Strain X Cardiopulmonary Test

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

UNKNOWN

Total Enrollment

26 participants

Study Classification

OBSERVATIONAL

Study Start Date

2016-08-31

Brief Summary

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Introduction : Patients with heart failure (HF ) with systolic dysfunction of moderate to severe exhibit significant reduction in the ability to exercise compared to those with mild dysfunction , and have worse prognosis. However, some clinical markers of severity and diagnosis widely used in this population such as ejection fraction (EF) , are not always able to translate the actual degree of cardiac damage as well as their relationship with the cardiorespiratory fitness of these individuals and prognosis .

Objective: To evaluate the ability of the global longitudinal strain ( GLS ) in predicting exercise tolerance in heart failure patients with moderate and significant systolic dysfunction.

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Detailed Description

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Conditions

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Heart Failure

Study Design

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Study Time Perspective

CROSS_SECTIONAL

Eligibility Criteria

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Inclusion Criteria

* moderate and significant systolic dysfunction (LVEF \< 45%) assessed by transthoracic echocardiography recent ( last month before evaluation ) Teichholz method , or when in the presence of contractile deficit target , by the Simpson method.

Exclusion Criteria

* deformity in the face to prevent the coupling of the mask to perform the CPET ,
* orthopedic and neurological diseases that could make it impossible to perform the tests ,
* patients with psychiatric disorders that restricted them to respond to the questionnaire ,
* HF FC IV or hospitalization in the last three months ,
* angina unstable;
* myocardial infarction or heart surgery up to three months before the survey ;
* FEV1 / FVC \<70 % predicted characterizing obstructive respiratory disorder .

Minimum Eligible Age

21 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No