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Omidvar S, Ebrahimi F, Amini N, Modir H, Kia MK, Rahmaty B, Zarei A. Comparing the Effect of Ketamine and Lidocaine on Agitation and Pain in Rhinoplasty: A Randomized Clinical Trial. J Cutan Aesthet Surg 2023; 16:107-113. [PMID: 37554677 PMCID: PMC10405540 DOI: 10.4103/jcas.jcas_205_22] [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] [Indexed: 08/10/2023] Open
Abstract
Background Emergence agitation (EA) is an important clinical problem that occurs during the initial period of recovery from anesthesia. This study aimed to determine the effects of ketamine and lidocaine administered on agitation level, postoperative pain, and hemodynamic changes in adults after rhinoplasty. Materials and Methods Totally 72 patients scheduled to undergo elective rhinoplasty were enrolled in this prospective study. Patients were randomly divided into three groups including control group (n = 24), ketamine group (n = 24), and lidocaine group (n = 24). Twenty minutes before surgery completion, 1 ml saline was administered intravenously to the saline group, while 0.5 mg/kg ketamine or 1.5 mg/kg lidocaine was administered to two other groups. The emergence agitation level of the patients was evaluated using the Richmond Agitation-Sedation Scale just after extubation and in the post-anesthesia care unit (PACU). Postoperative pain was evaluated by Numerical Rating Scale that scored (from 0 to 10) every 10 min until the patients were discharged from PACU. Results There was a significant difference between EA level between ketamine (P = 0.049) and lidocaine (P = 0.019) groups compared to the control group, and there was a significant difference between pain level between the ketamine (P = 0.008) and lidocaine (P = 0.035) groups compared the to control group, while there was no significant difference between the level of agitation (P = 0.922) and level of pain (P = 0.845) after extubation between the ketamine and lidocaine groups. Conclusion Ketamine and lidocaine are highly effective in preventing EA and pain control. Further studies with a greater sample size and longer follow-up period are needed to confirm the current findings.
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Affiliation(s)
- Safoora Omidvar
- Department of Paramedicine, Arak University of Medical Sciences, Arak, Iran
| | - Fatemeh Ebrahimi
- Department of Paramedicine, Arak University of Medical Sciences, Arak, Iran
| | - Nazanin Amini
- Department of Paramedicine, Arak University of Medical Sciences, Arak, Iran
| | - Hesameddin Modir
- Department of Anesthesiology, Faculty of Medicine, Arak University of Medical Sciences, Arak, Iran
| | | | - Benyamin Rahmaty
- Department of ENT, Faculty of Medicine, Arak University of Medical Sciences, Arak, Iran
| | - Aref Zarei
- Student Research Committee, Arak University of Medical Sciences, Arak, Iran
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Modir H, Moshiri E, Shakeri A, Khalatbari M. Comparison of the effects of tranexamic acid, nitroglycerin, and remifentanil on the prevention of bleeding during herniated lumbar intervertebral disc surgery: A randomized clinical trial. Int J Crit Illn Inj Sci 2023; 13:18-25. [PMID: 37180305 PMCID: PMC10167810 DOI: 10.4103/ijciis.ijciis_40_22] [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: 05/14/2022] [Revised: 07/20/2022] [Accepted: 07/26/2022] [Indexed: 05/16/2023] Open
Abstract
Background Surgery is a well-known and effective method of treating lumbar intervertebral disc herniation. The present study aimed to compare the effects of administering tranexamic acid (TXA), nitroglycerin (NTG), and remifentanil (REF) on hemorrhage prevention during herniated lumbar intervertebral disc surgery. Methods A double-blind clinical trial was conducted on 135 participants undergoing lumbar intervertebral disc surgery. A randomized block design was used for subject assignment to three groups including TXA, NTG, and REF. The hemodynamic parameters, bleeding rate, hemoglobin level, and the amount of infused propofol were measured and recorded after surgery. Data were then analyzed in SPSS software using Chi-square test and analysis of variance. Results The mean age of participants in the study was 42.12 ± 7.93 years, and all three groups were equal in terms of demographic characteristics (P > 0.05). The mean arterial pressure (MAP) of the TXA and NTG groups was notably higher than the REF group (P < 0.008). The mean heart rate (HR) of the TXA and NTG groups was notably higher than the REF group (P < 0.05). The propofol dosage used in the TXA group was higher than the two groups of NTG and REF (P < 0.001). Conclusion Among participants undergoing lumbar intervertebral disc surgery, the greatest MAP variability was observed in the NTG group. Higher mean HR and propofol consumption was observed in the NTG and TXA groups when compared to REF. No statistically significant differences were noted between groups in oxygen saturation or bleeding risk. Based on these findings, REF may be considered a preferred surgical adjunct over TXA and NTG during lumbar intervertebral disc surgery.
