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Tao YB, Tang ZL, Lin ZL, Lei WP, Lu XL, Sun JL. Effects of glycopyrrolate and atropine for oral secretions and perioperative hemodynamics in children undergoing tonsillectomy and adenoidectomy: a prospective, single-center, randomized, double-blind, controlled trial. Front Pharmacol 2024; 15:1344786. [PMID: 38783938 PMCID: PMC11111986 DOI: 10.3389/fphar.2024.1344786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Accepted: 04/25/2024] [Indexed: 05/25/2024] Open
Abstract
Introduction Glycopyrrolate is commonly researched as a preoperative medication or in conjunction with cholinesterase inhibitors to counteract the lingering muscarinic effects of non-depolarizing muscarinic agents. However, studies have yielded inconsistent results regarding the superiority of glycopyrrolate over other anti-cholinergic drugs, such as atropine, particularly its effect on heart rate, blood pressure (BP), and glandular secretions. This study aimed to evaluate the differences in perioperative oral secretions, hemodynamics, and recovery quality with glycopyrrolate versus those with atropine before anesthesia induction in children undergoing tonsillectomy and adenoidectomy. Methods In this prospective, single-center, randomized, double-blind, controlled trial, a total of 103 children were randomly assigned to group A (n = 51, glycopyrrolate 0.005 mg/kg) or B (n = 52, atropine 0.01 mg/kg). The follow-up anesthetic induction and maintenance protocols were the same in both groups. Vital signs, duration of surgery, extubation time, degree of wetness around the vocal cords during tracheal intubation, weight of oral secretions, and perioperative complications were recorded. Results No significant differences were observed in the degree of wetness around the vocal cords during tracheal intubation, as well as in the weight of oral secretions, duration of surgery, or extubation time, between the two groups. The intraoperative and postoperative heart rates were lower in group A than in group B (110.18 ± 10.58 vs. 114.94 ± 11.14, p = 0.028; 96.96 ± 10.81 vs. 103.38 ± 10.09, p = 0.002). The differences observed in the intraoperative and preoperative heart rates were lower in group A than in group B (23.84 ± 9.62 vs. 29.65 ± 8.75, p = 0.002). The differences observed in the postoperative and preoperative heart rates were lower in group A than in group B (10.63 ± 9.97 vs. 18.09 ± 9.39, p = 0.000). Conclusion Glycopyrrolate showed a smoother change in heart rate than atropine during and after tonsillectomy and adenoidectomy, with no effect on BP or recovery quality, and did not increase oral secretions. The findings indicate that glycopyrrolate can serve as an alternative to atropine to prevent secretions in anesthesia induction for tonsillectomy and adenoidectomy in children. Trial registration: This study was registered with the Chinese Clinical Trial Registry (Registration Number: ChiCTR2200063578; Date of Registration: 12/09/2022).
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Affiliation(s)
- Yi-Bin Tao
- Department of Anesthesiology, The Fourth Clinical School of Medicine, Zhejiang Chinese Medical University, Hangzhou, China
- Department of Anesthesiology, Affiliated Hangzhou First People’s Hospital, Westlake University School of Medicine, Hangzhou, China
| | - Zi-Li Tang
- Department of Anesthesiology, The Fourth Clinical School of Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Zhong-Lan Lin
- Department of Anesthesiology, The Fourth Clinical School of Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Wei-Ping Lei
- Department of Anesthesiology, Affiliated Hangzhou First People’s Hospital, Westlake University School of Medicine, Hangzhou, China
| | - Xin-Lei Lu
- Department of Anesthesiology, Affiliated Hangzhou First People’s Hospital, Westlake University School of Medicine, Hangzhou, China
| | - Jian-Liang Sun
- Department of Anesthesiology, The Fourth Clinical School of Medicine, Zhejiang Chinese Medical University, Hangzhou, China
- Department of Anesthesiology, Affiliated Hangzhou First People’s Hospital, Westlake University School of Medicine, Hangzhou, China
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Zhang R, Zhang WX, Ma XR, Feng Y. Intraoperative Sufentanil Consumption and the Risk of Postoperative Nausea and/or Vomiting: A Retrospective Observational Study. Pain Ther 2023; 12:1271-1281. [PMID: 37556070 PMCID: PMC10444923 DOI: 10.1007/s40122-023-00546-6] [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: 03/25/2023] [Accepted: 07/19/2023] [Indexed: 08/10/2023] Open
Abstract
INTRODUCTION Post-operative nausea and/or vomiting (PONV) is a common post-operative adverse reaction and has been associated with post-operative sufentanil injection. The assessment of the relationship between intraoperative opioid consumption and PONV has been understudied. This study examined the relationship between intraoperative sufentanil administration and PONV. METHODS This was a single-center retrospective observational study. Patients who underwent video-assisted thoracoscopic surgery under general anesthesia with the preoperative thoracic paravertebral block between January 2017 and June 2020 at the Peking University People's Hospital were recruited for this study. Patients were grouped into two groups according to whether or not PONV occurred on postoperative day 1 (POD1). The factors associated with PONV were analyzed using logistic regression. RESULTS A total of 2733 patients, 1510 males and 1223 females, were included in this study. Among them, 143 patients developed PONV, a 5.2% (143/2733) PONV incidence. Logistic regression analysis showed that female, nonsmoking, sufentanil patient-controlled intravenous analgesia (PCIA), POD1 opioids consumption, and a time-weighted average of intraoperative sufentanil (twSuf) were associated with PONV. All patients were further divided into four subgroups based on intraoperative twSuf. Logistic regression analysis revealed that twSuf higher than 0.21 μg kg-1 h-1 was an independent risk factor for PONV. CONCLUSIONS Intraoperative sufentanil injection with a twSuf higher than 0.21 μg kg-1 h-1 increased the risk of PONV in patients undergoing thoracoscopic surgery under general anesthesia after a preoperative thoracic paravertebral block.
