妊娠合并甲状腺功能减退症或亚临床甲状腺功能减退症77例临床分析

Objective To investigate the maternal and fetal outcomes of pregnant women with hypothyroidism or subclinical hypothyroidism. Methods From Jan. 2005 to Mar. 2008, clinical records of 77 women with hypothyroidism (n=57) or subclinical hypothyroidism (n = 20) during pregnancy who delivered at Peking Union Medical College Hospital were reviewed. The basic information, maternal complications and neonatal outcomes of the patients were compared with 79 healthy women who delivered during the same period. Results The prevalence of maternal hypothyroidism during the study period was 0.74% ,and that of maternal subclinical hypothyroidism was 0.26%. The mean neonatal birth weight of women with hypothyroidism was lower than that of the control [(3191.8±659.47 g) vs (3301.9±423. 1 g), P<0.05], the incidence of abnormal glucose metabolism was higher (24.6% vs 11.4% ,P<0.05), and small for gestational age infants were more common than in the control group (12. 3% vs 2. 5%, P<0. 05). The maternal and fetal outcomes of women with subclinical hypothyroidism during pregnancy showed no difference compared with the control. Conclusions Early screening for the high risk women and appropriate management are important to improve the neonatal and fetal outcomes of women with hypothyroidism and subclinical hypothyroidism during pregnancy.     

妊娠合并甲状腺功能减退症或亚临床甲状腺功能减退症77例临床分析

Objective To investigate the maternal and fetal outcomes of pregnant women with hypothyroidism or subclinical hypothyroidism. Methods From Jan. 2005 to Mar. 2008, clinical records of 77 women with hypothyroidism (n=57) or subclinical hypothyroidism (n = 20) during pregnancy who delivered at Peking Union Medical College Hospital were reviewed. The basic information, maternal complications and neonatal outcomes of the patients were compared with 79 healthy women who delivered during the same period. Results The prevalence of maternal hypothyroidism during the study period was 0.74% ,and that of maternal subclinical hypothyroidism was 0.26%. The mean neonatal birth weight of women with hypothyroidism was lower than that of the control [(3191.8±659.47 g) vs (3301.9±423. 1 g), P<0.05], the incidence of abnormal glucose metabolism was higher (24.6% vs 11.4% ,P<0.05), and small for gestational age infants were more common than in the control group (12. 3% vs 2. 5%, P<0. 05). The maternal and fetal outcomes of women with subclinical hypothyroidism during pregnancy showed no difference compared with the control. Conclusions Early screening for the high risk women and appropriate management are important to improve the neonatal and fetal outcomes of women with hypothyroidism and subclinical hypothyroidism during pregnancy.     

妊娠合并甲状腺功能减退症或亚临床甲状腺功能减退症77例临床分析

Objective To investigate the maternal and fetal outcomes of pregnant women with hypothyroidism or subclinical hypothyroidism. Methods From Jan. 2005 to Mar. 2008, clinical records of 77 women with hypothyroidism (n=57) or subclinical hypothyroidism (n = 20) during pregnancy who delivered at Peking Union Medical College Hospital were reviewed. The basic information, maternal complications and neonatal outcomes of the patients were compared with 79 healthy women who delivered during the same period. Results The prevalence of maternal hypothyroidism during the study period was 0.74% ,and that of maternal subclinical hypothyroidism was 0.26%. The mean neonatal birth weight of women with hypothyroidism was lower than that of the control [(3191.8±659.47 g) vs (3301.9±423. 1 g), P<0.05], the incidence of abnormal glucose metabolism was higher (24.6% vs 11.4% ,P<0.05), and small for gestational age infants were more common than in the control group (12. 3% vs 2. 5%, P<0. 05). The maternal and fetal outcomes of women with subclinical hypothyroidism during pregnancy showed no difference compared with the control. Conclusions Early screening for the high risk women and appropriate management are important to improve the neonatal and fetal outcomes of women with hypothyroidism and subclinical hypothyroidism during pregnancy.     

