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Does Circumferential Negative Pressure Therapy Impair Distal O2 Saturation?

NCT03512444 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 13

Last updated 2018-10-26

No results posted yet for this study

Summary

Abstract:

Background: Circumferential negative pressure wound therapy (CNPWT) is commonly used to manage wounds and enhance the healing process. A theoretical concern was recently raised that CNPWT may have a negative effect on perfusion distally. Objectives: We aim to evaluate the effect of circumferential negative pressure therapy (CNPT) on distal O2 saturation in healthy volunteers. Design: Randomized controlled non-inferiority study. Methods: Fourteen healthy adult volunteers with O2 saturation ≥95% (by index finger pulse oximetry) will be invited to participate in the study. After obtaining a written informed consent, CNPWT foam/dressing will be applied in a sandwich-like manner on the middle third of each arm and a negative intermittent pressure of 125 mmHg will be applied to one arm chosen randomly, using the contralateral arm as control. The pressure will be applied 5 minutes on and 2 minutes off for 9 hours. Individual's participation will be terminated if O2 saturation drops below 92% at any study time. The outcome measure is index finger O2 saturation and will be checked every 30 minutes using a pulse oximetry. The area under the curve (AUC) of O2 saturation in the 2 arms will be compared using ANCOVA. Sample size was calculated to have 90% power, assuming a type one error of 5%, non-inferiority margin of 24 (mean AUC difference), SD of 20, and drop out of 2 participants. Importance: The study is expected to provide conclusive evidence on the effect of intermittent CNPT on distal O2 saturation. The results would have direct implications for CNPWT.

Conditions

  • Negative Pressure Wound Therapy
  • Wound

Interventions

DEVICE

Negative Pressure System

Negative Pressure System is a non-invasive system that applies sub-atmospheric(Negative) pressure, through a foam and an air-tight film dressing which is connected by suction tubes to a controller unit by which the primary negative pressure can be adjusted.

Sponsors & Collaborators

  • Ahmed Aljomah

    lead OTHER

Principal Investigators

  • Muhammad M Hammami, MD, PHD · King Faisal Specialist Hospital & Research Center

  • Ahmed S Aljomah, MD · King Faisal Specialist Hospital & Research Center

Study Design

Allocation
RANDOMIZED
Purpose
OTHER
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
60 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2018-07-25
Primary Completion
2018-09-04
Completion
2018-09-04
FDA Device
Yes

Countries

  • Saudi Arabia

Study Locations

More Related Trials

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03512444 on ClinicalTrials.gov