scholarly journals Use of Oral Glucose Tolerance Testing and HbA1c At 6-14 Gestational Weeks to Predict Gestational Diabetes Mellitus In High-Risk Women

2021 ◽  
Author(s):  
Xiaoxiao Peng ◽  
Mingyi Liu ◽  
Jun Gang ◽  
Ying Wang ◽  
XiuHua Ma
Keyword(s):  
Diabetes Mellitus ◽  
Blood Glucose ◽  
High Risk ◽  
Glucose Tolerance ◽  
Pregnant Women ◽  
First Trimester ◽  
Tolerance Test ◽  
Oral Glucose ◽  
Oral Glucose Tolerance ◽  
High Risk Women

Abstract Objective:To study the prediction of gestational diabetes mellitus (GDM) in high-risk pregnant women by testing the 1-hour (1hPG) and 2-hour plasma glucose (2hPG) after an oral glucose tolerance test and the glycated hemoglobin (HbA1c) in early pregnancy (6-14 weeks).Methodology:We recruited 1311 pregnant women at high risk for diabetes from the Obstetrics Clinic of Daxing District People's Hospital between June 2017 and December 2019. Fasting blood glucose (FPG) and HbA1c were tested and a 75 g oral glucose tolerance test (OGTT) with 1-hour blood glucose (1hPG) and 2-hour blood glucose (2hPG) was performed during the first trimester of pregnancy. The women were seen at 24-28 weeks to follow-up for GDM. We calculated the receiver operating characteristic (ROC) and the area under the ROC curve (AUC) to determine the predictive values for early pregnancy FPG, 1hPG, 2hPG, and HbA1c for GDM in high-risk pregnant women.Results:The prevalence of pregestational diabetes mellitus among pregnant women at high risk of diabetes was 5.6%, and GDM was 24.7%. The AUCs for the predictive value of FPG, 1hPG, 2hPG, and HbA1c in high-risk pregnant women were 0.64, 0.76, 0.71, and 0.67, respectively. The AUC for 1hPG prediction of GDM in high-risk pregnant women is greater than FPG, 2hPG, and HbA1c. All differences were statistically significant.Conclusion:FPG, 1hPG, 2hPG, and HbA1c measured in the first trimester pregnancy of high-risk women are significant predictors of GDM. 1hPG was the most significant predictive value for GDM in high-risk pregnant women.

scholarly journals GESTATIONAL DIABETES MELLITUS

2012 ◽  
Vol 19 (04) ◽  
pp. 462-468
Author(s):  
M. IKRAM ◽  
SYED HAIDER HASAN ALAM ◽  
SHAFQAT MUKHTAR ◽  
M. Saeed
Keyword(s):  
Diabetes Mellitus ◽  
Blood Glucose ◽  
Gestational Diabetes ◽  
Glucose Tolerance ◽  
Gestational Diabetes Mellitus ◽  
Glucose Tolerance Test ◽  
Fasting Blood Glucose ◽  
Tolerance Test ◽  
Oral Glucose ◽  
Oral Glucose Tolerance

Introduction: Gestational diabetes mellitus is common disorder in pregnancy. It is associated with adverse pregnancy outcome. There is no consensus regarding the optimal approach to screening of gestational diabetes mellitus. The present study has tried toobserve the value of fasting blood glucose in screening of gestational diabetes. Objective: To determine the frequency of patients in whomfasting blood glucose and 100gm glucose tolerance show agreement for screening of gestational diabetes mellitus at 24 -28 wks. Studydesign: Comparative cross sectional study. Settings: The study was conducted at Gynecology and Obstetrics department Shaikh ZayedFederal Post Graduate Institute Lahore. Duration of study with dates: 6 months from 12Nov 2010 to 11 May 2011. Material and method: Thestudy included 135 booked patients with positive family history of diabetes mellitus. All patients underwent fasting blood glucose at 24-28 weeksof gestation, regardless of results of fasting blood glucose on next visit they underwent 100g oral glucose tolerance test (OGTT). The agreementbetween fasting blood glucose and 100g oral glucose tolerance test was calculated in frequency and percentages. Results: The mean age ofwomen in studied population was 27.15±3.70.Out of 135 patients 86.7 %( 117) showed agreement between results of fasting blood glucose and100g OGTT while 13.31 %( 18) showed no agreement between both of the tests. Conclusions: Fasting blood glucose is a good screeningoption for gestational diabetes mellitus along with positive history. It provides a simple, cheap and more practical test for screening of gestationaldiabetes mellitus. However diagnostic confirmation with 100g OGTT should be done.

