Episodios

  • 424. Treatment of Transthyretin Amyloid Cardiomyopathy (ATTR-CM) with Dr. Justin Grodin
    Aug 19 2025
    CardioNerds (Drs. Rick Ferraro and Georgia Vasilakis Tsatiris) discuss ATTR cardiac amyloidosis with expert Dr. Justin Grodin. This episode is a must-listen for all who want to know how to diagnose and treat ATTR with current available therapies, as well as management of concomitant diseases through a multidisciplinary approach. We take a deep dive into the importance of genetic testing, not only for patients and families, but also for gene-specific therapies on the horizon. Dr. Grodin draws us a roadmap, guiding us through new experimental therapies that may reverse the amyloidosis disease process once and for all. Audio editing by CardioNerds academy intern, Christiana Dangas. This episode was developed in collaboration with the American Society of Preventive Cardiology and supported by an educational grant from BridgeBio. 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 Cardiac Amyloid PageCardioNerds Episode Page Pearls: You must THINK about your patient having amyloid to recognize the pattern and make the diagnosis. Start with a routine ECG and TTE, and look for a disproportionately large heart muscle with relatively low voltages on the ECG. Before you diagnose ATTR amyloidosis, AL amyloidosis must be ruled out (or ruled in) with serum light chains, serum/urine immunofixation, and/or tissue biopsy. Genetic testing is standard of care for all patients and families with ATTR amyloidosis, and the future is promising for gene-specific treatments. Current FDA-approved treatments for TTR amyloidosis are TTR stabilizers and TTR silencers, but TTR fibril-depleting agents are on their way. Early diagnosis of ATTR affords patients maximal benefit from current amyloidosis therapies. TTR amyloidosis patients require a multidisciplinary approach for success, given the high number of concomitant diseases with cardiomyopathy. Notes: Notes: Notes drafted by Dr. Georgia Vasilakis Tsatiris. What makes you most suspicious of a diagnosis of cardiac amyloidosis from the typical heart failure patient? You must have a strong index of suspicion, meaning you THINK that the patient could have cardiac amyloidosis, to consider it diagnostically. Some characteristics or “red flags” to not miss: Disproportionately thick heart muscle with a relatively low voltages on EKG Bilateral carpal tunnel syndrome – estimated that 1 in 10 people >65 years old will have amyloidosis Previously tolerated antihypertensive medications Atraumatic biceps tendon rupture Bilateral carpal tunnel syndrome Spinal stenosis Concomitant with other diseases: HFpEF, low-flow low-gradient aortic stenosis How would you work up a patient for cardiac amyloidosis? Start with a routine ECG (looking for disproportionally low voltage) and routine TTE (looking for thick heart muscle) CBC, serum chemistries, hepatic function panel, NT proBNP, and troponin levels NOTE: It is critical to differentiate between amyloid light chain (AL amyloidosis) and transthyretin ATTR amyloidosis, as both make up 95-99% of amyloidosis cases. Obtain serum free light chains, serum & urine electrophoresis, and serum & urine immunofixation to rule out AL amyloidosis. (See table below) AL Amyloidosis ATTR Amyloidosis → Positive serum free light chains and immunofixation (Abnormal M protein) → Tissue biopsy (endomyocardial, fat pad) to confirm diagnosis → Negative serum free light chains and immunofixation (ruled out AL amyloidosis) → Cardiac scintigraphy (Technetium pyrophosphate with SPECT imaging) What treatment options do we have to offer now for ATTR CM, and how has this compared to prior years? Before 2019, treatment options were limited outside of cardiac tr...
