Results Forty-seven patients underwent radical resection, presacral venoushemorrhage during surgery of 1 case, postoperative anastomotic leakage of 2 cases, and all of them were cured.
结果47例患者均行根治性切除术，术中骶前静脉破裂岀血1例，术后吻合口漏2例，均治愈。
2
The hemorrhage rate of venous drainage unobstructed was lower.
引流静脉通畅者其出血率低。
3
Decompression was evaluated by comparison of pre-and post-operative portal venous pressure (PVP), spleen size, portal venous velocity and postoperative hemorrhage.