目的 基于随机森林方法构建甲状腺功能减退（简称甲减）患病风险预测模型。方法 从MIMIC-IV数据库纳入5 735名甲减患者为病例组,4 803名非甲减患者为对照组,基于随机森林模型进行建模。同时利用逻辑回归、贝叶斯正则化神经网络、XGBoost作为比较模型。最后用准确率、F1分数、精确率、召回率、特异性以及AUC值评价四个机器学习模型性能。结果 随机森林模型准确率为0.85,F1分数为0.84,精确率为0.84,召回率为0.84,特异性为0.86,AUC值为0.91。在该模型中,促甲状腺激素、年龄、绝对淋巴细胞计数、血液中红细胞数、中性白细胞、性别、碱性磷酸酶、丙氨酸氨基转移酶、嗜酸性粒细胞绝对计数、尿素氮为甲减患者诊断重要性排前10的指标。结论 采用随机森林方法构建的甲减患病预测模型为甲减的早期诊断有潜在应用价值。

Objective To construct a risk prediction model for hypothyroidism based on the random forest model．Methods A total of 5 735 hypothyroidism patients were included from the MIMIC-IV database as the case group, and 4 803 non-hypothyroidism patients were included as the control group．Random forest models were constructed for both groups, and logistic regression, Bayesian regularized neural network, and XGBoost were used as comparative models．The performance of the four machine learning models was evaluated using accuracy, F1 score, precision, recall, specificity, and AUC value．Results The random forest model had an accuracy of 0.85, an F1 score of 0.84, a precision of 0.84, a recall of 0.84, a specificity of 0.86, and an AUC value of 0.91．In this model, thyroid-stimulating hormone, age, absolute lymphocyte count, red blood cell count in blood, neutrophil, gender, alkaline phosphatase, aspartate aminotransferase, absolute eosinophil count, and blood urea nitrogen were the top 10 indicators for diagnosing hypothyroidism patients．Conclusions The hypothyroidism disease prediction model constructed using the random forest method has potential application value for the early diagnosis of hypothyroidism．

目的 探讨影响先天性甲状腺功能减低症患儿不同转归的早期因素。 方法 选取2013年12月—2017年3月期间在本中心筛查并确诊的先天性甲状腺功能减低症患儿共80例,经左旋甲状腺激素钠治疗2~3年后停药评估再随访1年以上者,根据疾病转归将患儿分为持续性甲低组(29例)与暂时性甲低组(51例)。对2组患儿的临床情况进行回顾性分析,寻求影响结局的早期因素。结果 持续性甲低与暂时性甲低患儿初筛促甲状腺激素值[ 63.89 (43.89, 114.25) vs 38.54 (27.27, 60.00) mIU/L]、促甲状腺激素恢复正常所需剂量[(4.29±1.46) vs (3.38±1.34) μg/(kg·d)]、早期甲状腺超声正常比例[58.6%(17/29)vs 90.2%(46/51)]差异有统计学意义(P<0.05)。其中初筛促甲状腺激素值(最佳临界值:37.825 mIU/L,AUC=0.745,灵敏度0.897,特异度0.490)和出生后第8个月左旋甲状腺激素钠给药剂量[最佳临界值3.38 μg/(kg·d),AUC=0.759,灵敏度 0.586,特异度 0.843]可早期区别持续性甲低与暂时性甲低患儿。结论 初筛促甲状腺激素值和出生后左旋甲状腺激素钠给药剂量对先天性甲状腺功能减低症患儿临床转归有早期预测作用。

Objective To investigate the early factors affecting different outcomes of children with congenital hypothyroidism (CH). Methods A total of 80 children with CH screened and diagnosed at Meizhou Maternal and Child Health Care and Family Planning Service Center between December 2013 and March 2017, who were treated with levothyroxine sodium for 2~3 years and then discontinued for assessment and followed up for over 1 year, were selected and divided into the permanent CH group (29 cases) and transient CH group (51 cases) according to disease outcomes. The clinical conditions of the children were retrospectively analysed to seek early factors affecting outcome. Results The initial screening thyroid hormone values [ 63.89 (43.89, 114.25) vs 38.54 (27.27, 60.00) mIU/L ], the required dose to restore normal thyroid hormone in permanent and transient CH group [(4.29±1.46) vs (3.38±1.34) μg/(kg·d)], and the proportion of early normal thyroid ultrasound [58.6% (17/29) vs 90.2% (46/51)] had significant differences(P<0.05). The initial screening thyroid hormone value (optimal threshold: 37.825 mIU/L, AUC=0.745, sensitivity 0.897 and specificity 0.490) and the levothyroxine sodium dosage at eighth month of age [optimal threshold 3.38 μg/(kg·d), AUC=0.759, sensitivity 0.586 and specificity 0.843] could early distinguish permanent and transient CH children. Conclusions Initial screening thyroid hormone values and postnatal levothyroxine sodium dosage had an early predictive effect on clinical outcome in children with CH.

