View clinical trials related to Anesthesia, General.
Filter by:The goal of this clinical trial is to learn about the effects of binaural beats on maintenance of general anesthesia in patients undergoing thyroidectomy without intraoperative neuromonitoring. The main question it aims to answer is: - 1) Does applying binaural beats during surgery reduce the gas anesthetics (especially sevoflurane) requirement to maintaining adequate anesthetic depth during general anesthesia? - 2) Does applying binaural beats during surgery affect intraoperative hemodynamic stability or post operative nausea and vomiting? Participants will wear headsets with a sound generator which contains music files (binaural beat file in the intervention group (BB) ; silent file in control group (C)) according to the randomization. Researchers will compare the BB and C group to see if intraoperative binaural beats reduce the requirements of sevoflurane for maintaining adequate anesthetic depth.
This study is a randomized controlled trial to evaluate whether EEG-guided calibration of inhalation agents can reduce occurrence of EEG discontinuity in infants during general anesthesia.
In the European Society of Anaesthesiology and Intensive Care (ESAIC) guideline on the use of neuromuscular blockers published in 2023, it was suggested that sugammadex could be used to reverse deep and moderate neuromuscular blockade, and that neostigmine could be used to reverse superficial neuromuscular block (expressed as Train-of-Four Ratio (TOFR) 0.4 and above) to TOFR 0.9. Therefore, it has been hypothesized that a transition from deep neuromuscular block to superficial neuromuscular block can be achieved with lower than standard dose of sugammadex, followed by usual dose of neostigmine which results complete neuromuscular recovery from superficial neuromuscular block. This study is planned with 2 stages. In the first phase of the study, the main goal is to determine the dose of sugammadex that would reverse the rocuronium induced deep neuromuscular block (PTC 1 to 3) to superficial neuromuscular block (TOFR: 0.4) in 95% of patients in 5 minutes following administration.
Hypotension is common during surgery and about one-third of hypotension occur during the period from anesthesia induction to skin incision. Therefore, monitoring blood pressure during this period is crucial. Two methods are used for measuring blood pressure during surgery: the intermittent measurement method (oscillometric method) and the continuous measurement method (arterial catheterization method). The latter is frequently used in surgical patients who require meticulous hemodynamic management, although there is no clearly defined indication for its use. Despite the benefits of arterial catheterization, it is often delayed after induction of general anesthesia, and blood pressure is monitored intermittently using the oscillometric method. A recent study showed that continuous arterial pressure monitoring using arterial catheterization method during the induction of general anesthesia reduced hypotension significantly compared to 2.5-min interval intermittent arterial pressure monitoring using oscillometric method. The study was conducted on patients scheduled for continuous arterial pressure monitoring during surgery and the group with continuous arterial pressure monitoring showed significantly lower incidence of hypotension during the first 15 minutes of anesthesia induction. However, measuring blood pressure using the oscillometric method at 1-min interval, rather than 2.5-min interval, may not be significantly inferior to continuous monitoring via arterial catheterization in terms of hypotension occurrence. This study aims to compare hypotension incidence between arterial catheterization method and oscillometric method with 1-min interval during induction of anesthesia in non-cardiac surgery patients.
The aim of our study is to evaluate the effectiveness of a nociception monitor in providing adequate postoperative analgesia for patients needing critical care after surgery. Besides, the study searches to determine the difference between the amount of analgesic medication used when guided by nociception or standard pain management protocols. It is also aimed to reveal the incidence of delirium when pain management is managed under the nociception level index (NOL) guidance. 60 postoperative patients admitted to the postanesthesia care unit (PACU) after general anesthesia for surgery for more than 2 hours will be included and allocated into 2 groups(n=30): the control group (Group A) and the study group (Group B). Group Standard of care will be followed with standard monitorization only along with pain scales and receive rescue analgesia according to them. However, Group NOL will acquire NOL monitorization throughout the ICU stay and have the same rescue analgesia under NOL guidance with concurrent pain scales. Data to be recorded are total postoperative analgesic consumption, NOL values along with CPOT scores, and delirium.
The investigators will compare whether there is a significant difference in the time required for general anesthesia recovery according to application of the binaural sound after surgery.
Flumazenil rapidly antagonizes benzodiazepines (BZDs); it may induce agitation, seizure, or delirium, especially when applied to patients who have taken BZDs for a long time. On the contrary, it may help patients regain consciousness in a stable and calm state by appropriately reversing the central nervous system depressant effects of BZDs. In this study, we aim to investigate the impact of flumazenil on the emergence delirium in patients anesthetized with remimazolam, the short-acting BZD drug.
Emergence agitation (EA) is a transient, self-limited, non-fluctuating state of psychomotor excitement, which closely revolves around the emergence of general anesthesia. Uncontrolled EA during the recovery period increases the potential risk of injury to patients and medical staff, resulting in varying degrees of adverse consequences, such as elevated blood pressure, incision rupture, bleeding, cardio-cerebrovascular accidents and so on, leading to a great waste of resources. Accumulating scientific evidence indicates that the incidence of EA is related to the use of perioperative sedative drugs. As a novel ultra-short-acting benzodiazepines drugs, Remimazolam has been accepted for induction and maintenance of clinical anesthesia. Compared to traditional benzodiazepines drugs, Remimazolam combines the safety of midazolam with the effectiveness of propofol, and also has the advantages of acting quickly, short half-life, no injection pain, slight respiratory depression, independent of liver and kidney metabolism, long-term infusion without accumulation, and has a specific antagonist: flumazenil. This study aims to investigate whether perioperative sedation of Remimazolam besylate, propofol, and sevoflurane have different effects on the incidence of emergence agitation and hemodynamics in patients undergoing laparoscopic abdominal surgery.
Many drugs have an influence on neuromuscular transmission. In clinical practice, neuromuscular blocking agents are commonly used, but even in the absence of neuromuscular blocking agents, anesthetic drugs can influence neuromuscular transmission. Especially volatile anesthetic agents have a clinical impact on neuromuscular transmission, they have been shown to prolong and deepen the effect of neuromuscular blocking agents. But even in the absence of neuromuscular blocking agents, volatile anesthetics can impair neuromuscular transmission. One mechanism of action is the desensitization of the acetylcholine receptors by shifting them from a normal to a desensitized state. This effect can weaken neuromuscular transmission by reducing the margin of safety that normally exists at the neuromuscular junction, or can cause an apparent increase in the capacity of neuromuscular blocking agents to block transmission. In this study, the influence of sevoflurane and propofol on the maximum force, maximum speed of contraction and relaxation will be measured at the adductor pollicis in patients having general anesthesia without the use of neuromuscular blocking agents. Maximum force and speed of contraction and relaxation will be measured before and after anesthesia by either sevoflurane or propofol. Primary outcome is the influence of either anesthetic agent on maximum muscular force and speed of contraction - relaxation, and if this influence is greater for volatile anesthetic agents than for intravenous anesthetic agents.
The goal of this observational study is to learn about the effects of total intravenous general anesthesia with target controlled infusion and sevoflurane based balanced general anesthesia on hemodynamic parameters and cardiac enzyme levels in patients undergoing total abdominal hysterectomy.