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Marin-Neto JA, Rassi A, Oliveira GMM, Correia LCL, Ramos Júnior AN, Luquetti AO, Hasslocher-Moreno AM, Sousa ASD, Paola AAVD, Sousa ACS, Ribeiro ALP, Correia Filho D, Souza DDSMD, Cunha-Neto E, Ramires FJA, Bacal F, Nunes MDCP, Martinelli Filho M, Scanavacca MI, Saraiva RM, Oliveira Júnior WAD, Lorga-Filho AM, Guimarães ADJBDA, Braga ALL, Oliveira ASD, Sarabanda AVL, Pinto AYDN, Carmo AALD, Schmidt A, Costa ARD, Ianni BM, Markman Filho B, Rochitte CE, Macêdo CT, Mady C, Chevillard C, Virgens CMBD, Castro CND, Britto CFDPDC, Pisani C, Rassi DDC, Sobral Filho DC, Almeida DRD, Bocchi EA, Mesquita ET, Mendes FDSNS, Gondim FTP, Silva GMSD, Peixoto GDL, Lima GGD, Veloso HH, Moreira HT, Lopes HB, Pinto IMF, Ferreira JMBB, Nunes JPS, Barreto-Filho JAS, Saraiva JFK, Lannes-Vieira J, Oliveira JLM, Armaganijan LV, Martins LC, Sangenis LHC, Barbosa MPT, Almeida-Santos MA, Simões MV, Yasuda MAS, Moreira MDCV, Higuchi MDL, Monteiro MRDCC, Mediano MFF, Lima MM, Oliveira MTD, Romano MMD, Araujo NNSLD, Medeiros PDTJ, Alves RV, Teixeira RA, Pedrosa RC, Aras Junior R, Torres RM, Povoa RMDS, Rassi SG, Alves SMM, Tavares SBDN, Palmeira SL, Silva Júnior TLD, Rodrigues TDR, Madrini Junior V, Brant VMDC, Dutra WO, Dias JCP. SBC Guideline on the Diagnosis and Treatment of Patients with Cardiomyopathy of Chagas Disease - 2023. Arq Bras Cardiol 2023; 120:e20230269. [PMID: 37377258 PMCID: PMC10344417 DOI: 10.36660/abc.20230269] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2023] Open
Affiliation(s)
- José Antonio Marin-Neto
- Universidade de São Paulo , Faculdade de Medicina de Ribeirão Preto , Ribeirão Preto , SP - Brasil
| | - Anis Rassi
- Hospital do Coração Anis Rassi , Goiânia , GO - Brasil
| | | | | | | | - Alejandro Ostermayer Luquetti
- Centro de Estudos da Doença de Chagas , Hospital das Clínicas da Universidade Federal de Goiás , Goiânia , GO - Brasil
| | | | - Andréa Silvestre de Sousa
- Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz , Rio de Janeiro , RJ - Brasil
| | | | - Antônio Carlos Sobral Sousa
- Universidade Federal de Sergipe , São Cristóvão , SE - Brasil
- Hospital São Lucas , Rede D`Or São Luiz , Aracaju , SE - Brasil
| | | | | | | | - Edecio Cunha-Neto
- Universidade de São Paulo , Faculdade de Medicina da Universidade, São Paulo , SP - Brasil
| | - Felix Jose Alvarez Ramires
- Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo , São Paulo , SP - Brasil
| | - Fernando Bacal
- Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo , São Paulo , SP - Brasil
| | | | - Martino Martinelli Filho
- Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo , São Paulo , SP - Brasil
| | - Maurício Ibrahim Scanavacca
- Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo , São Paulo , SP - Brasil
| | - Roberto Magalhães Saraiva
- Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz , Rio de Janeiro , RJ - Brasil
| | | | - Adalberto Menezes Lorga-Filho
- Instituto de Moléstias Cardiovasculares , São José do Rio Preto , SP - Brasil
- Hospital de Base de Rio Preto , São José do Rio Preto , SP - Brasil
| | | | | | - Adriana Sarmento de Oliveira
- Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo , São Paulo , SP - Brasil
| | | | - Ana Yecê das Neves Pinto
- Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz , Rio de Janeiro , RJ - Brasil
| | | | - Andre Schmidt
- Universidade de São Paulo , Faculdade de Medicina de Ribeirão Preto , Ribeirão Preto , SP - Brasil
| | - Andréa Rodrigues da Costa
- Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz , Rio de Janeiro , RJ - Brasil
| | - Barbara Maria Ianni
- Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo , São Paulo , SP - Brasil
| | | | - Carlos Eduardo Rochitte
- Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo , São Paulo , SP - Brasil
- Hcor , Associação Beneficente Síria , São Paulo , SP - Brasil
| | | | - Charles Mady
- Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo , São Paulo , SP - Brasil
| | - Christophe Chevillard
- Institut National de la Santé Et de la Recherche Médicale (INSERM), Marselha - França
| | | | | | | | - Cristiano Pisani
- Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo , São Paulo , SP - Brasil
| | | | | | | | - Edimar Alcides Bocchi
- Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo , São Paulo , SP - Brasil
| | - Evandro Tinoco Mesquita
- Hospital Universitário Antônio Pedro da Faculdade Federal Fluminense , Niterói , RJ - Brasil
| | | | | | | | | | | | - Henrique Horta Veloso
- Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz , Rio de Janeiro , RJ - Brasil
| | - Henrique Turin Moreira
- Hospital das Clínicas , Faculdade de Medicina de Ribeirão Preto , Universidade de São Paulo , Ribeirão Preto , SP - Brasil
| | | | | | | | - João Paulo Silva Nunes
- Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo , São Paulo , SP - Brasil
- Fundação Zerbini, Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo , São Paulo , SP - Brasil
| | | | | | | | | | | | - Luiz Cláudio Martins
- Universidade Estadual de Campinas , Faculdade de Ciências Médicas , Campinas , SP - Brasil
| | | | | | | | - Marcos Vinicius Simões
- Universidade de São Paulo , Faculdade de Medicina de Ribeirão Preto , Ribeirão Preto , SP - Brasil
| | | | | | - Maria de Lourdes Higuchi
- Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo , São Paulo , SP - Brasil
| | | | - Mauro Felippe Felix Mediano
- Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz , Rio de Janeiro , RJ - Brasil
- Instituto Nacional de Cardiologia (INC), Rio de Janeiro, RJ - Brasil
| | - Mayara Maia Lima
- Secretaria de Vigilância em Saúde , Ministério da Saúde , Brasília , DF - Brasil
| | | | | | | | | | - Renato Vieira Alves
- Instituto René Rachou , Fundação Oswaldo Cruz , Belo Horizonte , MG - Brasil
| | - Ricardo Alkmim Teixeira
- Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo , São Paulo , SP - Brasil
| | - Roberto Coury Pedrosa
- Hospital Universitário Clementino Fraga Filho , Instituto do Coração Edson Saad - Universidade Federal do Rio de Janeiro , RJ - Brasil