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    45 m
  • 423. Case Report: The Malignant Murmur – More Than Meets the Echo in Nonbacterial Thrombotic Endocarditis – Baylor College of Medicine
    Aug 3 2025
    CardioNerds (Dr. Rick Ferraro and Dr. Dan Ambinder) join Dr. Sahar Samimi and Dr. Lorraine Mascarenhas from Baylor College of Medicine, Houston, Texas, at the Houston Rodeo for some tasty Texas BBQ and a tour of the lively rodeo grounds to discuss an interesting case full of clinical pearls involving a patient with nonbacterial thrombotic endocarditis (NBTE). Expert commentary is provided by Dr. Basant Arya. Episode audio was edited by CardioNerds Intern Dr. Bhavya Shah. (Photo by Xu Jianmei/Xinhua via Getty Images)Xinhua News Agency via Getty Images We discuss a case of a 38-year-old woman with advanced endometrial cancer who presents with acute abdominal pain, found to have splenic and renal infarcts, severe aortic regurgitation, and persistently negative blood cultures, ultimately diagnosed with nonbacterial thrombotic endocarditis (NBTE). We review the definition and pathophysiology of NBTE in the context of malignancy and hypercoagulability, discuss initial evaluation and echocardiographic findings, and highlight important management considerations. Emphasis is placed on the complexities of anticoagulation choice, the role of valvular surveillance, and the need for coordinated, multidisciplinary care. 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- Nonbacterial Thrombotic Endocarditis Eliminate the Usual Suspects. NBTE is a diagnosis of exclusion! Always rule out infective endocarditis (IE) first with serial blood cultures and serologic tests. More than Meets the Echo. Distinguishing NBTE from culture-negative endocarditis can be tricky. Look beyond the echo—focus on clinical context (underlying malignancy, autoimmune issues) and lab findings to clinch the diagnosis. TEE for the Win... Mostly. While TEE is more sensitive than TTE, NBTE vegetations can be sneaky and may embolize quickly. Don’t hesitate to use advanced imaging (i.e., cardiac MRI, CTA) or repeat imaging if you still suspect NBTE. Choose your champion. In cancer-associated NBTE, guideline recommendations for anticoagulation choice are lacking. Consider DOACs and LMWH as agents of choice, but ultimately use shared decision-making to guide management. No obvious trigger? Go hunting for hidden malignancies or autoimmune disorders. A thorough workup is essential to uncover the driving force behind NBTE. Check out this state-of-the-art review for a comprehensive, one-stop summary of NBTE: European Heart Journal, 46(3), 236–245. Please note that the figures and tables referenced in the following notes are adapted from this review. notes- Nonbacterial Thrombotic Endocarditis Notes were drafted by Dr. Sahar Samimi. What is nonbacterial thrombotic endocarditis (NBTE)? NBTE, previously known as marantic endocarditis, is a rare condition in which sterile vegetations form on heart valves.1 It occurs most commonly in association with malignancies and autoimmune conditions (i.e, antiphospholipid antibody syndrome or systemic lupus erythematosus).1 In addition, NBTE has been reported in association with COVID-19 infection, burns, sepsis, and indwelling catheters.2 Precise mechanisms remain unclear, but an interplay of endothelial injury, hypercoagulability, hypoxia, and immune complex deposition contributes to the formation of these sterile vegetations. 1 How do we diagnose NBTE? Physicians should have a high level of suspicion for NBTE in at-risk patients (e.g., with active malignancy) who present with recent or recurrent embolic events (i.e., stroke, splenic, renal, or mesenteric infarct, and acute coronary syndrome).1
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    16 m
  • 422. Diagnosis of Transthyretin Amyloid Cardiomyopathy (ATTR-CM) with Dr. Venkatesh Murthy
    Jul 25 2025
    Drs. Rick Ferraro and Sneha Nandy discuss ‘Diagnosis of ATTR Cardiac Amyloidosis’ with Dr. Venkatesh Murthy. In this episode, we explore the diagnosis of ATTR cardiac amyloidosis, a condition once considered rare but now increasingly recognized due to advances in imaging and the availability of effective therapies. Dr. Venkatesh Murthy, a leader in multimodality imaging, discusses key clinical and laboratory features that should raise suspicion for the disease. We also examine the role of nuclear imaging and genetic testing in confirming the diagnosis, as well as the importance of early detection. Tune in for expert insights on navigating this challenging diagnosis and look out for our next episode on treatment approaches for cardiac amyloidosis! Audio editing for this episode was performed by CardioNerds Intern, Julia Marques Fernandes. 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 Cardiac Amyloid PageCardioNerds Episode Page Pearls: - Diagnosis of Transthyretin amyloid cardiomyopathy 1. Recognizing the Red Flags – ATTR cardiac amyloidosis often presents with subtle but telling signs, such as bilateral carpal tunnel syndrome, low-voltage ECG, and a history of lumbar spinal stenosis or biceps tendon rupture. If you see these features in a patient with heart failure symptoms, think amyloidosis! 