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Cardionerds: A Cardiology Podcast

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16 snips
Jul 30, 2021 • 47min

140. Lipids: LDL, Cardiovascular Events, & Disparities in Care with Dr. Keith Ferdinand

CardioNerds Dr. Rick Ferraro, Director of the #CardsJC Journal Club and cardiology fellow at Johns Hopkins and Dr. Tommy Das, Program Director of the CardioNerds Academy and cardiology fellow at Cleveland Clinic join Academy fellow and episode lead Dr. Julie Power, chief fellow at the University of Minnesota to learn all about the link between LDL-C and cardiovascular events and disparities in care from Dr. Keith Ferdinand, Professor of Medicine and Chair in Preventative Cardiology at Tulane University School of Medicine. As we’ve learned in prior episodes, LDL-C plays a key role in lipid pathophysiology.  But how does it lead to cardiovascular events?  LDL-C directly leads to plaque expansion and deposition in the arterial intima. Increasing levels of LDL-C are directly related to worsening plaque burden, a principle exhibited powerfully by the dose-dependent nature of coronary atherosclerosis in patients with underlying mutations leading to LDL-C elevation, such as familial hypercholesterolemia. Importantly, the treatment of atherosclerosis and implementation of lipid-lowering therapies are not uniform, with significant disparities throughout the community. The message is clear: Reducing LDL-C is of paramount significance in the prevention and treatment of coronary atherosclerosis and ensuring equitable access to care is critical to addressing the societal burden of cardiovascular disease and improving the health of our communities. There is no CME associated with this episode. To get free CME from other CardioNerds episodes, please visit VCU Health here. Relevant disclosure: Dr. Ferdinand reported severing as a consultant for Medtronic, Amgen, and Novartis. Pearls • Quotables • Notes • References • Guest Profiles • Production Team CardioNerds Lipid Series PageCardioNerds Episode PageCardioNerds AcademyCardionerds Healy Honor Roll CardioNerds Journal ClubSubscribe to The Heartbeat Newsletter!Check out CardioNerds SWAG!Become a CardioNerds Patron! Pearls - LDL, Cardiovascular Events, & Disparities in Care LDL-C is a major stimulant for the initiation and progression of atherosclerosis.The lower the LDL-C level, the greater the clinical benefit in both primary and secondary ASCVD prevention.Our healthcare systems continue to have major disparities in access to quality care and it is essential to reduce barriers to cardiovascular wellness for all communities.Lowering LDL-C in individuals at high cardiovascular risk, especially in those with familial hypercholesterolemia, prevents ASCVD events. Quotables - LDL, Cardiovascular Events, & Disparities in Care “Empower patients to be partners in their care” Dr. Keith Ferdinand Show notes - LDL, Cardiovascular Events, & Disparities in Care 1. What is the link between LDL-C and cardiovascular events? LDL-C is a major stimulant for the initiation and progression of atherosclerosis. The key events in the initiation of ASCVD are the retention and accumulation of cholesterol-rich lipoproteins within the arterial intima at sites with a predilection for plaque formation. As serum levels of LDL-C increase, the probability of intimal retention of LDL leading to the development of atherosclerotic plaque increases in a dose-dependent manner [4].The WOSCOPS trial demonstrated genes associated with lower LDL-C levels are also associated with a three-fold reduction in the risk of cardiovascular disease per unit reduction in LDL-C [4].The Emerging Risk Factors Collaboration (ERFC) and Prospective Studies Collaboration reported plasma LDL-C was associated with increased risk of non-fatal MI or CHD death [4].Statins uniformly reduce atherosclerotic risk across varying levels of baseline LDL-C and are first line therapy for primary and secondary prevention of ASCVD.In high-risk individuals and secondary prevention populations, AHA/ACC guidelines recommend 50% reductions in LDL-C, regardless of baseline, to < 70 mg/dL,
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Jul 26, 2021 • 1h 6min

