An Unusual Case of Takotsubo Cardiomyopathy with Cardiac Arrest: The Importance of Clinical Context in Implanted Cardioverter Defibrillator Candidacy.

Takotsubo syndrome (TTS), also known as stress-induced cardiomyopathy, is characterized by acute heart failure, reversible left ventricular dysfunction, and other complications such as life-threatening arrhythmias. The management of TTS is challenging due to its unpredictable clinical course and the lack of evidence-based treatment recommendations. In this case report, we present a 71-year-old female who developed TTS with ventricular tachycardia (VT) cardiac arrest following septic shock and an exploratory laparotomy for appendicitis. Despite the presence of VT cardiac arrest and a left ventricular ejection fraction of 30-35%, an implanted cardioverter-defibrillator (ICD) was not indicated due to the rapid and satisfactory recovery of the patient's ventricular function. This case highlights the importance of considering the clinical context and the transient nature of TTS in the decision-making process for ICD candidacy.

Relapse of colchicine-intolerant, corticosteroid-dependent recurrent idiopathic pericarditis after perigestational discontinuation of anakinra: uncertain safety of anakinra in pregnancy and the need for shared decision-making.

A nulligravid woman in her mid-20s with colchicine-intolerant, steroid-dependent recurrent idiopathic pericarditis was in remission for 2 years on anakinra monotherapy when she had an unplanned pregnancy. Due to very limited and conflicting data, European Alliance of Associations for Rheumatology and American College of Rheumatology guidelines are equivocal on the use of anakinra in pregnancy, emphasising an individualised approach. Anakinra was discontinued but a month later, in the second month of gestation, the patient had an acute pericarditis flare. A multidisciplinary, patient-centred discussion about the competing risks of infection, obstetric complications and fetal malformations with anakinra versus suboptimally managed recurrent acute pericarditis guided the patient to choosing improved symptom control. Chest pain resolved and CRP normalised after daily anakinra injections were resumed. In the second trimester, the patient had mild COVID-19 infection and streptococcal pharyngitis on anakinra. At 34 weeks gestation, the patient went into preterm labour and had a spontaneous vaginal delivery of a healthy neonate.

Right Atrial and Endocardial Lead Mass Secondary to Anterior Mediastinal Mass Encasing Left Subclavian Vein.

INTRODUCTION: Multimodality cardiac imaging is a valuable tool for the noninvasive evaluation of right atrial masses (tumor, vegetation, or thrombus). CASE PRESENTATION: We report a case of right atrial mass that was discovered on a transthoracic echocardiogram ordered for pacemaker-pocket erythema in a 101-year-old man with heart failure/reduced left-ventricular ejection fraction and a dual-chamber pacemaker. Transthoracic and transesophageal echocardiogram showed a large hypoechoic mobile RA mass extending from the superior vena cava, with pacemaker device lead attachment. Infective endocarditis was excluded (no symptoms of systemic infection; negative blood cultures). CT angiography of the chest revealed an anterior mediastinal mass, highly suspicious for malignancy, encasing the left subclavian vein. The patient chose not to pursue invasive assessment of the mediastinal mass. Role of anticoagulation is unclear. CONCLUSION: Computed tomography complemented echocardiographic assessment and management of a right atrial mobile echo density due to a large anterior mediastinal mass.

Transient Complete Atrioventricular Block Associated With Herbal Supplement Use.

INTRODUCTION: Increasing and easy availability of so-called natural/herbal supplements pose the unique challenge of identifying associated side effects, including arrhythmias in otherwise-healthy individuals. CASE PRESENTATION: A 25-year-old female patient presented to the emergency department with fatigue and lightheadedness. The electrocardiogram showed complete AV block with a junctional escape rhythm at 55 beats per minute with QT prolongation (542ms). One week ago, she started to use a herbal medication (Muscle Eze Advanced) for muscle cramps after workouts. Extensive cardiac testing, including complete blood count, complete metabolic panel, TSH, transthoracic echocardiography, urine drug analysis, Lyme antibody were negative. Normal sinus rhythm was restored spontaneously within 1 day of discontinuing the herbal medication. PR and corrected QT intervals returned to baseline over the next two weeks. CONCLUSION: Muscle Eze Advanced consists of seven ingredients, including Melissa officinalis and Valeriana officinalis that have negative chronotropic, negative dromotrophic and QT prolonging effects. Recognizing the association between certain over-the-counter supplements and brady-arrhythmias may circumvent need for permanent pacemakers - an important consideration especially in the young.

