IJCS | Volume 32, Nº5, September/October 2019

549 Figure 2 - ECG-2: Electrocardiographic tracing after empirical treatment with BZ associated with conventional treatment for heart failure. Sinus rhythm, heart rate of 60 bpm, normal P-wave, normal PR interval, normal QRS axis (+60°), precordial transition area in lead V 2 (normal), visible U-wave from leads V 3 to V 5 . Conclusion: normal tracing. Valle et al. Drug efficacy in acute Chagas myocarditis Int J Cardiovasc Sci. 2019;32(5):546-550 Case Report