BACKGROUND AND PURPOSE: Chagas disease and ischemic stroke (IS) have a close but poorly understood correlation. In endemic settings, continued transmission over time has resulted in increasing prevalence of both asymptomatic infection and cardiomyopathy with increasing age. Latin America has made substantial progress towards Chagas disease control. Although several epidemiological studies have been conducted, information regarding epidemiology and distribution of IS in Chagas disease is still lacking. METHODS: We retrospectively studied the electronic medical record data of all patients with both IS and Chagas disease admitted at SARAH Hospitals across Brazil from 2009 to 2013 to make epidemiological quantifications and statistical inferences. RESULTS: A total of 279 patients with Chagas disease and IS were analyzed from 7729 IS-related admissions, indicating a median prevalence of 3.6% of Chagas disease in IS patients in our cohort. Mean age was 60 years, with female predominance (65%). Most of the cases were from Bahia (61%), followed by Minas Gerais (19%) and Goiás (9.7%). Low-income cities, with decreased access to healthcare, showed the highest number of cases. Distribution of vascular risk factors and outcome after stroke differed among the units. According to current guidelines, secondary prevention was inadequate in 60% of patients. CONCLUSIONS: Chagas disease was common in IS patients; prevalence of concurrent Chagas disease and IS was high in some regions of the country. However, the infection frequency seems to be reduced in the last few years. Public health issues for improving the treatment of Chagas disease and IS are urgently needed.
BACKGROUND AND PURPOSE:Chagas disease and ischemic stroke (IS) have a close but poorly understood correlation. In endemic settings, continued transmission over time has resulted in increasing prevalence of both asymptomatic infection and cardiomyopathy with increasing age. Latin America has made substantial progress towards Chagas disease control. Although several epidemiological studies have been conducted, information regarding epidemiology and distribution of IS in Chagas disease is still lacking. METHODS: We retrospectively studied the electronic medical record data of all patients with both IS and Chagas disease admitted at SARAH Hospitals across Brazil from 2009 to 2013 to make epidemiological quantifications and statistical inferences. RESULTS: A total of 279 patients with Chagas disease and IS were analyzed from 7729 IS-related admissions, indicating a median prevalence of 3.6% of Chagas disease in IS patients in our cohort. Mean age was 60 years, with female predominance (65%). Most of the cases were from Bahia (61%), followed by Minas Gerais (19%) and Goiás (9.7%). Low-income cities, with decreased access to healthcare, showed the highest number of cases. Distribution of vascular risk factors and outcome after stroke differed among the units. According to current guidelines, secondary prevention was inadequate in 60% of patients. CONCLUSIONS:Chagas disease was common in IS patients; prevalence of concurrent Chagas disease and IS was high in some regions of the country. However, the infection frequency seems to be reduced in the last few years. Public health issues for improving the treatment of Chagas disease and IS are urgently needed.
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