| | | | | | | | | | - Silvia Marinho Martins Alves
- Ambulatório de Doença de Chagas e Insuficiência Cardíaca do Pronto Socorro Cardiológico Universitário da Universidade de Pernambuco (PROCAPE/UPE), Recife , PE - Brasil
| | | | - Swamy Lima Palmeira
- Secretaria de Vigilância em Saúde , Ministério da Saúde , Brasília , DF - Brasil
| | | | | | - Vagner Madrini Junior
- Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo , São Paulo , SP - Brasil
| | | | | | - João Carlos Pinto Dias
- Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz , Rio de Janeiro , RJ - Brasil
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Cianciulli TF, Albarracín GA, Napoli Llobera M, Prado NG, Saccheri MC, Hernández Vásquez YM, Méndez RJ, Beck MA, Baez KG, Balletti LR. Speckle tracking echocardiography in the indeterminate form of Chagas disease. Echocardiography 2020; 38:39-46. [PMID: 33140890 DOI: 10.1111/echo.14917] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 10/06/2020] [Accepted: 10/18/2020] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND Chagas disease is one of the most common diseases in Latin-America, and cardiac involvement is a significant cause of death. Assessment of myocardial strain may detect early myocardial damage. OBJECTIVES To determine differences in longitudinal strain using speckle tracking to assess regional and global left ventricular function in patients with the indeterminate form of Chagas disease, in comparison with a control group. METHODS This is a retrospective matched case-control study, conducted in a single center. We evaluated 45 adult patients with Chagas disease, diagnosed with 2 serological methods, without evidence of cardiac involvement, who were compared with 45 healthy control subjects, who were sex- and age-matched. All patients underwent Doppler echocardiography and longitudinal strain with speckle tracking. RESULTS Median age was 59 years, and 60% were female. Echocardiographic parameters were similar in patients with Chagas and control subjects. In patients with Chagas, global strain differed significantly from that of control subjects (-17 vs -20.3, P < .001). Segmental strain showed 7 abnormal segments in patients with Chagas (P < .05). CONCLUSIONS In patients with the indeterminate form of Chagas disease, global and segmental longitudinal peak systolic strain is reduced compared with healthy subjects, thus suggesting that it could be a sensitive technique to detect early myocardial damage. These findings could provide useful information regarding the pathophysiology of cardiac involvement and understand whether they might have prognostic usefulness or help develop strategies to modify the course and prognosis of patients with Chagas disease. A longitudinal prospective study would be necessary to validate our findings.
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Affiliation(s)
- Tomás Francisco Cianciulli
- Division of Cardiology, Echocardiography Laboratory, Hospital of the Government of the City of Buenos Aires "Dr. Cosme Argerich", Ciudad Autónoma de Buenos Aires, Argentina.,Researcher of the Ministry of Health of the Government of the City of Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
| | - Gerardo Ariel Albarracín
- Division of Cardiology, Echocardiography Laboratory, Hospital of the Government of the City of Buenos Aires "Dr. Cosme Argerich", Ciudad Autónoma de Buenos Aires, Argentina
| | - Mariano Napoli Llobera
- Division of Cardiology, Echocardiography Laboratory, Hospital of the Government of the City of Buenos Aires "Dr. Cosme Argerich", Ciudad Autónoma de Buenos Aires, Argentina
| | - Nilda Graciela Prado
- Division of Cardiology, Echocardiography Laboratory, Hospital of the Government of the City of Buenos Aires "Dr. Cosme Argerich", Ciudad Autónoma de Buenos Aires, Argentina.,Instituto Nacional de Parasitología "Dr. Mario Fatala Chaben", Ciudad Autónoma de Buenos Aires, Argentina
| | - María Cristina Saccheri
- Division of Cardiology, Echocardiography Laboratory, Hospital of the Government of the City of Buenos Aires "Dr. Cosme Argerich", Ciudad Autónoma de Buenos Aires, Argentina
| | | | - Ricardo José Méndez
- Division of Cardiology, Echocardiography Laboratory, Hospital of the Government of the City of Buenos Aires "Dr. Cosme Argerich", Ciudad Autónoma de Buenos Aires, Argentina
| | - Martín Alejandro Beck
- Division of Cardiology, Echocardiography Laboratory, Hospital of the Government of the City of Buenos Aires "Dr. Cosme Argerich", Ciudad Autónoma de Buenos Aires, Argentina
| | - Karina Giselle Baez
- Division of Cardiology, Echocardiography Laboratory, Hospital of the Government of the City of Buenos Aires "Dr. Cosme Argerich", Ciudad Autónoma de Buenos Aires, Argentina
| | - Lorena Romina Balletti
- Division of Cardiology, Echocardiography Laboratory, Hospital of the Government of the City of Buenos Aires "Dr. Cosme Argerich", Ciudad Autónoma de Buenos Aires, Argentina
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Abstract
As the global COVID-19 pandemic advances, it increasingly impacts those vulnerable populations who already bear a heavy burden of neglected tropical disease. Chagas disease (CD), a neglected parasitic infection, is of particular concern because of its potential to cause cardiac, gastrointestinal, and other complications which could increase susceptibility to COVID-19. The over one million people worldwide with chronic Chagas cardiomyopathy require special consideration because of COVID-19’s potential impact on the heart, yet the pandemic also affects treatment provision to people with acute or chronic indeterminate CD. In this document, a follow-up to the WHF-IASC Roadmap on CD, we assess the implications of coinfection with SARS-CoV-2 and Trypanosoma cruzi, the etiological agent of CD. Based on the limited evidence available, we provide preliminary guidance for testing, treatment, and management of patients affected by both diseases, while highlighting emerging healthcare access challenges and future research needs.
