EP196: Funny Valve and Big Aorta

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 Summary Introduction Dr. Warrick Bishop is a practicing cardiologist and author dedicated to improving patient care through heart health education. In this episode, he provides a comprehensive overview of bicuspid aortic valve disease, explaining what it is, how it develops, and how it's managed. He emphasizes that educated patients receive the best healthcare outcomes and discusses both the valve condition and the associated aortopathy (aortic dilation) that can occur. Key Takeaways: A bicuspid aortic valve is a congenital condition where the aortic valve has two leaflets instead of the normal three, making it the most common congenital cardiac abnormality. Bicuspid aortic valves function in an unbalanced manner similar to an engine running on three cylinders instead of four, causing premature wear and tear compared to normal tricuspid valves. The condition is typically not apparent until mid to late adulthood (40s-60s) when the valve begins to deteriorate, though it can be detected earlier through family history screening, heart murmurs, or incidental imaging. An aortopathy (weakened aorta with dilated connective tissue) frequently accompanies bicuspid aortic valve disease, which is a critical concern because severe dilation can lead to life-threatening rupture or dissection. Blood pressure management using ACE inhibitors (like perindopril and ramipril) and angiotensin receptor blockers (like candesartan and valsartan) effectively slow aortic dilation beyond their blood pressure-lowering effects. Surveillance using ultrasound and CT imaging is essential, with CT scans providing accurate aortic measurements; aortic replacement is typically considered when diameter reaches 45 millimeters (normal is 35-38 millimeters). Treatment options depend on severity: valve-only replacement, aorta-only repair, or combined valve and aorta surgery; valve replacement can be performed via open heart surgery or transcutaneous aortic valve implantation (TAVI). Family screening is strongly recommended because bicuspid aortic valve is genetic, and early detection with proper management allows patients to maintain near-normal life expectancy without significantly compromised health outcomes.