Myocarditis is associated with a wide range of infections, most commonly viral (cytomegalovirus), bacterial, and parasitic (Trypanosoma cruzi). Epstein-Barr virus (EBV) rarely causes myocarditis, which is a lifethreatening complication. Autoantibodies against cardiac myocytes activate the complement system and cause diffuse myocyte necrosis. Myocarditis has a variable presentation from asymptomatic to cardiogenic shock. Over time, untreated myocarditis can progress and result in dilated ventricles. Continued dilation of ventricles leads to systolic dysfunction, conduction abnormalities, ventricular arrhythmia, heart failure, valvular abnormalities, and thromboembolism. So, we are emphasizing the importance of early diagnosis and treatment of EBV to prevent mortality. This case study represents a rare case of mortality secondary to EBV infection with resultant DCM and congestive heart failure (CHF).
Takayasu's arteritis is a rare form of chronic inflammatory disorder involving large vessels, with an unclear etiology. Common early signs and symptoms are weakness, malaise, and fever. Takayasu's arteritis mainly involves the aorta and its branches as well as the subclavian and carotid arteries. While radiologic methods can identify diseased vessels, they can't tell the difference between active and chronic lesions. This study reviews the characteristics of Takayasu's arteritis to identify any possible changes in the prevalence of symptoms of the disease.We conducted a literature review of case reports on Takayasu arteritis from PubMed and Google Scholar. Variables of interest were age, gender, symptoms, blood pressure (BP) measurement, diminished pulses, and radiological findings. Data were transferred to an Excel spreadsheet (Microsoft Corporation, Redmond, WA), and mean, median, and standard deviation, frequencies, and proportions were calculated using R version 1.1.456 (RStudio: Integrated Development for R. RStudio, PBC, Boston, MA).There were 43 cases, and females accounted for 88.3% of the presentations. The average age was 25 years, SD 12.5 years. Fever was the most frequent symptom (20.93%), followed by chest pain (13.95%), claudication (13.95%), and headache (13.95%). Less frequent complaints included shortness of breath (11.62%), weight loss (9.30%), syncope (6.98%), and night sweats (4.65%). On the right side, the average BP was 142/87 mmHg, and the left-sided finding averaged 115/72 mmHg. Decreased pulses were primarily seen in the radial artery with 15 cases. Radiological findings showed narrowing of the vessels in the following order: aorta (22), carotid (11), renal (10), subclavian (9), celiac (2), mesenteric (2), axillary (2), and tibial (1).The characteristics of Takayasu's arteritis were analyzed in this study. It identified several findings, ranging from fever symptoms to the signs of claudication, as well as the involvement of major vessels, such as the aorta and its branches, and a summary of radiological findings. This depicts the picture of Takayasu's arteritis and what physicians should expect when dealing with the disease.
L imb girdle muscular dystrophy (LGMD) is a muscular dystrophy with predominantly proximal distribution of weakness that spares the distal, facial, and extraocular muscles early in the course of the disease. Cardiac muscle may be affected, which may manifest as hypertrophic/dilated cardiomyopathy and cardiac dysrhythmias. Significant cardiac involvement has been documented frequently in LGMD2C-F, 2I, and LGMD1B forms of the disease, rarely in the LGMD1C and 2B subtypes, and thus far have not been reported in type 2A. We report a presentation of severe cardiomyopathy in an adult with muscular dystrophy type 2A.A 23-year-old black man was seen in hospital with complaints of decreased exercise tolerance, dyspnea on exertion, orthopnea, and some presycopal episodes for several weeks.The patient's LGMD was diagnosed at the age of 21 years. No family history of similar problems was noted. Physical examination at the time revealed decreased strength in the shoulder girdle area, with inability to raise the arm over the head. Laboratory data at the time showed a creatinine kinase of 4263 U/L and serum troponin of 0.77 ng/mL. ECG revealed sinus rhythm with bifascicular block. The patient's blood was then sent for genetic testing, which demonstrated CAPN3 sequencing alteration (Athena Diagnostics, Inc).When seen by cardiology, he was noted to be alert and oriented, afebrile, and normotensive. On physical examination he was noted to have jugular venous distension, with cardiac examination significant for a grade III/VI holosystolic murmur at the left lower sternal border, with a displaced point of maximal impulse. ECG revealed normal sinus rhythm, right bundle-branch block, and left anterior fascicular block. Laboratory tests revealed a BNP of 541 pg/mL, with negative cardiac enzymes. His other laboratory tests were found to be within normal limits. An echocardiogram was notable for severely reduced right and left ventricular systolic function, left ventricular ejection fraction of 15%, severe tricuspid regurgitation, and findings suggestive of left ventricular noncompaction (Figure). The patient was treated with ACE inhibitors, β blockers, and diuretics, with no improvement in his cardiac function on subsequent echocardiography. He had few evidence to suggest possible secondary causes of his cardiomyopathy, including myocarditis and ischemic disease, although he refused more extensive testing. DiscussionSignificant cardiac involvement has been rarely documented in LGMD1C, 2A, and 2B, whereas it is relatively common in LGMD2C, 2D, 2E, 2F, 2I, and LGMD1B. This may manifest as hypertrophic/dilated cardiomyopathy and cardiac dysrhythmias.LGMD1B patients often exhibit findings of both cardiomyopathy and dysrhythmia. 1LGMD2A (calpainopathy) is found as a result of a mutation of chromosome 15 in the CAPN3 gene encoding the proteolytic enzyme calpain-3.2 Calpain-3 (p94) belongs to the calpain family of soluble intracellular cysteine proteases, the majority of which are activated by a calcium-dependent mechanism. Calpain-3 is not, ...
There are few major adverse events after the coronavirus disease 2019 (COVID-19) vaccination. However, increasing cases of myocarditis and pericarditis are being reported to the Vaccine Adverse Event Reporting System (VAERS) in young people, primarily after the second dose of messenger RNA (mRNA) COVID-19 vaccines. We present a case series of myopericarditis post mRNA (Moderna) and myocarditis post vectorbased (Johnson & Johnson) COVID-19 vaccines. We intend to highlight the importance of early diagnosis and treatment of vaccine-related myocarditis to reduce mortality and morbidity.
SARS-CoV-2, also known as COVID-19, was first identified in Wuhan, China. Symptoms of COVID-19 are fevers, dry cough and less commonly gastrointestinal (GI) symptoms such as diarrhea that occur in 2 to 14 days of exposure. Infection with COVID-19 leads to hospitalizations due to respiratory compromise. Secondary manifestations of this virus should warrant further investigation since little is known about COVID-19 and its role in the cardiac circuit. We present a patient with COVID-19 who developed transient third-degree AV block initially hospitalized for septic shock. The patient presented with mild symptoms and the transient nature of the complete heart block could be a matter of low viral load in his circulation. He recovered from COVID-19 with no long-term cardiac sequelae. The long-term effects of COVID-19 are still unknown; this case presents the cardiac manifestations of the virus.
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