DOI: http://dx.doi.org/10.18203/2320-6012.ijrms20180287

Duration of analgesia, sensory and motor blockade and intra operative hemodynamic changes caused by intrathecal bupivacaine, bupivacaine plus clonidine and bupivacaine plus dexmedetomidine in spinal anesthesia: prospective, comparative study

Sankaranand P., Krishna Prasad G. V.

Abstract


Background: This is comparative study to differentiate the effects of Dexmedetomidine and clonidine on duration of analgesia, motor and sensory blockade and the intraoperative hemodynamic profile when mixed with Bupivacaine.

Methods: Patients aged 15-45 years having ASA 1 and ASA 2 scheduled for elective orthopedic surgeries under spinal anaesthesia were included and divided into 3 groups equally (50 patients each)’ i.e. Group B received only 3.0 ml of 0.5% Bupivacaine (Heavy); Group C received 3.0ml of 0.5% Bupivacaine (Heavy) mixed with Clonidine 30 µg; and Group D administered with 3.0 ml of 0.5% Bupivacaine (Heavy) mixed with 5µg Dexmedetomidine.

Results: Majority of the cases enrolled in the study were knee disorders and the rest being fracture femur, tibia. At preoperative interval mean systolic blood pressure and diastolic blood pressure of Group B was slightly higher than Group C and Group D. At the time when spinal anaesthesia was given, a slight fall in DBP of patients was observed in all Group B, Group C and Group D. Mean heart rate of patients at preoperative interval in patients of Group B, Group C and Group D respectively, with Group C and Group D showing slightly lower mean heart rate as compared with that of the mean heart rate of Group B but the values were not statistically significant. There were no any significant changes in the hemodynamic status.

Conclusions: Both of used combinations provide prolonged sensory and motor blockade, hemodynamic stability, minimal side effects, and excellent intraoperative and postoperative analgesia.


Keywords


ASA grade I/II, Hemodynamic, Spinal anesthesia

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References


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