300,000+ clinical trials. Find the right one.

231 active trials for Anesthesia

Memory & Conditioning Under Anesthesia

The purpose of this study is to determine the effects of pain on long-term memory and conditioned physiologic responses in the presence and absence of distinct intravenous anesthetics. Functional magnetic resonance imaging will be used to identify the neural correlates of these phenomena The study will occur over 5 visits and involves no long-term follow up.

Start: July 2020

Low-Thoracic Epidural Anesthesia For Laparoscopic Nephrectomy.

Laparoscopic nephrectomy is a surgical technique to excise a diseased kidney. It's a minimally invasive technique, so when compared to open surgery, it can mean significantly less post-operative pain, shorter hospital stay, earlier return to work and daily life activities, a more favourable cosmetic result and outcomes similar to that of open surgery. Recently, advanced laparoscopic surgery has targeted older and high risk patients for general anesthesia; in these patients, regional anesthesia offers several advantages with improved patient satisfaction. Compared with alternative anesthetic techniques, epidural anesthesia may reduce the risks of venous thromboembolism, myocardial infarction, bleeding complications, pneumonia, respiratory depression and renal failure. The aim of this study is to compare the conventional general anesthetic technique to the regional anesthesia for laparoscopic nephrectomy, in modified lateral decubitus position using low-pressure pneumoperitoneum.

Start: September 2020

Erector Spinae Plane Block for Paediatric Upper Abdominal Surgery

Upper abdominal surgeries are associated with severe postoperative pain. Thus, maintaining effective postoperative analgesia in the paediatric age group is very crucial in terms of future pain perception and chronic pain development. Erector Spinae Plane Block (ESPB) is an interfascial plane block characterized by its ease of application and low complication rates with the introduction of ultrasonography. The aim of this study is to investigate the analgesic effects of ESPB in this particular age-group.

Start: August 2020

Intraoperative Norepinephrine Versus Fresh Frozen Plasma in Patients Undergoing HIPEC to Reduce Renal Insult

comparing the effect of low dose norepinephrine infusion versus fresh frozen plasma in patients undergoing HIPEC to reduce renal insult

Start: October 2020

Pre-oxygenation With High-flow Nasal Cannula in Caesarian Section Under General Anesthesia

The investigators and other groups have demonstrated that high-flow nasal oxygen used during preoxygenation for emergency surgery is at least equally effective as preoxygenation compared to standard tight fitting mask. The investigators also have data from a recent study that indicates that high-flow nasal oxygen might decrease the risk of clinically relevant desaturation below 93% of arterial oxygen saturation. The studies investigating the concept of high-flow nasal oxygen has up to this date excluded pregnant women. Pregnant woman is a patient group with known difficulties to maintain adequate saturation levels during apnoea. Due to smaller functional residual capacity their oxygen stores after preoxygenation are smaller compared to patients with a normal body mass index. The pregnant woman also have a higher oxygen demand and metabolism due to the growing placenta and the fetus. Pregnant women are therefore a patient group where a method that could prolong time until desaturation would be even more valuable and potentially could save lives. Based on the above, the investigators now aim to conduct a clinical pilot study, where pregnant women undergoing caesarian section under general anesthesia are pre and perioxygenated with high-flow nasal oxygen. Data from that group will be compared with patients preoxygenated in a traditional manner with tight facemask. This study is done to evaluate an established technique on a patient category that in theory could gain a lot from it.

Start: March 2021

Assessment of the Pharmacodynamic and Pharmacokinetic Interaction of Remimazolam and Remifentanil

This trial is designed to quantify the pharmacodynamic (PD) and pharmacokinetic (PK) interaction(s) between an anaesthetic drug (remimazolam) and an opioid (remifentanil). Remimazolam is a new anaesthetic drug with a sedative effect, which, in combination with an opioid can be used to achieve general anaesthesia. To date, however, no clinical trials have been conducted to specifically assess the potential for drug-drug interactions between remimazolam and remifentanil. Greater understanding of the potential for such interactions will help define more appropriate dosing regimens with less over-sedation and associated side effects.