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Affiliation(s)
- Ran Zhang
- Department of Anesthesiology and Pain Medicine, Peking University People's Hospital, Beijing, China
| | - Wei Xin Zhang
- Department of Anesthesiology and Pain Medicine, Peking University People's Hospital, Beijing, China
| | - Xiao Ran Ma
- Department of Anesthesiology and Pain Medicine, Peking University People's Hospital, Beijing, China
| | - Yi Feng
- Department of Anesthesiology and Pain Medicine, Peking University People's Hospital, Beijing, China.
- Peking University People's Hospital, 11 Xizhimen South Street, Xicheng District, Beijing, 100044, China.
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Zhang F, Luo M, Liu D, Zhu Y, Zhu Z. Effects of modified multimodal analgesia on postoperative pain, sedation, and prognosis of gynecological patients. IBRAIN 2021; 7:278-287. [PMID: 37786562 PMCID: PMC10529323 DOI: 10.1002/ibra.12002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 10/31/2021] [Accepted: 11/01/2021] [Indexed: 10/04/2023]
Abstract
Patient-controlled intravenous analgesia is one of the most common pain relief methods in the postoperative period, but its adverse reactions remain high. This study aimed to explore the role of improved combined analgesia methods in pain, sedation, postoperative nausea, and vomiting (PONV) in patients undergoing gynecological surgeries. This study was a prospective, randomized, double-blind controlled study. A study population of 72 patients undergoing gynecological surgery were randomly assigned to either the TAPB + S group or the TAPB + N group. All patients in both groups underwent a transversus abdominis plane block (TAPB) after induction of anesthesia. The TAPB + S group received a continuous intravenous infusion (2 ml/h) of sufentanil (1 μg/kg) plus metoclopramide (30 mg) through 100 ml elastomeric pumps postoperatively. The TAPB + N group received a continuous intravenous infusion (2 ml/h) of nalbuphine hydrochloride (1 mg/kg) plus metoclopramide (30 mg) postoperatively. The main outcome measures were as follows: postoperative pain intensity, Ramsay sedation score (RSS) after surgery, PONV occurrence rate, and rescue analgesics. The RSS of the TAPB + S group was significantly higher than that of the TAPB + N group at 2, 4, and 6 h after the operation. However, the visual analog scale score of the TAPB + S group was much higher than that of the TAPB + N group. No significant differences were found between the two groups in terms of consumption of opioids and other narcotic drugs at 2, 4, 6, 24, and 48 h after the operation. No statistically significant differences were found with respect to PONV and other adverse events in both groups. Taken together, our data indicate that the TAPB + N program can provide better postoperative analgesia and also reduce the use of strong opioids. The more optimized scheme of perioperative analgesia still needs to be researched further.
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Affiliation(s)
- Fan Zhang
- Department of AnesthesiologyAffiliated Hospital of Zunyi Medical UniversityZunyiGuizhouChina
| | - Man Luo
- Department of AnesthesiologyAffiliated Hospital of Zunyi Medical UniversityZunyiGuizhouChina
| | - De‐Xing Liu
- Department of AnesthesiologyAffiliated Hospital of Zunyi Medical UniversityZunyiGuizhouChina
| | - Yu‐Hang Zhu
- College of Animal Science/Institute of Agro‐Bioengineering and Key Laboratory of Plant Resource Conservative and Germplam Innovation in Mountainous RegionGuizhou UniversityGuiyangGuizhouChina
| | - Zhao‐Qiong Zhu
- Department of AnesthesiologyAffiliated Hospital of Zunyi Medical UniversityZunyiGuizhouChina
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Meyer-Frießem CH, Hüsken S, Kaisler M, Malewicz NM, Zahn PK, Baumann A. Isoflurane not at the expense of postoperative nausea and vomiting in cardiac anesthesia - an observational study. Curr Med Res Opin 2021; 37:2035-2042. [PMID: 34515599 DOI: 10.1080/03007995.2021.1980776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
OBJECTIVES Inhalative anesthesia is of common use, but is generally known to potentiate postoperative nausea and vomiting (PONV). With an internal change of anesthesia regimen from total intravenous anesthesia (TIVA) to isoflurane (in terms of myocardial protection) in cardiac anesthesia a higher incidence of PONV was to be expected. Therefore, we evaluated the incidence of PONV after the simultaneous implementation of PONV prophylaxis. METHODS The incidence of PONV, prospectively assessed in 197 cardiac surgery patients (68 y ± 10.4, 66.5% male) having isoflurane plus dual PONV prophylaxis with dexamethasone and droperidol, was compared with previous data of 190 controls (67 y ± 9.6, 71% male) having TIVA without and with single or dual PONV prophylaxis (n = 64 dexamethasone and droperidol, n = 25 dexamethasone, n = 101 only TIVA), and the Apfel-scoring (0-4 depending on PONV-risk). DRKS00014275. Statistics: Chi2-test, p < .05 (Bonferroni). RESULTS The incidence of PONV under isoflurane with antiemetic prophylaxis was 20.8% (95% confidence interval (CI) 15.4; 27.4) compared to 30.5% (95%CI 24; 37.6) under TIVA (p = .029; dexamethasone and droperidol 23.4% (95%CI 13.8; 35.7); dexamethasone 32% (95%CI 14.9; 53.5); only TIVA 34.7% (95%CI 25.5; 44.8)), but was not lower in high-risk patients than predicted according to Apfel-scoring 4 (71.4 vs. 78%). CONCLUSION In cardiac anesthesia, the use of isoflurane is not at the expense of PONV when using a risk-independent two-drug-prophylaxis. It is even beneficial resulting surprisingly in a lower incidence of PONV than under TIVA unless with and without prophylaxis. Patients with the highest risk for PONV and receiving isoflurane should receive a third antiemetic prophylactic drug.
