[The cognitive functioning of patients with heart disease treated cardiosurgically--assessment before and after surgery. Preliminary study].

Background: The coronary artery bypass graft surgery (CABG) serves the improvement of blood supply of the heart muscle. Better blood supply augurs the improvement of cognitive functioning in surgically operated persons. The patients who have undergone these kind of operations, in fact are endangered with unfavourable working factors, connected with different techniques of intervention.

Cardiac arrest in the early stage of cardiosurgical procedure.

Cardiosurgical operations remain one of the most demanding and complicated surgical procedures. Cardiac arrest before extra corporeal circulation (ECC) is one of severe intraoperative complications which can occur in any moment of operation. We have tried to evaluate possible risk factors of intraoperative, pre-ECC cardiac arrest in cardiac surgical patients and also have tried to estimate, if such an incident itself can be a risk factor for further post-operative complications.