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Updated: Jul 19, 2026

Improving IV Insulin Administration in a Community Hospital
Published on: June 11, 2012
Insulin-based regimens decrease mortality rates in critically ill patients: a systematic review
1Intensive Care, Lincoln County Hospital, Greetwell Road, Lincoln, Lincolnshire, LN2 5QY, UK.
Objectives:
To determine whether treatment with glucose-insulin-potassium (GIK), insulin and glucose, or insulin by itself is beneficial in limiting organ damage after acute myocardial infarction (AMI) and reducing mortality and morbidity among critically ill hyperglycaemic patients.
Methods:
Systematic review of randomized controlled trials.
Main Outcome Measure:
To assess whether tight glycaemic control reduces morbidity and mortality.
Studies Reviewed:
Randomized controlled trials of insulin-based regimens in the treatment of critically ill patients.
Results:
Nine hundred and twenty-four potentially relevant studies were identified and screened for retrieval. Of these, 16 randomized controlled trials met the inclusion criteria (Table 1). Ten studies examined the effects of GIK, and six of these studies reported a mortality reduction with GIK treatment in addition to enhanced myocardial performance. Five studies examined the administration of insulin. Among these studies, tight glycaemic control of blood glucose in one study was shown to reduce morbidity and mortality of patients in intensive care. Only one study examined insulin/glucose therapy, and it showed a post-myocardial infarction mortality reduction of one year.
Conclusions:
There is increasing evidence that maintaining normoglycaemia and treatment with insulin-based regimens is beneficial in limiting organ damage and significantly reduces both morbidity and mortality in critically ill patients who require intensive care therapy.
Insights
Glucose-insulin-potassium (GIK) and insulin-based therapies show promise in reducing organ damage and mortality for critically ill hyperglycaemic patients after acute myocardial infarction (AMI). Tight glycaemic control is key to improving patient outcomes.
Area of Science:
- Cardiology
- Endocrinology
- Critical Care Medicine
Background:
- Hyperglycaemia is common in critically ill patients, particularly those with acute myocardial infarction (AMI).
- Elevated blood glucose levels are associated with increased morbidity and mortality in these patients.
- The optimal management of hyperglycaemia in intensive care settings remains an area of active research.
Purpose of the Study:
- To evaluate the efficacy of glucose-insulin-potassium (GIK), insulin and glucose, or insulin alone in limiting organ damage post-AMI.
- To assess the impact of these insulin-based regimens on mortality and morbidity in critically ill hyperglycaemic patients.
- To determine if tight glycaemic control improves outcomes in intensive care.
Main Methods:
- Systematic review of randomized controlled trials (RCTs).
- Included RCTs focused on insulin-based regimens for critically ill patients.
- Studies were screened for relevance and inclusion criteria.
Main Results:
- Six of ten studies on GIK reported reduced mortality and enhanced myocardial performance.
- One study demonstrated that tight glycaemic control with insulin reduced intensive care morbidity and mortality.
- A single study on insulin/glucose therapy indicated a one-year post-MI mortality reduction.
Conclusions:
- Evidence supports the benefit of normoglycaemia and insulin-based regimens in critically ill patients.
- These treatments are effective in limiting organ damage and reducing morbidity and mortality.
- Insulin-based therapies are crucial for intensive care management of hyperglycaemic patients post-AMI.
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