Comparative Evaluation of different doses of Dexmedetomidine for the treatment of shivering in parturients undergoing Caesarean section under Subarachnoid block

After caesarean delivery shivering can cause maternal discomfort and can interfere with oxygen saturation electrocardiogram and blood pressure monitoring. Therefore, developing strategies for treating shivering may improve the care that we provide to our parturient. Dexmedetomidine, a highly selective   alpha 2 adrenoreceptor agonist, is considered a valuable medication in the current obstetric anaesthesia. Here we are trying to compare   the efficacy of three different doses of Dexmedetomidine for the treatment of shivering in patients undergoing caesarean section under spinal anaesthesia. The Methodology and administration of drug shall be explained in detail with a written informed consent from the patient. The parturients will be divided into three groups of 41 each using block randomisation technique ( Group D1 will receive 0.3 mcg/kg of i.v dexmedetomidine on occurrence of shivering, Group D2 will receive 0.35mcg/kg of i.v dexmedetomidine and Group D3 will receive 0.4 mcg/ kg of i.v dexmedetomidine when they present with shivering).Patient will be taken in OT and standard monitoring will be attached and baseline vital parameters will be noted. A subarachnoid block will be performed in lateral decubitus position. On occurrence of shivering patient will be given allocated group drug and will be observed for 45 minutes. Shivering score, hemodynamic parameters, Sedation Score, time taken to reduce shivering score, duration of antishivering effect and dose of rescue antishivering drug if given shall be noted. Side effects related to dexmedetomidine injection will be recorded and treated.