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      Observation of the analgesic effect of superficial or deep anterior serratus plane block on patients undergoing thoracoscopic lobectomy

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          Abstract

          The effectiveness of anterior serratus plane block in postoperative analgesia of thoracic surgery is beginning to emerge. Currently, there are 2 methods of anterior serratus plane block: deep serratus plane block (DSPB) and superficial serratus plane block (SSPB). In clinical practice, there is no an unified view regarding the advantages and disadvantages between 2 methods. This study aimed to observe and compare the analgesic effects of 2 methods on patients undergoing thoracoscopic lobectomy, in order to provide some suggestions for anesthesiologists when they choose anterior serratus plane block to perform postoperative analgesia for patients.

          Patients were randomly divided into 3 groups (21 patients/group):

          • 1.

            general anesthesia group (P group);

          • 2.

            combined general anesthesia and SSPB group (S group), and

          • 3.

            combined general anesthesia and DSPB group (D group).

          The patients in groups S and D received 0.4 ml/kg of 0.375% ropivacaine for ultrasound-guided block after surgery. Postoperatively, flurbiprofen was used for rescue analgesia.

          Visual analog scale (VAS) pain scores were recorded at 6 hours, 12 hours, and 24 hours after surgery, and rescue analgesia, post-operative nausea, and vomiting were reported within 24 hours after surgery. At 6 hours, 12 hours, and 24 hours, the VAS scores and the rescue analgesia rates in groups S and D were significantly lower than those in group P (all P < .001). With prolonging time, the VAS in group D was significantly increased by 0.11 per hour as compared with that of group P ( P < .0001); VAS in group D was significantly increased by 0.12 per hour as compared with that of group S ( P < .0001).

          Ultrasound-guided anterior serratus plane block can provide adequate analgesia for patients undergoing thoracoscopy lobectomy. SSPB can significantly improve VAS scores as compared to DSPB at 24 hours.

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          Most cited references26

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          Serratus plane block: a novel ultrasound-guided thoracic wall nerve block.

          We present a novel ultrasound-guided regional anaesthetic technique that may achieve complete paraesthesia of the hemithorax. This technique may be a viable alternative to current regional anaesthetic techniques such as thoracic paravertebral and central neuraxial blockade, which can be technically more challenging and have a higher potential side-effect profile. We performed the serratus block at two different levels in the midaxillary line on four female volunteers. We recorded the degree of paraesthesia obtained and performed fat-suppression magnetic resonance imaging and three-dimensional reconstructions of the spread of local anaesthetic in the serratus plane. All volunteers reported an effective block that provided long-lasting paraesthesia (750-840 min). There were no side-effects noted in this initial descriptive study. While these are preliminary findings, and must be confirmed in a clinical trial, they highlight the potential for the serratus plane block to provide analgesia following surgery on the thoracic wall. We suggest that this novel approach appears to be safe, effective, and easy to perform, and is associated with a low risk of side-effects.
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            A systematic review of randomized trials evaluating regional techniques for postthoracotomy analgesia.

            Thoracotomy induces severe postoperative pain and impairment of pulmonary function, and therefore regional analgesia has been intensively studied in this procedure. Thoracic epidural analgesia is commonly considered the "gold standard" in this setting; however, evaluation of the evidence is needed to assess the comparative benefits of alternative techniques, guide clinical practice and identify areas requiring further research. In this systematic review of randomized trials we evaluated thoracic epidural, paravertebral, intrathecal, intercostal, and interpleural analgesic techniques, compared to each other and to systemic opioid analgesia, in adult thoracotomy. Postoperative pain, analgesic use, and complications were analyzed. Continuous paravertebral block was as effective as thoracic epidural analgesia with local anesthetic (LA) but was associated with a reduced incidence of hypotension. Paravertebral block reduced the incidence of pulmonary complications compared with systemic analgesia, whereas thoracic epidural analgesia did not. Thoracic epidural analgesia was superior to intrathecal and intercostal techniques, although these were superior to systemic analgesia; interpleural analgesia was inadequate. Either thoracic epidural analgesia with LA plus opioid or continuous paravertebral block with LA can be recommended. Where these techniques are not possible, or are contraindicated, intrathecal opioid or intercostal nerve block are recommended despite insufficient duration of analgesia, which requires the use of supplementary systemic analgesia. Quantitative meta-analyses were limited by heterogeneity in study design, and subject numbers were small. Further well designed studies are required to investigate the optimum components of the epidural solution and to rigorously evaluate the risks/benefits of continuous infusion paravertebral and intercostal techniques compared with thoracic epidural analgesia.
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              Erector spinae plane block as an alternative to epidural analgesia for post-operative analgesia following video-assisted thoracoscopic surgery: A case study and a literature review on the spread of local anaesthetic in the erector spinae plane

              Post-operative pain after minimally invasive video-assisted thoracoscopic surgery (VATS) in adults is commonly managed with oral and parenteral opioids and invasive regional techniques such as thoracic epidural blockade. Emerging research has shown that the novel erector spinae plane (ESP) block, can be employed as a simple and safe alternative analgesic technique for acute post-surgical, post-traumatic and chronic neuropathic thoracic pain in adults. We illustrate this by presenting a paediatric case of VATS, in which an ESP block provided better analgesia, due to greater dermatomal coverage, as well as reduced side-effects when compared with a thoracic epidural that had previously been employed on the same patient for a similar procedure on the opposite side.
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                Author and article information

                Journal
                Medicine (Baltimore)
                Medicine (Baltimore)
                MEDI
                Medicine
                Lippincott Williams & Wilkins (Hagerstown, MD )
                0025-7974
                1536-5964
                22 January 2021
                22 January 2021
                : 100
                : 3
                : e24352
                Affiliations
                [a ]Department of Anesthesiology, Intensive Care Medicine and Pain Medicine, the First Affiliated Hospital of Soochow University, Suzhou
                [b ]Department of Anesthesiology
                [c ]Department of Cardiology, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China.
                Author notes
                []Correspondence: Jianping Yang, Department of Anesthesiology, Intensive Care Medicine and Pain Medicine, the First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu, China (e-mail: yangjianpingsdyfy@ 123456163.com ).
                Article
                MD-D-20-01837 24352
                10.1097/MD.0000000000024352
                7837840
                33546068
                5c6634a1-043c-4ed8-a8b1-e6a7570f8e79
                Copyright © 2021 the Author(s). Published by Wolters Kluwer Health, Inc.

                This is an open access article distributed under the Creative Commons Attribution License 4.0 (CCBY), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. http://creativecommons.org/licenses/by/4.0

                History
                : 28 February 2020
                : 22 November 2020
                : 22 December 2020
                Funding
                Funded by: Changzhou Sci &amp; Tech Program
                Award ID: CJ20189017
                Award Recipient : Not Applicable
                Categories
                3300
                Research Article
                Observational Study
                Custom metadata
                TRUE

                deep anterior serratus plane block,superficial anterior serratus plane block,thoracoscopic surgery,ultrasound guidance

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