View clinical trials related to Remifentanil.
Filter by:Patients with Adolescent Idiopathic Scoliosis may need surgery to correct their scoliosis. General anesthesia is required for this surgery, and a multimodal analgesic regimen using combinations of opioid and non-opioid medications is the standard of care. The purpose of this study is to compare two combinations of total intravenous anesthetic medications in children with Adolescent Idiopathic Scoliosis having posterior spinal fusion surgery. Participants in the study will be randomly selected to receive either Propofol and Remifentanil or Propofol and Dexmedetomidine as their total intravenous anesthesia (TIVA). TIVA is favored over gas anesthesia because gas anesthesia can affect the neurological monitoring necessary for this surgery. The first combination (Propofol + Remifentanil) is the most common one used for this surgery at our institution, and the second combination (Propofol + Dexmedetomidine) is more commonly used in adult spine surgery. Though Dexmedetomidine is not approved for pediatric use by the FDA, it is widely used in pediatric patients for procedural sedation and surgical anesthesia in the US and worldwide. Both anesthetic combinations are used safely in adult and pediatric patients at our institution. Although remifentanil works fast and is an excellent pain medication during surgery, there are reports that it's use can cause increased pain sensitivity and greater need for narcotic pain medication after surgery. This phenomenon is known as opioid-induced hyperalgesia. The investigators hypothesize that avoiding the use of remifentanil in the TIVA by using dexmedetomidine could avoid OIH and thus result in superior postop pain control. Our study's primary goal is to measure the total opioid consumption on postoperative days (POD)# 0 and 1. Our secondary goals are to measure the pain scores on a visual analog scale (VAS) on POD# 0 and 1, measure the time it takes for participants to move their feet to command when surgery is done, and measure the time it takes for participants to be extubated when surgery is done. By comparing these measurements, the investigators hope to find out if there is any significant difference between the two TIVAs in terms of postop opioid requirements, pain scores, and time to wake up from anesthesia. The investigators hope that our study gives us more knowledge on how to better treat postoperative pain in children who have spine surgery to correct their
Percutaneous vertebroplasty has become a mainstay in the management of osteoporotic and malignant vertebral fractures. Procedural analgesia and sedation (PAS) with propofol and remifentanil may provides optimal hypnotic and analgesic effects.
The investigators compared the effects of remifentanil and dexmedetomidine administered under general anesthesia on hemodynamics, postoperative pain, recovery, postoperative nausea, vomiting, shivering, patient's and surgeon's satisfaction in patients undergoing elective rhinoplasty. A single-center, prospective, blinded, randomized controlled trial. After the approval of the hospital ethics committee (KA22/12), fifty volunteers aged 18-65 years who underwent rhinoplasty under elective conditions accepted the study in the American Society of Anesthesiologists (ASA) I-III class. The patients were randomly divided into the remifentanil group (group R) and the dexmedetomidine group (group D). Group R (n=25) was initially to receive remifentanil 0.01-0.2 g/kg/min without intraoperative loading. Group D (n=25) dexmedetomidine, was initiated with a bolus of 1 mg/kg and received 0.2-0.7 g/kg per hour as an infusion during surgery.
This study compares hypnosis via virtual reality to sedation with commonly used intravenous anesthetic agents (propofol and remifentanil) during oocyte retrieval. The main objective of this prospective randomized controlled study will be a reduction of 50 percent of the doses of remifentanil and propofol administered during oocyte retrieval while maintaining satisfaction with the quality of care.
Awake craniotomy require a cooperative patient during resection neurosurgery phase. Anesthesiologist should guarantee analgesia, sedation, nausea and vomiting prevention, while maintaining normal vital parameters. Neurosurgeon could be help by Intraoperative electrocorticography to maximise lesion resection and avoiding neurologic sequelae. Propofol and remifentanyl have been largely used. Dexmedetomidine represents an alternative. However little is known about the role of dexmedetomidine on Intraoperative electrocorticography.
Our aim was to investigate whether remifentanil use in both infusion and bolus techniques could provide sufficient sedation and analgesia without serious adverse effects for central venous access device procedures under monitored anesthesia care.
Background: Application of total intravenous anesthesia (TIVA) may be considered as unpractical when compared with inhalational anesthesia. Although it is mostly not recommended, mixing intravenous agents seems to be popular in clinical practice. The aim of the study was to investigate the possible clinical drawbacks of using remifentanil-propofol admixture (MIXTIVA) for TIVA.
This study will investigate the potential of guiding remifentanil analgesia during cardiac and vascular surgery in moderate to high risk patients requiring general anesthesia.
Tonsillectomy is the commonest operation of childhood and results in considerable pain. Remifentanil is a potent, ultra short acting opioid with a long- established safety record in paediatric anaesthesia that is used to provide intraoperative analgesia. There is evidence from adult studies that remifentanil increases postoperative pain, although this may be ablated if propofol (rather than inhalational anaesthesia) is used or if the remifentanil is tapered rather than abruptly discontinued at the end of surgery. The analgesic effect of gradual withdrawal of remifentanil at the end of surgery has not been studied in children and may have significant clinical implications. The primary measure of efficacy will be the dose of fentanyl rescue analgesia in the peri-operative period (1 mcg.kg-1 bolus for >20% increase in pulse, blood pressure or movement intraoperatively or a FLACC(Face, Legs, Arms, Cry, Consolablity) score of >5 in recovery).
The best opioid for bronchoscopy is still unclear.This randomized double-blind prospective study was conducted on a total of 60 patients who were randomly allocated into 3 groups: Group S received sufentanil 0.1 mcg/kg, Group F received fentanyl 1 mcg/kg and Group R received remifentanil target-controlled infusion with effect-site target concentration of 1ng/ml. Patients in all groups received midazolam to achieve moderate levels of sedation as assessed by the Narcotrend (NT; between B1 and C2). Adverse events, patient tolerance and physician satisfaction were analized.