Correlation between spinal column length and the spread of subarachnoid hyperbaric bupivacaine in the term parturient

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Abstract

Background: Anaesthetists frequently tailor the subarachnoid local anaesthetic dosage according to parturient height to achieve sensory blockade up to the T4 dermatome for lower segment Caesarean sections (LSCSs). Studies that have been conducted have demonstrated that height does not affect the spread of subarachnoid hyperbaric bupivacaine. This study aimed to find the correlation between the spinal column length of term parturients and the highest level of sensory blockade after spinal anaesthesia. Methods: The authors studied 60 singleton term parturients of American Society of Anesthesiologists (ASA) physical status I or II scheduled for elective LSCSs. The length of the spinal column was taken as an average of three measurements from the C7 spinous process to the sacral hiatus in a sitting upright and facing forward position. Spinal anaesthesia was given by administering 1.8 ml of 0.5% hyperbaric bupivacaine and 25 μg fentanyl through the L3/L4 or L4/L5 intervertebral space. The level of sensory blockade was assessed using pin-prick testing for pain sensation. Linear regression analysis was used to analyse the correlation; R < 0.25 indicates no correlation with the level of significance being < 0.05. Results: The spinal column lengths measured were between 42.2 cm and 85.8 cm (median: 58.5 cm). Spinal anaesthesia given was adequate for all patients, with the highest levels of anaesthesia ranging from T8 to T2 with sensory levels between T6 and T4. The parturients' spinal column length showed no correlation with the highest level of sensory blockade achieved, namely R = 0.11. Conclusions: The study found no correlation between the parturients' spinal column length and the highest level of sensory blockade achieved.

Original languageEnglish
Pages (from-to)30-33
Number of pages4
JournalSouthern African Journal of Anaesthesia and Analgesia
Volume16
Issue number3
Publication statusPublished - 2010

Fingerprint

Bupivacaine
Spine
Parturition
Spinal Anesthesia
Cesarean Section
Fentanyl
Local Anesthetics
Linear Models
Anesthesia
Regression Analysis
Pain

Keywords

  • Hyperbaric bupivacaine
  • Lower segment Caesarean section (LSCS)
  • Parturients
  • Spinal anaesthesia
  • Spinal column

ASJC Scopus subject areas

  • Anesthesiology and Pain Medicine

Cite this

@article{679c61fae407431e82b124e02b0c80b7,
title = "Correlation between spinal column length and the spread of subarachnoid hyperbaric bupivacaine in the term parturient",
abstract = "Background: Anaesthetists frequently tailor the subarachnoid local anaesthetic dosage according to parturient height to achieve sensory blockade up to the T4 dermatome for lower segment Caesarean sections (LSCSs). Studies that have been conducted have demonstrated that height does not affect the spread of subarachnoid hyperbaric bupivacaine. This study aimed to find the correlation between the spinal column length of term parturients and the highest level of sensory blockade after spinal anaesthesia. Methods: The authors studied 60 singleton term parturients of American Society of Anesthesiologists (ASA) physical status I or II scheduled for elective LSCSs. The length of the spinal column was taken as an average of three measurements from the C7 spinous process to the sacral hiatus in a sitting upright and facing forward position. Spinal anaesthesia was given by administering 1.8 ml of 0.5{\%} hyperbaric bupivacaine and 25 μg fentanyl through the L3/L4 or L4/L5 intervertebral space. The level of sensory blockade was assessed using pin-prick testing for pain sensation. Linear regression analysis was used to analyse the correlation; R < 0.25 indicates no correlation with the level of significance being < 0.05. Results: The spinal column lengths measured were between 42.2 cm and 85.8 cm (median: 58.5 cm). Spinal anaesthesia given was adequate for all patients, with the highest levels of anaesthesia ranging from T8 to T2 with sensory levels between T6 and T4. The parturients' spinal column length showed no correlation with the highest level of sensory blockade achieved, namely R = 0.11. Conclusions: The study found no correlation between the parturients' spinal column length and the highest level of sensory blockade achieved.",
keywords = "Hyperbaric bupivacaine, Lower segment Caesarean section (LSCS), Parturients, Spinal anaesthesia, Spinal column",
author = "{Wan Mat}, {Wan Rahiza} and {Abdul Rahman}, Raha and {Muhd Helmi}, A. and {Md Nor}, Nadia and Muhammad Maaya and {Azmil Farid}, Z. and Azarinah Izaham and {Md Zain}, Jaafar",
year = "2010",
language = "English",
volume = "16",
pages = "30--33",
journal = "Southern African Journal of Anaesthesia and Analgesia",
issn = "2220-1181",
publisher = "In House Publications",
number = "3",