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Teixeira TL, Castilhos P, Rodrigues CC, da Silva AA, Brígido RT, Teixeira SC, Borges BC, Dos Santos MA, Martins FA, Santos PCF, Servato JPS, Silva MS, da Silva MJB, Elias MC, da Silva CV. Experimental evidences that P21 protein controls Trypanosoma cruzi replication and modulates the pathogenesis of infection. Microb Pathog 2019; 135:103618. [PMID: 31310832 DOI: 10.1016/j.micpath.2019.103618] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 07/04/2019] [Accepted: 07/06/2019] [Indexed: 10/26/2022]
Abstract
P21 is a protein secreted by Trypanosoma cruzi (T. cruzi). Previous studies have shown a spectrum of biological activities performed by P21 such as induction of phagocytosis, leukocyte chemotaxis and inhibition of angiogenesis. However, the activity of P21 in T. cruzi infection remains unknown. Here, we reported the role of P21 in mice harboring late T. cruzi infection. Treatment with recombinant P21 protein (rP21) reduced parasite load and angiogenesis, and induced fibrosis in the cardiac tissue of infected mice. In addition, rP21 reduced the growth of epimastigotes, inhibited intracellular replication of amastigotes and modulated the parasite cell cycle. Our data suggest that P21 controls parasite replication in the host, supporting the survival of both parasite and host.
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Affiliation(s)
- Thaise L Teixeira
- Laboratório de Tripanosomatídeos, Departamento de Imunologia, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Rua Piauí, Bloco 2B Sala 200 Campus Umuarama, 38400-902, Uberlândia, MG, Brazil
| | - Patrícia Castilhos
- Laboratório de Tripanosomatídeos, Departamento de Imunologia, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Rua Piauí, Bloco 2B Sala 200 Campus Umuarama, 38400-902, Uberlândia, MG, Brazil
| | - Cassiano C Rodrigues
- Laboratório de Tripanosomatídeos, Departamento de Imunologia, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Rua Piauí, Bloco 2B Sala 200 Campus Umuarama, 38400-902, Uberlândia, MG, Brazil
| | - Aline A da Silva
- Laboratório de Tripanosomatídeos, Departamento de Imunologia, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Rua Piauí, Bloco 2B Sala 200 Campus Umuarama, 38400-902, Uberlândia, MG, Brazil
| | - Rebecca Ts Brígido
- Laboratório de Tripanosomatídeos, Departamento de Imunologia, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Rua Piauí, Bloco 2B Sala 200 Campus Umuarama, 38400-902, Uberlândia, MG, Brazil
| | - Samuel C Teixeira
- Laboratório de Tripanosomatídeos, Departamento de Imunologia, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Rua Piauí, Bloco 2B Sala 200 Campus Umuarama, 38400-902, Uberlândia, MG, Brazil
| | - Bruna C Borges
- Laboratório de Tripanosomatídeos, Departamento de Imunologia, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Rua Piauí, Bloco 2B Sala 200 Campus Umuarama, 38400-902, Uberlândia, MG, Brazil
| | - Marlus A Dos Santos
- Laboratório de Tripanosomatídeos, Departamento de Imunologia, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Rua Piauí, Bloco 2B Sala 200 Campus Umuarama, 38400-902, Uberlândia, MG, Brazil
| | - Flávia A Martins
- Laboratório de Tripanosomatídeos, Departamento de Imunologia, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Rua Piauí, Bloco 2B Sala 200 Campus Umuarama, 38400-902, Uberlândia, MG, Brazil
| | - Paulo César F Santos
- Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de São Paulo-Escola Paulista de Medicina, São Paulo - São Paulo, Brazil
| | | | - M S Silva
- Centro de Toxinas, Resposta Imune e Sinalização Celular, Instituto Butantan, São Paulo, São Paulo, Brazil
| | - M J B da Silva
- Departamento de Imunologia, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - M C Elias
- Centro de Toxinas, Resposta Imune e Sinalização Celular, Instituto Butantan, São Paulo, São Paulo, Brazil
| | - Claudio V da Silva
- Laboratório de Tripanosomatídeos, Departamento de Imunologia, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Rua Piauí, Bloco 2B Sala 200 Campus Umuarama, 38400-902, Uberlândia, MG, Brazil.
