Aspirin plus verapamil relieves angina and perfusion abnormalities in patients with coronary microvascular dysfunction and Chagas disease: a pilot non-randomized study
Rev. Soc. Bras. Med. Trop
; 54: e01812021, 2021. tab, graf
Article
en En
| LILACS
| ID: biblio-1347096
Biblioteca responsable:
BR1.1
ABSTRACT
Abstract INTRODUCTION:
Most patients with chronic cardiomyopathy of Chagas disease (CCCD) harbor a secondary cause of coronary microvascular dysfunction (CMD), for which there is no evidence-based therapy. We evaluated the impact of verapamil plus aspirin on symptoms and perfusion abnormalities in patients with CCCD and CMD.METHODS:
Consecutive patients with angina pectoris, who had neither coronary artery obstructions nor moderate-severe left ventricular dysfunction (left ventricular ejection fraction > 40%) despite showing wall motion abnormalities on ventriculography, were referred for invasive angiography and tested for Chagas disease. Thirty-two patients with confirmed CCCD and ischemia on stress-rest SPECT myocardial perfusion scintigraphy (MPS) were included. Clinical evaluation, quality of life (EQ-5D/ Seattle Angina Questionnaire), and MPS were assessed before and after 3 months of treatment with oral verapamil plus aspirin (n=26) or placebo (n=6).RESULTS:
The mean patient age was 64 years, and 18 (56%) were female. The ischemic index summed difference score (SDS) in MPS was significantly reduced by 55.6% after aspirin+verapamil treatment. A decrease in SDS was observed in 20 (77%) participants, and in 10 participants, no more ischemia could be detected. Enhancements in quality of life were also detected. No change in symptoms or MPS was observed in the placebo group.CONCLUSIONS:
This low-cost 3-month treatment for patients diagnosed with CCCD and CMD was safe and resulted in a 55.6% reduction in ischemic burden, symptomatic improvement, and better quality of life.Palabras clave
Texto completo:
1
Bases de datos:
LILACS
Asunto principal:
Calidad de Vida
/
Enfermedad de Chagas
Tipo de estudio:
Clinical_trials
Límite:
Female
/
Humans
/
Male
Idioma:
En
Revista:
Rev. Soc. Bras. Med. Trop
Asunto de la revista:
MEDICINA TROPICAL
Año:
2021
Tipo del documento:
Article
País de afiliación:
Brasil