妊娠合并甲状腺功能减退症或亚临床甲状腺功能减退症77例临床分析

Objective To investigate the maternal and fetal outcomes of pregnant women with hypothyroidism or subclinical hypothyroidism. Methods From Jan. 2005 to Mar. 2008, clinical records of 77 women with hypothyroidism (n=57) or subclinical hypothyroidism (n = 20) during pregnancy who delivered at Peking Union Medical College Hospital were reviewed. The basic information, maternal complications and neonatal outcomes of the patients were compared with 79 healthy women who delivered during the same period. Results The prevalence of maternal hypothyroidism during the study period was 0.74% ,and that of maternal subclinical hypothyroidism was 0.26%. The mean neonatal birth weight of women with hypothyroidism was lower than that of the control [(3191.8±659.47 g) vs (3301.9±423. 1 g), P<0.05], the incidence of abnormal glucose metabolism was higher (24.6% vs 11.4% ,P<0.05), and small for gestational age infants were more common than in the control group (12. 3% vs 2. 5%, P<0. 05). The maternal and fetal outcomes of women with subclinical hypothyroidism during pregnancy showed no difference compared with the control. Conclusions Early screening for the high risk women and appropriate management are important to improve the neonatal and fetal outcomes of women with hypothyroidism and subclinical hypothyroidism during pregnancy.     

妊娠合并甲状腺功能减退症或亚临床甲状腺功能减退症77例临床分析

Objective To investigate the maternal and fetal outcomes of pregnant women with hypothyroidism or subclinical hypothyroidism. Methods From Jan. 2005 to Mar. 2008, clinical records of 77 women with hypothyroidism (n=57) or subclinical hypothyroidism (n = 20) during pregnancy who delivered at Peking Union Medical College Hospital were reviewed. The basic information, maternal complications and neonatal outcomes of the patients were compared with 79 healthy women who delivered during the same period. Results The prevalence of maternal hypothyroidism during the study period was 0.74% ,and that of maternal subclinical hypothyroidism was 0.26%. The mean neonatal birth weight of women with hypothyroidism was lower than that of the control [(3191.8±659.47 g) vs (3301.9±423. 1 g), P<0.05], the incidence of abnormal glucose metabolism was higher (24.6% vs 11.4% ,P<0.05), and small for gestational age infants were more common than in the control group (12. 3% vs 2. 5%, P<0. 05). The maternal and fetal outcomes of women with subclinical hypothyroidism during pregnancy showed no difference compared with the control. Conclusions Early screening for the high risk women and appropriate management are important to improve the neonatal and fetal outcomes of women with hypothyroidism and subclinical hypothyroidism during pregnancy.     

妊娠合并甲状腺功能减退症或亚临床甲状腺功能减退症77例临床分析

Objective To investigate the maternal and fetal outcomes of pregnant women with hypothyroidism or subclinical hypothyroidism. Methods From Jan. 2005 to Mar. 2008, clinical records of 77 women with hypothyroidism (n=57) or subclinical hypothyroidism (n = 20) during pregnancy who delivered at Peking Union Medical College Hospital were reviewed. The basic information, maternal complications and neonatal outcomes of the patients were compared with 79 healthy women who delivered during the same period. Results The prevalence of maternal hypothyroidism during the study period was 0.74% ,and that of maternal subclinical hypothyroidism was 0.26%. The mean neonatal birth weight of women with hypothyroidism was lower than that of the control [(3191.8±659.47 g) vs (3301.9±423. 1 g), P<0.05], the incidence of abnormal glucose metabolism was higher (24.6% vs 11.4% ,P<0.05), and small for gestational age infants were more common than in the control group (12. 3% vs 2. 5%, P<0. 05). The maternal and fetal outcomes of women with subclinical hypothyroidism during pregnancy showed no difference compared with the control. Conclusions Early screening for the high risk women and appropriate management are important to improve the neonatal and fetal outcomes of women with hypothyroidism and subclinical hypothyroidism during pregnancy.     

