A clinic application of preoperative ultrasound-guided bilateral continuous transversus abdominis plane block in abdominal surgery

Interventions: the laparoscope colon cancer surgery:Combined general anesthesia and Preoperative abdominal transverse plane block;the laparoscope colon cancer surgery:Combined general anesthesia and Preoperative epidural block block;gastric cancer surgery:Combined general anesthesia and preoperative abdominal transverse plane block;gastric cancer operation:Combined general anesthesia and preoperative epidual block;the laparoscope gastric cancer surgery:Combined general anesthesia and preoperative abdominal transverse plane block;the laparoscope gastric cancer surgery:Combined general anesthesia and Preoperative epidural block block Primary outcome(s): Intraoperative hemodynamics;VAS scores;The dosage of propofol and remifentanyl;Time of extracted the tube and add analgesic drug;Time before taking liquid meal;Time of pull the urine tube;Length of hospital stay after operation;Time before far;the postoperative hypotension Study Design: Randomized parallel controlled trial