A 15-year-old male presented with vasovagal syncope and troponin leak 4 days after his second COVID-19 vaccine. Based on initial diagnostic work-up, he was thought to have COVID-19 vaccine-associated myocarditis. His cardiac dysfunction persisted and further work-up including genetic evaluation and serial MRI studies later confirmed a diagnosis of arrhythmogenic cardiomyopathy. This is a unique case of an incorrect diagnosis based on timing and context of vaccine-related myocarditis. Reports of mild and self-limited myocarditis post-COVID-19 vaccination may cause vaccine hesitancy among the public, and so case reports such as this one show the importance of discerning underlying conditions amongst rare COVID-19 vaccination complications.
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http://dx.doi.org/10.1017/S1047951125000046 | DOI Listing |
Diagnostics (Basel)
February 2025
Department of Advanced Biomedical Sciences, Federico II University of Naples, 80131 Naples, Italy.
Acute heart failure (AHF) is a complex clinical syndrome characterized by the rapid or gradual onset of symptoms and/or signs of heart failure (HF), leading to an unplanned hospital admission or an emergency department visit. AHF is the leading cause of hospitalization in patients over 65 years, thus significantly impacting public health care. However, its prognosis remains poor with high rates of mortality and rehospitalization.
View Article and Find Full Text PDFJ Zoo Wildl Med
March 2025
Wildlife Conservation Society, Bronx, NY 10460, USA,
Cardiac disease is a common cause of mortality in many primates housed in zoological settings. At the Bronx Zoo, between 2007 and 2018, there were ten incidences of sudden cardiac death in adult male geladas (), none of which showed premonitory signs. Due to concerns of occult cardiac disease and fatal arrhythmogenic events, complete cardiac examinations were performed in three clinically normal, adult male geladas.
View Article and Find Full Text PDFJTCVS Open
February 2025
Division of Thoracic Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Md.
Objective: Although cardiac sympathetic denervation (CSD) effectively manages refractory ventricular tachyarrhythmias (RVTs) in long-QT syndrome and catecholaminergic polymorphic ventricular tachycardia, the link between dysautonomia and RVT from broader etiologies is understudied. We hypothesized that dysautonomia is linked to RVT regardless of etiology in patients requiring CSD. We aimed to determine whether these patients have a high burden of dysautonomia symptoms using the Composite Autonomic Symptom Score-31 (COMPASS-31).
View Article and Find Full Text PDFJ Am Heart Assoc
March 2025
Department of Cardiology, Clinical Sciences Lund University Lund Sweden.
Background: The diagnostic role of signal-averaged ECG (SAECG) in arrhythmogenic right ventricular cardiomyopathy (ARVC) has lately been questioned. We assessed the value of SAECG-derived late ventricular potentials (LP) in ARVC diagnosis and its association with disease manifestations.
Methods And Results: Patients with definite ARVC diagnosis or genotype-positive family members who underwent SAECG were included in register-based observational study (n=357, mean age 41 years, 47% female, 43% probands).
Am J Physiol Cell Physiol
March 2025
Division of BioMedical Sciences, Faculty of Medicine. Memorial University of Newfoundland. St. John's, Canada A1B 3V6.
Arrhythmogenic Cardiomyopathy (ACM) is clinically characterized by ventricular arrhythmias causing sudden cardiac death and fibrofatty replacement of the myocardium leading to heart failure. One form of ACM is highly prevalent in the Canadian Province of Newfoundland and Labrador (NL) and has earned the moniker, The "Newfoundland Curse". This ACM in NL patients is often caused by a fully penetrant heterozygous missense pathogenic variant in the TMEM43 gene (TMEM43 c.
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