2010
DOI: 10.1590/s0037-86822010000500004
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Digoxin serum levels in patients with Chagas' cardiomyopathy and heart failure

Abstract: Introduction: The purpose of this study was to determine digoxin serum concentrations in patients with Chagas' cardiomyopathy with chronic heart failure, because little is known concerning this laboratory test in patients with this condition. Methods: This study focuses on 29 (29%) out of 101 patients with chronic heart failure secondary to Chagas' cardiomyopathy receiving digoxin therapy. Digoxin was measured by the immune-enzymatic method. Results: New York Heart Association Functional Class III/IV was noted… Show more

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Cited by 7 publications
(5 citation statements)
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References 21 publications
(24 reference statements)
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“…In patients with Chagas cardiomyopathy, digoxin treatment has been shown to be an independent predictor of mortality 27 . Moreover, serum digoxin levels have been found to be inadequate in almost half of patients with Chagas cardiomyopathy 28 . In the context of patients with IDC, a multivariate analysis performed on 180 patients with IDC showed that digoxin use is not an independent predictor of all-cause mortality 29 .…”
Section: Discussionmentioning
confidence: 99%
“…In patients with Chagas cardiomyopathy, digoxin treatment has been shown to be an independent predictor of mortality 27 . Moreover, serum digoxin levels have been found to be inadequate in almost half of patients with Chagas cardiomyopathy 28 . In the context of patients with IDC, a multivariate analysis performed on 180 patients with IDC showed that digoxin use is not an independent predictor of all-cause mortality 29 .…”
Section: Discussionmentioning
confidence: 99%
“…Experimentalmente, o uso de espironolactona melhora a sobrevida e reverte o remodelamento ventricular esquerdo 251 . O nível sanguíneo de digoxina deve ser determinado nos pacientes de etiologia chagásica 248,252 . O tratamento específico, com agentes antiparasitários, na IC da cardiopatia chagásica crônica não possui evidências para sua recomendação 253 .…”
Section: Cardiotoxidade Dos Quimioterápicos (Tabelas 31 E 32)unclassified
“…8 Furthermore, it has been demonstrated that a substantial number of patients with CHF secondary to Chagas cardiomyopathy are found to have increased digoxin serum levels, even at the toxic level. 54 Therefore, digoxin levels should be monitored in patients with Chagas cardiomyopathy with CHF, and serum levels adjusted to non-toxic levels (<1 ng/ml). No study has addressed the use of ivabradine in patients with Chagas cardiomyopathy with CHF thus far.…”
Section: Stage Cmentioning
confidence: 99%