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Affiliation(s)
- Christine H Meyer-Frießem
- Department of Anesthesiology, Intensive Care and Pain Medicine, Medical Faculty of Ruhr, University Bochum, BG-Universitätsklinikum Bergmannsheil gGmbH Bochum, Bochum, Germany
| | - Sabeth Hüsken
- Department of Anesthesiology, Intensive Care and Pain Medicine, Medical Faculty of Ruhr, University Bochum, BG-Universitätsklinikum Bergmannsheil gGmbH Bochum, Bochum, Germany
| | - Miriam Kaisler
- Department of Anesthesiology, Intensive Care and Pain Medicine, Medical Faculty of Ruhr, University Bochum, BG-Universitätsklinikum Bergmannsheil gGmbH Bochum, Bochum, Germany
| | - Nathalie M Malewicz
- Department of Anesthesiology, Intensive Care and Pain Medicine, Medical Faculty of Ruhr, University Bochum, BG-Universitätsklinikum Bergmannsheil gGmbH Bochum, Bochum, Germany
| | - Peter K Zahn
- Department of Anesthesiology, Intensive Care and Pain Medicine, Medical Faculty of Ruhr, University Bochum, BG-Universitätsklinikum Bergmannsheil gGmbH Bochum, Bochum, Germany
| | - Andreas Baumann
- Department of Anesthesiology, Intensive Care and Pain Medicine, Medical Faculty of Ruhr, University Bochum, BG-Universitätsklinikum Bergmannsheil gGmbH Bochum, Bochum, Germany
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Chen Y, Wang B, Yao L, Feng Z. [Maximum dose of continuous infusion of mivacurium for thyroid surgery under total intravenous anesthesia: a sequential trial of monitoring neurological function in 30 patients]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2021; 41:64-68. [PMID: 33509754 DOI: 10.12122/j.issn.1673-4254.2021.01.08] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To investigate the maximum dose of continuous mivacurium infusion for intraoperative neuromonitoring (IONM) and observe the adverse reactions during thyroid surgery under total intravenous anesthesia (TIVA). METHODS Thirty patients undergoing IONM during thyroid surgery received continuous infusion of mivacurium at the initial rate of 14.97 μg · kg-1 · min-1. The infusion rate was adjusted in the next patient based on the response of the previous patient in IONM. The depth of anesthesia was maintained with propofol and remifentanil during the surgery. The EC50 and 95%CI of mivacurium were calculated with Brownlee's up- and-down sequential method. During the operation, body movement and skin flushing of patient was monitored, and the mean arterial pressure (MAP) and heart rate (HP) were recorded immediately (T0) and at 5 min (T1) after injection of muscle relaxant for anesthesia induction, immediately (T2) and at 10 min (T3) and 20 min (T4) after initiation of intraoperative infusion of the muscle relaxant. RESULTS The EC50 for continuous infusion of mivacurium without affecting IONM was 18.9 μg · kg-1 · min-1(95%CI: 17.3-20.5 μg · kg-1 · min-1) during thyroid surgery under TIVA. One patient (3.3%) developed transient facial skin redness after induction. Intubation difficulties or body motions occurred in none of the patients during the surgery. Pair-wise comparison showed no significant variations in MAP or HR of the patients at the 5 time points (P>0.05). CONCLUSIONS In patients undergoing thyroid surgery under TIVA, the EC50 for continuous infusion of mivacurium is 18.9 μg · kg-1 · min-1 (95%CI: 17.3-20.5 μg · kg-1 · min-1), which does not affect IONM or causes serious adverse reactions during the operation.
