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Kudo T, Nishimoto S, Horiuchi I, Kurasawa S, Ukai S, Horiuchi A. Comparison of propofol-based sedation and midazolam sedation in pediatric bidirectional endoscopy conducted by pediatric gastroenterologists. DEN OPEN 2025; 5:e391. [PMID: 38881579 PMCID: PMC11178518 DOI: 10.1002/deo2.391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 05/06/2024] [Accepted: 05/12/2024] [Indexed: 06/18/2024]
Abstract
Objectives The effectiveness and safety of propofol-based sedation and midazolam sedation in pediatric bidirectional endoscopy were compared. Methods We retrospectively analyzed the cases of pediatric patients (≤15 years old) who had undergone bidirectional endoscopy, esophagogastroduodenoscopy, and colonoscopy by pediatric gastroenterologists. Demographic data, indications, sedatives/dosages, clinical outcomes, endoscopic findings, adverse events, and total patient time requirements (total time in which patients stay in our hospital) were compared in the two sedation groups. Results Ninety-one children (51 boys, 40 girls, mean age 13 years, range 9-15) treated at our hospital were enrolled. Propofol alone or in combination with midazolam and/or pentazocine was administered to 51 patients (propofol-based sedation group). Midazolam alone or in combination with pentazocine was administered to the other 40 patients (midazolam sedation group). In the propofol group, the following mean doses were used: propofol, 96 mg (range 40-145 mg); midazolam, 4.9 mg (range 3-5 mg); and pentazocine, 7.5 mg. In the midazolam group, the mean doses of midazolam and pentazocine were 6.2 mg (range 4-10 mg) and 15 mg, respectively. All procedures were successfully completed by pediatric gastroenterologists. The total procedure times and endoscopic findings were similar in the two groups, but the median patient time requirement in the propofol group was significantly shorter versus the midazolam group (7.3 h vs. 8.4 h, p < 0.001). No adverse events occurred in either group. Conclusions Propofol-based sedation in pediatric bidirectional endoscopy was safely and effectively performed by pediatric gastroenterologists, and its patient time requirement was shorter than that for midazolam sedation.
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Affiliation(s)
- Takahiro Kudo
- Digestive Disease Center Showa Inan General Hospital Nagano Japan
- Department of Pediatrics Juntendo University Faculty of Medicine Tokyo Japan
| | - Satomi Nishimoto
- Digestive Disease Center Showa Inan General Hospital Nagano Japan
- Department of Pediatrics Osaka Medical and Pharmaceutical University Osaka Japan
| | - Ichitaro Horiuchi
- Digestive Disease Center Showa Inan General Hospital Nagano Japan
- Department of Gastroenterology Shinshu University Hospital Nagano Japan
| | - Shingo Kurasawa
- Digestive Disease Center Showa Inan General Hospital Nagano Japan
| | - Satoshi Ukai
- Digestive Disease Center Showa Inan General Hospital Nagano Japan
| | - Akira Horiuchi
- Digestive Disease Center Showa Inan General Hospital Nagano Japan
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Zhao Z, Jin X, Li Y, Wang X, Cui Y, Zhang B, Kang Y, Zhang G, Chu Q, Zhang J. Efficacy and safety of fospropofol disodium sedation for same-day bidirectional endoscopy in elderly patients: protocol for a prospective, single-center, randomized, double-blind, non-inferiority trial. Front Pharmacol 2024; 15:1378081. [PMID: 39175547 PMCID: PMC11338772 DOI: 10.3389/fphar.2024.1378081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Accepted: 07/26/2024] [Indexed: 08/24/2024] Open
Abstract
Introduction Fospropofol disodium is a novel prodrug that has improved pharmacokinetic and pharmacodynamic properties when compared with propofol. This trial aims to compare the efficacy and safety of fospropofol versus propofol sedation for same-day bidirectional endoscopy in elderly patients. Methods and analysis This is a prospective, single-center, double-blind, randomized, propofol-controlled, non-inferiority trial. A total of 256 patients aged 65 years or older, who are scheduled for same-day bidirectional endoscopy under sedation, will be randomly allocated, in a 1:1 ratio, to either fospropofol group or propofol group (n = 128 in each group). All patients will receive analgesic pre-treatment with sufentanil 5 μg. Two minutes later, an initial bolus dose of fospropofol 6.5 mg/kg or 1.5 mg/kg propofol and supplemental doses of fospropofol 1.6 mg/kg or 0.5 mg/kg propofol will be titrated as needed to achieve target sedation levels during the procedures. The primary outcome is the success rate of same-day bidirectional endoscopy. Secondary outcomes include the time to successful induction of sedation, duration, time to being fully alert, time to patient discharge, endoscopist satisfaction, patient satisfaction, and the top-up frequency and dosage of sedative medications. The safety endpoints consist of adverse events concerning cough reflex, gag reflexes, body movement, muscular tremor, and pain on injection. Sedation-related AEs, including episodes of desaturation, severe desaturation (SpO2 < 90%), hypotension, severe hypotension (decrease in MBP ≥30% of baseline), and bradycardia, will also be recorded. Data will be analyzed on an intention-to-treat basis. Discussion We hypothesize that the efficacy and safety of fospropofol sedation for elderly patients undergoing same-visit bidirectional endoscopy will not be inferior to that of propofol. Our findings will potentially provide a new sedation regimen for same-visit bidirectional endoscopy in elderly patients. Clinical Trial Registration clinicaltrials.gov, identifier NCT02875639.
