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Breathing abnormalities during sleep in patients with chronic heart failure
F Yasuma1, H Nomura, H Hayashi
1First Department of Internal Medicine, Nagoya University School of Medicine, Japan.
Japanese Circulation Journal
|December 1, 1989
Summary
Respiratory abnormalities during sleep, including sleep apnea syndrome, are common in chronic heart failure patients. Addressing these issues may improve patient management and outcomes.
Area of Science:
- Cardiology
- Sleep Medicine
- Pulmonology
Background:
- Chronic heart failure (CHF) is a complex condition often associated with various comorbidities.
- Respiratory abnormalities during sleep are increasingly recognized as potential complications in cardiovascular disease.
- The interplay between valvular heart disease, sleep disturbances, and overall CHF management requires further investigation.
Purpose of the Study:
- To investigate the prevalence and characteristics of respiratory abnormalities during sleep in adult outpatients with stable chronic heart failure (CHF) secondary to valvular heart disease.
- To explore the potential association between sleep apnea syndrome (SAS) and CHF severity or specific cardiac conditions.
- To assess the impact of interventions, such as valve replacement, on sleep-disordered breathing in this patient population.
Main Methods:
- Polysomnography was conducted on 11 adult outpatients (6 males, 5 females; age range 54-76 years) diagnosed with stable CHF due to valvular heart disease.
- Sleep patterns and respiratory events were systematically monitored and analyzed.
- Clinical data, including the presence of nasal obstruction and outcomes following interventions like mitral valve replacement, were recorded.
Main Results:
- A significant prevalence of central dominant sleep apnea syndrome (SAS) was identified in 4 male participants.
- Three of the four patients with SAS exhibited evidence of nasal obstruction.
- One patient with central dominant SAS experienced a notable reduction in sleep apnea frequency following successful mitral valve replacement.
Conclusions:
- Respiratory abnormalities during sleep, particularly sleep apnea syndrome, are common in patients with chronic heart failure stemming from valvular heart disease.
- The findings underscore the importance of considering and evaluating sleep-related breathing disorders in the comprehensive management of CHF patients.
- Interventions targeting underlying cardiac issues may positively influence sleep apnea parameters in select CHF patients.
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