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ORIGINAL ARTICLE
Year : 2017  |  Volume : 11  |  Issue : 4  |  Page : 934-939

A comparative study of postoperative analgesia provided by ultrasound-guided transversus abdominis plane block using two concentrations of bupivacaine in patients undergoing inguinal hernia repair


1 Department of Critical Care Medicine, Mahatma Gandhi Medical College and Research Institute, Sri Balaji Vidyapeeth University, Puducherry, India
2 Department of Anaesthesiology, Mahatma Gandhi Medical College and Research Institute, Sri Balaji Vidyapeeth University, Puducherry, India
3 Department of Anaesthesiology, Sri Venkateshwaraa Medical College and Research Institute, Puducherry, India

Correspondence Address:
Dewan Roshan Singh
Department of Anaesthesiology, Mahatma Gandhi Medical College and Research Institute, Sri Balaji Vidyapeeth University, Pillaiyarkuppam, Puducherry - 607 402
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/aer.AER_84_17

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Background: Pain after open inguinal hernia surgery can be moderate to severe and is known to prolong hospital stay and delay return to normal daily activities. Settings: A randomized controlled trial conducted in the Department of Anesthesiology in a tertiary care hospital. Aims and Objectives: To compare the efficacy of postoperative analgesia provided by equal volumes of 0.125% and 0.25% bupivacaine administered in an ultrasound (US)-guided transversus abdominis plane (TAP) block in patients undergoing unilateral inguinal hernia repair. Materials and Methods: After obtaining Institutional Ethics Committee approval and informed consent, sixty patients posted for inguinal hernia repair were recruited. Randomization was done using a sealed envelope technique. Patients were divided into two groups; Group 0.125 received 20 ml of 0.125% bupivacaine and Group 0.25 received 20 ml of 0.25% bupivacaine through US-guided TAP block at the end of surgery. Visual analog scale (VAS) scores and duration of analgesia were recorded. Results: There was no significant difference in the VAS scores among both groups. The duration of analgesia provided by 0.25% bupivacaine was significantly longer than that provided by 0.125% (Group 0.125 - 355.67 ± 118.88 min and Group 0.25 - 635.73 ± 195.58 min; P < 0.05). No complications were noted in both groups. Conclusion: The duration of analgesia provided by 0.25% bupivacaine was significantly longer than that provided by 0.125% bupivacaine through US-guided TAP block in inguinal hernia repair.


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