Fig. 1From: Learning from studying very rare cardiac conditions: the example of short QT syndromeExample SQTS ECG. ECG recording from young adult male who had experienced out-of-hospital arrest. Heart rate at time of ECG measurement 62 min− 1, with QT and QTc intervals respectively of 322 and 326 ms (below the cut-off level in ESC diagnostic criteria [24]). Note tall T waves in precordial leads. ST segment elevation probably reflects early repolarizationBack to article page