View clinical trials related to Anesthesia.
Filter by:The investigators plan to determine the onset time and incidence of hemidiaphragmatic paresis (HDP) with a double injection supraclavicular nerve block in patients presenting for upper extremity surgery below the elbow. The hypothesis is HDP following supraclavicular brachial plexus block occurs with-in 15 minutes of block performance and is not associated with subjective dyspnea.
The stress response to surgery is a result of tissue injury with local and systemic inflammation that contributes to the postoperative outcome. Anesthesia is known to effect perioperative stress response Regional anesthesia modifies stress response through afferent blockage whereas general anesthesia affects the stress response via central modulation. High sensitive C-reactive protein and neutrophil to lymphocyte ratio are used for evaluation of inflammation. The aim of this study was to document the value hs-CRP and NLR in perioperative stress response in two different anesthesia methods applied to term pregnant women undergoing elective ceserean section (C/S).
The aim of this clinical trial is to evaluate the ratio of hypnotic to analgesic potency of sevoflurane and isoflurane at equi-minimum alveolar concentration using EEG analysis.
The aim of this study is to compare the patient state index values produced by equi-MAC of sevoflurane and desflurane in patients undergoing single-agent volatile anesthesia.
Postoperative delirium is an acute mental syndrome that is caused by diffuse cerebral dysfunction resulting from the action of predisposing and precipitating factors acting together. It is associated with an increase in mortality and postoperative morbidity and prolongs the period of hospitalization of the patient Videolaparoscopic surgery has been increasingly used as a therapeutic and diagnostic method. In order to have a good visualization of the anatomical structures on which it will act, it is necessary to introduce gas into the cavity, a mandatory component known as pneumoperitoneum. This technique gives special characteristics for the conduction of anesthesia, since the positive intra-abdominal pressure results in changes in the patient's physiology. Some types of laparoscopic surgery require the position of Trendelenburg for better visualization of the operative field. Among the changes related to this position are the increase in cardiac output and intracranial pressure. In order to optimize the anesthetic procedure, anesthetic blocks have been increasingly used, especially the spinal. The association of general anesthesia with spinal anesthesia, followed by its contraindications is advantageous, because lower doses of anesthetic agents are necessary for the maintenance of general anesthesia. This association results in an earlier awakening, a reduction of nausea / vomiting, postoperative pain, length of hospital stay, cost effectiveness and greater patient satisfaction. As a disadvantage, by associating general anesthesia with spinal anesthesia, patients become susceptible to the adverse events of spinal anesthesia. Among these, the most common are headache, hypotension, nausea and vomiting, pruritus, urinary retention and tremor. Performing spinal anesthesia with opioids alone, without the use of local anesthetic is also possible, with morphine being the most used. The benefit of this variation of technique is analgesia for a period of 12 to 24 hours, without the cardiovascular consequences resulting from the action of the local anesthetic. JUSTIFICATION: There are no studies in the literature evaluating The objective of this study is to analyze if the anesthetic techniques employed, general anesthesia or general anesthesia associated with subarachnoid block, for videolaparoscopic oncologic surgeries, in Trendelenburg position, differ in relation to the incidence of delirium in the postoperative period.
The aim of this study is to compare the peripheral perfusion index values produced by equi-MAC of sevoflurane and desflurane in patients undergoing single-agent inhalation anesthesia.
This study evaluates the influence of two different end-inspiratory pause (EIP) times on respiratory mechanics and arterial gases of surgical patients when ventilated under an open lung approach (OLA) strategy. The investigators evaluate the impact of using EIP 10% versus 30% of the inspiratory time on a volume control model. The investigators also analyse the potential influence of these EIP on pulmonary gas distribution measured by electric impedance tomography.
The purpose of this study is to evaluate the postoperative pain and discomfort using flurbiprofen axetil or nalbuphine administration after orbital decompression under general anesthesia.
This study is being conducted to evaluate and assess the electroencephalography wave patterns in different age patients undergoing surgery under general anesthesia. The aim of our study is to compare the raw EEG waves in different age patients and analyze any changes in these patterns among various age groups and which of these groups will have the EEG signal of high-frequency waves or low frequency waves. Previous studies have shown that light sedation is often accompanied by decreasing posterior alpha waves and increasing the intensity of frontal/central beta waves. It is therefore of neuroscientific interest to assess whether the electroencephalographic correlates of sevoflurane-induced unconsciousness have different or similar frequency range among the age groups.
Preoxygenation remains an important determinant of morbidity and mortality in anesthesia despite advances in mask ventilation and difficult intubation management. 1. The usual practice Preoxygenation prior to the injection of the anesthetic agents is the administration of pure oxygen to delay the occurrence of hypoxemia during the apnea phase and intubation maneuvers. It consists of applying a mask on the patient's face and allowing it to ventilate, ensuring a perfect seal of the device. The end of oxygen exhalation fraction is a good reflection of the alveolar oxygenation and a value of 95% corresponds to a "total" alveolar oxygenation. When this value is reached, the injection of the anesthetic agents (hypnotic, morphine and myorelaxant) leads to the loss of consciousness and apnea, which forces to continue the manual ventilation to the mask. Intubation is performed when the myorelaxation is complete. 2. Anesthetic induction "without the hands" The Optiflow Anesthesia (Fisher and Paykel Healthcare, Auckland, New Zealand) device provides heated, Humidified High-Flow Nasal Oxygen. The hypothesis of this study is that Humidified High-Flow Nasal Oxygen, should allow anesthetic induction without having to impose the patient the establishment of a facial mask for several minutes before anesthetic induction and the doctor anesthetist assisted ventilation with the mask before intubation.