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Cardionerds: A Cardiology Podcast: Daily Summaries Delivered
by CardioNerds
Welcome to CardioNerds, where we bring you in-depth discussions with leading experts, case reports, and updates on the latest advancements in the world of cardiology. Tune in to expand your knowledge, sharpen your skills, and become a true CardioNerd!
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The most recent episodes — sign up to get AI-powered summaries of each one.
- 6 days ago42 min
454. ACHD Surgery 101: Thinking Like a Surgeon with Elizabeth Stephens
CardioNerds (Drs. Rawan Amir, Tripti Gupta, and Alysha Joseph) discuss the fundamentals of adult congenital heart disease (ACHD) surgery with Dr. Elizabeth Stephens.  Audio editing by CardioNerds academy intern, Grace Qiu.  Using a case of a young adult undergoing a Ross procedure, the episode walks through what happens in the operating room—from induction and intraoperative transesophageal echocardiography (TEE) to cardiopulmonary bypass (CPB), myocardial protection, and surgical repair. The discussion highlights key concepts including cardioplegia, cross-clamp and bypass times, hypothermic circulatory arrest, and the complexity of redo sternotomy. This episode provides learners with a practical framework to interpret operative reports, anticipate postoperative physiology, and better collaborate with surgical teams. This episode was produced by the CardioNerds ACHD Council and planned by Dr. Rawan Amir.  CardioNerds Adult Congenital Heart Disease PageCardioNerds Episode Page Pearls “LV distension kills patients.”Preventing left ventricular distension with appropriate venting and awareness of aortic insufficiency is critical to intraoperative safety.  TEE can change the surgical plan in real time.Findings such as underestimated aortic regurgitation, mitral pathology, or a PFO may directly alter cannulation and cardioplegia strategy.  Cross-clamp time = myocardial ischemic time; bypass time = systemic stress.Both are key predictors of postoperative complications including renal injury, bleeding, and ventricular dysfunction.  Redo sternotomy risk is driven by anatomy, not just number.Aorta adherent to the sternum, conduit position, and chamber pressurization define risk more than the number of prior surgeries.  Think longitudinally—ACHD surgery is lifetime planning.Surgical materials and strategies must account for future interventions, especially in younger patients. Notes: Notes drafted by Dr. Alysha Joseph, aided by generative artificial intelligence. What are the key steps in congenital cardiac surgery from incision to closure? Preoperative planning is multidisciplinary, involving surgeon, anesthesia, cardiology, and ICU teams; high-risk inductions (e.g., critical AS, Williams syndrome) are identified early TEE is performed immediately after induction to reassess anatomy and may reveal new findings (e.g., underestimated AI, mitral disease, PFO) Median sternotomy is performed, followed by creation of a pericardial well to optimize exposure Heparin is administered prior to cannulation; arterial and venous cannulas are placed for initiation of CPB Cross-clamp is applied and cardioplegia delivered to arrest the heart, allowing a still and protected operati
- 1 weeks ago10 min
453. ACS Guidelines Question #1 with Dr. Sunil Rao – Vascular Access
The following question refers to Section 7.1 of the 2025 ACS Guidelines. The question is asked by Thomas Jefferson medical student and CardioNerds Academy Intern Dr. Grace Qiu, answered first by University of Michigan fellow and CardioNerds FIT Ambassador Dr. Kayla Secrest, and then by expert faculty Dr. Sunil Rao. Dr. Rao is an interventional cardiologist, Professor of Medicine at NYU Grossman School of Medicine, Deputy Director of the Leon H. Charney Division of Cardiology, and the Director of Interventional Cardiology for the NYU Langone Health System. He is the Editor-in-Chief for Circulation Cardiovascular Interventions and was the Chair of the Writing Committee for the 2025 ACS Guidelines. Question #1 A 68-year-old man with a history of hypertension, hyperlipidemia, stage III chronic kidney disease, and prior tobacco use presents to a local emergency department with reports of chest pain while raking leaves at home. Upon arrival, he is hemodynamically stable with a heart rate of 86 beats per minute and a blood