Start: April 2021

Opioid Free Anesthesia-Analgesia Strategy and Surgical Stress in Elective Open Abdominal Aortic Aneurysm Repair

Open Abdominal Aortic Aneurysm (AAA) repair is a high-risk surgical procedure accompanied by intense endocrine and metabolic responses to surgical stress, with subsequent activation of the inflammatory cascade, cytokine and acute-phase protein release, and bone marrow activation. There is a proven correlation of surgical stress, which patients undergoing open AAA repair are subjected to, with patient outcome, morbidity/mortality, intensive care unit stay and overall length of stay. Modern general anesthetic techniques have been revised and rely on perioperative multimodal anesthetic and analgesic strategies for improved overall patient outcome. Based on this context of a multimodal anesthetic technique and having taken into consideration the international "opioid-crisis" epidemic, an Opioid Free Anesthesia-Analgesia (OFA-A) strategy started to emerge. It is based on the administration of a variety of anesthetic/analgesic agents with different mechanisms of action, including immunomodulating and anti-inflammatory effects. Our basic hypothesis is that the implementation of a perioperative multimodal OFA-A strategy, involving the administration of pregabalin, ketamine, dexmedetomidine, lidocaine, dexamethasone, dexketoprofen, paracetamol and magnesium sulphate, will lead to attenuation of surgical stress response compared to a conventional Opioid-Based Anesthesia-Analgesia (OBA-A) strategy. Furthermore, the anticipated attenuation of the inflammatory response, is pressumed to be associated with equal or improved analgesia, compared to a perioperative OBA-A technique.

Start: October 2020

Comparison Between Adjuvants Added to Bupivacaine in Adductor Canal Block

Adult patients undergoing anterior cruciate ligament repair under Spinal Anaesthesia will be randomly assigned into one of the following groups (The Four study groups will receive the standard treatment in the form of spinal anesthesia and adductor canal block), using computer generated codes and opaque sealed envelopes: Group DX(DEXAMETHASONE): The patients receive 20ml plain bupivacaine (0.5%) + 8 mg dexamethasone (2ml) in adductor canal block after spinal anaetthesia. Group DM (dexmedetomidine)The patients receive 20 ml plain bupivacaine(0.5)+25 microgram dexmedetomidine( diluted in 2 ml normal saline) in adductor canal block after spinal anaetthesia. Group M (magnesium sulphate):The patients receive 20 ml plain bupivacaine(0.5)+200 milligram magnesium sulphate (2 ml of magnesium 10%) in adductor canal block after spinal anaetthesia. Group C(CONTROL): The patients receive 20ml plain bupivacaine (0.5%) + 2 ml of Normal saline in adductor canal block after spinal anaetthesia.

Start: June 2021

Frontal Electroencephalography of Neonatal Patients Under Sedation With Opioids and General Anesthesia With Propofol.

Frequently, neonates hospitalized in neonatology units require anesthesia for surgery. The drugs used for this purpose are opioids and other anesthetics, such as propofol. Currently, the administration of anesthesia is difficult in neonates due to the neurological immaturity of these patients, the scarcity of adequate pharmacological studies, the prolonged use of one or more sedatives prior to surgery and the limited usefulness of current anesthetic monitoring devices in this population. Electroencephalography (EEG), which has allowed estimation of anesthetic depth in other populations, has been less explored in neonates. To date, there are no EEG markers, correlated with a given dose of anesthesia, that allow an adequate administration in this kind of patients. In this context, a better understanding of the anesthetic effect in the neonatal brain would allow defining characteristic EEG patterns, improving the estimation of anesthetic depth and anesthetic dosage in neonates.

Start: May 2021

3D OLV Training Intervention for Pediatric Anesthesia Trainees

One lung ventilation (OLV) in neonates and children is an advanced skill that is necessary for delivery of safe and quality anesthetic care. The current model of training for OLV in the paediatric patient is composed of the apprenticeship model. Trainees learn the techniques of doing the procedure when they encounter a case that allows for it. The model of training is often inadequate for mastery of skills such as OLV as children in this population often have severe debilitating disease often requiring the most experienced anesthesiologist to perform OLV. This limits the training exposure of anesthesia trainees.

