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Clinical Trials/NCT01402752
NCT01402752
Withdrawn
N/A

System for Measuring Non-invasive Blood Flow in the Tracheobronchial Mucosa: Validation of Reproducibility

Centre Hospitalier Universitaire de Nīmes0 sitesNovember 2013
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ConditionsHealthy

Overview

Phase
N/A
Intervention
Not specified
Conditions
Healthy
Sponsor
Centre Hospitalier Universitaire de Nīmes
Primary Endpoint
The reproducibility of two measures of Qaw at a five minute interval
Status
Withdrawn
Last Updated
8 years ago
OverviewInvestigatorsEligibility CriteriaOutcomesSimilar Trials

Overview

Brief Summary

The primary objective of this study is to evaluate the reproducibility of a method of measuring blood flow rates to the tracheo-bronchial mucosa using diluted dimethyl ether as a tracer.

Registry
clinicaltrials.gov
Start Date
November 2013
End Date
March 2014
Last Updated
8 years ago
Study Type
Interventional
Study Design
Single Group
Sex
All

Investigators

Sponsor
Centre Hospitalier Universitaire de Nīmes
Responsible Party
Sponsor

Eligibility Criteria

Inclusion Criteria

  • •The patient must have given his/her informed and signed consent
  • •The patient must be insured or beneficiary of a health insurance plan

Exclusion Criteria

  • •The patient is under judicial protection, under tutorship or curatorship
  • •The patient refuses to sign the consent
  • •It is impossible to correctly inform the patient
  • •Patient is pregnant
  • •Patient is breast feeding
  • •The patient is a smoker
  • •The patient has, or has a history of, chronic respiratory insufficiency
  • •The patient has a contra-indication for a treatment necessary in this study

Outcomes

Primary Outcomes

The reproducibility of two measures of Qaw at a five minute interval

Time Frame: Five minutes

Qaw is the blood flow measured in the tracheobronchial mucosa. Qaw = VDME/(FDME\*alpha\*10s) where VDME is the volume of dimethyl-ether exhaled (ml), FDME is the mean concentration of dimethyl-ether (%), alpha is the Bunsen coefficient for the dissolution of dimethyl ether in tissues and blood at 37°C (i.e. 9ml/ml).

Secondary Outcomes

  • The time necessary to complete one measure of Qaw (minutes)(Day 1)

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