Heart Attacks are Preventable!

EP48: Can We Reverse Coronary Artery Disease?

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. Episode Summary Introduction: Dr. Warwick Bishop is a practicing cardiologist and author dedicated to educating patients about heart health. In this episode, he discusses whether coronary artery disease can be reversed, sharing two compelling patient cases that demonstrate the real-world effectiveness of aggressive cholesterol management and lifestyle modifications in reducing arterial plaque. Key Takeaways: Coronary artery disease plaque can actually regress and be reversed through aggressive cholesterol management, statins, and other pharmaceutical interventions combined with lifestyle changes. Peter's case demonstrates significant plaque regression in his left main artery over several years of compliant cholesterol-lowering therapy, to the point where his native artery may now be supplying more blood flow than his bypass graft. Aggressive intervention and monitoring for cardiovascular risk is beneficial even before symptoms appear, as demonstrated by Phil's preventive care approach when soft plaque was detected during routine screening. Soft (non-calcific) plaque is the most dangerous type because it can rupture, making its reduction through treatment a major health victory. Calcified plaque, while indicating disease presence, is actually a marker of stability and represents a positive transformation when soft plaque converts to calcium through treatment. Educated, compliant patients who maintain target cholesterol levels consistently see better outcomes and can actually reverse the arterial disease process. Cholesterol-lowering medications like statins and ezetimibe, when combined with proper diet, exercise, and triglyceride management, have proven effectiveness in clinical practice beyond just theoretical studies. Regular follow-up imaging (CT scans, angiograms) allows doctors to monitor plaque progression and adjust treatment targets as guidelines evolve and improve. Read more

EP47: Beating The Same Old Drums

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. Episode 47: Beating The Same Old Drums - Summary Dr. Warwick Bishop is a practicing cardiologist and author dedicated to improving patient care through heart health education. In this episode, he passionately addresses two recurring frustrations from his clinical practice: patients who don't know their medications and those who unilaterally stop taking prescribed drugs without consulting their doctor. Through real patient examples, Dr. Bishop emphasizes the critical importance of medication awareness and informed decision-making in cardiac care. Key Takeaways: Patients should maintain an up-to-date written list of all medications and keep it in their wallet for emergencies and medical consultations. Not knowing what medications you're taking prevents doctors from accurately diagnosing medication side effects and making informed treatment decisions. Pharmacy staff can be valuable resources for obtaining clear, accurate medication lists that patients can carry with them. Medication lists can be lifesaving in emergency situations when patients are unable to communicate their medical history themselves. Preventative medications like statins don't produce noticeable daily effects, making patients question their necessity—but they work to extend lifespan over time. Patients should never unilaterally stop medications based on social media, anecdotal neighbor experiences, or general information that doesn't account for their specific clinical situation. Open dialogue between patients and doctors about medication concerns is essential before making any changes to prescribed treatments. Doctors prescribe medications based on careful risk-benefit analysis tailored to individual patient circumstances, not arbitrary decisions. Patient education about the difference between symptom-relieving drugs and preventative drugs can improve medication compliance and long-term health outcomes. Medical decisions should be collaborative, informed discussions between healthcare providers and patients rather than unilateral patient choices. Read more

EP46: Responding To A Facebook Group Question About Calcification

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 Dr. Warrick Bishop is a practicing cardiologist and author dedicated to patient education in heart health, hosting this podcast to help people understand cardiovascular concepts. In this episode, he addresses multiple questions from his Facebook community about vascular and cardiac terminology, breaking down complex medical concepts related to arterial disease, calcification, and treatment options. Key Takeaways: Calcification is a marker of plaque buildup in arteries, where calcium binds to cholesterol deposits and can be used to detect atherosclerosis in the heart and other arteries Claudication refers to burning or cramping pain in the legs during exercise, caused by narrowed arteries restricting blood flow—essentially "angina of the legs" A bypass is a surgical procedure using another vessel (conduit) to route blood around a blocked or diseased artery segment, from a healthy area before the blockage to a healthy area after it Bypass grafts in the heart typically use veins from the legs, arteries from the arm, or arteries from inside the chest wall, while leg bypasses may use synthetic Dacron material Angioplasty is a procedure that opens narrowed arteries by inflating a balloon, which deploys a stent that acts as a scaffold to keep the artery open Modern angioplasty differs from older techniques by combining balloon inflation with stent deployment in a single procedure rather than using balloons in isolation A calcified aorta indicates plaque buildup within the aortic wall and suggests potential disease, loss of elastic tissue, and possible enlargement of the aorta Read more

