5Kessler P,Aybek T,Neidhort G,et al.Comparison of three anesthetic techniques for off-pump coronary artery bypass grafting:generel anesthesia,combined general and high thoracic epidural anesthesia,or high thoracic epidural anesthesia alone[J].J Cardiothorac Vasc Anesth,2005,19(1):32-39.
6Lagunilla J,García-Bengochea JB,Fernández AL,et al.High thoracic epidurel blockade increases myocardial oxygen availability in coronary surgery patients[J].Acta Anaesthesiol Scand,2006,50(7):780-786.
