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Wang P, Xue S, Zhang L, Gao K, Wang Y. Determination of ED 50 and ED 95 of remimazolam besylate combined with alfentanil for adult gastroscopy: a prospective dose-finding study. BRAZILIAN JOURNAL OF ANESTHESIOLOGY (ELSEVIER) 2024; 74:844518. [PMID: 38789004 PMCID: PMC11167255 DOI: 10.1016/j.bjane.2024.844518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 05/10/2024] [Accepted: 05/14/2024] [Indexed: 05/26/2024]
Abstract
BACKGROUND To explore the median effective dose (ED50) and 95% effective dose (ED95) of remimazolam besylate combined with alfentanil for adult gastroscopy. METHODS This prospective studyenrolled 31 patients scheduled to painless gastroscopy at Anhui No. 2 Provincial People's Hospital between April and May, 2022. 5 µg.kg-1 of alfentanil hydrochloride was used for pre-analgesia. The initial single loading dose of remimazolam besylate was 0.12 mg.kg-1, increased or reduced by 0.01 mg.kg-1 for the next patient with modified Dixon sequential method. The modified Observer's Assessment of Alertness/Sedation Scale (MOAA/S) was used to assess sedation. RESULTS Combined with alfentanil, the ED50 of remimazolam besylate was 0.147 mg.kg-1 (95% CI: 0.138-0.160 mg.kg-1) and ED95 0.171 mg.kg-1 (95% CI: 0.159-0.245 mg.kg-1). The induction time after injection of remimazolam besylate was 70 ± 25 s, with the anesthesia recovery time and the observation time in resuscitation room 5.13 ± 2.13 min and 2.32 ± 1.6 min, respectively. Twenty nine patients' vital signs were within acceptable limits during gastroscopy. CONCLUSIONS The ED50 of remimazolam besylate combined with alfentanil for painless gastroscopy was 0.147 mg.kg-1, and the ED95 was 0.171 mg.kg-1.
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Affiliation(s)
- Pingjuan Wang
- The Fifth Clinical Medical College of Anhui Medical University, Anhui nº 2 Provincial People's Hospital, Hefei, Anhui, China
| | - Song Xue
- The Fifth Clinical Medical College of Anhui Medical University, Anhui nº 2 Provincial People's Hospital, Hefei, Anhui, China
| | - Liufei Zhang
- The Fifth Clinical Medical College of Anhui Medical University, Anhui nº 2 Provincial People's Hospital, Hefei, Anhui, China
| | - Kunkun Gao
- The Fifth Clinical Medical College of Anhui Medical University, Anhui nº 2 Provincial People's Hospital, Hefei, Anhui, China
| | - Yiqiao Wang
- The Fifth Clinical Medical College of Anhui Medical University, Anhui nº 2 Provincial People's Hospital, Hefei, Anhui, China.
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Huang B, Li NP, Tan GK, Liang N. Effectiveness and safety of remimazolam combined with alfentanil in hysteroscopic examination: A prospective, randomized, single-blind trial. Medicine (Baltimore) 2024; 103:e37627. [PMID: 38608088 PMCID: PMC11018237 DOI: 10.1097/md.0000000000037627] [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] [Received: 01/06/2024] [Accepted: 02/26/2024] [Indexed: 04/14/2024] Open
Abstract
BACKGROUND Remimazolam is a novel, ultrashort-acting benzodiazepine. This study aimed to compare the efficacy and safety of remimazolam and propofol for hysteroscopic examination, to determine the optimal dose of remimazolam combined with alfentanil for painless hysteroscopy, and to calculate its median effective dose (ED50). METHODS Step 1: A total of 208 patients undergoing hysteroscopic examination were prospectively included in this study. Patients were randomized into 4 groups: 0.2 mg/kg remimazolam (group A), 0.25 mg/kg remimazolam besylate (group B), 0.3 mg/kg remimazolam (group C), and 2 mg/kg propofol (group D), with 52 patients in each group. One minute after losing consciousness, patients received an intravenous injection of alfentanil at 5 µg/kg, followed by a continuous infusion of alfentanil at 0.5 µg/kg/min. If patients showed frowning, movement, or MOAA/S > 1, sedatives were added: 0.05 mg/kg/dose of remimazolam for groups A, B, and C, and 0.5 mg/kg/dose of propofol for group D. Step 2: Dixon's up-and-down method was used to calculate the ED50 of remimazolam combined with alfentanil during hysteroscopic examination. MAIN RESULTS The sedation success rates of the remimazolam groups were 88.46%, 94.23%, and 98.08%, respectively, compared to 96.15% in the propofol group, with no significant difference (P = .175). MAP in groups A and B was higher than in group D (P < .05), and significantly higher in group C than in group D (P = .0016). SpO2 values in groups A, B, and C were higher than in group D at T2 to T3 (P < .001). HR in groups A, B, and C was significantly higher than in group D (P < .001). The ED50 of remimazolam combined with alfentanil in hysteroscopy was 0.244 mg/kg, 95%CI (0.195-0.22) and ED95 was 0.282 mg/kg, 95%CI (0.261-1.619). CONCLUSION In hysteroscopy, the sedative effect of remimazolam is like that of propofol, with 0.25 mg/kg remimazolam showing better safety and efficacy, and less impact on the respiratory and circulatory systems. Additionally, under the influence of alfentanil, the ED50 of remimazolam in hysteroscopy is 0.244 mg/kg, with no severe adverse reactions observed.
