Join CardioNerds Co-Founder Dr. Dan Ambinder, Dr. Nino Isakadze (EP Fellow at Johns Hopkins Hospital), Dr. Karan Desai (Cardiology Faculty at Johns Hopkins Hospital and Johns Hopkins Bayview) join Digital Health Experts, Dr. Francoise Marvel (Co-Founder of Corrie Health and Co-Director of Johns Hopkins Digital Health Lab) and Dr. David Cho (Chair of the ACC Health Care Innovation Council) for another installment of the Digital Health Series. In this specific episode, we discuss pearls, pitfalls and everything in between for the emerging digital health innovator. This series is supported by an ACC Chapter Grant in collaboration with Corrie Health. Notes were drafted by Dr. Karan Desai. Audio editing was performed by student Dr. Shivani Reddy. In this series, supported by an ACC Chapter Grant and in collaboration with Corrie Health, we hope to provide all CardioNerds out there a primer on the role of digital heath in cardiovascular medicine. Use of versatile hardware and software devices is skyrocketing in everyday life. This provides unique platforms to support healthcare management outside the walls of the hospital for patients with or at risk for cardiovascular disease. In addition, evolution of artificial intelligence, machine learning, and telemedicine is augmenting clinical decision making at a new level fueling a revolution in cardiovascular disease care delivery. Digital health has the potential to bridge the gap in healthcare access, lower costs of healthcare and promote equitable delivery of evidence-based care to patients. This CardioNerds Digital Health series is made possible by contributions of stellar fellow leads and expert faculty from several programs, led by series co-chairs, Dr. Nino Isakadze and Dr. Karan Desai.   Enjoy this Circulation 2022 Paths to Discovery article to learn about the CardioNerds story, mission, and values. CardioNerds Digital Health Series PageCardioNerds Episode PageCardioNerds AcademyCardionerds Healy Honor Roll CardioNerds Journal ClubSubscribe to The Heartbeat Newsletter!Check out CardioNerds SWAG!Become a CardioNerds Patron! Pearls and Quotes - Tips for the Digital Health Innovator A critical first step in developing a digital health intervention is defining the clinical problem rather than developing the technology itself. Most digital transformations – whether in medicine or other industries – require several iterations for the technology to develop and demonstrate value. A key aspect of this iterative process was human-centered design: involving patients, their families, and other end-users early in the development of the digital health intervention. Dr. Marvel and colleagues have developed a 6-step process for innovators to consider in taking a concept to product. Notes - Tips for the Digital Health Innovator In this episode, we discussed with Dr. Marvel and Dr. Cho some general concepts on how to develop digital health interventions (DHI). DHIs have a broad definition, including any software or hardware application used to improve access, quality, efficacy or efficiency and they exist in various modalities (e.g., text message, mobile apps, wearables). Dr. Marvel has previously authored a roadmap for digital health intervention that provides guidance for an interdisciplinary approach to developing effective and evidence-based DHIs. As discussed on the episode, a critical first step is defining the clinical problem an innovator is attempting to solve instead of attempting to develop the technology solution first and then adapting it to the problem. Drs. Marvel and Cho emphasized that most digital transformations – whether in medicine or other industry – require several iterations for the technology to develop and demonstrate value. Frequent assessment in a structured manner will help the intervention mature over time. Dr. Marvel noted that a key aspect of this iterative process was human-centered design: involving patients...

Dr. Michael Cullen, distinguished clinician-educator, discusses infective endocarditis, including native and prosthetic valve endocarditis. The hosts cover the diagnosis process, surgical intervention, and the role of multidisciplinary teams in managing the condition. They also discuss how the presence of a prosthetic valve affects microbiology, imaging, and surgical planning.

Dr. Eileen Handberg, Adult Nurse Practitioner and Professor of Medicine, discusses the ESC Guidelines for blood pressure screening. The podcast explores the importance of accurate measurements, the challenges of mass hypertension, and solutions such as patient education and smartphone health apps.