}

TY - JOUR

T1 - Correlation between spinal column length and the spread of subarachnoid hyperbaric bupivacaine in the term parturient

AU - Wan Mat, Wan Rahiza

AU - Abdul Rahman, Raha

AU - Muhd Helmi, A.

AU - Md Nor, Nadia

AU - Maaya, Muhammad

AU - Azmil Farid, Z.

AU - Izaham, Azarinah

AU - Md Zain, Jaafar

PY - 2010

Y1 - 2010

N2 - Background: Anaesthetists frequently tailor the subarachnoid local anaesthetic dosage according to parturient height to achieve sensory blockade up to the T4 dermatome for lower segment Caesarean sections (LSCSs). Studies that have been conducted have demonstrated that height does not affect the spread of subarachnoid hyperbaric bupivacaine. This study aimed to find the correlation between the spinal column length of term parturients and the highest level of sensory blockade after spinal anaesthesia. Methods: The authors studied 60 singleton term parturients of American Society of Anesthesiologists (ASA) physical status I or II scheduled for elective LSCSs. The length of the spinal column was taken as an average of three measurements from the C7 spinous process to the sacral hiatus in a sitting upright and facing forward position. Spinal anaesthesia was given by administering 1.8 ml of 0.5% hyperbaric bupivacaine and 25 μg fentanyl through the L3/L4 or L4/L5 intervertebral space. The level of sensory blockade was assessed using pin-prick testing for pain sensation. Linear regression analysis was used to analyse the correlation; R < 0.25 indicates no correlation with the level of significance being < 0.05. Results: The spinal column lengths measured were between 42.2 cm and 85.8 cm (median: 58.5 cm). Spinal anaesthesia given was adequate for all patients, with the highest levels of anaesthesia ranging from T8 to T2 with sensory levels between T6 and T4. The parturients' spinal column length showed no correlation with the highest level of sensory blockade achieved, namely R = 0.11. Conclusions: The study found no correlation between the parturients' spinal column length and the highest level of sensory blockade achieved.

AB - Background: Anaesthetists frequently tailor the subarachnoid local anaesthetic dosage according to parturient height to achieve sensory blockade up to the T4 dermatome for lower segment Caesarean sections (LSCSs). Studies that have been conducted have demonstrated that height does not affect the spread of subarachnoid hyperbaric bupivacaine. This study aimed to find the correlation between the spinal column length of term parturients and the highest level of sensory blockade after spinal anaesthesia. Methods: The authors studied 60 singleton term parturients of American Society of Anesthesiologists (ASA) physical status I or II scheduled for elective LSCSs. The length of the spinal column was taken as an average of three measurements from the C7 spinous process to the sacral hiatus in a sitting upright and facing forward position. Spinal anaesthesia was given by administering 1.8 ml of 0.5% hyperbaric bupivacaine and 25 μg fentanyl through the L3/L4 or L4/L5 intervertebral space. The level of sensory blockade was assessed using pin-prick testing for pain sensation. Linear regression analysis was used to analyse the correlation; R < 0.25 indicates no correlation with the level of significance being < 0.05. Results: The spinal column lengths measured were between 42.2 cm and 85.8 cm (median: 58.5 cm). Spinal anaesthesia given was adequate for all patients, with the highest levels of anaesthesia ranging from T8 to T2 with sensory levels between T6 and T4. The parturients' spinal column length showed no correlation with the highest level of sensory blockade achieved, namely R = 0.11. Conclusions: The study found no correlation between the parturients' spinal column length and the highest level of sensory blockade achieved.

KW - Hyperbaric bupivacaine

KW - Lower segment Caesarean section (LSCS)

KW - Parturients

KW - Spinal anaesthesia

KW - Spinal column

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JO - Southern African Journal of Anaesthesia and Analgesia

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