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1.
Cureus ; 10(1): e2090, 2018 Jan 20.
Article in English | MEDLINE | ID: mdl-29564195

ABSTRACT

The left bundle-branch block (LBBB) is related to worsening cardiac performance. We describe a case of a patient with an intermittent left bundle-branch block who underwent biventricular pacemaker implantation. We noted a detrimental effect on the performance of her left ventricle with the presence of the LBBB as compared to the performance after she underwent biventricular pacing or after reversal of LBBB (i.e., native rhythm with narrow QRS). Her LBBB was accompanied by increased isovolumetric contraction time, longer pre-ejection period, and increased myocardial performance index (i.e., the Tei index) compared to her sinus rhythm with a narrow QRS complex with or under biventricular pacing.

2.
REBLAMPA Rev. bras. latinoam. marcapasso arritmia ; 19(2): 112-117, abr.-jun. 2006. ilus, tab
Article in Portuguese | LILACS | ID: lil-438640

ABSTRACT

Objetivo: Avaliar a importância clínica da presença de marcapasso definitivo (MPD) previamente ao implante de CDI de nossa instituição, foram selecionados 275 submetidos a implante de CDI para prevenção secundária de morte súbita cardíaca (MSC), agrupados de acordo com a cardiomiopatia de base e a presença de MPD prévio ao implante de CDI. As variáveis analisadas foram: sexo, idade, CF-NYHAA, medicações, ritmo cardíaco, FEVE e TVNS. Para análise estatística, utilizou-se o método de Kaplan Meier e o teste de log-rank. Resultados: A amostra reduzida de pacientes com consistentes...


Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Chagas Disease/complications , Chagas Disease/diagnosis , Death, Sudden/prevention & control , Pacemaker, Artificial/adverse effects , Pacemaker, Artificial
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