The following question refers to Section 7.8 of the 2022 AHA/ACC/HFSA Guideline for the Management of Heart Failure.The question is asked by Stony Brook University Hospital medicine resident and CardioNerds Intern Dr. Chelsea Tweneboah, answered first by Mayo Clinic Cardiology Fellow and CardioNerds Academy Chief Dr. Teodora Donisan, and then by expert faculty Dr. Michelle Kittleson.The Decipher the Guidelines: 2022 AHA / ACC / HFSA Guideline for The Management of Heart Failure series was developed by the CardioNerds and created in collaboration with the American Heart Association and the Heart Failure Society of America. It was created by 30 trainees spanning college through advanced fellowship under the leadership of CardioNerds Cofounders Dr. Amit Goyal and Dr. Dan Ambinder, with mentorship from Dr. Anu Lala, Dr. Robert Mentz, and Dr. Nancy Sweitzer. We thank Dr. Judy Bezanson and Dr. Elliott Antman for tremendous guidance.Enjoy this Circulation 2022 Paths to Discovery article to learn about the CardioNerds story, mission, and values. Question #29 A 69-year-old man was referred to the cardiology clinic after being found to have a reduced left ventricular ejection fraction and left ventricular hypertrophy. For the last several months he has been experiencing progressively worsening fatigue and shortness of breath while getting to the 2nd floor in his house. He has a history of bilateral carpal tunnel syndrome and chronic low back pain. He takes no medications. On exam, his heart rate is 82 bpm, blood pressure is 86/60 mmHg, O2 saturation is 97% breathing ambient air, and BMI is 29 kg/m2. He has a regular rate and rhythm with normal S1 and S2, bibasilar pulmonary rales, and 1+ pitting edema in both legs. EKG shows normal sinus rhythm with a first-degree AV delay and low voltages. Transthoracic echocardiogram shows a moderately depressed LVEF of 35-39%, severe concentric hypertrophy with a left ventricular posterior wall thickness of 1.5 cm and strain imaging showing globally reduced longitudinal strain with apical sparring. There is also biatrial enlargement and a small pericardial effusion. A pharmacologic nuclear stress test did not reveal any perfusion defects. A gammopathy panel including SPEP, UPEP, serum and urine immunofixation studies, and serum free light chains are unrevealing. A 99mTc-Pyrophosphate scan was positive with grade 3 uptake. In addition to starting diuretics, what is the next most appropriate step for managing for this patient? A Start metoprolol succinate B Start sacubitril/valsartan C Perform genetic sequencing of the TTR gene D Perform endomyocardial biopsy Answer #29 Explanation The correct answer is C – perform genetic sequencing of the TTR gene.   This patient has findings which raise suspicion for cardiac amyloidosis. There are both cardiac (low voltages on EKG and echocardiogram showing marked LVH with biatrial enlargement and small pericardial effusion as well as a characteristic strain pattern) and extra-cardiac (bilateral carpal tunnel syndrome and low back pain) features to suggest amyloidosis. The diagnosis of cardiac amyloidosis requires a high index of suspicion and most commonly occurs due to a deposition of monoclonal immunoglobulin light chains (AL-CM) or transthyretin (ATTR-CM). ATTR may cause cardiac amyloidosis as either a pathogenic variant (ATTRv) or as a wild-type protein (ATTRwt).   Patients for whom there is a clinical suspicion for cardiac amyloidosis should have screening for serum and urine monoclonal light chains with serum and urine immunofixation electrophoresis and serum free light chains (Class 1, LOE B-NR). Immunofixation electrophoresis (IFE) is preferred because serum or urine plasma electrophoresis (SPEP or UPEP) are less sensitive. Together, measurement of serum IFE, urine IFE, and serum FLC is >99% sensitive for AL amyloidosis.

Dr. Gregg Fonarow, Professor of Medicine and Interim Chief of UCLA’s Division of Cardiology, discusses the 2022 AHA/ACC/HFSA Guideline for the Management of Heart Failure. Topics include the management of heart failure in patients with renal insufficiency and the use of hydralazine-nitrate combination therapy. The combination helps attenuate tolerance commonly seen with nitrates and preserves arterial and venous dilation. However, mortality outcomes differ, particularly in African American patients, emphasizing the need for long-term renal and cardiovascular protection.

Dr. Joshua Levenson, an expert in Cardio Oncology, discusses thromboembolic disease in Cardio-oncology. They explore risk factors and clinical biomarkers for identification. The episode also covers anticoagulation treatment for patients with acute PE, including the use of low molecular weight heparins and Coumadin. Additionally, they discuss the use of IVC filters in emergency situations and the increased risk of cardiovascular events in cancer patients with existing cardiovascular disease.

