Chagas cardiomyopathy patients with preseverd ventricular function and sustained ventricular tachycardia present regional myocardial sympathetic denervation and increased sympathetic activity - Miranda, Carlos H.; Arfelli, Elerson; Figueiredo, Alexandre Baldini de; Pintya, Antonio Osvaldo; Maciel, Benedito Carlos; Marin Neto, Jose Antonio; Simoes, Marcus Vinicius (European Society of Cardiology Congress, 2009)