Clinical Comparative Research On Sedation Between Dexmedetomidine And Innovar For The Patients Under Cervical Plexus Block In The Thyroid Surgeries

Objective:To investigate the efficacy and safety of Dexmedetomidine for the patients undergoing thyroid surgery under cervical plexus block, compared with receiving innovar; Methods:Sixty ASA I-II degree patients,aged18-55years old,were randomly divided into Dexmedetomidine group (group D) and control group (group C).Each group had forty cases.Group D received0.5ug/kg Dexmedetomidine in10minutes before the cervical plexus block,while group C received1/2innovar.After infusion,cervical plexus block were performed with0.375%Ropivacaine40ml Respectively, MAP、HR、RR were monitored.The Ramsay and complications were also recorded; Results:Compared with group C,the level of Ramsay were significantly lower in group D(P<0.05).Compared with group D,the level of MAP and HR were significantly higher at T1-T4in group C.The level of MAP and HR in group C at T1-T4were significantly higher than at T(p<0.05).while it is stable in group D; The bucking score and the restlessness score during the operating process were recorded;Amnesstic effects in group D were higher comparing to C group (P<0.05); Conclusion:Dexmedetomidine (0.5ug/kg) infused in10minutes before cervical plexus block,can increase the sedative effect to the patients under cervical plexus block in the thyroid surgeries and make hemodynamics stable.But it may lead to bradycardia.