A Randomized Trial Evaluating Actual Versus Ideal Body Weight Dosing of Sugammadex in Morbidly Obese Patients
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Abstract Background: This randomized, double-blind trial evaluated sugammadex-mediated recovery time from rocuronium- or vecuronium-induced moderate (M-) or deep neuromuscular block (D-NMB) in morbidly obese adults dosed by actual (ABW) or ideal body weight (IBW). Methods: Adults with BMI ≥40 kg/m 2 were randomized to 1 of 5 groups: M-NMB, sugammadex 2 mg/kg ABW; M-NMB, sugammadex 2 mg/kg IBW; M-NMB, neostigmine 5 mg, and glycopyrrolate 1 mg; D-NMB, sugammadex 4 mg/kg ABW; or D-NMB, sugammadex 4 mg/kg IBW. Supramaximal train of four (TOF) stimulation of the ulnar nerve (TOF-watch SX ® ) monitored recovery. Primary endpoint was time to TOF ratio ≥0.9 for ABW and IBW groups pooled across NMB agent (NMBA)/blocking depth, analyzed by log-rank test stratified for agent and depth. Prespecified safety outcomes included treatment-emergent bradycardia, tachycardia, and other arrhythmias, and adjudicated hypersensitivity and anaphylaxis. Results: Of 207 patients randomized, 188 received treatment (28% male, BMI 47±5.1 kg/m 2 , age 48±13 years). Recovery was 1.5 min faster with ABW vs IBW dosing. The sugammadex 2 mg/kg groups recovered 9-fold faster [time 0.11-fold, 95% CI 0.08 to 0.14] than the neostigmine group. ABW (5.3%) and IBW (2.7%) groups had similar incidences of recovery time >10 min (95% CI of difference: -4.8% to 11.0%); 84% for neostigmine group. Re-curarization occurred in one patient each in the 2 mg/kg IBW and neostigmine groups. Prespecified safety outcomes occurred with similar incidences. Conclusions: ABW-based sugammadex dosing yields faster reversal without re-curarization, supporting ABW-based sugammadex dosing in the morbidly obese, irrespective of the depth of NMB or NMBA used. Trial registration: Registered on November 17, 2017, at ClinicalTrials.gov under number NCT03346070. https://clinicaltrials.gov/ct2/show/results/NCT03346070?term=NCT03346070&draw=2&rank=1Keywords:
Sugammadex
Sugammadex more rapidly and reliably reverses rocuronium-induced neuromuscular block compared with neostigmine, but it is not known if subsequent patient outcomes, including nausea, vomiting and other aspects of recovery are modified. In this study, we compared the recovery characteristics of sugammadex and neostigmine/glycopyrrolate following reversal of neuromuscular block. This was a single-centre, randomised, blinded, parallel-group clinical trial in women undergoing elective day-surgical laparoscopic gynaecological surgery, with a standardised general anaesthesia regimen that included rocuronium. Neuromuscular block was reversed with either sugammadex 2 mg.kg-1 or neostigmine 40 μg.kg-1 and glycopyrrolate 400 μg. The primary outcome was the incidence of nausea and vomiting during the first six postoperative hours. Secondary outcomes included other measures of postoperative recovery such as patient symptoms and recovery scores. Three-hundred and four women were analysed by intention-to-treat (sugammadex n = 151, neostigmine n = 153), which included four major protocol violations. There was no significant difference between sugammadex and neostigmine groups in the incidence of early nausea and vomiting (49.0% vs. 51.0%, respectively; OR 0.92, 95%CI 0.59-1.45; p = 0.731). Double vision (11.5% vs. 20.0%; p = 0.044) and dry mouth (71.6% vs. 85.5%; p = 0.003) were less common after sugammadex. Sedation scores at 2 h were also lower after sugammadex (median (IQR [range]) 0 (0-3 [0-10]) vs. 2 (0-4.[0-10]); p = 0.021). Twenty-four-hour recovery scores were not significantly different between groups. Reversal with sugammadex in this patient population did not reduce postoperative nausea or vomiting compared with neostigmine/glycopyrrolate.
