers will be placed near both scapula. Measures will be obtained in upright (baseline) and supine positions on 4 randomly assigned litter mattress combinations. Constant TCPO2 measures, as well as peak pressures and total body surface area exposed to skin will be measured for the occiput, sacrum, both scapula, buttocks and heel areas. It will take about 20 minutes for each combination. The session is complete after all measures have been obtain for all litter/mattress combinations.

Intervention Type OTHER

RAVEN FIS combination

Interface pressure will be measured using the XSensor X3 Pressure Mapping System. Transducers will be placed near both scapula. Measures will be obtained in upright (baseline) and supine positions on 4 randomly assigned litter mattress combinations. Constant TCPO2 measures, as well as peak pressures and total body surface area exposed to skin will be measured for the occiput, sacrum, both scapula, buttocks and heel areas. It will take about 20 minutes for each combination. The session is complete after all measures have been obtain for all litter/mattress combinations.

Intervention Type OTHER

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Adults over the age of 18 years with lawful access to Travis Air Force Base (AFB)

Exclusion Criteria

* Orthopedic or neurological conditions that prevent a subject from lying flat (supine) without any pillows for head, neck, or lumbar support
* Medical conditions (such as an uncontrollable tremor or twitch) that prevent a subject from staying still for the required periods of time (20 minute increments).
* Pregnancy
* Inability to ambulate unassisted, unstable gate (presenting increased fall risk)
* Extremity prosthetics (hand/arm or foot/leg)
* Height greater than 72 inches (6 feet) - exceeds length of the litter \& mattress surfaces
* Body weight greater than 300 lbs
* Subjects who find it difficult, uncomfortable or impossible to remain still for the necessary study time durations (20 minute increments) on the relatively narrow litter surfaces will be removed from the study.
* Subject does not speak or understand the English language
Minimum Eligible Age

19 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

David Grant U.S. Air Force Medical Center

FED

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Laurie Migliore

Chief, Nursing Research

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Laurie Migliore, PhD

Role: PRINCIPAL_INVESTIGATOR

David Grant Medical Center

Antoinette Shinn, PhD

Role: PRINCIPAL_INVESTIGATOR

59th Medical Wing

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

David Grant Medical Center

Travis Air Force Base, California, United States

Site Status

Countries

Review the countries where the study has at least one active or historical site.

United States

References

Explore related publications, articles, or registry entries linked to this study.

Bale S, Finlay I, Harding KG. Pressure sore prevention in a hospice. J Wound Care. 1995 Nov;4(10):465-8. doi: 10.12968/jowc.1995.4.10.465.

Reference Type BACKGROUND
PMID: 8548573 (View on PubMed)

Bridges EJ, Schmelz JO, Mazer S. Skin interface pressure on the NATO litter. Mil Med. 2003 Apr;168(4):280-6.

Reference Type BACKGROUND
PMID: 12733671 (View on PubMed)

Hanson DS, Langemo D, Anderson J, Thompson P, Hunter S. Can pressure mapping prevent ulcers? Nursing. 2009 Jun;39(6):50-1. doi: 10.1097/01.NURSE.0000352337.67771.e0. No abstract available.

Reference Type BACKGROUND
PMID: 19474612 (View on PubMed)

International review. Pressure ulcer prevention: pressure, shear, friction and microclimate in context. A consensus document. London: Wounds International, 2010

Reference Type BACKGROUND

Hatzfeld JJ, Dukes S, Bridges E. Chapter 3 innovations in the en route care of combat casualties. Annu Rev Nurs Res. 2014;32:41-62. doi: 10.1891/0739-6686.32.41.

Reference Type BACKGROUND
PMID: 25222537 (View on PubMed)

Harada C, Shigematsu T, Hagisawa S. The effect of 10-degree leg elevation and 30-degree head elevation on body displacement and sacral interface pressures over a 2-hour period. J Wound Ostomy Continence Nurs. 2002 May;29(3):143-8. doi: 10.1067/mjw.2002.123645.

Reference Type BACKGROUND
PMID: 12011906 (View on PubMed)

Junkin J, Gray M. Are pressure redistribution surfaces or heel protection devices effective for preventing heel pressure ulcers? J Wound Ostomy Continence Nurs. 2009 Nov-Dec;36(6):602-8. doi: 10.1097/WON.0b013e3181be282f.

Reference Type BACKGROUND
PMID: 19920740 (View on PubMed)

Provided Documents

Download supplemental materials such as informed consent forms, study protocols, or participant manuals.

Document Type: Study Protocol and Statistical Analysis Plan

View Document

Related Links

Access external resources that provide additional context or updates about the study.

http://www.stryker.com/stellent/groups/public/documents/web_assest/006430.pdf

Strykers' Pioneer (TM) pressure redistributing stretcher surface is the first of its kind for emergency departments

http://www.perimed-instruments.com

PeriFlux System 5000 (instrument version 1.70-1.79) Extended User Manual

https://www.ncbi.nlm.nih.gov/pubmed/8277476

Pressure effects from a military stretcher. J R Army Med Corps

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

FDG20160005H

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.

Lung EIT Image Guide Ventilation in ARDS
NCT07309783 NOT_YET_RECRUITING NA