139. Narratives in Cardiology: International Medical Graduates in the Cardiology Workforce with Dr. William Zoghbi

CardioNerds (Amit Goyal and Daniel Ambinder) join fellow lead, Dr. Giselle A. Suero-Abreu (FIT, Massachusets General Hospital), Dr. Isadora Sande Mathias (FIT, Houston Methodist and CardioNerds Academy Fellow), and Dr. Victor Nauffal (FIT, Brigham and Women's Hospital) for a discussion with Dr. William Zoghbi (Chair, Department of Cardiology, Houston Methodist Hospital, Methodist DeBakey Heart & Vascular Center, Past President, the American College of Cardiology) about international medical graduates in the cardiology workforce. This episode focuses on the narratives of international medical graduates (IMGs) who make important contributions to the US medical workforce and scientific innovation. Listen to the episode to learn the state of IMGs in the US physician workforce and the field of Cardiology, an overview of factors that influence IMG selection when applying to residency and fellowship training programs in the US, the impact of recent changes in licensing exams and immigration restrictions, and how to address challenges and support IMGs throughout their medical careers. Audio editing by CardioNerds Academy Intern, Dr. Leticia Helms. Claim free CME just for enjoying this episode! Disclosures: None Cardionerds Narratives in Cardiology PageCardioNerds Episode PageCardioNerds AcademyCardionerds Healy Honor Roll Subscribe to The Heartbeat Newsletter!Check out CardioNerds SWAG!Become a CardioNerds Patron! Show notes 1. What is the definition of an international medical graduate (IMGs)? International medical graduates (IMGs) are physicians who who graduated from a medical school outside the United States, regardless of nationality. This group of foreign-trained physicians include US-IMGs (US citizens) and non-US IMGs (non-US citizens). Nearly 80% of IMGs are born abroad [1]. In a paper senior authored by Dr. Zoghbi, IMGs in the US physician workforce are described as “the multicultural, multiethnic, open-minded, and plural fabric that has defined American medicine and contributed to its success over the years” [2]. 2. Why are IMGs important? IMGs are an integral part of the U.S. healthcare system. They constitute about 25% of the physician workforce and, since 2010, the number of IMGs in practice has grown by nearly 18% [1, 3]. IMGs play a critical role in addressing healthcare inequities across the US, comprising a significant proportion of physicians in high-need rural and underserved urban areas [1, 3, 4]. IMGs contribute to the diversity and cultural competence in the US physician workforce with 98% of them speaking two or more languages fluently. They help patients overcome linguistic and cultural barriers that can interfere with their care [5]. Learn more about Diversity and inclusion (Episode 95) and Latinx representation in cardiology  (Episode 129). Racial and ethnic concordance between physicians and their patients results in improved healthcare outcomes, and IMGs are essential in matching the needs of the increasingly diverse US population [6]. Many IMGs pursue the opportunity to train in the best academic programs in the US and return as leaders to serve their country. This becomes an avenue for international collaboration to help patients and contribute to research, innovation, and education. 3. What is the state of the IMG workforce in Cardiology? IMGs in cardiology serve as an important source of cardiac care in the United States. Data from the 2020 Physician Specialty Data Report from the Association of American Medical Colleges (AAMC) [7] showed that: Among active US physicians, IMGs comprise 31% of general cardiologists, 46% of interventional cardiologists, and 26% of pediatric cardiologists.Among ACGME trainees, IMGs constitute 38% of fellows in cardiovascular disease, 53% in interventional cardiology, and 20% in pediatric cardiology.Many IMGs have non-immigrant visas, including the J-1 Visitor Exchange visa,
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Jul 21, 2021 • 1h 6min

