Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Time: Monday May 2nd, 2011 5:00pm Location: Buchanan A202
Document related concepts
Management of acute coronary syndrome wikipedia , lookup
Hypertrophic cardiomyopathy wikipedia , lookup
Cardiothoracic surgery wikipedia , lookup
Cardiac contractility modulation wikipedia , lookup
Cardiac surgery wikipedia , lookup
Myocardial infarction wikipedia , lookup
Electrocardiography wikipedia , lookup
Cardiac arrest wikipedia , lookup
Quantium Medical Cardiac Output wikipedia , lookup
Arrhythmogenic right ventricular dysplasia wikipedia , lookup
Transcript
Time: Monday May 2nd, 2011 5:00pm Location: Buchanan A202 Modeling Cardiac Arrhythmias as Reentrant Activity in Excitable Media Kelly Paton, University of British Columbia Cardiac arrhythmias such as ventricular tachycardia (VT) and fibrillation (VF) can be fatal if left untreated. In two dimensions, these reentrant arrhythmias can be modeled as one or more spiral waves in a system of excitable media. The appearance of spiral waves due to structural inhomogeneities – such as damaged tissue or scar tissue is well-studied and well-explained. However, patients can present with VT yet have no permanent cardiac inhomogeneities. How can an arrhythmia arise in a patient with no apparent structural defects? A potential mechanism is the appearance of a temporarily ’deactivated’ region. I will discuss the basic biology of the heartbeat, present the mathematical systems that are used to model it, and show how an arrhythmia can appear in an undamaged heart. 1
