© 2000 by European Society of Cardiology
Copyright © 2000, European Society of Cardiology
Familial hypertrophic cardiomyopathy: cornering the rat
aLankenau Hospital and Institute for Medical Research, Main Line Health, Wynnewood, PA, USA
bJefferson Medical College, Philadelphia, PA, USA
* Corresponding author. Tel.: +1-610-649-6980; fax: +1-610-649-6990 prkowey@pol.net
Received 19 May 2000; accepted 19 May 2000
| The first 10% of the full text of this article appears below. |
See article by Frey et al. [8] (pages 254–264) in this issue.
Hypertrophic cardiomyopathy is a terrible disease [1]. It is associated with negative hemodynamic changes leading to pulmonary congestion and low output, and with severe ventricular arrhythmias that in many cases are lethal. We have learned a good deal about the electrophysiology of this disease [2]. Unlike ischemic heart disease that predisposes to conduction block and reentrant arrhythmias on that basis, the lesion of hypertrophy involves repolarization [3]. Hypertrophied cells have long and non-uniform repolarization times. This dispersion of action potential duration is a milieu in which early afterdepolarizations can generate sustained and highly disorganized ventricular arrhythmias, manifest on the