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Affiliation(s)
- Bei Huang
- The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- The Affiliated Nanhua Hospital, Department of Anesthesiology, Hengyang Medical School, University of Suth China, Hengyang, Hunan, China
| | - Nan-Ping Li
- The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- The Affiliated Nanhua Hospital, Department of Anesthesiology, Hengyang Medical School, University of Suth China, Hengyang, Hunan, China
| | - Gang-Kai Tan
- The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- The Affiliated Nanhua Hospital, Department of Anesthesiology, Hengyang Medical School, University of Suth China, Hengyang, Hunan, China
| | - Na Liang
- The Affiliated Nanhua Hospital, Department of Anesthesiology, Hengyang Medical School, University of Suth China, Hengyang, Hunan, China
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Chen D, Liao M, Wu XR, Zhao TYM, Sun H. Comparison of efficacy and safety of equivalent doses of remimazolam versus propofol for gastroscopy anesthesia in elderly patients. Sci Rep 2024; 14:7645. [PMID: 38561361 PMCID: PMC10984999 DOI: 10.1038/s41598-024-58294-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Accepted: 03/27/2024] [Indexed: 04/04/2024] Open
Abstract
Remimazolam, a novel intravenous anesthetic, has been proven to be safe and efficacious in the gastroscopy setting among the elderly. However, reports comparing the effectiveness and safety of using equivalent doses of remimazolam with propofol have not been seen. The aim of this study was to compare the sedation efficacy and safety of the 95% effective doses (ED95) of remimazolam versus propofol combined with sufentanil in the gastroscopy setting among the elderly. In the first step of this two-step study, a modified up-and-down method was used to calculate the ED95 of remimazolam and propofol when combined with 0.1 µg/kg sufentanil in inhibiting body movement of elderly patients undergoing gastroscopy. In the second step, ED95 of both agents calculated in the first step were administered, endpoints of efficacy, safety, and incidence of adverse events were compared. A total of 46 individuals completed the first step. The ED95 of remimazolam was 0.163 mg/kg (95% CI 0.160-0.170 mg/kg), and that of propofol was 1.042 mg/kg (95% CI 1.007-1.112 mg/kg). In the second step, 240 patients completed the trial. The anesthetic effective rates of the remimazolam group and the propofol group were 78% and 83%, respectively, with no statistical difference (P = 0.312). Patients in the remimazolam group had more stable circulatory functions (P < 0.0001) and a lower incidence of pain on injection (3.3% vs. 19.5%, P < 0.0001). The incidence of hypotension was low in the remimazolam versus propofol group (15.6% vs. 39.0%, P < 0.0001). Overall adverse event was low in the remimazolam versus propofol group (21.3% vs. 62.7%, P < 0.0001).In this study, we found that when anesthesia was administered to elderly gastroscopy patients based on 95% effective doses of remimazolam and propofol, remimazolam was as effective as propofol, but was safer with a lower incidence of adverse events.Study registration: Chinese Clinical Trial Registry, ChiCTR2000034234. Registered 29/06/2020, https://www.chictr.org.cn .
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Affiliation(s)
- Di Chen
- The Second Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Min Liao
- The Second Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Xiao-Ru Wu
- The Second Affiliated Hospital of Hainan Medical University, Haikou, China
| | | | - Hu Sun
- The Second Affiliated Hospital of Hainan Medical University, Haikou, China.