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Affiliation(s)
- Yongjie Chen
- Pain Department, The First Medical Center of PLA General Hospital, Beijing 100853, China
| | - Bo Wang
- Anesthesiology Department, Peking University International Hospital, Beijing 102206, China
| | - Lan Yao
- Anesthesiology Department, Peking University International Hospital, Beijing 102206, China
| | - Zeguo Feng
- Anesthesiology Department, Peking University International Hospital, Beijing 102206, China
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Yang L, Xu YJ, Shen J, Lou FF, Zhang J, Wu J. Propofol-based total intravenous anesthesia decreases the incidence of postoperative nausea and vomiting without affecting flap survival in free flap breast reconstruction. Gland Surg 2020; 9:1406-1414. [PMID: 33224816 DOI: 10.21037/gs-20-225] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Background Postoperative nausea and vomiting (PONV) may cause undesirable effects after microsurgical breast reconstruction. Although total intravenous anesthesia (TIVA) with propofol has been demonstrated to be effective in reducing PONV, it has not been assessed in autologous free flap breast reconstruction. The purpose of this study was to investigate the antiemetic prophylaxis effect and safety of TIVA in microvascular breast reconstruction. Methods Eighty-three patients undergoing microsurgical breast reconstruction with propofol (31 patients) or sevoflurane (52 patients) were retrospectively reviewed. The incidence of PONV was assessed at 2, 6, and 24 hours after surgery. Mean arterial blood pressure (MAP) was compared at T1 (after flap elevation but before transfer), T2 (15 minutes after revascularization), and T3 (at the end of surgery). Results The incidence of nausea was significantly reduced in the TIVA group over 0 to 2 hours period (P=0.017), and over 2 to 6 hours period (P=0.033). The incidence of vomiting was significantly reduced in the TIVA group over 0 to 2 hours period (P=0.006), and over 2 to 6 hours period (P=0.005). MAP was higher in the TIVA group at T1 (P=0.018), T2 (P=0.005), and T3 (P=0.007). The incidence of flap failure was similar between the two groups (P=0.373). Conclusions Compared with sevoflurane maintaining anesthesia, propofol-based TIVA improves PONV with less fluctuation of MAP, and did not affect flap survival.
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Affiliation(s)
- Li Yang
- Department of Anesthesiology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Ya-Jun Xu
- Department of Anesthesiology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jian Shen
- Department of Anesthesiology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Fei-Fei Lou
- Department of Anesthesiology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jun Zhang
- Department of Anesthesiology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jiong Wu
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Department of Breast Surgery, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China
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Tilahun Bantie A, Admasu W, Mulugeta S, Bacha AR, Getnet Demsie D. Effectiveness of Propofol versus Dexamethasone for Prevention of Postoperative Nausea and Vomiting in Ear, Nose, and Throat Surgery in Tikur Anbessa Specialized Hospital and Yekatit 12th Hospital, Addis Ababa, Ethiopia. Anesthesiol Res Pract 2020; 2020:4258137. [PMID: 32963522 PMCID: PMC7492878 DOI: 10.1155/2020/4258137] [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: 04/30/2020] [Revised: 08/07/2020] [Accepted: 08/21/2020] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Postoperative nausea and vomiting (PONV) remain as common and unpleasant and highly distressful experience following ear, nose, and throat surgery. During ENT surgery, the incidence of PONV could be significantly reduced in patients who receive dexamethasone and propofol as prophylaxis. However, the comparative effectiveness of the two drugs has not been assessed. The aim of this study was to compare the effectiveness of propofol and dexamethasone for prevention of PONV in ear, nose, and throat surgery. METHODS This study was conducted in 80 patients, with ASA I and II, aged 18-65 years, and scheduled for ENT surgery between December 20, 2017, and March 20, 2018. Patients were randomly assigned to Group A and Group B. Immediately after the procedure, Group A patients received single dose of intravenous (IV) dexamethasone (10 mg/kg) and Group B patients were given propofol (0.5 mg/kg, IV), and equal follow-up was employed. The incidence of PONV was noted at 6th, 12th, and 24th hour of drug administration. Independent t-test and Mann-Whitney test were used for comparison of symmetric numerical and asymmetric data between groups, respectively. Categorical data were analyzed with the chi-square test, and p value of < 0.05 was considered as level of significance. RESULTS The incidences of PONV throughout the 24-hour postoperative period were 35% in the propofol group and 25% in the dexamethasone group. Statistical significance was found in incidence of PONV (0% versus 22.5%) and use of antiemetic (0% versus 5%) between dexamethasone and propofol groups, respectively, at 12-24 hours. Over 24 hours, 5% in dexamethasone group and 12.5% in propofol group developed moderate PONV, while none of the participants felt severe PONV. CONCLUSIONS Dexamethasone was more effective than propofol to prevent PONV with lower requirements of rescue antiemetics.
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Affiliation(s)
- Abere Tilahun Bantie
- Department of Anesthesiology, College of Medicine and Health Sciences, Adigrat University, Adigrat, Ethiopia
| | - Wosenyeleh Admasu
- School of Anesthesiology, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Sintayehu Mulugeta
- Department of Anesthesiology, College of Health Sciences, Mekelle University, Mek'ele, Ethiopia
| | - Abera Regassa Bacha
- Department of Anesthesiology, College of Medicine and Health Sciences, Axum University, Axum, Ethiopia
| | - Desalegn Getnet Demsie
- Department of Pharmacy, College of Medicine and Health Sciences, Adigrat University, Adigrat, Ethiopia
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Gecit S, Ozbayir T. Evaluation of Preoperative Risk Assessment and Postoperative Nausea and Vomiting: Importance for Nurses. J Perianesth Nurs 2020; 35:625-629. [PMID: 32778493 DOI: 10.1016/j.jopan.2020.04.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 04/11/2020] [Accepted: 04/17/2020] [Indexed: 11/17/2022]
Abstract
PURPOSE Postoperative nausea and vomiting (PONV) continues to be one of the most common postoperative complications affecting one of four patients. The aim of this study was to assess the importance of preoperative risks and PONV, and to determine the significance for nurses. DESIGN This was a descriptive study. METHODS The study was carried out with 242 patients in the surgical clinics of a university hospital. The data of the study were evaluated via a "Patient Information Form" and "Patient Evaluation Form," including Apfel and Koivuranta Nausea Vomiting Risk Scores, before and after surgery. FINDINGS At the end of the study, 45.9% of the patients were found to have nausea and 23.6% suffered vomiting. The average Apfel risk score of patients was 1.88 ± 1.16, and the Koivuranta risk score was 2.35 ± 1.07. CONCLUSIONS The study found that more patients had nausea than vomiting in the postoperative period. We recommend that the risk scores used in the early determination of PONV should be evaluated by nurses and health care workers in the preoperative period. Furthermore, nursing care planning is recommended for patients identified as at risk of PONV.
