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Year : 2017  |  Volume : 11  |  Issue : 3  |  Page : 713-717

Relative efficacy of ultrasound-guided ilioinguinal-iliohypogastric nerve block versus transverse abdominis plane block for postoperative analgesia following lower segment cesarean section: A prospective, randomized observer-blinded trial

1 Department of Anaesthesiology, RVM Medical College, Medak, Telangana, India
2 Department of Anaesthesiology and Critical Care, Mahatma Gandhi Medical College and Research Institute, Sri Balaji Vidyapeeth University, Puducherry, India

Correspondence Address:
T Sivashanmugam
Department of Anaesthesiology and Critical Care, Mahatma Gandhi Medical College and Research Institute, Sri Balaji Vidyapeeth University, Puducherry - 607 402
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0259-1162.206855

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Background: Quality of postoperative analgesia after cesarean section makes difference to mother in child bonding, early ambulation, and discharge. Ilioinguinal iliohypogastric (ILIH) and transverse abdominis plane (TAP) block had been tried to reduce the opioid analgesics, but the relative efficacy is unknown. Hence, this study was designed to compare the efficacy of these two regional analgesic techniques in sparing postoperative rescue analgesic requirement following lower segment cesarean section (LSCS). Methods: Sixty patients who underwent LSCS were randomly allocated into two groups to receive either US-guided TAP block or ILIH nerve block using sealed envelope technique at the end of the surgery. In the postoperative ward, whenever patient complained of pain, pain nurse in-charge administered the rescue analgesics as per the study protocol. A blinded observer visited the patient at 0, 2, 4, 6, 8, 10, 12, and 24 h postoperative intervals and recorded the quality of pain relief and the amount of rescue analgesic consumed. Results: All patients in both the study groups required one dose of rescue analgesics in the form of injection diclofenac sodium 50 mg intravenously but subsequently 57% of patients did not require any further analgesics till 24 h in the TAP block group whereas in ILIH group, only 13% did not require further analgesics (P = 0.00), correspondingly the cumulative tramadol dose was significantly higher at all the time interval in the ILIH group when compared to the TAP group. Conclusion: Quality of postoperative analgesia provided by TAP block was superior to ILIH block following LSCS.

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