Peripheral tissue oxygenation during standard CPB and miniaturized CPB (direct oxymetric tissue perfusion monitoring study).

Aim: The aim of this study was to compare the impact of standard cardiopulmonary bypass (CPB) with mini CPB on peripheral tissue perfusion.

Methods: 24 patients with ischemic heart disease scheduled for CPB were randomised to two groups: Group A (12 patients, standard CPB) and Group B (12 patients, mini CPB). Oxygen tension was measured with an optical multiparametric sensor inserted into the patient's deltoid muscle.

Direct oxymetric peripheral tissue perfusion monitoring during open heart surgery with the use of cardiopulmonary bypass: preliminary experience.

Background: Regional hypoperfusion has been associated with the development of postoperative organ dysfunction in cardiac surgery involving cardiopulmonary bypass (CPB). Direct tissue oxymetry is a potentially new method for monitoring the quality of the peripheral tissue perfusion during CPB. The aim of this study was to assess the effects of CPB in skeletal muscle oxygenation when measured in the deltoid muscle by direct oxymetry during perioperative period.

No clear clinical benefit of using mini-invasive extracorporeal circulation in coronary artery bypass grafting in low-risk patients.

Background: Current research is engaged in innovative technologies of extracorporeal circulation (ECC) systems in an effort to eliminate negative effects. Some studies have shown that, due to the complexity of technical settings of mini-ECC, they invoke a weaker immune response compared to classic ECC. The clinical benefits of using these systems have not been clearly proven yet.

[The effect of preoperative administration of heparin on the heparin resistance development].

Background: Heparin resistance is relatively frequent problem in cardio surgery. We were try to determine real occurrence heparin resistance before operation.

Aim Of The Study: Purpose of the project--to find the real frequency of heparin resistance in patients who will undergo a cardio surgical operation.

[Results of open valvotomy in congenital stenosis of the aortic valve].

Between 1977 and 1992 at the Cardiosurgical Clinic of the Faculty Hospital in Hradec Králové on account of congenital valvular aortic stenosis 142 patients were subjected to catheterization. Valvotomy of a stenotic aortic valve was performed in 69 patients. The submitted paper evaluates the progression of aortic stenosis based on investigations of the aortic gradient and the area of the aortic orifice in repeatedly catheterized patients before and after valvotomy and evaluates also the results of surgery after a 1-15-year interval after surgery.