Effect of low-dose intravenous dexamethasone on post lumbar discectomy pain: Randomized and Double blind study
Keywords:Lumbar Discectomy, Dexamethasone, Postoperative Pain, Pain measurement
Background and aim: The Pain is the most common complaint in various diseases. Postoperative pain is common complication and spatially in elderly patient because of exacerbation of heard and vessel was impotents. The aim of this study was evaluation of the effect of low-dose IV dexamethasone on postoperative pain in patients with lumbar discectomy.
Materials and Methods: In a clinical trial that studied in neurosurgery wards of Shohada and Imam Reza hospitals affiliated to the (Tabriz University of Medical Sciences on patients underwent lumbar discectomy, the effect of low-dose IV dexamethasone on postoperative pain was evaluated. 80 patients divided in 2 equal groups, we used IV morphine (present routine treatment) in group A and IV morphine in addition to 8mg IV dexamethasone in group B, for reducing post lumbar discectomy pain.
Results: 21 patients in group A, & 22 in group B were male and 19 patients in group A & and 18 in group B were female (P=0.823). Mean age of patients in groups A and B was 39.32 and 39.22 years, respectively (P=0.945). Mean of pain score (VAS) at 6 hours post-operation in group A and B was 6.97 and 6.75, respectively (P=0.065). VAS at 12, 18 or 24 hours post-operation in both groups didn’t differ significantly (P>0.05).
Conclusion: We didn't observe any significant reduction in post lumbar discectomy pain after adding 8 mg dexamethasone into morphine. Regarding other studies, it seems that higher doses of dexamethasone should be used to achieve a significant pain reduction.
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