In a 57-year-old woman with complex ventricular ectopy, a paroxysmal supraventricular tachycardia initiated by premature ventricular beats is presented. She underwent an electrophysiologic study. The tachycardia origin was localised to the left atrium. At the presence of retrograde dual atrioventricular nodal pathway, the atrial tachycardia was induced by programmed ventricular stimulation. Triggered activity was shown to be the likely mechanism of both atrial and ventricular arrhythmias.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/0167-5273(92)90034-z | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Precise photorelease in living cells by high-viscosity activatable coumarin-based photocages.
Chem Sci
January 2025
School of Biomedical Engineering, Shanghai Jiao Tong University Shanghai 200240 China
Intracellular viscosity is a critical microenvironmental factor in various biological systems, and its abnormal increase is closely linked to the progression of many diseases. Therefore, precisely controlling the release of bioactive molecules in high-viscosity regions is vital for understanding disease mechanisms and advancing their diagnosis and treatment. However, viscosity alone cannot directly trigger chemical reactions.
View Article and Find Full Text PDFSeasonal Variations in Testicular Torsion: A Retrospective Study.
Cureus
December 2024
Department of Emergency Medicine, Jordan University of Science and Technology, Irbid, JOR.
Background: Testicular torsion (TT) is a urological emergency requiring prompt intervention to prevent irreversible damage to the testicle.
Objective: This study aims to assess trends in men's TT referrals, diagnostic evaluation through Doppler sonography (DS) scan, symptoms before surgery, orchidectomy rates, and TT laterality in relation to age and seasons of the year.
Methods: This observational retrospective cohort study included all patients treated for TT at King Abdullah University Hospital between 2009 and 2021.
Immediate Postoperative Activation of Vagus Nerve Stimulation (VNS) for Super-refractory Status Epilepticus: A Case Report.
Cureus
December 2024
Clinical Research, National Institute of Neurology and Neurosurgery, Mexico City, MEX.
Anti-NMDA (N-methyl-D-aspartate) receptor encephalitis (ANRE) is a rare autoimmune condition targeting brain receptors, often linked to ovarian tumors in young women. In severe cases, it can lead to status epilepticus, but in sporadic cases, it may progress to super-refractory status epilepticus (SRSE), a dangerous state of continuous or repetitive seizures demanding urgent medical attention that continues or recurs more than 24 hours after the initiation of anesthetic therapy. We present a case report of anti-NMDA receptor limbic encephalitis-triggered SRSE terminated with vagus nerve stimulation (VNS) and titrated to high stimulation parameters in the immediate postoperative period.
View Article and Find Full Text PDFEffects of combo therapy with coenzyme Q10 and mitochondrial transplantation on myocardial ischemia/reperfusion-induced arrhythmias in aged rats.
Iran J Basic Med Sci
January 2025
Molecular Medicine Research Center, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran.
Objectives: Ischemia/reperfusion (IR)-induced ventricular arrhythmia, which mainly occurs after the opening of coronary artery occlusion, poses a clinical problem. This study aims to investigate the effectiveness of pretreatment with coenzyme Q (CoQ) in combination with mitochondrial transplantation on IR-induced ventricular arrhythmias in aged rats.
Materials And Methods: Myocardial IR induction was performed by left anterior descending coronary artery occlusion for 30 min, followed by re-opening for 24 hr.
Electroencephalogram biomarkers as predictors of mortality and functional recovery in patients with severe traumatic brain injury: Protocol study.
MethodsX
June 2025
Neurorehabilitation and Neuromodulation Laboratory, Department of Physiological Sciences, Federal University of Espírito Santo, City of Vitória, ES, Brazil.
Traumatic brain injury (TBI) is a global public health condition that causes cognitive and behavioral deficits. This protocol assesses the potential of quantitative electroencephalogram (EEG) biomarkers, associated with inflammatory indicators, to predict mortality and functional recovery in patients with severe TBI. Through continuous monitoring and analysis of abnormal brain activity patterns, the protocol aims to personalize therapeutic interventions and improve patient quality of life.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!