138. Lifelong Advocacy for Women’s Cardiovascular Health with Dr. Sharonne Hayes and Dr. Nanette Wenger

CardioNerds Cardio-OB series co-chairs University of Texas Southwestern Cardiology Fellow, Dr. Sonia Shah (FIT, University of Texas Southwestern) and Dr. Natalie Stokes, (FIT, University of Pittsburgh) join  Dr. Nanette Wenger, Professor of Medicine in the Division of Cardiology at the Emory University School of Medicine and a consultant to the Emory Heart and Vascular Center and Dr. Sharonne Hayes, Professor of Internal Medicine and Cardiovascular Diseases and founder of the Women’s Heart Clinic at Mayo Clinic for an in depth discussion about lifelong advocacy for women's cardiovascular health. Audio editing by CardioNerds Academy Intern, Dr. Leticia Helms. CardioNerds Cardio-Obstetrics Series PageCardioNerds Episode PageCardioNerds AcademyCardionerds Healy Honor Roll CardioNerds Journal ClubSubscribe to The Heartbeat Newsletter!Check out CardioNerds SWAG!Become a CardioNerds Patron! Guest Profiles - Advocacy for Women's Cardiovascular Health Dr. Nanette Wenger Dr. Nanette Wenger is Professor of Medicine in the Division of Cardiology at the Emory University School of Medicine. Dr. Wenger received her medical degree from Harvard Medical School in 1954 as one of their first female graduates followed by training at Mount Sinai Hospital where she was the first female to be chief resident in the cardiology department. She is among the first physicians to focus on heart disease in women with an expertise in cardiac rehabilitation and geriatric medicine.Dr. Wenger has received numerous awards including the Distinguished Achievement Award from the Scientific Councils of the American Heart Association and its Women in Cardiology Mentoring Award, the James D. Bruce Memorial Award of the American College of Physicians for distinguished contributions in preventive medicine, the Gold Heart Award, the highest award of the American Heart Association, a Lifetime Achievement Award in 2009 and the Inaugural Bernadine Healy Leadership in Women’s CV Disease Distinguished Award, American College of Cardiology. She chaired the U.S. National Heart, Lung, and Blood Institute Conference on Cardiovascular Health and Disease in Women, is a Past President of the Society of Geriatric Cardiology and is past Chair, Board of Directors of the Society for Women’s Health Research. Dr. Wenger serves on the editorial boards of numerous professional journals and is a sought-after lecturer for issues related to heart disease in women, heart disease in the elderly, cardiac rehabilitation, coronary prevention, and contemporary cardiac care. She is listed in Best Doctors in America. Dr. Sharonne N. Hayes Sharonne N. Hayes, M.D., studies cardiovascular disease and prevention, with a focus on sex and gender differences and conditions that uniquely or predominantly affect women. With a clinical base in the Women's Heart Clinic, Dr. Hayes and her research team utilize novel recruitment methods, social media and online communities, DNA profiling, and sex-specific evaluations to better understand several cardiovascular conditions. A major area of focus is spontaneous coronary artery dissection (SCAD), an uncommon and under-recognized cause of acute coronary syndrome (heart attack) that occurs predominantly in young women. Dr. Hayes also studies the diagnosis and treatment of nonobstructive (microvascular) coronary artery disease and chest pain syndromes and the subsequent risk of arrhythmias and other cardiac conditions in women who have had hypertension, diabetes or preeclampsia during a pregnancy. With the Pericardial Disease Study Group, Dr. Hayes is assessing the optimal management of pericarditis. Additionally, Dr. Hayes is involved in several research initiatives aimed at addressing health equity and reducing health disparities. Through partnerships with national professional women- and minority-serving organizations, Dr. Hayes assesses barriers faced by women and minorities that prevent or deter them from participa...
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Jul 19, 2021 • 1h 37min

137. WomenHeart Champions: Patients As Support and Advocates for Women With Heart Disease

In this special CardioOB series patient perspective episode, CardioNerds (Amit Goyal and Daniel Ambinder), join three incredible WomenHeart Champions, Ms. Porothea Dennis, Ms. Brandie Taylor, and Ms. Ellen Robin in the presence of two legendary leaders in cardiovascular medicine,  Dr. Nanette Wenger and Dr. Sharonne Hayes. In addition to this episode being featured on our Cardio-Obstetrics topic page, you can also find this episode in our Patient and Family Perspective collection which features several moving and meaningful patient and family stories that remind us of why we do what we do. Special message by Ms. Celina Gorre, CEO of WomenHeart. Audio editing by CardioNerds Academy Intern, Dr. Leticia Helms. The CardioNerds Cardio-Obstetrics series is a comprehensive series led by series co-chairs Dr. Natalie Stokes CardioNerds ambassador from UPMC and Dr. Sonia Shah CardioNerds ambassador from UTSW, and produced in collaboration with WomenHeart. There is no CME for this episode. Relevant disclosures: None. CardioNerds Cardio-Obstetrics Series PageCardionerds Patient and Family Perspective PageCardioNerds Episode PageCardioNerds AcademyCardionerds Healy Honor Roll CardioNerds Journal ClubSubscribe to The Heartbeat Newsletter!Check out CardioNerds SWAG!Become a CardioNerds Patron! Why Cardio-Obstetrics❓ Because it’s important, and relevant to anyone taking care of women who are, may become, or have been pregnant as cardiovascular disease is the #1 cause of pregnancy-related death.  In order to raise awareness we’ve put together an fun, sometimes sobering, but comprehensive curriculum, so get ready, because this CardioNerds Cardio-Obstetrics cruise will dock at several ports along the way: ✔normal pregnancy physiology, ✔hypertensive disorders, ✔arrhythmia, ✔valvular heart disease, ✔anticoagulation, ✔pulmonary hypertension, ✔congestive heart failure, ✔aortopathies, ✔coronary artery disease, ✔critical care, ✔4th trimester, ✔Racial disparities in care, ✔interventional considerations, ✔patient perspectives including from womenheart champions, and more! CardioNerds Cardioobstetrics Production Team Natalie Stokes, MDSonia Shah, MDAmit Goyal, MDDaniel Ambinder, MD
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Jul 16, 2021 • 58min