目的 探讨甲状腺乳头状癌患者在严重短期甲减的状态下甲状腺功能及相关因素对血脂水平的影响。方法 纳入61例通过病理确诊为甲状腺乳头状癌的患者,采集所有患者在手术前与碘治疗前的甲状腺功能水平与血脂水平等资料,比较患者不同性别、年龄、术式、淋巴结转移情况等相关因素对血脂的影响。结果 碘治疗前的全部血脂指标均高于手术前的基线水平;在促甲状腺激素 (TSH)>60 mIU/L组中的总胆固醇(TC)、低密度脂蛋白胆固醇(LDL-C)、载脂蛋白A1(APO-A1)、载脂蛋白B(APO-B)、脂蛋白(LP)水平明显高于TSH≤60 mIU/L组;女性患者的甘油三酯(TG)、动脉硬化指数(AI)水平明显低于男性患者,男性组的HDL-C、APO-A1水平低于女性组,年龄>45岁的患者TC水平高于年龄≤45岁的患者,差异均有统计学意义(P均＜0.05);不同术式及淋巴结转移分组间的血脂水平未见明显差异(P＞0.05);TC水平与游离三碘甲状原氨酸(FT3)、游离甲状腺素(FT4)、甲状腺素(T4)水平呈负相关(r分别为-0.342、-0.370、-0.340),HDL-C、LDL-C及APO-B水平与T4水平呈负相关(r分别为-0.294、-0.354、-0.324),APO-A1水平与FT4、三碘甲状腺原氨酸(T3)、T4水平呈负相关(r分别为-0.306、-0.262、-0.263),LPa水平与T3、T4水平呈负相关(r分别为-0.268、-0.313)。结论 甲状腺乳头状癌碘治疗前短期甲减可以导致全套血脂指标升高,在此甲减状态下程度越严重的甲减可产生越高的血脂水平,同时男性患者与中老年患者也可伴随更高的血脂水平。

Objectives To investigate the influence of thyroid function and related factors on blood lipid levels in patients with papillary thyroid cancer under short-term severe hypothyroidism. Methods Sixty-one patients with papillary thyroid carcinoma diagnosed by pathology were included. The data of thyroid function and blood lipid levels of all patients before operation and iodine treatment were collected. The effects of gender, age, operation mode, lymph node metastasis and other related factors on blood lipid were compared. Results Before iodine treatment, all blood lipid indexes were higher than the baseline level before operation. The levels of total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), apolipoprotein A1 (APO-A1), apolipoprotein B (APO-B), lipoproteins (LP) in the thyroid stimulating hormone (TSH)>60 mIU/L group were significantly higher than those in the TSH≤60 mIU/L group.Triglyceride (TG) and arteriosclerosis index (AI) levels were significantly lower in female patients compared with male patients, HDL-C and APO-A1 levels were lower in male patients compared with female patients, and TC levels were higher in patients aged>45 compared with those aged≤45, with significant differences (all P<0.05). No significant differences were observed in lipid levels among the different surgical procedures and lymph node metastasis subgroups (P>0.05). TC levels were negatively correlated with free triiodothyronines (FT3), free thyroxine (FT4), thyroxine (T4) levels (r=-0.342,-0.370,-0.340,respectively). HDL-C, LDL-C, and APO-B levels were negatively correlated with T4 levels (r=-0.294, -0.354, -0.324,respectively), APO-A1 levels were negatively correlated with FT4, triiodothyronine (T3), T4 levels (r=-0.306,-0.262,-0.263,respectively), and LP levels were negatively correlated with T3 and T4 levels (r=-0.268,-0.313, respectively). Conclusions Short term hypothyroidism before iodine treatment for papillary thyroid cancer could lead to the increase of full set of blood lipid indexes, male patients and middle-aged and elderly patients could also be accompanied by higher blood lipid levels.

