Quality of Life Research

, Volume 28, Issue 1, pp 67–72 | Cite as

The prognostic value of health-related quality of life in patients with Chagas heart disease

  • Henrique Silveira CostaEmail author
  • Márcia Maria Oliveira Lima
  • Pedro Henrique Scheidt Figueiredo
  • Ana Thereza Chaves
  • Maria Carmo Pereira Nunes
  • Manoel Otávio da Costa Rocha



To verify the prognostic value of health-related quality of life (HRQoL) and the differences in HRQoL and clinical variables between groups of Chagas heart disease (CHD) patients with and without cardiovascular adverse events.


Seventy-five CHD patients were evaluated by echocardiography, maximal exercise testing, and Short-form of Health Survey (SF-36) Questionnaire. Patients were followed during 6 years. In the statistical analysis, uni- and multivariate Cox regression were performed to verify the accuracy of the HRQoL in predicting cardiovascular events.


After the follow-up period (41 ± 12 months), 20 patients (27%) had adverse events. Those with poor outcome had lower left ventricular ejection fraction (LVEF) (p = 0.002), higher left ventricular end-diastolic diameter (LVDd) (p = 0.019), and worse scores in general health perceptions (p = 0.047), social role functioning (p = 0.026), and mental component summary (p = 0.043) of SF-36. Patients with lower LVEF (p = 0.003), higher LVDd (p = 0.022), worse HRQoL in the general heath perceptions domain (p = 0.022), and mental component summary (p = 0.031) were associated with worse prognosis. In the multivariate Cox regression, LVEF (HR 0.94, 95% CI from 0.90 to 0.98, p = 0.007) and mental component summary (HR 0.98, 95% CI from 0.94 to 1.00, p = 0.047) remained as independent predictors of adverse events in CHD patients.


The assessment of HRQoL, especially the mental component, should be taken into account to provide an accurate prognosis in addition to other well-established predictors of poor outcomes in CHD patients.


Chagas disease Chagas heart disease Health-related quality of life Prognosis 



This study was funded by the Brazilian National Council for Scientific and Technological Development (CNPq).

Compliance with ethical standards

Conflict of interest

All authors declare no conflict of interest.

Ethical approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

Informed consent

Informed consent was obtained from all individual participants included in the study.


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Copyright information

© Springer Nature Switzerland AG 2018

Authors and Affiliations

  • Henrique Silveira Costa
    • 1
    Email author
  • Márcia Maria Oliveira Lima
    • 2
  • Pedro Henrique Scheidt Figueiredo
    • 2
  • Ana Thereza Chaves
    • 1
  • Maria Carmo Pereira Nunes
    • 1
  • Manoel Otávio da Costa Rocha
    • 1
  1. 1.Postgraduate Course of Infectious Diseases and Tropical Medicine, Department of Internal MedicineMedical School and Hospital das Clinicas of the Universidade Federal de Minas Gerais (UFMG)Belo HorizonteBrazil
  2. 2.Healthy and Biological Sciences Faculty, Physical Therapy SchoolUniversidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM)DiamantinaBrazil

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