pressure of 133/85 mmHg. His EKG reveals ST elevations in the septal and anterior leads (V1-V4). He is given 324mg of aspirin and is promptly evaluated by the interventional cardiology team, who elects to take him emergently to the catheterization lab. Upon arrival to the catheterization lab, the nurse asks the interventional fellow which access sites they should prep for this case? How should the interventional fellow respond? A Right radial artery only B Radial + bilateral femoral C Bilateral femoral only Answer #1 Explanation The correct answer is B. Radial and bilateral femoral Radial artery access is the preferred vascular access site for coronary angiography and PCI in patients with ACS. Transradial access has been shown to reduce mortality, bleeding, and vascular complications compared with transfemoral access (Class I, LOE A). Radial access also allows earlier ambulation and is associated with greater patient comfort. Although the right radial artery is the most widely studied upper-extremity access site, alternative sites such as the ulnar and distal radial arteries have demonstrated similar outcomes. However, the radial artery may be required as a bypass conduit for CABG. In institutions where the radial artery is routinely used for surgical grafting, this potential future use should be considered when selecting vascular access. In addition, transfemoral access—preferably performed with ultrasound guidance—should be considered in patients in whom temporary mechanical circulatory support (MCS) is anticipated or in those for whom radial access is not feasible due to anatomical or technical constraints. Prepping bilateral groins in addition to the radial artery provides a backup strategy for urgent MCS placement or for transition to femoral access should radial access fail. For these reasons, prepping both the radial artery and bilateral groins is the most appropriate response. Radial-only preparation is incorrect because, although radial access is preferred, patients with STEMI may still require emergent MCS or alternative access if the radial artery is unsuitable. Preparing only the wrist without backup femoral access may delay care should hemodynamic instability occur. Femoral-only preparation is incorrect because transradial access provides superior outcomes in ACS, including significant reductions in all-cause mortality, major bleeding, and vascular complications. RCTs and meta-analyses, including MATRIX (which showed lower MACE
- 2 weeks ago25 min
452. Risk stratification in Acute Pulmonary Embolism with Dr. Stavros Konstantinides
CardioNerds (Dr. Billy-Joe Mullinax, Dr. Dinu Balanescu, and Dr. Jane Ehret) discuss risk stratification in acute pulmonary embolism with Dr. Stavros Konstantinides, Chair of the 2019 ESC Pulmonary Embolism Guidelines. Using a real-world case, this episode explores how modern PE care has moved beyond “massive” and “submassive” labels toward a dynamic, physiology-based approach. The discussion highlights the limitations of static risk scores, the importance of right ventricular dysfunction and biomarkers, and why normotension does not imply stability. Special emphasis is placed on intermediate-high risk PE, early identification of impending hemodynamic collapse, and the role of lactate, serial reassessment, and PERT teams in guiding escalation of care. Audio editing by CardioNerds intern, Joshua Khorsandi.The 2026 American multi-society PE guidelines were published after this episode was recorded. Dr. Dinu Balanescu and Dr. Billy-Joe Mullinax are Co-chairs for the CardioNerds PE Series, developed in collaboration with the PERT Consortium.   Enjoy this Circulation 2022 Paths to Discovery article to learn about the CardioNerds story, mission, and values. CardioNerds Pulmonary Embolism PageCardioNerds Episode PageCardioNerds AcademyCardionerds Healy Honor Roll CardioNerds Journal ClubSubscribe to The Heartbeat Newsletter!Check out CardioNerds SWAG!Become a CardioNerds Patron! <hr class="wp-block-separator has-text-color has-vivid-cyan-blue-color has-css-opacity has-vivid-cyan-blue-bac
- 2 weeks ago46 min
151: CCTA, CT-FFR, and AI Plaque Analysis to Personalize CAD Detection, Prevention, and Management with Dr. Michael Gallagher
