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目的 探讨Labbe静脉的解剖变异与术中保护。方法 总结近三年来采用扩大的经岩骨联合入路时,20例患者Labbe静脉的走向分布,术中处理经验。结果 将Labbe静脉分为四种类型。Ⅰ型:从大脑外侧裂方向发出,斜向后与大脑下静脉吻合形成Labbe静脉,汇入横窦,共11例。Ⅱ型:Labbe静脉分布、走向同Ⅰ型,但进入小脑幕硬膜间的静脉湖后汇入横窦,共2例。Ⅲ型:在颞后部多个静脉引流分别单独汇入静脉窦,共5例。Ⅳ型:起于外侧裂后方与大脑下静脉吻合而成,静脉管径细小、发育不良,经枕后汇入横窦,共2例。5例患者Labbe静脉术中损伤,术后CT检查,2例发生颞叶脑内血肿及梗塞。结论 Labbe静脉解剖变异较大,应据分型采用不同的处理保护方法。
Objective To investigate the anatomic variation and intraoperative protection of Labbe’s vein. Methods To summarize the distribution of Labbe’s veins in 20 patients and the experience of intraoperative treatment when using the enlarged petrosalion combined approach in recent three years. Results The Labbe veins were divided into four types. Type I: issued from the lateral fissure direction of the brain, oblique and posterior cerebral vein anastomosis to form Labbe vein, into the transverse sinus, a total of 11 cases. Type II: Labbe vein distribution, to the same type, but into the vestibule after the dural venous access to the transverse sinus, a total of 2 cases. Type Ⅲ: In the temporal rear multiple venous drainage were separately imported into the sinus, a total of 5 cases. Type Ⅳ: From the lateral fissure and the inferior vena cava anastomosis, small diameter of the vein, poorly developed, after transcranial reentrant sinus, a total of 2 cases. Five patients were injured in the vein of Labbe, postoperative CT examination, and 2 cases of temporal lobe intracerebral hematoma and infarction. Conclusion Labbe vein anatomical variation, should be based on the type of treatment with different protection methods.