Bedside Carotid Sinus Massage for Syncope Evaluation With Bifascicular Block and First-Degree Atrioventricular Block.

Symptomatic bifascicular block (BFB) with a reversible high-grade atrioventricular block (AVB) is an overlooked cause of syncope with differing diagnostic and therapeutic approaches. We present a case of a 79-year-old gentleman with multiple episodes of cardiac syncope. Initial electrocardiogram revealed a left bundle branch block and first-degree AVB worsened by bedside carotid sinus massage (CSM) obviating the need for electrophysiologic (EP) studies or continuous electrocardiographic monitoring for further evaluation. This case highlights the importance of CSM as a useful clinical tool in addition to EP studies and internal loop recorder (ILR) placement for assessment and appropriateness of permanent pacemaker (PPM) implantation. It also sheds light on the differing management protocols between EP studies and ILR evaluation versus empiric PPM implantation for patients with cardiac syncope secondary to BFB and AVB.

Transcatheter tricuspid valve-in-valve implantation for very early bioprosthetic tricuspid stenosis secondary to pacemaker lead entrapment: a case report.

Background: Tricuspid stenosis (native and prosthetic) is rare. Redo-sternotomy for isolated tricuspid replacement is associated with a higher risk. The efficacy and durability of transcatheter valve implantation for severe tricuspid stenosis are unclear. Case summary: Successful tricuspid valve-in-valve implantation (Edwards 26 mm Ultra) was performed to exteriorize a retained, unextractable pacemaker lead causing very early surgical bioprosthetic valve dysfunction in a 66-year-old Caucasian woman. The original indication for surgical replacement was pacemaker lead-related severe tricuspid regurgitation. History of CABG and subsequent surgical replacement rendered the risk of a third sternotomy and open-heart surgery prohibitive. Conclusion: Successful reduction in the severity of bioprosthetic tricuspid stenosis and improvement of right heart failure with transcatheter valve-in-valve implantation was observed. Percutaneous tricuspid valve implantation could be considered an alternative to redo-sternotomy for severe bioprosthetic tricuspid stenosis.

Post COVID-19 Large Atrial Thrombus Found Incidentally.

BACKGROUND: Coronavirus disease 2019 (COVID-19) has become a leading cause of morbidity and mortality worldwide. One of the major complications of COVID-19 infection is the hypercoagulability state. Cardiac thrombi and venous thromboembolism (VTE) have been documented with severe COVID-19 infection. We present a case of large right atrial (RA) thrombus in transit incidentally diagnosed following a mild COVID-19 in a previously vaccinated patient. CASE SUMMARY: An 85-year-old male presented to the emergency department two weeks following resolution of a mild COVID-19 infection due to an incidentally discovered large RA thrombus. Computed tomography with angiography of the chest was positive for acute pulmonary thromboembolic disease with large clot burden and findings consistent with right heart strain. The patient remained hemodynamically stable and was successfully managed with anticoagulation. CONCLUSION: RA thrombi and VTE can occur in patients with mild COVID-19 infection and in the setting of full COVID-19 vaccination. Echocardiography is a useful imaging modality in this patient population.

Myocardial Infarction with Nonobstructive Coronary Arteries (MINOCA) in a Patient Taking Lisdexamfetamine.

Stimulant medications like amphetamines have been associated with various cardiovascular complications like coronary artery spasm, coronary dissections and thrombus formation, the pathophysiology of which is theorized to be the endothelial damage induced by the medication and the inflammatory cascade that follows. We report a case of 52-year-old male on lisdexamfetamine, a newer stimulant agent used for attention deficit hyperactivity disorder (ADHD) who presented with sudden chest pain and ECG changes concerning for myocardial infarction and mildly elevated troponins. However, coronary angiogram showed no obstructive coronary artery disease and there was spontaneous resolution of his symptoms and ECG changes.

Complete Heart Block Causing Takotsubo Syndrome: A Case Report.