CardioNerds Dr. Joseph Kassab, Dr. Mariana Garcia-Arango, and Dr. Christopher Mason explore the technological revolution of Coronary CT Angiography (CCTA) with expert faculty Dr. Michael Gallagher. The discussion details how CCTA has evolved into a frontline diagnostic and preventive tool, moving beyond simple anatomy to incorporate physiology via CT-FFR and biology through AI-driven plaque quantification. The episode reviews landmark evidence like the SCOT-HEART and PROMISE trials, the nuances of CAD-RADS 2.0 reporting, and the emerging role of AI in monitoring treatment response and personalizing cardiovascular care. Critically, they also discuss some of the assumptions and limitations of these techniques. Stay tuned for a matching review article to be submitted to US Cardiology Review, the official Journal of CardioNerds. This episode was supported by an independent medical education grant from HeartFlow. All CardioNerds education is planned, produced, and reviewed solely by CardioNerds.  Enjoy this Circulation Paths to Discovery article to learn more about the CardioNerds mission and journey. US Cardiology Review is now the official journal of CardioNerds! Submit your manuscripts here. CardioNerds Multimodality Cardiovascular Imaging PageCardioNerds Episode PageCardioNerds AcademyCardionerds Healy Honor Roll Pearls Shift in Paradigm: CCTA is no longer just an anatomic test; with some key limitations, it can provide anatomy, physiology (CT-FFR), and plaque biology (AI-CPA) in a single non-invasive scan. The “Power of Zero” vs. Plaque: While a normal CCTA has a >95% negative predictive value, future MIs often arise from non-obstructive plaque that traditional stress tests might miss. CAD-RADS 2.0
- 3 weeks ago19 min
450. Journal Club: The I-CLASS Registry with Dr. Theofanie Mela and Dr. Pugazhendhi Vijayraman
Join CardioNerds EP Council Chair Dr. Naima Maqsood and Episode Lead Dr. Sukriti Banthiya as they discuss the results of the International Collaborative LBBAP Study (I-CLAS) with expert faculty Dr. Theofanie Mela and Dr. Pugazhendhi Vijayraman. Audio editing by CardioNerds academy intern, Grace Qiu. The International Collaborative LBBAP Study (I-CLAS) evaluated clinical outcomes between biventricular pacing (BVP) and left bundle branch area pacing (LBBAP) in patients with left ventricular ejection fraction (LVEF) ≤50% undergoing cardiac resynchronization therapy. Between January 2018 and June 2023, 2,579 patients were enrolled across 18 centers. The primary composite outcome was defined as all-cause mortality or heart failure hospitalization. LBBAP demonstrated a shorter paced QRS duration and was associated with a lower risk of primary composite outcome and heart failure hospitalization. No significant difference was observed in all-cause mortality. Additionally, procedural complications were lower with LBBAP. This episode was planned in collaboration with Heart Rhythm TV with mentorship from Dr. Daniel Alyesh and Dr. Mehak Dhande.  Enjoy this Circulation 2022 Paths to Discovery article to learn about the CardioNerds story, mission, and values. US Cardiology Review is now the official journal of CardioNerds! Submit your manuscript here. CardioNerds Journal Club PageCardioNerds Episode PageCardioNerds AcademyCardionerds Healy Honor Roll CardioNerds Journal ClubSubscribe to The Heartbeat Newsletter!Check out CardioNerds SWAG!Become a CardioNerds Patron! <h3 class="wp-
- 3 weeks ago37 min
449. Atrial Fibrillation: Challenging Scenarios in Atrial Fibrillation Management with Dr. Bradley Knight
In this episode, CardioNerds Dr. Colin Blumenthal, Dr. Kelly Arps, and Dr. Yong Hao Yeo are joined by electrophysiology expert Dr. Bradley Knight to discuss atrial fibrillation (AF) management in challenging clinical scenarios. We explore arrhythmias in patients with pre-excitation syndromes, particularly Wolff-Parkinson-White (WPW) syndrome, and strategies for rhythm control. We also discuss AF management in pregnancy, adult congenital heart disease, and patients with tachycardia-bradycardia (tach-brady) syndrome. This episode provides essential insights into nuanced decision-making for the care of patients with complex arrhythmia profiles. Audio editing by CardioNerds academy intern, Grace Qiu. Enjoy this Circulation 2022 Paths to Discovery article to learn about the CardioNerds story, mission, and values. CardioNerds Atrial Fibrillation PageCardioNerds Episode PageCardioNerds AcademyCardionerds Healy Honor Roll CardioNerds Journal ClubSubscribe to The Heartbeat Newsletter!Check out CardioNerds SWAG!Become a CardioNerds