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Nunes MCP, Beaton A, Acquatella H, Bern C, Bolger AF, Echeverría LE, Dutra WO, Gascon J, Morillo CA, Oliveira-Filho J, Ribeiro ALP, Marin-Neto JA. Chagas Cardiomyopathy: An Update of Current Clinical Knowledge and Management: A Scientific Statement From the American Heart Association. Circulation 2018; 138:e169-e209. [DOI: 10.1161/cir.0000000000000599] [Citation(s) in RCA: 201] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background:
Chagas disease, resulting from the protozoan
Trypanosoma cruzi
, is an important cause of heart failure, stroke, arrhythmia, and sudden death. Traditionally regarded as a tropical disease found only in Central America and South America, Chagas disease now affects at least 300 000 residents of the United States and is growing in prevalence in other traditionally nonendemic areas. Healthcare providers and health systems outside of Latin America need to be equipped to recognize, diagnose, and treat Chagas disease and to prevent further disease transmission.
Methods and Results:
The American Heart Association and the Inter-American Society of Cardiology commissioned this statement to increase global awareness among providers who may encounter patients with Chagas disease outside of traditionally endemic environments. In this document, we summarize the most updated information on diagnosis, screening, and treatment of
T cruzi
infection, focusing primarily on its cardiovascular aspects. This document also provides quick reference tables, highlighting salient considerations for a patient with suspected or confirmed Chagas disease.
Conclusions:
This statement provides a broad summary of current knowledge and practice in the diagnosis and management of Chagas cardiomyopathy. It is our intent that this document will serve to increase the recognition of Chagas cardiomyopathy in low-prevalence areas and to improve care for patients with Chagas heart disease around the world.
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Acquatella H, Asch FM, Barbosa MM, Barros M, Bern C, Cavalcante JL, Echeverria Correa LE, Lima J, Marcus R, Marin-Neto JA, Migliore R, Milei J, Morillo CA, Nunes MCP, Campos Vieira ML, Viotti R. Recommendations for Multimodality Cardiac Imaging in Patients with Chagas Disease: A Report from the American Society of Echocardiography in Collaboration With the InterAmerican Association of Echocardiography (ECOSIAC) and the Cardiovascular Imaging Department of the Brazilian Society of Cardiology (DIC-SBC). J Am Soc Echocardiogr 2018; 31:3-25. [DOI: 10.1016/j.echo.2017.10.019] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Nunes MCP, Badano LP, Marin-Neto JA, Edvardsen T, Fernández-Golfín C, Bucciarelli-Ducci C, Popescu BA, Underwood R, Habib G, Zamorano JL, Saraiva RM, Sabino EC, Botoni FA, Barbosa MM, Barros MVL, Falqueto E, Simões MV, Schmidt A, Rochitte CE, Rocha MOC, Ribeiro ALP, Lancellotti P. Multimodality imaging evaluation of Chagas disease: an expert consensus of Brazilian Cardiovascular Imaging Department (DIC) and the European Association of Cardiovascular Imaging (EACVI). Eur Heart J Cardiovasc Imaging 2017; 19:459-460n. [PMID: 29029074 DOI: 10.1093/ehjci/jex154] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 05/16/2017] [Indexed: 11/14/2022] Open
Abstract
Aims To develop a document by Brazilian Cardiovascular Imaging Department (DIC) and the European Association of Cardiovascular Imaging (EACVI) to review and summarize the most recent evidences about the non-invasive assessment of patients with Chagas disease, with the intent to set up a framework for standardized cardiovascular imaging to assess cardiovascular morphologic and functional disturbances, as well as to guide the subsequent process of clinical decision-making. Methods and results Chagas disease remains one of the most prevalent infectious diseases in Latin America, and has become a health problem in non-endemic countries. Dilated cardiomyopathy is the most severe manifestation of Chagas disease, which causes substantial disability and early mortality in the socially most productive population leading to a significant economical burden. Prompt and correct diagnosis of Chagas disease requires specialized clinical expertise to recognize the unique features of this disease. The appropriate and efficient use of cardiac imaging is pivotal for diagnosing the cardiac involvement in Chagas disease, to stage the disease, assess patients' prognosis and address management. Echocardiography is the most common imaging modality used to assess, and follow-up patients with Chagas disease. The presence of echocardiographic abnormalities is of utmost importance, since it allows to stage patients according to disease progression. In early stages of cardiac involvement, echocardiography may demonstrate segmental left ventricuar wall motion abnormalities, mainly in the basal segments of inferior, inferolateral walls, and the apex, which cannot be attributed to obstructive coronary artery arteries. The prevalence of segmental wall motion abnormalities varies according to the stage of the disease, reaching about 50% in patients with left ventricular dilatation and dysfunction. Speckle tracking echocardiography allows a more precise and quantitative measurement of the regional myocardial function. Since segmental wall motion abnormalities are frequent in Chagas disease, speckle tracking echocardiography may have an important clinical application in these patients, particularly in the indeterminate forms when abnormalities are more subtle. Speckle tracking echocardiography can also quantify the heterogeneity of systolic contraction, which is associated with the risk of arrhythmic events. Three-dimensional (3D) echocardiography is superior to conventional two-dimensional (2D) echocardiography for assessing more accurately the left ventricular apex and thus to detect apical aneurysms and thrombus in patients in whom ventricular foreshortening is suspected by 2D echocardiography. In addition, 3D echocardiography is more accurate than 2D Simpson s biplane rule for assessing left ventricular volumes and function in patients with significant wall motion abnormalities, including aneurysms with distorted ventricular geometry. Contrast echocardiography has the advantage to enhancement of left ventricular endocardial border, allowing for more accurate detection of ventricular aneurysms and thrombus in Chagas disease. Diastolic dysfunction is an important hallmark of Chagas disease even in its early phases. In general, left ventricular diastolic and systolic dysfunction coexist and isolated diastolic dysfunction is uncommon but may be present in patients with the indeterminate form. Right ventricular dysfunction may be detected early in the disease course, but in general, the clinical manifestations occur late at advanced stages of Chagas cardiomyopathy. Several echocardiographic parameters have been used to assess right ventricular function in Chagas disease, including qualitative evaluation, myocardial performance index, tissue Doppler imaging, tricuspid annular plane systolic excursion, and speckle tracking strain. Cardiac magnetic resonance (CMR) is useful to assess global and regional left ventricular function in patients with Chagas diseases. Myocardial fibrosis is a striking feature of Chagas cardiomyopathy and late gadolinium enhancement (LGE) is used to detect and quantify the extension of myocardial fibrosis. Myocardial fibrosis might have a role in risk stratification of patients with Chagas disease. Limited data are available regarding right ventricular function assessed by CMR in Chagas disease. Radionuclide ventriculography is used for global biventricular function assessment in patients with suspected or definite cardiac involvement in Chagas disease with suboptimal acoustic window and contraindication to CMR. Myocardial perfusion scintigraphy may improve risk stratification to define cardiac involvement in Chagas disease, especially in the patients with devices who cannot be submitted to CMR and in the clinical setting of Chagas patients whose main complaint is atypical chest pain. Detection of reversible ischemic defects predicts further deterioration of left ventricular systolic function and helps to avoid unnecessary cardiac catheterization and coronary angiography. Conclusion Cardiac imaging is crucial to detect the cardiac involvement in patients with Chagas disease, stage the disease and stratify patient risk and address management. Unfortunately, most patients live in regions with limited access to imaging methods and point-of-care, simplified protocols, could improve the access of these remote populations to important information that could impact in the clinical management of the disease. Therefore, there are many fields for further research in cardiac imaging in Chagas disease. How to better provide an earlier diagnosis of cardiac involvement and improve patients risk stratification remains to be addressed using different images modalities.
