Analyzing peri operative changes in blood glucose levels from non-diabetic patients undergoing spine surgery

Background: Blood glucose (BG) dysregulation is a well-known situation in medical or surgical severe circumstances. However BG levels following spine surgery have never been described before. Our primary purpose is to measure postoperative changes in BG levels of non-diabetic patients undergoing spine surgery.

Methods: Non-diabetic consecutive adult patients undergoing spine surgery are going to be prospectively included during a 6 months period. BG capillary measures are collected from the preoperative fasting period to the end of postoperative day 3, six times a day. Three main glycemic parameters are calculated: Delta Day 0 (DD0), Day 2 mean (D2), and Hyperglycemic Index (HGI). In the peri operative period, no change in oral intake nor in intravenous fluids is prescribed. Patients are followed-up for three months postoperatively for any early adverse event, requiring or not surgical revision.

Inclusion Criteria:

• non diabetic spine surgery candidate

Exclusion Criteria:

• infection or history of infection of surgical site, past medical history of diabetes mellitus, defined as chronic glucose intolerance either insulin-dependent or non insulin-dependent at the time of operation, and patients with preoperative random BG levels greater than 126 mg/dl considering they could also represent undiagnosed diabetes

Sequential patients scheduled for spine surgery in our center, including degenerative, deformative, tumoral and traumatologic indications are eligible to participate.