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Affiliation(s)
- Zhe Zhao
- Department of Geriatrics, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Xiaogao Jin
- Department of Anesthesiology, The Second Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Yong Li
- Department of Anesthesiology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaofeng Wang
- Department of Anesthesiology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Yongchen Cui
- Department of Anesthesiology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Bing Zhang
- Department of Anesthesiology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yu Kang
- Department of Anesthesiology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Guangming Zhang
- Department of Anesthesiology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qinjun Chu
- Department of Anesthesiology and Perioperative Medicine, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, Henan, China
| | - Junfeng Zhang
- Department of Anesthesiology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
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Sui Y, Chen X, Ma T, Lu J, Xiao T, Wang Z, Wen Q, Wang G, Jia H, Cao F, Wu X, Zhang Y, Hao J, Wang N. Comparison of three sedation models for same-day painless bidirectional endoscopy: A multicenter randomized controlled trial. J Gastroenterol Hepatol 2022; 37:1603-1609. [PMID: 35618650 PMCID: PMC9543240 DOI: 10.1111/jgh.15901] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 05/12/2022] [Accepted: 05/24/2022] [Indexed: 12/09/2022]
Abstract
BACKGROUND AND AIM We investigated the most beneficial propofol sedation model for same-day painless bidirectional endoscopy (BDE). METHODS Asymptomatic participants scheduled for same-day painless BDE examination from October 2020 to September 2021 were randomized to three groups: sedated esophagogastroduodenoscopy followed by unsedated colonoscopy (Group A); sedated esophagogastroduodenoscopy followed by sedated colonoscopy (Group B); and sedated esophagogastroduodenoscopy followed by sedated insertion colonoscopy (Group C). Patient discomfort, colonoscopy performance, doses of propofol, cardiovascular stress, anesthesia resuscitation, and sedation-related adverse events were evaluated. RESULTS A total of 3200 participants were analyzed. Baseline demographics, patient discomfort, cecal intubation rate, adenoma detection rate and sedation-related adverse events were similar in the three groups. Propofol dose was the lowest in Group A (137.65 ± 36.865 mg) compared with Group B (177.71 ± 40.112 mg, P < 0.05) and Group C (161.63 ± 31.789 mg, P < 0.05). Decline in vital signs was most obvious in Group B during the procedure (P < 0.05). Recovery time was the shortest in Group A (5.01 ± 1.404 min) compared with Group B (9.51 ± 2.870 min, P < 0.05) and Group C (5.83 ± 2.594 min, P < 0.05); discharge time was the shortest in Group A (3.53 ± 1.685 min) compared with Group B (11.29 ± 5.172 min, P < 0.05) and Group C (6.47 ± 2.338 min, P < 0.05). Adenomas per positive patient of Group A (2.29 ± 1.055) and Group C (2.28 ± 0.931) were more than that in Group B (2.11 ± 0.946, P < 0.05). CONCLUSIONS Sedated esophagogastroduodenoscopy followed by unsedated colonoscopy is the superior model for same-day painless BDE with the benefits of satisfactory patient comfort, reduced sedation dose, less cardiovascular stress, faster recovery, shorter discharge time and high colonoscopy quality.
