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The Effect of Continuous Positive Airway Pressure on Diastolic Function in Patients With Obstructive Sleep Apnea

NCT01854398 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 60

Last updated 2017-01-26

No results posted yet for this study

Summary

The association of obstructive sleep apnea (OSA) and cardiac diastolic dysfunction have been reported, and improvement of diastolic function after continuous positive airway pressure (CPAP) in OSA patients was observed. However, more detailed analysis of diastolic function by supine bicycle exercise echocardiography is lacking. The investigators hypothesized that 3 months of CPAP therapy in OSA patients will significantly improve diastolic functional parameters measured by exercise stress echocardiography. Patients with severe OSA (Apnea-hypopnea index \> 30) will be included in this study, and randomized to CPAP versus sham-CPAP group by 1:1 ratio. Supine bicycle exercise echocardiography, pulse wave velocity, 24 hours ambulatory blood pressure (BP), central BP will be checked before and after CPAP therapy and parameters will be compared.

Conditions

Interventions

DEVICE

CPAP group

Enrolled patients are randomized to CPAP group or sham-CPAP group by 1:1 ratio. The patients in each group will undergo CPAP or sham-CPAP for 3 months.

DEVICE

sham-CPAP group

Enrolled patients are randomized to CPAP group or sham-CPAP group by 1:1 ratio. The patients in each group will undergo CPAP or sham-CPAP for 3 months. Sham CPAP consists of a CPAP machine that is modified to include a large hidden leak in the exhaust port of the mask to disperse the therapeutic pressure.

Sponsors & Collaborators

  • Yonsei University

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Model
PARALLEL

Eligibility

Min Age
20 Years
Max Age
75 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2013-05-31
Primary Completion
2016-06-30
Completion
2016-06-30

Countries

  • South Korea

Study Locations

More Related Trials

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 NCT01854398 on ClinicalTrials.gov