妊娠合并甲状腺功能减退症或亚临床甲状腺功能减退症77例临床分析

Objective To investigate the maternal and fetal outcomes of pregnant women with hypothyroidism or subclinical hypothyroidism. Methods From Jan. 2005 to Mar. 2008, clinical records of 77 women with hypothyroidism (n=57) or subclinical hypothyroidism (n = 20) during pregnancy who delivered at Peking Union Medical College Hospital were reviewed. The basic information, maternal complications and neonatal outcomes of the patients were compared with 79 healthy women who delivered during the same period. Results The prevalence of maternal hypothyroidism during the study period was 0.74% ,and that of maternal subclinical hypothyroidism was 0.26%. The mean neonatal birth weight of women with hypothyroidism was lower than that of the control [(3191.8±659.47 g) vs (3301.9±423. 1 g), P<0.05], the incidence of abnormal glucose metabolism was higher (24.6% vs 11.4% ,P<0.05), and small for gestational age infants were more common than in the control group (12. 3% vs 2. 5%, P<0. 05). The maternal and fetal outcomes of women with subclinical hypothyroidism during pregnancy showed no difference compared with the control. Conclusions Early screening for the high risk women and appropriate management are important to improve the neonatal and fetal outcomes of women with hypothyroidism and subclinical hypothyroidism during pregnancy.     

妊娠合并甲状腺功能减退症或亚临床甲状腺功能减退症77例临床分析

Objective To investigate the maternal and fetal outcomes of pregnant women with hypothyroidism or subclinical hypothyroidism. Methods From Jan. 2005 to Mar. 2008, clinical records of 77 women with hypothyroidism (n=57) or subclinical hypothyroidism (n = 20) during pregnancy who delivered at Peking Union Medical College Hospital were reviewed. The basic information, maternal complications and neonatal outcomes of the patients were compared with 79 healthy women who delivered during the same period. Results The prevalence of maternal hypothyroidism during the study period was 0.74% ,and that of maternal subclinical hypothyroidism was 0.26%. The mean neonatal birth weight of women with hypothyroidism was lower than that of the control [(3191.8±659.47 g) vs (3301.9±423. 1 g), P<0.05], the incidence of abnormal glucose metabolism was higher (24.6% vs 11.4% ,P<0.05), and small for gestational age infants were more common than in the control group (12. 3% vs 2. 5%, P<0. 05). The maternal and fetal outcomes of women with subclinical hypothyroidism during pregnancy showed no difference compared with the control. Conclusions Early screening for the high risk women and appropriate management are important to improve the neonatal and fetal outcomes of women with hypothyroidism and subclinical hypothyroidism during pregnancy.     

妊娠合并甲状腺功能减退症或亚临床甲状腺功能减退症77例临床分析

Objective To investigate the maternal and fetal outcomes of pregnant women with hypothyroidism or subclinical hypothyroidism. Methods From Jan. 2005 to Mar. 2008, clinical records of 77 women with hypothyroidism (n=57) or subclinical hypothyroidism (n = 20) during pregnancy who delivered at Peking Union Medical College Hospital were reviewed. The basic information, maternal complications and neonatal outcomes of the patients were compared with 79 healthy women who delivered during the same period. Results The prevalence of maternal hypothyroidism during the study period was 0.74% ,and that of maternal subclinical hypothyroidism was 0.26%. The mean neonatal birth weight of women with hypothyroidism was lower than that of the control [(3191.8±659.47 g) vs (3301.9±423. 1 g), P<0.05], the incidence of abnormal glucose metabolism was higher (24.6% vs 11.4% ,P<0.05), and small for gestational age infants were more common than in the control group (12. 3% vs 2. 5%, P<0. 05). The maternal and fetal outcomes of women with subclinical hypothyroidism during pregnancy showed no difference compared with the control. Conclusions Early screening for the high risk women and appropriate management are important to improve the neonatal and fetal outcomes of women with hypothyroidism and subclinical hypothyroidism during pregnancy.     

