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Xu X, Xie YX, Zhang M, Du JH, He JX, Hu LH. Comparison of Thoracoscopy-Guided Thoracic Paravertebral Block and Ultrasound-Guided Thoracic Paravertebral Block in Postoperative Analgesia of Thoracoscopic Lung Cancer Radical Surgery: A Randomized Controlled Trial. Pain Ther 2024; 13:577-588. [PMID: 38592611 PMCID: PMC11111614 DOI: 10.1007/s40122-024-00593-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 03/11/2024] [Indexed: 04/10/2024] Open
Abstract
INTRODUCTION Ultrasound-guided thoracic paravertebral block (UTPB) is widely used for postoperative analgesia in thoracic surgery. However, it has many disadvantages. Thoracoscopy-guided thoracic paravertebral block (TTPB) is a new technique for thoracic paravertebral block (TPB). In this study, we compared the use of TTPB and UTPB for pain management after thoracoscopic radical surgery for lung cancer. METHODS In total, 80 patients were randomly divided 1:1 into the UTPB group and the TTPB group. The surgical time of TPB, the success rate of the first puncture, block segment range, visual analog scale (VAS) scores at 2, 6, 12, 24, and 48 h post operation, and the incidence of postoperative adverse reactions were compared between the two groups. RESULTS The surgical time of TPB was significantly shorter in the TTPB group than in the UTPB group (2.2 ± 0.3 vs. 5.7 ± 1.7 min, t = - 12.411, P < 0.001). The success rate of the first puncture and the sensory block segment were significantly higher in the TTPB group than in the UTPB group (100% vs. 76.9%, χ2 = 8.309, P < 0.001; 6.5 ± 1.2 vs. 5.1 ± 1.3 levels, t = - 5.306, P < 0.001, respectively). The VAS scores were significantly higher during rest and coughing at 48 h post operation than at 2, 6, 12, and 24 h post operation in the TTPB group. The VAS scores were significantly lower during rest and coughing at 12 and 24 h post operation in the TTPB group than in the UTPB group (rest: 2.5 ± 0.4 vs. 3.4 ± 0.6, t = 7.325, P < 0.001; 2.5 ± 0.5 vs. 3.5 ± 0.6, t = 7.885, P < 0.001; coughing: 3.4 ± 0.6 vs. 4.2 ± 0.7, t = 5.057, P < 0.001; 3.4 ± 0.6 vs. 4.2 ± 0.8, t = 4.625, P < 0.001, respectively). No significant difference was observed in terms of postoperative adverse reactions between the two groups. CONCLUSIONS Compared with UTPB, TTPB shows advantages, such as simpler and more convenient surgery, shorter surgical time, a higher success rate of the first puncture, wider block segments, and superior analgesic effect. TTPB can effectively reduce postoperative pain due to thoracoscopic lung cancer radical surgery. TRIAL REGISTRATION https://www.chictr.org.cn , identifier ChiCTR2300072005, prospectively registered on 31/05/2023.
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Affiliation(s)
- Xia Xu
- Department of Anesthesiology, The Affiliated Lihuili Hospital of Ningbo University, No. 57 Xingning Road, Ningbo, 315040, People's Republic of China
| | - Ying-Xin Xie
- Department of Anesthesiology, The Affiliated Lihuili Hospital of Ningbo University, No. 57 Xingning Road, Ningbo, 315040, People's Republic of China
| | - Meng Zhang
- Department of Anesthesiology, The Affiliated Lihuili Hospital of Ningbo University, No. 57 Xingning Road, Ningbo, 315040, People's Republic of China
| | - Jian-Hui Du
- Department of Anesthesiology, The Affiliated Lihuili Hospital of Ningbo University, No. 57 Xingning Road, Ningbo, 315040, People's Republic of China
| | - Jin-Xian He
- Department of Thoracic Surgery, The Affiliated Lihuili Hospital of Ningbo University, No. 57 Xingning road, Ningbo, 315040, People's Republic of China
| | - Li-Hong Hu
- Department of Anesthesiology, The Affiliated Lihuili Hospital of Ningbo University, No. 57 Xingning Road, Ningbo, 315040, People's Republic of China.
