View clinical trials related to General Anesthesia.
Filter by:The purpose of this study is to determine whether an operative hemodynamic optimization using the plethysmographic variability index during orthopedic surgery could decrease the length of hospital stay and the postoperative morbidity.
During non urgent surgery, general anesthesia might induce enterocyte damage. I-FABP is a performant biomarker of enterocyte damage. We aimed to study whether patient ongoing general anesthesia for non-urgent surgery have an elevation of plasma I-FABP concentration.
To explore the application of target controlled infusion of etomidate combined with propofol in the maintenance of anesthesia during brain surgeries.
Postoperative respiratory failure, particularly after surgery under general anesthesia, adds to the morbidity and mortality of surgical patients. Anesthesiologists inconsistently use positive end-expiratory pressure (PEEP) and recruitment maneuvers in the hope that this may improve oxygenation and protect against postoperative pulmonary complications (PPCs), especially in obese patients. While anesthesiologists tend to use PEEP higher than in non-obese patients. While it is uncertain whether a strategy that uses higher levels of PEEP with recruitment maneuvers truly prevents PPCs in these patients, use of higher levels of PEEP with recruitment maneuvers could compromise intra-operative hemodynamics. The investigators aim to compare a ventilation strategy using higher levels of PEEP with recruitment maneuvers with one using lower levels of PEEP without recruitment maneuvers in obese patients at an intermediate-to-high risk for PPCs. We hypothesize that an intra-operative ventilation strategy using higher levels of PEEP and recruitment maneuvers, as compared to ventilation with lower levels of PEEP without recruitment maneuvers, prevents PPCs in obese patients at an intermediate-to-high risk for PPC.
To evaluate the effect of pre-injection of lidocaine on myoclonus induced by induction with etomidate during general anesthesia in elderly patients
Supraglottic airway devices (SADs) are well established in pediatric anesthetic practice. The pediatric i-gel and the self-pressurised air-Q (air-Q) are new supraglottic airway devices for children. The i-gel is made of a soft, gel-like elastomer with a noninflatable cuff. The air-Q is a new single-use device that may optimise the airway seal while reducing the potential for postoperative complications such as sore throat. The overall structure of the air-Q SP is identical to the original air-Q, except with regard to the inflatable cuff. The aim of this randomized trial was to compare the clinical performance of the i-gel and the air-Q SP.
Preoperative anxiety can be detected via structured and standardised screening by the State - Trait Anxiety Inventory (STAI) and Self rating Depression Scale (SDS) questionnaire. The investigators evaluate the relation of perioperative anxiety and heart rate variability, also the impact of general anesthesia on the change of heart rate variability.
Investigators hypothesized that goal-directed fluid therapy using stroke volume variation will improve postoperative recovery in patients undergoing free flap reconstruction after head and neck cancer resection. Investigators will compare the effect of goal-directed fluid therapy using stroke volume variation on recovery in patients undergoing free flap reconstruction after head and neck cancer resection.
In patient who are predicted to be difficult to intubate with a standard direct laryngoscope well use flexible optical intubation via a supraglottic airway devise (the Ambu Aura-i). Patients are randomly assigner to a single- or a multiple- use flexible optical scope. We hypothesize that intubation is obtained equally effective with both types of flexible scopes
The investigators designed a prospective, randomized, placebo-controlled study to determine whether thoracic epidural anesthesia(TEA) with different local anesthetics has different influences on the propofol dose during induction.