PMC2872901_01
Eletrocardiographic recordings before ventricular fibrillation in this case. The ECG shows ST segment elevation in lead V3-V5.
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F1
The vital signs at the subsequent measurements revealed a sheer decrease in BP and heart rate to 88/50 mmHg and 40 beats/min, respectively (Fig. 1).
Coronary angiogram showing marked systolic narrowing of the left anterior descending artery (A: Diastole, B: Systole).
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F2
The coronary angiography performed on the next day revealed no abnormal findings, such as an arteriosclerotic legion or thrombus (Fig. 2A), except for a myocardial bridge, approximately 2-2.5 cm in size, displaying 60-65% vascular stenosis during systolic period at themiddle part of the left anterior descending artery, which corresponded to the ST segment elevation of V3-V5 (Fig. 2B).