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Glycemic Variability During Pregnancy After Bariatric Surgery

2026年7月27日 更新者:Diana Rodrigues dos Santos Martins、Centro Hospitalar Universitário de Santo António

Glycemic Variability on Continuous Glucose Monitoring Predicts Small-for-Gestational-Age Neonates in Pregnancies After Metabolic and Bariatric Surgery

Pregnancies after Metabolic and Bariatric Surgery (MBS) are linked to increased incidence of small-for-gestational-age (SGA) neonates. Hypoglycemia and glucose variability (GV) are known determinants of fetal growth; however, their impact on neonatal birth weight in pregnancies after MBS remains unclear.

This study aims to assess whether glycemic profiles in these pregnancies are associated with fetal growth and to determine if specific GV parameters can predict growth restriction and SGA neonates.

This is a single-center prospective cohort study of pregnant women previously post-MBS who underwent intermittently scanned continuous glucose monitoring (isCGM) once for trimester of pregnancy, allowing their glycemic profile to be analyzed.

The primary aims of this study were to evaluate the extent to which the glycemic profile of pregnant women after MBS impacts fetal growth, and to identify which specific GV parameters may be used to predict fetal growth restriction and SGA neonates.

研究概览

详细说明

Prespecified clinical data for both participants and their newborns were collected from electronic medical records - neonates were then classified as appropriate-for-gestational-age (AGA) or small-for-gestational- age (SGA).

The glucose sensors were placed by the clinical team during the appointments in the back of the arm, and participants were trained on the appropriate use of the devices.

All women were followed up by a multidisciplinary antenatal care team comprising obstetricians, endocrinologists, and dietitians. Standard pregnancy management included regular outpatient appointments for clinical follow-up and laboratory assessments of nutritional status.

研究类型

介入性

注册 (实际的)

47

阶段

  • 不适用

联系人和位置

本节提供了进行研究的人员的详细联系信息,以及有关进行该研究的地点的信息。

学习地点

    • Porto District
      • Porto、Porto District、葡萄牙、4050-651
        • CHUStAntónio - Centro Materno Infantil Norte (CMIN)

参与标准

研究人员寻找符合特定描述的人,称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

  • 成人
  • 年长者

接受健康志愿者

不

描述

Inclusion Criteria:

  • Pregnant women who underwent metabolic bariatric surgery
  • Enrollement at first or second trimesters of pregnancy

Exclusion Criteria:

  • Twin pregnancies
  • Pregnancies ending in miscarriage
  • Pregnancies with planned delivery at other institution

学习计划

本节提供研究计划的详细信息,包括研究的设计方式和研究的衡量标准。

研究是如何设计的?

设计细节

  • 主要用途:诊断
  • 分配:不适用
  • 介入模型:单组作业
  • 屏蔽:无(打开标签)

武器和干预

参与者组/臂
干预/治疗
其他:Pregnant women post- bariatric surgery - Characterization of the glucose profile and birth weight
Pregnant women previously submitted to metabolic bariatric surgery underwent intermittently scanned continuous glucose monitoring once per trimester (14 days).
A prospective study to evaluate glycemic variability (GV) throughout pregnancy in women who have undergone bariatric surgery and its ability to predict the birth of infants small-for-gestational age (SGA). In addition to the use of intermittently icanned continuous glucose monitoring (isCGM) a publicly accessible, automated analysis tools were employed, allowing for a more comprehensive analysis than those previously conducted.

研究衡量的是什么?

主要结果指标

结果测量
措施说明
大体时间
Birth weight
大体时间:At delivery (up to 41 gestational weeks)
Birth weight measured in grams
At delivery (up to 41 gestational weeks)
Mean absolute glucose change [MAG change]
大体时间:During two weeks - once per trimester of pregnancy
MAG change measures the average rate of glucose change over time, capturing both magnitude and speed. Unit: mg/dLxh-1
During two weeks - once per trimester of pregnancy

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

出版物和有用的链接

负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查,以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (实际的)

2021年1月26日

初级完成 (实际的)

2023年12月31日

研究完成 (实际的)

2025年9月30日

研究注册日期

首次提交

2026年7月14日

首先提交符合 QC 标准的

2026年7月27日

首次发布 (实际的)

2026年7月28日

研究记录更新

最后更新发布 (实际的)

2026年7月28日

上次提交的符合 QC 标准的更新

2026年7月27日

最后验证

2026年7月1日

更多信息

与本研究相关的术语

计划个人参与者数据 (IPD)

计划共享个人参与者数据 (IPD)?

不

药物和器械信息、研究文件

研究美国 FDA 监管的药品

不

研究美国 FDA 监管的设备产品

不

在美国制造并从美国出口的产品

不

此信息直接从 clinicaltrials.gov 网站检索,没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求,请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改,我们的网站上也会自动更新.

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