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Furlan B, de Melo BT, Papini JZB, Sperandio M, Oliveira JD, de Paula E, Cereda CMS, Tofoli GR. Pre-clinical evaluation of new dibucaine formulations for preventive analgesia. J Liposome Res 2020; 31:230-236. [PMID: 32567452 DOI: 10.1080/08982104.2020.1785494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
We have previously developed ammonium sulphate gradient loaded liposomes to encapsulate dibucaine. Thus, the purpose of this study was to evaluate the pre-clinical safety and effectiveness of this novel ionic liposomal formulation of dibucaine (DBC), as described in previous work. Effectiveness was evaluated in vivo on Wistar rats (n = 8) that received plain DBC or liposomal DBC (DBCLUV). Control empty liposomes (without DBC) or saline were also used as control. Sciatic nerve block was performed using the formulations or controls (0.4 mL). A hindpaw incision-based postoperative pain model was used to evaluate mechanical hypersensitivity with von Frey filaments. To verify antiinflamatory activity protein levels of TNF-α, IL-1β, substance P and CGRP were measured by ELISA in the hindpaw tissue after 1 and 6 hours of the incision. To corroborate drug safety, sciatic nerve Schwann cell cultures were treated with the aforementioned formulations and assessed for cell viability (MTT assay) and death (flow cytometry assay). Histopathology of the tissues surrounding the sciatic nerve region was also assessed 2 and 7 days after treatment. All animals presented post incisional hypersensitivity and DBCLUV showed longer analgesic effect (p < 0.001). DBCLUV reduced TNF-α and CGRP levels (p < 0.05). Histopathological evaluation showed greater inflammatory reaction after the administration of control liposomes when compared to DBC (p < 0.05). There was no difference in Schwann cell viability and death between plain and encapsulated DBC. DBCLUV was safe and enhanced anaesthesia duration due to slow release of dibucaine from ammonium sulphate gradient loaded liposomes.
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Affiliation(s)
- Beatriz Furlan
- Faculdade São Leopoldo Mandic, Instituto de Pesquisa São Leopoldo Mandic, Campinas, São Paulo, Brazil
| | - Beatriz T de Melo
- Faculdade São Leopoldo Mandic, Instituto de Pesquisa São Leopoldo Mandic, Campinas, São Paulo, Brazil
| | - Juliana Z B Papini
- Faculdade São Leopoldo Mandic, Instituto de Pesquisa São Leopoldo Mandic, Campinas, São Paulo, Brazil
| | - Marcelo Sperandio
- Faculdade São Leopoldo Mandic, Instituto de Pesquisa São Leopoldo Mandic, Campinas, São Paulo, Brazil
| | - Juliana D Oliveira
- Departamento de Bioquímica, Universidade Estadual de Campinas, Instituto de Biologia, Campinas, São Paulo, Brazil
| | - Eneida de Paula
- Departamento de Bioquímica, Universidade Estadual de Campinas, Instituto de Biologia, Campinas, São Paulo, Brazil
| | - Cintia M S Cereda
- Faculdade São Leopoldo Mandic, Instituto de Pesquisa São Leopoldo Mandic, Campinas, São Paulo, Brazil
| | - Giovana R Tofoli
- Faculdade São Leopoldo Mandic, Instituto de Pesquisa São Leopoldo Mandic, Campinas, São Paulo, Brazil
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Zhai B, Zhang Y, Chen Z, Yang F, Dong X, Chen Z, Cui Y, Wang P, Shi L, Yu W. Effect of video-assisted thoracoscopic surgery on pain stress indicators NO, IL-1β and IL-6 in the treatment of mediastinal tumor in children. Oncol Lett 2020; 19:3931-3936. [PMID: 32391101 PMCID: PMC7204486 DOI: 10.3892/ol.2020.11515] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Accepted: 02/12/2020] [Indexed: 12/17/2022] Open
Abstract
This study aimed to investigate the effect of video-assisted thoracoscopic surgery (VATS) on pain stress indicators nitric oxide (NO), interleukin-1β (IL-1β) and IL-6 in the treatment of mediastinal tumor in children, so as to explore the clinical application value of this surgery. A retrospective analysis was performed on 82 children with mediastinal tumor undergoing operation in Children's Hospital Affiliated to Zhengzhou University from January 2012 to January 2016. Among them, 48 children undergoing VATS were enrolled as an observation group, and 34 children undergoing conventional thoracotomy were enrolled as a control group. Enzyme-linked immunosorbent assay (ELISA) was used to detect the preoperative and postoperative expression levels of NO, IL-1β and IL-6. The intraoperative clinical data, postoperative pain degree and infection rate were observed and recorded in real time, and then compared between the two groups. Before operation (T0), there were no statistically significant differences between the two groups in serum NO, IL-1β and IL-6 expression levels, which were lower in the observation group than those in the control group at 12 h (T1) and 24 h (T2) after operation (P<0.05). The visual analog scale (VAS) score in the observation group was lower than that in the control group at T1 (P<0.05). Compared with the control group, the largest blade opening, intraoperative blood loss, drainage duration and postoperative pain degree were significantly improved in the observation group. The postoperative infection rate was 4.17% in the observation group, significantly lower than 17.64% in the control group. VATS is effective for postoperative pain stress indicators and infection control in children with mediastinal tumor, which is therefore more suitable for children with the disease and has a higher clinical value.