Start: September 2021

Continuous Erector Spinae Plane Blocks for Rib Fractures

Rib fractures are one of the most common injuries in trauma patients. These fractures are associated with significant pain as well as decreased ability to inspire deeply or cough to clear secretions, which together lead to complications of the lungs and breathing which leads to risks of further injury and even death. One recent study found that the ability to move air into and out of the lungs practically doubled with the administration of a single-injection Erector Spainae Plane Block (ESPB) while pain levels nearly halved. However, a single-injection nerve block lasts less than 24 hours while a perineural local anesthetic infusion (also termed a "continuous peripheral nerve block") may be administered for multiple days. This entails inserting a tiny tube through the skin and into the area around the nerves, after which more local anesthetic may be administered prolonging the numbing effects. The possibility of extending the duration of a ESPB with local anesthetic administration via a perineural catheter has not be investigated. We therefore are conducting a randomized, triple-masked, placebo-controlled, parallel-arm study to investigate the addition of a continuous ESPB to a single-injection ESPB following traumatic rib fractures. The primary outcome of this study will be the maximum inspired volume measured by incentive spirometry on the afternoon following the nerve block procedure. We hypothesize that the maximum inspired volume will be significantly increased in the afternoon following the procedure with the addition of a continuous ESPB to a single-injection ESPB.

Start: May 2021

Erector Spinae Plane Block Catheters and Intrathecal Morphine for Hepatic Resection

To determine whether the addition of erector spinae plane (ESP) catheters to existing multimodal analgesic regimen with intrathecal morphine provides superior postoperative analgesia in patients undergoing hepatic resection compared with patients not receiving ESP catheters.

Start: May 2021

Rib Microtia and the Erector Spinae Plane (ESP) Block

The erector spinae plane block is a novel regional anesthetic technique that allows for analgesia of the thorax and abdomen with a peripheral nerve block. This study is being performed to assess the effectiveness of this technique in reducing post-operative pain scores and opiate requirements in pediatric and adult patients undergoing rib cartilage grafting surgeries.

Start: July 2021

PROUD Study - Preventing Opioid Use Disorders

The objective of this study is to pilot an opioid free anesthetic protocol for patients undergoing total hip replacement.

Start: May 2021

High Flow Nasal Cannula in Comparison to Apneic Oxygenation During Foreign Body Removal by Rigid Bronchoscope

To compare the effect of HFNC with standard apneic oxygenation on patient oxygenation and airway protection during foreign body removal by rigid bronchoscope.

Start: April 2021

Effect of Intraoperative Sedation on PND in Elderly Patients

The aim of this study was to identify the effects of different depths of sedation and choices of sedative drugs on perioperative neurocognitive disorders in the elderly patients receiving hip surgery under spinal anesthesia.

Start: July 2021

Bispectral Index and End-Tidal Anesthetic Gas Concentration in Pediatric Patients

The purpose of this study is to investigate the relationship between BIS™ values including EEG profile and anesthetic agents in the pediatric population

Start: May 2021

Evaluation of BIS™ and Levels of Sedation With Common Inhalational Anesthetics in Healthy Volunteers (OLIVER)

To investigate the relationship between BIS™ and inhaled anesthetics across a wide range of anesthetic concentration and hypnotic states, and to provide evidence to support BIS™ performance in use with Isoflurane, Sevoflurane and Desflurane in combination with opioids.

Start: February 2021

Awake Nasal Fiber-optic Intubation of Severely Obese Patients in Lateral Position

Airway management in severely obese patients remains a challenging issue for anesthetists and may lead to life-threatening situations. Awake Fiber-Optic Bronchoscopy Intubation (FOBI) technique is considered as the gold standard when a difficult airway is anticipated to secure the airway and to facilitate the surgery. FOBI is usually done in supine position, while (in conscious patients) lateral position is the most recommended position to keep the upper airway patent. This prospective clinical trial study will test whether awake FOBI in Lateral position will provide a safe profile or a significant advantage over FOBI in supine position, in morbidly obese patients undergoing elective bariatric surgery.

Start: March 2021

Intranasal Dexmedetomidine Sedation and Analgesia During Pediatric Emergency Room Procedures

The study objective is to determine if intranasal dexmedetomidine is a safe and effective sedative drug during small painful procedures in the pediatric emergency room. Patients of the pediatric emergency room at Oulu university hospital with any medical condition requiring a small painful procedure like i.v. cannulation or lumbar puncture are asked to join the investigator's study if they would seem to benefit from a sedative drug during the procedure. Patients are randomly assigned to treatment group receiving intranasal dexmedetomidine 1µg/kg and to placebo group receiving 4,5% saline solution. The primary outcome is the success of the procedure. Cardiovascular and respiratory effects, the pain experienced by the patient, sedation scores and duration of crying are also monitored.

Start: March 2018