Relation between postoperative mortality and atrial fibrillation before surgical revascularization--3-year follow-up.

Background: Preoperative atrial fibrillation is one of the predictors of increased morbidity and mortality in patients undergoing surgical revascularization, and consequently, prolongs the duration of stay in the ICU and of overall hospitalization.

Methods: The study included 3000 patients subjected to primary isolated coronary artery bypass grafting from 2000 to 2004. Of the 3000 patients, 5.

Preoperative predictors of delirium after cardiac surgery: a preliminary study.

Preoperative risk factors of postoperative delirium were evaluated in 260 patients admitted for open heart surgery. The incidence of delirium was 11.5%.

L-arginine improves hemodynamic function and coronary flow in an experimental model of ischemia-reperfusion injury.

Background: Ischemia and reperfusion injury decrease the release of nitric oxide by vessels endothelial cells, which influences postischaemic coronary flow and return of left ventricle haemodynamic function. The study was conducted to answer the question how addition of L-arginine in cardioplegic and reperfusion fluids influences nitric oxide release, inducing the coronary flow and postischaemic haemodynamic heart function.

Materials And Methods: The research was conducted on 56 rats, divided randomly into seven groups: control (C) and six experimental groups (E), where L-arginine was administrated in increasing doses of 0.

[Aortic valve replacement in patients with heart failure].

Unlabelled: Severe aortic regurgitation and stenosis are urgent indication for aortic valve replacement in patients with left ventricular dysfunction, however the effect of cardiac surgery may differ in both groups. The aim of the study was to evaluate the early changes of haemodynamic parameters of heart: ejection fraction, endsystolic and enddiastolic left ventricle diameters, endsystolic and enddiastolic left ventricular wall thickness and left atrium diameter, depending on ejection fraction value (EF), in patients undergoing aortic valve replacement due to isolated aortic stenosis or regurgitation.

Materials And Methods: 250 patients engaged to the study were subjected to the mechanical aortic valve replacement in Cardiac Surgery Department in Lodz.

[Evaluation of surgical treatment of mitral valve defect in patients with chronic renal failure].

Unlabelled: Renal failure of patients qualified for open-heart surgical treatment seems to be very important problem since years. The operation with extracorporeal circulation is large burden for kidneys and there is huge risk of intensifying of existing failure. The aim of the study was the evaluation of renal parameters, complications occurrence and mortality of patients with chronic renal failure (ChRF) (grade II--mild ChRF) subjected to mitral valve replacement.