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Wang LF, Feng HX, Shi YH, Li Y, Zheng MT, Bu T, Zhang ZR. Protocol for a randomised controlled trial: optimisation of perioperative analgesia protocol for uniportal video-assisted thoracoscopic surgery. BMJ Open 2024; 14:e079434. [PMID: 38569709 PMCID: PMC10989176 DOI: 10.1136/bmjopen-2023-079434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 03/13/2024] [Indexed: 04/05/2024] Open
Abstract
INTRODUCTION Postoperative pain after thoracic surgery impairs patients' quality of life and increases the incidence of respiratory complications. Optimised analgesia strategies include minimally invasive incisions, regional analgesia and early chest tube removal. However, little is known about the optimal analgesic regimen for uniportal video-assisted thoracoscopic surgery (uVATS). METHODS AND ANALYSIS We will conduct a single-centre, prospective, single-blind, randomised trial. The effects of postoperative analgesia will be tested using thoracic paravertebral block (PVB) in combination with patient-controlled intravenous analgesia (PVB+PCIA), erector spinae plane block (ESPB) in combination with patient-controlled intravenous analgesia (ESPB+PCIA) or PCIA alone; 102 patients undergoing uVATS will be enrolled in this study. Patients will be randomly assigned to the PVB group (30 mL of 0.33% ropivacaine with dexamethasone), ESPB group (40 mL of 0.25% ropivacaine with dexamethasone) or control groups. PCIA with sufentanil will be administered to all patients after surgery. The primary outcome will be total opioid consumption after surgery. Secondary outcomes include postoperative pain score; postoperative chronic pain at rest and during coughing; sensations of touch and pain in the chest wall, non-opioid analgesic consumption; length of stay; ambulation time, the total cost of hospitalisation and long-term postoperative analgesia. Adverse reactions to analgesics and adverse events related to the regional blocks will also be recorded. The statisticians will be blinded to the group allocation. Comparison of the continuous data among the three groups will be performed using a one-way analysis of variance to assess differences among the means. ETHICS AND DISSEMINATION The results will be published in patient education courses, academic conferences and peer-reviewed journals. TRIAL REGISTRATION NUMBER NCT06016777.
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Affiliation(s)
- Li Fang Wang
- Anesthesiology, China-Japan Friendship Hospital, Beijing, China
| | - Hong Xiang Feng
- Department of Thoracic Surgery, China-Japan Friendship Hospital, Beijing, China
| | - Yu Hui Shi
- Department of Thoracic Surgery, China-Japan Friendship Hospital, Beijing, China
| | - Yan Li
- Anesthesiology, China-Japan Friendship Hospital, Beijing, China
- China-Japan Friendship Hospital, Beijing, China
| | - Meng Tao Zheng
- Anesthesiology, China-Japan Friendship Hospital, Beijing, China
| | - Tegeleqi Bu
- Department of Anesthesiology, Peking University First Hospital, Beijing, Xicheng District, China
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Zeng W, Zhang J, Huang L, Tang Z. Analgesic effect of thoracic paravertebral block on patients undergoing thoracoscopic lobectomy under general anesthesia. Pak J Med Sci 2023; 39:1774-1778. [PMID: 37936771 PMCID: PMC10626110 DOI: 10.12669/pjms.39.6.7937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 03/30/2023] [Accepted: 07/08/2023] [Indexed: 11/09/2023] Open
Abstract
Objective To investigate the analgesic effect of thoracic paravertebral block (TPVB) in patients undergoing thoracoscopic lobectomy under general anesthesia (GA). Methods Clinical records of 82 patients who underwent thoracoscopic lobectomy under GA from October 2021 to October 2022 in the General Hospital of Southern Theater Command were retrospectively analyzed. The patients were divided into two groups according to the method of anesthesia used: general anesthesia group (Group-G, n=37), and TPVB plus GA group (Group-T, n=45). The analgesic effect, mean arterial pressure (MAP), heart rate (HR) and the rate of adverse events in both groups were compared. Results Visual analogue scale (VAS) scores of patients in Group-T at 12h, 24h and 48h after the operation were significantly lower compared to Group-G (P<0.05). MAP and HR the time of tracheal intubation induction (T1), single lung ventilation (T2), skin incision (T3), operation completion (T4), and 20 minutes after the extubation (T5) were lower in both groups compared to T0, and were significantly higher in Group-T compared to Group-G (P<0.05). The rate of adverse events in Group-T was 6.67%, significantly lower compared to Group-G (24.32%) (P<0.05). Conclusions TPVB combined with GA can improve the analgesic effect, improve MAP and HR during the operation, and reduce the incidence of adverse events in patients undergoing thoracoscopic lobectomy.
