| 摘要 |
A method for intraoperative lung protection in the surgical treatment of the infectious endocarditis comprises the artificial lung ventilation and artificial blood circulation. Prior to cardioplegic heart arrest, the cannula connected with the lateral branching of the arterial line of the artificial circulation circuit is inserted into the pulmonary artery. After the clamping of aorta, cardioplegia and removal of the infected valve, the trunk of the pulmonary artery is clamped. Then the lateral branching of the arterial line is opened for perfusion of the pulmonary artery with the arterial blood. Upon the completion of the surgical correction (prosthesis replacement or reconstruction of the valves), at the stage of sealing the heart cavities, the perfusion of the pulmonary artery is finished. While the surgical manipulations in the area of the posterior mitral leaflet are performed, the blood supply to the pulmonary artery is interrupted periodically because of the increased blood return from the pulmonary veins and the deteriorated visualization of the operative field. |
