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Sleep Apnea Treatment During Cardiac Rehabilitation of Congestive Heart Failure Patients

2014-08-27 03:13:48 | BioPortfolio

Summary

Sleep disordered breathing (SDB) is a frequent comorbidity for heart failure patients. Its prevalence varies according to the seriousness of the condition of the patients, but it is present in approximately 50% of patients. Screening patients for SDB and managing them by providing adapted ventilation therapy should improve their quality of life or even their prognosis. Moreover, SDB lowers nocturnal cardiovascular recovery abilities and leads to an increase in fatigability and, as a result, exercise intolerance in patients with heart failure. Physical training as part of a cardiac rehabilitation programme provides many benefits, including improving patients' exercise capacities. Our hypothesis is that adapted sleep disordered breathing therapy during rehabilitation will lead to an improvement in rehabilitation results.

Description

Controlled, randomised, multicentre study. Patients will be assessed prior to starting the rehabilitation programme with regard to exercise tolerance parameters (cardiopulmonary exercise test, 6 minute walk test), ultrasound parameters and biological parameters (Na, Hb, BNP).

The cardiac rehabilitation programme will include education, secondary prevention and physical training components in each of the two groups. The physical training component will include a minimal "base" of activities that is identical for both groups. The nocturnal therapy device will be adapted to the type of SDB specific to each patient (central, mixed, obstructive). The randomisation will be stratified by centre according to predictive factors for performance improvement during rehabilitation.

The main objective is to evaluate the improvement in physical performance resulting from adapted ventilation on SDB compared to physical training alone in patients with heart failure.

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Prevention

Conditions

Heart Failure

Intervention

ventilation therapy

Location

Centre Médical de Bligny
Briis sous Forges
France
91640

Status

Not yet recruiting

Source

French Cardiology Society

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:13:48-0400

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Medical and Biotech [MESH] Definitions

A heterogeneous condition in which the heart is unable to pump out sufficient blood to meet the metabolic need of the body. Heart failure can be caused by structural defects, functional abnormalities (VENTRICULAR DYSFUNCTION), or a sudden overload beyond its capacity. Chronic heart failure is more common than acute heart failure which results from sudden insult to cardiac function, such as MYOCARDIAL INFARCTION.

Enlargement of the HEART, usually indicated by a cardiothoracic ratio above 0.50. Heart enlargement may involve the right, the left, or both HEART VENTRICLES or HEART ATRIA. Cardiomegaly is a nonspecific symptom seen in patients with chronic systolic heart failure (HEART FAILURE) or several forms of CARDIOMYOPATHIES.

Respiratory support system used primarily with rates of about 100 to 200/min with volumes of from about one to three times predicted anatomic dead space. Used to treat respiratory failure and maintain ventilation under severe circumstances.

Heart failure caused by abnormal myocardial relaxation during DIASTOLE leading to defective cardiac filling.

Heart failure caused by abnormal myocardial contraction during SYSTOLE leading to defective cardiac emptying.

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