Study by 2D-strain of the Ventricular Wall Motion During Postnatal Adaptation

NCT ID: NCT03654430

Last Updated: 2018-12-12

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

36 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-04-03

Study Completion Date

2018-08-24

Brief Summary

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The left ventricular torsion during systole and diastole is a normal dynamic mechanism which participates in the ejection and the filling of the left ventricle. Postnatal hemodynamic modifications are major and probably affect this mechanism. The aim of this study is to compare the left ventricular twist in healthy newborns, between their first days of life and their third month of life, using the 2D-speckle tracking echocardiography.

Detailed Description

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The left ventricular torsion during systole and diastole is a normal dynamic mechanism which participates in the ejection and the filling of the left ventricle. Postnatal hemodynamic modifications are major and probably affect this mechanism.

The main objective is to compare the left ventricular twist mechanism in healthy newborns, at birth and at their third month of life, using the peak LV twist as primary endpoint. Secondarily, we compare other LV rotation and deformation parameters during the same period: peak LV torsion, peak LV twist rate, peak LV untwist rate, circumferential strain and radial strain. Finally, we compare the endo- and epicardial LV deformation, using the inner and outer circumferential strain as endpoints.

This is a longitudinal, prospective and monocentric study in the Grenoble-Alpes University Hospital between April 2018 and September 2018.

The number of required subjects is 30 with a statistical power of 80% and a p-value of 0,05

Conditions

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Healthy

Keywords

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Left ventricular Twist 2D-speckle-tracking Postnatal adaptation

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

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Healthy Newborns

Group Type OTHER

Echocardiography

Intervention Type OTHER

Two echocardiographies will be performed in healthy newborns: The first between day 2 and day 5 of life, the second between day 60 and day 90 of life

Interventions

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Echocardiography

Two echocardiographies will be performed in healthy newborns: The first between day 2 and day 5 of life, the second between day 60 and day 90 of life

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Newborn hospitalized in the Grenoble University Hospital Maternity Unit
* Aged between 2 and 5 day of life at the first echocardiography
* Social security affiliation
* Signature of the consent document by both parents

Exclusion Criteria

* Birth before 37 weeks gestation
* Birth weight \< 2,5kg or \> 4,5kg
* Gestational Diabetes Mellitus during pregnancy
* Fetal heart disease
Minimum Eligible Age

2 Days

Maximum Eligible Age

5 Days

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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TIMC-IMAG

OTHER

Sponsor Role collaborator

University Hospital, Grenoble

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Johanne Auriau

Grenoble, , France

Site Status

Countries

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France

Other Identifiers

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38RC18.014

Identifier Type: -

Identifier Source: org_study_id