Heart Attacks are Preventable!

EP204: Dan's Journey Part 4

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, a practicing cardiologist and author, hosts this episode featuring Dan, a patient who underwent bypass surgery for chronic artery disease at age 44. This is part four of Dan's journey, focusing on his hospital discharge, rehabilitation, and return to normal life five months post-surgery. Key Takeaways: The first four to six weeks post-surgery are primarily about recovery and managing complications, not rehabilitation; meaningful progress typically begins around the six-week mark when internal healing has progressed sufficiently. Formal cardiac rehabilitation programs offered through hospitals are highly beneficial and should be strongly encouraged; they combine structured low-intensity exercise with educational sessions on medications, lifestyle, and recovery. Sternal (chest) wounds require careful protection for approximately 90 days to allow bones to knit properly; exercise during this period should involve very low intensity, minimal chest movement, and weights under one kilogram. Preventative medications often produce no noticeable side effects or positive feelings, which can actually indicate they are working effectively by preventing adverse events from occurring in the first place. Partners and family members can attend rehabilitation sessions, though attendance isn't mandatory; the decision depends on individual needs and circumstances rather than a one-size-fits-all approach. A proactive approach to health—including regular blood tests, cholesterol monitoring, cardiac scanning, and seeing specialists—can be lifesaving and may prevent major cardiac events like heart attacks. Recovery from bypass surgery is gradual and non-linear; complications like infections or medication side effects can extend recovery time, but persistence and patience yield consistent improvement. Return to normal activities like jogging and surfing can occur around the 12-13 week post-surgery mark, though activities should start gently and progress cautiously based on individual tolerance. Some nerve damage from surgery is unavoidable and may persist long-term, but this doesn't prevent return to full physical function and activity levels. Read more

EP203: Dan's Journey Part 3

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, a practicing cardiologist and author dedicated to patient education, welcomes back Dan for part three of his bypass surgery journey. Dan is a 44-year-old fit surfer and engineer who discovered significant coronary artery blockages and underwent coronary artery bypass grafting after stress tests and angiograms revealed dangerous plaque buildup. This episode focuses on Dan's surgery experience and immediate post-operative recovery in the hospital. Key Takeaways: Dan experienced anxiety the night before surgery despite pre-medication, unable to sleep and watching Breaking Bad series to cope with the uncertainty and reality of the upcoming procedure. The surgical team harvested grafts from multiple sites: an artery from Dan's left arm, a vein from his right leg, and an internal mammary artery from inside the chest—arterial grafts are preferred because they tend to last longer and function more effectively than vein grafts. Post-operative pain was concentrated in the graft sites (arm and leg) and rib cage mobility restrictions rather than in the heart itself, with hiccups being surprisingly excruciating due to the sutured ribcage and oxygen support. Dan experienced significant immobility challenges during recovery, struggling to sit up, move in bed, or walk without sharp pain, which complicated basic functions like using the toilet and participating in physiotherapy. Hospital-induced constipation led to embarrassing moments during early mobilization, but Dan discovered that bodily functions and recovery take priority over dignity when seriously ill. Dan's liver function tests (ALT levels) showed abnormalities reaching 1,000 (normal is under 50), likely triggered by post-surgical medications and antibiotics, requiring extended hospitalization (9-10 days) and daily blood tests at home. Under doctor's supervision, Dan's cholesterol medications and other medicines were temporarily stopped to allow his liver to recover, then carefully reintroduced once ALT levels normalized. A leg infection from antibiotics prevented Dan from walking for three weeks and stalled his rehabilitation progress during the first four weeks post-surgery. Psychologically, Dan's mental state improved once surgery occurred because the uncertainty and fear of the unknown were replaced with concrete physical injuries he could work toward recovering from. The transition from pre-operative anxiety and life-threatening uncertainty to post-operative recovery focused on tangible physical healing provided Dan with a sense of control and purpose in his recovery journey. Read more

