摘要
目的分析非体外循环冠状动脉旁路移植术(off-pum p coronary artery bypass grafting,OPCAB)中血流动力学的变化特点。方法连续100例冠心病患者接受OPCAB,术中对各病变血管进行旁路移植血管吻合时的血流动力学指标进行监测。全组完成左乳内动脉(L IM A)与左前降支(LAD)吻合97例,大隐静脉或桡动脉与右冠状动脉(RCA)主干、后降支(PDA)、左心室后支(PLB)吻合84例,左回旋支(LCX)吻合50例,钝缘支(OM)吻合27例,对角支(DG)吻合25例。每例患者移植血管支数为3.1±0.7支。结果吻合LAD、DG时除心率(HR)较基础值增快,平均动脉压(M AP)和左心室每搏做功指数(LV SW I)较基础值降低外(P<0.05),其它指标无明显变化。吻合LCX、PDA、PLB和OM时血流动力学指标有明显的变化,HR、中心静脉压(CVP)较基础值明显升高(P<0.05),M AP、心脏指数(C I)、每搏指数(S I)、右心室射血分数(RVEF)、右心室舒张期末容积(RVEDV)、LV SW I、右心室每搏做功指数(RV SW I)较基础值明显降低或减少(P<0.05)。术毕各指标均趋于正常,C I有明显的改善。结论OPCAB中吻合LAD和DG时对血流动力学影响较小,而吻合LCX、PDA、PLB和OM时对血流动力学有明显的影响,术毕各血流动力学指标趋于正常,心脏功能有明显的改善。
Objective To analyse the characteristic of hemodynamic changes during off-pump coronary artery bypass grafting （OPCAB）. Methods One hundred consecutive patients received OPCAB and the hemodynamic changes were monitored during the grafts was anastomosed. They were anastomosis of the left internal mammary artery （LIMA） to left anterior descending （LAD） in 97 patients, the anastomosis of saphenous vein （SV） or radial artery（RA） to right coronary artery （RCA） including posterior descending artery （PDA） and posterior left branch （PLB） in 84 patients, to left circumflex coronary artery （LCX） in 50 patients, to optuse marginal artery（OM） in 27 patients, to diagonal artery （DG） in 25 patients. The grafts number in each patient was 3. 1±0. 7. Results Hemodynamics changed when LAD and DG were anastomosed with significantly increase of heart rate （HR）, significantly decrease of mean arterial pressure （MAP） and left ventricular stroke work index （LVSWI, P〈0.05）. Hemodynamics changed when LCX,PDA,PLB,OM were anastomosed with significantly increase of HR and center veinous pressure （CVP, P 〈 0. 05）, significantly decrease of MAP, cardiac index （CI）, stroke index （SI）, right ventricular ejection fraction （RVEF）, right ventricular end-diastolic volume （RVEDV）, LVSWI and right ventricular stroke work index （RVSWI,P〈0.05）. Hemodynamics tended to be stable and CI improved at the end of operation. Conclusion There are no or little hemodynamic changes during the LAD and DG were anastomosed in OPCAB, while hemodynamics changed significantly during LCX, PDA, PLB and OM were anastomosed. Hemodynamics become stable and CI improves after operation.
出处
《中国胸心血管外科临床杂志》
CAS
2006年第3期151-154,共4页
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery
