View clinical trials related to General Anesthesia.
Filter by:The purpose of this study is to compare - the non invasive measurement of arterial pressure (CNAP monitor) - with the invasive measurement of arterial pressure (radial artery catheter) during induction and maintenance of general anesthesia
The investigators aim to compare two different types of supraglottic devices for tracheal intubation in patients undergoing elective surgery under general anesthesia. Our hypothesis is that the use of the I-gel supraglottic airway will result in a higher first attempt success rate of blind tracheal intubation.
The aim of the present study was to measure the inspired gas temperature and humidity of the anesthetic circuit in the Dräger Primus machine and esophageal temperature with or without and heat and moisture exchanger (HME) and low-flow gas during anesthesia in patients submitted to gynecological surgeries.
Laryngeal mask airway (LMA) is routinely used for some patients who have surgery under general anesthesia. LMA is placed in the mouth and allow the anesthesia to be given without having to put a breathing tube in the throat. Previous studies have focused on the effect of different anesthesia medicines on optimal condition for LMA use. The objective of the present study is to find the optimal time for LMA insertion.
The purpose of this study is to compare two insertion techniques of large size ProSeal laryngeal mask airway. We hypothesized that insertion of ProSeal laryngeal mask airway with 90-degree rotation would reduce the contact surface between the device and pharyngeal wall and make it easy to advance the device over the smooth angle against the posterior pharyngeal wall.We compared the success rate and incidence of complication of the standard technique with the rotational technique.
Comparison of two regimens (Sevorane/LMA ctr. Propofol/Remifentanil) for children undergoing MRI in general anesthesia.
The purpose of this study is to determine the effect of inhaled anesthetic drugs upon diastolic heart function (heart suction and filling performance) in patients who are undergoing coronary bypass surgery.
The use of ultrasound is becoming widespread to guide the placement of arterial lines for both vascular access and regional anesthesia in the field of anesthesia. Arterial line placement can be challenging, especially in the pediatric population. Frequently multiple attempts are required with relatively high failure rates. This can result in excessive needle punctures and extended OR times. A few studies have looked at the use of ultrasound to decrease OR time and increase success rates both in adult and pediatric populations. These studies compared the traditional palpation method with either short axis or long axis views of the vessel using ultrasound guidance. No study to date has compared short axis and long axis views for arterial line placement in either the pediatric or adult population. Our study compares success rates and OR times when long and short axis methods of arterial line insertion are employed in the pediatric population.
Previous studies on animals suggest that inhalational anesthetics can reduce vascular tension in vitro resulting in vasodilation and decrease in blood pressure. This role for inhalational anesthetics has essential clinical implications such as the condition of sepsis or septic shock or other shock-associated states during which the blood vessel constricts strongly and leads to circulation dysfunction. The vasodilation property of these anesthetics including halothane, isoflurane, sevoflurane, desflurane and enflurane enables them to be better options than other general anesthetics in many clinical conditions needing the vasculature to be dilated. The investigators hypothesized that these inhalational anesthetics can evoke vasodilation measured with ultrasonography during general anesthesia in vivo as the in vitro studies displayed.
Sevoflurane is widely used for induction of anaesthesia. Several studies showed EEG abnormalities during mask induction with sevoflurane. The aim of our study was to test the induction target concentration of sevoflurane on the spikes wave occurrence.