Status:

UNKNOWN

Atelectasis Formation: Role of Positive Pressure Breathing, Hyperoxia, and Hypobaria

Lead Sponsor:

Direction Centrale du Service de Santé des Armées

Collaborating Sponsors:

Uppsala University Hospital

Percy Hospital

Conditions:

Pulmonary Atelectasis

Eligibility:

MALE

25-45 years

Phase:

NA

Brief Summary

The primary aim of this project is to get further knowledge of the physiology of flight atelectasis and its prevention. We seek to: 1) assess whether low levels of positive pressure breathing can prev...

Detailed Description

The effect of positive pressure breathing on lung function is being studied, when applied during exposure to hyperoxia and +Gz-accelerations. Focus is on lung tissue compression, ventilation and regio...

Eligibility Criteria

Inclusion

  • Inclusion Criteria:
  • normal lung function checked by pulmonary function tests.
  • normal ECG
  • normal clinical examination
  • Aim 1 exclusion criteria:
  • smoking
  • myopia
  • past medical history of heart or lung disease
  • current medical treatment for heart or lung disease
  • past medical history of back pain or spine trauma or disease
  • otitis
  • bad tolerance to +Gz accelerations (G-induced loss of consciousness, motion sickness)
  • claustrophobia in the centrifuge gondola
  • Aim 2 exclusion criteria:
  • smoking
  • past medical history of heart or lung disease
  • current medical treatment for heart or lung disease
  • otitis
  • bad tolerance to the altitude chamber (15,000 ft): ear pain, claustrophobia

Exclusion

    Key Trial Info

    Start Date :

    September 14 2015

    Trial Type :

    INTERVENTIONAL

    Allocation :

    ESTIMATED

    End Date :

    January 1 2020

    Estimated Enrollment :

    80 Patients enrolled

    Trial Details

    Trial ID

    NCT03311347

    Start Date

    September 14 2015

    End Date

    January 1 2020

    Last Update

    May 14 2019

    Active Locations (2)

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    Page 1 of 1 (2 locations)

    1

    Armed Forces Biomedical Research Institute

    Brétigny-sur-Orge, France, 91 223

    2

    Department of Radiology, Percy hospital

    Clamart, France, 92140