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Affiliation(s)
- Wenhui Zeng
- Wenhui Zeng, Department of Anesthesiology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, P.R. China
| | - Jianbo Zhang
- Jianbo Zhang, Department of Anesthesiology, General Hospital of Southern Theater Command, Guangzhou, Guangdong Province, P.R. China
| | - Leilei Huang
- Leilei Huang, Department of Anesthesiology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, P.R. China
| | - Zhihang Tang
- Zhihang Tang, Department of Anesthesiology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, P.R. China
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Hsu J, Yu SP, Pan CT, Huang PM. Stripping Massage and Literature Review in Post-Thoracoscopic Chest Pain Management. Thorac Cardiovasc Surg 2023. [PMID: 37490933 DOI: 10.1055/a-2137-9035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
Abstract
The aim of this randomized study was to investigate whether stripping massage (SM) of myofascial trigger points in the lower rhomboid muscle could alleviate chest pain in patients following thoracoscopic surgery. In addition, a literature review was conducted to assess the effectiveness of various pain management techniques. Sixty adult patients who reported a visual analog scale (VAS) score of 4 or higher were randomly assigned to receive conventional analgesics alone (conventional group) or combined with SM twice daily for 2 weeks (SM group). VAS scores and the use of additional analgesics were evaluated on postoperative days 1, 3, 7, 14, and 30. Using the PubMed and Cochrane Library databases, a review of current pain management techniques was carried out up to January 31, 2022. A subgroup analysis was also performed to examine the treatment effect during different surgical periods and techniques. Results showed that the SM group had significantly lower VAS scores on postoperative days 3, 7, 14, and 30 (p < 0.001), as well as a shorter hospitalization duration and reduced need for additional analgesics (p < 0.001). The literature review included a total of 20 studies (2,342 cases of chest pain relief after thoracoscopic surgery), which indicated that serratus anterior plane (SAP) blocks were commonly used as a perioperative approach to reduce pain and opioid consumption. SM and SAP can both serve as adjuvant treatments for chest pain in patients following thoracoscopic surgery, with SM being a safe and noninvasive pain control option after hospital discharge.
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Affiliation(s)
- Jiun Hsu
- National Taiwan University Hospital Yunlin Branch, YunLin County, Taiwan
| | - Sheng-Pin Yu
- National Taiwan University Hospital Yunlin Branch, YunLin County, Taiwan
| | - Chien-Te Pan
- National Taiwan University Hospital Yunlin Branch, YunLin County, Taiwan
| | - Pei-Ming Huang
- Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan
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Bravo D, Tran DQ. Do chest tubes obviate the need for thoracic erector spinae plane blocks? J Clin Anesth 2023; 87:111112. [PMID: 36958073 DOI: 10.1016/j.jclinane.2023.111112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 03/10/2023] [Accepted: 03/15/2023] [Indexed: 03/25/2023]
Affiliation(s)
- Daniela Bravo
- Hospital Clínico Universidad de Chile, Department of Anesthesiology and Perioperative Medicine, University of Chile, Santiago, Chile.