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Affiliation(s)
- Maria Carmo P Nunes
- Department of Internal Medicine, School of Medicine and Hospital das Clínicas of the Federal University of Minas Gerais, Av. Professor Alfredo Balena, 190, Santa Efigênia, 30130?100 Belo Horizonte, MG, Brazil
| | - Luigi Paolo Badano
- Department of Cardiac, Thoracic and Vascular Sciences, University of Padova, Padova, Italy
| | - J Antonio Marin-Neto
- Department of Internal Medicine, School of Medicine of Ribeirão Preto of the University de Sao Paulo (USP), Av. Bandeirantes, 3900, Monte Alegre, Ribeiräo Preto, Säo Paulo 14049-900, Brazil
| | - Thor Edvardsen
- Department of Cardiology, Oslo University Hospital and University of Oslo, Oslo, Norway
| | | | - Chiara Bucciarelli-Ducci
- Cardiovascular Biomedical Research Unit, Bristol Heart Institute, Bristol NIHR Biomedical Research Unit, University of Bristol, Bristol, UK
| | - Bogdan A Popescu
- Department of Cardiology, University of Medicine and Pharmacy 'Carol Davila'-Euroecolab, Institute of Cardiovascular Diseases 'Prof. Dr. C. C. Iliescu', Bucharest, Romania
| | - Richard Underwood
- Department of non-invasive cardiac imaging, Royal Brompton Hospital and Harefield Hospital, London, UK
| | - Gilbert Habib
- Department of Cardiology, La Timone Hospital, Marseille, France
| | - Jose Luis Zamorano
- Department of Cardiology, University Alcala Hospital Ramon y Cajal, Madrid, Spain
| | - Roberto Magalhães Saraiva
- Department of Cardiology; Evandro Chagas National Institute of Infectious Diseases, Oswaldo Cruz Foundation, Av. Brasil, 4365 - Manguinhos, Rio de Janeiro 21040-360, Brazil
| | - Ester Cerdeira Sabino
- Department of Infectious Disease, School of Medicine of the University de Sao Paulo (USP), Av. Dr. Arnaldo, 455 Cerqueira César 01246903, Sao Paulo, Brazil
| | - Fernando A Botoni
- Department of Internal Medicine, School of Medicine and Hospital das Clínicas of the Federal University of Minas Gerais, Av. Professor Alfredo Balena, 190, Santa Efigênia, 30130?100 Belo Horizonte, MG, Brazil
| | - Márcia Melo Barbosa
- Department of Internal Medicine, School of Medicine and Hospital das Clínicas of the Federal University of Minas Gerais, Av. Professor Alfredo Balena, 190, Santa Efigênia, 30130?100 Belo Horizonte, MG, Brazil
| | - Marcio Vinicius L Barros
- Department of Internal Medicine, School of Medicine and Hospital das Clínicas of the Federal University of Minas Gerais, Av. Professor Alfredo Balena, 190, Santa Efigênia, 30130?100 Belo Horizonte, MG, Brazil
| | - Eduardo Falqueto
- Department of Cardiology, Hospital Felicio Rocho, Belo Horizonte, MG, Av. do Contorno, 9530 Prado, Belo Horizonte 21040-360, Brasil
| | - Marcus Vinicius Simões
- Department of Internal Medicine, School of Medicine of Ribeirão Preto of the University de Sao Paulo (USP), Av. Bandeirantes, 3900, Monte Alegre, Ribeiräo Preto, Säo Paulo 14049-900, Brazil
| | - André Schmidt
- Department of Internal Medicine, School of Medicine of Ribeirão Preto of the University de Sao Paulo (USP), Av. Bandeirantes, 3900, Monte Alegre, Ribeiräo Preto, Säo Paulo 14049-900, Brazil
| | - Carlos Eduardo Rochitte
- Department of Radiology, Instituto do Coração (InCor), School of Medicine of USP & Hospital do Coração, HCor, Heart Hospital, Associação do Sanatório Sírio, Av. Dr. Enéas de Carvalho Aguiar, 44 - Pinheiros, São Paulo 05403-900, Brazil
| | - Manoel Otávio Costa Rocha
- Department of Internal Medicine, School of Medicine and Hospital das Clínicas of the Federal University of Minas Gerais, Av. Professor Alfredo Balena, 190, Santa Efigênia, 30130?100 Belo Horizonte, MG, Brazil
| | - Antonio Luiz Pinho Ribeiro
- Department of Internal Medicine, School of Medicine and Hospital das Clínicas of the Federal University of Minas Gerais, Av. Professor Alfredo Balena, 190, Santa Efigênia, 30130?100 Belo Horizonte, MG, Brazil
| | - Patrizio Lancellotti
- Department of Cardiology, Heart Valve Clinic, CHU Sart Tilman, University of Liège Hospital, GIGA Cardiovascular Sciences, Liège, Belgium.,Department of Cardiology, Gruppo Villa Maria Care and Research, Anthea Hospital, Bari, Italy
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8
