Differing relationship of nocturnal fluid shifts to sleep apnea in men and women with heart failure.

Differing Relationship of Nocturnal Fluid Shifts to Sleep Apnea in Men and Women with Heart Failure Kasai et al: Fluid Shift and OSA in Women with HF

Probability of obstructive sleep apnea in male patients with systolic heart failure and some related factors

Background and Purpose: Sleep breathing disorders have a negative impact on the illness outcome and quality of life in patients with heart failure. This study was conducted to investigate the probability of obstructive sleep apnea in men with heart failure and some related factors. Method: This was a cross-sectional study conducted on 100 male patients with systolic heart failure selected throu...

Fluid Shifts in Heart Failure Might Cause Sleep Apnea Nocturnal Rostral Fluid Shift: A Unifying Concept for the Pathogenesis of Obstructive and Central Sleep Apnea in Men

Methods: 57 men with stable HF, NYHA class I to III, and ejection fraction (EF) ≤45 were studied. Leg fluid volume (LFV) was measured by bioelectric impedance; right calf and neck circumference were measured (with lines drawn to ensure consistency) before and after sleep. Patients with predominant OSA (≥ 50% obstructive events) and apnea-hypopnea index (AHI) ≥15 were offered continuous positive...

Rostral overnight fluid shift in end-stage renal disease: relationship with obstructive sleep apnea.

BACKGROUND In both healthy male subjects and men with heart failure, the severity of obstructive sleep apnea (OSA) is related to the amount of fluid displaced from their legs into the neck overnight. Whether overnight rostral fluid shift contributes to the pathogenesis of OSA in patients with end-stage renal disease (ESRD) is unknown. We hypothesized that the change in neck circumference (NC) a...

Heart Failure Nocturnal Rostral Fluid Shift A Unifying Concept for the Pathogenesis of Obstructive and Central Sleep Apnea in Men With Heart Failure

Background—Obstructive sleep apnea (OSA) and central sleep apnea are common in patients with heart failure. We hypothesized that in such patients, severity of OSA is related to overnight rostral leg fluid displacement and increase in neck circumference, severity of central sleep apnea is related to overnight rostral fluid displacement and to sleep PCO2, and continuous positive airway pressure a...