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Affiliation(s)
- Hesameddin Modir
- Department of Anesthesiology and Critical Care, Arak University of Medical Sciences, Arak, Iran
| | - Esmail Moshiri
- Department of Anesthesiology and Critical Care, Arak University of Medical Sciences, Arak, Iran
| | - Aidin Shakeri
- Department of Neurosurgery, Arak University of Medical Sciences, Arak, Iran
| | - Mohamad Khalatbari
- Department of Anesthesiology, Students Research Committee, Arak University of Medical Sciences, Arak, Iran
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Jouybar R, Nemati M, Asmarian N. Comparison of the effects of remifentanil and dexmedetomidine on surgeon satisfaction with surgical field visualization and intraoperative bleeding during rhinoplasty. BMC Anesthesiol 2022; 22:24. [PMID: 35031005 PMCID: PMC8759207 DOI: 10.1186/s12871-021-01546-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Accepted: 12/13/2021] [Indexed: 12/03/2022] Open
Abstract
OBJECTIVE We aimed to compare the effect of dexmedetomidine with remifentanil on hemodynamic stability, surgical field quality, and surgeon satisfaction during rhinoplasty. METHODS AND MATERIALS In this double-blind randomized controlled-trial, 60 participants scheduled for rhinoplasty at the Mother and Child Hospital, Shiraz, Iran, was randomely divided into the dexmedetomidine group (IV infusion of 1 μg/kg dexmedetomidine over 20 min before induction of anesthesia then 0.6 μg/kg/hr. dexmedetomidine from the time of induction until the end of the operation) or in the the remifentanil group (an infusion rate of 0.25 μg/kg/min from the time of anesthesia induction until the end of the operation). Bleeding volume, surgeon satisfaction, postoperative pain (visual analog scale (VAS)), Level of sedation (Richmond Agitation Sedation Scale (RASS)), Patient satisfaction, Vital signs & recovery, and the Aldrete Score (used to discharge the patients from recovery) were measured for all participants. RESULTS The patients in the dexmedetomidine group had less bleeding (p = 0.047) and shorter time to return of respiration, extubation, and the postoperative recovery time (p < 0.001). The surgeon satisfaction was higher in the dexmedetomidine group (p < 0.001). Patient satisfaction was significantly different between the two groups (p < 0.001). VAS scores, intaking paracetamol, and RASS score were significantly lower in the remifentanil group (p < 0.001). SBP, DBP, MAP, and heart rate were lower in dexmedetomidine group. CONCLUSION Dexmedetomidine was associated with relatively stable hemodynamics, leading to decreased intraoperative bleeding, recovery time, and greater surgeon satisfaction and the level of consciousness in the recovery ward. However, painlessness and patient satisfaction were greater with the use of remifentanil. TRIAL REGISTRATION IRCT20141009019470N112 .
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Affiliation(s)
- Reza Jouybar
- Anesthesiology and Critical Care Research Center, Shiraz University of Medical Sciences, Shiraz, 71937-11351, Iran.