妊娠合并甲状腺功能减退症或亚临床甲状腺功能减退症77例临床分析

Objective To investigate the maternal and fetal outcomes of pregnant women with hypothyroidism or subclinical hypothyroidism. Methods From Jan. 2005 to Mar. 2008, clinical records of 77 women with hypothyroidism (n=57) or subclinical hypothyroidism (n = 20) during pregnancy who delivered at Peking Union Medical College Hospital were reviewed. The basic information, maternal complications and neonatal outcomes of the patients were compared with 79 healthy women who delivered during the same period. Results The prevalence of maternal hypothyroidism during the study period was 0.74% ,and that of maternal subclinical hypothyroidism was 0.26%. The mean neonatal birth weight of women with hypothyroidism was lower than that of the control [(3191.8±659.47 g) vs (3301.9±423. 1 g), P<0.05], the incidence of abnormal glucose metabolism was higher (24.6% vs 11.4% ,P<0.05), and small for gestational age infants were more common than in the control group (12. 3% vs 2. 5%, P<0. 05). The maternal and fetal outcomes of women with subclinical hypothyroidism during pregnancy showed no difference compared with the control. Conclusions Early screening for the high risk women and appropriate management are important to improve the neonatal and fetal outcomes of women with hypothyroidism and subclinical hypothyroidism during pregnancy.     

妊娠期糖尿病产后糖代谢异常的危险因素

目的通过对妊娠期糖尿病(GDM)患者进行产后随访,回顾性分析影响GDM患者产后糖代谢变化的高危因素。方法收集2009年1月至2011年6月在河北省沧州市中心医院门诊产前检查并分娩的GDM患者236例,产后42d回访者158例,记录其孕前和孕期信息,包括:孕期年龄、身高、孕前体重、有否糖尿病家族史、孕期使用胰岛素情况、孕期并发症及合并症情况、新生儿出生时情况;并按OGTT试验结果分为研究组和对照组,进行高危因素筛查。结果研究组为60例糖耐量异常者,包括39例IGT/IFG患者和21例DM患者;对照组为98例糖耐量正常者,比较两组患者孕前、孕期和妊娠结局情况,结果可见高龄、糖尿病家族史、孕期应用胰岛素、合并子痫前期、早产是产后发生糖代谢异常的高危因素,差异有统计学意义(P<0.05)。结论存在高危因素的GDM患者产后糖代谢异常发生率较高,应针对性地对GDM患者进行产后临床筛查和随访。     

Long-Term Prognosis of Women with Abnormal Glucose Tolerance in Pregnancy

Summary: A 6-year-follow-up of 193 Chinese women with abnormal glucose tolerance (75 g OGTT, WHO criteria) during pregnancy was compared with a control group of 58 women with normal glucose tolerance during pregnancy in the same period. In the study group, 18 (9.3%) had diabetes and 38 (19.7%) had impaired glucose tolerance i.e. 56 (29.0%) had abnormal glucose tolerance compared with 3 (5.2%), 5 (8.6%) and 8 (13.8%) respectively in the control group. The incidence of abnormal glucose tolerance was significantly higher in the study group. In the study group, the serum glucose (fasting 6 mmol/L or above, 2 hours 11.0 mmol/L or above) during pregnancy and at 6 weeks postpartum were predictive of the development of diabetes. Age, obesity, history of diabetes in first degree relatives, previous baby over 4 kg, body mass index at follow-up, recurrent abnormal glucose tolerance during pregnancy and use of oral contraceptives within 6 months of follow-up were not.     

Risk of diabetes mellitus after pregnancy complicated by gestational diabetes mellitus (GDM)

OBJECTIVES: The aim of the study was an assessment of glucose tolerance disorders' (GTD) prevalence after pregnancy complicated by GDM. DESIGN: Retro- and prospective clinical study. MATERIAL AND METHODS: The group of 461 women having GDM in their index pregnancies was invited to postpartum glucose metabolism assessment. Of them 192 subjects responded positively. In 47 of them the postpartum diagnosis of diabetes had already been established. The remaining 145 subjects underwent detailed testing that embraced fasting plasma glucose and whole blood HbA1c level measurement. Oral 75-g glucose tolerance test (OGTT) was also performed. RESULTS: OGTT revealed GTD in 55 subjects. Diabetes was found in 8 cases, impaired glucose tolerance (IGT) and impaired fasting glucose (IFG) in 23 and 24 cases respectively. Postpartum GTD appeared in 63.3% of insulin treated subjects (GDM2) compared with 30.1% of women treated with diet only (GDM1). A group with pathological OGTT had mean HbA1c concentration significantly higher compared to the one with normal test results (6.0+/-1.7% vs. 5.1+/-0.3%; p<0.001), although HbA1c>6.0% was observed only in 23.6% women with GTD. Moreover, in 25% of subject with newly diagnosed diabetes HbA1c level did not exceeded 6.0%. CONCLUSIONS: 1. More than 50% of subjects with GDM developed diabetes or other GTD during the first 6 years postpartum. 2. Risk of postpartum GTD is significantly higher in women treated with insulin during pregnancy. 3. HbA1c measurement is less sensitive than OGTT for detection of GTD after pregnancy complicated by GDM.     

