View clinical trials related to Anesthesia.
Filter by:This study investigates the role of the anesthetic agents propofol and sevoflurane on renal function in otherwise healthy patients undergoing basic back surgery.
The relationship between anesthetic medication and postoperative major cardiac and cerebral complications will be studied using logistic regression model.
The investigators have recently shown that LSIB in combination with a suprascapular and a cervical plexus block is a very good alternative for arthroscopic shoulder surgery. However, the investigators believe the total volume of local anesthetic for LSIB may be reduced. For shoulder surgery there is no need to block the medial cord and the investigators therefore hypothesize a significantly lower MEV95% by applying a selective lateral and posterior cord block
Patients with respiratory disease have an increased risk of developing complications perioperatively. The use of regional anesthesia decreases this risk with better postoperative outcome. The aim of this study is to compare the safety and efficacy of thoracic spinal versus thoracic epidural anesthesia for open nephrectomy in patients with obstructive/restrictive lung disease.
Opioids remain the cornerstone for perioperative analgesia, albeit frequently associated with side effects. Most of these side-effects are dose-dependent. Thus intra-operative monitors are necessary to measure the balance between Nociception and Anti-Nociception (NAN balance) by an adequate opioid administration. Recently the NOL monitor was released.The NoL index ranges from 0 to 100 and is based on a nonlinear combination of nociception-related physiologic variables, specifically heart rate (HR), heart rate variability at the 0.15- to 0.4-Hz band power, photoplethysmograph wave amplitude (PPGA), skin conductance level, number of skin conductance fluctuations, and their time derivatives. The NoL index estimates the nociceptive/antinociceptive state from these component measures using random forest regression. In our department, a combination of TCI propofol (Schnider model) and remifentanil (Minto model) is used to for most of the anaesthetic procedures, including cardiac anaesthesia. Remifentanil is titrated to prevent an increase in blood pressure and hearth rhythm at noxious stimuli, such as surgical incision, and adapted following hemodynamic trend during surgery. The hypothesis of this study is to develop a calibration test using the NOL index variation to define the individual most appropriate NAN balance using remifentanil TCI before the start of surgery and before a very strong noxious surgical stimulus such as surgical incision in non-cardiac and cardiac surgery. Before the start of surgery, the investigators want to titrate in each patient the remifentanil Ce required to abolish the NOL index response to a calibrated noxious tetanic stimulus (Tetanus 60 mamp, 100 Hz, 30 seconds). Thus this individual remifentanil Ce will be the remifentanil level programmed before surgical incision. NOL and hemodynamic responses will be recorded during the entire duration of surgery. Study protocol amendment: validation of the calibration study: Data from the calibration phase will be used to derive a formula to predict individualised anti-nociception for incision.
The aim of this study is to evaluate whether the use of Sugammadex for reversing the neuromuscular blocking effects of rocuronium during neurointerventional procedures can speed recovery of neuromuscular function. Half of participates will receive Neostigmine with glycopyrrolate, while the other half will receive Sugammadex.
During any general anaesthetic which involves muscle relaxation artificial breathing is required. This is most commonly provided by pushing air under pressure (positive pressure ventilation) into the lungs via a tube in the airway (the tracheal tube). It has been observed for many years that with this form of breathing the distribution of gas within the lungs differs from that seen during 'natural' breathing: more of the gas goes to the upper parts of the lung than lower parts. This change in how the gas is distributed can lead to problems with how well oxygen is taken up by blood and carbon dioxide removed from the body. Previous work using mathematical modelling has found that the position of the tracheal tube might affect air distribution, but this has previously been difficult to study in 'real life', requiring the use of radioactive dyes and computerised tomography (CT). However a bedside test is now available which allows us to study these changes rapidly and non-invasively, using electrical impedance tomography (EIT). The EIT device is commercially available (PulmoVista®, Draeger UK) and is used in hospitals worldwide as a bedside monitor of lung ventilation. This study aims to investigate the effect of tracheal intubation on regional ventilation of the lungs by comparing measurements before and after the patient is anaesthetised and intubated. The investgiators aim to show whether altered patterns of ventilation are caused by patients simply being asleep and ventilated, or whether these changes are due to the use of a tracheal tube itself. The exact effect of tube position will also be studied by measuring ventilation as the tube is deliberately advanced until it enters one of the lungs. This will give us information about the ideal position for a tube within the trachea to promote optimal ventilation patterns within the lungs
This is a randomized clinical trial in healthy volunteers. 12 volunteers will have suture-method catheters placed in the adductor canal of each leg using the long-axis plane and short-axis plane technique. The investigators will inject LA in both catheters to confirm correct position. Following return of cold sensation the catheter is then displaced intentionally. The orifice is identified by injection of isotonic saline to ensure a proper displacement (spread outside of the adductor canal) and the distance from the delivery orifice of the catheter to the adductor canal is noted. A second investigator will assess distance from the LA delivery orifice of the catheter to the adductor canal using hydrodissection with isotonic saline to pinpoint the delivery orifice and subsequently reposition the catheter to obtain LA spread within the adductor canal. Successful repositioning is defined as a combination of LA spread within the adductor canal and loss of cold sensation on the medial part of the lower leg.
dexmedetomidine is an alpha 2 adrenergic receptor agonist that is given either systemically or combined to local anesthetics during regional blocks. Investigators studied the combination of dexmedetomedine/bupivacaine versus bupivacaine alone for caudal blockage in pediatric patients undergoing supra - umbilical surgeries.
This study is designed as a prospective observational, non-controlled, non-interventional study. The aim of this study is to obtain a broad user perspective of the aScope™ 4 Broncho, focusing on the device functionalities within regular clinical practice and therapeutic use of flexible bronchoscopes in the OR and ICU. The study will include a minimum of 100 adult patients admitted to the operating room (OR) or Intensive Care Unit (ICU) undergoing at least one bronchoscopy procedure. The inclusion will stop when 100 fully evaluable patients or a maximum of 150 patients have been enrolled. The involved sites will include patients during a five months' period, from September 2017 to January 2018.