Trials / Completed
CompletedNCT03436030
Atrial and Ventricular Wall Stress During Breathing
Atrial and Ventricular Wall Stress, Effects of Breathing and Airway Pressure
- Status
- Completed
- Phase
- N/A
- Study type
- Interventional
- Enrollment
- 40 (actual)
- Sponsor
- Umeå University · Academic / Other
- Sex
- All
- Age
- 18 Years – 70 Years
- Healthy volunteers
- Accepted
Summary
Healthy reclining adult volunteers, with Valsalva manoeuver, Muller manoeuver, light continuous positive airway pressure by mask, passive leg raising, and maximal hand-grip. Ultrasound heart images captured before and during.
Detailed description
With focus on atrial wall strain and strain-rate, In healthy volunteer adult subjects, heart ultrasound is recorded during resting, Valsalva manoeuver, Muller manoeuver, passive leg raising, and handgrip. Echocardiographic recordings are made before and during each intervention. Participants are otherwise resting in a reclined position.
Conditions
Interventions
| Type | Name | Description |
|---|---|---|
| OTHER | Simple breathing manuevers during brief echocardiographic imaging | Valsalva, Muller, light mask CPAP, leg raising, hand grip. |
Timeline
- Start date
- 2017-11-18
- Primary completion
- 2018-04-30
- Completion
- 2018-04-30
- First posted
- 2018-02-19
- Last updated
- 2019-04-22
Locations
1 site across 1 country: Sweden
Source: ClinicalTrials.gov record NCT03436030. Inclusion in this directory is not an endorsement.