Samuel L Krachman

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Cheyne-Stokes respiration (CSR) is a form of sleep-disordered breathing seen in approximately 40% of congestive heart failure patients with a left ventricular ejection fraction of < 40%. It is characterized by a crescendo-decrescendo alteration in tidal volume separated by periods of apnea or hypopnea. Sleep is generally disrupted, often with frequent(More)
BACKGROUND Many patients with chronic obstructive pulmonary disease (COPD) suffer from poor sleep quality. We hypothesized that poor sleep quality in otherwise stable patients predicted exacerbations in these patients. METHODS This is a secondary analysis of the results of a previously published randomized trial of azithromycin in 1,117 patients with(More)
Purpose. We hypothesized that socioeconomic factors and a language barrier would impact adherence with continuous positive airway pressure (CPAP) among Hispanics with obstructive sleep apnea (OSA). Methods. Patients with OSA who were prescribed CPAP for at least 1 year and completed a questionnaire evaluating demographic data, socioeconomic status, and CPAP(More)
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