View clinical trials related to Anesthesia.
Filter by:Ischemia/reperfusion injury following aortic cross-clamping for vascular surgery leads to systemic hemodynamic and microcirculatory perturbances. The use of different anesthetic regimens may have an impact on tissue perfusion. The aim of this study was to explore changes in microvascular perfusion in patients undergoing elective open abdominal aortic aneurysm repair under balanced or total intravenous anesthesia. Prospective observational study on 40 patients scheduled for elective open infrarenal abdominal aortic aneurysm repair, who received balanced (desflurane + remifentanil, n=20) or total intravenous anesthesia (TIVA, propofol + remifentanil using target-controlled infusion, n=20) according to the clinician's decision. A goal-directed hemodynamic management was applied in all patients. Hemodynamics and arterial/venous blood gases were compared before anesthesia induction (baseline) and at end-surgery. Changes in sublingual microvascular flow and density were assessed with incident dark field illumination imaging. Near infrared spectroscopy was applied on the thenar eminence with a vascular occlusion test (VOT) to assess variations in the peripheral muscle tissue oxygenation and microcirculatory reactivity.
The investigators propose a new wash-in technique for sevoflurane low flow anesthesia with fresh gas flow of O2:N2O or O2:air 1:1 L/min with sevoflurane 8%. The objective of this study is to identify time to achieve alveolar concentration of sevoflurane at 1, 1.5, 2, 2.5, 3, and 3.5%
Patients in the study will be grouped as 1st group Propofol, 2nd Group Sevofluran.Preoperative blood will be taken from the patients and cortisol, acth, glucagon, aldosterone, PGE2, CRH will be studied. During the operation, the patient's systolic blood pressure, diastolic blood pressure, mean arterial pressure, heart rate, oxygen saturation will be followed. Analgesia will be provided according to the body movements of the patient and VAS measurement will be performed. The patient's pain will be assessed by the VAS (Visuel Analogue Scale) scoring system and during the first hour postoperatively after the patient's consciousness is complete . Hormones such as cortisol, acth, glucagon, aldosterone, PGE2, CRH will be studied biochemically in the follicular fluid and blood of the patient postoperatively. The aim of in the study is to compare the effect of propofol and sevoflurane routinely applied in IVF centers on postoperative pain scores and stress hormones in blood and follicular fluid in a painful and stressful application of egg collection
For the patients undergoing laparoscopic bariatric surgery, application of low (PEEP) with frequent alveolar recruitment maneuver could be beneficial and superior to conventional ventilation with a high (PEEP) in improving lung compliance, better oxygenation and less dead space .This hypothesis could be achieved by minimizing the expected lung atelectasis during anesthesia for this particular kind of laparoscopic surgery without any haemodynamics alterations.This trial was designed to study the effects of alveolar recruitment strategy with low PEEP versus conventional mechanical ventilation with higher PEEP on the patients undergoing laparoscopic bariatric surgeries. The primary end point of the study will be the achievement of the highest dynamic lung compliance (Cdyn). Improvement of intraoperative oxygenation (Pao2/Fio2) and achievement of a lower dead space ratio (vd/vt), with stable intraoperative haemodynamics will be considered as secondary outcome
The investigators are performing this research study to find out how and where the anesthetic drugs sevoflurane and ketamine act in the brain. Sevoflurane and ketamine are anesthetics (a drug or agent used to decrease or eliminate the feeling of pain by causing unconsciousness). The investigators will study the brain using a machine that records the brain's electrical activity, called an electroencephalogram (EEG).
This study compares two groups of patients undergoing a gynecological surgey under general anesthesia: one group in which intraoperative analgesia is guided by the Analgesia-nociception index, and another group in which intraoperative analgesia is managed as in standard practice. The objective is to assess if the Analgesia Nociception Index may result in a decrease in total analgesic drugs consumption, a decrease in post-operative pain and in chronic pain development.
Perioperative non-invasive measurement of a patient's peripheral arterial oxygen saturation has become an accepted standard of care endorsed by anaesthesiologists and their regulatory bodies throughout the world. Pulse oximeters are an integral item on the World Health Organisation's Surgical Safety Checklist which is performed prior to the commencement of every surgical procedure. They are also utilised by other medical professionals and patients in various scenarios. When compared to conventional bedside pulse oximeters, portable fingertip devices have the advantages of cost-effectiveness, high portability, ease of use and battery operation. A review of recent literature reveals a paucity of accuracy studies in adult patients with various comorbidities in the clinical setting. Most data has been obtained under ideal laboratory conditions utilizing healthy adult volunteers. This study aims to pragmatically investigate the performance of a portable fingertip pulse oximeter in adult patients in a hospital setting.
This study aims to investigate the current organization and management of postoperative pain in Denmark, especially for invasive pain treatment modalities (epidural infusions, PCA and regional blocks), in a national survey covering the activities in Danish Hospitals. This study is an electronic questionnaire survey, that aim to describe and map the foundation for future developments within, and improvement of, postoperative pain management.
modelling of tidal volume with inhalational anesthetic concentration
Prospective association study to analyse patients' outcome after bariatric surgery. Outcome comprises postoperative pain, analgesia, postoperative side-effects, long-lasting pain, patients' impairment in daily living.