Review Article

Treatment of Chagas Cardiomyopathy

Table 2

Recommendation to treatment of CCC [6, 10, 11].

Drug groups and interventions IndicationRecommendationEvidence

Renin-angiotensin-aldosterone blockers ACEi or ARB (for those intolerant to the former) in patients with LV systolic dysfunction, LVEF < 45%, and NYHA I/II/III/IV stages B1 to DIC
Spironolactone or eplerenone in patients with LV systolic dysfunction, LVEF < 35% and NYHA III/IV stages B2 to DIB
Beta blockers Carvedilol, bisoprolol, and metoprolol succinate in patients with LV systolic dysfunction, LVEF < 45%, and NYHA I/II/III/IV stages B2 to DIIaB
DiureticsPatients with signs and symptoms of congestion (NYHA II to IV) IC
Hydralazine and nitrate Patients of any ethnicity, with LV systolic dysfunction, LVEF < 45%, and NYHA II–IV stages B2 to D with contraindications or intolerance to ACEI and ARB (e.g., progressive renal failure or hyperkalemia) IC
Patients with LV systolic dysfunction, LVEF < 45%, and NYHA III-IV as an addition to the use of optimized therapy stages B2 to DIIaC
Digitalis Patients with LV systolic dysfunction, LVEF < 45%, and sinus rhythm or atrial fibrillation, symptomatic despite optimized therapy stages B2 to DIIaC
Patients with LV systolic dysfunction, LVEF < 45%, and AF, asymptomatic, to control high heart rate IIIC
Oral anticoagulation Atrial fibrillation, previous embolic events, mural thrombus, IPEC/FIOCRUZ score ≥ 4IC
AmiodaronePatients with ventricular ectopy, asymptomatic NSVT, and left ventricular dysfunction stages B2 to DIB
Patients with symptomatic SVT or not, with or without left ventricular dysfunction not treated with ICD stages B1 to DIC
To reduce shocks in patients with ICD stages B1 to DIC
Patients with symptomatic SVT treated with CDI stages B2 to DIIaC
ICDMalignant arrhythmia, or sustained ventricular tachycardia, or those resuscitated from sudden cardiac arrest, especially with a reduced LVEF. Stages B2 to DIC
ResynchronizationRefractory HF, or functional class III/IV with persistent therapeutic optimization and any evidence of dyssynchrony. Sinus rhythm, QRS duration >120 milliseconds, and LVEF <35%. Stages B2 to DIIbC
Heart transplantationRefractory HF, dependent on inotropic drugs and/or circulatory support and/or mechanical ventilation stages C to DIC
VO2 peak ≤ 10 mL/kg/min, or if in use of beta blockers with VO2 peak = 12 mL/kg/min stages C to DIC
Fibrillation or sustained refractory ventricular tachycardia stages C to DIC
Functional class III/IV with persistent therapeutic optimization stages C to DIC
Ventricular circulatory supportBridge to heart transplantation, destination therapy, or bridging to recovery. Stages C to DFew evidenceFew evidence
Immunoadsorption (IA)Based on other cardiomyopathies, without evidence of CCC yetNo evidenceNo evidence
Aptamers treatmentStudies in progress No evidenceNo evidence
Specific treatmentAcute infections, independently of the mechanism of transmission (consensual indication) IB
High-risk accidental contaminations (consensual indication)IB
Chronic phase in children (consensual indication)IB
Reactivated Trypanosoma cruzi infection—AIDS or other immunosuppression (consensual indication)IC
Congenital infection (consensual indication)I B
Organ transplantation in which either the donor or the recipient has Chagas’ disease (consensual indication)IB
Late, chronic phase, including patients with the indeterminate or cardiac forms of Chagas’ disease (not consensual indications)IIIC