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Affiliation(s)
- Bo Zhai
- Department of Cardiothoracic Surgery, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, Henan 450018, P.R. China
| | - Yonghong Zhang
- Department of Cardiothoracic Surgery, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, Henan 450018, P.R. China
| | - Zhenliang Chen
- Department of Cardiothoracic Surgery, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, Henan 450018, P.R. China
| | - Fang Yang
- Department of Cardiothoracic Surgery, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, Henan 450018, P.R. China
| | - Xiangyang Dong
- Department of Cardiothoracic Surgery, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, Henan 450018, P.R. China
| | - Zhongjian Chen
- Department of Cardiothoracic Surgery, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, Henan 450018, P.R. China
| | - Yazhou Cui
- Department of Cardiothoracic Surgery, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, Henan 450018, P.R. China
| | - Penggao Wang
- Department of Cardiothoracic Surgery, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, Henan 450018, P.R. China
| | - Lei Shi
- Department of Cardiothoracic Surgery, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, Henan 450018, P.R. China
| | - Wenbo Yu
- Department of Cardiothoracic Surgery, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, Henan 450018, P.R. China
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Lim L, Jang YE, Kim EH, Lee JH, Kim JT, Kim HS. Comparison of the Effects of Sufentanil and Fentanyl in Intravenous Patient-Controlled Analgesia after Pediatric Moyamoya Surgery: A Retrospective Study. Pediatr Neurosurg 2020; 55:36-41. [PMID: 31940654 DOI: 10.1159/000504582] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Accepted: 10/26/2019] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Intravenous patient-controlled analgesia (PCA) has been one of the most popular modalities for postoperative pain management in orthopedic surgery, plastic surgery, or neurosurgery in children. OBJECTIVE We compared the effects of fentanyl and sufentanil used in intravenous PCA on postoperative pain management and opioid-related side effects in pediatric moyamoya disease. METHODS This retrospective study included 97 pediatric patients who underwent surgery for moyamoya disease. Preoperative and perioperative parameters were assessed. The PCA regimen was as follows: fentanyl group (0.2 μg/kg/mL, 1 mL of loading volume, 0.1 μg/kg/h of basal infusion, a bolus of 0.2 μg/kg on demand, "lock-out" interval of 15 min); sufen-tanil group (0.04 μg/kg/mL, 1 mL of loading volume, 0.02 μg/kg/h of basal infusion, a bolus of 0.04 μg/kg on demand, 15 min lock-out), 10 μg/kg (up to 300 μg) of ramosetron for prophylaxis of postoperative nausea and vomiting with the same loading dose in both groups. Peripheral nerve blocks were performed. Pain was assessed by numeric rating scale or revised Faces Pain Scale. Side effects were reviewed. RESULTS The two groups showed similar pain scores and incidence of nausea or vomiting during the first 48 h postoperatively. Additional analgesics were more frequent in the fentanyl group, and PCA was discontinued more frequently in the sufentanil group. CONCLUSIONS Postoperatively, sufen-tanil in PCA provided more analgesia than fentanyl with less additional analgesics in moyamoya disease. However, PCA with sufentanil was more frequently discontinued due to nausea or vomiting compared to fentanyl-based PCA.
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Affiliation(s)
- Leerang Lim
- Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Young-Eun Jang
- Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Eun-Hee Kim
- Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Ji-Hyun Lee
- Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Jin-Tae Kim
- Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul, Republic of Korea.,Department of Anesthesiology and Pain Medicine, College of Medicine, Seoul National University, Seoul, Republic of Korea
| | - Hee-Soo Kim
- Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul, Republic of Korea, .,Department of Anesthesiology and Pain Medicine, College of Medicine, Seoul National University, Seoul, Republic of Korea,
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