An observational study in Congestive Heart Failure, sponsored by University of Sao Paulo. Completed. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2010-01-13.
Sponsored by University of Sao Paulo · Observational
The investigators prospectively evaluated 89 consecutive outpatients (29 female) with stable congestive heart failure. The presence of sleep disordered breathing (SDB) and Cheyne-Stokes respiration (CSR) while awake were investigated by overnight polysomnography. Males and females were similar in age, body mass index, and LVEF. Prevalence of SDB was higher in males than females. During follow up of 25±10 months, 27% of the population died. Nonsurvivors had lower LVEF (p=0.01), worse NYHA class (p=0.03) a higher proportion of CSR-awake (p\<0.001) than survivors.
Bakground: There is little information in sleep disordered breathing (SDB) in women with congestive heart failure (CHF). We studied consecutive CHF patients in order to compare SDB characteristics according to gender, and to determine overall mortality impact of SDB and Cheyne-Stokes respiration (CSR) while awake.
Methods: Eighty nine consecutive outpatients (29 female) with stable CHF (LVEF\<45%) were prospectively evaluated. The presence of SDB, as characterized by obstructive sleep apnea (OSA) and CSR during sleep, as well as CSR while awake before sleep onset, were investigated by overnight polysomnography.
5,803 studies on the registry are indexed under Heart Failure; 1,222 are open to participants now.
This study's enrollment of 89 is below the median of 200 across 1,719 observational studies indexed under Heart Failure.
Browse Heart Failure studies →University of Sao Paulo is the lead sponsor of 1,030 studies on the registry; 92 are open to participants now.
Of its 8 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.
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Consecutive patients with CHF recruited from the outpatient Heart Failure Unit of the Heart Institute (Instituto do Coraçao do Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo)
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Exclusion Criteria:
Congestive Heart Failure Patients
Other: Polysomnography
examination for sleep disorders
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The record gives a start of Nov 2001 and a completion of Mar 2004. It does not say whether these dates are actual or estimated.
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This study is completed, as verified in May 2007. You cannot join it, but the record below documents what was studied.
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