EP202: Dan's Journey Part 2

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, a practicing cardiologist and author, continues his conversation with Dan in part two of "Dan's Journey," exploring how a routine cardiovascular risk assessment revealed serious coronary artery disease in this seemingly healthy 44-year-old man. This episode follows Dan's diagnostic journey from a cardiac CT scan through stress testing to an angiogram that revealed four 95% blockages, leading to emergency bypass surgery. Through their dialogue, Dr. Warrick and Dan discuss both the medical and emotional dimensions of Dan's unexpected health crisis and its impact on his family. Key Takeaways: Early intervention based on elevated cholesterol and cardiac imaging can identify serious coronary disease before a heart attack occurs, potentially saving lives. The combination of stress testing (ECG and ultrasound) can reveal lack of blood flow to the heart even in seemingly fit individuals, demonstrating that appearance is not an indicator of cardiac health. Invasive coronary angiograms provide the most detailed images of heart arteries and are essential for determining whether stent placement or bypass surgery is the appropriate treatment. Multiple coronary blockages are typically better treated with bypass grafts rather than stents, as this approach can address all problem areas simultaneously. Private health insurance policies that exclude cardiac coverage are problematic and leave patients vulnerable to substantial unexpected costs (over $5,000 in Dan's case), and Dr. Warrick argues insurance companies should not offer this exclusion. The psychological impact of waiting 2-3 weeks between diagnosis and surgery is often the most traumatic part of the patient experience, as they live with full knowledge of their life-threatening condition without being able to take action. Surgical delays due to ICU bed availability are a public healthcare system challenge, though Dr. Warrick explains that postponements typically occur because more critical emergency cases take priority through medical triage protocols. Family members, particularly spouses, play a crucial role in supporting patients through cardiac crisis, and their coping mechanisms—whether practical planning or emotional support—significantly impact the patient's experience. Young children and those with autism spectrum disorder may struggle with unexpected disruptions to routine and the absence of normal activities, adding family stress to an already challenging medical situation. Read more

EP201: Dan's Journey Part 1

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, a practicing cardiologist and author, hosts this episode featuring Dan, a 45-year-old patient from Tasmania who recently underwent coronary artery bypass grafting. Despite being fit, active, and an unlikely candidate for heart disease, Dan's story reveals how preventative screening and early intervention saved his life. The episode explores Dan's journey from routine cholesterol testing through diagnosis and the events leading to his open-heart surgery. Key Takeaways: A seemingly healthy, fit 45-year-old man with no obvious risk factors discovered significant coronary artery disease through preventative screening prompted by an incidental ear infection and a doctor's recommendation for routine blood tests. Elevated cholesterol levels (high eights) served as the primary risk enhancer that justified advanced imaging despite Dan's low-risk profile by conventional calculators and lack of typical cardiac symptoms. Subtle warning signs can be easily dismissed—Dan attributed his shortness of breath during intense exercise to being "out of shape" after COVID lockdowns and aging, rather than recognizing it as a potential cardiac symptom. Starting low-dose aspirin and cholesterol medication as a precautionary measure while awaiting imaging results proved crucial, representing a "better safe than sorry" approach when arterial disease status is unknown. A CT coronary angiography (CTCA) scan was recommended as a more precise diagnostic tool than relying solely on medication to manage risk, allowing for targeted treatment decisions. The timing of Dan's diagnosis was critical—his ear surgery delayed the CT scan until after Christmas, during which his symptoms worsened significantly, including becoming breathless on mild inclines. Physicians should maintain a low threshold for expediting follow-up appointments when imaging reveals high-risk features, as early intervention can be lifesaving even if it creates temporary patient anxiety. Family history of premature coronary disease (Dan's uncle had bypass surgery in his late 60s) combined with elevated cholesterol created justification for preventative imaging in a younger patient. Read more

