“Hyperglycemia has emerged as a modifiable mediator of adverse events after surgery. Potential mechanisms for these outcomes include the vascular, inflammatory, and hemodynamic derangements that occur as a result of persistently elevated glucose levels, all of which can contribute to the risk of morbidity and mortality after surgery.” (Chen)

“Postoperative hyperglycemia was more significantly associated with adverse clinical outcomes after elective colorectal surgery than was preoperative hyperglycemia. However, preoperative hyperglycemia was associated with postoperative hyperglycemia, suggesting that improved glycemic management preoperatively may help reduce hyperglycemic events after surgery.” (Chen)