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Healy C, Viles-Gonzalez JF, Sáenz LC, Soto M, Ramírez JD, d'Avila A. Arrhythmias in chagasic cardiomyopathy. Card Electrophysiol Clin 2015; 7:251-268. [PMID: 26002390 DOI: 10.1016/j.ccep.2015.03.016] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Chagas disease, a chronic parasitosis caused by the protozoa Trypanosoma cruzi, is an increasing worldwide problem because of the number of cases in endemic areas and the migration of infected individuals to more developed regions. Chagas disease affects the heart through cardiac parasympathetic neuronal depopulation, immune-mediated myocardial injury, parasite persistence in cardiac tissue with secondary antigenic stimulation, and coronary microvascular abnormalities causing myocardial ischemia. A lack of knowledge exists for risk stratification, management, and prevention of ventricular arrhythmias in patients with chagasic cardiomyopathy. Catheter ablation can be effective for the management of recurrent ventricular tachycardia.
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Affiliation(s)
- Chris Healy
- Department of Cardiac Electrophysiology, University of Miami Miller School of Medicine, 1295 NW 14th Street, South Building, Suite A, Miami, FL 33125, USA
| | - Juan F Viles-Gonzalez
- Department of Cardiac Electrophysiology, University of Miami Miller School of Medicine, 1295 NW 14th Street, South Building, Suite A, Miami, FL 33125, USA
| | - Luis C Sáenz
- Cardiólogo-Electrofisiólogo, Fundación Cardio Infantil-Instituto de Cardiología, Calle 163A No 13B-60, Bogotá, Colombia
| | - Mariana Soto
- Cardiólogo-Electrofisiólogo, Fundación Cardio Infantil-Instituto de Cardiología, Calle 163A No 13B-60, Bogotá, Colombia
| | - Juan D Ramírez
- Cardiólogo-Electrofisiólogo, Fundación Cardio Infantil-Instituto de Cardiología, Calle 163A No 13B-60, Bogotá, Colombia
| | - Andre d'Avila
- Hospital Cardiologico, Rodovia SC 401, 121, Itacorubi, Florianopolis, Santa Catarina, Brazil, CEP: 88030-000.
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9
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Barbosa MM, Costa Rocha MO, Vidigal DF, Bicalho Carneiro RDC, Araújo RD, Palma MC, Lins de Barros MV, Nunes MCP. Early detection of left ventricular contractility abnormalities by two-dimensional speckle tracking strain in Chagas’ disease. Echocardiography 2015; 31:623-30. [PMID: 25232573 DOI: 10.1111/echo.12426] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Chagas' disease is an important cause of heart failure, and early identification of cardiac involvement may help to identify patients at risk for disease progression. Two-dimensional (2D) speckle tracking (ST) strain seems to be a useful tool to detect incipient ventricular dysfunction. This study aims to analyze if 2D strain can detect contractility abnormalities in asymptomatic patients with Chagas' disease. METHODS Seventy-eight asymptomatic Chagas' disease patients (46% male; age 44.7 ± 8.6 years) with normal cardiovascular exams and a control group of 38 healthy subjects (58% male; age 44.1 ± 9.2 years) were included in the study. Using 2D strain software, left ventricular (LV) end-systolic longitudinal, radial, and circumferential strain were measured. Global right ventricular (RV) longitudinal strain was also assessed. RESULTS Echocardiographic parameters of LV systolic and diastolic function were similar between patients and controls. 2D longitudinal strain in the basal inferior, and inferoseptal walls, as well as apical segment of the inferolateral wall were lower in patients compared with controls. 2D radial strain was reduced in several segments of the LV walls as well as the global radial strain. 2D circumferential strain at the basal segment of the anterior wall showed a lower value in patients compared with controls, whereas global circumferential strain was similar between patients and controls. 2D RV strain did not differ between groups. CONCLUSION In a subgroup of asymptomatic patients with Chagas' disease without evident cardiac involvement, 2D strain was reduced compared with healthy individuals, suggesting incipient LV dysfunction in these patients. 2D ST strain has the potential for detecting early myocardial impairment in the setting of Chagas' disease.
