Regulation of Pharyngeal Muscle Contraction - SCOR in Cardiopulmonary Disorders of Sleep

Lung Diseases Clinical Trial

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT00005320
• Other study ID #: 4097
• Secondary ID: P50HL042215-10
• Status: Completed
• Phase: N/A
• First received: May 25, 2000
• Last updated: September 27, 2016
• Start date: September 1988
• Est. completion date: August 1998

Study information

• Verified date: March 2005
• Source: National Heart, Lung, and Blood Institute (NHLBI)
• Contact: n/a
• Is FDA regulated: No
• Health authority: United States: Federal Government
• Study type: Observational

Clinical Trial Summary

To determine the degree to which neuro-psychological performance and general health status and function may be impaired in subjects with mild and moderate degrees of sleep-related respiratory disturbances (SRRD), as compared to subjects with minimal apneic activity. Also, to assess the degree to which improvement may occur following specific treatment.

Description:

BACKGROUND:

The study was a subproject in a Specialized Center of Research in the Cardiopulmonary Disorders of Sleep. Frequent sleep-related respiratory disturbances (SRRD) have been recognized to occur in as many as 70 percent of elderly and 15 percent of middle-aged subjects. Although it is widely agreed that subjects with obvious daytime sleepiness that occurs in association with severe obstructive sleep apnea (Respiratory disturbance indices (RDI) >30) benefit from treatment of their sleep disorders; there is no consensus (and a paucity of data) regarding treatment benefits in subjects with a less profound disorder. Rational utilization of health care resources for diagnosis and treatment of sleep apnea requires assessment of whether adverse health effects occur as a consequence of mild or moderate levels of SRRD, and whether any such health effects may be reversible with treatment.

DESIGN NARRATIVE:

The neuropsychological performance, sleepiness and general functional status were evaluated in 330 subjects, including subjects with little apneic activity (RDI<5), mild activity (RDI 5-14), and moderate activity (RDI 15-25). Of these subjects, 75 percent were selected from a clinic-based sample, and 25 percent were recruited from an ongoing population-based study. 150 subjects with mild and moderate activity were randomized to receive 'conservative' medical therapy (CMT) or CMT plus nasal continuous positive air pressure (CPAP) therapy. Simple statistics, as well as multivariate techniques, were used to determine the relationship between SRRD (and associated hypoxemia, sleep fragmentation, and physiological sleepiness) to: a) intellectual abilities, attention and vigilance, psychomotor performance, learning and memory, and executive functions, and b) to general health status and function. Potential benefits of treatment specific for sleep apnea in subjects with mild and moderate SRRD were also determined after two months of CPAP therapy.

The study completion date listed in this record was obtained from the "Completed Date" entered in the Query View Report System (QVR).

Recruitment information / eligibility

• Status: Completed
• Enrollment: 0
• Est. completion date: August 1998
• Accepts healthy volunteers: No
• Gender: Male
• Age group: N/A to 100 Years
• Eligibility: No eligibility criteria

Study Design

N/A

Related Conditions & MeSH terms

• Lung Diseases
• Sleep Apnea Syndromes

Locations

Country	Name	City	State
n/a

Sponsors (1)

Lead Sponsor	Collaborator
National Heart, Lung, and Blood Institute (NHLBI)

References & Publications (6)

Adams N, Strauss M, Schluchter M, Redline S. Relation of measures of sleep-disordered breathing to neuropsychological functioning. Am J Respir Crit Care Med. 2001 Jun;163(7):1626-31. — View Citation

Briones B, Adams N, Strauss M, Rosenberg C, Whalen C, Carskadon M, Roebuck T, Winters M, Redline S. Relationship between sleepiness and general health status. Sleep. 1996 Sep;19(7):583-8. — View Citation

Redline S, Adams N, Strauss ME, Roebuck T, Winters M, Rosenberg C. Improvement of mild sleep-disordered breathing with CPAP compared with conservative therapy. Am J Respir Crit Care Med. 1998 Mar;157(3 Pt 1):858-65. — View Citation

Redline S, Strauss ME, Adams N, Winters M, Roebuck T, Spry K, Rosenberg C, Adams K. Neuropsychological function in mild sleep-disordered breathing. Sleep. 1997 Feb;20(2):160-7. — View Citation

Redline S, Strohl KP. Recognition and consequences of obstructive sleep apnea hypopnea syndrome. Clin Chest Med. 1998 Mar;19(1):1-19. Review. — View Citation

Strohl KP, Redline S. Recognition of obstructive sleep apnea. Am J Respir Crit Care Med. 1996 Aug;154(2 Pt 1):279-89. Review. — View Citation