Hyperglycaemia in the Newborn Infant. Physiology Verses Pathology
1Department of Paediatrics, University of Cambridge, Cambridge University Hospitals National Health Service Foundation Trust, Cambridge, United Kingdom.
Frontiers in Pediatrics
|August 9, 2021
Summary
Hyperglycemia in critically ill newborns, especially preterm infants, is linked to poor outcomes. Continuous glucose monitoring (CGM) aids management and reduces hypoglycemia risk in preterm infants.
Area of Science:
- Neonatalogy
- Pediatric Intensive Care
- Endocrinology
Background:
- Hyperglycemia is prevalent in critically ill newborns, particularly preterm infants, those with sepsis, or perinatal hypoxia.
- Elevated blood glucose levels in neonates are associated with increased mortality and morbidity.
- Optimal management targets and intervention strategies for neonatal hyperglycemia remain debated due to limited evidence.
Purpose of the Study:
- To review the clinical significance of hyperglycemia in neonatal intensive care.
- To discuss current controversies and evidence regarding intervention thresholds and management strategies.
- To explore the role of continuous glucose monitoring (CGM) in neonatal glucose management.
Main Methods:
- Literature review of studies on neonatal hyperglycemia.
- Analysis of clinical significance, mortality, and morbidity data.
- Evaluation of management strategies including glucose infusion rate (GIR) and insulin use.
Main Results:
- Hyperglycemia is a common and serious complication in neonatal intensive care units (NICUs).
- Continuous glucose monitoring (CGM) has shown promise in improving glucose control and reducing hypoglycemia in preterm infants.
- Insulin use, while helpful, carries a risk of hypoglycemia, especially in extremely preterm infants.
Conclusions:
- Identifying and treating underlying causes of hyperglycemia is paramount.
- CGM offers a valuable tool for optimizing glucose control and minimizing hypoglycemia risks in preterm neonates.
- Further research is needed to establish optimal glucose targets and explore advanced management systems like closed-loop control.
Related Concept Videos
Pathophysiology of Diabetes
2.2K
Diabetes mellitus is a chronic metabolic disorder characterized by hyperglycemia. The four categories of diabetes are type 1 diabetes, type 2 diabetes, other specific types of diabetes, and gestational diabetes.
Type 1 diabetes is characterized by autoimmune-mediated destruction of pancreatic β cells, with environmental factors potentially triggering this process in genetically susceptible individuals. Despite many not having a family history, certain genes increase susceptibility,...
Type 1 diabetes is characterized by autoimmune-mediated destruction of pancreatic β cells, with environmental factors potentially triggering this process in genetically susceptible individuals. Despite many not having a family history, certain genes increase susceptibility,...
2.2K
Diabetes Mellitus: Type 2 and Gestational
3.5K
Type 2 diabetes, characterized by insulin resistance, arises when the insulin receptors on cells lose responsiveness to insulin, diminishing the cell's capacity to take up glucose, resulting in elevated blood glucose levels. To receive a diagnosis of Type 2 diabetes, a series of blood glucose tests are necessary to assess whether the blood glucose falls within normal parameters. If the result is out of the normal range, a patient may be diagnosed as prediabetic or diabetic, depending on the...
3.5K
Hypoglycemia and Glucagon
479
Without prolonged fasting, healthy individuals maintain blood glucose levels above 3.5 mM due to a well-adapted neuroendocrine counterregulatory system that effectively prevents acute hypoglycemia, a potentially life-threatening condition. The primary clinical scenarios for hypoglycemia encompass diabetes treatment, inappropriate production of endogenous insulin or insulin-like substances by tumors, and the use of glucose-lowering agents in non-diabetic individuals. Notably, hypoglycemia in the...
479
Inborn Errors of Metabolism
374
Phenylketonuria (PKU) is a protein metabolism disorder characterized by high blood levels of the amino acid phenylalanine. This results from a mutation in the gene responsible for phenylalanine hydroxylase, an enzyme that converts phenylalanine into tyrosine. When this enzyme is deficient, phenylalanine builds up in the blood, leading to symptoms such as vomiting, rashes, seizures, growth deficiency, and severe mental retardation. An early diagnosis and a diet restricting phenylalanine intake...
374
Glucose Transporters
26.2K
Glucose transporters facilitate the transport of glucose across the cell membrane. In addition to glucose, some glucose transporters can also aid the movement of other hexoses such as fructose, mannose, and galactose.
Facilitated diffusion-glucose transporters (GLUTs) are encoded by the solute-linked carrier (SLC) family 2, subfamily A gene family, or SLC2A. The 14 GLUT protein members are distributed into three classes:
Facilitated diffusion-glucose transporters (GLUTs) are encoded by the solute-linked carrier (SLC) family 2, subfamily A gene family, or SLC2A. The 14 GLUT protein members are distributed into three classes:
26.2K
Diabetes Mellitus: Overview and Type I Subtype
4.0K
Diabetes mellitus is a chronic metabolic disorder characterized by high blood glucose levels due to inadequate insulin production, insulin resistance, or both. The condition affects millions worldwide and can significantly impact their health and quality of life.
Type 1 diabetes is an autoimmune disease in which the immune system mistakenly attacks and destroys the insulin-producing beta cells in the pancreas. As a result, the body is unable to produce sufficient insulin, and individuals with...
Type 1 diabetes is an autoimmune disease in which the immune system mistakenly attacks and destroys the insulin-producing beta cells in the pancreas. As a result, the body is unable to produce sufficient insulin, and individuals with...
4.0K


