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Right Ventricular Contractile Reserve in HF

NCT05797584 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 60

Last updated 2023-04-04

No results posted yet for this study

Summary

Right ventricle dysfunction and pulmonary hypertension are related to a worse prognosis in patients with heart failure with reduced left ventricular ejection fraction (HFrEF) or with normal left ventricular ejection fraction (HFpEF).

There is preliminary evidence however, that the responses of the right ventricle and of the pulmonary hemodynamics to stress tests (especially physical stress) may allow to prognostically stratify these patients, as these responses may bring out latent right ventricle dysfunction or a normal contractile reserve in patients with dysfunction at rest.

In view of the different pathophysiological mechanisms of the left ventricular dysfunction in HFpEF and in HFrEF, also the response and the adaptation of the righty ventricle to stress tests may be different in these two groups of patients.

In this preliminary two groups of 20 patients with HFpEF and HFrEF will be subjected to to simple stress tests: passive leg raising and inotropic stimulus with dobutamine.

This study intends to analyze, through colorDoppler echocardiography, the behaviour of the right ventricle and the pulmonary circulation during passive leg raining and infusion of dobutamine, in a cohort of patients with HFrEF or HFpEF.

The analysis will be focused on the relation between echocardiographic parameters, especially those concerning right ventricular function and pulmonary hemodynamics, thereby comparing the responses observed in HFrEF vs HFpEF.

Furthermore, correlations between the above-mentioned echocardiographic parameters and parameters of daily clinical practice will be assessed.

Conditions

Interventions

DRUG

Dobutamine

Dobutamine 5.0 - 10.0 mcg/Kg/min ev

OTHER

Passive leg raising

Passive leg raising for acute volume load

Sponsors & Collaborators

  • Istituto Auxologico Italiano

    lead OTHER

Study Design

Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2019-03-20
Primary Completion
2025-03-20
Completion
2026-03-20

Countries

  • Italy

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05797584 on ClinicalTrials.gov