| | - De Q Tran
- St Mary's Hospital, Department of Anesthesiology, McGill University, Montreal, Quebec, Canada
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Feng M, Wang L, Sun J, Chen Z, Fu J, Liu D, Zhang R, Li Y, Zhang Y, Zhang H, Zhang W, Feng C. Thoracic Paravertebral Block Combined with General Anaesthesia or General Anaesthesia Alone for Thoracoscopic Lung Adenocarcinoma Surgery: A Retrospective Study. Cancer Manag Res 2022; 14:953-965. [PMID: 35264885 PMCID: PMC8901418 DOI: 10.2147/cmar.s346285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 02/23/2022] [Indexed: 12/24/2022] Open
Abstract
Purpose To investigate the effects of ultrasound-guided thoracic paravertebral block combined with general anaesthesia or general anaesthesia alone for thoracoscopic lung adenocarcinoma surgery, and to provide new thoughts for improving the clinical outcomes. Methods This was a retrospective study. Data were retrieved for 195 patients with lung adenocarcinoma undergoing elective radical lobectomy via video-assisted thoracoscopy between January 2018 and August 2019 in The Second Hospital of Shandong University, including 86 patients who received thoracic paravertebral block (TPVB) combined with general anaesthesia (group TG), and 109 patients who received general anaesthesia alone (group GA). All patients were given self-controlled intravenous analgesia pump for 48 h after surgery. The primary outcome was the recurrence-free survival 2 years postoperatively (the time between surgery and the earliest date of recurrence, metastasis or lung cancer-cause death). The secondary outcomes included the average numeric rating scale (NRS) scores within 48 h postoperatively, the first time of postoperative ambulation, duration of chest tube drainage, length of postoperative hospitalization, perioperative opioid consumption and the postoperative side effects. Results There were no statistical differences in the recurrence-free survival 2 years postoperatively between groups (Multivariate hazard ratio 0.706, 95% CI 0.126–3.941, P=0.691). The average NRS scores within 48 h postoperatively were significantly lower in group TG (P<0.05). The first time of postoperative ambulation, duration of chest tube drainage, and length of postoperative hospitalization in group TG were significantly reduced (P<0.05). Opioid consumption was significantly decreased in group TG (P<0.01). Finally, the incidence of postoperative nausea and vomiting (PONV) was significantly lower in group TG (P<0.05). Conclusion TPVB for thoracoscopic lung adenocarcinoma surgery did not improve the recurrence-free survival 2 years postoperatively compared with general anaesthesia alone, but it significantly enhanced the postoperative analgesia effect, reduced opioid consumption as well as side effects, and accelerated postoperative early recovery. Clinical Trial Registration Number The Chinese Clinical Trial Registry (ChiCTR-2100050454).