Join CardioNerds Co-Founder Dr. Dan Ambinder, Dr. Nino Isakadze (EP Fellow at Johns Hopkins Hospital), Dr. Karan Desai (Cardiology Faculty at Johns Hopkins Hospital and Johns Hopkins Bayview) join Digital Health Expert, Dr. La Princess Brewer (Associate Professor of Medicine Mayo Clinic Rochester) for another installment of the Digital Health Series. In this specific episode, we discuss how digital health can both reduce and amplify health disparities. This series is supported by an ACC Chapter Grant in collaboration with Corrie Health.  Notes were drafted by Dr. Karan Desai. Audio editing was performed by student Dr. Shivani Reddy. In this series, supported by an ACC Chapter Grant and in collaboration with Corrie Health, we hope to provide all CardioNerds out there a primer on the role of digital heath in cardiovascular medicine. Use of versatile hardware and software devices is skyrocketing in everyday life. This provides unique platforms to support healthcare management outside the walls of the hospital for patients with or at risk for cardiovascular disease. In addition, evolution of artificial intelligence, machine learning, and telemedicine is augmenting clinical decision making at a new level fueling a revolution in cardiovascular disease care delivery. Digital health has the potential to bridge the gap in healthcare access, lower costs of healthcare and promote equitable delivery of evidence-based care to patients. This CardioNerds Digital Health series is made possible by contributions of stellar fellow leads and expert faculty from several programs, led by series co-chairs, Dr. Nino Isakadze and Dr. Karan Desai.   Enjoy this Circulation 2022 Paths to Discovery article to learn about the CardioNerds story, mission, and values. CardioNerds Digital Health Series PageCardioNerds Episode PageCardioNerds AcademyCardionerds Healy Honor Roll CardioNerds Journal ClubSubscribe to The Heartbeat Newsletter!Check out CardioNerds SWAG!Become a CardioNerds Patron! Pearls and Quotes Digital redlining occurs when a particular group has limited access to key services based on race and ethnicity, perpetuating inequities. Throughout this podcast episode, Dr. Brewer emphasizes how community engagement early in the creation of digital health technologies can mitigate structural inequities.  Dr. Brewer spoke about methods to develop innovative digital health tools that are culturally sensitive and inclusive, specifically community-based participatory research (CBPR). In CBPR, community members are partners with researchers in each step of the intervention. While certain individuals and communities may have physical access to digital health tools, they still may remain inaccessible for several reasons. Notes In this episode, we focus on achieving digital health equity and how the very technologies meant to reduce health disparities can widen them. We started by discussing a paper from Dr. Brewer and colleagues that crystallized how digital health disparities can occur with the example of Pokémon Go. As described in this paper, this mobile application was one of the most used applications worldwide. It incentivized users to collect virtual goods at various physical locations termed PokéStops. For public health professionals, this mobile app represented an engaging way to promote physical activity amongst users. However, some racial and ethnic minority groups in low-income, urban areas quickly took notice of the lack of PokéStops within their neighborhoods. As researchers noted, this could be considered examples of digital redlining, or limiting a particular group from key services based on race and ethnicity. As Dr. Brewer notes in the paper, the Pokémon Go developers relied on maps that were crowdsourced from a majority white male demographic. While it may not have been deliberate, the development process created a structural digital inequity placing certain communities at a home-cour...

