Comparative evaluation of continuous epidural infusion of 0.0625% Bupivacaine + 0.0002% Fentanyl and 0.1% Ropivacaine + 0.0002% Fentanyl for labour analgesia
Aim& Objectives: To compare the total dose of Fentanyl and Bupivacaine with total dose of Ropivacaine and fentanyl in terms of total volume delivered-loading, infusion and top ups. Also, to compare Analgesic efficacy (VAS score) and adverse events if any.
Methods: 60 ASA physical status I or II parturients in labour who were either primigravidae or gravida 2 were included in a randomized, single blind, prospective study. After a bolus dose of 0.125 % Bupivacaine and 25 mcg Fentanyl, the group BF received a continuous epidural infusion of 0.0625% Bupivacaine and 0.0002% Fentanyl whereas the group RF received a bolus of 0.2% Ropivacaine and 25 mcg Fentanyl followed by an infusion of 0.1% Ropivacaine and 0.0002% Fentanyl.
Results: The Group BF and Group RF were comparable with respect to their physical parameters. It was seen that the pain relief in the group BF was excellent for 8 out of 30 patients (26.67%) whereas for the group RF it was excellent for 9 of 30 patients (30%). After that till delivery, both the groups had a comparable mean maternal pulse rate (p value >0.05). None of the parturient in study or control group ever had an episode of bradycardia. Throughout the remaining period of analgesia, the mean foetal heart rate was comparable between the two groups. In the present study groups only 2 parturients from group BF and only one parturient from group RF underwent caesarean section due to foetal distress. 6 parturients (20%) from group BF and 5 parturients (16.67%) from group RF developed hypotension.
Conclusion: Continuous infusion of 0.1% Ropivacaine + 0.0002 % Fentanyl provides equipotent labour analgesia and maternal satisfaction as 0.0625% Bupivacaine + 0.0002% Fentanyl infusion can provide.
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