An interventional study of Simple breathing manuevers during brief echocardiographic imaging in Healthy, sponsored by Umeå University. Completed at 1 site in Sweden. Open to participants aged 18 Years to 70 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2019-04-22.
Sponsored by Umeå University · Not applicable, Interventional, and Diagnostic
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.
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.
Exclusion Criteria:
All subjects perform/undergo Valsalva, Muller, CPAP, hand grip, and passive leg raise, with ultrasound examination of heart recorded before and during the manoeuvre.
Other: Simple breathing manuevers during brief echocardiographic imaging
Valsalva, Muller, light mask CPAP, leg raising, hand grip.
Change in atrial wall stress during breathing manoeuver, compared to control measurement immediately before the breathing manoeuver
Echocardiographic measure, comparing control measurement to measurement during breathing manoeuver
Time frame: 30 seconds, i.e. control measurement and then measurement during breathing manoeuver observed from same breathing/measurement sequence
This study is completed, as verified in Feb 2018. You cannot join it, but the record below documents what was studied.
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Umeå University