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10
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Rodríguez-Angulo HO, Toro-Mendoza J, Marques JA, Concepción JL, Bonfante-Cabarcas R, Higuerey Y, Thomas LE, Balzano-Nogueira L, López JR, Mijares A. Evidence of reversible bradycardia and arrhythmias caused by immunogenic proteins secreted by T. cruzi in isolated rat hearts. PLoS Negl Trop Dis 2015; 9:e0003512. [PMID: 25647069 PMCID: PMC4315581 DOI: 10.1371/journal.pntd.0003512] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Accepted: 01/02/2015] [Indexed: 12/03/2022] Open
Abstract
Rationale Chagas cardiomyopathy, caused by the protozoan Trypanosoma cruzi, is characterized by alterations in intracellular ion, heart failure and arrhythmias. Arrhythmias have been related to sudden death, even in asymptomatic patients, and their molecular mechanisms have not been fully elucidated. Objective The aim of this study is to demonstrate the effect of proteins secreted by T. cruzi on healthy, isolated beating rat heart model under a non-damage-inducing protocol. Methods and Results We established a non-damage-inducing recirculation-reoxygenation model where ultrafiltrate fractions of conditioned medium control or conditioned infected medium were perfused at a standard flow rate and under partial oxygenation. Western blotting with chagasic patient serum was performed to determine the antigenicity of the conditioned infected medium fractions. We observed bradycardia, ventricular fibrillation and complete atrioventricular block in hearts during perfusion with >50 kDa conditioned infected culture medium. The preincubation of conditioned infected medium with chagasic serum abolished the bradycardia and arrhythmias. The proteins present in the conditioned infected culture medium of >50 kDa fractions were recognized by the chagasic patient sera associated with arrhythmias. Conclusions These results suggest that proteins secreted by T. cruzi are involved in Chagas disease arrhythmias and may be a potential biomarker in chagasic patients. Chagas disease, caused by the parasite Trypanosoma cruzi, is an endemic disease of Latin-American countries, affecting an estimated 8 million people in 21 countries. It is spread by the bite of triatomine reduvid bug. Due to immigration towards non-endemic regions, the disease can spread and affect people around the world via blood transfusions. Infection usually occurs in childhood, and some patients may develop acute myocarditis; however, most remain asymptomatic for many years before chronic cardiac and/or gastrointestinal manifestations appear. Chagas disease is characterized by an acute phase, which is generally asymptomatic, or oligosymptomatic, an indeterminate phase, which may persist for several years, and a chronic phase in which dilated cardiomyopathy and arrhythmias are primarily observed and sudden death may occur. Once heart failure develops, death usually occurs within several years. In this work, we demonstrate the pathophysiological role of proteins secreted by T. cruzi on cardiac arrhythmias. The antigenicity of these fractions was tested by an immunological test using chagasic patients’ sera associated with arrhythmias. We showed that perfusion of the proteins secreted by T. cruzi, in an isolated beating rat heart model, induced cardiac arrhythmias such as bradycardia and complete atrioventricular block.
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Affiliation(s)
- Héctor O. Rodríguez-Angulo
- Laboratorio de Fisiología de Parásitos, Centro de Biofísica y Bioquímica, Instituto Venezolano de Investigaciones Científicas, Caracas, Venezuela
| | - Jhoan Toro-Mendoza
- Centro de Estudios Interdisciplinarios de la Física. Instituto Venezolano de Investigaciones Científicas, Caracas, Venezuela
| | - Juan A. Marques
- Servicio de Cardiología, Instituto de Medicina Tropical, Universidad Central de Venezuela, Caracas, Venezuela
| | - Juan L. Concepción
- Laboratorio de Enzimología de Parásitos, Departamento de Biología, Facultad de Ciencias, Universidad de Los Andes, Mérida, Venezuela
| | - Rafael Bonfante-Cabarcas
- Unidad de Investigaciones en Bioquímica, Decanato de Ciencias de la Salud, Universidad Centroccidental “Lisandro Alvarado”, Barquisimeto, Venezuela
| | - Yoliver Higuerey
- Servicio de Cultivos de Células y Tejidos, Centro de Biofísica y Bioquímica, Instituto Venezolano de Investigaciones Científicas, Caracas, Venezuela
| | - Luz E. Thomas
- Laboratorio de Fisiología Molecular Centro de Biofísica y Bioquímica, Instituto Venezolano de Investigaciones Científicas, Caracas, Venezuela
| | - Leandro Balzano-Nogueira
- Unidad de Agronomía y Soberanía Agroalimentaria, Instituto de Estudios Avanzados (IDEA), Caracas, Venezuela
| | - José R. López
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, Davis, California, United States of America
| | - Alfredo Mijares
- Laboratorio de Fisiología de Parásitos, Centro de Biofísica y Bioquímica, Instituto Venezolano de Investigaciones Científicas, Caracas, Venezuela
- * E-mail: ,
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11
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Nunes MCP, Dones W, Morillo CA, Encina JJ, Ribeiro AL. Chagas disease: an overview of clinical and epidemiological aspects. J Am Coll Cardiol 2013; 62:767-76. [PMID: 23770163 DOI: 10.1016/j.jacc.2013.05.046] [Citation(s) in RCA: 264] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2013] [Revised: 05/06/2013] [Accepted: 05/21/2013] [Indexed: 11/29/2022]
Abstract
Chagas disease, caused by the parasite Trypanosoma cruzi, is a serious health problem in Latin America and is an emerging disease in non-endemic countries. In recent decades, the epidemiological profile of the disease has changed due to new patterns of immigration and successful control in its transmission, leading to the urbanization and globalization of the disease. Dilated cardiomyopathy is the most important and severe manifestation of human chronic Chagas disease and is characterized by heart failure, ventricular arrhythmias, heart blocks, thromboembolic phenomena, and sudden death. This article will present an overview of the clinical and epidemiological aspects of Chagas disease. It will focus on several clinical aspects of the disease, such as chronic Chagas disease without detectable cardiac pathology, as well as dysautonomia, some specific features, and the principles of treatment of chronic cardiomyopathy.
