继发性甲状旁腺功能亢进患者甲状旁腺切除术后重度低钙血症相关因素分析

目的：探讨继发性甲状旁腺功能亢进（SHPT）患者甲状旁腺切除术后重度低钙血症（SHC）相关因素,进而建立SHC防治策略。方法回顾性分析2012年3月—2014年5月在我院行甲状旁腺切除治疗的S H P T病例资料。行单因素及多因素分析明确S HC的独立影响因素,确定定量因素界值。结果共收集88例病例资料,术后发生S HC46例（52.3％）。单因素分析显示年龄、ALP、iPTH、切除的甲状旁腺数（RTPN）具有统计学显著差异,多因素分析显示年龄、iPTH、RTPN≥4为SHC的独立影响因素,确定的界值为年龄48岁（PPV68.8％,NPV67.5％）和iPT H 1750 pg／ml（PPV85.4％,NPV87.5％）。结论年龄、甲状旁腺激素水平、甲状旁腺切除数量为SHPT患者甲状旁腺切除术后SHC的独立影响因素。选择性地对高危患者实施静脉补钙,选择合理的手术方式,可作为防治S HC的初步策略。     

Efficacy and its predictor in microwave ablation for severe secondary hyperparathyroidism in patients undergoing haemodialysis

Background: Microwave ablation (MWA) can be used to treat severe secondary hyperparathyroidism; however, its efficacy and the predictor of its efficacy are unclear. In this retrospective study we determined the predictor of efficacy of MWA and compared the efficacy of MWA and parathyroidectomy.

Materials and methods: Patients with severe secondary hyperparathyroidism who had received MWA or parathyroidectomy were enrolled in the study. Participants with MWA were divided into response and no response groups based on efficacy. Possible predictors were analysed using logistic regression to determine efficacy predictors. The participants were divided into MWA and parathyroidectomy groups, and the efficacy (including rates of achieving recommended goals for intact parathyroid hormone (iPTH), calcium, and phosphorus levels) were compared between the two groups.

Results: Thirty-one participants were enrolled for predictor analysis. Only baseline iPTH level predicted efficacy (OR 0.997, P?=?0.018). The optimal threshold value of iPTH for predicting efficacy was 1493.5?pg/mL. To compare efficacy, 30 patients were enrolled in MWA (18/30) and parathyroidectomy (12/30) groups. The rates of achieving recommended goals for iPTH levels varied between 0 and 60%; a significant difference was found between the groups at 5 months (P?=?0.01). However, in the parathyroidectomy group, the iPTH level and rate of iPTH <124?pg/mL (lower limit of target range) were significantly lower than in the MWA group after treatment (40–75% versus 0–16.7%).

Conclusion: Baseline iPTH level is a good predictor of MWA efficacy for severe secondary hyperparathyroidism; parathyroidectomy is more effective for severe secondary hyperparathyroidism than MWA.     

Three-dimensional ultrasonography before minimally invasive focused parathyroidectomy: The importance of coronal images

Purpose  To evaluate the usefulness of three-dimensional (3D) ultrasonography (US) as a noninvasive preoperative localization procedure before performing minimally invasive focused parathyroidectomy in patients with primary hyperparathyroidism (pHPT). Methods  Seventy-six patients with a solitary adenoma detected by US underwent minimally invasive focused parathyroidectomy. The value of 3D US was assessed by dividing patients into a 2D group and a 3D group. Age, the preoperative serum intact parathyroid hormone (PTH) level, operative time, length of skin incision, and weight of the resected specimen were compared between the groups, and multivariate analysis of the operative time was performed. Results  There were no significant differences between the 2D group and the 3D group in age, the preoperative intact PTH level, length of skin incision, or weight of the resected specimen, but the mean operative time was significantly longer in the 2D group (P < 0.01). Multivariate analysis revealed that 3D US and the weight of the resected specimen were correlated with the operative time (P < 0.05). Conclusion  The coronal images obtained by 3D US assist in the precise localization of parathyroid masses in patients with pHPT undergoing minimally invasive focused parathyroidectomy for a solitary adenoma.