Effects of metformin and insulin therapy regimens on postpartum oral glucose tolerance test results in pregnant women with gestational diabetes mellitus: a comparative study

2020 ◽  
Vol 41 (4) ◽  
Author(s):  
Moghadaseh Jahanshahi ◽  
Arash Rezaei Shahmirzadi ◽  
Elham Kashani ◽  
Reza Alipoor ◽  
Shoreh Vosough
Keyword(s):  
Diabetes Mellitus ◽  
Gestational Diabetes ◽  
Glucose Tolerance ◽  
Insulin Therapy ◽  
Pregnant Women ◽  
Glucose Tolerance Test ◽  
Tolerance Test ◽  
Oral Glucose ◽  
Oral Glucose Tolerance ◽  
Maternal Weight

AbstractObjectivesThe main purpose of this study was to compare the effects of two regimens of metformin and insulin therapy on postpartum oral glucose tolerance test (OGTT) results in pregnant women with gestational diabetes mellitus (GDM).MethodsIn this single-blind randomized clinical trial (RCT), a total number of 60 pregnant women meeting the inclusion criteria were assigned to two groups with a randomized block design (RBD): insulin therapy (IT) group (30 patients) and metformin therapy (MT) group (30 patients). At baseline, the data were comprised of prenatal maternal age, gestational age, GDM diagnosis, and maternal weight/height. During the postpartum period, 5-cc blood samples were taken from the pregnant women concerned to analyze their fasting blood sugar (FBS) levels. Then, the patients were asked to come back four days and six weeks later after delivery to check the OGTT results. At six weeks postpartum, in addition to OGTT, the glycated hemoglobin (HbA1C) test was performed for all mothers. Finally, six weeks after delivery, these mothers were evaluated with regard to weight loss and body mass index (BMI).ResultsSix weeks postpartum, the maternal weight and BMI significantly decreased in the MT group compared with the IT one, while there was no significant difference between both groups at baseline. On the fourth day, the OGTT results in the MT group were significantly lower in comparison with those in the IT group (p=0.012). At sixth weeks postpartum, the OGTT results were comparably lower in the MT group than those reported for the IT one; however, such a difference was not statistically significant (p=0.087).ConclusionsAccording to the study results, metformin could be an effective and safe treatment for pregnant women suffering from GDM instead of insulin therapy.

scholarly journals Self-administered oral glucose tolerance test with capillary glucose measurements for the screening of diabetes mellitus in high-risk adults: a feasibility study

2021 ◽  
Vol 9 (2) ◽  
pp. e002556
Author(s):  
Andrew Yen Siong Tan ◽  
Mui Suan Tan ◽  
Ashley Wu ◽  
Ai Choo Seah ◽  
Cecilia Chong ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
High Risk ◽  
Gestational Diabetes ◽  
Glucose Tolerance ◽  
Glucose Tolerance Test ◽  
Tolerance Test ◽  
Oral Glucose ◽  
Oral Glucose Tolerance ◽  
Capillary Glucose ◽  
Venous Glucose