2. “Vanilla Ice Cream with a Cherry on Top” – On strain echocardiography, apical sparing is a classic pattern for cardiac amyloidosis. While helpful, it’s not foolproof—multimodal imaging and clinical suspicion are key! 3. Nuclear Imaging is a Game-Changer – When suspicion for cardiac amyloidosis is high à a positive PYP scan with SPECT imaging (grade 2 or 3 myocardial uptake) in the absence of monoclonal protein (ruled out by SPEP, UPEP, and free light chains) is diagnostic for ATTR amyloidosis—no biopsy needed! 4. Wild-Type vs. Hereditary? Know the Clues – Older patients (70+) are more likely to have wild-type ATTR, while younger patients (40s-60s), especially those with neuropathy and a family history of heart failure, should raise suspicion for hereditary ATTR. Genetic testing is crucial for distinguishing between the two. Note that some ATTR variants may predispose to a false negative PYP scan! 5. Missing Amyloidosis = Missed Opportunity – With multiple disease-modifying therapies now available, early diagnosis is critical. If you suspect cardiac amyloidosis, don’t delay the workup—early treatment improves outcomes! Notes - Diagnosis of Transthyretin amyloid cardiomyopathy What clinical features should raise suspicion for ATTR cardiac amyloidosis? ATTR cardiac amyloidosis is underdiagnosed because symptoms overlap with other forms of heart failure. Red flags include bilateral carpal tunnel syndrome (often years before cardiac symptoms), low-voltage ECG despite increased LV wall thickness, heart failure with preserved ejection fraction (HFpEF) with a restrictive pattern, and history of lumbar spinal stenosis, biceps tendon rupture, and/or peripheral neuropathy, including possible autonomic dysfunction (e.g., orthostatic hypotension). Remember: If an older patient presents with heart failure and unexplained symptoms like neuropathy or musculoskeletal issues, think amyloidosis! What is the differential diagnosis for a thick left ventricle (LVH) and how does ATTR amyloidosis fit into it? Hypertension: Most common cause of LVH, typically with a history of uncontrolled high blood pressure. Aortic stenosis: May present with concentric LVH. Hypertrophic cardiomyopathy (HCM): Genetic disorder typically presenting with asymmetric LVH, especially in younger patients. Infiltrative cardiomyopathy: Often due to amyloidosis, sarcoidosis,
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    14 m
  • 421. Case Report: Switched at Birth: A Case of Congenital Heart Disease Presenting in Adulthood – New York Presbyterian Queens
    Jul 10 2025
    CardioNerds (Dr. Claire Cambron and Dr. Rawan Amir) join Dr. Ayan Purkayastha, Dr. David Song, and Dr. Justin Wang from NewYork-Presbyterian Queens for an afternoon of hot pot in downtown Flushing. They discuss a case of congenital heart disease presenting in adulthood. Expert commentary is provided by Dr. Su Yuan, and audio editing for this episode was performed by CardioNerds Intern, Julia Marques Fernandes. A 53-year-old woman with a past medical history of hypertension visiting from Guyana presented with 2 days of chest pain. EKG showed dominant R wave in V1 with precordial T wave inversions. Troponin levels were normal, however she was started on therapeutic heparin with plan for left heart catheterization. Her chest X-ray revealed dextrocardia and echocardiogram was suspicious for the systemic ventricle being the morphologic right ventricle with reduced systolic function and the pulmonic ventricle being the morphologic left ventricle. Patient underwent coronary CT angiography which confirmed diagnosis of congenitally corrected transposition of the great arteries (CCTGA) as well as minimal non-obstructive coronary artery disease. Her chest pain spontaneously improved and catheterization was deferred. Patient opted to follow with a congenital specialist back in her home country upon discharge. 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- A Case of Congenital Heart Disease Presenting in Adulthood Congenitally Corrected Transposition of the Great Arteries (CCTGA) is a rare and unique structural heart disease which presents as an isolated combination of atrioventricular and ventriculoarterial discordance resulting in physiologically corrected blood flow. CCTGA occurs due to L looping of the embryologic heart tube. As a result, the morphologic right ventricle outflows into the systemic circulation, and the morphologic left ventricle outflows into the pulmonary circulation. CCTGA is frequently associated with ventricular septal defects, pulmonic stenosis, tricuspid valve abnormalities and dextrocardia. CCTGA is often asymptomatic in childhood and can present later in adulthood with symptoms of morphologic right ventricular failure, tricuspid regurgitation, or cardiac arrhythmias. Systemic atrioventricular valve (SAVV) intervention can be a valuable option for treating right ventricular failure and degeneration of the morphologic tricuspid valve. notes- A Case of Congenital Heart Disease Presenting in Adulthood Notes were drafted by Ayan Purkayastha. What is the pathogenesis