EP200: Celebrating My 200th Podcast

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 who uses education to help patients understand their heart health, believing that educated patients receive the best care. This episode marks the celebration of his 200th podcast, where he reflects on his four-year journey producing content on cardiovascular health and shares his expansive work in cardiac education and book authorship. Key Takeaways: Dr. Bishop has built a substantial podcast following with hundreds of subscribers and thousands of downloads over four years, demonstrating the audience's appetite for accessible cardiac health education. The Healthy Heart Network membership platform offers both free and premium tiers, providing access to podcasts, blogs, courses, and increased personal engagement with Dr. Bishop. Dr. Bishop has authored multiple books including "Know Your Real Risk of Heart Attack" and "Atrial Fibrillation Explained," with upcoming releases on cardiac failure, cardiac rehabilitation, cholesterol and statins, and heart attack prevention. He intentionally writes books with dual audiences in mind—accessible to the general non-medical population while containing sufficient detail to educate healthcare professionals including GPs, nurses, and trainee doctors. Dr. Bishop has produced two TED Talks and secured interviews with notable public figures like Greg Page (original Yellow Wiggle) and Darren Lehman (former Australian cricket coach) to enhance his cardiac rehabilitation content. The Healthy Heart Network is developing a web-based "cardio check" platform featuring virtual heart scan consultations to guide patients through cardiac imaging processes. An innovative health monitoring device is in development to track multiple cardiac parameters including rhythm, pulse, blood pressure, heart rate variability, and oxygen saturation for premium membership users. The core mission emphasizes that sharing heart health education broadly helps maximize its positive impact on public health outcomes. Read more

EP199: Coffee, Statins and Biodegradable Pacemakers

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 passionate health educator who hosts this podcast to help patients understand heart health through evidence-based information. In this episode, Dr. Bishop discusses three fascinating topics in cardiac care: coffee consumption and heart arrhythmias, the risk-benefit profile of statin therapy, and the emerging technology of biodegradable pacemakers. The episode emphasizes how educated patients can make better healthcare decisions by understanding the latest research and innovations. Key Takeaways: A UK biobank study of 400,000 people found no strong association between regular coffee consumption (1-3 cups daily) and the development of heart arrhythmias, providing reassurance for coffee drinkers. Genetic analysis revealed that rapid metabolizers of caffeine tend to drink more coffee, demonstrating individual variation in how people process caffeine. Patients with existing atrial fibrillation or supraventricular tachycardia should monitor their personal response to coffee, as individual sensitivity varies. A meta-analysis of 60+ statin trials covering 120,000 people showed that per 10,000 patients treated annually, statins prevent 19 heart attacks, 9 strokes, and 8 cardiovascular deaths. While muscle aches and pains do occur as statin side effects, the significant cardiovascular benefits substantially outweigh the tolerability concerns for most patients. Biodegradable pacemakers are being developed to temporarily support heart rhythm after cardiac surgery without the infection risks associated with external wires and boxes. These experimental biodegradable devices use wireless inductive power technology (similar to smartphone chargers) that can function from up to 15 inches away, eliminating the need for leads or skin breaches. Biodegradable pacemakers are currently in animal trials and represent an innovative convergence of engineering and cardiac medicine that could transform post-surgical care. Read more

EP198: Blackouts and Syncope

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 educating patients about heart health, believing that informed patients receive the best care. In this episode, Dr. Bishop provides a comprehensive overview of syncope (blackouts), explaining the various medical causes and sharing a successful clinical case study of a patient with vasovagal fainting. The episode emphasizes the importance of proper diagnosis and treatment for this common but potentially serious condition. Key Takeaways: Syncope is a medical term derived from a word meaning "pauses" and refers to blackouts or loss of consciousness that require proper medical evaluation. Blackouts can originate from three main sources: the brain (such as seizures), the heart (too fast or too slow), or blood pressure regulation issues. Seizure-related blackouts are typically characterized by warning signs (aura), violent shakes or tremors, and specific seizure patterns that distinguish them from cardiac causes. Cardiac causes of syncope include arrhythmias (heart racing) or conduction failures that cause sudden pauses, often resulting in sudden collapse. Orthostatic hypotension (blood pressure drops upon standing) is a common cause of blackouts, particularly when moving from resting to upright positions. Vasovagal syncope results from overactivity of the parasympathetic nervous system (rest and digest response) and presents as a "simple faint" triggered by emotional stress, blood, needles, or other specific stimuli. Dr. Bishop successfully treated a 70-year-old patient's decade-long fainting episodes using a two-pronged approach: beta blockers to dampen heart rate acceleration and anticholinergic agents (like BuskPam) to attenuate the parasympathetic response. Treatment strategies for vasovagal syncope should address both the initial rapid heart rate increase and subsequent dangerous slowdown using low-dose medications that carry minimal risk. Patients experiencing syncope should consult both their general practitioner and a cardiologist, as driving restrictions or exemptions may be necessary depending on the underlying cause. Syncope is a treatable and common condition, making proper diagnosis and intervention essential for patient safety and quality of life. Read more

