EP168: Angela Hartly Interviewing Dr Warrick Bishop—When We Fix Narrowed Arteries

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 an Australian cardiologist and author passionate about patient education and heart disease prevention. Angela from Healthy Hearties interviews him about common cardiac questions from their heart health group. The episode focuses on stenting procedures, arterial blockages, and strategies for managing multiple coronary lesions. Key Takeaways: Cardiologists typically consider stenting when an artery is narrowed by 70% or more, but must confirm the blockage actually limits blood flow (hemodynamic significance) through stress testing or other functional assessments. The ISCHEMIA trial demonstrated that patients with significant coronary narrowings had similar outcomes over 3-4 years whether they received immediate stents or optimal medical therapy alone, changing how quickly doctors intervene. Stents are more beneficial for relieving angina symptoms than for preventing future cardiac events compared to medical management alone. Patients with stents should take dual antiplatelet therapy (aspirin plus a second antiplatelet agent) and cholesterol-lowering medications to reduce future cardiac events. New PCSK9 inhibitor drugs can lower LDL cholesterol to very low levels and potentially cause plaque regression, though they are expensive and typically reserved for high-risk patients or those with familial hypercholesterolemia. Non-flow-limiting blockages (intermediate lesions) should not be stented, and patients should not worry about them if managing risk factors properly. The foundation of cardiac health after stenting involves controlling cholesterol and blood pressure, regular exercise, healthy eating, and adherence to medications—not rushing into additional interventions. Educated patients achieve the best healthcare outcomes, making patient understanding and engagement critical to long-term cardiac health.