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Gillis H, McKee C, Chenault K, Corridore M, Tobias JD. Preliminary Experience With Remimazolam for Procedural Sedation and as an Adjunct to General Anesthesia During Diagnostic and Interventional Cardiac Procedures. Cardiol Res 2024; 15:12-17. [PMID: 38464705 PMCID: PMC10923259 DOI: 10.14740/cr1595] [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: 11/27/2023] [Accepted: 01/12/2024] [Indexed: 03/12/2024] Open
Abstract
Background Remimazolam is a benzodiazepine which, like midazolam, has sedative, anxiolytic, and amnestic properties. Ester metabolism results in a half-life of 5 - 10 min, a limited context sensitive half-life, and rapid recovery when the infusion is discontinued. Methods Following the Institutional Review Board (IRB) approval, we performed a retrospective chart review of patients who received remimazolam in the cardiac catheterization, cardiac magnetic resonance imaging (MRI), and electrophysiology suites. The primary objective was to assess efficacy and safety. The secondary objective was to describe bolus and infusion dosing of remimazolam and the need for adjunctive agents to optimize procedural sedation conditions. Results The study cohort included 26 patients with a median age of 18 years and a total of 33 anesthetic encounters. The most common procedures were endomyocardial biopsy or isolated hemodynamic assessment (right or left heart catheterization). Remimazolam was the primary agent for sedation in 82% of the procedures. The majority of cases (25 encounters, 76%) included a bolus dose of remimazolam prior to the start of an infusion. For those patients who received a starting bolus dose, dosing typically ranged between 30 and 110 µg/kg. Continuous infusion rates of remimazolam varied from 5 to 20 µg/kg/min. No adverse hemodynamic or respiratory effects were noted. Midazolam, fentanyl, and dexmedetomidine were the most frequently used adjunctive agents. One patient required transition to general anesthesia due to the need for a surgical intervention based on the findings of the cardiac catheterization. All other patients were effectively sedated. Conclusions Our preliminary experience demonstrates that remimazolam effectively provided sedation for diagnostic and therapeutic cardiovascular procedures. Future studies are needed to further define dosing parameters for both bolus dosing and continuous infusion as well as to compare remimazolam to other commonly used for procedural sedation in patients with congenital and acquired heart disease.
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Affiliation(s)
- Holly Gillis
- Department of Anesthesiology and Pain Medicine, Nationwide Children's Hospital, Columbus, OH, USA
| | - Christopher McKee
- Department of Anesthesiology and Pain Medicine, Nationwide Children's Hospital, Columbus, OH, USA
- Department of Anesthesiology and Pain Medicine, The Ohio State University College of Medicine, Columbus, OH, USA
| | - Kristin Chenault
- Department of Anesthesiology and Pain Medicine, Nationwide Children's Hospital, Columbus, OH, USA
- Department of Anesthesiology and Pain Medicine, The Ohio State University College of Medicine, Columbus, OH, USA
| | - Marco Corridore
- Department of Anesthesiology and Pain Medicine, Nationwide Children's Hospital, Columbus, OH, USA
- Department of Anesthesiology and Pain Medicine, The Ohio State University College of Medicine, Columbus, OH, USA
| | - Joseph D Tobias
- Department of Anesthesiology and Pain Medicine, Nationwide Children's Hospital, Columbus, OH, USA
- Department of Anesthesiology and Pain Medicine, The Ohio State University College of Medicine, Columbus, OH, USA
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Yuan B, Huang X, Wen J, Peng M. Dexmedetomidine Pretreatment Confers Myocardial Protection and Reduces Mechanical Ventilation Duration for Patients Undergoing Cardiac Valve Replacement under Cardiopulmonary Bypass. Ann Thorac Cardiovasc Surg 2024; 30:23-00210. [PMID: 38684422 PMCID: PMC11082494 DOI: 10.5761/atcs.oa.23-00210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 03/25/2024] [Indexed: 05/02/2024] Open
Abstract
PURPOSE The study aims to assess the effects of dexmedetomidine (Dex) pretreatment on patients during cardiac valve replacement under cardiopulmonary bypass. METHODS For patients in the Dex group (n = 52), 0.5 μg/kg Dex was given before anesthesia induction, followed by 0.5 μg/kg/h pumping injection before aortic occlusion. For patients in the control group (n = 52), 0.125 ml/kg normal saline was given instead of Dex. RESULTS The patients in the Dex group had longer time to first dose of rescue propofol than the control group (P = 0.003). The Dex group required less total dosage of propofol than the control group (P = 0.0001). The levels of cardiac troponin I (cTnI), creatine kinase isoenzyme MB (CK-MB), malondialdehyde (MDA), and tumor necrosis factor-α (TNF-α) were lower in the Dex group than the control group at T4, 8 h after the operation (T5), and 24 h after the operation (T6) (P <0.01). The Dex group required less time for mechanical ventilation than the control group (P = 0.003). CONCLUSION The study suggests that 0.50 µg/kg Dex pretreatment could reduce propofol use and the duration of mechanical ventilation, and confer myocardial protection without increased adverse events during cardiac valve replacement.
