Reveal Chagas: Clinical Evidence of the Implantable Cardiac Monitor in Patients With Chagas Disease

Inclusion Criteria: * Have Chagas disease, confirmed by two serological tests. * Provide evidence through any of the following diagnosis methods: Rest ECG, 24 hour Holter monitoring, electrophysiological study, stress test or loop monitoring, at least one electrical disorder consistent with sinus bradycardia greater than 45 and lower than 60 bpm, sinus arrest not greater than 2.0 seconds, second degree atrial sinus block, intraventricular conduction disorders such as right branch, left branch or a bifascicular blockage type, first degree A-V blockage, or of type I second degree AV Block without associated bradycardia, atrial and/or ventricular arrhythmias that do NOT constitute an indication for pacemaker implant, ICD or mapping and radio frequency ablation. * Be asymptomatic or having minimal isolated unspecific symptoms not consistent with cardiac arrest, aborted sudden death, syncope, frequent and recurrent palpitations, cardiac failure, and lower extremity edema. * Have ejection fraction of left ventricle \>35% * Be able to give his/her written informed consent. * Subject should be \> 21 years old. * Be able to return for follow-up visits as required. Exclusion Criteria: * Class I or II (according to AHA/HRS/ESC guidelines) indication for final implantation of pacemaker, ICD, or cardiac resynchronizer. * Exhibit extrinsic causes of sinus dysfunction or A-V blockage. * Exhibit infiltrative myocardial diseases such as tumors or associated valvular defects. * Suffer any c…