IntroductionEarly diagnosis of prediabetes based on blood sampling for the oral glucose tolerance test (OGTT) is crucial for intervention but multiple barriers hinder its uptake. This study aimed to assess the feasibility and precision of a self-administered capillary OGTT for type-2 diabetes mellitus (T2DM) in high-risk individuals.Research design and methodsParticipants with history of gestational diabetes or prediabetes were recruited in primary care. Due to their prediabetic status and previous diagnosis of gestational diabetes mellitus, a proportion of participants had previous experience doing OGTT. They self-administered the capillary OGTT and concurrently their venous glucose samples were obtained. They filled a questionnaire to collect their demographic information, views of their capillary OGTT, and their preferred site of the test.ResultsAmong 30 participants enrolled in this feasibility study, 93.3% of them felt confident of performing the capillary OGTT themselves, and 70.0% preferred the test at home. Older, less educated participants found it less acceptable. Mean capillary glucose values were significantly higher than venous glucose values, with mean difference at 0.31 mmol/L (95% CI 0.13 to 0.49) at fasting, and 0.47 mmol/L (95% CI 0.12 to 0.92) 2 hours post-OGTT. Capillary and venous glucose measurements were correlated for fasting (r=0.95; p<0.001) and 2-hour-post-OGTT (r=0.95;p<0.001). The Fleiss-Kappa Score (0.79, p<0.0001) indicated fair agreement between the two methods. The capillary OGTT had excellent sensitivity (94.1%) and negative predictive value (NPV=91.7%) in identifying prediabetes or T2DM status, vis-a-vis to venous glucose samples.ConclusionSelf-administered capillary OGTT is feasible and acceptable, especially among younger adults, with excellent sensitivity and NPV compared with plasma-based OGTT.

scholarly journals Kockázatalapú praediabetesszűrés egy vidéki családorvosi praxisban – orális glükóztolerancia-teszt vagy glikált hemoglobin?

2019 ◽  
Vol 160 (50) ◽  
pp. 1976-1983
Author(s):  
Henrietta Galvács ◽  
János Szabó ◽  
Zoltán Balogh
Keyword(s):  
Diabetes Mellitus ◽  
High Risk ◽  
Glucose Tolerance ◽  
Oral Glucose Tolerance Test ◽  
Glucose Tolerance Test ◽  
Glycated Haemoglobin ◽  
Tolerance Test ◽  
Oral Glucose ◽  
Oral Glucose Tolerance ◽  
Increased Risk

Abstract: Introduction and aim: The aim of this study was to implement a two-stage diabetes screening programme in a severely disadvantaged municipality. In the first stage, diabetes risk assessment was carried out in the 18 to 75 age group, followed by screening of the high risk population for potential carbohydrate metabolism disorders using laboratory tests. Method: Stage 1: assessment of diabetes risk with the FINDRISC questionnaire; Stage 2: identification of carbohydrate metabolism status by oral glucose tolerance test and glycated haemoglobin test in patients with elevated or high risk of diabetes. Results: 406 individuals completed the FINDRISC questionnaire. Elevated or high risk for diabetes was confirmed in 129 individuals (31.77%). There was significant correlation between increased risk and age (p<0.001) and between increased risk and body mass index (p<0.001). Based on the oral glucose tolerance test, 28.3% and 9.43% of the patients were diagnosed with pre-diabetes and diabetes mellitus, respectively. According to the glycated haemoglobin test, the incidences of prediabetes and diabetes were 50.94% and 11.32%, respectively. The strongest predictors of prediabetes/diabetes mellitus was the age (p = 0.047). The correlation between prediabetes/diabetes mellitus and smoking (p = 0.635) and physical activity (p = 0.975) was the weakest. The results showed that the glycated hemoglobin value increased by mean 0.2% by metabolic syndromes patients. Conclusions: Our results highlight the necessity for improving preventative care. Based on the risks of significant mortality and disability due to diabetes, prevention and early diagnosis must be prioritised in primary care. In addition to the oral glucose tolerance test, measurement of glycated haemoglobin is also indicated, while keeping in mind the limitations of its diagnostic value. Evaluating for glycated hemoglobin results, it is also worth looking for the presence of metabolic syndrome. Orv Hetil. 2019; 160(50): 1976–1983.

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