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Population Pharmacokinetics and Pharmacodynamics of Sotalol Following Expedited Intravenous Loading in Patients With Atrial Arrhythmias.
CPT Pharmacometrics Syst Pharmacol
January 2025
Division of Clinical Pharmacology, Department of Pediatrics, Spencer Fox Eccles School of Medicine, University of Utah, Salt Lake City, Utah, USA.
Sotalol, a class III antiarrhythmic agent, is used to maintain sinus rhythm in patients with atrial fibrillation or atrial flutter (AFIB/AFL). Despite its efficacy, sotalol's use is limited by its potential to cause life-threatening ventricular arrhythmias due to QT interval prolongation. Traditionally, sotalol administration required hospitalization to monitor these risks.
View Article and Find Full Text PDFObesity-induced activation of NADPH oxidase 2 prolongs cardiac repolarization via inhibiting K+ currents.
PLoS One
December 2024
Chinese PLA Medical School, Chinese PLA General Hospital, Beijing, China.
Obesity is associated with abnormal repolarization manifested by QT interval prolongation, and oxidative stress is an important link between obesity and arrhythmias. However, the underlying electrophysiological and molecular mechanisms remain unclear. The aim of this study is to evaluate the role of obesity in potassium current in ventricular myocytes and the potential mechanism of NADPH oxidase 2 (Nox2).
View Article and Find Full Text PDFSmoking-associated electrocardiographic abnormalities predict cardiovascular mortality.
Sci Rep
December 2024
Department of Physiology, School of Medicine, University of Louisville, Louisville, KY, USA.
Background -Smoking is associated with arrhythmia and sudden cardiac death, but the biological mechanisms remain unclear. In electrocardiogram (ECG) recordings abnormal durations of ventricular repolarization (QT interval), atrial depolarization (P wave), and atrioventricular depolarization (PR interval and segment), predict cardiac arrhythmia and mortality. Previous analyses of the National Health and Nutrition Examination Survey (NHANES) database for associations between smoking and ECG abnormalities were incomplete.
View Article and Find Full Text PDFAn Evaluation of Whether Routine QTc Interval Screening Is Necessary Prior to Starting ADHD Medications: Experience from a Large Retrospective Study.
Pediatr Rep
December 2024
Department of Pediatric Neurology, Queen Rania Children's Hospital, Royal Medical Services, Amman 11118, Jordan.
Background/objectives: Routine screening electrocardiograms (ECGs) prior to starting medications for attention-deficit/hyperactivity disorder (ADHD) remain controversial. This real-world study assessed corrected QT (QTc) interval data from pediatric patients who had a baseline ECG performed prior to initiating treatment with ADHD medications and ≥6 months of clinical follow-up.
Methods: A retrospective chart review of children aged 2-18 years diagnosed with ADHD with/without autism spectrum disorder (ASD) at child neurology clinics in Jordan (June 2019 and June 2021) was performed, and children were prescribed with ADHD medications to manage symptoms.
Exploring electrocardiographic alterations and the prolongation of QT interval in patients with diabetes mellitus.
J Family Med Prim Care
November 2024
Department of Community Medicine, Rajendra Institute of Medical Sciences, Ranchi, Jharkhand, India.
Background: Diabetes mellitus (DM) affects a substantial proportion of the world's population and is associated with an increased risk of sudden cardiac death (SCD) due to cardiac arrhythmias, specifically prolonged QT intervals. This study investigates the correlation between glycemic control and cardiac health in 77 diabetic patients.
Methods: Patients with both type 1 and type 2 DM aged 14 to 82 years were included.
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