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Modulating postoperative insulin resistance by preoperative carbohydrate loading
Abstract
The concept of preoperative overnight fasting was challenged and proved to have no benefits over allowing patients to drink clear fluids up until 2 h before surgery. This led to changes in the guidelines for preoperative fasting in many countries around the world. This concept has more recently been developed further. Mounting evidence indicates that instead of being operated in the traditional overnight fasted state, undergoing surgery in the carbohydrate-fed state has many clinical benefits. Many of these clinical effects can be related to reduced postoperative insulin resistance by preoperative carbohydrate loading. This article summarises the present understanding of the mechanisms behind the positive clinical effects and gives an overview of the information available regarding the clinical effects of this treatment. Finally, the article summarises the most recently published national guidelines on preoperative fasting routines where preoperative carbohydrates are recommended for use before a major surgery. These are to be considered for all patients allowed to drink clear fluids and undergoing elective surgery.
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The evidence for preoperative oral carbohydrate loading before cardiac surgery is weak.
“Although preoperative oral carbohydrate loading has been proposed to benefit cardiac function and may improve length of stay, its evidence before cardiac surgery is weak.186,194”
From Malnutrition and Cachexia in Inpatients With Acute Cardiac Conditions: A Scientific Statement From the American Heart Association (2026) · cites this paper as [194]
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Sorted by citations
Vest, A. R., DiDomenico, R. J., Lichtenstein, L., Slater, T., Ekpo, E., Damluji, A. A., Bohula, E., Alviar, C. L., on behalf of the American Heart Association Acute Cardiac Care and General Cardiology Committee of the Council on Clinical Cardiology, & Council on Cardiovascular and Stroke Nursing (2026) · Circulation · doi:10.1161/cir.0000000000001405 · Cited by 15
Metadata
- Authors
- Ljungqvist, O.
- Affiliations
- Karolinska University Hospital (SE)
- Corresponding author
- Ljungqvist, Olle
- ORCID
- Ljungqvist, Olle
- Venue
- Best Practice & Research Clinical Anaesthesiology
- Publisher
- Elsevier BV
- Published
- 2009-12
- Volume
- 23
- Issue
- 4
- Pages
- 401-409
- ISSN
- 1521-6896 (ISSN-L)
- 1753-3740
- OpenAlex
- W2109704839
- Cited by
- 187
- References
- 2
- Citations by year
- 2026: 5 · 2025: 7 · 2024: 15 · 2023: 12 · 2022: 11 · 2021: 16 · 2020: 11 · 2019: 11 · 2018: 17 · 2017: 13 · 2016: 9 · 2015: 20 · 2014: 11 · 2013: 6 · 2012: 10
- FWCI
- 1.22
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- Locations
- Best practice & research. Clinical anaesthesiology (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Surgery › Enhanced Recovery After Surgery
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Hyperglycemia and glycemic control in critically ill and hospitalized patients
- Health Sciences › Medicine › Physiology (medical) › Dietary Effects on Health
- Keywords
- preoperative carbohydrate loading, postoperative insulin resistance, preoperative fasting, elective surgery, surgical stress response
- MeSH terms
- Animals, Carbohydrates, Fasting, Humans, Insulin, Insulin Resistance, Postoperative Complications, Preoperative Care, Practice Guidelines as Topic, Elective Surgical Procedures
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