Document Classification

Section Type: RESULTS

Text: The average operative time was (105. 1 + / - 30. 2) min in endoscopic group and (145. 3 + / - 27. 4) min in open group (P < 0. 01) ; the mean operative blood loss was (7. 5 + / - 4. 2) ml in endoscopic group and (48. 6 + / - 18. 6) ml in open group (P < 0. 01) ; the average hospitalization after operation was (4. 1 + / - 1. 4) days and (8. 0 + / - 1. 9) days (P < 0. 01), the complication rate was 5. 8 % in endoscopic group and 8. 8 % in open group (P < 0. 01).