Change in Levels of C-Reactive Protein (CRP) and Serum Cortisol in Morbidly Obese Patients After Laparoscopic Sleeve Gastrectomy

Obesity Surgery, 01/21/2013

The aims of the study were to analyze CRP and cortisol levels pre– and postoperatively in morbidly obese patients undergoing a laparoscopic sleeve gastrectomy and to correlate them with weight loss and parameters associated with cardiovascular risk. CRP levels are increased preoperatively and in the postoperative course up to 1 year after surgery. Serum cortisol levels remain elevated until the 6th month after surgery. From this moment onward, serum cortisol is associated with the cardiovascular risk predictor reflecting the cardiovascular risk decreasement during the weight loss.


  • A prospective study of all the morbidly obese patients undergoing laparoscopic sleeve gastrectomy as bariatric procedure between October 2007 and May 2011 was performed.


  • A total of 40 patients were included in the study.
  • CRP levels decreased significantly 12 months after surgery (median reduction of 8.9 mg/l; p=0.001).
  • Serum cortisol levels decreased significantly 6 months after surgery (median reduction of 34.9 μg/dl; p=0.001).
  • CRP values reached the normal range (<5 mg/l) 1 year after surgery.
  • Referring to cortisol, a significant association was observed with the cardiovascular risk predictor (triglyceride/high–density lipoprotein cholesterol ratio) from the 6th month after surgery onward (Pearson correlation coefficient, 0.559; p=0.008).

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