ERAS Society's Guidelines on Perioperative Care: Part 1 - Preoperative Care
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9. Preoperative glucose and electrolyte management
The experts recommend,
- “Hyperglycemia and hypoglycemia are risk factors for adverse postoperative outcomes. Pre-operatively, glucose levels should be maintained at 144–180 mg/dL (8–10 mmol/L), a variable rate (sliding scale) insulin infusion should be used judiciously to maintain blood glucose in this range with appropriate monitoring of point of care blood glucose in line with local protocols to avoid hypoglycemia.
- Correction of potassium, magnesium and phosphate prior to surgery should be done using the intravenous route with appropriate monitoring and following local hospital policy. However, it should not delay the patient from being taken to the operating room.”
However, the recommendation level was weak.
10. Preoperative carbohydrate loading
The panel noted, “The increased risk of gastric stasis, intra-abdominal pathology, preoperative use of opioids and generalized practice of using preoperative nasogastric tubes and avoiding oral intake prior to surgery meant we extrapolated evidence of potential harm and this group could not recommend the use of carbohydrate loading”. They also noted that they could not identify any studies on the use or benefit of carbohydrate loading in emergency general surgery.
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