MedTrace Logo

The Role of Oxidative Stress in the Cardiovascular Consequences of Sleep Apnea

NCT00701441 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 25

Last updated 2013-10-30

Study results available
· View outcomes & findings →

Summary

Obstructive Sleep Apnea (OSA) is the most common sleep disorder affecting up to 9-24 percent of middle aged adults, and is becoming increasingly implicated in the pathogenesis of hypertension, and other cardiovascular disorders. Up to half of patients with OSA have hypertension, and their risk of developing hypertension increases with the increasing severity of Sleep Apnea. Patients with OSA and no hypertension have endothelial dysfunction, which is believed to be the precursor for most cardiovascular disorders.

The upper airway collapse and obstruction that occur in OSA result in a pattern of intermittent hypoxia, that has been shown to be the cause of the hypertension, and endothelial dysfunction found in patients with OSA. Intermittent hypoxia results in oxidative stress, which in turn is linked to the pathogenesis of hypertension and endothelial dysfunction.

This protocol evaluates the role of the oxidative stress in endothelial function and blood pressure in patients with OSA. This is a pilot clinical study that will compare oxidative stress parameters, and endothelial function in patients with OSA before starting treatment with continuous positive airway pressure (CPAP) and 12 weeks post being on CPAP. These patients will be compared to control patients with no history of OSA. the study does not involve assignement to different treatments. All patients will receive the indicated treatment for OSA and measurements will be collected before and 12 weeks after adequate treatment.

Conditions

Sponsors & Collaborators

  • Rami Khayat

    lead OTHER

Principal Investigators

  • Rami Khayat, MD · Ohio State University

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2007-02-28
Primary Completion
2010-06-30
Completion
2010-06-30

Countries

  • United States

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 NCT00701441 on ClinicalTrials.gov