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Affiliation(s)
- Sinem Gecit
- Nursing Faculty, Surgical Nursing Department, Ege University, Izmir, Turkey.
| | - Turkan Ozbayir
- Nursing Faculty, Surgical Nursing Department, Ege University, Izmir, Turkey
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Torabi Khah M, Yousefi H, Monazami Ansari AH, Musarezaie A. Prevalence of Postoperative Nausea and Vomiting and Pain in Patients Undergoing Elective Orthopaedic Surgery in Iran. J Perianesth Nurs 2020; 35:294-297. [PMID: 32007392 DOI: 10.1016/j.jopan.2019.07.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 07/09/2019] [Accepted: 07/21/2019] [Indexed: 10/25/2022]
Abstract
PURPOSE The purpose of this study is to determine the prevalence of postoperative nausea, vomiting, and pain and the severity of postoperative pain in adult patients undergoing elective orthopaedic surgery in Iran. DESIGN A descriptive, cross-sectional study design was used. METHODS One hundred twenty-eight patients undergoing elective orthopaedic surgery participated in the study. Demographic and surgical characteristics, severity of pain, frequency of postoperative nausea and vomiting, amount of analgesics and antiemetics administered were measured. FINDINGS The mean time of surgery was 123.67 min. Of all patients, 59.3% experienced nausea and 39% had postoperative vomiting; 98.4% of participants experienced pain. The mean pain intensity in the first 24 hours after surgery was 6.3 based on the Visual Analogue Scale. CONCLUSION High prevalence rates of postoperative nausea (59.3%) and vomiting (39%) were recorded. Among 98.4% of participants, pain intensity was rated as moderate during the first 24 hours after consciousness.
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Affiliation(s)
- Mohsen Torabi Khah
- Department of Adult Health Nursing, School of Nursing and Midwifery, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Hojatollah Yousefi
- Department of Adult Health Nursing, School of Nursing and Midwifery, Isfahan University of Medical Sciences, Isfahan, Iran.
| | | | - Amir Musarezaie
- Department of Adult Health Nursing, School of Nursing and Midwifery, Isfahan University of Medical Sciences, Isfahan, Iran
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Li Y, Deng R, Zhou J, Chen Y, Ouyang A. Comparison of ramosetron and ondansetron for the prevention of postoperative nausea and vomiting in patients undergoing laparoscopic surgery: a meta-analysis of randomized controlled trials. J Int Med Res 2019; 47:4591-4603. [PMID: 31638464 PMCID: PMC6997786 DOI: 10.1177/0300060519871171] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Objective We conducted a systematic literature search and meta-analysis to identify randomized controlled trials (RCTs) comparing the efficacy and safety of ramosetron versus ondansetron for the prevention of postoperative nausea and vomiting (PONV; PON and POV, respectively) in patients undergoing laparoscopic surgery. Methods The electronic databases PubMed, EMBASE, Web of Science, and Cochrane Library were searched up to March 2019 to identify relevant studies. Results The final pooled analysis included 6 RCTs and revealed that postoperative treatment with ramosetron at 24 to 48 hours after surgery significantly reduced the incidence of PON and POV relative to treatment with ondansetron. In a subgroup analysis, ramosetron 0.3 mg tended to reduce PON (0–2 hours) and POV (24–48 hours) more effectively than ondansetron 4 mg. However, no statistical difference was observed between ramosetron 0.3 mg and ondansetron 8 mg in terms of the reduction of PON or POV during any time interval within the first 48 hours after surgery. Conclusions Our results indicate that ramosetron 0.3 mg is superior to ondansetron 4 mg and comparable to ondansetron 8 mg for PONV prophylaxis after laparoscopic surgery.
