A comparative study of intrathecal ketamine as an additive to 0.5% hyperbaric bupivacaine for intrathecal anaesthesia

Background: Spinal anaesthesia with bupivacaine for lower limb and lower abdominal surgeries is limited by the fixed duration of action and cannot be prolonged except with usage of spinal catheters which increase the chance of infection and occurrence of haemodynamic instability when used in high...

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Main Authors: N. Hemanth, S. Geetha, Aloka Samantaray, M.H. Rao, M. Madhusudan
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2013-10-01
Series:Journal of Clinical and Scientific Research
Subjects:
Online Access:http://svimstpt.ap.nic.in/jcsr/oct-dec13_files/OA1.pdf
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author N. Hemanth
S. Geetha
Aloka Samantaray
M.H. Rao
M. Madhusudan
author_facet N. Hemanth
S. Geetha
Aloka Samantaray
M.H. Rao
M. Madhusudan
author_sort N. Hemanth
collection DOAJ
description Background: Spinal anaesthesia with bupivacaine for lower limb and lower abdominal surgeries is limited by the fixed duration of action and cannot be prolonged except with usage of spinal catheters which increase the chance of infection and occurrence of haemodynamic instability when used in high doses. To minimize the instability in haemodynamics, several neuraxial adjuvants have been used. Methods: We carried out a prospective randomized double-blind study in 60 patients posted for lower abdominal and lower limb surgeries. Patients were divided into two groups of 30 each. Both groups received 3 mL of intrathecal hyperbaric 0.5% bupivacaine. In addition, ketamine group (Gr K) received ketamine 0.1mg/kg body weight intathecal (made to total volume of 0.5 mL); saline group (Gr S) received equal volumes of 0.9% normal saline intrathecally. The onset and duration of sensory and motor blockade and intraoperative haemodynamics were studied. Results: Addition of ketamine in comparison to saline administration produced significantly earlier onset (5.2±1Vs. 3.4±1; p=0.000), prolonged duration of sensory block (129.7±14.9 Vs. 111.3±11; p=0.000) and long duration of postoperative analgesia (150.8±11.7Vs. 127.8±12.8; p=0.000). Conclusion: Addition of ketamine to intrathecal hyperbaric bupivacaine provides better intraoperative spinal block characteristics, stable haemodynamics and longer duration of postoperative analgesia.
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spelling doaj.art-27d2ae66273840f58514c4793f3dee482022-12-22T04:13:59ZengWolters Kluwer Medknow PublicationsJournal of Clinical and Scientific Research2277-57062277-83572013-10-0124197202A comparative study of intrathecal ketamine as an additive to 0.5% hyperbaric bupivacaine for intrathecal anaesthesiaN. Hemanth0S. Geetha1Aloka Samantaray2M.H. Rao3M. Madhusudan4Department of Anaesthesiology, Sri Venkateswara Institute of Medical Sciences, TirupatiDepartment of Anaesthesiology, Sri Venkateswara Institute of Medical Sciences, TirupatiDepartment of Anaesthesiology, Sri Venkateswara Institute of Medical Sciences, TirupatiDepartment of Anaesthesiology, Sri Venkateswara Institute of Medical Sciences, TirupatiDepartment of Anaesthesiology, Sri Venkateswara Institute of Medical Sciences, TirupatiBackground: Spinal anaesthesia with bupivacaine for lower limb and lower abdominal surgeries is limited by the fixed duration of action and cannot be prolonged except with usage of spinal catheters which increase the chance of infection and occurrence of haemodynamic instability when used in high doses. To minimize the instability in haemodynamics, several neuraxial adjuvants have been used. Methods: We carried out a prospective randomized double-blind study in 60 patients posted for lower abdominal and lower limb surgeries. Patients were divided into two groups of 30 each. Both groups received 3 mL of intrathecal hyperbaric 0.5% bupivacaine. In addition, ketamine group (Gr K) received ketamine 0.1mg/kg body weight intathecal (made to total volume of 0.5 mL); saline group (Gr S) received equal volumes of 0.9% normal saline intrathecally. The onset and duration of sensory and motor blockade and intraoperative haemodynamics were studied. Results: Addition of ketamine in comparison to saline administration produced significantly earlier onset (5.2±1Vs. 3.4±1; p=0.000), prolonged duration of sensory block (129.7±14.9 Vs. 111.3±11; p=0.000) and long duration of postoperative analgesia (150.8±11.7Vs. 127.8±12.8; p=0.000). Conclusion: Addition of ketamine to intrathecal hyperbaric bupivacaine provides better intraoperative spinal block characteristics, stable haemodynamics and longer duration of postoperative analgesia.http://svimstpt.ap.nic.in/jcsr/oct-dec13_files/OA1.pdfKetamineIntrathecalAdjuvant
spellingShingle N. Hemanth
S. Geetha
Aloka Samantaray
M.H. Rao
M. Madhusudan
A comparative study of intrathecal ketamine as an additive to 0.5% hyperbaric bupivacaine for intrathecal anaesthesia
Journal of Clinical and Scientific Research
Ketamine
Intrathecal
Adjuvant
title A comparative study of intrathecal ketamine as an additive to 0.5% hyperbaric bupivacaine for intrathecal anaesthesia
title_full A comparative study of intrathecal ketamine as an additive to 0.5% hyperbaric bupivacaine for intrathecal anaesthesia
title_fullStr A comparative study of intrathecal ketamine as an additive to 0.5% hyperbaric bupivacaine for intrathecal anaesthesia
title_full_unstemmed A comparative study of intrathecal ketamine as an additive to 0.5% hyperbaric bupivacaine for intrathecal anaesthesia
title_short A comparative study of intrathecal ketamine as an additive to 0.5% hyperbaric bupivacaine for intrathecal anaesthesia
title_sort comparative study of intrathecal ketamine as an additive to 0 5 hyperbaric bupivacaine for intrathecal anaesthesia
topic Ketamine
Intrathecal
Adjuvant
url http://svimstpt.ap.nic.in/jcsr/oct-dec13_files/OA1.pdf
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