The association of complete atrioventricular (AV) block with Takotsubo syndrome (TTS) is well known, but the cause-and-effect relationship has not been determined. We present the case of a 91-year-old female with complete AV block who went untreated for over a year and later developed Takotsubo syndrome. Reversal of wall movement defects was seen after a permanent pacemaker was implanted, and routine follow-up showed that the implanted pacemaker worked normally.

Bifascicular block in unexplained syncope is underrecognized and under-evaluated: A single-center audit of ESC guidelines adherence.

BACKGROUND: The presence of bifascicular block on electrocardiography suggests that otherwise-unexplained syncope may be due to complete heart block. European Society of Cardiology (ESC) recommends investigating it with electrophysiology study (EPS). PPM is indicated if high-degree atrioventricular block is inducible. Long term rhythm monitoring with implantable loop recorder (ILR) is recommended if EPS is negative. We evaluated adherence to these guidelines. METHODS: This is a single-center retrospective audit of adult patients with bifascicular block hospitalized for unexplained syncope between January 2018 and August 2019 under general medicine service. Patients with an alternative explanation for syncope were excluded. Guideline adherence was assessed by formal cardiology consult and whether EPS followed by ILR and/or PPM were offered. RESULTS: 65 out of 580 adult patients (11.2%) admitted to general medicine service for syncope had a bifascicular block; 29 (5%) were identified to have bifascicular block and unexplained syncope. Median age was 77 ±10 years; 9 (31%) were female, and 6 (20.7%) patients had at least one prior hospital visit for syncope at our academic medical center. Cardiology was consulted on 17 (58.6%) patients. Two patients were evaluated by EPS (1 refused) followed by ILR. Overall, 3 out of 29 patients (10.3%) received guideline-directed evaluation during the hospitalization based on ESC guidelines. None of the patients received empiric PPM during the index hospitalization. CONCLUSION: Among patients admitted to the general medicine service with unexplained syncope and bifascicular block, a minority (10.3%) underwent guideline-directed evaluation per ESC recommendations. Cardiology was consulted in 58.6% of cases.

Delayed Presentation of Inferior STEMI Complicated by Ventricular Septal Rupture: An Indirect Consequence of the COVID-19 Pandemic.

The COVID-19 pandemic has adversely impacted healthcare delivery. An indirect consequence of the rational fear of contracting the virus is delayed medical attention for life threatening conditions. We present the case of inferior ST elevation myocardial infarction leading to the rare complication of a ventricular septal rupture reflecting transmural infarction. COVID hesitancy caused a 48-hour delay in seeking medical attention after symptom onset. We also discuss the use of MRI to guide decision for timing of VSD repair in an otherwise asymptomatic patient post-revascularization.

Heart Failure with Preserved Ejection Fraction: Concise Review.

Heart failure with preserved ejection fraction (HFpEF) is a highly prevalent disease, causing a significant burden to the elderly population. Due to the inconsistencies in the standard definition and criteria for diagnosis, HFpEF is often underdiagnosed and left untreated. Although diastolic dysfunction is one of the key driving factors of the disease process, other factors like systolic limitations, endothelial dysfunction, arterial stiffness, and poor ventricular-arterial coupling are also contributing factors. While various treatment modalities have been investigated, the management continues to remain supportive. This review highlights the various American College of Cardiology/American Heart Association and European Society of Cardiology definitions, pathophysiology, and current treatment modalities available for HFpEF.

Index Case of COVID-19 Myocarditis Requiring BiV-ICD for Primary Prevention of Sudden Cardiac Death.

INTRODUCTION: The severity of clinical presentation of COVID-19 myocarditis ranges from incidental identification of depressed left ventricular ejection fraction, cardiogenic shock requiring percutaneous mechanical circulatory support, to fatal fulminant myocarditis. In previously reported cases, surviving patients experienced improvement in left ventricular ejection fraction with the use of glucocorticoids and antivirals (+/- intravenous immunoglobulin/ convalescent plasma). We report the first case of COVID-myocarditis in a surviving patient where a persistently depressed left ventricular ejection fraction (less than 35 percent) despite optimal therapy prompted implantable cardioverter-defibrillator (ICD) implantation for primary prevention of sudden cardiac death. CASE PRESENTATION: A previously healthy 67-year-old man, diagnosed with mild COVID-19 pneumonia five days prior, presented to the emergency department with suspected STEMI (hypoxia, substernal chest pain and known left bundle branch block). Left heart catheterization showed patent coronary arteries. Transthoracic echocardiogram showed severely depressed ejection fraction (15-20 percent). CT showed bilateral infiltrates: treatment was started with dexamethasone, remdesivir and convalescent plasma for acute hypoxic respiratory failure due to COVID-19 pneumonia. After a four-day hospitalization, guideline-directed medical therapy at maximum tolerated doses over three months did not improve left ventricular ejection fraction. CONCLUSION: This is the index case of COVID-19 myocarditis-mediated heart failure with reduced ejection fraction requiring ICD for primary prevention of sudden cardiac death.