Patron! PEARLS AF in WPW is a true emergency—AV nodal blocking agents can be deadly. In patients with WPW syndrome, AF can rapidly conduct through the accessory pathway, risking ventricular fibrillation and sudden death. Avoid AV nodal blockers like beta-blockers and calcium channel blockers. Catheter ablation is the first-line rhythm control strategy in WPW. Catheter ablation carries a Class I recommendation and offers >90% success. If antiarrhythmic drugs are needed, sodium channel blockers like flecainide or propafenone are preferred in patients without structural heart disease. In pregnancy, protecting the mother is protecting the fetus. An unstable mother means an unstable fetus. Rate control is the first step in AF with ra
- Apr 30, 202641 min
448. The Braunwald Chronicles: The Complete Series — A CardioNerds Tribute to Dr. Eugene Braunwald
CardioNerds (Amit Goyal, Daniel Ambinder, Carine Hamo, and Karan Desai) are honored to bring you The Braunwald Chronicles — a special tribute to the life and legacy of Dr. Eugene Braunwald. Originally released as a 6-part series, we are now bringing these chapters together as one complete experience. These are stories of discovery, innovation, accidents, perseverance, and more… truly, these are the stories of cardiology itself — told firsthand by the father of modern cardiology. Dr. Braunwald’s life and work form the very foundation of contemporary cardiovascular medicine, and his story is, in many ways, the story of our field. Join us as we journey through the history of cardiology across six extraordinary chapters — from the early days of physiologic discovery, to the development of transseptal access, to defining the natural history of valvular disease, to shaping modern therapies for myocardial infarction, and beyond. Through it all, Dr. Braunwald reflects on the principles that guided his career — curiosity, perseverance, mentorship, and the importance of being in the right place, at the right time, with the right people.We hope this collection serves not only as an educational experience, but as a tribute to one of the greatest minds in the history of medicine. We thank Dr. Karan Desai, Editorial APD with the CardioNerds Academy and fellow at the University of Maryland, for all the work he put into designing The Braunwald Chronicles. Audio editing by Pace Wetstein. CardioNerds Braunwald Chronicles Series PageCardioNerds Episode PageCardioNerds AcademyCardionerds Healy Honor Roll CardioNerds Journal ClubSubscribe to The Heartbeat Newsletter!Check out CardioNerds SWAG!Become a CardioNerds Patron!
- Apr 24, 202642 min
447. Pulmonary Embolism: Approach to Systemic Thrombolysis in Acute Pulmonary Embolism with Dr. Allison Burnett
CardioNerds Drs. Dinu Balanescu, Billy-Joe Mullinax, and Mariana Garcia discuss systemic thrombolysis in pulmonary embolism with expert Dr. Allison Burnett. Audio editing by CardioNerds Academy intern, student doctor, Pace Wetstein. Pulmonary embolism is the third leading cause of cardiovascular death in the US, and high-risk PE carries a 30-day mortality risk as high as 30-50%. In this episode, we discuss the indications for systemic thrombolysis, including high-risk PE and cardiac arrest. We addressed how to appropriately select candidates for systemic thrombolysis, balancing the high risk of bleeding. Additionally, we discussed anticoagulation management and timing concurrent with lytic therapy, as well as the importance of multidisciplinary PERT teams.  The 2026 American multi-society PE guidelines were published after this episode was recorded. Dr. Dinu Balanescu and Dr. Billy-Joe Mullinax are Co-chairs for the CardioNerds PE Series, developed in collaboration with the PERT Consortium. Enjoy this Circulation 2022 Paths to Discovery article to learn about the CardioNerds story, mission, and values. CardioNerds Pulmonary Embolism PageCardioNerds Episode PageCardioNerds AcademyCardionerds Healy Honor Roll CardioNerds Journal ClubSubscribe to The Heartbeat Newsletter!Check out CardioNerds SWAG!Become a CardioNerds Pa
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Welcome to CardioNerds, where we bring you in-depth discussions with leading experts, case reports, and updates on the latest advancements in the world of cardiology. Tune in to expand your knowledge, sharpen your skills, and become a true CardioNerd!
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