We thank to Dilmen, M.D., for making comment about our article entitled “Effect of preoperative consumption of high carbohydrate drink (Pre-Op) on postoperative metabolic stress reaction in patients undergoing radical prostatectomy.” As we mentioned in our manuscript, the blood samples were obtained from all patients both prior to the surgery (preoperative) and on the 24th hour after surgery to measure blood glucose, insulin, and procalcitonin levels. We have used the standard homeostatic model assessment–insulin resistance equation [HOMA-IR = fasting insulin (μg mL−1) × fasting blood glucose (mg dL−1)/405] to detect insulin resistance.

Ozgur Canbay, M.D.

Hacettepe University

Ankara, Turkey