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Affiliation(s)
- Yue Sui
- Shanxi Medical UniversityTaiyuanChina
| | - Xing Chen
- Shanxi Medical UniversityTaiyuanChina,The First Hospital of Shanxi Medical UniversityTaiyuanChina
| | - Ting Ma
- Shanxi Medical UniversityTaiyuanChina
| | - Junhui Lu
- Shanxi Medical UniversityTaiyuanChina
| | - Tao Xiao
- Shanxi Cancer HospitalTaiyuanChina
| | | | - Qing Wen
- The Second People's Hospital of DatongDatongChina
| | | | - Hui Jia
- Erdos Kangning Physical Examination CenterErdosChina
| | - Fengzhen Cao
- Erdos Kangning Physical Examination CenterErdosChina
| | - Xiaopeng Wu
- Lvliang Traditional Chinese Medicine HospitalLvliangChina
| | - Yiping Zhang
- Datong Shoujia Digestive Disease HospitalDatongChina
| | - Junlian Hao
- Xiaoyi Traditional Chinese Medicine HospitalXiaoyiChina
| | - Naping Wang
- The First Hospital of Shanxi Medical UniversityYunchengChina
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Song N, Shan XS, Yang Y, Zheng Z, Shi WC, Yang XY, Li Y, Tan AP, Liu H, Peng K, Ji FH. Low-Dose Esketamine as an Adjuvant to Propofol Sedation for Same-Visit Bidirectional Endoscopy: Protocol for a Multicenter Randomized Controlled Trial. Int J Gen Med 2022; 15:4733-4740. [PMID: 35571286 PMCID: PMC9091685 DOI: 10.2147/ijgm.s365068] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 04/29/2022] [Indexed: 11/23/2022] Open
Abstract
Background Same-visit bidirectional endoscopy (esophagogastroduodenoscopy and colonoscopy) is widely performed under sedation. At present, the optimal sedation regimen remains unclear. This study aims to test the hypothesis that a low-dose esketamine added to propofol sedation reduces hemodynamic and respiratory adverse events in these procedures. Methods In this multicenter, randomized, double-blind, placebo-controlled trial, 660 adult patients scheduled for same-visit bidirectional endoscopy under sedation from 3 teaching hospitals in China will be recruited. Patients will be randomly allocated, in a 1:1 ratio, to an esketamine group or a normal saline group (n = 330 in each group), stratified by study center. All patients will receive intravenous propofol 0.5 mg/kg and sufentanil 0.1 μg/mL for induction of sedation, followed by intravenous esketamine 0.15 mg/kg or the same volume of normal saline. Propofol will be titrated to the target sedation levels during the procedures. The primary endpoint is a composite of desaturation (peripheral oxygen saturation < 90%) and hypotension (systolic blood pressure <80 mmHg or decrease >30% of baseline). Secondary endpoints include desaturation, hypotension, total dose of propofol, pain scores and fatigue scores on the 0-10 numerical rating scale, dizziness or headache, hallucination or nightmare, nausea or vomiting, endoscopist satisfaction, and patient satisfaction. All analyses will be intention-to-treat. Discussion We expect that a low-dose esketamine adjunct to propofol-based sedation will improve cardiorespiratory stability in patients undergoing same-visit bidirectional endoscopy, providing reference for clinical sedation practice during these procedures. Trial Registration Chinese Clinical Trial Registry (Identifier: ChiCTR-ChiCTR2200055938).
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Affiliation(s)
- Nan Song
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, People’s Republic of China
- Institute of Anesthesiology, Soochow University, Suzhou, Jiangsu, People’s Republic of China
| | - Xi-Sheng Shan
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, People’s Republic of China
- Institute of Anesthesiology, Soochow University, Suzhou, Jiangsu, People’s Republic of China
| | - Yi Yang
- Department of Anesthesiology, the People’s Hospital of SND, Suzhou, Jiangsu, People’s Republic of China
| | - Zhong Zheng
- Department of Anesthesiology, Taicang First People’s Hospital, Taicang, Jiangsu, People’s Republic of China
| | - Wen-Cheng Shi
- Department of Anesthesiology, Taicang First People’s Hospital, Taicang, Jiangsu, People’s Republic of China
| | - Xiao-Yan Yang
- Department of Anesthesiology, the People’s Hospital of SND, Suzhou, Jiangsu, People’s Republic of China
| | - Yang Li
- Department of Anesthesiology, the People’s Hospital of SND, Suzhou, Jiangsu, People’s Republic of China
| | - Ai-Ping Tan
- Department of Anesthesiology, the People’s Hospital of SND, Suzhou, Jiangsu, People’s Republic of China
| | - Hong Liu
- Department of Anesthesiology and Pain Medicine, University of California Davis Health System, Sacramento, CA, USA
| | - Ke Peng
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, People’s Republic of China
- Institute of Anesthesiology, Soochow University, Suzhou, Jiangsu, People’s Republic of China
| | - Fu-Hai Ji
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, People’s Republic of China
- Institute of Anesthesiology, Soochow University, Suzhou, Jiangsu, People’s Republic of China