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To evaluate the influence of reversal of neuromuscular blockade with sugammadex or neostigmine on postoperative quality of recovery following a single bolus dose of rocuronium after pars plana vitrectomy (PPV) under general anesthesia.Prospective, double-blind, randomized controlled trial.This study was conducted in a University Teaching Hospital from February to July 2017.A total of 84 patients with an American Society of Anesthesiologists physical status of I or II who were scheduled to undergo PPV under general anesthesia.The patients were randomly assigned to the neostigmine (Group N, n = 44) or sugammadex (Group S, n = 40) groups; 3 ml of study drug was prepared for the patients. For patients in Group N, a solution of neostigmine methylsulfate (1 mg) and glycopyrrolate (0.2 mg) was prepared, while a solution of sugammadex sodium (2 mg/kg) and normal saline was prepared for patients in Group S.The primary endpoint was the effect of sugammadex, compared with neostigmine, on the recovery rate in the physiological domain in patients who underwent PPV with general anesthesia. The quality of recovery was assessed using the Postoperative Quality Recovery Scale at 15 min and 40 min after surgery, and on postoperative day 1.The recovery rate in the physiological domain was higher in Group S at 15 min after surgery (P = 0.020). Though there were no significant differences in the overall cognitive recovery domain, patients in Group S could recall more numbers in reverse order. However, there were no significant differences between the groups in the other domains of the scale.The use of sugammadex may increase the quality of physiological recovery at early postoperative periods, compared with that of neostigmine, following a single bolus dose of rocuronium in patients undergoing PPV with general anesthesia.Registered at ClinicalTrials.gov (https://clinicaltrials.gov/ct2/show/NCT03108989). Registration number: NCT03108989.
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BackgroundBronchial asthma in children is considered a challenge for the anesthesiologist because of the perioperative adverse effects, especially the risk for bronchospasm either during induction or more commonly during recovery and extubation. Therefore, the goal should be to minimize this risk by avoiding any triggering stimulus and deep extubation with adequate recovery from the neuromuscular blocker to have full control of pharyngeal and respiratory muscles. The aim of this study was to compare the efficacy of sugammadex with neostigmine on reversing rocuronium-induced neuromuscular blockade (NMB) in asthmatic pediatric patients undergoing outpatient surgical procedures.Patients and methodsThis prospective randomized study was conducted on 60 patients, aged 3–12 years, with history of bronchial asthma, and scheduled for outpatient lower abdominal or urogenital surgeries. NMB was achieved by administration of rocuronium 0.6 mg/kg and monitorized subjectively with train-of-four mode of peripheral nerve stimulator. Patients were randomly allocated into two groups by using the sealed-envelope method: group N (n=30), which received 0.04 mg/kg neostigmine, and group S (n=30), which received 2 mg/kg sugammadex for reversal of rocuronium-induced NMB. Duration of surgery, time from injection of the reversal agent to the time of extubation (time to extubation), total doses of rocuronium, and time from extubation to recovery were recorded. Any complications such as hemodynamic abnormalities, retching, vomiting, bucking, bronchospasm, laryngospasm, coughing, need for reintubation, or any other complications were recorded.ResultsThere was no significant difference between the two groups as regards age, sex, weight, duration of surgery, and total doses of rocuronium. On the other hand, there was statistically significant difference between the two groups regarding time of NMB reversal to time of extubation: 13.43±4.92 min in the neostigmine group versus 1.84±0.66 min in the sugammadex group (P<0.0001). Moreover, there was statistically significant difference between the two groups regarding time from extubation till time of recovery: 21±5.72 min in group N versus 25.57±5.72 min in group S (P=0.019). Regarding complications, need for succinylcholine, and need for reintubation, although their incidence was higher in the neostigmine group, there was no statistically significant difference between the two groups.ConclusionIt was concluded that reversal of rocuronium-induced NMB by using sugammadex was more rapid and safer when compared with neostigmine in asthmatic pediatric patients undergoing outpatient lower abdominal or urogenital surgeries.
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Rocuronium for cesarean delivery under general anesthesia is an alternative to succinylcholine for rapid-sequence induction of anesthesia because of the availability of sugammadex for reversal of neuromuscular blockade. However, there are no large well-controlled studies in women undergoing general anesthesia for cesarean delivery. The aim of this noninferiority trial was to determine whether rocuronium and sugammadex confer benefit in time to tracheal intubation (primary outcome) and other neuromuscular blockade outcomes compared with succinylcholine, rocuronium, and neostigmine in women undergoing general anesthesia for cesarean delivery.We aimed to enroll all women undergoing general anesthesia for cesarean delivery in the 2 participating university hospitals (Brno, Olomouc, Czech Republic) in this single-blinded, randomized, controlled study. Women were randomly assigned to the ROC group (muscle relaxation induced with rocuronium 1 mg/kg and reversed with sugammadex 2-4 mg/kg) or the SUX group (succinylcholine 1 mg/kg for induction, rocuronium 0.3 mg/kg for maintenance, and neostigmine 0.03 mg/kg for reversal of the neuromuscular blockade). The interval from the end of propofol administration to tracheal intubation was the primary end point with a noninferiority margin of 20 seconds. We recorded intubating conditions (modified Viby-Mogensen score), neonatal outcome (Apgar score <7; umbilical artery pH), anesthesia complications, and subjective patient complaints 24 hours after surgery.We enrolled 240 parturients. The mean time to tracheal intubation was 2.9 seconds longer in the ROC group (95% confidence interval, -5.3 to 11.2 seconds), noninferior compared with the SUX group. Absence of laryngoscopy resistance was greater in the ROC than in the SUX groups (ROC, 87.5%; SUX, 74.2%; P = 0.019), but there were no differences in vocal cord position (P = 0.45) or intubation response (P = 0.31) between groups. No statistically significant differences in incidence of anesthesia complications or in neonatal outcome were found (10-minute Apgar score <7, P = 0.07; umbilical artery pH, P = 0.43). The incidence of postpartum myalgia was greater in the SUX group (ROC 0%; SUX 6.7%; P = 0.007). The incidence of subjective complaints was lower in the ROC group (ROC, 21.4%; SUX, 37.5%; P = 0.007).We conclude that rocuronium for rapid-sequence induction is noninferior for time to tracheal intubation and is accompanied by more frequent absence of laryngoscopy resistance and lower incidence of myalgia in comparison with succinylcholine for cesarean delivery under general anesthesia.
