EP300: Dangers of Obstructive Sleep Apnoea

Welcome to my podcast. I am Doctor Warrick Bishop, and I want to help you to live as well as possible for as long as possible. I’m a practising cardiologist, best-selling author, keynote speaker, and the creator of The Healthy Heart Network. I have over 20 years as a specialist cardiologist and a private practice of over 10,000 patients. Podcast Episode Summary Introduction: Dr. Rick Bishop, a cardiologist, author, and CEO of the Healthy Heart Network, hosts this episode dedicated to obstructive sleep apnea (OSA) at the request of a listener. The episode explores this common condition affecting approximately 20 million adults in the United States, explaining its causes, symptoms, diagnosis, and treatment options to help listeners understand and address this potentially serious health issue. Key Takeaways: Obstructive sleep apnea occurs when throat muscles relax during sleep, causing partial or complete airway blockage, and affects tens to hundreds of thousands of Australians. Major risk factors include obesity, age, family history, and male sex, though postmenopausal women experience increased incidence as they age. Common symptoms include loud snoring, choking, gasping, and most significantly, excessive daytime sleepiness, which poses serious safety risks for activities like driving. A polysomnograph sleep test is the gold standard for diagnosis, measuring heart rate, respiratory rate, and oxygen saturation to classify severity as mild (5-15 apneic episodes), moderate (15-30), or severe (>30 per night). Untreated obstructive sleep apnea significantly increases risks of high blood pressure, heart disease, stroke, type 2 diabetes, and increases cardiovascular death risk by five times. Initial treatment focuses on lifestyle modifications including weight loss, sleeping on your side rather than your back, and avoiding alcohol before bedtime. CPAP (Continuous Positive Airway Pressure) therapy is the primary treatment, capable of reducing daytime sleepiness by up to 70% when used consistently. Proper machine fit and comfort are critical for long-term CPAP compliance, as poorly fitting devices lead to abandonment of therapy. Anyone experiencing symptoms or whose partner reports breathing pauses during sleep should seek evaluation, particularly if experiencing daytime somnolence and concentration difficulties.