of Congenitally Corrected Transposition of the Great Arteries? Occurs due to disorders in the development of the primary cardiac tube Bulboventricular part of the primary heart forms a left-sided loop instead of right-sided loop, leading to the normally located atria being connected to morphologically incompatible ventricles This is accompanied by abnormal torsion of the aortopulmonary septum (transposition of the great vessels) As a result, there is ‘physiologic correction’ of blood flow. Non-oxygenated blood flows into the right atrium and through the mitral valve into the morphologic left ventricle, which pumps blood into the pulmonary artery. Oxygenated blood from the pulmonary veins flows into the left atrium and through the tricuspid valve to the morphologic right ventricle, which pumps blood to the aorta. Compared with standard anatomy, the flow of blood is appropriate, but it is going through the incorrect ventricle on both sides. Frequent conditions associated with CCTGA include VSD, pulmonic stenosis and dextrocardia
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    29 m
  • 420. Cardio-Rheumatology: Cardiovascular Multimodality Imaging & Systemic Inflammation with Dr. Monica Mukherjee
    Jun 20 2025
    In this episode, CardioNerds Dr. Gurleen Kaur, Dr. Richard Ferraro, and Dr. Jake Roberts are joined by Cardio-Rheumatology expert, Dr. Monica Mukherjee, to discuss the role of utilizing multimodal imaging for cardiovascular disease risk stratification, monitoring, and management in patients with chronic systemic inflammation. The team delves into the contexts for utilizing advanced imaging to assess systemic inflammation with cardiac involvement, as well as the role of imaging in monitoring various specific cardiovascular complications that may develop due to inflammatory diseases. Audio editing by CardioNerds academy intern, Christiana Dangas. CardioNerds Prevention PageCardioNerds Episode PageCardioNerds AcademyCardionerds Healy Honor Roll CardioNerds Journal ClubSubscribe to The Heartbeat Newsletter!Check out CardioNerds SWAG!Become a CardioNerds Patron! Pearls - Cardiovascular Multimodality Imaging & Systemic Inflammation Systemic inflammatory diseases are associated with an elevated CVD risk that has significant implications for early detection, risk stratification, and implementation of therapeutic strategies to address these risks and disease-specific complications. As an example, patients with SLE have a 48-fold increased risk for developing ASCVD compared to the general population. They may also develop disease-specific complications, such as pericarditis, that require focused imaging approaches to detect. In addition to increasing the risk for CAD, systemic inflammatory diseases can also result in cardiac complications, including myocardial, pericardial, and valvular involvement. Assessment of these complications requires the use of different imaging techniques, with the modality and serial studies selected based on the suspected disease process involved. In most contexts, echocardiography remains the starting point for evaluating cardiac involvement in systemic inflammatory diseases and can inform the next steps in terms of diagnostic study selection for the assessment of specific cardiac processes. For example, if echocardiography is completed in an SLE patient and demonstrates potential myocardial or pericardial inflammation, the next steps in evaluation may include completing a cardiac MRI for better characterization. While no current guidelines or standards of care directly guide our selection of advanced imaging studies for screening and management of CVD in patients with systemic inflammatory diseases, our understanding of cardiac involvement in these patients continues to improve and will likely lead to future guideline development. Due to the vast heterogeneity of cardiac involvement both across and within different systemic inflammatory diseases, a personalized approach to caring for each individual patient remains central to CVD evaluation and management in these patients. For example, patients with systemic sclerosis and symptoms of shortness of breath may experience these symptoms due to a range of causes. Echocardiography can be a central guiding tool in assessing these patients for potential concerns related to pulmonary hypertension or diastolic dysfunction. Based on the initial echocardiogram, the next steps in evaluation may involve further ischemic evaluation or right heart catheterization, depending on the pathology of concern. Show notes - Cardiovascular Multimodality Imaging & Systemic Inflammation Episode notes drafted by Dr. Jake Roberts. What are the contexts in which we should consider pursuing multimodal cardiac imaging, and are there certain inflammatory disorders associated with systemic inflammation and higher associated CVD risk for which advanced imaging can help guide early intervention? Systemic inflammatory diseases are associated with elevated CVD risk, which has significant implications for early detection, risk stratification, prognostication, and implementation of therapeutic strategies to address CVD risk and complicat...
