Application Of General Anesthesia Combined With Cervical Plexus Block In Thyroid Cancer Surgery

Objective: The purpose of this study is to observe the effects of different anesthesia methods in thyroid cancer surgery.To observe and compare the effects of different anesthesia methods on hemodynamics,BIS,dosage of drugs,respiratory recovery time,recovery time,extubation time,postoperative pain and postoperative complications.To explore the effect of general anesthesia combined with cervical plexus block in the operation of thyroid cancer,and provide a good choice for the anesthesia of thyroid cancer surgery.Methods : Sixty adult patients with thyroid carcinoma are selected and divided into observation group and control group,each group had 30 cases.Half an hour before the surgery,all patients are injected with 0.5mg atropine and luminal sodium 0.1g.Patients in the control group are treated with general anesthesia,patients in the observation group are treated with ultrasound-guided cervical plexus block combined with general anesthesia.Under the guidance of ultrasound,the cervical plexus block is selected by a needle puncture method,with 1% lidocaine and a mixture of 0.375% ropivacaine as a local anesthetic drug,8ml and 4ml anesthetic drug are injected into the deep cervical plexus and superficial cervical plexus on the sick side of the patient,squirt 4ml anesthetic drug into the superficial cervical plexus.The effect of acupuncture is tested by needle point method.After complete block,timely drug is induced by midazolam,sufentanil,propofol,and cisatracurium are0.04-0.06 mg/kg.0.4-0.6 ug/kg,2.0-2.5 mg/kg,0.15-0.2 mg/kg for intravenous injection,tracheal intubation was performed under video endoscope.two groups of patients with general anesthesia using propofol and vecuronium continuous infusion,when the patient is awake after the operation,the trachea cannula is removed.Monitoring items: in all the cases,SBP,DBP,BIS and HR are recorded.The time of respiration resuming,recovery,extubation,the dose of anesthetic and postoperative 4h VAS score are recorded as well.To observe and compare the two kinds of anesthesia in patients with the change of heart rate and blood pressure and BIS value,the dosage of anesthetic drugs,the respiratory recovery time,recovery time and extubation time,the postoperative 4h VAS score and postoperative complications.Results: The observation group compared with the control group,HR?SBP? DBP are more stable,there is statistical difference(P<0.05).The BIS value of patients in the observation group is less than that in the control group,and there is statistical difference(P<0.05)between the two groups.However,there is no significant difference in diastolic pressure fluctuation and HR fluctuation between the two groups(P >0.05).Patients in the observation group are less than those in the control group,and there is significant difference(P<0.05).Conclusion: General anesthesia combining with cervical plexus block has less effect on hemodynamics,less stress reaction,quicker recovery,less pain,earlier extubation than general anesthesia does.So general anesthesia combining with cervical plexus block is better than general anesthesia in thyroid cancer surgery.