英语语法分析

Parathyroidectomy is the best approach for patients with PHPT.

手术切除是最佳的治疗方式。

Methods:PTH levels were measured in 97 patients 6 months after parathyroidectomy.

方法：对甲状旁腺手术后6个月的97例患者，监测甲状旁腺激素；

Objective to search for the significance of endoscopic thyroidectomy and parathyroidectomy.

目的探讨开展内镜下甲状腺、甲状旁腺切除手术的意义。