| | - Maryam Nemati
- Anesthesiology and Critical Care Research Center, Shiraz University of Medical Sciences, Shiraz, 71937-11351, Iran
| | - Naeimehossadat Asmarian
- Anesthesiology and Critical Care Research Center, Shiraz University of Medical Sciences, Shiraz, 71937-11351, Iran
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Modir H, Nikoohemmat M, Moshiri E, Shakeri A. Comparing the bleeding control effect of labetalol, remifentanil and dexmedetomidine during craniotomy; A randomised clinical trial. ADVANCES IN HUMAN BIOLOGY 2022. [DOI: 10.4103/aihb.aihb_61_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Mahmoodiyeh B, Modir H, Moradi A, Mohseni F, Almasi-Hashiani A. Comparison of the efficacy of supraclavicular block with bupivacaine (0.5%) combined with dexmedetomidine, granisetron and magnesium sulphate in sensory and motor block and haemodynamic parameters of patients in upper-extremity orthopaedic surgery: A randomised clinical study. ADVANCES IN HUMAN BIOLOGY 2022. [DOI: 10.4103/aihb.aihb_170_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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Shafa A, Aledavud H, Shetabi H, Shahhosseini S. Effects of the Two Doses of Dexmedetomidine on Sedation, Agitation, and Bleeding During Pediatric Adenotonsillectomy. Anesth Pain Med 2021; 11:e118424. [PMID: 35075412 PMCID: PMC8782060 DOI: 10.5812/aapm.118424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 10/13/2021] [Accepted: 10/17/2021] [Indexed: 11/26/2022] Open
Abstract
Background Due to the importance of dexmedetomidine and its different dosages, here, we aimed to investigate and compare the effectiveness of the doses of 1 µg/kg and 2 µg/kg of dexmedetomidine in sedation, agitation, and bleeding in pediatrics undergoing adenotonsillectomy. Methods This double-blinded randomized clinical trial was performed on 105 pediatric patients that were candidates for adenotonsillectomy. Then, the patients were divided into three groups receiving dexmedetomidine at a dose of 2 µg/kg, diluted dexmedetomidine at 1 µg/kg, and normal saline. The drugs were administered 15 minutes before operations via the intravenous method. The duration of extubation, mean arterial pressure (MAP), heart rate (HR), and SPO2 in the recovery were recorded. We also collected data regarding patients’ sedation and agitation every 15 minutes. Results Our data showed no significant differences between the groups of patients regarding MAP, HR, and SPO2. However, the mean sedation score was significantly higher in patients receiving dexmedetomidine (2 µg/kg), and this score was lowest in the control group at the time of entrance to the recovery room. The patients that received dexmedetomidine at a dose of 1 µg/kg had the lowest agitation score after 45 minutes of being in the recovery room, and the patients treated with dexmedetomidine at a dose of 2 µg/kg had the lowest agitation score after 60 minutes of being in the recovery compared to other groups of patients. Conclusions The use of the doses of 1 µg/kg and 2 µg/kg of dexmedetomidine was associated with proper sedation and a significant reduction in agitation. The patients also had lower amounts of bleeding. We recommend that anesthesiologists should pay more attention to dexmedetomidine at a dose of 2 µg/kg, especially in pediatric surgical procedures.
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Affiliation(s)
- Amir Shafa
- Anesthesiology Department, Isfahan University of medical Sciences, Isfahan, Iran
| | - Hastisadat Aledavud
- School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
- Corresponding Author: School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Hamidreza Shetabi
- Anesthesiology Department, Isfahan University of medical Sciences, Isfahan, Iran
| | - Sedige Shahhosseini
- Anesthesiology Department, Isfahan University of medical Sciences, Isfahan, Iran
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Yang Y, Li Y, Zhang H, Xu Y, Wang B. The efficacy of computer-assisted cognitive behavioral therapy (cCBT) on psychobiological responses and perioperative outcomes in patients undergoing functional endoscopic sinus surgery: a randomized controlled trial. Perioper Med (Lond) 2021; 10:28. [PMID: 34407884 PMCID: PMC8375045 DOI: 10.1186/s13741-021-00195-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 05/31/2021] [Indexed: 01/06/2023] Open
Abstract
Background Functional endoscopic sinus surgery (FESS) is required to minimize bleeding to maintain a clear operative field during surgery, so it is important to preoperative anti-anxiety and stable hemodynamics. Initial evidence suggests cognitive behavioral therapy (CBT) is effective to minimize surgery-related stress and to speed up recovery. The study aimed to evaluate the efficacy of a newly developed computer-assisted CBT (cCBT) program on surgery-related psychobiological responses in patients undergoing FESS. Methods Participants were allocated to a CCBT group (cCBT; n = 50) or a UC group (usual care; n = 50) by random number table. The State Anxiety Inventory (SAI), Patients Health Questionnaire-9 (PHQ-9), Athens Insomnia Scale (AIS), systolic blood pressure (SBP), diastolic blood pressure (DBP), and heart rate (HR) were assessed before intervention (T1), at 1 h before operation (T2), at postoperative 48 h (T3), and 96 h (T4: after intervention completed) respectively. The stress hormone was assayed at T1 and T2. The duration of surgery, anesthesia, and post-anesthesia care unit (PACU) were recorded. A satisfaction survey about nursing services was completed by participants before discharge. Results Compared to the UC group, the SAI scores at T2 and the AIS scores at T3 were lower in the CCBT group (p < 0.01 and p = 0.002). The positive rate of participants who were moderate and severe anxiety (SAI score > 37) at T2 were lower (72% vs. 88%, p = 0.04); the cortisol levels, SBP, DBP, and HR at T2 in the CCBT group were lower (p = 0.019 and all p < 0.01); the duration of anesthesia and PACU was shorter (p = 0.001 and p < 0.01); the CCBT group showed higher satisfaction scores. Conclusion The newly developed cCBT program was an effective non-pharmacological adjunctive treatment for improving the surgery-related psychosomatic responses and perioperative outcomes. Trial registration The study was registered with the Chinese Clinical Trial Registry (ChiCTR1900025994) on 17 September 2019. Supplementary Information The online version contains supplementary material available at 10.1186/s13741-021-00195-3.