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Affiliation(s)
- Binglin Yuan
- Department of Anesthesiology, Zhongshan City People's Hospital, Zhongshan, Guangdong, China
| | - Xiqiang Huang
- Department of Anesthesiology, Zhongshan City People's Hospital, Zhongshan, Guangdong, China
| | - Junlin Wen
- Department of Anesthesiology, Zhongshan City People's Hospital, Zhongshan, Guangdong, China
| | - Mengzhe Peng
- Pharmacy Intravenous Admixture Services, Zhongshan City People's Hospital, Zhongshan, Guangdong, China
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Yan L, Wang X, Chen Z, Wu N, Li H, Yang B. Safety and efficacy of remimazolam tosilate combined with low-dose fentanyl for procedural sedation in obese patients undergoing gastroscopy: study protocol for a single-centre, double-blind, randomised controlled trial. BMJ Open 2023; 13:e079095. [PMID: 38154891 PMCID: PMC10759134 DOI: 10.1136/bmjopen-2023-079095] [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: 08/21/2023] [Accepted: 12/03/2023] [Indexed: 12/30/2023] Open
Abstract
INTRODUCTION Obese patients are susceptible to hypoxaemia during procedural sedation. Propofol combined with low-dose opioids is commonly used as a sedation strategy, but it can exacerbate hypoxaemia by causing cardiopulmonary depression and airway obstruction, especially in obese patients. Remimazolam, a novel ultra-short-acting benzodiazepine, has minimal accumulative effects and less cardiorespiratory depression. This study aims to evaluate the safety and efficacy of combining remimazolam tosilate with low-dose fentanyl as an alternative option for procedural sedation in obese patients undergoing gastroscopy. METHODS AND ANALYSIS This randomised controlled trial (RCT) will be conducted in the Endoscopy Centre of the First Affiliated Hospital of Xiamen University, recruiting 174 participants scheduled for painless gastroscopy with a body mass index of 30-39.9 kg×m-2. All patients will be randomly divided into two groups in a 1:1 ratio. The sedation strategy of the intervention group is remimazolam tosilate combined with fentanyl, while the control group is propofol combined with fentanyl. The primary outcome is the incidence of hypoxaemia and the secondary outcomes include the time to ambulation, need for airway manoeuvres and rescue sedation, sleep quality, the incidence of sedation failure, adverse events and the cost of sedatives. All statistical tests will be performed using IBM SPSS V.20.0 statistical software. A p value<0.05 is considered statistically significant. ETHICS AND DISSEMINATION This RCT was reviewed and approved by the Ethics Committee of the First Affiliated Hospital of Xiamen University (Scientific Research Ethics Review 2022, No.093). The results will be published in peer-reviewed journals. TRIAL REGISTRATION NUMBER ChiCTR2200067076.
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Affiliation(s)
- Lijuan Yan
- Department of Anesthesiology, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, China
| | - Xiao Wang
- Department of Ultrasound, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, China
| | - Zhenyi Chen
- Department of Anesthesiology, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, China
| | - Ningning Wu
- Department of Nursing, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, China
| | - Hao Li
- Department of Anesthesiology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Bin Yang
- Department of Anesthesiology, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, China
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Hughes M, Maves G, Tobias JD. Remimazolam for Sedation During Fiberoptic Intubation in an Adolescent. J Med Cases 2023; 14:289-292. [PMID: 37692369 PMCID: PMC10482594 DOI: 10.14740/jmc4137] [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: 07/12/2023] [Accepted: 08/11/2023] [Indexed: 09/12/2023] Open
Abstract
In specific clinical scenarios, fiberoptic intubation (FOI) may be the preferred technique for airway management and endotracheal intubation. In addition to topical anesthesia of the airway, sedation is frequently necessary, especially in younger patients, to facilitate the procedure. The goal is to facilitate the procedure by providing sedation, anxiolysis, and analgesia with maintenance of spontaneous ventilation. Remimazolam is a novel benzodiazepine with a short half-life and limited context sensitive half-life that can be titrated by continuous infusion. These novel properties may make it a suitable agent for sedation during FOI of the trachea. We report the novel use of a combination of remimazolam and remifentanil infusions to provide sedation during FOI in an adolescent. The basic pharmacology of remimazolam is presented and previous reports of its use for sedation during FOI are reviewed.
