Spinal anesthesia is widely used simple and effective anesthetic technique for infra-umbilical surgeries that provides complete sensory and motor blockade. Bupivacaine is a potent commonly used local anesthetic for spinal anesthesia due to its long duration of action. However, the use of bupivacaine has some drawbacks. Levobupivacaine is a long acting local anesthetic which is as potent as bupivacaine with less systemic side effects. Addition of intrathecal opioids such as fentanyl and buprenorphine will enhance the characteristics of block which has been proved from previous studies.
The purpose of this study is to compare the effects of intrathecal fentanyl versus buprenorphine with levobupivacaine that is onset and duration of anaesthesia, perioperative hemodynamic changes and postoperative analgesia.
Levobupivacaine has short duration of motor blockade, cannot be used in longer duration of surgeries alone.
Common side effects of intrathecal opioids include drowsiness, nausea , vomiting, pruritis, urinary retention and occasionally respiratory depression.
The aim of the study is to determine the efficacy of fentanyl versus buprenorphine when added to 0.5% hyperbaric levobupivacaine for onset, duration of sensory and motor blockade of spinal anesthesia , hemodynamic changes and duration of post operative analgesia in patients undergoing infra umbilical surgeries.
To compare the onset and duration of sensory and motor blockade and the duration of postoperative analgesia.
To compare haemodynamic stability and adverse effects if any associated with the administration of study drugs.
Dr. S. Dhiveya Anaesthesia Resident Kauvery Hospital, Chennai
Dr. Velmurugan Deisingh Consultant Anaesthesiologist and Head of the Department Kauvery Hospital, Chennai
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