COMPARISON OF HYPERBARIC ROPIVACAINE AND HYPERBARIC BUPIVACAINE IN UNILATERAL SPINAL ANAESTHESIA

Dr. Rajeev Sharma; Dr. Pratibha Rathore; Dr. C K Vyas

Volume : VII, Issue : I, January - 2018

COMPARISON OF HYPERBARIC ROPIVACAINE AND HYPERBARIC BUPIVACAINE IN UNILATERAL SPINAL ANAESTHESIA

Dr. Rajeev Sharma, Dr. Pratibha Rathore, Dr. C K Vyas

Abstract :

OBJECTIVES: To assess and compare the onset and duration of sensory and motor block, duration of analgesia, haemodynamic changes and requirement of first analgesia in post operative period

METHODS: After obtaining approval from the Institutional Ethics Committee, this prospective, randomized, double blind study was conducted in 50 patients of ASA physical status I /II, aged between 18 to 50 years undergoing elective unilateral lower limb surgeries under unilateral SAB. Patients were randomly allocated into two groups using chit in box method.

Group B (n=25):7.5mg of 0.375% hyperbaric inj. bupivacaine (2ml)

Group R (n=25): 10mg of 0.5% hyperbaric inj. ropivacaine (2ml).

RESULTS :The mean onset of sensory block and motor block is earlier (p<0.05) in group B (sensory 2.98 � 0.54 min, motor 2.74 � 1.70 min) as compared to group R (sensory 5.16 � 1.74, motor 4.60 � 1.979 min). Mean duration of analgesia was significantly prolonged in group B (129.28 � 41.312 min) compared to group R (107.40 � 30.28 min). The mean duration of motor block was significantly longer in group B (218.76 � 64.598) as compared to group R (139.60 � 31.02 min). Proportion of unilateral block in patients were significantly higher (80%) in group B as compared to group R (48%) according to sensory block in non operative side .First analgesia time was shorter in group R (173 � 115.8 min) than in group B (289 � 146.4 min).

Conclusion: The faster onset and longer duration of block was observed in the bupivacaine group, while hyperbaric ropivacaine provides a more selective unilateral block with stable haemodynamic variables.