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Affiliation(s)
- Mitchell Hughes
- Heritage College of Osteopathic Medicine - Dublin Campus, Dublin, OH, USA
- Ohio University, Athens, OH, USA
| | - Gregory Maves
- Department of Anesthesiology & Pain Medicine, Nationwide Children’s Hospital, Columbus, OH, USA
- Department of Anesthesiology & Pain Medicine, The Ohio State University College of Medicine, Columbus, OH, USA
| | - Joseph D. Tobias
- Department of Anesthesiology & Pain Medicine, Nationwide Children’s Hospital, Columbus, OH, USA
- Department of Anesthesiology & Pain Medicine, The Ohio State University College of Medicine, Columbus, OH, USA
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Xu J, Xia SF, Fang JT. Effect of propofol combined with different anesthetic drugs on respiratory circulation function and erythrocyte immunity in patients undergoing intestinal endoscopic submucosal dissection. Shijie Huaren Xiaohua Zazhi 2023; 31:508-514. [DOI: 10.11569/wcjd.v31.i12.508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 04/30/2023] [Accepted: 06/16/2023] [Indexed: 06/28/2023] Open
Abstract
BACKGROUND Endoscopic submucosal dissection (ESD) is a difficult procedure with disadvantages of long operating time, intraoperative stimulation of sympathetic nerve excitation and postoperative pain, and suppression of immune function.
AIM To investigate the effect of propofol combined with different anesthesia drugs in patients undergoing intestinal ESD.
METHODS One hundred and fifty patients who planned to undergo intestinal ESD at our hospital from January 2019 to August 2022 were selected and randomly divided into three groups: A, B, and C, with 50 patients in each group. Group A was given propofol + sufentanil + nalbuphine, group B was given propofol + sufentanil, and group C was given propofol. Mean arterial pressure (MAP) and respiratory and circulatory function (pressure airway, Paw), partial pressure of end-expiratory carbon dioxide (PETCO2), bispectral index (BIS), red blood cell immunity [RBC immunocomplex rosette rate (RBC-ICR), erythrocyte cell membrane C3b receptor rosette rate (RBC-C3bR), and cooperative tumor erythrocyte rosette rate (ATER)], intraoperative and post-operative conditions, and adverse reactions were compared among the groups.
RESULTS Paw and PETCO2 in group A were significantly lower than those in group B and group C from T1 to T3 (P < 0.05). There was no statistically significant difference in BIS values among the three groups from T0 to T3 (P < 0.05). The amount of propofol used, the number of analgesic pump compressions within 48 h after surgery, and the consumption of analgesic pump drugs were significantly lower in group A than in group B and group C (P < 0.05). There was no significant difference in the incidence of adverse reactions among the three groups (P > 0.05).
CONCLUSION Propofol combined with sufentanil and nalbuphine can better alleviate respiratory and circulatory function inhibition, improve red cell immunity, and reduce the dosage of analgesic drugs in patients with intestinal ESD, with high safety.
