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Tag Archives: U-wave

May 2020 Br J Cardiol 2020;27(2) doi:10.5837/bjc.2020.014

Can a giant U-wave be innocent?

Sinead Curran, Waleed Arshad, Arvinder Kurbaan, Han B Xiao

Abstract

We recorded an ECG (figure 1) in a 50-year-old Caucasian woman when she attended our clinic for atypical chest pain and a history of familial hypercholesterolaemia. Her medication included atorvastatin and ferrous sulphate only. Cardiovascular examination was unremarkable. The ECG shows a very large U-wave, but was otherwise normal. Because of the disproportionally large U-wave, she underwent extensive investigations. Her echocardiogram, exercise stress echocardiogram and 24-hour Holter monitor were all normal. Her blood tests showed normal thyroid function, normal serum potassium (4.4 mmol/L) and calcium (2.4 mmol/L). Figure 1. A 12-lead ele

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