136. ACC 2021 Prevention Highlights – ADAPTABLE and STRENGTH Trials

Join CardioNerds for a great discussion about key ACC 2021 Prevention highlights featuring the ADAPTABLE and STRENGTH trials. This episode is produced in collaboration with the American College of Cardiology Prevention of Cardiovascular Disease Council with mentorship from the Council’s Chair Dr. Eugene Yang (University of Washington Medical Center) who provides a message at the end of the episode.   First, Dr. Amit Goyal and Council Representative Dr. Mahmoud Al Rifai (FIT, Baylor College of Medicine) discuss the implications of the ADAPTABLE Trial with Dr. Gina Lundberg (Emory University School of Medicine).   Then Dr. Tommy Das (FIT, Cleveland Clinic), Dr. Rick Ferraro (FIT, Johns Hopkins) and Council Representative Dr. Anum Saeed (FIT, University of Pittsburgh Medical Center) discuss the results of the STRENGTH trial’s secondary analysis with Dr. Steven Nissen (Cleveland Clinic).   Disclosures: Dr Nissen reported grants from AstraZeneca during the conduct of the STRENGTH trial Cardionerds Cardiovascular Prevention PageCardioNerds Episode PageCardioNerds AcademyCardionerds Healy Honor Roll Subscribe to The Heartbeat Newsletter!Check out CardioNerds SWAG!Become a CardioNerds Patron! Show notes ADAPTABLE Trial  The ADAPTABLE trial is a randomized open label pragmatic trial comparing two doses of aspirin (325 mg vs. 81 mg) for the secondary prevention of cardiovascular disease. The trial employed a range of innovative and low-cost methods to simplify the identification, recruitment, and follow-up of patients. The primary effectiveness outcome was a composite of death from any cause, hospitalization for myocardial infarction, or hospitalization for stroke. The primary safety outcome was hospitalization for major bleeding.  A total of 15,076 patients were followed for a median of 26.2 months. The primary effectiveness and safety outcomes were not significantly different between the two groups. Together with Dr. Lundberg we discuss design and methodological issues related to the trial and applicability to clinical practice.   ASA 81 mg is as effective as ASA 325 mg for reducing cardiovascular events ASA 325 mg does not cause more bleeding episodes than ASA 81 mg ASA dosing should be based on a clinician-patient risk discussion incorporating patients’ risk profile and their values and preferences  Future trials should ensure adequate representation of women and race/ethnic minorities   The results of the present trial suggest that either dose of ASA (81 mg or 325 mg) would be adequate to lower patients’ risk of death or atherosclerotic cardiovascular events with similar risk of bleeding. ASA dosing should be based on patient values and preferences and clinician judgement as the effectiveness and safety profile of these two regiments appears to be equivalent on the basis of the present trial.   STRENGTH Trial, Secondary Analysis  Whether omega-3 fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) reduce cardiovascular risk has been long debated. Data have largely remained inconclusive with several previous trials, particularly the VITAL and ASCEND, showing no significant cardiovascular benefit DHA and EPA supplementation. However, the REDUCE-IT and the JELIS trials showed cardiovascular benefit with higher dose of purified EPA compared to placebo.  Meanwhile, the STRENGTH trial did not show any difference in CVD outcomes in treatment groups using a combined EPA/DHA formulation.  In this episode, we discuss a secondary anaylsis from the STRENGTH trial entitled “Association Between Achieved ω-3 Fatty Acid Levels and Major Adverse Cardiovascular Outcomes in Patients With High Cardiovascular Risk” presented at the ACC 2021 addressing the effects of carboxylic acid formulation of EPA/DHA (omega-3 CA) compared with placebo among patients with dyslipidemia and high cardiovascular risk.   This analysis showed that there was no added clinical benefit or harm i...
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Jul 12, 2021 • 1h 8min

135. Narratives in Cardiology: Underrepresentation in Clinical Trials & Guidelines with Dr. Clyde Yancy – Illinois Chapter

