The Wolff-Parkinson-White-syndrome. A rare ECG diagnosis in the dog.

A case of the rare heart disease Wolf-Parkinson-White-syndrome in the dog is described. ECG-findings typical of the syndrome are shortened P-R interval, widened QRS-complex with an initial delta-wave, and supraventricular tachycardia. Pre- (Fig. 1) and post-treatment (Fig. 2) ECG's are analyzed. Different kinds of treatment are discussed.