CardioNerds co-founder Dr. Dan Ambinder joins CardioNerds join Dr. Pooja Prasad, Dr. Khoa Nguyen and expert Dr. Abigail Khan (Assistant Professor of Medicine, Division of Cardiovascular Medicine, School of Medicine) from Oregon Health & Science University and discuss a case of mechanical valve thrombosis. Audio editing by CardioNerds Academy Intern, student doctor Adriana Mares.  A 23-year-old pregnant woman with a mechanical aortic valve presented to the maternal cardiac clinic for a follow-up visit. On physical exam, a loud grade three crescendo-decrescendo murmur was audible and transthoracic echocardiography revealed severely elevated gradients across the aortic valve.  Fluoroscopy confirmed an immobile leaflet disk. Thrombolysis was successfully performed using a low dose ultra-slow infusion of thrombolytic therapy, leading to normal valve function eight days later. Treatment options for mechanical aortic valve thrombosis include slow-infusion, low-dose thrombolytic therapy or emergency surgery. In addition to discussing diagnosis and management of mechanical valve thrombosis, we highlight the importance of preventing valve thrombosis during the hypercoagulable state of pregnancy with careful pre-conception counseling and a detailed anticoagulation plan. See this case published in European Heart Journal - Case Reports. US Cardiology Review is now the official journal of CardioNerds! Submit your manuscript here. 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! Pearls - mechanical valve thrombosis The hypercoagulable state of pregnancy presents a risk for women with mechanical heart valves with contemporary data estimating the rate of valve thrombosis during pregnancy at around 5%. Thrombolytic therapy is a (relatively) safe alternative to surgery and should be considered first line for treatment of prosthetic valve thrombosis in all patients, especially in pregnant women. Pre-conception counselling and meticulous anticoagulation management for patients with mechanical heart valves are key aspects of their care. The evaluation for prosthetic valve thrombosis in pregnant persons requires a review of anti-coagulation history and careful choice of diagnostic testing to confirm the diagnosis and minimize risks to the parent and the baby. Multi-disciplinary care with close collaboration between cardiology and obstetrics is critical when caring for pregnant persons with cardiac disease. Show Notes - mechanical valve thrombosis How can we counsel and inform women with heart disease who are contemplating pregnancy? Use the Modified World Health Organization classification of maternal cardiovascular risk to counsel patients on their maternal cardiac event rate and recommended follow-up visits and location of delivery (local or expert care) if pregnancy is pursued. To learn about normal pregnancy cardiovascular physiology and pregnancy risk stratification in persons with cardiovascular disease, enjoy CardioNerds Episode #111. Cardio-Obstetrics: Normal Pregnancy Physiology with Dr. Garima Sharma. Adapted from the 2018 ESC Guidelines for the management of cardiovascular diseases during pregnancy What is the differential diagnosis for a new murmur in a pregnant person who has undergone heart valve replacement? Normal physiology - elevated flow from hyperdynamic state and/or expansion of blood volume in pregnancy. Pathologic - increased left ventricular outflow tract flow from turbulence of flow due to pannus ingrowth, new paravalvular leak, or obstructive mechanical disk motion from vegetation or thrombus. What are diagnostic modalities for the evaluation of suspected prosthetic valve thrombosis? The 2020 ACC/AHA guidelines gave a class I recommendation for evaluation of susp...

The following question refers to Section 4.5 of the 2021 ESC CV Prevention Guidelines. The question is asked by Dr. Maryam Barkhordarian, answered first by pharmacy resident Dr. Anushka Tandon, and then by expert faculty Dr. Noreen Nazir. Dr. Nazir is Assistant Professor of Clinical Medicine at the University of Illinois at Chicago, where she is the director of cardiac MRI and the preventive cardiology program. The CardioNerds Decipher The Guidelines Series for the 2021 ESC CV Prevention Guidelines represents a collaboration with the ACC Prevention of CVD Section, the National Lipid Association, and Preventive Cardiovascular Nurses Association. Enjoy this Circulation 2022 Paths to Discovery article to learn about the CardioNerds story, mission, and values. Question #33 Mr. V is a 37-year-old man who presents to clinic after a recent admission for anterior STEMI and is status-post emergent percutaneous intervention to the proximal LAD. He has mixed hyperlipidemia and a 10 pack-year history of (current) tobacco smoking. Which of the following points related to tobacco use is LEAST appropriate for today’s visit? A Providing assessment and encouragement for smoking cessation, even if for only a 30-second “very brief advice” intervention. B Reviewing and offering pharmacotherapy support options for smoking cessation if Mr. V expresses readiness to quit today. C Recommending a switch from traditional cigarettes to e-cigarettes as a first step towards cessation, as e-cigarettes are safer for use. D Discussing that smoking cessation is strongly recommended for all patients, regardless of potential weight gain. Answer #33 Explanation Answer C is LEAST appropriate and therefore is the correct answer. Answer C is not appropriate. Although e-cigarettes may be more effective than nicotine replacement therapy (NRT) for smoking cessation, the long-term effects of e-cigarettes on cardiovascular and pulmonary health are unknown. According to the 2019 ACC/AHA prevention guidelines, e-cigarettes may increase the risk of CV and pulmonary diseases; their use has been reportedly associated with arrhythmias and hypertension. Therefore, neither the ESC nor ACC/AHA suggest clinicians recommend e-cigarettes over traditional cigarettes to patients. Answer A: Smoking cessation is one of the most effective CVD risk-lowering preventive measures, with significant reductions in (repeat) myocardial infarctions or death. ESC guidelines emphasize the importance of encouraging smoking cessation even in settings where time is limited. “Very brief advice” on smoking is a proven 30-second clinical intervention, developed in the UK, which identifies smokers, advises them on the best method of quitting, and supports subsequent quit attempts. While ESC does not explicitly suggest a frequency of assessment, the 2019 ACC/AHA guidelines specifically recommend that “all adults should be assessed at every healthcare visit for tobacco use and their tobacco use status recorded as a vital sign to facilitate tobacco cessation.” Answer B: The ESC suggests (class 2) that offering follow-up support, nicotine replacement therapy, varenicline, and bupropion individually or in combination should be considered in smokers. A meta-analysis of RCTs in patients with ASCVD reflects that varenicline (RR 2.6), bupropion (RR 1.4), telephone therapy (RR 1.5), and individual counselling (RR 1.6) all increased quit rates versus placebo; NRT therapies were well-tolerated but had inconclusive effects on quit rates (RR 1.22 with 95% CI 0.72-2.06). The 2019 ACC/AHA recommendation to combine behavioral and pharmacotherapy interventions to maximize quit rates is a class 1 recommendation. Answer D: The ESC gives a class 1 recommendation to recommending smoking cessation regardless of weight grain. Smokers who quit may expect an average weight gain of 5 kg, but the health benefits of tobacco cessation (both CVD and non-CVD related) consistently outweigh risks from weight...