Segmental Coronary Vasospasm Mimicking ST-Elevation Myocardial Infarction in an Incidentally COVID-Positive Patient.

Coronary vasospasm is an underdiagnosed cause of myocardial infarction in the absence of obstructive coronary artery disease. Systemic inflammation is one of several triggers associated with coronary vasospasm. We report the case of a 47-year woman incidentally found to be COVID-positive (RT-PCR) during evaluation of constitutional symptoms and breast cellulitis. Later in the hospitalization, she developed sudden-onset typical angina at rest; 12 lead EKG showed inferolateral ST-elevations. Urgent coronary angiogram showed nitrate-responsive subtotal focal occlusions in the right coronary and circumflex arteries. In the absence of sepsis, it is difficult to attribute coronary vasospasm solely to cellulitis. Focal coronary artery spasm mimicking ST-elevation myocardial infarction successfully managed solely with intracoronary nitroglycerine in an incidentally COVID-positive patient adds to the diverse manifestations of COVID infection. The exact mechanism of focal, as opposed to diffuse coronary vasospasm is unclear.

Transesophageal Echocardiography-Guided WATCHMAN Implantation Without Contrast Use: A Three-Year, Single-Center Experience.

Background It is unclear if the WATCHMAN device (Boston Scientific, St. Paul, Minnesota) can be implanted without contrast to prevent complications in patients with advanced chronic kidney disease (CKD) or contrast allergy. Objective The efficiency and safety of WATCHMAN implantation under transesophageal echocardiography (TEE)-guidance and fluoroscopy without contrast use. Methods This was a retrospective single-center study at Albany Medical Center between June 2016 and June 2019. Consecutive procedure notes for all WATCHMAN devices implanted between June 2016 and June 2019 were screened to identify patients who did not receive contrast. Patients with incomplete information on the calculation of the 'Congestive heart failure, Hypertension, Age [>75 years], Stroke, Diabetes mellitus, Vascular disease, Age [65 to 74 years], Sex category' (CHA2DS2VASc)/'Hypertension, Abnormal renal/liver function, Stroke, Bleeding history, Labile international normalized ratio, Elderly, Drugs/alcohol' (HAS-BLED) score and reason(s) precluding safe contrast use were excluded. Efficiency was measured as i) accuracy of device size estimation based on TEE-measured left atrial appendage (LAA) dimensions were determined by the need to change the size of the device initially selected, ii) number of implantation attempts, irrespective of change in device size, iii) whether more than one device was used secondary to inaccurate initial size estimation or other procedural complexities, and iv) successful LAA seal on TEE immediately and 45-days post-implantation (peri-device leak of < 5 mm by color Doppler). Procedure-related complications, immediate and delayed (0-45 days), were recorded. Results Twelve patients received WATCHMAN without contrast. The mean age was 79.2 years, with male predominance (n=8). The mean CHA2DS2VASc and HAS-BLED scores were 5.50 (+/-1.24) and 4.08 (+/-1.08), respectively. Contrast was avoided because of a history of CKD stage IV (n=5), rapidly progressive CKD stage III (n=1), and contrast allergy (n=6). In 11 out of 12 patients, initial TEE-based device size estimation was accurate with successful implantation at the first attempt. One patient required a change in initial device size and, therefore, required a second attempt for successful implantation. There was no peri-device leak immediately post-implantation in any patient; only one patient had a significant device leak on day 45 TEE requiring continuation of anticoagulation for four months until a successful device seal. There were no immediate or late complications up to 45-days post-implantation. Conclusion Our experience shows no significant compromise in the efficiency and safety of the WATCHMAN implantation without contrast in patients with advanced CKD or a contrast allergy.