Prabha R, Raman R. Quadratus lumborum block for patients undergoing percutaneous nephrolithotomy: A randomized controlled study.
Anesth Essays Res 2021;
15:174-178. [PMID:
35281368 PMCID:
PMC8916135 DOI:
10.4103/aer.aer_92_21]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 07/31/2021] [Accepted: 07/31/2021] [Indexed: 12/03/2022] Open
Abstract
Background:
Recent studies have supported the use of quadratus lumborum block (QLB) for postoperative analgesia for patients undergoing renal surgery.
Aims:
The aim was to study the efficacy of posterior QLB for postoperative analgesia in patients undergoing percutaneous nephrolithotomy (PCNL).
Settings and Design:
This trial was a hospital-based, randomized, double-blind, controlled, prospective study.
Materials and Methods:
Forty patients aged from 18 to 60 years, belonging to the American Society of Anesthesiologists physical status I–III and scheduled for unilateral PCNL under spinal anesthesia were administered ultrasound-guided posterior QLB with 30 ml of either 0.2% ropivacaine (Group Q) or normal saline (Group C) after the subarachnoid block. Duration of analgesia was the primary outcome variable.
Statistical Analysis Used:
Data were compiled in Microsoft Excel, and analyses were performed in SPSS (version 24.0.0.0; IBM, Armonk, New York, USA). Unpaired t-test, Mann–Whitney U test, and Fisher's exact test were used for the comparison of continuous, ordinal, and categorical data, respectively.
Results:
Duration of analgesia was significantly longer in Group Q (1167.10 ± 89.74 vs. 290.25 ± 47.38 min), as compared to Group C. Except at the end of the surgery, visual analog scale at rest and on movement was significantly lower till 20th h in Group Q. Patient satisfaction was better, and analgesic consumption was lower in Group Q. Side effects were similar in both groups.
Conclusions:
QLB provides good quality, and prolonged duration of postoperative analgesia compared to placebo for PCNL, but more large-scale studies are needed to recommend it for routine use.
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