The Valsalva Maneuver Is Not as Effective as Lidocaine for the Attenuation of Pain on Injection of Propofol: A Randomized Controlled Study.

Cureus · 2022 · PMC9257113 · PMID 35816661

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may be significantno p-value reported

As VM induces bradycardia and hypotension, which may be significant following propofol injection, we also compared the hemodynamic responses before and after the intervention between the groups.

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