Right Ventricular Function in Patients With Obstructive Sleep Apnea

This study has been completed.
Information provided by:
Associação Fundo de Incentivo à Pesquisa
ClinicalTrials.gov Identifier:
First received: September 13, 2010
Last updated: May 7, 2012
Last verified: June 2010
The purpose of this study is to determine whether patients with obstructive sleep apnea have any changes in right ventricular function evaluated by three dimensional echocardiography.

Obstructive Sleep Apnea

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective
Official Title: Right Ventricular Function in Patients With Obstructive Sleep Apnea Assessed by Real-time Three-dimensional Echocardiography

Resource links provided by NLM:

Further study details as provided by Associação Fundo de Incentivo à Pesquisa:

Enrollment: 106
Study Start Date: June 2007
Study Completion Date: November 2007
Group 1 - Obstructive Sleep Apnea (OSA)
Fifty-six patients with Obstructive Sleep Apnea
Group 2 - Non-OSA Controls
Fifty individuals without OSA with similar age, gender and body mass index (BMI)
Group 3 - Treatment
Fifteen patients with moderate and severe sleep apnea from group 1 underwent treatment with continuous positive airway pressure
Group 4 - Placebo
Fifteen patients with moderate/severe sleep apnea underwent to placebo

Detailed Description:
Several studies have reported the association between sleep disorders to an increased risk to the development of cardiac disease. However, there is no substantial that about the influence of Obstructive Sleep Apnea on the right ventricular function. Objective: to analyse the right ventricular function in patients with Obstructive Sleep Apnea by means of Real-Time Three dimensional Echocardiography.

Ages Eligible for Study:   18 Years to 70 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes
Sampling Method:   Probability Sample
Study Population
Initially, 56 patients with obstructive sleep apnea (OSA) and 50 non-OSA controls underwent real-time three-dimensional echocardiography. 30 Patients with moderate and severe OSA underwent to continuous positive airway pressure treatment over 6 months. Echocardiogram will be repeated on the third and sixth months from the treatment onset.

Inclusion Criteria:

  • Individuals > 18 years old and < 70.

Exclusion Criteria:

  • Body mass index greater than 35
  • Past of clinically significant cardiac conditions
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Please refer to this study by its ClinicalTrials.gov identifier: NCT01201200

Escola Paulista de Medicina
Sao Paulo, Brazil, 04516001
Sponsors and Collaborators
Associação Fundo de Incentivo à Pesquisa
Study Director: Orlando Campos, PhD Escola Paulista de Medicina
  More Information

Responsible Party: Wercules Oliveira, AFIP/Escola Paulista de Medicina
ClinicalTrials.gov Identifier: NCT01201200     History of Changes
Other Study ID Numbers: Eco2 
Study First Received: September 13, 2010
Last Updated: May 7, 2012
Health Authority: Brazil: National Committee of Ethics in Research

Keywords provided by Associação Fundo de Incentivo à Pesquisa:
Obstructive Sleep Apnea
Right Ventricular Function
Pulmonary Hypertension

Additional relevant MeSH terms:
Sleep Apnea Syndromes
Sleep Apnea, Obstructive
Nervous System Diseases
Respiration Disorders
Respiratory Tract Diseases
Signs and Symptoms
Signs and Symptoms, Respiratory
Sleep Disorders, Intrinsic
Sleep Wake Disorders

ClinicalTrials.gov processed this record on May 22, 2016