CardioNerds (Amit Goyal and Daniel Ambinder), Dr. Victoria Thomas (Cardionerds Ambassador, Vanderbilt University Medical Center), and Dr. Quentin Youmans, cardiology fellow at Northwestern Medicine Bluhm Cardiovascular Institute, join Dr. Clyde Yancy, Vice Dean for Diversity and Inclusion and Chief of Cardiology in the Department of Medicine at Northwestern for an important discussion about underrepresentation in clinical trials and guidelines. This episode was recorded during a live event hosted by the ACC Illinois Chapter. Listen in to hear why diversity matters in clinical trials, how we can recruit more minorities in representation in CV trials and so much more! Stay tuned for a message by chapter Governor, Dr. Annabelle Volgman.   The PA-ACC & CardioNerds Narratives in Cardiology is a multimedia educational series jointly developed by the Pennsylvania Chapter ACC, the ACC Fellows in Training Section, and the CardioNerds Platform with the goal to promote diversity, equity, and inclusion in cardiology. In this series, we host inspiring faculty and fellows from various ACC chapters to discuss their areas of expertise and their individual narratives. Join us for these captivating conversations as we celebrate our differences and share our joy for practicing cardiovascular medicine. We thank our project mentors Dr. Katie Berlacher and Dr. Nosheen Reza. Audio editing by CardioNerds Academy Intern, Dr. Gurleen Kaur. Video Version • Notes • References • Production Team Claim free CME just for enjoying this episode! There are no relevant disclosures for this episode. The PA-ACC & CardioNerds Narratives in Cardiology PageCardioNerds Episode PageCardioNerds AcademyCardionerds Healy Honor Roll CardioNerds Journal ClubSubscribe to The Heartbeat Newsletter!Check out CardioNerds SWAG!Become a CardioNerds Patron! Video version https://youtu.be/5gGqWysdCT0 Show notes 1. Why does diversity matter in clinical trials? Having clinical trial enrollment being representative of the general population in which we practice is essential for the generalizability of the trial results.Representative populations matter so we can say to patients, “yes, there were patients that think like you and look like you in the trial.” We can confidently tell them how patients within the trial have done. This is important when we are trying to narrow health disparities to provide confidence and comfort to our patients.Advocacy for health equity is important but not enough. We need data or evidence to support why a change in our behaviors and clinical practice is needed. An evidence base that reflects and includes all our patients is key to bridging health disparities.In medicine, the case for diversity also includes to better serve diverse patients, to promote health equity, to provide diverse mentors at all levels, to bring different points of view to debates and problem solving, to better engage our communities, and to include investigators with a broad range of perspectives in their scholarly activities. (1) 2. How do we recruit more minorities in representation in cardiovascular trials? We need more advocates for diversity in trials in the room when the conversations about trial designs are being made. This is why diversity of leadership is important.There needs to be an intentional approach for every clinical trial to recruit people that are likely to be candidates for enrollment.Stop asking patients to come “downtown” but instead go to their town or their communities. Meet them where they are.Always make sure you are providing some additional advantage or opportunity for the patients you have recruited into your trials. Don’t make it a one-way street. Allow patients to feel that they are getting the best care and generate trust with them.To gain trust, try to get a sense of what is happening in your patient’s life. Find 2-3 minutes to ask them to give a mini biography of their lives.
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Jul 5, 2021 • 56min

