[Congestive cardiomyopathies originating from arrhythmia].
Arrhythmia-induced cardiomyopathy is partially or totally reversible left ventricular dysfunction after normalisation of the tachycardia or arrhythmia. On the one hand, there are pure forms in which the arrhythmia occurs in apparently normal hearts and, on the other hand, the more common form in which there is minimal underlying cardiac disease associated with the arrhythmia. Total or partial recovery after reduction of the arrhythmia or "ablation" of its substrate remains a key feature of the diagnosis. Many experimental studies of the functional and structural myocardial and neurohormonal effects of prolonged tachycardias or tachyarrhythmias have provided insight into the modes of occurrence and the characteristics of this type of "reversible" left ventricular dysfunction. But, in fact, there is a lack of anatomical, clinical and follow-up data of this syndrome, the diagnosis of which is always difficult and essentially retrospective after recovery of left ventricular function.
Bounhoure
J P
JP
Service cardiologie, hôpital de Rangueil, Toulouse.
Boveda
S
S
Galinier
M
M
D001145:Arrhythmias, Cardiac / Q000150:complications*; D002311:Cardiomyopathy, Dilated / Q000209:etiology*; D017115:Catheter Ablation; D006333:Heart Failure / Q000209:etiology*; D006801:Humans; D013610:Tachycardia / Q000150:complications; D018487:Ventricular Dysfunction, Left / Q000150:complications* / Q000601:surgery