EP45: Weight And Fidgeting

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. EP45: Weight And Fidgeting - Summary Dr. Warwick Bishop is a practicing cardiologist and author dedicated to patient education about heart health. In this episode, he discusses key insights from the Australian Atherosclerosis Society meeting, focusing on the relationship between weight management, blood pressure, and exercise on cardiovascular health. The episode emphasizes practical lifestyle changes that can significantly reduce cardiovascular risk. Key Takeaways: One kilogram of weight loss results in approximately one millimeter of mercury reduction in blood pressure, making weight management a direct lever for blood pressure control. Losing 5 to 10 kilograms of weight provides health benefits comparable to taking blood pressure medication. A 10-kilogram weight loss for overweight or obese individuals produces a 20-25% relative risk reduction in cardiovascular events. Prolonged periods of sitting are closely linked with worse health outcomes and metabolic dysfunction, regardless of exercise habits. Breaking up sedentary time by moving around every 15-30 minutes makes a significant difference in cardiovascular health and metabolism. Fidgeting and small movements like bouncing your legs while sitting can provide metabolic benefits by burning energy and altering metabolism. Weight management should be an ongoing priority—preventing weight gain is easier than losing weight after it accumulates. Different fitness levels require different exercise approaches, but movement is beneficial for people at all weights and fitness levels. Read more

EP44: Clots And Drugs

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. Summary: EP44 - Clots And Drugs Dr. Warwick Bishop is a practicing cardiologist and author dedicated to educating patients about heart health. In this episode, he responds to a Facebook question about blood-thinning medications, specifically warfarin and Prasugrel, by explaining how different drug classes work to prevent clot formation in the body. The episode provides a foundational understanding of antiplatelet agents versus anticoagulants and when each type is used. Key Takeaways: Clot formation in the body is driven by two main mechanisms: platelets (small sticky blood components) and the coagulation cascade (proteins that form clots) Antiplatelet drugs like aspirin, clopidogrel, ticagrelor, and Prasugrel prevent platelets from clumping together and are primarily used in the arterial system, such as in stents and for coronary artery disease Anticoagulant drugs work by thinning the blood through the coagulation cascade and are used to affect the proteins involved in clot formation Warfarin is the historically most widely used anticoagulant, but newer alternatives called NOACs (non-vitamin K dependent oral anticoagulants) have entered the market with different mechanisms of action The three main NOAC medications currently available are rivaroxaban (Xarelto), dabigatran (Pradaxa), and apixaban (Eliquis) NOACs target specific parts of the coagulation cascade differently than warfarin, offering patients alternative blood-thinning options Understanding which drug class addresses platelets versus proteins in clot formation helps patients and doctors select appropriate treatments for their specific conditions Read more

EP43: Small Dense And Light Fluffy Particles

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. Episode Summary Dr. Warwick Bishop, a practicing cardiologist and author focused on heart health education, discusses findings from the European Atherosclerosis Society conference in Brisbane regarding LDL cholesterol particle size and density. The episode challenges the popular assumption that large fluffy LDL particles are dramatically safer than small dense particles simply based on their size difference. Key Takeaways: Endothelial pores in arteries are approximately 70 microns in diameter, while large fluffy LDL particles are about 50 microns and small dense particles are about 40 microns—a relatively modest difference of only 10 microns. The critical distinction between particle types lies in their density, not just diameter, with density differences related to the radius cubed (radius³), which creates a much more significant difference than the small diameter variance. The actual size difference between large fluffy and small dense particles (10 microns) may not be the major determining factor in whether particles penetrate artery walls, suggesting the conventional narrative oversimplifies the issue. Favoring large fluffy particles remains beneficial because they correlate with a healthier metabolic environment: lower insulin levels, lower triglycerides, and higher HDL cholesterol. Maintaining triglyceride levels below 1.1-1.3 millimoles per liter effectively shifts the LDL particle profile from small dense to large fluffy particles. Reducing carbohydrate intake is key, as carbohydrates drive insulin production, which directly promotes small dense LDL formation while simultaneously lowering HDL and raising triglycerides. While large fluffy particles remain preferable to small dense particles, particle size alone is likely not the primary driver of coronary event risk. Read more