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Long YQ, Feng CD, Ding YY, Feng XM, Liu H, Ji FH, Peng K. Esketamine as an Adjuvant to Ciprofol or Propofol Sedation for Same-Day Bidirectional Endoscopy: Protocol for a Randomized, Double-Blind, Controlled Trial With Factorial Design. Front Pharmacol 2022; 13:821691. [PMID: 35370640 PMCID: PMC8975265 DOI: 10.3389/fphar.2022.821691] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 02/21/2022] [Indexed: 11/16/2022] Open
Abstract
Background: Same-day esophagogastroduodenoscopy and colonoscopy procedures under sedation have been increasingly performed. This study aims to assess the effects of esketamine combined with ciprofol (a novel anesthetic/sedative agent) or propofol on respiratory and hemodynamic adverse events in patients undergoing same-day bidirectional endoscopy. Methods: This is a prospective, randomized, double-blind, placebo-controlled, 2 × 2 factorial trial. A total of 180 adult patients scheduled for same-day bidirectional endoscopy under sedation will be randomized, in a 1:1:1:1 ratio, to receive 1 of 4 sedation regimens: 1) ciprofol and esketamine, 2) propofol and esketamine, 3) ciprofol and normal saline placebo, or 4) propofol and normal saline placebo. The primary outcome is a composite of desaturation [peripheral oxygen saturation (SpO2) < 95%] and hypotension [mean blood pressure (MBP) < 65 mmHg or decrease in MBP ≥20% of baseline] during the sedation and in the recovery room. Secondary outcomes include episodes of desaturation, severe desaturation (SpO2 < 90%), hypotension, severe hypotension (decrease in MBP ≥30% of baseline), bradycardia, postoperative nausea and vomiting, dizziness or headache, hallucination or nightmare, injection pain, pain scores and fatigue scores, endoscopist satisfaction, and patient satisfaction. Data will be analyzed on the modified intention-to-treat basis. Discussion: We hypothesize that esketamine as an adjuvant to ciprofol or propofol sedation would improve cardiorespiratory stability. In addition, the potential interactions between interventions will be explored using the factorial design. The results of this trial will provide evidence for daily practice of sedation regimens for same-day bidirectional endoscopy. Clinical Trial Registration: Chinese Clinical Trials Registry, Identifier ChiCTR2100052523.
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Affiliation(s)
- Yu-qin Long
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Anesthesiology, Soochow University, Suzhou, China
| | - Chang-dong Feng
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Anesthesiology, Soochow University, Suzhou, China
| | - Yun-ying Ding
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Anesthesiology, Soochow University, Suzhou, China
| | - Xiao-mei Feng
- Department of Anesthesiology, University of Utah, Salt Lake City, UT, United States
| | - Hong Liu
- Department of Anesthesiology and Pain Medicine, University of California Davis Health System, Sacramento, CA, United States
| | - Fu-hai Ji
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Anesthesiology, Soochow University, Suzhou, China
- *Correspondence: Ke Peng, ; Fu-hai Ji,
| | - Ke Peng
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Anesthesiology, Soochow University, Suzhou, China
- *Correspondence: Ke Peng, ; Fu-hai Ji,
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Comparison of Procedural Sequences in Sedated Same-Day Bidirectional Endoscopy with Water-Exchange Colonoscopy: A Randomized Controlled Trial. J Clin Med 2022; 11:jcm11051365. [PMID: 35268456 PMCID: PMC8911281 DOI: 10.3390/jcm11051365] [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: 01/17/2022] [Revised: 02/21/2022] [Accepted: 02/28/2022] [Indexed: 11/25/2022] Open
Abstract
Background: Previous studies have favored esophagogastroduodenoscopy (EGD) followed by colonoscopy as the optimal sequence in bidirectional endoscopy (BDE) with air insufflation. However, the optimal sequence in same-day BDE with WE colonoscopy is unclear. Methods: A total of 200 patients undergoing BDE with propofol sedation from May 2018 to January 2021 were randomized to either the EGD-first group (n = 100) or the colonoscopy-first group (n = 100). Results: The EGD-first group required a longer cecal-intubation time (median 16.0 min vs. 13.7 min, p < 0.001) and a lower Boston Bowel Preparation Scale score (8.5 vs. 9, p = 0.030) compared with the colonoscopy-first group. However, the EGD-first group needed a significantly lower dose of propofol (200 mg vs. 250 mg, p < 0.001) and a shorter recovery time (7 min vs. 13.5 min, p < 0.001), resulting in a shorter turnover time of the endoscopy room (39.5 min vs. 42.6 min, p = 0.004). There were no differences in the sedation-related adverse events, patients’ satisfaction scores, adenoma-detection rates, or the outcomes of EGD between the two groups. Conclusions: During propofol-sedated BDE, EGD followed by WE colonoscopy was more efficient with a shorter turnover time despite a longer cecal-intubation time (NCT03638713).
