The effect of ketamine versus tramadol on prophylactic post-spinal shivering in those patients undergoing orthopedic surgery: a prospective cohort study design, 2020.

BMC Anesthesiol · 2022 · PMC9685948 · PMID 36424561

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highly significantno p-value reported

Adverse effects of the prophylactic agents The incidence of nausea and vomiting was statistically highly significant in tramadol group 157 (60.9%) with a p -value of 0.001.

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