早孕期空腹血浆血糖与妊娠期糖代谢异常的相关性

目的 探讨早孕期空腹血浆血糖(fasting plasma glucose,FPG)与妊娠期糖代谢异常的相关性.方法 选取2009年1月1日至2009年5月31日在北京大学第一医院妇产科产前保健及分娩的单胎非孕前糖尿病且早孕期5～13周检测FPG、资料齐全的孕妇656例,对其早孕期FPG孕24周后50 g葡萄糖负荷试验结果(glucose challenge test,GCT)、75 g葡萄糖耐量试验结果(oral glucose tolerance test,OGTT)、妊娠期糖尿病(gestational diabetes mellitus,GDM)和妊娠期糖耐量受损(gestational impaired glucose tolerance,GIGT)发病情况进行受试者工作特性(receiver operating characteristic,ROC)分析.结果 (1)早孕期FPG与孕24周后GCT的ROC分析:最大曲线下面积0.539,95%CI:0.493～0.586,两者无明显相关性(P=0.057).(2)早孕期FPG与孕24周后FPG异常的ROC分析:最大曲线下面积0.796(95%CI:0.672～0.920),如取5.05 mmol/L为界值,敏感性为54.5%,特异性为83.2%,两者存在相关性(r=0.432,P=0.000).(3)早孕期FPG与孕24周后OGTT 1、2、3 h血糖无相关性(r=0.093、0.036和0.107,P=0.122、0.549和0.074),OGTT服糖前与服糖后1、2、3 h血糖分别呈正相关(r=0.493、0.421和0.368,P均=0.000).(4)本研究中共656例早孕期孕妇的FPG值均＜6.1 mmol/L,诊断GDM 22例,GIGT 27例,早孕期FPG对预测最终发生GDM及GIGT无相关性.结论 早孕期FPG不能取代现有的50 g GCT作为孕期糖代谢异常的早期筛查指标,但早孕期FPG的检测是必要的.

Abstract：

Objective To investigate the relationship between early pregnancy fasting plasma glucose (FPG) and gestational glucose metabolism disorders. Methods Six hundred and fifty-six pregnant women who were singleton, non-diabetes before pregnancy and had FPG examined during 5-13 weeks of pregnancy were admitted into this study from January 1, 2009 to May 31, 2009. All these subjects had routine prenatal examination and finally delivered in the Department of Obstetrics of Peking University First Hospital. The FPG, 50 g glucose challenge test (GCT) after 24 weeks of pregnancy, 75 g oral glucose tolerance test (OGTT), gestational diabetes mellitus (GDM),gestational impaired glucose tolerance (GIGT) were analyzed with receiver operating characteristic (ROC) curve. Results (1) Relationship between FPG and GCT were analyzed with ROC curve.The maximum area under curve was 0. 539 (95% CI: 0. 493-0. 586) and there was no correlation between the FPG and GCT results(P=0. 057). (2) Relationship between early pregnancy FPG and abnormal FPG examined after 24 gestational weeks were also analyzed . The maximum area under curve was 0. 796(95% CI: 0. 672-0. 920). If 5. 05 mmol/L was taken as the cutoff value, the sensitivity and specificity was 54. 5% and 83. 2%, respectively. There was significant relationship between the two values (r=0. 432, P=0. 000). (3) There were no relationship between early pregnancy FPG and the blood glucose value of 1, 2 and 3 h in 75 g OGTT (r=0. 093, 0. 036 and 0. 107, P=0.122, 0. 549 and 0. 074 respectively). OGTT 0 h value was positively related to OGTT 1, 2 and3 h glucose level (r=0.493, 0.421 and 0.368, P=0.000, respectively). (4) All early pregnant FPG values in this study were under 6.1 mmol/L. Twenty-two GDM and 27 GIGT patients were diagnosed in this study. Early pregnancy FPG did not relate to the GDM and GIGT diagnosis.Conclusions Early pregnancy FPG could not replace 50 g GCT as an early screening for glucose metabolic abnormality in pregnancy, but FPG during early pregnancy is necessary.     