目的 比较细胞因子TGF-β、IL-10、TNF-α、Th17在不同妊娠结局的妊娠期亚临床甲减孕妇血清中的差异,探索细胞因子在不同妊娠结局中的作用。方法 随机选择2018年1月—2018年12月在我院就诊的66例确诊为因妊娠期亚临床甲减而出现不良妊娠结局的孕妇与同期妊娠结局正常的66例孕妇进行病例对照研究,比较不同妊娠结局孕妇的血清TGF-β、IL-10、TNF-α、Th17的差异;结果 ① 亚临床甲减组的TPOAb、TgAb、TRAb阳性率高于正常妊娠组,同时TNF-α、Th17均高于正常妊娠组,而TGF-β、IL-10均低于正常妊娠组,差异有统计学意义(P<0.05)。② 因子分析发现:在TPOAb、TgAb、TRAb、TGF-β、IL-10、TNF-α、Th17七个影响妊娠期亚临床甲减不良妊娠结局的相关因素中,TGF-β、IL-10、TNF-α、Th17在第1影响因子,特征值达2.347;TPOAb、TgAb、TRAb是次要影响因子,特征值为1.162。结论 TGF-β、IL-10、TNF-α、Th17与妊娠期亚临床甲状腺功能减退症的不良妊娠结局有密切关系,TGF-β、IL-10、TNF-α、Th17是影响妊娠期亚临床甲减不良妊娠结局的主要因子;TPOAb、TgAb、TRAb是影响妊娠期亚临床甲减不良妊娠结局的次要因子。

Objective To compare the serum levels of TGF-β, IL-10, TNF-α and Th17 in pregnant women with subclinical hypothyroidism in different pregnancy outcomes. Methods A case-control study was conducted in 66 pregnant women with adverse pregnancy outcomes due to subclinical hypothyroidism during pregnancy and 66 pregnant women with normal pregnancy outcomes during the same period. The differences of serum TGF-β, IL-10, TNF-α and Th17 among pregnant women with different pregnancy outcomes were compared. Results ①The positive rates of TPOAb, TgAb and TRAb in subclinical hypothyroidism group were higher than those in normal pregnancy group, and TNF-α and Th17 were higher than those in normal pregnancy group, while TGF-βand IL-10 were lower than those in normal pregnancy group (P<0.05). ②Factor analysis found that TPOAb, TgAb, TRAb, TGF-β, IL-10, TNF-α and Th17 were the factors related to adverse pregnancy outcomes of subclinical hypothyroidism in pregnancy. TGF-β, IL-10, TNF-α and Th17 were the main influencing factors with a characteristic value of 2.347; TPOAb, TgAb and TRAb were the second influencing factors,with a characteristic value of 1.162. Conclusion ①TGF-β, IL-10, TNF-α, Th17 are closely related to the occurrence and pregnancy outcome of subclinical hypothyroidism in pregnancy. ②TGF-β, IL-10, TNF-α and Th17 are the main factors affecting the adverse pregnancy outcomes of subclinical hypothyroidism in pregnancy;TPOAb, TgAb and TRAb are the secondary factors affecting the adverse pregnancy outcomes of subclinical hypothyroidism in pregnancy,

目的 探讨新生儿高促甲状腺素血症转归与先天性甲状腺功能减低的相关性。方法 选择2014年4月—2015年4月在本院新生儿疾病筛查中心筛查并诊断为高促甲状腺激素血症的患儿120例,期间密切监测甲状腺功能指标变化。结果 将非治疗组所有患儿按照入组该实验后首次抽取静脉血TSH检测水平分为3组:5.5~10.0 mU/L(20例)、10.1~15.0 mU/L(10例)、＞15.0 mU/L (8例)。非治疗组患儿第2次随访结果显示5.5~10.0 mU/L组所有患儿TSH水平<10.0 mU/L;10.1~15.0 mU/L组有1例患儿TSH水平＞10.0 mU/L,FT4水平在正常值上限;＞15.0 mU/L组有3例患儿 TSH水平＞10.0 mU/L,差异有统计学意义(P< 0.05),FT4水平在正常均值左右,差异没有统计学意义(P＞ 0.05),＞15.0 mU/L组3例患儿给予左旋甲状素钠治疗。治疗组有2例患儿分别在治疗15天和23天后出现医源性甲状腺功能亢进,停药和酌减药量后TSH、FT4水平均恢复正常。两组患者随访结束后TSH、TF4均恢复至正常水平。结论 大多数新生儿高促甲状腺素血症会随着年龄的增长恢复正常,而仅仅有少部分患儿会持续出现甲状腺功能异常,应积极随访;新生儿只有当TSH 基础值＞15.00 mU/L时才需要采用左旋甲状素钠替代治疗,并且严格随访甲状腺功能,避免过度治疗。