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Journal of Obstrectic Anaesthesia and Critical Care
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Year : 2020  |  Volume : 10  |  Issue : 1  |  Page : 21-25

A comparison of time to achieve T5 blockade in lateral versus sitting position during elective cesarean section under spinal anesthesia: A randomized control trial

Department of Anaesthesia and Critical Care, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India

Correspondence Address:
Dr. Nitu Puthenveettil
Department of Anaesthesia and Critical Care, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Kochi, Kerala
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/joacc.JOACC_47_19

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Context: Spinal anesthesia is the preferred anesthetic technique for cesarean section. Lateral and sitting positions are commonly used for performing subarachnoid block in parturients. Maternal positioning affects the spread of local anesthetic drugs and affects the onset and level of block. Faster onset of block is associated with hemodynamic changes having detrimental effects in parturients. Aims: The aim of our study is to evaluate the effectiveness of two maternal positions – lateral and sitting. Materials and Methods: This prospective randomized control study was conducted on 100 parturients undergoing elective cesarean section under spinal anesthesia. They were randomly assigned into two groups. Group L received spinal anesthesia in lateral and group S in sitting position. Time to achieve T5 blockade, hemodynamics, motor blockade, fetal pH, and Apgar score were noted. Independent sample 't' test, Chi-square test, and paired t test were used for statistical analysis. Results: Time to achieve T5 dermatomal level was less in group L which was statistically significant (2.60 ± 0.535 vs. 4.34 ± 0.745 min, P < 0.001). Number of attempts required and time taken for giving spinal was significantly more in group L. The drop in mean arterial pressure and requirement of phenylephrine was more in lateral position. Conclusion: Adoption of sitting position while performing subarachnoid block for cesarean section was found to be superior to lateral position in view of better hemodynamic stability, need for fewer attempts, and better maternal comfort, though time to achieve T5 block was longer.

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