134. Nuclear and Multimodality Imaging: Cardiac Sarcoidosis

CardioNerd Amit Goyal is joined by Dr. Erika Hutt (Cleveland Clinic general cardiology fellow), Dr. Aldo Schenone (Brigham and Women’s advanced cardiovascular imaging fellow), and Dr. Wael Jaber (Cleveland Clinic cardiovascular imaging staff and co-founder of Cardiac Imaging Agora) to discuss nuclear and complimentary multimodality cardiovascular imaging for the evaluation of cardiac sarcoidosis. Show notes created by Dr. Hussain Khalid (University of Florida general cardiology fellow and CardioNerds Academy fellow in House Thomas). To learn more about multimodality cardiovascular imaging, check out Cardiac Imaging Agora! Cardiac sarcoidosis is a leading cause of morbidity and mortality for patients with sarcoidosis. A high index of suspicion is needed for the diagnosis as it is often recognized late or unrecognized. It is difficult to diagnose given the focal nature of the cardiac involvement limiting the utility of biopsy and the available clinical criteria have limited diagnostic accuracy. Multimodality imaging plays a large role in the diagnosis and management of patients with cardiac sarcoidosis with the different imaging modalities offering complimentary information and functions.  Collect free CME/MOC credit just for enjoying this episode!  CardioNerds Multimodality Cardiovascular Imaging PageCardioNerds Episode PageCardioNerds AcademyCardionerds Healy Honor Roll CardioNerds Journal ClubSubscribe to The Heartbeat Newsletter!Check out CardioNerds SWAG!Become a CardioNerds Patron! Quoatables “It’s not important for you to love the Soviet Union. It’s important for the Soviet Union to love you back [Stalin regarding the famous dissonant Russian poet Anna Akhmatova]. When we talk about PET, you love PET, but the PET has to love you back, and it has to love you back in a way where you have to know how to approach this test. With, first, some humility about its limitations: 1) inflammation is universal...and 2) the prep is extremely important.”  -- 11:25 “A test without a good preparation is a preparation to fail.” --15:30 “Sarcoidosis is kind of the tuberculosis that we have in medicine—it can present as anything.” --36:40 Pearls Cardiac Magnetic Resonance Imaging (Cardiac MRI) and/or 18-Fluorodeoxyglucose Positron Emission Tomography (FDG-PET) are complimentary tests in the evaluation of cardiac sarcoidosis. Both tests look for scarring and inflammation. Cardiac MRI is a good initial test due to its high negative predictive value (i.e. absence of LGE makes cardiac sarcoidosis less likely) but not great for following a cardiac sarcoidosis patient’s response to therapy. Cardiac FDG-PET is great to follow a patient's response to therapy especially in patients with intracardiac devices such as a pacemaker. 18-fluorodeoxyglucose (FDG) is a glucose analog and just like glucose, is transported into the cell by transporters. Once in the cell, it is phosphorylated, like glucose is, by hexokinase in preparation for use in glycolysis. Unlike glucose, however, it does not proceed to be metabolized any further in the glycolysis pathway and remains trapped in the cell. In the inflammatory cells within sarcoid granulomas, glycolysis is significantly increased to fuel the large energy requirement. Thus, these inflammatory cells (i.e. macrophages) can take up large amounts of FDG. When planning to obtain a cardiac FDG-PET for evaluation of cardiac sarcoidosis, patient preparation is key! There are several available dietary protocols to accomplish the goal of switching the patient’s metabolism to be reliant on fatty acids instead of glucose as an energy source. One such protocol used by the discussants in the episode is prolonged fasting (10-12 hours) prior to the study preceded by two meals that are high in fat and proteins and low in carbohydrates—a ketogenic diet. By having the patient eat this diet, we are trying to switch the metabolism because there is no ability or no offer ...
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Jun 30, 2021 • 1h 20min

133. Case Report: Ventricular Arrhythmias & Heart Failure – A Shocking Diagnosis – University of Chicago

CardioNerds (Amit Goyal and Daniel Ambinder), join cardiology fellows from the University of Chicago, (Dr. Mark Belkin, Dr. Ian Hackett, and Dr. Shirlene Obuobi) for an important discussion about case of a woman presenting with implantable cardioverter-defibrillator (ICD) discharges found to be in ventricular tachycardia (VT) storm and work through the differential of ventricular arrhythmias, etiologies of heart failure, and indications for permanent pacemaker and ICD placement. Advanced imaging modalities that aid in the diagnosis of cardiac sarcoidosis, manifestations and management of cardiac sarcoidosis are also discussed. Dr. Nitasha Sarswat and Dr. Amit Patel provide the E-CPR for this episode. Audio editing by CardioNerds Academy Intern, Leticia Helms. Claim free CME just for enjoying this episode! Disclosures: Dr. Amit Patel disclosed ownership of small stocks in GE Healthcare Bio-Sciences. Jump to: Case media - Case schematic & teaching - References CardioNerds Case Reports PageCardioNerds Episode PageCardioNerds AcademyCardionerds Healy Honor Roll CardioNerds Journal ClubSubscribe to The Heartbeat Newsletter!Check out CardioNerds SWAG!Become a CardioNerds Patron! Case Media Click to Enlarge Episode Teaching Pearls The etiology of wide-complex tachycardias (WCT) of ventricular origin can be broken down by structurally normal versus structurally abnormal hearts. WCT in structurally normal hearts can be further broken down into idiopathic or primary arrhythmia syndromes. WCT in structurally abnormal hearts can be broken down into ischemic and non-ischemic etiologies.In patients with an unexplained non-ischemic cardiomyopathy, conduction abnormalities and/or ventricular arrhythmias should raise suspicion for cardiac sarcoidosis. Additional manifestations include atrial arrhythmias and  pulmonary hypertension.Accurate diagnosis and treatment of cardiac sarcoidosis often requires multimodality cardiovascular imaging. Check out these terrific videos from Cardiac Imaging Agora: 1) PET for inflammation/sarcoidosis and 2) Echo and CMR for sarcoidosis.While a pathological tissue diagnosis is the gold-standard, endomyocardial biopsy has a low sensitivity, weven when paired with image guidance. Remember to consider extra-cardiac sites for biopsy.Decisions regarding ablation of ventricular arrhythmia or ICD placement should be done individually with careful assessment of active inflammation secondary to cardiac sarcoidosis and possible response to immunosuppressive medications.Management of cardiac sarcoidosis has two basic principles: 1) Treat the underlying process with immunosuppression and 2) Treat the cardiac sequelae: heart failure, conduction abnormalities, ventricular arrhythmias, atrial arrhythmias, and pulmonary hypertension. Notes 1. The patient in this case was found to be in VT storm. Taking a step back, when we suspect a wide complex tachycardia (WCT) is VT, what are some etiologies we should keep in mind? Differentiating between a supraventricular vs. ventricular origin of a WCT will be a topic for a future episode! But after you have determined that the origin of WCT is ventricular, considerations for the underlying etiology should include ischemia-related, non-ischemic cardiomyopathy-associated, primary arrhythmia syndromes and idiopathic (in addition to common considerations such as medications and electrolyte abnormalities)Chronic ischemia-related WCT is typically scar-mediated, a result of re-entrant mechanism and more commonly presenting as monomorphic VT. WCT in the setting of acute ischemia is likely a result of combination increased automaticity and re-entry, typically manifesting as polymorphic VT.  In fact, acute ischemia is the most common cause of polymorphic VT, not Torsades de Pointes, and should be our first consideration. Torsades de Pointes specifically occurs due to an early afterdepolarization in a patient with an acqui...
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7 snips
Jun 23, 2021 • 50min

