The stress damage of heart depends on direct action of catekholamins. It causes “stress rigidity”. These affections develop especially intensively in hypertrophic myocard with accompanying arterial hypertension.
The changes of indexes of diastolic myocardial disfunction were the greatest for patients after pulmonectomy. It promoted the forming of mixed type of myocardial hyperfunction. The disturbance of filling process of right ventricle for patients after nephrectomy was marked less. However, the duration of postoperative diastolic disfunction was longer.