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Affiliation(s)
- Yiping Li
- The Affiliated Ganzhou Hospital of Nanchang University, Ganzhou, Jiangxi, China
| | - Ruiming Deng
- The Affiliated Ganzhou Hospital of Nanchang University, Ganzhou, Jiangxi, China
| | - Juan Zhou
- The Affiliated Ganzhou Hospital of Nanchang University, Ganzhou, Jiangxi, China
| | - Yuan Chen
- Department of MRI, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Aiping Ouyang
- The Affiliated Ganzhou Hospital of Nanchang University, Ganzhou, Jiangxi, China
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Dexamethasone Reduces Postoperative Nausea in Pediatric Upper Endoscopy With Deep Sedation: A Randomized Controlled Trial. J Pediatr Gastroenterol Nutr 2019; 69:281-286. [PMID: 31124887 DOI: 10.1097/mpg.0000000000002398] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
OBJECTIVES We aimed to evaluate the effect of a single dose of preoperative dexamethasone on postoperative nausea and vomiting (PONV), a frequent complication and a major cause of delayed recovery in pediatric upper gastrointestinal endoscopy (UGIE) under sedation. METHODS In this double-blind randomized controlled study, 98 children aged 2 to 14, with American Society of Anesthesiologists status I to II, and undergoing elective UGIE with deep sedation were included and randomly assigned to 2 groups. Preoperatively, after anesthesia induction with sodium thiopental and maintenance with sevoflurane, patients in the intervention (n = 49) and control (n = 49) groups, respectively received 0.1 mg/kg i.v. dexamethasone and 2 cm i.v. 0.9% saline. Postoperatively, PONV incidence was measured as the primary outcome. RESULTS PONV incidence was significantly less in dexamethasone group (8.2%) compared to the control group (26.5%) (difference = 18.3%, 95% confidence interval: 3.4%-33%, P = 0.016). For secondary outcomes, between-group differences were not statistically significant: incidence of bronchospasm or laryngospasm (both 4.1%, P = 1); emergence delirium assessed with Pediatric Anesthesia Emergence Delirium scale (5.9 ± 3.4 vs 5.7 ± 3.2, P = 0.751); Modified Aldrete score at 0 minutes (9.4 ± 0.8 vs 9.3 ± 0.9, P = 0.909) and at 5 minutes (9.5 ± 0.7 vs 9.4 ± 0.9, P = 0.527); and recovery time (21.1 ± 6.6 vs 23.4 ± 8.6 minutes, P = 0.130). CONCLUSIONS A single preoperative dose of i.v. dexamethasone reduces PONV in children undergoing elective UGIE with deep sedation, but has no significant effect on the patient recovery time or the incidence of postoperative bronchospasm or laryngospasm and emergence delirium.
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Li X, Yu L, Yang J, Tan H. Multimodal analgesia with ropivacaine wound infiltration and intravenous flurbiprofen axetil provides enhanced analgesic effects after radical thyroidectomy: a randomized controlled trial. BMC Anesthesiol 2019; 19:167. [PMID: 31470813 PMCID: PMC6717368 DOI: 10.1186/s12871-019-0835-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Accepted: 08/20/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Thyroidectomy is a common procedure that causes mild trauma. Nevertheless, postoperative pain remains a major challenge in patient care. Multimodal analgesia comprising a combination of analgesics and analgesic techniques has become increasingly popular for the control of postoperative pain. The present study tested the hypothesis that multimodal analgesia with combined ropivacaine wound infiltration and intravenous flurbiprofen axetil after radical thyroidectomy provided better analgesia than a single dosage of tramadol. METHODS This randomized controlled trial was conducted in a tertiary hospital. Forty-four patients (age, 18-75 years; American Society of Anesthesiologists status I or II; BMI < 32 kg/m2) scheduled for radical thyroidectomy were randomly assigned to a multimodal analgesia group (Group M) or a control group (Group C) by random numbers assignments, and 40 patients completed the study. All participants and the nurse in charge of follow-up observations were blinded to group assignment. Anesthesia was induced with sufentanil, propofol, and cisatracurium. After tracheal intubation, Group M received pre-incision wound infiltration with 5 ml of 0.5% ropivacaine mixed with epinephrine at 1:200,000 (5 μg/ml); Group C received no wound infiltration. Anesthesia was maintained with target-controlled infusion of propofol, remifentanil, sevoflurane, and intermittent cisatracurium. Twenty minutes before the end of surgery, Group M received 100 mg flurbiprofen axetil while Group C received 100 mg tramadol. Postoperative pain was evaluated with the numerical rating scale (NRS) pain score. Remifentanil consumption, heart rate, and noninvasive blood pressure were recorded intraoperatively. Adverse events were documented. The primary outcome was analgesic effect according to NRS scores. RESULTS NRS scores at rest were significantly lower in Group M than in Group C before discharge from the postoperative anesthetic care unit (P = 0.003) and at 2 (P = 0.008), 4 (P = 0.020), and 8 h (P = 0.016) postoperatively. Group M also had significantly lower NRS scores during coughing/swallowing at 5 min after extubation (P = 0.017), before discharge from the postoperative anesthetic care unit (P = 0.001), and at 2 (P = 0.002) and 4 h (P = 0.013) postoperatively. Compared with Group C, NRS scores were significantly lower throughout the first 24 h postoperatively in Group M at rest (P = 0.008) and during coughing/swallowing (P = 0.003). No serious adverse events were observed in either group. CONCLUSION Multimodal analgesia with ropivacaine wound infiltration and intravenous flurbiprofen axetil provided better analgesia than tramadol after radical thyroidectomy. TRIAL REGISTRATION Chinese Clinical Trial Registry (registration number # ChiCTR1800020290 ; date of registration: 22/12/2018).
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Affiliation(s)
- Xiaoxi Li
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Anesthesiology, Peking University Cancer Hospital & Institute, #52 Fucheng Street, Haidian District, Beijing, 100142, China
| | - Ling Yu
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Anesthesiology, Peking University Cancer Hospital & Institute, #52 Fucheng Street, Haidian District, Beijing, 100142, China
| | - Jiaonan Yang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Anesthesiology, Peking University Cancer Hospital & Institute, #52 Fucheng Street, Haidian District, Beijing, 100142, China
| | - Hongyu Tan
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Anesthesiology, Peking University Cancer Hospital & Institute, #52 Fucheng Street, Haidian District, Beijing, 100142, China.
