Clinical Characteristics and Outcomes of Chagas Disease in the United States: A Multicenter Retrospective Analysis

Andrés F. Henao-Martínez Division of Infectious Diseases, Department of Medicine, University of Colorado Denver, Aurora, Colorado;

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Christian Olivo-Freites Ryan Health, Infectious Diseases, New York, New York;

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Nelson I. Agudelo Higuita Department of Medicine, Section of Infectious Diseases, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma;
Instituto de Enfermedades Infecciosas y Parasitología Antonio Vidal, Tegucigalpa, Honduras;

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Carolina Ferraz Division of Infectious Diseases, Department of Medicine, University of Colorado Denver, Aurora, Colorado;

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Carlos Franco-Paredes Hospital Infantil de México, Ciudad de México, Mexico;
Instituto Conmemorativo Gorgas de Estudios de la Salud, Panama City, Panama;

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Jose Tuells Department of Community Nursing, Preventive Medicine and Public Health and History of Science, University of Alicante, Alicante, Spain;

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Laila Woc-Colburn Division of Infectious Diseases, Emory University, Atlanta, Georgia;

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Salvador Villalpando-Carrión Hospital Infantil de México, Ciudad de México, Mexico;

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Daniel B. Chastain Department of Clinical and Administrative Pharmacy, University of Georgia College of Pharmacy, Albany, Georgia;

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Anis Rassi Jr. Division of Cardiology, Anis Rassi Hospital, Goiânia, Brazil

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ABSTRACT.

Chagas disease affects approximately 300,000 patients in the United States. We evaluated a multicenter U.S.-based network to obtain clinical characteristics and outcomes of chronic Chagas disease by disease forms. This was a U.S.-based, multicenter, population-based, retrospective cohort study. We queried TriNetX, a global research network, to identify patients with dual-positive IgG serology for Trypanosoma cruzi. We captured outcomes of interest for up to 5 years. We found 429 patients with evidence of dual-positive T. cruzi IgG out of 19,831 patients with an available test result from 31 U.S. medical centers. The positive proportion for those tested was 2.2%, up to 4.6% among Hispanics. We found a prevalence of a positive Chagas serology of 0.02% among Hispanics. Cardiomyopathy risk reached an annual rate of 1.3% during the initial 5 years of follow-up among patients with the indeterminate form. We found no new events for pulmonary embolism, sudden death, or left ventricular aneurysms at 5 years. Annual risks for arrhythmias and stroke for chronic Chagas cardiomyopathy (CCC) were 1.6% and 0.8%, respectively. The yearly mortality and hospitalization rates for CCC were 2.7% and 17.1%, respectively. Only 13 patients had a documented antitrypanosomal therapy course within 6 months after diagnosis. Of those receiving treatment, 10 patients received benznidazole and three nifurtimox. Chagas disease screening in patients from endemic areas living in the United States remains crucial. Chronic Chagas cardiomyopathy carries a considerable disease burden, translating into increased morbidity and mortality and an enlarging medical health service utilization.

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Author Notes

Because this study used only de-identified patient records and did not involve collecting, using, or transmitting individually identifiable data, this study was exempted from Institutional Review Board approval. The current project is in HIPAA compliance, according to the Colorado Multiple Institutional Review Board at the University of Colorado Denver (Protocol 19-2011).

Authors’ addresses: Andrés F. Henao-Martínez and Carolina Ferraz, Division of Infectious Diseases, Department of Medicine, University of Colorado Denver, Aurora, CO, E-mails: andres.henaomartinez@cuanschutz.edu and cferraz.carolina@gmail.com. Christian Olivo Freites, Ryan Health, Infectious Diseases, New York, NY, E-mail: christianolivofreites@gmail.com. Nelson I. Agudelo Higuita, Department of Medicine, Section of Infectious Diseases, University of Oklahoma Health Sciences Center, Oklahoma City, OK, and Instituto Antonio Vidal, Tegucigalpa, Honduras, E-mail: nelson-agudelo-higuita@ouhsc.edu. Carlos Franco-Paredes, Hospital Infantil de México, Ciudad de México, Mexico, and Instituto Conmemorativo Gorgas de Estudios de la Salud, Panama City, Panama, E-mail: carlos.franco.paredes@gmail.com. Jose Tuells, Department of Community Nursing, Preventive Medicine and Public Health and History of Science, University of Alicante, Alicante, Spain, E-mail: tuells@ua.es. Laila Woc-Colburn, Division of Infectious Diseases, Emory University, Atlanta, GA, E-mail: laila.eugenia.woc-colburn@emory.edu. Salvador Villalpando-Carrión, Hospital Infantil de México, Ciudad de México, Mexico, E-mail: villalpandoca@himfg.edu.mx. Daniel B. Chastain, Department of Clinical and Administrative Pharmacy, University of Georgia College of Pharmacy, Albany, GA, E-mail: daniel.chastain@uga.edu. Anis Rassi Jr., Division of Cardiology, Anis Rassi Hospital, Goiânia, Brazil, E-mail: arassijr@terra.com.br.

Address correspondence to Andrés F. Henao-Martínez, University of Colorado, Anschutz Medical Campus, 12700 E. 19th Ave., Mail Stop B168, Aurora, CO 80045. E-mail: andres.henaomartinez@cuanschutz.edu
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