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https://www.selleckchem.com/products/az20.html For a long time, the Me3 Si group has been ostracized from the family of aryl- and heteroatom-substituted congeners for the difficulties associated with its further chemoselective manipulation into another synthetically useful functional group. A hypervalent iodine reagent has now been shown to do exactly that by electrophilic demethylation. Coupled with the Tamao-Fleming oxidation, the Me3 Si group becomes a placeholder for a hydroxy group. Bell's palsy is an acute unilateral facial paralysis of unknown aetiology and should only be used as a diagnosis in the absence of any other pathology. As the proposed pathophysiology is swelling and entrapment of the nerve, some surgeons suggest surgical decompression of the nerve as a possible management option; this is ideally performed as soon as possible after onset. This is an update of a review first published in 2011, and last updated in 2013. This update includes evidence from one newly identified study. To assess the effects of surgery in the early management of Bell's palsy. On 20 March 2020, we searched the Cochrane Neuromuscular Specialised Register, CENTRAL, MEDLINE, Embase, ClinicalTrials.gov and WHO ICTRP. We handsearched selected conference abstracts for the original version of the review. We included all randomised controlled trials (RCTs) or quasi-RCTs involving any surgical intervention for Bell's palsy. Trials compared surgical interventions to no treatment, later treatment (beyoneneficial or harmful. Further research into the role of surgical intervention is unlikely to be performed because spontaneous or medically supported recovery occurs in most cases. There is very low-certainty evidence from RCTs or quasi-RCTs on surgery for the early management of Bell's palsy, and this is insufficient to decide whether surgical intervention is beneficial or harmful. Further research into the role of surgical intervention is unlikely to be performed because spontaneous or

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