abdominalacuteadverseanalgesicanesthesiaaprilarticleassociationaugustauthorblockscardiacchiefcoviddecemberdetectiondexamethasonedoseeditoreffectfeaturedfebruarygeneralhighiiintraoperativejanuaryjulyjunemarchmaymethadonenauseaneonatalnovemberoctoberoutcomespainpatientspediatricpeepperioperativepostoperativepostsurgicalratiorecoveryrenalrespiratoryriskseptembersugammadexsurgerytrialuseversusvomiting