28 Clinical Trials for Various Conditions
At present clinicians have no way to reverse anesthesia. Patients wake when their bodies clear the anesthetic. Most people wake quickly, but some do not. All patients have memory and other cognitive problems after waking from anesthesia. In studies on animals, the investigators observed that caffeine caused rats and mice to wake much more rapidly from anesthesia. This was true for all the animals tested. The investigators would like to see if this holds true in humans. Will caffeine accelerate waking from anesthesia? Will it reverse the cognitive deficits associated with anesthesia, after waking? The investigators carried out a modest trial with 8 test subjects. Each volunteer was anesthetized twice. Each volunteer was anesthetized one time and received an infusion of saline (placebo control), without the aid of any other drugs and the other time the volunteer received an infusion of a relatively low dose of caffeine. The order of saline versus caffeine was randomized and the study was done in a double blind manner. We observed that emergence from anesthesia was significantly accelerated by the caffeine infusion. No adverse events were observed.
The purpose of this study is to assess whether methylphenidate affects time of emergence from isoflurane general anesthesia. Time to emergence was defined as the time from termination of isoflurane to extubation. After stopping isoflurane infusion, when the patient breaths spontaneously with adequate tidal volume and respiratory rates, the trachea will be extubated and the time will be recorded.
Children who receive general anesthesia may become agitated (emergence delirium) in the recovery period. This occurs more often after inhalational anesthetics, particularly sevoflurane and desflurane than after propofol. However, agitation after anesthesia in children may be difficult to distinguish from pain; accordingly studies are ideally designed during MRI to obviate the contribution of pain during emergence. Airway complications have been reported after LMA and isoflurane more commonly than with IV propofol and nasal prongs. Whether the airway complications were due to the LMA or the isoflurane was unclear. Therefore, this study was designed to study the incidence of 1. agitation after sevoflurane compared with IV propofol and 2. airway complications after LMA or nasal prongs.
In this study, the investigators will explore Atipamezole \& caffeine's ability to facilitate the emergence from anesthesia. Each subject will visit UChicago 4 times. The first time for informed consent. The second time for a complete physical exam to ensure that the subjects are healthy. Then there are 2 sedation sessions. Subjects get an honorarium for each sedation session.
The purpose of this study is to understand how elderly individuals regain their cognitive skills following general anesthesia. The investigators will compare an age stratified group of volunteers who will be evaluated with a series of cognitive tests and a functional MRI. The participants will then be administered general anesthesia for two hours. The investigators will then assess the participants using state of the art tools to determine when participants return to their cognitive baseline.
To evaluate the feasibility of a pragmatic, large scale, comparative effectiveness, randomized evaluation of patient experience of intravenous propofol versus inhaled volatile anesthesia.
The purpose of this study is to determine the feasibility and acceptability of enhanced preoperative education using a Pediatric Interactive Relational Agent (PIRA), designed for children ages 4 through10 years and their families, compared to the standard preoperative education currently provided. The study will also look at any differences in anxiety between the two educational groups.
Emergence delirium/emergence agitation (ED/EA) is a behavioral phenomenon of unclear etiology consisting of short lived behavioral changes that can be both traumatic to families and pose a safety risk to patients and staff. ED is characterized by a variety of presentations, including crying, excitation and agitation, that occur during the early stage of recovery from general anesthesia, generally in the first 30 minutes. Emergence delirium occurs in children of all ages following an anesthetic with halogenated agents (e.g. sevoflurane/isoflurane) with or without having undergone a surgical procedure (e.g. MRI patients). Presently, the treatment for ED is to revert the patient back to a hypnotic state mainly with sedatives so that they may "reset" themselves postulating that by re-inducing a hypnotic state, the brain has time to resolve this issue. The hypothesis of this study is that during ED, there is failure of organized EEG activity, especially alpha wave activity and that by enhancing alpha activity, the incidence of ED may be reduced without the need for additional pharmaceuticals which may be costly, delay recovery and are not without adverse effects specifically cardiopulmonary depression through the use of blue monochromatic light.
The purpose of this study is to determine whether modafinil use in patients with obstructive sleep apnea will improve postoperative delayed emergence after general anesthesia.
This trial focuses on a Phase II randomized masked clinical trial testing the effectiveness and safety of peri-operative administration of ramelteon, a melatonin agonist in the prevention of postoperative delirium.
The aim of this study is to investigate whether methylphenidate (Ritalin) can actively induce emergence from general anesthesia in patients having a pancreaticoduodenectomy (Whipple procedure), a pancreatectomy, or a prostatectomy.
At present clinicians have no way to reverse anesthesia. Patients wake when their bodies clear the anesthetic. Most people wake quickly, but some do not. All patients have memory and other cognitive problems after waking from anesthesia. In studies on animals, the investigators observed that caffeine caused rats to wake much more rapidly from propofol anesthesia. This was true for all the animals tested. The investigators would like to see if this holds true in humans. Will caffeine accelerate waking from anesthesia? Will it reverse the cognitive deficits associated with anesthesia, after waking? The propose investigators carrying out a modest trial with 8 test subjects. Each volunteer will be anesthetized twice. Each volunteer will be anesthetized one time and receive an infusion of saline (placebo control), without the aid of any other drugs and the other time the volunteer will receive an infusion of a relatively low dose of caffeine. The order of saline versus caffeine will be randomized and the study will be done in a double blind manner. We will determine whether emergence from propofol anesthesia will be significantly accelerated by the caffeine infusion. And whether any adverse events are observed.