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    18 m
  • 419. HFpEF in Women with Dr. Anu Lala and Dr. Martha Gulati
    Jun 4 2025
    In this episode, CardioNerds Dr. Anna Radakrishnan and Dr. Apoorva Gangavelli are joined by prevention expert Dr. Martha Gulati and heart failure expert Dr. Anu Lala to discuss heart failure with preserved ejection fraction (HFpEF), a multifactorial, evolving challenge, particularly in women. In this episode, we delve into the distinctive clinical presentation and pathophysiology of HFpEF among women, exploring both traditional and gender-specific risk factors, from metabolic and inflammatory processes to the impact of obesity, sleep apnea, and gender-specific conditions. We also discussed the latest evidence on prevention strategies and emerging therapies that not only target HFpEF symptoms but also address underlying risk factors. This conversation highlights the importance of multidisciplinary, holistic care to advance diagnosis, management, and ultimately, patient outcomes for women with HFpEF. Audio editing by CardioNerds academy intern, Christiana Dangas. Enjoy this Circulation 2022 Paths to Discovery article to learn about the CardioNerds story, mission, and values. CardioNerds Heart Success Series PageCardioNerds Episode PageCardioNerds AcademyCardionerds Healy Honor Roll CardioNerds Journal ClubSubscribe to The Heartbeat Newsletter!Check out CardioNerds SWAG!Become a CardioNerds Patron! Pearls - HFpEF in Women HFpEF Is a Multisystem Syndrome:HFpEF in women involves more than just diastolic dysfunction—it represents a convergence of metabolic, inflammatory, and hormonal factors that make its diagnosis and management uniquely challenging. Visceral Adiposity Drives Risk:Obesity isn’t just excess weight; central or visceral adiposity actively promotes inflammation, insulin resistance, and microvascular dysfunction, which are crucial in triggering HFpEF in women. Early Identification Is Key:Recognizing—and treating—subtle risk factors such as sleep-disordered breathing, hypertension, and subtle metabolic dysfunction early, especially in women who may underreport symptoms, can prevent progression to HFpEF. Holistic, Lifespan Approach Matters:Effective HFpEF care involves managing the whole cardiometabolic profile with tailored lifestyle interventions, advanced medications (e.g., SGLT2 inhibitors, GLP-1 agonists), and even cardiac rehabilitation, which remain critical at every stage, even after diagnosis. Tailoring Prevention to Unique Risks in Women:Gender-specific factors such as postmenopausal hormonal changes, pregnancy-related complications, and autoimmune conditions demand a customized prevention strategy, reminding us that prevention isn’t one-size-fits-all. Show notes - HFpEF in Women Notes drafted by Dr. Apoorva Gangavelli 1. What are the gender-based differences in HFpEF presentation? HFpEF in women often presents with more subtle symptoms such as exertional dyspnea and fatigue, which may be mistakenly attributed to aging or obesity. Women tend to have a higher prevalence of preserved ejection fraction despite a similar heart failure symptom burden to men. The diagnostic challenge is compounded by lower natriuretic peptide levels influenced by hormonal factors, particularly postmenopausal estrogen deficiency, leading to false negatives and underdiagnosis. 2. How do traditional and gender-specific risk factors contribute to the development of HFpEF in women? Traditional risk factors include obesity, hypertension, diabetes, and metabolic syndrome. Gender-specific risk factors encompass pregnancy-related complications, menopause, and autoimmune diseases, which may uniquely affect cardiovascular structure and function in women. The interaction between visceral adiposity and systemic inflammation is central in predisposing women to HFpEF. 3. What underlying pathophysiological mechanisms make women more susceptible to HFpEF? Chronic inflammation and endothelial dysfunction contribute to myocardial stiffness and diastolic dysfunction. ...
