Fixed Dose versus Height-Adjusted Conventional Dose of Intrathecal Hyperbaric Bupivacaine for Caesarean Delivery: A Prospective, Double-Blinded Randomised Trial

The optimal intrathecal dose of local anaesthetic for caesarean section (CS) anaesthesia is still being debated. We performed a study to compare the effectiveness and safety of spinal anaesthesia with 12.5 mg of hyperbaric bupivacaine and a dosing regimen of conventional doses adjusted to parturient...

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Main Authors: Katarzyna Białowolska, Bartosz Horosz, Agnieszka Sękowska, Małgorzata Malec-Milewska
Format: Article
Language:English
Published: MDPI AG 2020-11-01
Series:Journal of Clinical Medicine
Subjects:
Online Access:https://www.mdpi.com/2077-0383/9/11/3600
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author Katarzyna Białowolska
Bartosz Horosz
Agnieszka Sękowska
Małgorzata Malec-Milewska
author_facet Katarzyna Białowolska
Bartosz Horosz
Agnieszka Sękowska
Małgorzata Malec-Milewska
author_sort Katarzyna Białowolska
collection DOAJ
description The optimal intrathecal dose of local anaesthetic for caesarean section (CS) anaesthesia is still being debated. We performed a study to compare the effectiveness and safety of spinal anaesthesia with 12.5 mg of hyperbaric bupivacaine and a dosing regimen of conventional doses adjusted to parturient height. One hundred and forty parturients scheduled for elective CS were enrolled. The fixed-dose group (FD) received a spinal block with 12.5 mg of hyperbaric bupivacaine with fentanyl, whereas the adjusted-dose group (AD) received a height-adjusted dose of bupivacaine (9–13 mg) with fentanyl. Sensory block ≥ T5 dermatome within 10 min and no need for supplementary analgesia were set as the composite primary outcome (success). Rates of successful blocks and complications were compared. Complete data were available for 134 cases. Spinal anaesthesia was successful in 58 out of 67 patients in the FD group and 57 out of 67 in the AD group (<i>p</i> > 0.05). Eight spinals in each group failed to produce a block ≥ T5 in 10 min, and one patient in the FD group and two in the AD group required i.v. analgesics despite sensory block ≥ T5. No differences were noted in terms of hypotension, bradycardia and nausea between the FD and AD groups. Compared to the height-adjusted dose regimen based on conventional doses of hyperbaric bupivacaine, the fixed dose regimen of 12.5 mg was equally effective and did not increase the risk of spinal block-related complications.
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spelling doaj.art-22ea0525db884e2682a168d194d9229b2023-11-20T20:12:50ZengMDPI AGJournal of Clinical Medicine2077-03832020-11-01911360010.3390/jcm9113600Fixed Dose versus Height-Adjusted Conventional Dose of Intrathecal Hyperbaric Bupivacaine for Caesarean Delivery: A Prospective, Double-Blinded Randomised TrialKatarzyna Białowolska0Bartosz Horosz1Agnieszka Sękowska2Małgorzata Malec-Milewska3Department of Anaesthesiology and Intensive Care, Medical Centre of Postgraduate Education, Orlowski Hospital, Ul. Czerniakowska 231, 00-416 Warsaw, PolandDepartment of Anaesthesiology and Intensive Care, Medical Centre of Postgraduate Education, Orlowski Hospital, Ul. Czerniakowska 231, 00-416 Warsaw, Poland2nd Department of Obstetrics and Gynaecology, Medical Centre of Postgraduate Education, Bielanski Hospital, Ul. Cegłowska 80, 01-809 Warsaw, PolandDepartment of Anaesthesiology and Intensive Care, Medical Centre of Postgraduate Education, Orlowski Hospital, Ul. Czerniakowska 231, 00-416 Warsaw, PolandThe optimal intrathecal dose of local anaesthetic for caesarean section (CS) anaesthesia is still being debated. We performed a study to compare the effectiveness and safety of spinal anaesthesia with 12.5 mg of hyperbaric bupivacaine and a dosing regimen of conventional doses adjusted to parturient height. One hundred and forty parturients scheduled for elective CS were enrolled. The fixed-dose group (FD) received a spinal block with 12.5 mg of hyperbaric bupivacaine with fentanyl, whereas the adjusted-dose group (AD) received a height-adjusted dose of bupivacaine (9–13 mg) with fentanyl. Sensory block ≥ T5 dermatome within 10 min and no need for supplementary analgesia were set as the composite primary outcome (success). Rates of successful blocks and complications were compared. Complete data were available for 134 cases. Spinal anaesthesia was successful in 58 out of 67 patients in the FD group and 57 out of 67 in the AD group (<i>p</i> > 0.05). Eight spinals in each group failed to produce a block ≥ T5 in 10 min, and one patient in the FD group and two in the AD group required i.v. analgesics despite sensory block ≥ T5. No differences were noted in terms of hypotension, bradycardia and nausea between the FD and AD groups. Compared to the height-adjusted dose regimen based on conventional doses of hyperbaric bupivacaine, the fixed dose regimen of 12.5 mg was equally effective and did not increase the risk of spinal block-related complications.https://www.mdpi.com/2077-0383/9/11/3600elective caesareanspinal anaesthesiahyperbaric bupivacainehypotension
spellingShingle Katarzyna Białowolska
Bartosz Horosz
Agnieszka Sękowska
Małgorzata Malec-Milewska
Fixed Dose versus Height-Adjusted Conventional Dose of Intrathecal Hyperbaric Bupivacaine for Caesarean Delivery: A Prospective, Double-Blinded Randomised Trial
Journal of Clinical Medicine
elective caesarean
spinal anaesthesia
hyperbaric bupivacaine
hypotension
title Fixed Dose versus Height-Adjusted Conventional Dose of Intrathecal Hyperbaric Bupivacaine for Caesarean Delivery: A Prospective, Double-Blinded Randomised Trial
title_full Fixed Dose versus Height-Adjusted Conventional Dose of Intrathecal Hyperbaric Bupivacaine for Caesarean Delivery: A Prospective, Double-Blinded Randomised Trial
title_fullStr Fixed Dose versus Height-Adjusted Conventional Dose of Intrathecal Hyperbaric Bupivacaine for Caesarean Delivery: A Prospective, Double-Blinded Randomised Trial
title_full_unstemmed Fixed Dose versus Height-Adjusted Conventional Dose of Intrathecal Hyperbaric Bupivacaine for Caesarean Delivery: A Prospective, Double-Blinded Randomised Trial
title_short Fixed Dose versus Height-Adjusted Conventional Dose of Intrathecal Hyperbaric Bupivacaine for Caesarean Delivery: A Prospective, Double-Blinded Randomised Trial
title_sort fixed dose versus height adjusted conventional dose of intrathecal hyperbaric bupivacaine for caesarean delivery a prospective double blinded randomised trial
topic elective caesarean
spinal anaesthesia
hyperbaric bupivacaine
hypotension
url https://www.mdpi.com/2077-0383/9/11/3600
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