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Affiliation(s)
- Man Feng
- Department of Pathology, Affiliated Hospital of Shandong Academy of Medical Sciences, The third Affiliated Hospital of Shandong First Medical University, Jinan, 250000, People’s Republic of China
| | - Lulu Wang
- Cheeloo College of Medicine, Shandong University, Jinan, 250033, People’s Republic of China
| | - Jing Sun
- Cheeloo College of Medicine, Shandong University, Jinan, 250033, People’s Republic of China
| | - Zheping Chen
- Cheeloo College of Medicine, Shandong University, Jinan, 250033, People’s Republic of China
| | - Jia Fu
- Department of Anaesthesiology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250033, People’s Republic of China
| | - Dongyi Liu
- Department of Anaesthesiology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250033, People’s Republic of China
| | - Rumeng Zhang
- Department of Anaesthesiology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250033, People’s Republic of China
| | - Youqin Li
- Cheeloo College of Medicine, Shandong University, Jinan, 250033, People’s Republic of China
| | - Yan Zhang
- Cheeloo College of Medicine, Shandong University, Jinan, 250033, People’s Republic of China
| | - He Zhang
- Department of Anaesthesiology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250033, People’s Republic of China
| | - Weiquan Zhang
- Department of Thoracic Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250033, People’s Republic of China
| | - Chang Feng
- Department of Anaesthesiology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250033, People’s Republic of China
- Correspondence: Chang Feng, Department of Anaesthesiology, The Second Hospital, Cheeloo College of Medicine, Shandong University, 247 Bei Yuan Street, Jinan, 250033, People’s Republic of China, Tel +86 17660085521, Email
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Chen X, Yang J, Xia M, Wu H, Wang S, Zhang W. Single-Injection Midpoint Transverse Process-to- Pleura Block Versus Thoracic Paravertebral Block for Postoperative Analgesia After Uniportal Video-Assisted Thoracoscopic Surgery: A Randomized Controlled Trial. J Cardiothorac Vasc Anesth 2022; 36:2432-2438. [PMID: 35115225 DOI: 10.1053/j.jvca.2021.12.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 12/23/2021] [Accepted: 12/29/2021] [Indexed: 11/11/2022]
Abstract
OBJECTIVES The effect of midpoint transverse process-to-pleura block (MTPB) is unclear. The authors compared the analgesic characteristics of MTPB with those of thoracic paravertebral nerve block (TPVB) in patients undergoing uniportal video-assisted thoracoscopic surgery (uVATS) and examined the 2 types of blocks for noninferiority. DESIGN A randomized, controlled trial. SETTING A single-institution, university hospital. PARTICIPANTS The study comprised 82 patients between 18 and 75 years of age. Eighty-one patients were included for final analysis. INTERVENTIONS Patients were randomly allocated to either the MTPB group (Group M) or the TPVB group (Group P). MEASUREMENTS AND MAIN RESULTS The primary outcome was the mean difference in the postoperative visual analog scale (VAS) score between Group M and Group P at rest and at 12 hours. The secondary outcomes included VAS scores during rest and coughing, nerve block performance, intraoperative consumption of anesthetics and vasoactive medication, time at first use of patient-controlled intravenous analgesia (PCIA), number of uses of PCIA, consumption of sufentanil in PCIA, and side effects. The mean difference in VAS score in the MTPB and TPVB group at rest and 12 hours postoperatively was 0.5 (95% confidence interval, -0.26 to 0.36). There was no significant difference in the time at first use of PCIA, which was 12 (10, 12) hours and 11 (10, 12) hours in Group M and Group P, respectively. The depth of puncture was shallower, and the time to perform block was shorter in Group M compared with Group P (p < 0.001). CONCLUSIONS The analgesic effect of single-level-injection MTPB is noninferior to that of TPVB in patients undergoing uVATS. The target point of the needle in MTPB is shallower and farther away from the pleura compared with TPVB. For these reasons, it is quicker and safer and, thus, may be preferable.
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Affiliation(s)
- Xu Chen
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Jinjing Yang
- Department of Radiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Min Xia
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Hao Wu
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Sheng Wang
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Wei Zhang
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China.
