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We have developed a finite-element surface model of human atria, in order to study normal and abnormal patterns of atrial activation. To characterize electrical activity in both atrial muscle and cardiac pacemaker regions, Fitzhugh- Nagumo-type equations were employed. Model equations were tested using a simplified geometry containing major topological features of both atria. The model is able to...
Objective: The purpose of this study was to determine the direct effects of remifentanil on inotropy of human myocardial tissue removed from failing explanted hearts of cardiac transplant recipients. Design: In vitro, prospective study with repeated measures. Setting: Research laboratory in a tertiary referral center. Interventions: The authors studied the effects of remifentanil on isometric myocardial...
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