132. Lipids: LDL Physiology & Function with Dr. Peter Toth

CardioNerds Academy Chief Fellows Dr. Rick Ferraro (FIT, Johns Hopkins) and Dr. Tommy Das (FIT, Cleveland Clinic) join Academy fellow Dr. Jessie Holtzman (soon, chief resident at UCSF internal medicine residency) to learn all about LDL physiology and function from Dr. Peter Toth! Low-density lipoprotein cholesterol (LDL-C) has been well established as a risk factor for atherosclerotic cardiovascular disease with an ever growing armamentarium of medications to lower LDL-C plasma levels. Yet, LDL-C also plays a number of key physiologic roles across mammalian species, such as cell membrane formation, bile acid synthesis, and steroid hormone production. In this episode, we discuss the definitions of high, normal, low, and ultra-low LDL-C, what functional assays are used to measure LDL-C, and what is considered the safe lower-limit of LDL-C, if there is one at all. Drawing upon experience from rare genetic conditions including abetalipoproteinemia and loss-of-function variants of the PCSK9 gene, we glean pearls that clarify  the risks and benefits of low LDL-C. Relevant disclosure: Dr. Toth has served as a consultant to Amarin, Amgen, Kowa, Resverlogix, and Theravance; and has served on the Speakers Bureau for Amarin, Amgen, Esperion, and Novo Nordisk. Pearls • Quotables • Notes • References • Guest Profiles • Production Team CardioNerds Lipid Series PageCardioNerds Episode PageCardioNerds AcademyCardionerds Healy Honor Roll CardioNerds Journal ClubSubscribe to The Heartbeat Newsletter!Check out CardioNerds SWAG!Become a CardioNerds Patron! Pearls 1. Lipoproteins are processed via two major pathways in mammals: 1) exogenous fat metabolism that digests ingested lipids and 2) endogenous fat metabolism that synthesizes lipids in the liver and small intestine. High density lipoprotein (HDL)-mediated reverse transport also brings lipids from the periphery back to the liver. 2. LDL-C comprises ~70% of plasma cholesterol due to its long half-life of 2-3 days. It is one of 5 major lipid particles in plasma including chylomicrons, very low-density lipoproteins (VLDL), intermediate-density lipoproteins (IDL), LDL, and HDL. The liver degrades 40-60% of LDL, while no other tissues in the body make up more than 10% of LDL. LDL-C is energy-poor and cholesterol rich, such that peripheral tissues may not utilize these particles as a fuel source. 3. Preserved functions of LDL-C across mammalian species include cell membrane formation, bile acid synthesis, and steroid hormone production. In other mammalian species, LDL-C levels are found in the 35-50 mg/dL range (Way lower than found in the general human population, and likely more representative of baseline human physiology!). 4. Large, randomized control trials do not consistently demonstrate major adverse effects associated with lower serum LDL-C levels, including risks of cognitive decline, hemorrhagic stroke, reduced bone density, or impaired immune function. 5. Initiation of, and education on LDL-lowering therapy remains insufficient, both in terms of long-term adherence to therapy and achieving current guideline directed goals of LDL-C <70mg/dL (And even lower in specific scenarios, such as repeat cardiovascular events). Quotables "It's pretty clear that this is an area where you can make a profound difference in the lives of people. It's very clear from the clinical trials that when we initiate therapies, whether it's lifestyle, through a statin, or an antihypertensive, you impact not only the quality of life, but the quantity of life. You make life better, you make life freer of disability, and you forestall death.” “The bottom line is that LDL is spent garbage liquid and it is tantamount that the body be well-equipped to remove this LDL from the central circulation, because I will argue today that it is the single most important toxin that we produce.” “If you ask what should a normal LDL be? Well, I'll tell you right now...
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Jun 13, 2021 • 49min