EP197: Thinking About Cholesterol Getting Into 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. Eric Bishop is a practicing cardiologist and author dedicated to educating patients about heart health and the latest advances in cardiac care. In this episode, Dr. Bishop discusses cholesterol and coronary artery disease, focusing on the research of Vladimir Subotin from the Russian Academy of Sciences, who proposes an alternative mechanism for how cholesterol accumulates in artery walls. The episode challenges conventional understanding while emphasizing that lowering cholesterol in high-risk patients demonstrably reduces heart attack risk. Key Takeaways The traditional view holds that cholesterol particles (LDL) circulate in the bloodstream and deposit in artery walls at points of wear and tear, but this mechanism is difficult to directly observe in living organisms. Subotin's research suggests cholesterol may not primarily enter arteries from the bloodstream but rather accumulates through an alternative pathway. Artery walls consist of three layers (tunica intima, tunica media, and tunica adventitia); when examined under microscopes, cholesterol deposits appear in locations inconsistent with the traditional inside-to-outside migration theory. Arterial wear and tear triggers local inflammation and irritation, causing cells to release tissue factors that signal the body to send repair materials, including cholesterol, to the damaged area. Subotin proposes cholesterol travels into the middle artery layer via the vasa vasorum—tiny blood vessels that supply nutrients to the artery wall itself—rather than crossing from the arterial lumen. Regardless of the specific mechanism by which cholesterol enters artery walls, clinical evidence confirms that lowering LDL cholesterol in high-risk patients reduces their future heart attack risk. Coronary artery disease is multifactorial; cholesterol alone does not explain the disease, and factors like inflammation, blood pressure, and arterial wear and tear all play important roles. Read more

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. Read more

EP195: Liquorice of All Sorts

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 patient education about heart health. In this episode, Dr. Bishop explores licorice—a common confectionery and herbal remedy—and explains the serious cardiovascular risks associated with excessive consumption, including how it can trigger pseudo-hyperaldosteronism and dangerous changes in blood pressure and electrolyte balance. Key Takeaways: Licorice is derived from the root of the Glyzira glabra plant and is consumed as candy, tea, or herbal supplement, often for digestive and bowel health benefits. Excessive licorice consumption can cause pseudo-hyperaldosteronism, a false elevation of aldosterone-like effects that mimics the body's stress response to low blood pressure. Aldosterone is a crucial hormone that regulates fluid balance, salt retention, and blood pressure through the renin-angiotensin system activated in response to physical stress or low blood pressure. Glycyrrhizin, the active ingredient in licorice, blocks enzymes that break down cortisol and aldosterone, leading to increased levels of these hormones in the body. Just 100 milligrams of glycyrrhizin can trigger problematic effects; a standard 300-gram bag of licorice contains six servings, each with 100 milligrams of glycyrrhizin. A single licorice tea bag can contain up to 100 milligrams of glycyrrhizin, meaning consuming more than one per day risks causing pseudo-hyperaldosteronism. Excess licorice leads to sodium retention, potassium loss, fluid retention, and elevated blood pressure, posing particular risks for those already suffering from hypertension. Other herbal supplements present cardiovascular risks: garlic, ginkgo, and echinacea can thin blood and increase bleeding risk when combined with anticoagulants; St. John's Wort reduces absorption of beta blockers and statins. Green tea, alfalfa, ginseng, and ginger can interfere with blood thinners like warfarin, while grapefruit can elevate statin levels to dangerous concentrations. Patients should consult their pharmacist before combining herbal supplements with prescription medications to avoid potentially serious drug interactions and adverse health effects. Read more