| pubmed-article:3498271 | pubmed:abstractText | 76 patients after aortocoronary venous bypass operation, 34 patients with essential arterial hypertension at stage I or II (WHO) and chronic ischaemic heart disease, 96 patients with a chronic ischaemic heart disease of different degree of severity and 20 persons with healthy heart were examined concerning their behaviour of the R-amplitude in the exercise electrocardiogram. In all patients a standardized bicycle-ergometric exercise sitting and a coronarography as well as a ventriculography were performed. There is no statistically significant difference in the behaviour of the R-amplitude between patients with chronic ischaemic heart disease and persons with healthy heart. Indeed, hypertensives with chronic ischaemic heart disease significantly differ in their behaviour of the R-amplitude from persons with healthy heart, in the hypertensives with chronic ischaemic heart disease, however, the behaviour of the R-amplitude is indifferent, so that it is concluded that the criterion of the R-amplitude for the diagnosis of the chronic ischaemic heart disease in hypertensives cannot be used. An insufficient individual reproducibility supports this conclusion. | lld:pubmed |
