View clinical trials related to Intraoperative Awareness.
Filter by:This multicenter open-label trial is designed to evaluate if the implementation of an enhanced peri-operative care protocol results in an optimal intraoperative condition of the patient and in a decrease in incidence of anastomotic leakage after colorectal resection as compared to current practice.
Perioperative measurement of the Depth of anaesthesia is currently recommended part of daily anaesthesia good clinical practice. The optimal depth of anaesthesia measured by Bispectral index could be between 40-60. The lower (over 60) depth of anaesthesia could be associated with accidental intraoperative episodes of awareness and deeper (below 40) anaesthesia could lead to higher adverse events or even haemodynamic instability.
Background and Aim: Pediatric gastrointestinal (GI) endoscopy is an increasingly common procedure performed to investigate and diagnose problems in the GI tract in children. Procedures in pediatric endoscopy units are routinely performed under sedation and general anesthesia, unlike adult endoscopy. Nurses working in pediatric gastroenoscopy units where sedoanalgesia is applied have important duties and responsibilities in terms of quality standards in preoperative, intraoperative and postoperative periods. Considering the increasing need for high-quality pediatric endoscopy applications, the attitudes and behaviors of nurses about sedation in pediatric patients are important as a member of the team. There is almost no literature on the experience and awareness of pediatric endoscopy nurses in clinical practice, and this encourages our team to conduct a survey across our country and to develop knowledge and clinical practices. With this questionnaire survey, it was aimed to evaluate the experience and attitudes of the endoscopy nurses working in the pediatric endoscopy unit in our country on sedation/general anesthesia management for pediatric patients
Awareness during general anesthesia - that has an incidence between 0.1% and 0.9% of cases and may be more in elderly - remains a concern for anesthesiologists. Awareness experiences range from isolated auditory perceptions to reports of a patient being fully awake, immobilized, and in pain. The isolated forearm technique allows assessment of consciousness of the external world (connected consciousness) through a verbal command to move the hand (of a tourniquet-isolated arm) during intended general anesthesia.
The study aimed to retrospectively review cases of brain arteriovenous malformation that were surgical resected with the patient awake during the procedure.
Pediatric Validation of CONOX Monitoring device (qCON and qNOX indices) for anesthesia depth during surgery
Our aim is to investigate the effect of minimal flow anesthesia with sevoflurane on hemodynamics and arterial blood gas parameters in laparoscopic cholecystectomy operations.
The shortage of anesthetic agents can lead to intraoperative awareness while overdosing can trigger severe intra and postoperative problems. Therefore, monitoring anesthesia's depth (DoA: Depth of Anesthesia) is a crucial but still challenging task. Although some commercial monitors are based on electroencephalogram (EEG), designed to quantify DoA, their use in clinical practice has limitations. On the other hand, heart rate variability (HRV) has valuable information about physiological states, both from the heart and the organism. Classical indices derived from HRV have been shown to be able to differentiate the different stages of anesthesia. In this study, it is proposed to create a model to monitor DoA combining several HRV indices. Patients will be divided into three groups, according to the type of anesthesia to which they will be submitted (inhalation, total or balanced intravenous) and will have the electrocardiogram recorded during the entire surgical procedure. Various HRV indices will be calculated, and machine learning techniques will be used to combine and identify the most relevant index to compose a score that reliably represents DoA. Several commercial devices have been developed to monitor the level of consciousness during anesthesia. Among the most popular tools are included: Narcotrend TM (MonitorTechnik, Bad Bramstedt, Germany); the M-Entropy TM (GE Healthcare, Helsinki, Finland); Nindex SA (Controls, Montevideo, Uruguay) and the Bi-Spectral Index (BIS, TM Medtronic-Covidien, Dublin, Ireland). In this study, BIS or Nindex will also be monitored during the entire period that the patients remain anesthetized and will later be used to compose the DoA score based on HRV. As a result, a computer program will be created to monitor DoA in real-time.
Awareness, or explicit recall, under sedation is often intended and expected by anesthesiologists and is assumed that does not associate with any sequelae. Thus, awareness under sedation is a common event and is estimated to occur in around one-quarter of patients in our population. However, two recent registry studies suggested some patients with awareness under sedation have comparable psychological sequelae to those patients with awareness during general anesthesia. As such, we plan to conduct a a single center, prospective cohort study to evaluate the incidence, experience and psychological consequence of awareness under sedation. In this study, we will prospectively include 2500 patients who will be scheduled to have major joint replacement surgery under regional anesthesia and sedation at University Hospital, London Health Sciences Center. All participants will be assessed at four separate time points including: 1. Enrollment/Surgical Preparatory Area (~ 2 hours before surgery) 2. Post Anesthesia Care Unit (or up to 6 hours after surgery) 3. Postoperative day one (in hospital) 4. Postoperative 3 months (expected to be after discharge via telephone)
Intraoperative awareness which means the recall of experiences recorded in patients' memories during general anesthesia in the postoperative period is an important issue in anesthesia practice. The aims of this study are to investigate the incidence and causes of awareness during general anesthesia, incidence of dreaming during anesthesia, intra-operative experiences of patients who report awareness, the risk factors that may be associated with awareness, to analyze the frequency of posttraumatic stress disorder in cases with awareness and possible awareness, the risk factors that may be associated with PTSD in Turkish adults. Adult patients will be evaluated 4 time following emergence (a) One hour after emergence, (b) Twenty four hour after emergence (c) One week after emergence (d) One month after emergence. The first interview will be made face-to-face in the recovery unit, and other interviews will be made by phone. Each interview will be conducted using the same structured interview (Brice Interview). Descriptive statistics will be used to determine the incidence of awareness. χ2 test will be used for comparison between groups. Logistic regression will be used to determine the risk factors associated with awareness and PTSD. We believe that this study will contribute to the prevention of the problem by determining the real frequency and causes of intraoperative awareness under general anesthesia, determining the experiences and results of patients, and analyzing the associated risk factors.