Correlation of Vertebral Column Length and Abdominal Circumference with Subarachnoid Block Characteristics of Hyperbaric Ropivacaine for Infraumbilical Surgeries: A Single-arm Interventional Study
Introduction: Spinal anaesthesia is a neuraxial anaesthesia technique used for lower abdominal and lower limb surgeries. The spread of the intrathecally administered local anaesthetic drug during spinal anaesthesia may be affected by many factors. Aim: To evaluate the correlation between abdomina...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
JCDR Research and Publications Private Limited
2024-12-01
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| Series: | Journal of Clinical and Diagnostic Research |
| Subjects: | |
| Online Access: | https://www.jcdr.net/articles/PDF/20317/73629_CE[Ra1]_F(IS)_QC(NN_IS)_PF1(RI_SHU)_redo_PFA(SHU)_PN(IS).pdf |
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| Summary: | Introduction: Spinal anaesthesia is a neuraxial anaesthesia technique used for lower abdominal and lower limb surgeries. The spread of the intrathecally administered local anaesthetic drug during spinal anaesthesia may be affected by many factors.
Aim: To evaluate the correlation between abdominal girth and vertebral column length with the intrathecal spread of hyperbaric ropivacaine.
Materials and Methods: This prospective single-arm interventional study was conducted in the Department of Anaesthesia at Pt. BDS PGIMS Rohtak, Haryana, India from November 2022 to March 2024. A total of 100 patients of either sex, aged between 20 and 60 years, scheduled for infraumbilical surgeries under Subarachnoid Block (SAB), were included in this single-arm intervention study. Abdominal girth and vertebral column length of the enrolled patients were measured in sitting position. SAB was administered with 3 mL of 0.75% hyperbaric ropivacaine. Sensory and motor block assessments were conducted after the block. The highest sensory block level, time taken to achieve the highest sensory block level and Bromage score of 3, the time taken for two-segment regression and regression to Bromage score of 0 were recorded. Haemodynamic parameters and any complications were noted. Data was compiled and the correlation of vertebral column length and abdominal circumference with sensory and motor block characteristics was analysed at the end of the study. The Pearson’s correlation test was used to determine correlation and a p-value of <0.05 was considered statistically significant.
Results: Out of the 100 patients included in the study, 81% were male and 19% were female. The mean age, weight and height of the patients were 36 years, 67 kg and 169 cm, respectively. The mean vertebral column length and abdominal circumference of the patients were 61 cm and 83 cm. Abdominal circumference was significantly correlated with the maximum sensory level (the Pearson’s correlation coefficient was 0.680 with a p-value <0.05). However, no significant correlation was found between vertebral column length and the maximum sensory level achieved (the Pearson’s correlation coefficient was 0.75 with a p-value of 0.06). The time to achieve maximum sensory and motor levels and the time to regress from the maximum block level were also not correlated with abdominal circumference and vertebral column length (p-value >0.05).
Conclusion: Patients with larger abdominal circumference have more cephalad spread of intrathecal ropivacaine in non obstetric patients undergoing infraumbilical surgeries. However, the present study found no correlation between vertebral column length and any SAB characteristics. |
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| ISSN: | 2249-782X 0973-709X |