Junctional ectopic tachycardia (JET) is more common in its postoperative form. A thorough understanding of its etiology, pathophysiology, and management strategies is essential. Classically, postoperative JET is considered to arise from surgical trauma. Genetic susceptibility and an intrinsic morphologic/functional defect in the conduction system inherent in congenital heart diseases likely play a significant role. The devastating effects on postoperative hemodynamics warrant prompt attention. A multipronged management approach with general measures, pharmacotherapy, and pacing has decreased morbidity and mortality. Amiodarone and procainamide remain the preferred drugs, while ivabradine appears promising. Carefully planned randomized trials can go a long way in developing a systematic management protocol for postoperative JET.
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http://dx.doi.org/10.4103/apc.apc_35_21 | DOI Listing |
Prz Gastroenterol
August 2023
Department of Internal Medicine, Faculty of Medicine, Mansoura University, Mansoura, Egypt.
Introduction: Portal hypertension is a common complication of liver cirrhosis. Varices are dilated collaterals that develop as a result of portal hypertension at the level of the porto-systemic connections and can cause a shift in the blood flow from high to low pressure. Common locations for porto-systemic shunts are the lower oesophagus and the gastric fundus.
View Article and Find Full Text PDFJACC Case Rep
November 2024
Division of Cardiology, Tokyo Women's Medical University, Tokyo, Japan.
Marked first-degree atrioventricular block with a PR interval ≥500 ms is rare, leading to unusual P-wave placement. In this case, the P waves immediately after the QRS waves complicated rhythm interpretation. Close attention to P-wave morphology and fused premature ventricular complexes can be important for a proper diagnosis.
View Article and Find Full Text PDFDevelopment
January 2025
State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China.
Electrical coupling is vital to neural communication, facilitating synchronized activity among neurons. Despite its significance, the precise mechanisms governing the establishment of gap junction connections between specific neurons remain elusive. Here, we identified that the PVC interneuron in Caenorhabditis elegans forms gap junction connections with the PVR interneuron.
View Article and Find Full Text PDFJ Arrhythm
December 2024
Department of Pediatric Cardiology Istanbul Mehmet Akif Ersoy Thoracic and Cardiovascular Surgery Training and Research Hospital, University of Health Sciences Istanbul Turkey.
Introduction: Although amiodarone is traditionally used in the treatment of postoperative junctional ectopic tachycardia (JET), the search for new treatments is ongoing. We present our experience with ivabradine at two medical centers.
Materials And Methods: Between January 2022 and January 2023, patients who developed JET after pediatric cardiac surgery were prospectively followed up and documented.
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