Results Forty-seven patients underwent radical resection, presacral venous hemorrhage 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。
The hemorrhage rate of venous drainage unobstructed was lower.
引流静脉通畅者其出血率低。
Decompression was evaluated by comparison of pre-and post-operative portal venous pressure (PVP), spleen size, portal venous velocity and postoperative hemorrhage.
对比术前、术后门静脉压力(pvp)、脾脏斜径、门静脉(PV)血流速以及术后有无再次出血，评估降门脉压力效果。
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