Related Experiment Video
Updated: Jun 6, 2026

12:08
Improving IV Insulin Administration in a Community Hospital
Published on: June 11, 2012
Glycemic control in critically ill patients: What to do post NICE-SUGAR?
1Paul E Marik, Division of Pulmonary and Critical Care Medicine, Eastern Virginia Medical School, Norfolk, VA 23507, United States.
World Journal of Gastrointestinal Surgery
|December 17, 2010
Summary
Stress hyperglycemia was once thought beneficial, but recent studies challenge tight glycemic control in intensive care units (ICUs). This paper explains conflicting results and offers practical glucose management strategies for ICUs.
Area of Science:
- Critical care medicine
- Endocrinology
- Metabolic regulation
Background:
- Stress hyperglycemia was historically viewed as an adaptive response, supplying fuel during increased metabolic demand.
- The Leuven Intensive Insulin Therapy Trial (2001) led to widespread adoption of tight glycemic control in intensive care units (ICUs).
- Subsequent research, including four randomized controlled trials and the NICE-SUGAR study, has failed to replicate the Leuven trial's findings.
Purpose of the Study:
- To explain the reasons for discordant findings regarding tight glycemic control in ICUs.
- To provide a practical approach for glucose management in the intensive care setting.
Main Methods:
- Review of key randomized controlled trials on glycemic control in ICUs.
- Analysis of the Leuven Intensive Insulin Therapy Trial and the NICE-SUGAR study.
- Development of a practical glucose control strategy based on current evidence.
Main Results:
- The benefits of tight glycemic control in ICUs, as suggested by the Leuven trial, have not been consistently replicated.
- Conflicting results suggest that the optimal approach to glucose control in ICUs may require re-evaluation.
- The paper proposes an explanation for these discrepancies in study outcomes.
Conclusions:
- The standard of care for glycemic control in ICUs needs reassessment due to conflicting evidence.
- A nuanced, practical approach to managing blood glucose in critically ill patients is necessary.
- Further research may be needed to refine glucose control targets and methods in the ICU.
Related Concept Videos
Hypoglycemia and Glucagon
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...
SBAR II: Application of SBAR
SBAR is an effective communication tool used by healthcare professionals to communicate patient information accurately. SBAR stands for Situation, Background, Assessment, and Recommendation. For a better understanding, an example is given below.
SBAR Report from a Nurse to a Health Care Provider
S: "Hello, Dr. Smith. This is Jane, RN, from the Med Surg unit. I am calling to tell you about Ms. White in Room 210, who is experiencing increased pain and redness at her incision site. Her recent...
SBAR Report from a Nurse to a Health Care Provider
S: "Hello, Dr. Smith. This is Jane, RN, from the Med Surg unit. I am calling to tell you about Ms. White in Room 210, who is experiencing increased pain and redness at her incision site. Her recent...
Diabetes: Management and Pharmacotherapy
The therapy for diabetes aims to alleviate hyperglycemia-related symptoms, prevent acute metabolic decompensation, and reduce chronic end-organ complications. Glycemic control is evaluated through short-term (self-monitoring, continuous glucose monitoring) and long-term (A1c, fructosamine) metrics, enabling near real-time tracking of blood glucose levels and reflecting glycemic control over specific time frames.
Insulin remains the cornerstone of treatment for most patients with type 1 and many...
Insulin remains the cornerstone of treatment for most patients with type 1 and many...
Oral Hypoglycemic Agents: Glinides
Repaglinide (Prandin) and Nateglinide (Starlix), known as glinides, are oral insulin secretagogues that stimulate insulin release from pancreatic β cells by closing the ATP-sensitive potassium channels (KATP channel). Repaglinide controls insulin release from pancreatic β cells by managing potassium efflux. It shares two binding sites with sulfonylureas and also has a unique site, indicating overlapping mechanisms of action. With a rapid onset and a 4-7 hour duration, it effectively manages...
Hypoglycemia
Hypoglycemia is a blood glucose level below 70 mg/dL. It commonly occurs in individuals using insulin or insulin-secreting drugs, but may also arise in non-diabetic conditions. People with type 1 diabetes are at the highest risk because they depend on exogenous insulin. People with type 2 diabetes are also at risk, especially when treated with insulin or medications such as sulfonylureas, which increase insulin release regardless of blood glucose levels. It develops when insulin levels exceed...
Hyperglycemia
Hyperglycemia is an abnormally high blood glucose level. It is diagnosed by fasting glucose ≥126 mg/dL, 2-hour oral glucose tolerance test (or OGTT) ≥200 mg/dL, random glucose ≥200 mg/dL with symptoms, or HbA1c ≥6.5%. However, HbA1c results may be unreliable in certain conditions, such as anemia or hemoglobinopathies, and the diagnosis should be confirmed unless classic symptoms are present. Postprandial hyperglycemia is typically considered significant when glucose levels exceed 180 mg/dL two...
