[T-wave changes in intermittent XXXX . Pathogenesis and clinical significance].

@entity1 @entity63 @entity714 @entity854 @entity158 @entity299
In @entity1 with intermittent @entity714 ( @entity714 ) it is common to observe @entity854 in the right precordial leads during normally conducted beats. These changes have usually been interpreted as a result of anteroseptal @entity63 . More recently it has been suggested that they may be the consequence of an electric phenomena secondary to the abnormal ventricular activation. However, the "benign" character of these abnormalities has never been confirmed by clinical studies. We have studied a group of 10 pts (3 males and 7 females), aging between 23 and 66 years (mean 41 +/- 8) with atypical @entity158 admitted to our institution, because of intermittent @entity714 and T wave inversion in the right precordial leads during the normally conducted beats. All @entity1 had normal left ventriculography and coronary angiograms. During the follow-up period (20 to 102 months, mean 4.7 years) they were subjected to serial clinical examinations, 24 hours ECG Holter monitoring echocardiogram and exercise thallium 201 scintigraphy. Within this period of observation, no @entity1 developed symptoms or signs of @entity299 while all but three developed a stable @entity714 (these three @entity1 have been followed only for a limited period of time). Exercise thallium 201 scintigraphy showed in 4 @entity1 a reversible septal perfusion defect during @entity714 . We conclude that @entity854 observed in the normally conducted beats in @entity1 affected by intermittent @entity714 have a favourable prognostic significance.(ABSTRACT TRUNCATED AT 250 WORDS)
