Preoperative Carbohydrate Drinks Do Not Decrease Postoperati
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Evaluation was done on whether preoperative carbohydrate drink would be able to decrease postoperative nausea and vomiting (PONV) and improve the quality of recovery (QoR) in diabetic patients undergoing total knee arthroplasty (TKA).

82 patients were randomized to either the IV Dextrose group (n = 41) or Oral carbohydrate (CHO) group (n = 41). The IV Dextrose group received dextrose solution mixed with insulin while fasting, and the Oral CHO group received carbohydrate drinks preoperatively. PONV was assessed up to postoperative 36 hours, and QoR was assessed before surgery and on postoperative day (POD) 1. Blood glucose was measured from the morning of surgery until POD 1.

Results:
-PONV scores were not different between the groups.
-Postoperative QoR scores were significantly higher in the Oral CHO group (median [interquartile range]; 160) than the IV Dextrose group (155), but the difference did not meet the minimal clinically important difference. Blood glucose was comparable between the groups.

Preoperative CHO drink did not reduce PONV in diabetic patients after total knee arthroplasty. A statistically significant but clinically questionable improvement in the QoR was seen in the Oral CHO group. However, preoperative CHO drink did not increase hyperglycemia, which suggests that it may be a safe component of perioperative care in diabetic patients.

Source: https://journals.lww.com/jaaos/Abstract/2021/01010/Preoperative_Carbohydrate_Drinks_Do_Not_Decrease.5.aspx
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