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Affiliation(s)
- Yang Yang
- Nursing College, Shanxi Medical University, Taiyuan, People's Republic of China.,Nursing Department, The First Hospital of Shanxi Medical University, Taiyuan, People's Republic of China
| | - Yuling Li
- Nursing Department, The First Hospital of Shanxi Medical University, Taiyuan, People's Republic of China
| | - Haibin Zhang
- Department of Anesthesia, The First Hospital of Shanxi Medical University, Taiyuan, People's Republic of China
| | - Yong Xu
- Department of Psychiatry, The First Hospital of Shanxi Medical University, Taiyuan, People's Republic of China. .,Shanxi Key Laboratory of Artificial Intelligence Assisted Diagnosis and Treatment for Mental Disorder, The First Hospital of Shanxi Medical University, Taiyuan, People's Republic of China.
| | - Binquan Wang
- Department of Otorhinolaryngology Head and Neck Surgery, The First Hospital of Shanxi Medical University, Taiyuan, People's Republic of China. .,Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, The First Hospital of Shanxi Medical University, Taiyuan, Shanxi, People's Republic of China.
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Modir H, Moshiri E, Yazdi B, Kamalpour T, Goodarzi D, Mohammadbeigi A. Efficacy of dexmedetomidine-ketamine vs. fentanylketamine on saturated oxygen, hemodynamic responses and sedation in cystoscopy: a doubleblinded randomized controlled clinical trial. Med Gas Res 2021; 10:91-95. [PMID: 33004704 PMCID: PMC8086618 DOI: 10.4103/2045-9912.296037] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Cystoscopy is a diagnostic and invasive procedure for treatment and follow-up of genitourinary system patients and could be performed with a variety of anesthesia techniques. The study aimed to assess the efficacy of dexmedetomidine-ketamine vs. fentanyl-ketamine on sedation and analgesia for cystoscopy. This double-blind randomized controlled clinical trial enrolled 60 patients undergoing cystoscopy in two groups. Patients were assigned randomly by block random allocation method into dexmedetomidine-ketamine group (1 μg/kg dexmedetomidine) and fentanyl-ketamine group (2 μg/kg fentanyl) receiving ketamine (0.5 mg/kg). Subsequently, mean blood pressure, heart rate, saturated oxygen, respiratory rate, pain intensity, Ramsay score for sedation level, cystoscopy duration, and urologic satisfaction were measured and compared between two groups. Both the groups were similar regarding age, sex and baseline hemodynamic parameters (P > 0.05). Lower heart rate and pain score were revealed in the dexmedetomidine-ketamine group at 25–50 and 30–60 minutes, respectively, after cystoscopy (P < 0.05). Moreover, repeated measure test showed that there was significant difference in trend of respiratory rate and pain score between two groups (P = 0.017) and was lower in dexmedetomidine-ketamine group. The dexmedetomidine-ketamine group relieves pain 30 minutes after cystoscopy with stable hemodynamic parameters during operation. Therefore, dexmedetomidine-ketamine is recommended to be employed for pain relief in subjects undergoing cystoscopy. The study was approved by Ethical Committee of Arak University of Medical Sciences with IR.ARAKMU.REC.1397.108 on July 2, 2018, and registered in Iranian Registry Clinical Trial center with code IRCT20141209020258N105 on April 21, 2019.