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Factors associated with failure of postoperative nausea and vomiting prophylaxis in a high complexity health center in Cali, Colombia. COLOMBIAN JOURNAL OF ANESTHESIOLOGY 2019. [DOI: 10.1097/cj9.0000000000000119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Künzli BM, Walensi M, Wilimsky J, Bucher C, Bührer T, Kull C, Zuse A, Maurer CA. Impact of drains on nausea and vomiting after thyroid and parathyroid surgery: a randomized controlled trial. Langenbecks Arch Surg 2019; 404:693-701. [PMID: 31243574 DOI: 10.1007/s00423-019-01799-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 06/10/2019] [Indexed: 01/19/2023]
Abstract
OBJECTIVE Nausea and vomiting are common side effects following thyroid and parathyroid surgery. In a prospective controlled randomized trial, postoperative nausea and vomiting (PONV) and the number of episodes of vomiting were defined as two primary endpoints. We analysed whether the placement of drains after thyroid or parathyroid surgery enhances PONV and/or influences vomiting. PATIENTS AND METHODS From November 2007 to January 2012, 136 consecutive patients were included for thyroid or parathyroid surgery and were randomly assigned to group A (drain, n = 69) or group B (no drain, n = 67). PONV was assessed with visual analogue scale (VAS; range 0 to 10) measurements. Furthermore, episodes of vomiting as well as analgetic and antiemetic therapies were recorded. Difference in neck circumference was compared pre- and postoperatively. RESULTS Patients' characteristics did not differ between group A and B. Postoperative VAS values for pain were 2.4 ± 0.3 (group A) and 2.6 ± 0.2 (group B) (p = 0.62), and for nausea 1.4 ± 0.2 (group A) and 1.1 ± 0.2 (group B) (p = 0.57). The relative occurrences of episodes for postoperative vomiting were equal in both groups 0.3 ± 0.1 (p = 1.0). Antiemetic drugs were administered 37 times (group A) and 18 times (group B) (p = 0.099). The total number of treatments of patients with antiemetic drugs was 23 (33.3%) in group A vs. 13 (19.4%) in group B (p = 0.081). The neck circumference postoperatively was significantly larger in group B (p = 0.0025). CONCLUSIONS Drains after surgery do not enhance postoperative pain, nausea and vomiting. The placement of drains in thyroid surgery is recommended to avoid relevant fluid collection. Drains however may influence the amount of antiemetic drug requirements. TRIAL REGISTRATION CLINICALTRIALS. GOV IDENTIFIER NCT01679418.
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Affiliation(s)
- B M Künzli
- Department of Surgery, Hospital of Baselland, Affiliated with the University of Basel, Liestal, Switzerland.,Department of Surgery, St. Josef-Hospital, Ruhr-University Bochum, Bochum, Germany
| | - M Walensi
- Department of Surgery, Hospital of Baselland, Affiliated with the University of Basel, Liestal, Switzerland
| | - J Wilimsky
- Department of Surgery, Hospital of Baselland, Affiliated with the University of Basel, Liestal, Switzerland
| | - C Bucher
- Department of Surgery, Hospital of Baselland, Affiliated with the University of Basel, Liestal, Switzerland
| | - T Bührer
- Department of Surgery, Hospital of Baselland, Affiliated with the University of Basel, Liestal, Switzerland
| | - C Kull
- Department of Surgery, Hospital of Baselland, Affiliated with the University of Basel, Liestal, Switzerland
| | - A Zuse
- Department of Surgery, HIRSLANDEN Private Hospital Group, Klinik Beau-Site, Schänzlihalde 1, CH - 3013, Bern, Switzerland
| | - C A Maurer
- Department of Surgery, Hospital of Baselland, Affiliated with the University of Basel, Liestal, Switzerland. .,Department of Surgery, HIRSLANDEN Private Hospital Group, Klinik Beau-Site, Schänzlihalde 1, CH - 3013, Bern, Switzerland.
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Chung PK, Dhanrajani P. Comparative randomized study of propofol target-controlled infusion versus sevoflurane anesthesia for third molar extraction. J Dent Anesth Pain Med 2018; 18:169-175. [PMID: 29984321 PMCID: PMC6031969 DOI: 10.17245/jdapm.2018.18.3.169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 06/15/2018] [Accepted: 06/18/2018] [Indexed: 11/15/2022] Open
Abstract
Background The objective of this study was to compare hemodynamic and recovery characteristics of total intravenous anesthesia using propofol target-controlled infusion (TCI) versus sevoflurane for extraction of four third molar teeth. Methods One hundred patients undergoing extraction of four third molar teeth under general anesthesia were randomized to one of two groups. Group 1 received propofol TCI-oxygen for induction and propofol TCI-oxygen-air for maintenance. Group II received a propofol bolus of 2 mg/kg for induction and sevoflurane-oxygen-air for maintenance. Heart rate, mean arterial pressure (MAP), operating time, time to emergence, nausea and vomiting, and sedation and pain scores were measured in each group. Results Demographic data, including age, gender, weight, and height, were not significantly different between the two groups. The MAP was significantly higher after intubation (P = 0.007) and injection of anesthesia (P = 0.004) in the propofol group than in the sevoflurane group, with significant reflex bradycardia (P = 0.028). The mean time to emergence from anesthesia using propofol was 25 s shorter than that of sevoflurane (P = 0.02). Postoperatively, the propofol group was less sedated than the sevoflurane group at 30 min (0.02 versus 0.12), but this difference was not significant (P = 0.065). Conclusion Both propofol TCI and sevoflurane are good alternatives for induction and maintenance of anesthesia for short day-case surgery. However, propofol TCI does not blunt the hemodynamic response to sudden, severe stimuli as strongly as sevoflurane, and this limitation may be a cause for concern in patients with cardiac comorbidities.
