A comparative evaluation of hyperbaric ropivacaine versus hyperbaric bupivacaine for elective surgery under spinal anesthesia

Background: Recently introduced ropivacaine is 40% less potent than bupivacaine. Ropivacaine made hyperbaric by the addition of dextrose is known to provide reliable spinal anesthesia (SA).This study was designed to compare the clinical efficacy of equal doses of hyperbaric 0.5% ropivacaine with 0.5...

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Main Authors: Kalpana R Kulkarni, Sunetra Deshpande, Ismail Namazi, Sunil Kumar Singh, Konark Kondilya
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2014-01-01
Series:Journal of Anaesthesiology Clinical Pharmacology
Subjects:
Online Access:http://www.joacp.org/article.asp?issn=0970-9185;year=2014;volume=30;issue=2;spage=238;epage=242;aulast=Kulkarni
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author Kalpana R Kulkarni
Sunetra Deshpande
Ismail Namazi
Sunil Kumar Singh
Konark Kondilya
author_facet Kalpana R Kulkarni
Sunetra Deshpande
Ismail Namazi
Sunil Kumar Singh
Konark Kondilya
author_sort Kalpana R Kulkarni
collection DOAJ
description Background: Recently introduced ropivacaine is 40% less potent than bupivacaine. Ropivacaine made hyperbaric by the addition of dextrose is known to provide reliable spinal anesthesia (SA).This study was designed to compare the clinical efficacy of equal doses of hyperbaric 0.5% ropivacaine with 0.5% bupivacaine for SA. Materials and Methods: Eighty American Society of Anesthesiologists grade I-II patients undergoing elective infraumbilical surgeries under SA were recruited and randomized to receive 3ml of hyperbaric ropivacaine 5mg/ml containing dextrose 83 mg/ml (by the addition of desired dose of 25% dextrose) in Group R or 3ml of hyperbaric bupivacaine 5mg/ml containing dextrose 80 mg/ml in Group B. Monitoring of vitals and observation for the block parameters were carried out. The data were presented as mean with a standard deviation and frequency with percentage. Statistical analysis was performed using InStat computer software with appropriate tests and P < 0.05 was considered to be significant. Results: Ropivacaine produced a slower onset of sensory block (ropivacaine 4.5 min; bupivacaine 3.2 min; P < 0.05) and the mean total duration of sensory block was significantly lesser (ropivacaine155 min; bupivacaine 190.5 min; P < 0.05). Patients in the ropivacaine Group R had significantly more rapid recovery from the motor blockade (ropivacaine120 min; bupivacaine 190 min; P < 0.05) and passed urine sooner than the patients in bupivacaine Group B (ropivacaine 257 min; bupivacaine 358 min; P < 0.05). Conclusion: Ropivacaine 15 mg in dextrose 8.3% provides reliable SA of shorter duration than bupivacaine 15 mg in 8% dextrose.
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spelling doaj.art-c1e351832dd84121968959ed497c60b22022-12-22T00:47:51ZengWolters Kluwer Medknow PublicationsJournal of Anaesthesiology Clinical Pharmacology0970-91852014-01-0130223824210.4103/0970-9185.130031A comparative evaluation of hyperbaric ropivacaine versus hyperbaric bupivacaine for elective surgery under spinal anesthesiaKalpana R KulkarniSunetra DeshpandeIsmail NamaziSunil Kumar SinghKonark KondilyaBackground: Recently introduced ropivacaine is 40% less potent than bupivacaine. Ropivacaine made hyperbaric by the addition of dextrose is known to provide reliable spinal anesthesia (SA).This study was designed to compare the clinical efficacy of equal doses of hyperbaric 0.5% ropivacaine with 0.5% bupivacaine for SA. Materials and Methods: Eighty American Society of Anesthesiologists grade I-II patients undergoing elective infraumbilical surgeries under SA were recruited and randomized to receive 3ml of hyperbaric ropivacaine 5mg/ml containing dextrose 83 mg/ml (by the addition of desired dose of 25% dextrose) in Group R or 3ml of hyperbaric bupivacaine 5mg/ml containing dextrose 80 mg/ml in Group B. Monitoring of vitals and observation for the block parameters were carried out. The data were presented as mean with a standard deviation and frequency with percentage. Statistical analysis was performed using InStat computer software with appropriate tests and P < 0.05 was considered to be significant. Results: Ropivacaine produced a slower onset of sensory block (ropivacaine 4.5 min; bupivacaine 3.2 min; P < 0.05) and the mean total duration of sensory block was significantly lesser (ropivacaine155 min; bupivacaine 190.5 min; P < 0.05). Patients in the ropivacaine Group R had significantly more rapid recovery from the motor blockade (ropivacaine120 min; bupivacaine 190 min; P < 0.05) and passed urine sooner than the patients in bupivacaine Group B (ropivacaine 257 min; bupivacaine 358 min; P < 0.05). Conclusion: Ropivacaine 15 mg in dextrose 8.3% provides reliable SA of shorter duration than bupivacaine 15 mg in 8% dextrose.http://www.joacp.org/article.asp?issn=0970-9185;year=2014;volume=30;issue=2;spage=238;epage=242;aulast=KulkarniHyperbaric bupivacaineropivacainespinal anesthesia
spellingShingle Kalpana R Kulkarni
Sunetra Deshpande
Ismail Namazi
Sunil Kumar Singh
Konark Kondilya
A comparative evaluation of hyperbaric ropivacaine versus hyperbaric bupivacaine for elective surgery under spinal anesthesia
Journal of Anaesthesiology Clinical Pharmacology
Hyperbaric bupivacaine
ropivacaine
spinal anesthesia
title A comparative evaluation of hyperbaric ropivacaine versus hyperbaric bupivacaine for elective surgery under spinal anesthesia
title_full A comparative evaluation of hyperbaric ropivacaine versus hyperbaric bupivacaine for elective surgery under spinal anesthesia
title_fullStr A comparative evaluation of hyperbaric ropivacaine versus hyperbaric bupivacaine for elective surgery under spinal anesthesia
title_full_unstemmed A comparative evaluation of hyperbaric ropivacaine versus hyperbaric bupivacaine for elective surgery under spinal anesthesia
title_short A comparative evaluation of hyperbaric ropivacaine versus hyperbaric bupivacaine for elective surgery under spinal anesthesia
title_sort comparative evaluation of hyperbaric ropivacaine versus hyperbaric bupivacaine for elective surgery under spinal anesthesia
topic Hyperbaric bupivacaine
ropivacaine
spinal anesthesia
url http://www.joacp.org/article.asp?issn=0970-9185;year=2014;volume=30;issue=2;spage=238;epage=242;aulast=Kulkarni
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