Your browser doesn't support javascript.
loading
Alterações contráteis segmentares e sua associação com arritmias ventriculares complexas, em pacientes chagásicos com eletrocardiograma normal ou borderline / Regional left ventricular dysfunction and its association with complex ventricular arrhythmia, in chagasic patients with normal or borderline electrocardiogram
Terzi, Flavia Vernin de Oliveira; Siqueira Filho, Aristarco Gonçalves de; Nascimento, Emília Matos do; Pereira, Basílio de Bragança; Pedrosa, Roberto Coury.
Affiliation
  • Terzi, Flavia Vernin de Oliveira; s.af
  • Siqueira Filho, Aristarco Gonçalves de; s.af
  • Nascimento, Emília Matos do; s.af
  • Pereira, Basílio de Bragança; s.af
  • Pedrosa, Roberto Coury; s.af
Rev. Soc. Bras. Med. Trop ; Rev. Soc. Bras. Med. Trop;43(5): 557-561, set.-out. 2010. ilus, tab
Article in Pt | LILACS | ID: lil-564294
Responsible library: BR1.1
RESUMO

INTRODUÇÃO:

Morte súbita representa a principal causa de óbito em chagásicos. Eventos fatais em pacientes saudáveis, com anormalidades contráteis, foram documentados. O objetivo deste trabalho é determinar a associação entre alteração contrátil e arritmias ventriculares complexas em pacientes chagásicos, classe funcional I, eletrocardiograma normal ou borderline e função ventricular preservada.

MÉTODOS:

Quarenta e nove pacientes com doença de Chagas e eletrocardiograma normal ou borderline realizaram ecocardiograma, teste ergométrico e Holter. Avaliou-se a contratilidade global e segmentar dos ventrículos e a presença de arritmias ventriculares complexas induzidas no esforço e espontâneas, respectivamente. A análise estatística foi feita pelo modelo Log-Linear geral.

RESULTADOS:

Idade média de 56 anos; 55 por cento mulheres. Alterações contráteis segmentares em 24,5 por cento dos pacientes; 12 por cento dos Holter e 18 por cento dos testes ergométricos positivos. Houve associação entre arritmia e alteração segmentar condicionada à presença da disfunção sistólica leve do ventrículo esquerdo.

CONCLUSÕES:

Alterações contráteis, na presença de disfunção global leve, indicam pacientes sob maior risco de arritmias complexas.
ABSTRACT

INTRODUCTION:

Sudden death is the major cause of death among chagasic patients. A significant number of fatal events in patients without apparent heart disease and borderline electrocardiogram, but with contractile ventricular dysfunction, have been documented. This work aimed to determine the association between regional dysfunction and the presence of ventricular arrhythmia in chagasic patients without apparent heart disease.

METHODS:

Forty-nine patients with normal or borderline electrocardiogram were submitted to echocardiogram, exercise stress test and Holter. The presence of cardiac contractile alterations and complex ventricular arrhythmia was analyzed. Statistic analysis used the general Log-Linear model.

RESULTS:

Mean age 56 years-old; 55 percent women. Regional ventricular dysfunction was verified in 24.5 percent of patients; positive Holter in 12 percent and exercise stress test in 18 percent. An association between complex ventricular arrhythmia and contractile abnormalities in the presence of mild left ventricle dysfunction was verified.

CONCLUSIONS:

Regional contractile abnormalities with mild left ventricle dysfunction in Chagasic patients indicate a group with higher risk of complex ventricular arrhythmias, who require specific follow-up.
Subject(s)
Key words
Full text: 1 Collection: 01-internacional Database: LILACS Main subject: Arrhythmias, Cardiac / Chagas Disease / Ventricular Dysfunction, Left Type of study: Diagnostic_studies / Prognostic_studies / Risk_factors_studies Limits: Adult / Aged / Female / Humans / Male Language: Pt Journal: Rev. Soc. Bras. Med. Trop Journal subject: MEDICINA TROPICAL Year: 2010 Document type: Article Country of publication: Brazil
Full text: 1 Collection: 01-internacional Database: LILACS Main subject: Arrhythmias, Cardiac / Chagas Disease / Ventricular Dysfunction, Left Type of study: Diagnostic_studies / Prognostic_studies / Risk_factors_studies Limits: Adult / Aged / Female / Humans / Male Language: Pt Journal: Rev. Soc. Bras. Med. Trop Journal subject: MEDICINA TROPICAL Year: 2010 Document type: Article Country of publication: Brazil