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Jo Y, Park S, Oh C, Pak Y, Jeong K, Yun S, Noh C, Chung W, Kim YH, Ko YK, Hong B. Regional analgesia techniques for video assisted thoracic surgery: a frequentist network meta-analysis. Korean J Anesthesiol 2021; 75:231-244. [PMID: 34638182 PMCID: PMC9171539 DOI: 10.4097/kja.21330] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 10/12/2021] [Indexed: 11/27/2022] Open
Abstract
Background Various regional analgesia techniques are used to reduce postoperative pain in patients undergoing video-assisted thoracic surgery (VATS). This study aimed to determine the relative efficacy of regional analgesic interventions for VATS using a network meta-analysis. Methods We searched the Medline, EMBASE, Cochrane Controlled Trial Register, Web of Science, and Google Scholar databases to identify all randomized controlled trials (RCTs) that compared the analgesic effects of the following interventions: control, thoracic paravertebral block (TPVB), erector spinae plane block (ESPB), serratus plane block (SPB), and intercostal nerve block (INB). The primary outcome was opioid consumption during the first 24 h postoperative period. Pain scores were also collected during three different postoperative periods: the early (0–6 h), middle (6–18 h), and late (18–24 h) periods. Results A total of 21 RCTs (1,391 patients) were included. TPVB showed the greatest effect on opioid consumption compared with the control (mean difference [MD]: −13.2 mg, 95% CI [−16.2, −10.1]). In terms of pain scores in the early period, ESPB had the greatest effect compared to control (MD: −1.6, 95% CI [−2.3, −0.9]). In the middle and late periods, pain scores showed that TPVB, ESPB and INB had superior analgesic effects compared to controls, while SPB did not. Conclusions TPVB had the best analgesic efficacy following VATS, though the analgesic efficacy of ESPBs was comparable. However, further studies are needed to determine the optimal regional analgesia technique to improve postoperative pain control following VATS.
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Affiliation(s)
- Yumin Jo
- Department of Anesthesiology and Pain Medicine, Chungnam National University Hospital, Daejeon, Korea.,Department of Anesthesiology and Pain Medicine, College of Medicine, Chungnam National University, Daejeon, Korea
| | - Seyeon Park
- Department of Nursing, College of Nursing, Chungnam National University, Daejeon, Korea
| | - Chahyun Oh
- Department of Anesthesiology and Pain Medicine, Chungnam National University Hospital, Daejeon, Korea.,Department of Anesthesiology and Pain Medicine, College of Medicine, Chungnam National University, Daejeon, Korea
| | - Yujin Pak
- Department of Anesthesiology and Pain Medicine, Chungnam National University Hospital, Daejeon, Korea.,Department of Anesthesiology and Pain Medicine, College of Medicine, Chungnam National University, Daejeon, Korea
| | - Kuhee Jeong
- Department of Anesthesiology and Pain Medicine, Chungnam National University Hospital, Daejeon, Korea
| | - Sangwon Yun
- Department of Anesthesiology and Pain Medicine, Chungnam National University Hospital, Daejeon, Korea.,Department of Anesthesiology and Pain Medicine, College of Medicine, Chungnam National University, Daejeon, Korea
| | - Chan Noh
- Department of Anesthesiology and Pain Medicine, Chungnam National University Hospital, Daejeon, Korea.,Department of Anesthesiology and Pain Medicine, College of Medicine, Chungnam National University, Daejeon, Korea
| | - Woosuk Chung
- Department of Anesthesiology and Pain Medicine, Chungnam National University Hospital, Daejeon, Korea.,Department of Anesthesiology and Pain Medicine, College of Medicine, Chungnam National University, Daejeon, Korea
| | - Yoon-Hee Kim
- Department of Anesthesiology and Pain Medicine, Chungnam National University Hospital, Daejeon, Korea.,Department of Anesthesiology and Pain Medicine, College of Medicine, Chungnam National University, Daejeon, Korea
| | - Young Kwon Ko
- Department of Anesthesiology and Pain Medicine, Chungnam National University Hospital, Daejeon, Korea.,Department of Anesthesiology and Pain Medicine, College of Medicine, Chungnam National University, Daejeon, Korea.,Biomedical Research Institute, Chungnam National University Hospital, Daejeon, Korea
| | - Boohwi Hong
- Department of Anesthesiology and Pain Medicine, Chungnam National University Hospital, Daejeon, Korea.,Department of Anesthesiology and Pain Medicine, College of Medicine, Chungnam National University, Daejeon, Korea.,Biomedical Research Institute, Chungnam National University Hospital, Daejeon, Korea
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