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Complete and reliable neuromuscular reversal is important to successful anaesthetic recovery in the morbidly obese patient undergoing laparoscopic surgery. Our goal was to determine whether sugammadex, a selective reversal agent is associated with better respiratory recovery than neostigmine following the reversal of anaesthesia-associated neuromuscular blockade by rocuronium in the morbidly obese. Peak Expiratory Flow Rate a surrogate marker for respiratory function, was the primary outcome measured and secondary outcome measures included post-operative nausea and vomiting, pain and head lifting. We found that patients reversed with sugammadex had a significantly higher post-operative PEFR as compared to those reversed with neostigmine and glycopyrrolate group.
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Background Sugammadex is designed to be a reversal agent for steroidal muscle relaxants. The current trial was aimed to compare between sugammadex and neostigmine concerning the recovery time from neuromuscular blockade. We hypothesised that sugammadex might have shorter recovery time than neostigmine. Methods Sixty paediatric patients aged 2–10 years scheduled for lower abdominal surgeries were randomly assigned into two equal groups to receive 4 mg/kg sugammadex (Group S) or 0.35 mg/kg neostigmine and 0.02 mg/kg atropine (Group N) as a reversal agent for rocuronium at the end of surgery. Primary outcome was the recovery time [time from starting of sugammadex or neostigmine till reaching train of four ( TOF ) ratio> 0.9] whereas secondary outcomes included number of patients who needed another dose of sugammadex or neostigmine to reach TOF ratio> 0.9, extubation time (time from stoppage of anaesthetic inhalation until the patient fulfilled criteria for safe extubation, post‐anaesthesia care unit ( PACU ) discharge time and post‐operative adverse effects. Results The mean recovery and extubation times were significantly shorter ( P = 0.002 and 0.005) in Group S compared with Group N (2.5 and 2.0 min vs. 12.6 min and 4.3 min respectively). In the Group N, eight patients needed another reversal dose compared with one patient in Group S ( P = 0.035). PACU discharge time showed no significant difference between both groups. Incidence of nausea, vomiting, tachycardia, and dry mouth were significantly higher in Group N. Conclusion Sugammadex administration in children resulted in faster recovery and extubation times and lower incidence of adverse events compared with neostigmine.
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Acetylcholinesterase inhibitors cannot rapidly reverse profound neuromuscular block. Sugammadex, a selective relaxant binding agent, reverses the effects of rocuronium and vecuronium by encapsulation. This study assessed the efficacy of sugammadex compared with neostigmine in reversal of profound vecuronium-induced neuromuscular block under sevoflurane anesthesia. Patients aged ≥18 years, American Society of Anesthesiologists class 1-4, scheduled to undergo surgery under general anesthesia were enrolled in this phase III, multicenter, randomized, safety-assessor blinded study. Sevoflurane anesthetized patients received vecuronium 0.1 mg/kg for intubation, with maintenance doses of 0.015 mg/kg as required. Patients were randomized to receive sugammadex 4 mg/kg or neostigmine 70 μg/kg with glycopyrrolate 14 μg/kg at 1-2 post-tetanic counts. The primary efficacy variable was time from start of study drug administration to recovery of the train-of-four ratio to 0.9. Safety assessments included physical examination, laboratory data, vital signs, and adverse events. Eighty three patients were included in the intent-to-treat population (sugammadex, n = 47; neostigmine, n = 36). Geometric mean time to recovery of the train-of-four ratio to 0.9 was 15-fold faster with sugammadex (4.5 minutes) compared with neostigmine (66.2 minutes; p < 0.0001) (median, 3.3 minutes with sugammadex versus 49.9 minutes with neostigmine). No serious drug-related adverse events occurred in either group. Recovery from profound vecuronium-induced block is significantly faster with sugammadex, compared with neostigmine. Neostigmine did not rapidly reverse profound neuromuscular block (Trial registration number: NCT00473694).
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