Bidirectional tachycardia is an uncommon and unique arrhythmia. It typically occurs in patients with digitalis toxicity, but it can also be associated with other causes. There has been controversy regarding the origin and the mechanism of bidirectional tachycardia. Treatment of bidirectional tachycardia involves the correction of reversible factors and the use of some antiarrhythmic medication.
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http://dx.doi.org/10.1097/00000539-200208000-00011 | DOI Listing |
Ann Noninvasive Electrocardiol
March 2025
Xiamen Cardiovascular Hospital, Division of Cardiology, Xiamen University, Xiamen, Fujian, China.
Pheochromocytoma, a type of neuroendocrine tumor, can cause numerous symptoms and signs similar to those of other clinical conditions, with the classic triad being palpitations, headache, and diaphoresis. Patients with pheochromocytoma can present with various cardiac complications, including myocarditis, acute coronary syndromes, cardiomyopathy, heart failure, and arrhythmias. Here we report a case of pheochromocytoma that first presented with bidirectional ventricular tachycardia.
View Article and Find Full Text PDFAnn Noninvasive Electrocardiol
September 2024
Division of Life Sciences and Medicine, Department of Electrocardiogram, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, Anhui, China.
This article describes the case of a 40-year-old individual who presented with fulminant myocarditis. Initial ECG displayed sinus tachycardia with a heart rate of 117 bpm, QS complexes in leads V1-V3, ST-segment depression in leads II, III, aVF, V5-V6, and ST-segment elevation >0.2 mV in leads V1 through V3.
View Article and Find Full Text PDFJ Pediatr Pharmacol Ther
November 2023
Mediterranean Pediatric Cardiology Center (LO, VGR, AD), Bambino Gesù Children's Hospital, Taormina, Italy.
We present a case of bidirectional ventricular tachycardia in a 15-year-old boy asymptomatic for arrhythmias, whose major complaint was muscle weakness. At our first evaluation he was receiving sotalol for his ventricular arrhythmias. In addition to bidirectional tachycardia, electrocardiogram during sinus rhythm showed prominent U waves and prolonged QT-U interval.
View Article and Find Full Text PDFCardiol Young
October 2023
Department of Pediatric Cardiology, University of Health Sciences, Istanbul Mehmet Akif Ersoy Thoracic and Cardiovascular Training and Research Hospital, Istanbul, Turkey.
We present two exceptional cases of 14-year-old girls diagnosed with rare cardiomyopathies (left ventricular non-compaction, and arrhythmogenic right ventricular cardiomyopathy), both presenting with the unusual finding of bidirectional ventricular tachycardia.
View Article and Find Full Text PDFIntensive Care Med
November 2023
Department of Cardiology, Aerospace Center Hospital, 15 Yuquan Road, Beijing, 100049, People's Republic of China.
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