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Year : 2022  |  Volume : 23  |  Issue : 2  |  Page : 91-97

Comparison of ultrasound-guided transversus abdominis plane block and quadratus lumborum block for postoperative analgesia following laparoscopic living donor nephrectomy: A prospective randomized, double-blind study

1 Department of Anaesthesiology and Critical Care, Rabindranath Tagore International Institute of Cardiac Sciences, Kolkata, West Bengal, India
2 Department of Anaesthesiology and Perioperative Care, Ganga Medical Centre and Hospitals Pvt Ltd, Coimbatore, Tamil Nadu, India

Correspondence Address:
Dr. Tuhin Mistry
Department of Anaesthesiology and Perioperative Care, Ganga Medical Centre and Hospitals Pvt Ltd, Coimbatore, Tamil Nadu
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/TheIAForum.TheIAForum_34_22

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Background and Aims: The application of ultrasound (USG)-guided interfascial plane blocks in transplant anesthesia is expanding. This study evaluates and compares the postoperative analgesic efficacy of USG-guided transversus abdominis plane block (TAPB) and quadratus lumborum block (QLB) in adult individuals undergoing laparoscopic living donor nephrectomy (LLDN). Materials and Methods: A hundred donors of either sex, aged 30–60 years, scheduled to undergo LLDN were randomly allocated into two groups. After completion of the LLDN, USG-guided unilateral TAPB and QLB were performed in lateral position in Groups A (n = 48) and B (n = 48), respectively. A volume of 20 ml of 0.375% ropivacaine was administered in both groups. Postextubation donors were shifted to the postanesthesia care unit (PACU). Heart rate, systolic blood pressure, diastolic blood pressure, and numeric rating scale (NRS) scores were recorded on arrival at PACU at the time of discharge from PACU. Subsequently, the donor was shifted to the intensive care unit, and the vitals and NRS scores (static and dynamic) were monitored postoperatively on the 2nd, 6th, 12th, 18th, and 24th h. Duration of analgesia and the number of donors who needed rescue analgesia were also noted. All the donors were observed for any side effects and complications. P <0.05 was considered statistically significant. Results: The NRS score was significantly lower in Group B (QLB) than in Group A (TAPB). Duration of analgesia was significantly prolonged in Group B (11.34 ± 1.53 h) compared to Group A (9.05 ± 1.58 min). (P < 0.001) Conclusion: The QLB effectively prolonged the duration of analgesia, lowers pain scores, and decreases the requirement of rescue analgesia compared to the TAPB. Hence, the donors remain comfortable in the postoperative period without any potential side effects.

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