Maternal mean arterial pressure and oral glucose tolerance test results. Relationship in normotensive women

OBJECTIVE: To examine the relationship between oral glucose tolerance test (OGTT) results and maternal mean arterial pressure (MAP) throughout pregnancy in normotensive women. STUDY DESIGN: A retrospective study was performed on 84 pregnant women with normal and abnormal antenatal OGTT results who delivered in a 12-month period to determine the changes in MAP and its relationships with the OGTT values. RESULTS: MAP was increased from 28 weeks until delivery in gestational diabetics (n = 50) as compared with controls (n = 34). The OGTT fasting glucose value significantly correlated with MAP at 32 and 36 weeks, while the 2-hour glucose value correlated with MAP at 24 weeks and from 32 weeks until predelivery. Only the 2-hour glucose values from 32 weeks until delivery correlated with MAP when body mass index was controlled for. CONCLUSION: Progressive glucose intolerance is associated with an upward shift in blood pressure in the third trimester of pregnancy in normotensive women. Blood pressure changes below the diagnostic threshold for hypertensive disorders of pregnancy may help to identify women at increased risk of gestational diabetes mellitus.     

Effects of new criteria for type 2 diabetes on the rate of postpartum glucose intolerance in women with gestational diabetes.

OBJECTIVE: Our purpose was to determine the impact of the 1997 American Diabetes Association diagnostic criteria for type 2 diabetes mellitus on the rate of postpartum glucose intolerance in women with gestational diabetes. STUDY DESIGN: Women identified as having gestational diabetes were instructed to undergo a 75-g, 2-hour glucose tolerance test 4 to 6 weeks after delivery. The results were retrospectively categorized with both the 1979 National Diabetes Data Group criteria and those recommended by the American Diabetes Association in 1997. RESULTS: Though the rate of overt diabetes mellitus did not increase when the 1997 American Diabetes Association criteria were used (7.8% vs 5.6%, P = not significant), the rate of impaired glucose metabolism was higher (20.1% vs 5%, P <.001). Most women (28/30, 93%) with a nondiagnostic glucose tolerance test result by the older criteria had abnormal results by the newer criteria. Fifty women had abnormalities of glucose metabolism under 1997 American Diabetes Association criteria; 34% of these women had fasting plasma glucose values in the normal range. Of the 25 women with impaired glucose tolerance, 16 (64%) had only an abnormal 2-hour value, with normal fasting glucose values. CONCLUSIONS: The rate of postpartum abnormalities in glucose metabolism more than doubles when the 1997 American Diabetes Association criteria are applied; more women are identified with lesser degrees of impairment. However, relying on fasting glucose levels alone, without glucose tolerance testing, may miss one third of women with such abnormalities.     

Risk factors for postpartum glucose intolerance in women with gestational diabetes mellitus

Objectives: To determine the risk factors for glucose intolerance (GI) during the postpartum period in women with gestational diabetes mellitus (GDM).

Methods: This prospective cohort study included 72 Japanese women with GDM who underwent 75?g oral glucose tolerance tests (OGTT) at 12 weeks after delivery. These women were divided into the GI group and the normal group based on postpartum OGTT. Risk factors for GI, including levels of blood glucose (BG), area under the curve (AUC) of glucose, AUC insulin, HbA1c, homeostasis model assessment-insulin resistance (HOMA-IR), HOMA-β, insulinogenic index (II) and the oral disposition index (DI) in antepartum OGTT, were analyzed by logistic regression analyses.