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Liu X, Ding B, Shi F, Zhang Y, Liu L, Sha Y, Zhao T. The Efficacy and Safety of Remimazolam Tosilate versus Etomidate-Propofol in Elderly Outpatients Undergoing Colonoscopy: A Prospective, Randomized, Single-Blind, Non-Inferiority Trial. Drug Des Devel Ther 2021; 15:4675-4685. [PMID: 34819721 PMCID: PMC8606755 DOI: 10.2147/dddt.s339535] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 11/07/2021] [Indexed: 02/02/2023] Open
Abstract
Objective The optimal sedation regime during endoscopy remains controversial, especially for elderly outpatients. In this study, we compared the efficacy and safety between remimazolam tosilate (RT) and etomidate-propofol (EP) in elderly outpatients undergoing colonoscopy. Methods A total of 260 elderly outpatients undergoing sedative colonoscopy were randomized into two groups. Patients in the RT group received a 0.075-mg/kg maintenance dose of remimazolam following an initial dose of 0.15 mg/kg, whereas patients in the EP group (10 mL:20 mg etomidate plus 10 mL:100 mg propofol) received a 0.05-mL/kg maintenance dose following an initial dose of 0.1 mL/kg to maintain a Modified Observer’s Assessment of Alertness/Sedation score of ≤3 during the procedure. The primary endpoint was the success of the procedure. Secondary endpoints included time metrics, hemodynamics, consumption of fentanyl, etomidate, propofol, and remimazolam, intraoperative body movement, patient and endoscopist satisfaction scores, supplemental dose of sedative and fentanyl, and incidence and severity of adverse events. Results The procedure success rate was 96.52% in the RT group and 100% in the EP group. The difference in procedure success rate between the RT and EP groups was −3.48% (95% confidence interval: −6.81%, −0.15%). Four patients in the RT group required rescue midazolam. Compared with patients in the RT group, the onset time of the EP group was significantly lower (p < 0.05), whereas time to fully alert (p = 0.001), ready for discharge (p = 0.001), and hospital discharge (p = 0.002) were all significantly higher in the EP group. However, there were no significant differences in procedure time (p = 0.846) or cecal intubation time (p = 0.320) between the two groups. Although the frequency of intraoperative body movement was higher in the RT group, the difference was not significant (p = 0.508). There were no significant differences in patients’ demographic and baseline characteristics, supplemental doses of sedative and fentanyl, or patient and endoscopist satisfaction scores (p > 0.05). Muscular tremor and pain on injection were recorded more frequently in the EP group (p < 0.05). However, there were no significant differences in hypoxia, respiratory depression, or incidence of postoperative nausea and vomiting. The severity of adverse events was all mild (grade 1) across both groups. Conclusion RT may have non-inferior efficacy and a higher safety profile than EP in elderly outpatients undergoing colonoscopy, which suggests that RT may be more suitable for elderly outpatients undergoing colonoscopy.
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Affiliation(s)
- Xianwen Liu
- Department of Anaesthesiology, Liaocheng People's Hospital, Liaocheng, Shandong, People's Republic of China
| | - Baofeng Ding
- Department of Anaesthesiology, Liaocheng Second People's Hospital, Liaocheng, Shandong, People's Republic of China
| | - Fu Shi
- Department of Anaesthesiology, Liaocheng People's Hospital, Liaocheng, Shandong, People's Republic of China
| | - Yang Zhang
- Department of Anaesthesiology, Liaocheng People's Hospital, Liaocheng, Shandong, People's Republic of China
| | - Lei Liu
- Department of Anaesthesiology, Liaocheng People's Hospital, Liaocheng, Shandong, People's Republic of China
| | - Yongwei Sha
- Department of Anaesthesiology, Guanxian Central Hospital, Liaocheng, Shandong, People's Republic of China
| | - Tonghang Zhao
- Department of Anaesthesiology, Liaocheng People's Hospital, Liaocheng, Shandong, People's Republic of China
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