The following question refers to Section 7.2 of the 2022 AHA/ACC/HFSA Guideline for the Management of Heart Failure. The question is asked by Cleveland Clinic internal medicine resident and CardioNerds Intern Akiva Rosenzveig, answered first by UPMC Harrisburg cardiology fellow and CardioNerds Academy House Faculty Leader Dr. Ahmed Ghoneem, and then by expert faculty Dr. Randall Starling. Dr. Starling is Professor of Medicine and an advanced heart failure and transplant cardiologist at the Cleveland Clinic where he was formerly the Section Head of Heart Failure, Vice Chairman of Cardiovascular Medicine, and member of the Cleveland Clinic Board of Governors. Dr. Starling is also Past President of the Heart Failure Society of America in 2018-2019. Dr. Staring was among the earliest CardioNerds faculty guests and has since been a valuable source of mentorship and inspiration. Dr. Starling’s sponsorship and support was instrumental in the origins of the CardioNerds Clinical Trials Program.  The Decipher the Guidelines: 2022 AHA / ACC / HFSA Guideline for The Management of Heart Failure series was developed by the CardioNerds and created in collaboration with the American Heart Association and the Heart Failure Society of America. It was created by 30 trainees spanning college through advanced fellowship under the leadership of CardioNerds Cofounders Dr. Amit Goyal and Dr. Dan Ambinder, with mentorship from Dr. Anu Lala, Dr. Robert Mentz, and Dr. Nancy Sweitzer. We thank Dr. Judy Bezanson and Dr. Elliott Antman for tremendous guidance. Enjoy this Circulation 2022 Paths to Discovery article to learn about the CardioNerds story, mission, and values. Question #27 Which of the following sentences regarding diuretics in the management of heart failure is correct? A In HF patients with minimal congestive symptoms, medical management with diuretics alone is sufficient to improve outcomes. B Prescribing a loop diuretic on discharge after a HF hospitalization may improve short term mortality and HF rehospitalization rates. C The combination of thiazide (or thiazide-like) diuretics with loop diuretics is preferred to higher doses of loop diuretics in patients with HF and congestive symptoms. D The maximum daily dose of furosemide is 300 mg. Answer #27 Explanation Choice B in correct. The guidelines give a Class 1 recommendation for diuretics in HF patients who have fluid retention to relieve congestion, improve symptoms, and prevent worsening heart failure. Recent data from the non-randomized OPTIMIZE-HF (Organized Program to Initiate Lifesaving Treatment in Hospitalized Patients with Heart Failure) registry revealed reduced 30-day all-cause mortality and hospitalizations for HF with diuretic use compared with no diuretic use after hospital discharge for HF. Choice A is incorrect. With the exception of mineralocorticoid receptor antagonists (MRAs), the effects of diuretics on morbidity and mortality are uncertain. As such, diuretics should not be used in isolation, but always combined with other GDMT for HF that reduce hospitalizations and prolong survival. Choice C is incorrect. The use of a thiazide or thiazide-like diuretic (e.g., metolazone) in combination with a loop diuretic inhibits compensatory distal tubular sodium reabsorption, leading to enhanced natriuresis. In a propensity-score matched analysis in patients with hospitalized HF, the addition of metolazone to loop diuretics was found to increase the risk for hypokalemia, hyponatremia, worsening renal function, and mortality, whereas use of higher doses of loop diuretics was not found to adversely affect survival. The guidelines recommend that the addition of a thiazide (e.g., metolazone) to treatment with a loop diuretic should be reserved for patients who do not respond to moderate- or high-dose loop diuretics to minimize electrolyte abnormalities (Class...