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Lu IC, Lin IH, Wu CW, Chen HY, Lin YC, Chiang FY, Chang PY. Preoperative, intraoperative and postoperative anesthetic prospective for thyroid surgery: what's new. Gland Surg 2017; 6:469-475. [PMID: 29142836 DOI: 10.21037/gs.2017.05.02] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The aim of this review is to analyze what's new on anesthetic prospective to perioperative management for thyroid surgery. For recent decades intraoperative neuromonitoring (IONM) during thyroid and parathyroid surgery has obtained more and more popularity. New modality of anesthetic technique was also developed to incorporate into surgical teamwork. For example, the precise position of EMG tube and optimal use of neuromuscular blocking agents (NMBAs) play key roles in successful IONM system. Special focus is paid to following issues: (I) preoperative airway evaluation and pre-op preparation; (II) anesthetic managements including advanced intubation tools, NMBAs and sugammadex; and (III) post-op adverse events such as pain and postoperative nausea vomiting.
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Affiliation(s)
- I-Cheng Lu
- Department of Anesthesiology, Kaohsiung Municipal Hsiao-Kang Hospital, Taiwan.,Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - I-Hua Lin
- Department of Anesthesiology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Che-Wei Wu
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Otolaryngology-Head and Neck Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Hsiu-Ya Chen
- Department of Anesthesiology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Yi-Chu Lin
- Department of Otolaryngology-Head and Neck Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Feng-Yu Chiang
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Otolaryngology-Head and Neck Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Pi-Ying Chang
- Department of Anesthesiology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan
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Tang L, Liu H, Wu Y, Li M, Li W, Jiang M, Hou J, Jiang Y, Xia Z, Meng Q. Sevoflurane may be more beneficial than propofol in patients receiving endoscopic variceal ligation and endoscopic variceal sclerotherapy: A randomized, double-blind study. Exp Ther Med 2017; 14:3145-3152. [PMID: 28966686 DOI: 10.3892/etm.2017.4919] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2016] [Accepted: 05/31/2017] [Indexed: 12/25/2022] Open
Abstract
The aim of the present study was to evaluate the safety and efficacy of various general anesthesia regimens during endoscopic variceal ligation (EVL) and endoscopic variceal sclerotherapy (EVS). A total of 123 patients with American Society of Anesthesiologists physical status III and IV, aged 40-70 years, undergoing general anesthesia for EVL and EVS were randomly divided into two groups: Sevoflurane anesthesia (group S; n=60) and propofol anesthesia (group P; n=60). Vital signs, particularly heart rate (HR) and mean arterial pressure (MAP), were monitored. The designated time points were as follows: 5 min before induction (T0), and 1, 5, 10, 15, 20, 25 and 30 min after intubation (T1, T2, T3, T4, T5, T6 and T7, respectively). Time intervals were recorded, including recovery time and extubation time. Following surgery, the observer recorded the Ramsay sedation scale (RSS) score and the visual analogue scale (VAS) score. Adverse reactions were noted. Results demonstrated that there were significant differences in MAP between the two groups at T2, T3, T5, T6 and T7 (P<0.05). There was a significant difference in HR between the two groups at T2, T3 and T4 (P<0.05). Recovery time and extubation time in group P were significantly longer than those in group S (P<0.05; 18.38±2.25 min vs. 14.57±1.04 min and 21.70±2.70 min vs. 15.83±0.88 min, respectively). The rate of ephedrine injected was 58.3% (35/60 patients) in group P vs. 28.3% (17/60 patients) in group S (P<0.05). There was a significant difference in the RSS score between the two groups 5 min after extubation (P<0.05). VRS scores demonstrated that anesthetists and patients were significantly more satisfied with the procedure in group S than in group P (P<0.01). In conclusion, the superiority and special clinical value of inhalational anesthesia has been demonstrated during EVL and EVS attributed to stable hemodynamics and high quality of anesthesia recovery in the present study.
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Affiliation(s)
- Linghua Tang
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Huimin Liu
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Yang Wu
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Mei Li
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Wei Li
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Meng Jiang
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Jiabao Hou
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Ying Jiang
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Zhongyuan Xia
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Qingtao Meng
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
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Chang CC, Wong CS. Postoperative nausea and vomiting free for all: A solution from propofol? ACTA ACUST UNITED AC 2017; 54:106-107. [PMID: 28089637 DOI: 10.1016/j.aat.2016.12.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Accepted: 12/19/2016] [Indexed: 11/29/2022]
Affiliation(s)
- Chuen-Chau Chang
- Department of Anesthesiology, Taipei Medical University Hospital, Taipei, Taiwan; Health Policy Research Center, Taipei Medical University Hospital, Taipei, Taiwan; Department of Anesthesiology, School of Medicine, College of Medicine, Taipei Medical University, 250 Wuxing St., Taipei, 11031, Taiwan.
| | - Chih-Shung Wong
- Department of Anesthesiology, Cathay General Hospital, #280, Renai Road, Section 4, Taipei, 10630, Taiwan
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