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Affiliation(s)
- Maria Carmo Pereira Nunes
- Hospital das Clínicas e Faculdade de Medicina da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
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12
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Pérez-Molina JA, Norman F, López-Vélez R. Chagas disease in non-endemic countries: epidemiology, clinical presentation and treatment. Curr Infect Dis Rep 2012; 14:263-74. [PMID: 22477037 DOI: 10.1007/s11908-012-0259-3] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Imported Chagas disease (Trypanosoma cruzi infection) is increasingly recognized as an emerging problem in the USA and Europe due to immigration from Latin America. Most migrants from endemic countries will have been infected during childhood. Based on the natural history of the disease, up to 35 % of those infected may develop cardiac and/or gastrointestinal manifestations during the third or fourth decade of life. This disease was described more than 100 years ago, yet many challenges still remain such as the identification of risk factors for visceral involvement, effective treatment for chronic cases, and reliable markers of cure following treatment. Transmission of the infection may occur even in non-endemic areas through non-vectorial routes and many countries are therefore currently facing the challenge of this emerging public health problem.
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Affiliation(s)
- José A Pérez-Molina
- Tropical Medicine, Infectious Diseases Department, Hospital Universitario Ramón y Cajal, IRYCIS, Carretera de Colmenar Km 9,1, 28034, Madrid, Spain,
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13
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Abstract
Chagas cardiomyopathy is the most severe and life-threatening manifestation of human Chagas disease--a 'neglected' tropical disease caused by the protozoan parasite Trypanosoma cruzi. The disease is endemic in all continental Latin American countries, but has become a worldwide problem because of migration of infected individuals to developed countries, mainly in Europe and North America. Chagas cardiomyopathy results from the combined effects of persistent parasitism, parasite-driven tissue inflammation, microvascular and neurogenic dysfunction, and autoimmune responses triggered by the infection. Clinical presentation varies widely according to the extent of myocardial damage, and manifests mainly as three basic syndromes that can coexist in an individual patient: heart failure, cardiac arrhythmia, and thromboembolism. NYHA functional class, left ventricular systolic function, and nonsustained ventricular tachycardia are important prognostic markers of the risk of death. Management of Chagas cardiomyopathy focuses on the treatment of the three main syndromes. The use of β-blockers in patients with Chagas disease and heart failure is safe, well tolerated, and should be encouraged. Most specialists and international institutions now recommend specific antitrypanosomal treatment of patients with chronic Chagas disease, even in the absence of evidence obtained from randomized clinical trials. Further research on the management of patients with Chagas cardiomyopathy is necessary.
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14
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Machado FS, Jelicks LA, Kirchhoff LV, Shirani J, Nagajyothi F, Mukherjee S, Nelson R, Coyle CM, Spray DC, Campos de Carvalho AC, Guan F, Prado CM, Lisanti MP, Weiss LM, Montgomery SP, Tanowitz HB. Chagas heart disease: report on recent developments. Cardiol Rev 2012; 20:53-65. [PMID: 22293860 PMCID: PMC3275684 DOI: 10.1097/crd.0b013e31823efde2] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Chagas disease, caused by the parasite Trypanosoma cruzi, is an important cause of cardiac disease in endemic areas of Latin America. It is now being diagnosed in nonendemic areas because of immigration. Typical cardiac manifestations of Chagas disease include dilated cardiomyopathy, congestive heart failure, arrhythmias, cardioembolism, and stroke. Clinical and laboratory-based research to define the pathology resulting from T. cruzi infection has shed light on many of the cellular and molecular mechanisms leading to these manifestations. Antiparasitic treatment may not be appropriate for patients with advanced cardiac disease. Clinical management of Chagas heart disease is similar to that used for cardiomyopathies caused by other processes. Cardiac transplantation has been successfully performed in a small number of patients with Chagas heart disease.
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Affiliation(s)
- Fabiana S. Machado
- Departments of Biochemistry and Immunology, Institute of Biological Sciences, and Faculty of Medicine, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Linda A. Jelicks
- Gruss Magnetic Resonance Research Center and Department of Physiology and Biophysics, Albert Einstein College of Medicine, Bronx, NY
| | - Louis V. Kirchhoff
- Departments of Internal Medicine and Epidemiology, University of Iowa, Iowa City, IA
- Department of Veterans Affairs Medical Center, Iowa City, IA
| | - Jamshid Shirani
- Department of Cardiology St Luke’s Hospital and Health Network, Bethlehem, PA
| | - Fnu Nagajyothi
- Department of Pathology, Albert Einstein College of Medicine, Bronx, NY
| | - Shankar Mukherjee
- Department of Pathology, Albert Einstein College of Medicine, Bronx, NY
| | - Randin Nelson
- Department of Pathology, Albert Einstein College of Medicine, Bronx, NY
| | - Christina M. Coyle
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY
- Department of Parasitology, Jacobi Medical Center, Bronx, NY
| | - David C. Spray
- Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, Bronx, NY
| | - Antonio C. Campos de Carvalho
- Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, Bronx, NY
- National Cardiology Institute, Rio de Janeiro, Brazil
- Institute of Biophysics, Federal University of Rio de Janeiro, Brazil
| | - Fangxia Guan
- Bioengineering Department of Zhengzhou University, Zhengzhou, People’s Republic of China
| | - Cibele M. Prado
- Department of Pathology, University of São Paulo, Ribeirão Preto, Brazil
| | - Michael P. Lisanti
- Kimmel Cancer Center, Departments of Cancer Biology and Stem Cell Biology and Regenerative Medicine, Thomas Jefferson University, Philadelphia, PA
| | - Louis M. Weiss
- Department of Pathology, Albert Einstein College of Medicine, Bronx, NY
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY
- Department of Parasitology, Jacobi Medical Center, Bronx, NY
- Global Health Center, Albert Einstein College of Medicine, Bronx, NY
| | - Susan P. Montgomery
- Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, GA
| | - Herbert B. Tanowitz
- Department of Pathology, Albert Einstein College of Medicine, Bronx, NY
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY
- Department of Parasitology, Jacobi Medical Center, Bronx, NY
- Global Health Center, Albert Einstein College of Medicine, Bronx, NY
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