There were 46 cases in the B group, the injection points included vein of forehead, superficial temporal vein and the posterior auricular vein.

组46例次，穿刺点为头皮静脉如额正中静脉、颞浅静脉、耳后静脉等；

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All of the patients underwent minimally invasive parotidectomy with preserving or sacrificing the posterior branch of the great auricular nerve.

目的评价微创腮腺手术中耳大神经后支保留的可行性、方法及临床价值。

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All of the patients underwent minimally invasive parotidectomy with preserving or sacrificing the posterior branch of the great auricular nerve.

目的评价微创腮腺手术中耳大神经后支保留的可行性、方法及临床价值。

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