EP42: Trip To America

EP42: Trip To America Read more

EP41: Interview With Amcal's James Nevile

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. Episode Summary Dr. Warwick Bishop, a practicing cardiologist and patient education advocate, interviews James Neville, a senior pharmacist at Amcal with over 20 years of pharmaceutical industry experience. The episode focuses on Amcal's Healthy Heart Campaign, a cardiovascular health initiative designed to encourage Australians to proactively manage their heart health and engage with healthcare professionals. Key Takeaways: Over 40% of Australian men admit they would need a life-threatening health scare to start taking their health seriously, demonstrating a concerning gap in preventative health engagement among males. One in four millennials have already lost a parent to heart disease, highlighting that cardiovascular disease impacts not only individuals but entire families and communities. Amcal pharmacies offer free, accessible heart health assessments as a low-barrier first step before GP visits, helping address men's reluctance to schedule doctor appointments due to cost, time, or hassle concerns. Patient education and health literacy significantly improve health outcomes, with informed patients who understand their own health information achieving better results through proactive self-management. An integrated, patient-centered care approach—where pharmacists, GPs, physiotherapists, and dietitians collaborate—delivers superior outcomes compared to siloed, profession-centered models. The Healthy Heart Campaign uses the validated Australian Cardiovascular Risk Calculator and coordinates between pharmacy and GP assessments, ensuring patients receive appropriate interpretation of results from qualified health professionals. Pharmacists can measure and discuss certain heart disease risk factors (like blood pressure) in-pharmacy, while GPs assess additional markers, creating a seamless two-stage assessment process. Family members play a crucial supportive role in encouraging loved ones to engage with heart health screening, particularly for men who may otherwise delay preventative care. Common modifiable risk factors for heart disease include weight, smoking status, and family history, making proactive early intervention possible. Amcal's heart health initiative is available year-round in pharmacies, providing ongoing accessible support beyond the current awareness campaign period. Read more

EP40: What Is Electrophysiological Ablation Of Atrial Fibrillation?

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. EP40: Electrophysiological Ablation of Atrial Fibrillation Dr. Warwick Bishop is a practicing cardiologist and author dedicated to patient education about heart health. In this episode, he explains electrophysiological (EP) ablation, a specialized procedure used to treat atrial fibrillation when conventional lifestyle modifications and medications prove ineffective. The episode focuses on how the procedure works, why it's effective, and which patients are best suited for this advanced cardiac intervention. Key Takeaways: Electrophysiological ablation is a subspecialty treatment performed by cardiologists who specialize in the electrical systems of the heart and is considered when lifestyle changes and medications fail to control symptomatic atrial fibrillation. Atrial fibrillation is caused by muscle cells from the left atrium that extend into the pulmonary veins, where they malfunction and fire erratically, disrupting the heart's normal electrical rhythm. The procedure works by isolating the pulmonary veins from the left atrium through "ring barking"—creating a circumferential scar that separates misbehaving cells in the veins from normal cells in the atrium. EP ablation is performed using catheter-based techniques that access the heart through the venous system in the leg, crossing from the right atrium to the left atrium to reach all four pulmonary veins. The procedure is guided by CT imaging of the patient's left atrium and pulmonary veins, allowing the electrophysiologist to precisely navigate and ablate tissue using radiofrequency, freezing, or burning techniques. Success rates are high, with 70-80% of patients experiencing very successful results, and approximately 5-10% requiring a second procedure; most patients can go home the next day. The procedure is most appropriate for younger patients with structurally normal hearts who are symptomatic from atrial fibrillation, as success rates decline significantly in patients with major structural heart abnormalities. Patients must remain on anticoagulants during the procedure because the ablation creates rough spots on tissue that could promote blood clot formation. Read more

EP39: Stents Bare Metal and Drug Eluting

Hi, my name's Dr. Warrick Bishop, and I'd like to welcome you to my consulting room. Today I'd like to speak with you a little bit about stents. Stents are the scaffold that go into arteries to open up those arteries. They're deployed by being laid over a balloon. The whole device; the stent and the balloon are passed into that narrowing. Read more