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Several studies have shown that patients with congestive heart failure (CHF) often suffer from the complication of sleep-disordered breathing (SDB), including Cheyne–Stokes respiration with central sleep apnea (CSR-CSA) as well as obstructive sleep apnea (OSA). These two types of SDB often coexist in such cases. CSR-CSA is characterized by cyclical recurrence of central apneas and hyperpneas with...
Prolonged P-wave duration, indicating atrial conduction delay, is a marker of left atrial abnormality and is reported as a potent precursor of atrial fibrillation (AF). Several studies have shown that obstructive sleep apnea (OSA) is associated with AF. We evaluated the relationship between OSA and prolonged P-wave duration. Consecutive subjects who underwent overnight polysomnography and showed a...
We report a patient with transient advanced atrioventricular (AV) block induced by obstructive sleep apnea (OSA). This 54-year-old man was diagnosed as having severe OSA and AV block with ventricular asystole for more than 6 s during overnight polysomnography, which occurred just from the onset of OSA before oxygen desaturation had occurred. An electrophysiological study revealed normal AV conduction...
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