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NCT02315859

Validation of New Non-Invasive Parameters of Diastolic Suction in the Left Ventricle

Completed Last updated 28 March 2023
What this trial tests

trial in Diastolic Heart Failure in 40 participants. Completed in 30 June 2017.

Timeline
31 December 2014
Primary endpoint
31 December 2016
30 June 2017

Quick facts

Lead sponsorInsel Gruppe AG, University Hospital Bern
StatusCompleted
Study typeOBSERVATIONAL
Enrollment40
Start date31 December 2014
Primary completion31 December 2016
Estimated completion30 June 2017
Sites1 location across Switzerland

Conditions studied

Sponsor

Insel Gruppe AG, University Hospital Bern

Who can join

18 and older, any sex, with Diastolic Heart Failure. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

It is known that, at the end of the cardiac ejection period, potential energy is stored in elastic fibers of the heart, which promotes the suction of blood from the atria during early filling. The investigators have developed a new ultrasound-based method to quantify this suction effect. Here, it is necessary to reduce the complex 3-dimensional cardiac mechanics in a 1-dimensional (piston-like) pump system. In the study, several steps of model reduction will be tested. Each reduction is intended to allow non-invasive measurements to become increasingly simple and feasible at reduced echo quality. The reference method is the invasive data obtained from a pressure-volume conductance catheter. To increase the supply of potential energy in the elastic fibers, a substance (dobutamine) is administered for transient strengthening of the force of contraction. Hypothesis: There is a good agreement between the new, non-invasive parameters and the invasive reference method for the quantification of the suction effect of the left ventricle, and the good correlation persists even with increasing model simplification.

Publications & conference data

No peer-reviewed publications indexed yet for this trial. Completed trials usually publish results within 12-18 months.

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Other recruiting trials for Diastolic Heart Failure

Currently open trials in the same condition.

Other Insel Gruppe AG, University Hospital Bern trials

Trials by the same sponsor.

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Data sources for this page

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