title: [Excessive energy drink consumption caused marked QT prolongation. Case report].
abstract: The authors report a case of a 22-year-old man with atypical chest pain after consumption of six energy drinks (1.5 liter containing 470 mg coffein) with vodka. On admission ECG showed marked QT/QTc prolongation (QT/QTc, 520/580 msec). Next day the QT/QTc returned to fully normal (QT/QTc, 360/430 msec). It was assumed that the patient had a silent long QT syndrome and that high dose of highly caffeinated energy drink triggered the (paradoxical) prolonged QT/QTc. The authors conclude that excessive energy drink intake with alcohol or during physical exercise should be avoided.
authors.affiliation: Kardiológia, Budai Irgalmasrendi Kórház Budapest, Árpád fejedelem útja 7. II. em., 1023.
authors.forename: János
authors.initials: J
authors.lastname: Tomcsányi
authors.affiliation: Kardiológia, Budai Irgalmasrendi Kórház Budapest, Árpád fejedelem útja 7. II. em., 1023.
authors.forename: Kinga
authors.initials: K
authors.lastname: Jávor
mesh_terms: D004562:Electrocardiography; D061215:Energy Drinks / Q000009:adverse effects*; D006801:Humans; D008133:Long QT Syndrome / Q000209:etiology* / Q000503:physiopathology*; D008297:Male; D055815:Young Adult
keywords: caffeine; energiaital; energy drinks; hosszú-QT-szindróma; koffein; long QT syndrome