• Gildasio S de Oliveira, Jane M Bialek, Alparslan Turan, Robert J McCarthy, and Daniel I Sessler.
• From the *Department of Anesthesiology, Feinberg School of Medicine, Northwestern University, Chicago, IL; and †Department of Outcomes Research, Cleveland Clinic, Cleveland, OH.
• Reg Anesth Pain Med. 2015 Sep 1; 40 (5): 539-44.

Background And ObjectivesPerioperative modulation of the surgical inflammatory response has been hypothesized as a viable pharmacological preventive target for the development of chronic pain after surgery. The objective of the current investigation was to evaluate an association between intravenous dexamethasone 4 to 20 mg on the day of surgery with self-reported pain in the breast or axilla 3 months or more after mastectomy.MethodsThe study was a secondary data analysis of a prospective cohort investigation. Subjects who have undergone mastectomy surgery were evaluated at least 3 months after the surgical procedure for the presence of chronic postsurgical pain using validated pain questionnaires. Binary logistic regression analysis was used to determine the odds of development of chronic postsurgical pain in subjects who did and did not receive perioperative dexamethasone.ResultsThree hundred ten patients were included in the study. Fifty-two patients (17%) met the IMMPACT (Initiative on Methods, Measurement, and Pain Assessment in Clinical Trials) criteria for chronic pain in the breast and/or axillary region. Two hundred eleven (68%) of 310 subjects received perioperative dexamethasone on doses varying from 4 to 20 mg. The incidence of chronic pain in the mastectomy group who received perioperative dexamethasone was not different, 15 (15.2%) of 84 compared with 37 (17.5%) of 211 in the group who did not receive perioperative dexamethasone, difference -2% (95% confidence interval, -10 to 7; P = 0.75).ConclusionsPerioperative dexamethasone is not associated with a reduction in the incidence and/or severity of chronic postmastectomy pain. In addition, we did not detect a dose-response effect of dexamethasone on the incidence of chronic postsurgical pain.

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