Cardio Sleep Review
Dedicated to the Nexus of Cardiology and Sleep Apnea Management
Issue 3,
May
2019
Links between heart disease and sleep disorders have been clearly established, Dr. Patel said. And more links continue to be identified, he said. "We are learning more recently about the relationship between atrial fibrillation (AFib) and central sleep apnea. We all know that congestive heart failure and cardiomyopathy are related to central sleep apnea, but now we know AFib as well," he said.
When the sleep specialist looked at the results of Floyd Rowland's second sleep test, he asked, "How are you even alive?" The at-home sleep test confirmed what the former Marine from Oceanside, California, already suspected: he had severe obstructive sleep apnea (OSA). His Apnea-Hypopnea Index (AHI) was 64, which meant he woke up at least 64 times in an hour and stopped breathing for at least 10 seconds each time.
Sleep disorders, including sleep apnea, are on the rise, posing a significant health issue in the United States. According to the American Sleep Apnea Association, as many as 22 million Americans suffer from sleep apnea – and of those, as many as 80 percent have cases that are moderate to severe but may not know it. Sleep apnea is widely underdiagnosed and severely underreported, according to an analysis of the Sleep Heart Health Study.
Dr. Jeffrey Shanes
Interventional Cardiologist
Among multiple comorbidities, sleep-disordered breathing (SDB), and obstructive sleep apnea (OSA), in particular, are the most common. Almost 50% of patients with HF have alterations of ventilation during sleep that can disrupt the positive effects of physiological sleep on the cardiovascular system. In two studies of patients with HF undergoing polysomnography, OSA was detected in 37% and 11% of patients.
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Cardio Sleep Review
Publisher: Itamar Medical
Editor: Melih Alvo

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