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      Continuous quadratus lumborum type II block in partial nephrectomy Translated title: Bloqueio do quadrado lombar tipo II contínuo para analgesia pós-operatória de nefrectomia parcial

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          Abstract

          Background and objectives

          Quadratus lumborum block was first described in 2007 and currently there are descriptions of its achievement through four different injection points. This blockage provides abdominal wall and visceral analgesia, and one of its mechanisms is the dispersion of the local anesthetic into the paravertebral space. We describe the performance of a continuous quadratus lumborum type II block for postoperative analgesia in a partial nephrectomy.

          Case report

          A 64-year-old woman, scheduled for partial left laparoscopic nephrectomy. During the procedure, due to technical difficulties, an incision was made in the left flank to facilitate the surgical approach. In the early postoperative period, a continuous quadratus lumborum type II block was performed using ultrasonography as part of the multimodal analgesic strategy. Initially, 20 ml of 0.2% ropivacaine was administered and 3 cm of catheter were introduced into the interfascial space. Subsequently, a continuous infusion of 5.2 mL.h −1 of 0.2% ropivacaine was given for 48 hours. In the first 24 postoperative hours, the patient reported no pain at rest or on movement. In the following 24 h, she was free of pain at rest and only a slight pain (2/10) on movement.

          Conclusions

          Continuous quadratus lumborum type II block was an effective postoperative analgesic option. Blocking of somatic nerves and visceral afferent pathways provided abdominal and visceral wall analgesia, allowing the reduction of opioid consumption. We consider relevant to explore the analgesic capacity of the quadratus lumborum block and its different approaches, as well as the possibility of it becoming an alternative in patients scheduled for kidney surgery.

          Resumo

          Justificativa e objetivos

          O bloqueio do quadrado lombar foi descrito pela primeira vez em 2007 e atualmente existem descrições da sua realização através de quatro pontos de injeção. Esse bloqueio promove analgesia da parede abdominal e analgesia visceral e um de seus mecanismos é a dispersão do anestésico local para o espaço paravertebral. Descrevemos a realização do bloqueio do quadrado lombar tipo II contínuo para analgesia pós-operatória numa nefrectomia parcial.

          Relato de caso

          Mulher de 64 anos, agendada para nefrectomia parcial à esquerda por via laparoscópica. Durante o procedimento, por dificuldades técnicas, foi feita uma incisão no flanco esquerdo para facilitar a abordagem cirúrgica. No pós-operatório imediato, fez-se o bloqueio do quadrado lombar tipo II contínuo, recorrendo-se a ultrassonografia, como parte da estratégia analgésica multimodal. Inicialmente foram administrados 20 ml de ropivacaína 0,2% e introduzidos 3 cm de cateter no espaço interfascial. Posteriormente, colocou-se uma perfusão contínua de 5,2 mL.h -1 de ropivacaína 0,2% durante 48 horas. Nas primeiras 24 horas de pós-operatório, a paciente não referiu dor em repouso ou com movimento. Nas 24 horas seguintes, manteve-se sem dor em repouso e apenas com dor ligeira (2/10) com o movimento.

          Conclusões

          A realização do bloqueio quadrado lombar tipo II contínuo foi uma opção analgésica pós-operatória eficaz. O bloqueio de nervos somáticos e das vias aferentes viscerais promoveu analgesia da parede abdominal e visceral, permitiu reduzir o consumo de opioides. Consideramos relevante explorar a capacidade analgésica do bloqueio do quadrado lombar e suas diferentes abordagens, bem como a possibilidade de se tornar uma opção em doentes propostos para cirurgia renal.

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          Most cited references6

          • Record: found
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          Quadratus lumborum block for postoperative pain after caesarean section: A randomised controlled trial.

          Effective postoperative analgesia after caesarean section is important because it enables early ambulation and facilitates breast-feeding. Several case reports have shown that local anaesthetic injection around the quadratus lumborum muscle is effective in providing pain relief after various abdominal operations and in patients with chronic pain. The quadratus lumborum block (QLB) is performed in close proximity to the surface and uses a fascial compartment path to extend the distribution of local anaesthesia into the posterior abdominal wall and paravertebral space. This central effect can be of vital importance when managing the visceral pain after caesarean section.
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            Ultrasound-Guided Quadratus Lumborum Block: An Updated Review of Anatomy and Techniques

            Purpose of Review. Since the original publication on the quadratus lumborum (QL) block, the technique has evolved significantly during the last decade. This review highlights recent advances in various approaches for administering the QL block and proposes directions for future research. Recent Findings. The QL block findings continue to become clearer. We now understand that the QL block has several approach methods (anterior, lateral, posterior, and intramuscular) and the spread of local anesthetic varies with each approach. In particular, dye injected using the anterior QL block approach spread to the L1, L2, and L3 nerve roots and within psoas major and QL muscles. Summary. The QL block is an effective analgesic tool for abdominal surgery. However, the best approach is yet to be determined. Therefore, the anesthetic spread of the several QL blocks must be made clear.
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              Ultrasound-guided continuous quadratus lumborum block for postoperative analgesia in a pediatric patient.

              Quadratus lumborum block is a recently introduced variation of transversus abdominis plane block. In this report, we describe the use of ultrasound-guided continuous quadratus lumborum block for postoperative analgesia in a 7-year-old child scheduled to undergo radical nephrectomy (left-sided) for Wilms tumor. The result was excellent postoperative analgesia and minimal requirement for rescue analgesics. The modification described may allow easier placement of a catheter for continuous infusion of local anesthetic.
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                Author and article information

                Contributors
                Journal
                Braz J Anesthesiol
                Braz J Anesthesiol
                Brazilian Journal of Anesthesiology
                Elsevier
                0104-0014
                2352-2291
                17 August 2018
                Nov-Dec 2018
                17 August 2018
                : 68
                : 6
                : 653-656
                Affiliations
                [0005]Centro Hospitalar de Trás-os-Montes e Alto Douro, Departamento de Anestesiologia e Terapêutica da Dor, Vila Real, Portugal
                Author notes
                [* ]Corresponding author. ritagraca.235@ 123456gmail.com
                Article
                S0104-0014(18)30112-X
                10.1016/j.bjane.2018.03.003
                9391791
                29784431
                ada38079-e4e0-4ea1-a82f-b929c6f5bc96
                © 2018 Sociedade Brasileira de Anestesiologia. Published by Elsevier Editora Ltda.

                This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

                History
                : 8 May 2017
                : 31 March 2018
                Categories
                Clinical Information

                partial nephrectomy,quadratus lumborum type ii continuous,postoperative analgesia,ultrasonography,nefrectomia parcial,quadrado lombar tipo ii contínuo,analgesia pós-operatória,ultrassonografia

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