The use of vascular surgical materials and techniques can effectively control severe bleeding during operation.
用血管外科技术和材料处理术中大出血可能获得较好的止血效果。
Results:Amount of bleeding during operation was more in observation group than control group, with significant difference(P0.05).
结果：术中出血量，观察组多于对照组，两组比较差异有显著性（P0.05）。
This paper also introduces 8 measures to reduce bleeding during operation, so as to make the operation field clear, avoid residue and recurrence.
本文还提出了减少术中出血的8种措施，力求手术视野清晰，防止残留和复发。
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