30 patients, aged ≥ 60 were received patient controlled epidural analgesia after upper abdominal surgery. Pain was evaluated by Visual Analogue Scale (VAS). Arterial blood gas, SVC, FEV 1 were evaluated before and during three days after surgery. When VAS score ≥ 4, patients were received an initial dose, with patient controlled epidural analgesia device set at bolus 1.5 ml and background infution 2 ml/hour and lockout interval 10 minutes. Results: after one hour, 90% of patients were excelent analgesia at rest (VAS medium score < 2.5) and 96.67% of patients had VAS score < 4 during coughing; Postoperative values of SVC, FEV 1 were reduced as compared to preoperative values in the observation times (p < 0.05); Undesirable side effects were rare and mild. None of patients had respiratory depression or respiratory failure Download Link: eBook có trong tuyển tập DVD Y Học http://hocvienquany.vn/Tapchi/Data/TapTin/2012_2_24_NguyenTrungKien.pdfhttps://www.mediafire.com/?hntqghhkmizgiq