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    25 m
  • 418. CardioNerds x CSWG – LV Unloading in AMI-Shock with Dr. Navin Kapur, Dr. Shashank Sinha & Dr. Rachna Kataria
    May 14 2025
    In this webinar, the CardioNerds collaborated with the Cardiogenic Shock Working Group (CSWG) to discuss LV unloading and the updated AMI guidelines, which upgraded transvalvular flow pumps to a Class 2A recommendation in AMI shock. Dr. Rachel Goodman and Dr. Gurleen Kaur from CardioNerds were joined by Dr. Navin Kapur (Tufts Medical Center), Dr. Shashank Sinha (INOVA Fairfax Hospital), and Dr. Rachna Kataria (Brown University) from the CSWG. Together, they explore a case of an older woman who presented with inferior STEMI and was found to have complete occlusion of an anomalous single coronary artery originating from the right coronary cusp and supplying the entire left ventricle. She was treated with DES to the anomalous RCA. Her course was complicated by AMI shock with re-occlusion of the DES, which was treated with thrombectomy and balloon angioplasty. An IABP was placed. After transfer to a tertiary care center, a pulmonary artery catheter revealed a CI of 0.96. With worsening shock, rising lactate, and end organ dysfunction, the team proceeded with VA-ECMO and Impella CP for LV unloading. Her lactate subsequently normalized. Produced by CardioNerds in collaboration with the Cardiogenic Shock Working Group. CardioNerds Cardiac Critical Care PageCardioNerds Episode PageCardioNerds AcademyCardionerds Healy Honor Roll CardioNerds Journal ClubSubscribe to The Heartbeat Newsletter!Check out CardioNerds SWAG!Become a CardioNerds Patron!
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    23 m
  • 417. Case Report: Clear Vision, Clouded Heart: Ocular Venous Air Embolism with Pulmonary Air Embolism, RV Failure, and Cardiac Arrest – Trinity Health Ann Arbor
    May 9 2025
    CardioNerds Critical Care Cardiology Council members Dr. Gurleen Kaur and Dr. Katie Vanchiere meet with Dr. Yash Patel, Dr. Akanksha, and Dr. Mohammed El Nayir from Trinity Health Ann Arbor. They discuss a case of pulmonary air embolism, RV failure, and cardiac arrest secondary to an ocular venous air embolism. Expert insights provided by Dr. Tanmay Swadia. Audio editing by CardioNerds Academy intern, Grace Qiu. A 36-year-old man with a history of multiple ocular surgeries, including a complex retinal detachment repair, suffered a post-vitrectomy collapse at home. He was found hypoxic, tachycardic, and hypotensive, later diagnosed with a pulmonary embolism from ocular venous air embolism leading to severe right heart failure. Despite a mild embolic burden, the cardiovascular response was profound, requiring advanced hemodynamic support, including an Impella RP device (Abiomed, Inc.). Multidisciplinary management, including fluid optimization, vasopressors and mechanical support to facilitate recovery. This case underscores the need for early recognition and individualized intervention in cases of ocular venous air embolism. 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- Clear Vision, Clouded Heart: Ocular Venous Air Embolism with Pulmonary Air Embolism, RV Failure, and Cardiac Arrest Hypoxia, hypotension and tachycardia in a patient following ocular instrumentation are classic findings suggestive of pulmonary embolism from possible air embolism. The diagnosis of RV failure is based on clinical presentation, echocardiographic findings (such as McConnell’s sign), and invasive hemodynamic assessment via right heart catheterization. Mechanical circulatory support can be considered as a temporary measure for patients with refractory RV failure. Central Figure: Approach to Pulmonary Embolism with Acute RV Failure Notes - Clear Vision, Clouded Heart: Ocular Venous Air Embolism with Pulmonary Air Embolism, RV Failure, and Cardiac Arrest 1. What is an Ocular Venous Air Embolism (VAE), and how can it be managed in critically ill patients? An Ocular Venous Air Embolism is defined as the entry of air into the systemic venous circulation through the ocular venous circulation, often during vitrectomy procedures. Early diagnosis is key to preventing cardiovascular collapse in cases of Ocular Venous Air Embolism (VAE). The goal is to stop further air entry. This can be done by covering the surgical site with saline-soaked dressings and checking for air entry points. Adjusting the operating table can help, especially with a reverse Trendelenburg position for lower-body procedures. The moment VAE is suspected, discontinue nitrous oxide and switch to 100% oxygen. This helps with oxygenation, speeds up nitrogen elimination, and shrinks air bubbles. Hyperbaric Oxygen Therapy can reduce bubble size and improve oxygenation, especially in cases of cerebral air embolism, when administered within 6 hours of the incident. Though delayed hyperbaric oxygen therapy can still offer benefits, the evidence is mixed. VAE increases right heart strain, so inotropic agents like dobutamine can help boost cardiac output, while norepinephrine supports ventricular function and systemic vascular resistance, but this may also worsen pulmonary resistance. Aspiration of air via multi-orifice or Swan-Ganz catheters has limited success, with success rates ranging from 6% to 16%. In contrast, the Bunegin-Albin catheter has shown more promise, with a 30-60% success rate. Catheterization for acute VAE-induced hemodynamic compromise is controversial, and there's insufficient evidence to support its ...
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    20 m