Results: Of the 72 women, 60 (83.3%) were normal and 12 (16.7%) had GI. By univariate logistic regression analyses, fasting BG, AUC glucose, HOMA-β, II and oral DI were selected as risk factors for GI. Multivariate logistic regression analysis revealed that the level of II in antepartum OGTT was a significant factor that predicted GI after delivery (odds ratio, 0.008; 95% CI, 0.0001–0.9; p?Conclusions: II measured by OGTT during pregnancy might be a useful predictor of GI within the early postpartum period in women with GDM.     

Risk factors of abnormal carbohydrate metabolism after pregnancy complicated by gestational diabetes mellitus

Objective: In gestational diabetes mellitus (GDM) abnormal glucose metabolism normalizes soon after delivery. However, the history of GDM predisposes to carbohydrate intolerance in the future. The aim of the study was to explore risk factors and to evaluate risk of glucose intolerance and diabetes mellitus in women with a history of GDM. Methods: 155 patients entered this case-control study. Participants fulfilled the inclusion criteria: a history of GDM, perinatal care in the study center. Medical and family history and laboratory findings were analyzed. Oral glucose tolerance test (OGTT) was performed. Results: 18.1% of patients presented impaired fasting glucose during the study, 20% presented impaired glucose tolerance and 23.2% presented diabetes mellitus. Gestational age at diagnosis of GDM, the results of OGTT during pregnancy, serum HbA1c concentration at 2nd and 3rd trimester, serum fructosamine concentration, symptoms of diabetic fetopathy in the neonate, the need for insulin therapy after delivery, maternal age at diagnosis of GDM and maternal body mass index before pregnancy were the significant risk factors of impaired glucose tolerance or diabetes in the future. Conclusion: GDM increases the risk of diabetes mellitus. Several risk factors of impaired carbohydrate metabolism can be distinguished in patients with a history of GDM.     

Changes in pancreatic B cell function during late pregnancy, early lactation and postlactation

Oral glucose tolerance tests were performed in 10 normal women during late pregnancy (36 +/- 1 weeks of gestation), early lactation (5 days after delivery) and postlactation (1 week after weaning). A marked decrease in basal plasma insulin and C peptide concentrations, as well as in the B cell secretory response to hyperglycemia, was observed at the 5th day of postpartum, compared to the high values recorded in late pregnancy. Except for a higher basal C peptide level and a lower plasma prolactin concentration, there was no major difference between early lactation and postlactation. At the 5th day after delivery, the insulin response to hyperglycemia was lower in lactating than in nonlactating women (14 subjects in each group). It is concluded that, in normal women, pancreatic B cell function undergoes a rapid normalization during the postpartum, at least when the latter coincides with the onset of lactation.     

妊娠期血糖异常产后母儿随访分析

目的　探讨妊娠期不同程度的血糖异常者产后发生糖尿病 (DM )的高危因素和预防措施 ,以及妊娠期血糖异常对其子女的远期不良影响等。方法　对 1994～ 2 0 0 0年 196例妊娠期血糖异常者进行产后随访 ,其中50 g葡萄糖筛查阳性 (50g阳性 ) 12 3例 ,葡萄糖耐量减低 (IGT) 3 7例 ,妊娠期糖尿病 (GDM ) 3 6例。此 3组人群均进行 75g葡萄糖耐量试验 (OGTT )及血脂检测。对其子女行血糖检测及生长发育水平观察 ,包括测量头围、胸围、身高及体重等。结果　 196例随访者中发生IGT、空腹血糖异常 (IFG)、DM共 2 2例 (占 11 2 2 % ) ,其中 50g阳性、IGT、GDM者其产后平均 3年内血糖异常发生率依次为 2 43 %、2 1 62 %、3 0 56% ,后两者与 50 g阳性相比差异有显著性意义 (P <0 0 1) ,其相关因素与产妇高龄 (40 90 % )、肥胖体型 (2 1 2 7% )、孕期血糖控制不良(45 45% )、产后体重显著增加 (40 91% )有关。 14 5例随访子女中虽血糖检测未见异常 ,但发生肥胖者 16例 (占11 0 3 % ) ,且其母孕期血糖控制不良者 9例 (占 56 2 5% )。结论　GDM及IGT者产后DM发生率高 ,应引起重视。妊娠期及时有效地控制高血糖及产后继续饮食调理与加强运动疗法 ,对维护产后母儿健康有益