View clinical trials related to Pregestational Diabetes.
Filter by:This study aims to investigate the presence and characteristics of maternal diabetes as a risk factor in newborns with hearing loss. Hearing loss is one of the most common congenital anomalies among newborns. The newborn hearing screening program is important for early diagnosis in newborns with hearing loss.Gestational diabetes, on the other hand, is a metabolic disease that occurs during pregnancy and can cause complications as in other diabetes mellitus patients. Despite our knowledge of major complications, the effect of the hyperglycemic intrauterine environment on hearing outcomes has not been adequately studied. The inner ear does not store energy, so it has a particularly high sensitivity to altered blood sugar and insulin. Altered inner ear metabolism leads to auditory and balance disorders. There is no study in the literature comparing uncomplicated gestational diabetes and pregestational diabetes as a prenatal complication that poses a risk of hearing loss.
Pregestational diabetes (PGD) during pregnancy may be associated with an increased rate of spontaneous abortions, intrauterine death and congenital anomalies among the offspring. Although the prevalence of congenital anomalies among the offspring of diabetic mothers is reduced as a result of the improvement of the glycemic control in the early pregnancy, the rate of congenital anomalies is increased and there seems to be an increased rate of neurodevelopmental disorders including some fine and gross motor deficits as well as increased rate of inattention and/or hyperactivity. In gestational diabetes, that develops in the second half of pregnancy (past the period of major organogenesis), there seems to be no increase in the rate of major congenital anomalies but there are some developmental disorders in the offspring. The exposure of the developing embryo and fetus to diabetic environment (i.e. hyperglycemia, hyperketonemia ext), is known to cause increased oxidative stress and significant changes in gene expression as observed in several experimental diabetic models. We hypothesize that diabetic environment may also cause long lasting epigenetic changes. It is therefore our purpose to evaluate these possible epigenetic changes and correlate their presence with the degree and time of onset of diabetes, (i.e. whether from the beginning as in PGD or in the second half of pregnancy as in GD), the degree of oxidative stress and with the neurodevelopmental outcome of the offspring. Diabetic pregnancies will be compared to a similar number of normal pregnancies in all parameters studied.
The purpose of this study is to compare intrapartum glycemic control using insulin pump versus intravenous (IV) insulin administration.