HRCR Rare Diseases Article Collection
An unexpected finding by epicardial mapping: Atrial fibrillation in a 14-month-old patient with short QT syndrome
Short QT syndrome (SQTS) is a very rare channelopathy accompanied by familial clustering and sudden cardiac death.1 It has an estimated prevalence ranging from 0.02% up to 2% in the adult population, but only 0.05% among pediatric patients.2–6 To date, 9 mutations in 6 different genes have been identified, including KCNH2, KCNQ1, KCNJ1, CACNA1C, CACNB2, and CACNA2D1. In pediatric patients, SQTS is characterized by shortening of the corrected QT interval (QTcB <316 ms, J-Tpeak cB <181 ms, and the presence of early repolarization) on the surface electrocardiogram (ECG).Groin lymphorrhea after catheter ablation of atrial fibrillation: A case report
Catheter ablation is a well-established therapeutic option for the treatment of atrial fibrillation (AF).1,2 Although nowadays performed on a routine basis, catheter ablation of atrial fibrillation (AFCA) is associated with a non-negligible complication rate of up to 16% with significant discrepancies in incidence and type, with vascular access site complications being the most common (groin hematoma, femoral arterial pseudoaneurysms, and femoral arteriovenous fistula).1–4 We report a case of a 75-year-old White male patient with right groin lymphorrhea as an access site–related complication after second catheter ablation of recurrent atrial fibrillation.Catheter ablation for persistent atrial fibrillation in an elderly patient with cor triatriatum sinister
Cor triatriatum sinister (CTS) accounts for <0.1% of all congenital heart diseases. It is a condition in which the fibromuscular membrane divides the left atrium (LA) into 2 chambers.1 The superior and posterior chambers receive the pulmonary veins, and the inferior and anterior chambers are connected to the left atrial appendage and mitral orifice.2 Pathophysiologically, CTS is similar to mitral stenosis,3 and the symptoms are correlated with pulmonary venous congestion and pressure loading at the right side of the heart.