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Affiliation(s)
- Jun Xu
- Department of Anesthesiology, The Second People's Hospital of Fuyang District, Hangzhou 311404, Zhejiang Province, China
| | - Shui-Feng Xia
- Department of Anesthesiology, The Second People's Hospital of Fuyang District, Hangzhou 311404, Zhejiang Province, China
| | - Jian-Ta Fang
- Department of Anesthesiology, The Second People's Hospital of Fuyang District, Hangzhou 311404, Zhejiang Province, China
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Cavaliere F, Allegri M, Apan A, Brazzi L, Carassiti M, Cohen E, DI Marco P, Langeron O, Rossi M, Spieth P, Turnbull D, Weber F. A year in review in Minerva Anestesiologica 2022: anesthesia, analgesia, and perioperative medicine. Minerva Anestesiol 2023; 89:239-252. [PMID: 36880326 DOI: 10.23736/s0375-9393.23.17281-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Affiliation(s)
- Franco Cavaliere
- IRCCS A. Gemelli University Polyclinic Foundation, Sacred Heart Catholic University, Rome, Italy -
| | - Massimo Allegri
- Unit of Pain Therapy of Column and Athlete, Policlinic of Monza, Monza, Italy
| | - Alparslan Apan
- Department of Anesthesiology and Intensive Care, Faculty of Medicine, University of Giresun, Giresun, Türkiye
| | - Luca Brazzi
- Department of Surgical Sciences, University of Turin, Turin, Italy
| | - Massimiliano Carassiti
- Unit of Anesthesia, Intensive Care and Pain Management, Campus Bio-Medico University, Rome, Italy
| | - Edmond Cohen
- Icahn School of Medicine at Mount Sinai, Department of Anesthesiology, New York, NY, USA
| | - Pierangelo DI Marco
- Department of Cardiovascular, Respiratory, Nephrological, Anesthesiologic, and Geriatric Sciences, Faculty of Medicine, Sapienza University, Rome, Italy
| | - Olivier Langeron
- Department of Anesthesia and Intensive Care, Assistance Publique - Hôpitaux de Paris (APHP), Henri Mondor University Hospital, University Paris-Est Créteil (UPEC), Paris, France
| | - Marco Rossi
- IRCCS A. Gemelli University Polyclinic Foundation, Sacred Heart Catholic University, Rome, Italy
| | - Peter Spieth
- Department of Anesthesiology and Critical Care Medicine, University Hospital of Dresden, Dresden, Germany
| | - David Turnbull
- Department of Anesthetics and Neuro Critical Care, Royal Hallamshire Hospital, Sheffield, UK
| | - Frank Weber
- Department of Anesthesiology, Erasmus University Medical Center, Sophia Children's Hospital, Rotterdam, the Netherlands
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Xin Y, Chu T, Wang J, Xu A. Sedative effect of remimazolam combined with alfentanil in colonoscopic polypectomy: a prospective, randomized, controlled clinical trial. BMC Anesthesiol 2022; 22:262. [PMID: 35974309 PMCID: PMC9380378 DOI: 10.1186/s12871-022-01805-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 08/11/2022] [Indexed: 11/10/2022] Open
Abstract
Background Remimazolam is a newer benzodiazepine with properties of rapid onset, short duration of action, and fast recovery. Our study was to evaluate the effects of different doses of remimazolam combined with alfentanil in colonoscopic polypectomy. Methods One hundred twenty patients were randomly divided into four groups: alfentanil and propofol (AP) group, alfentanil and remimazolam 0.1 mg/kg (AR1 group), 0.15 mg/kg (AR2 group), or 0.2 mg/kg (AR3 group). Patients in the four groups received alfentanil 10 μg/kg, followed by propofol 2 mg/kg and three dosages of remimazolam. Modified Observer's Assessment of Alertness and Sedation (MOAA/S) scale, heart rate (HR), oxygen saturation (SpO2), respiratory rate (RR), bispectral index (BIS) values and mean arterial pressure (MAP) were collected at intervals of 5 min and analyzed at different time points: before anesthesia (T0), 5 min (T1), 10 min (T2), 15 min after anesthesia (T3) and at the end of surgery (T4). The average MAP was calculated utilizing the average of all MAP values. The primary outcome was the success rate of sedation. Secondary outcomes included time to full alert and adverse events. Results The success rate of sedation was 100% among the four groups. The incidence of hypotension was significantly decreased (all P < 0.05) and the average MAP was higher in AR1-AR3 groups than AP group (all P < 0.001). None of the patients developed bradycardia or hypertension during surgery in all study groups. BIS values were higher (all P < 0.001) and the time to full alert was statistically shorter in AR1-AR3 groups (all P < 0.05) compared with the AP group. The MOAA/S score in AR1 was higher than AR2 (P < 0.05) and the AR3 group (P < 0.05) at T1 and BIS values in the AR1 group were significantly higher than AR3 group (P < 0.05) at T4. Conclusions Remimazolam combined with alfentanil have a non-inferior sedative effect than propofol during the colonoscopic polypectomy. Moreover, this combination of two short-acting drugs might be a safer alternative. Trial registration The clinical trial was registered on (16/05/2021, ChiCTR2100046492). Supplementary Information The online version contains supplementary material available at 10.1186/s12871-022-01805-3.
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Affiliation(s)
- Yueyang Xin
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, China
| | - Tiantian Chu
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, China
| | - Jinxu Wang
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, China
| | - Aijun Xu
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, China.
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