View clinical trials related to Neuromuscular Blockade.
Filter by:A quantitative neuromuscular monitoring device is desirable to titrate the depth of neuromuscular block (NMB) during a procedure, and to prevent residual effects after removal of the endotracheal tube. Unfortunately, the most widely used monitoring technique acceleromyography (AMG) typically implies a series of cumbersome installation and calibration procedures that frequently precludes correct use of these devices in clinical practice. Electromyography (EMG) has recently attracted a lot of attention as an alternative strategy to compensate for the deficiency of AMG-based neuromuscular monitors. Nowadays, a new technology that allows for the simultaneous acquisition of EMG and AMG signals is commercially available. Although its reliability has been rapidly accepted in Physical Medicine and Rehabilitation, the use of the technique in neuromuscular monitoring has never been reported. The aim of the present study is to assess the validity of the new device for estimating the neuromuscular block by comparing with TOF Watch®-SX, which is the most widely accepted AMG-based neuromuscular monitor that has been practiced in the clinical arena for decades.
Monocenter randomized controlled trial to compare the effect of deep neuromuscular blockade (NMB) versus moderate NMB during total hip replacement surgery on postoperative quality of recovery and innate immune function.
Magnesium therapy used for seizure prophylaxis in patients with preeclampsia. Magnesium has been shown to prolong the effect of nondepolarizing neuromuscular blocking agents (NMBA) and neostigmine used to reverse the effect of NMBA in general anesthesia . In this study, the investigators aimed to evaluate time from sugammadex injection to Train-of-four ratio 0.9 who receieved magnesium therapy in reversing the effect of neuromuscular blocking agent during the recovery period and the relationship between magnesium level and duration of action of sugammadex
The investigators propose a randomized trial comparing sugammadex and neostigmine for the reversal of neuromuscular blocks induced by rocuronium or vecuronium in adults having general anesthesia with muscular block for noncardiac surgery.
To shorten induction time, some anesthesiologist gives a priming dose of muscle relaxant before starting Neuromuscular Transmission monitor (NMT). To properly evaluate neuromuscular function during the surgury, baseline supramaximal stimulation of the monitored nerve is mandatory. Not knowing if the priming dose of muscle relaxant affects the supramaximal stimulation current setting, The investigators designed this study to find out.
Magnesium and volatiles anesthetics both have an effect on the neuromuscular transmission. The primary objective of the study is to quantify the effect of a perfusion of intravenous magnesium on neuromuscular transmission measured by electromyography device TetraGraph device in patients undergoing general anesthesia with volatile anesthetics (desflurane, sevoflurane and isoflurane) as compared to intravenous anesthesia with propofol.
The overall objective of this research is to evaluate different laboratory-built and commercially available sensors used to measure the effects of neuromuscular blocking drugs on neuromuscular function during surgery, by measuring evoked thumb twitch response to ulnar nerve stimulation (also known as "twitch monitoring"). The specific aim is to compare mechanomyography, which is the "gold standard" laboratory measurement to assess neuromuscular blockade, to the sensors used in commercially available neuromuscular blockade monitors, such as acceleromyography and electromyography. The study endpoints are the train-of-four count (TOFC), the ratio of the height of the 4th twitch to the height of the 1st twitch (train-of-four ratio, TOFR), and the post tetanic count (PTC). The mechanomyography devices have been constructed in our laboratory and are not commercially available.
Blood loss during liver resection surgery affects patients morbidity, short and long-term mortality. Among non-surgical interventions to minimize intraoperative blood loss and perioperative blood products transfusion, maintaining conditions of low central venous pressure is considered as standard of care. In animals undergoing laparoscopic hepatectomy, reducing airway pressures represents a minimally invasive measure to reduce central venous pressure and therefore bleeding from the hepatic vein. Neuromuscular blocking agents are usually administered during anesthesia to facilitate endotracheal intubation and to improve surgical conditions: a deep level of neuromuscular blockade has already been shown to reduce peak airway pressures and plateau airway pressures in non-abdominal procedures. Such airway pressures reduction can potentially limit bleeding from hepatic veins during transection phase in liver surgery. The aim of the present study is to evaluate the impact of deep neuromuscular blockade on bleeding (as a consequence of reduced airway peak pressure and plateau pressure) in hepatic laparoscopic resections. Patients undergoing laparoscopic liver resection will be randomized to achieve, using intravenous Rocuronium, either a deep neuromuscular blockade (post-tetanic count = 0 and/or = 1 and train of four count = 0) or moderate neuromuscular blockade (train of four count ≥ 1 and/or post-tetanic count > 5) during surgery. Neuromuscular blockade measurements will be performed every 15 minutes. The primary endpoint is to assess the total blood loss at the end of the resection phase.
Skull base tumors are a type of tumor that grow in the area of several skulls behind the cranial cavity. The incidence rate is 2 to 18 per 100,000 people per year; males and females are likely to have a proportional difference in the types of skull base tumors. Cerebellopontine angle (CPA) tumors are the most common neoplasms in the posterior skull base,accounting for 5-10% of skull base tumors.Some different kinds of tumors can grow in cerebellopontine angle. The tumors are more likely to cause some symptoms when they grow large enough to put pressure on the brain. A common traditional treatment for skull base tumors is neurosurgery-craniotomy. However, after the operation, brain may be injured with hematoma, and the instruments used are in contact with the brain. It is still inevitable that there will have complications of minor and major nerve damages, such as facial paralysis,trigeminal neuralgia, tinnitus, sports disorders (ataxia) and so on. Acupuncture has a unique effect on the treatment of the human nervous system. Aim of the study is used acupuncture to improve the complications of the surgery of Cerebellopontine angle tumors in skull base.
The investigators are interested in studying why experienced clinicians make specific decisions regarding the monitoring of patients' physiological states and why clinicians might make decisions that are contrary to current best practices or known evidence. More generally, the program objective is to refine and validate a novel methodology to delineate clinicians' decision-making strategies. More specifically, the investigators will study the decision to reverse neuromuscular blockade at the end of an anesthetic. This clinical decision will be studied in this project because: 1) it has been well documented that a substantial percentage of practitioners do not follow best practices; 2) the variables are relatively circumscribed and well described; and 3) it can be framed as a binary decision. The investigators propose to conduct an observational mixed-methods study developing and using clinical vignettes and cognitive interviews to better understand the decision-making approaches and preferences of clinically active anesthesia providers with regard to their decision-making during clinical anesthesia cases. After developing clinical vignettes and related questions, the investigators will first obtain detailed demographic and clinical practice variables from the participants via a survey. Participants will then review multiple vignettes that present different clinical situations that focus on decisions to reverse neuromuscular blockade and/or extubate the patient. Each participant will provide their decisions for each vignette. The investigators will then conduct an audiotaped interview, using cognitive task analysis methods, to ascertain the factors that played a role in these decisions.