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Affiliation(s)
- Hesameddin Modir
- Departments of Anesthesiology and Critical Care, Arak University of Medical Sciences, Arak, Iran
| | - Esmail Moshiri
- Departments of Anesthesiology and Critical Care, Arak University of Medical Sciences, Arak, Iran
| | - Bijan Yazdi
- Departments of Anesthesiology and Critical Care, Arak University of Medical Sciences, Arak, Iran
| | - Tannaz Kamalpour
- Students Research Committee, Arak University of Medical Sciences, Arak, Iran
| | - Davood Goodarzi
- Department of Urologic Surgery, Arak University of Medical Sciences, Arak, Iran
| | - Abolfazl Mohammadbeigi
- Department of Epidemiology and Biostatistics, Neuroscience Research Center, Qom University of Medical Sciences, Qom, Iran
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Abdelraheem TM, Elkeblawy AM. Remifentanil versus labetalol for deliberate hypotensive anesthesia in children undergoing cochlear implantation: A randomized clinical trial. EGYPTIAN JOURNAL OF ANAESTHESIA 2021. [DOI: 10.1080/11101849.2021.1935125] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Affiliation(s)
- Taysser M. Abdelraheem
- Anesthesiology, Surgical Intensive Care and Pain Medicine Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Amira M. Elkeblawy
- Anesthesiology, Surgical Intensive Care and Pain Medicine Department, Faculty of Medicine, Tanta University, Tanta, Egypt
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Lang B, Zhang L, Lin Y, Zhang W, Li FS, Chen S. Comparison of effects and safety in providing controlled hypotension during surgery between dexmedetomidine and magnesium sulphate: A meta-analysis of randomized controlled trials. PLoS One 2020; 15:e0227410. [PMID: 31914454 PMCID: PMC6949117 DOI: 10.1371/journal.pone.0227410] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 12/18/2019] [Indexed: 02/05/2023] Open
Abstract
Background Effectiveness of controlled hypotension has been proven in alleviating intraoperative bleeding. Many recent studies emphasized the efficacy of dexmedetomidine and magnesium in providing controlled hypotension during various surgeries. The present meta-analysis of randomized controlled trials (RCTs) was performed to evaluate comprehensively the effects and safety of these two medications. Methods Literature search was performed in four databases from inception to April 2019. All RCTs that used dexmedetomidine and magnesium as hypotensive agents were enrolled. The outcomes contained bleeding condition of surgical site, hemodynamic parameters, duration of surgeries, number of patients requiring opioid/analgesia administration, recovery period, and adverse events emerged during surgeries. Results Ten studies with 663 patients met with our inclusion criteria. The results indicated that both bleeding score and values of mean arterial pressure (MAP) and heart rate (HR) were significantly lower in patients receiving dexmedetomidine (SMD 1.65 with 95% CI [0.90,2.41], P<0.00001) compared to the patients receiving magnesium. The effect in decreasing the necessity of using opioid/analgesia was affirmative in dexmedetomidine group (29.13% with magnesium vs 10.78% with dexmedetomidine), and the condition was more favorable in magnesium group in reducing recovery period (SMD -1.98 with 95% CI [-4.27,0.30], P = 0.09). Compared with magnesium, using of dexmedetomidine was associated with higher incidence of bradycardia but lower incidence of nausea and vomiting. Conclusion Compared with magnesium, dexmedetomidine is more effective to provide promising surgical field condition, favorable controlled hypotension, and less necessity of opioid or analgesia administration. But long recovery period and high-probability bradycardia should be deliberated.
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Affiliation(s)
- Bingchen Lang
- Department of Pharmacy, West China Second University Hospital, Sichuan University, Chengdu, People’s Republic of China
| | - Lingli Zhang
- Department of Pharmacy, West China Second University Hospital, Sichuan University, Chengdu, People’s Republic of China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, People’s Republic of China
- Evidence-Based Pharmacy Center, West China Second University Hospital, Sichuan University, Chengdu, People’s Republic of China
- * E-mail:
| | - Yunzhu Lin
- Department of Pharmacy, West China Second University Hospital, Sichuan University, Chengdu, People’s Republic of China
| | - Wensheng Zhang
- Department of Anesthesiology, Laboratory of Anesthesia and Critical Care Medicine, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, People’s Republic of China
| | - Feng-shan Li
- Department of Pharmacy, West China Second University Hospital, Sichuan University, Chengdu, People’s Republic of China
| | - Shouming Chen
- Department of Anesthesiology, West China Second University Hospital, Sichuan University, Chengdu, People’s Republic of China
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Grape S, Kirkham KR, Frauenknecht J, Albrecht E. Intra‐operative analgesia with remifentanil vs. dexmedetomidine: a systematic review and meta‐analysis with trial sequential analysis. Anaesthesia 2019; 74:793-800. [DOI: 10.1111/anae.14657] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/11/2019] [Indexed: 12/16/2022]
Affiliation(s)
- S. Grape
- Department of Anaesthesia Valais Hospital Switzerland
| | - K. R. Kirkham
- Department of Anaesthesia Toronto Western Hospital University of Toronto Toronto Canada
| | - J. Frauenknecht
- Department of Anaesthesia Lausanne University Hospital LausanneSwitzerland
| | - E. Albrecht
- Department of Anaesthesia Lausanne University Hospital LausanneSwitzerland
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