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A Comparative Study of Plain and Hyperbaric Solutions of Bupivacaine HCl During Spinal Anaesthesia

D. Srinivasa Naik, Associate Professor, Gandhi Medical College, Secunderabad, Telangana 500003, India. , K. Ravi Kumar1 , D. Srinivasa Naik2

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Indian Journal of Anesthesia and Analgesia 6(1):p 61-66, Jan-Feb 2019. | DOI: http://dx.doi.org/10.21088/ijaa.2349.8471.6119.8

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K. Ravi Kumar & D. Srinivasa Naik. A Comparative Study of Plain and Hyperbaric Solutions of Bupivacaine HCl During Spinal Anaesthesia. Indian J Anesth Analg. 2019;6(1):61-66.

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Received : N/A         Accepted : N/A          Published : N/A

Abstract

Background: Spinal anesthesia is often used for both elective and emergency surgeries. Anesthesia-related mortality is decreased when general anesthesia is avoided. Aim: To compare the anaesthetic behaviour and haemodynamic consequences produced by the intrathecal injections of plain and hyperbaric solutions of Bupivacaine with the patients in supine horizontal position. Materials and methods: Sixty patients of ASA I – II were divided into 2 groups of 30 each. Group-A was given 3 ml. of -0.5% plain Bupivacaine sub arachnoidally whereas Group-B was given 3 ml. of 0.5% hyperbaric Bupivacaine. Results: It was found that extent of sensory blockade was much higher in Group-B as compared to Group-A. The degree of motor blockade was also much more intense in Group-B as compared to Group-A. The duration of analgesia was more in Group-A as compared to Group-B, but the time onset of analgesia was faster in Group-B (hyperbaric). Haemodynamically patients in Group-A were stable due to lesser extent of sympathetic blockade when compared to patients in Group-B. Conclusion: Plain Bupivacaine gives a lesser cephalad spread and can be effectively used for lower limb surgeries, it has to be used with caution for lower abdominal surgery as the spread is relatively unpredictable. 

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K. Ravi Kumar & D. Srinivasa Naik. A Comparative Study of Plain and Hyperbaric Solutions of Bupivacaine HCl During Spinal Anaesthesia. Indian J Anesth Analg. 2019;6(1):61-66.

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DOI: http://dx.doi.org/10.21088/ijaa.2349.8471.6119.8

Keywords

Bupivacaine; Lower abdominal surgery; Haemodynamic consequences.

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