131. Narratives in Cardiology: Health Equity, Community Based Participatory Research, & Underrepresented Minority Women Physician-Scientists with Dr. LaPrincess Brewer

CardioNerds (Amit Goyal and Daniel Ambinder) are joined by Dr. LaPrincess Brewer and Dr. Norrisa Haynes for a Narratives in Cardiology episode, with a special introduction by Dr. Sharonne Hayes. They discuss health inequities especially in communities of color, impact of projects utilizing community based participatory research (including FAITH! and SHARP founded by Dr. Brewer and Dr. Haynes respectively), and their experiences as underrepresented minority women physician-scientists. This special discussion is brought to you in collaboration with the Association of Black Cardiologists (ABC). The ABC’s mission is to “Promote the Prevention and Treatment of Cardiovascular Disease, including Stroke, in Blacks and other Diverse Populations and to Achieve Health Equity for all through the Elimination of Disparities.” You may join and support the ABC at abcardio.org. Claim free CME just for enjoying this episode! Cardionerds Narratives in Cardiology PageCardioNerds Episode PageCardioNerds AcademyCardionerds Healy Honor Roll Subscribe to The Heartbeat Newsletter!Check out CardioNerds SWAG!Become a CardioNerds Patron! Show notes for Health Equity, Community Based Participatory Research, & Underrepresented Minority Women Physician-Scientists 1. What healthcare disparities exist in communities of color? The life expectancy of black Americans on average is 3.4 years shorter than that of white Americans. CVD is estimated to explain over 32% of the mortality difference between AA and white men and 43% of the difference between AA and white women. Together these conditions contributed to > 2 million years of life lost in the AA population between 1999-2010. (1)The impact of COVID-19 on minority communities has caused disproportionate morbidity and mortality and devastating health and financial hardship. According to the CDC, black Americans are 1.9x as likely as whites to die from COVID-19. (2) Additionally, at the beginning of the pandemic, a staggering 41% of black owned businesses closed due to COVID-19 as compared to 17% of white owned businesses. (3)  2. Community engagement & Community based participatory research (CBPR) - what is it? CBPR often has a public health bend that focuses on and attempts to address social, structural and environmental inequities through active involvement of community members in all aspects of the research process (from conception to implementation). Community partners provide their unique expertise to enhance understanding of the community and facilitate implementation. (4) 3. What is FAITH!? The Fostering African American Improvement in Total Health (FAITH) program was started by the phenomenal Dr. LaPrincess Brewer. FAITH is a cardiovascular health and wellness program that uses a CBPR approach to promote heart health in the African American faith-based community.Participants in the FAITH program have shown significant improvement in heart health knowledge. Participants have also had improvement in key heart disease risk factors such as blood pressure. The FAITH app was created in collaboration with community members to achieve easy access and easy usability. It provides vital information and a community network that provides support and motivation for participants.  4. Specifics of SHARP? SHARP stands for Safe Haircuts as We Reopen Philadelphia. SHARP was started to assist local barbershops and salons implement proper COVID-19 safety practices to keep their businesses, clients, and staff safe.  In partnership with community members, a safety blueprint was created to meet CDC and Philadelphia Health Department guidelines.  Through donations from UPenn and Accenture, SHARP was able to distribute a significant number of PPE items to 30 businesses in West and Southwest Philadelphia. Additionally, due to the financial toll that the pandemic has had on small businesses, SHARP organized grant writing sessions through the Netter Center at Penn to...

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