The investigators intend to recruit 600 participants to see if alpha power during anesthesia is influenced by analgesic medication and associated with a reduction of delirium following surgery.
Emergence from general anesthesia with a laryngeal mask airway compared with an endotracheal tube has been shown to favorable with respect to limiting emergence phenomena such as coughing, straining, restlessness, and sympathetic stimulation leading to hypertension and tachycardia. Many anesthesiologists would prefer the use of an ETT to an LMA in cases in which higher ventilation pressures may be required, in those patients who are perceived to be high risk for reflux and pulmonary aspiration of gastric contents, as well as during cases that allow the anesthesiologist to have little accessibility the airway. The aim of this study is to investigate an airway management technique that would allow for the benefits of the ETT in terms of a secure airway for the duration of the surgical procedure as well the potential for less emergence phenomena seen when emerging with an LMA.
Emergence delirium which is a phenomenon seen commonly in preschool kids anesthetized with Sevoflurane. Restless recovery from anesthesia may not only cause injury to the child or to the surgical site, but may also lead to the accidental removal of surgical dressings, IV catheters, and drains. is one of the The purpose of the study is to find whether duration of exposure to Sevoflurane has any effect on the incidence of Emergence Delirium.
This project will investigate whether reduction in ambient light and elimination of noise on induction of anesthesia alters anxiety (modified Yale Preoperative Anxiety Scale or mYPAS) or compliance (induction compliance checklist or ICC scoring), alters recovery following emergence using pain scores, analgesic requirements, and emergence delirium (post anesthesia emergence delirium or PAED), or post-discharge behavior at 1, 7 and 14 days (modified post hospitalization behaviour questionnaire or PHBQ) in patients who receive anxiolytic premedication. In addition, the investigators will assess the cumulative level of nose exposure that patients experience during the perioperative period.
This is a prospective, randomized, controlled, non-inferiority study of patients undergoing tonsil surgeries at Boston Children's Hospital Waltham. The overall aim is to evaluate the efficacy of an opioid anesthetic plan (morphine, ketorolac, and acetaminophen versus an opioid sparing anesthetic plan (dexmedetomidine, ketorolac and acetaminophen) for perioperative analgesia and recovery time in patients undergoing tonsillectomies and tonsillotomies at Boston Children's Hospital Waltham. Secondary measures include rescue opioids administered in post-anesthesia care unit (PACU), re-operation secondary to bleeding, emergence delirium, post-operative nausea and vomiting, intraoperative hemodynamics, intraoperative vasopressor administration, and length of procedure.
This is a prospective randomized controlled trial in children 3-9 years of age undergoing myringotomies at Washington University in St. Louis to assess the impact of perioperative personalized music on the incidence of emergence agitation.
This study is being conducted to evaluate the safety and efficacy of weighted blankets to reduce agitation in patients in the post-procedural phase after cardiac catheterization and electrophysiology procedures in the post anesthesia care unit. The study hypothesizes that compared to the traditional and current post-procedural strategy, weighted blanket use will reduce agitation and therefore lessen the need for additional sedation along with a reduction of post-procedure vascular complications.
The investigators are performing this research study to find out if intravenous (IV) methylphenidate (commonly known as Ritalin) can help people recover faster from propofol sedation. The investigators also want to know how IV methylphenidate acts in the brain and whether IV methylphenidate is safe to take with an anesthetic (a drug or agent used to decrease or eliminate the feeling of pain by causing unconsciousness) without causing too many side effects. The brain's electrical activity will be studied and recorded using a machine called an electroencephalogram (EEG).
The ongoing opioid epidemic is a public health crisis, and surgical patients are particularly vulnerable to opioid-dependency and related risks. Emerging data suggest that caffeine may reduce pain after surgery. Thus, the purpose of this study is to test whether caffeine reduces pain and opioid requirements after surgery. The investigators will also test whether caffeine improves mood and brain function (e.g., learning, memory) after surgery.
Myringotomy tube placement is one of the most commonly performed operations in children. Emergence delirium after such procedures is common. During emergence delirium children can become both a danger to themselves and others around them, including family members and hospital staff. The primary objective of this study is to determine if acupuncture, when used in combination with standard anesthetic management, decreases the incidence of emergence delirium in pediatric patients following myringotomy tube placement. Patients with and without premedication of midazolam will be included. A secondary objective of this study is to determine our institution's actual incidence of emergence delirium for this operation using a validated scale, the Pediatric Anesthesia Emergence Delirium (PAED) scale. We will also compare rates of emergence delirium in patients that received a premedication of midazolam versus (V) those that did not (NV). This is a randomized double-blinded trial. We will enroll 100 children aged 1-6 years old. Premedication with midazolam will be decided by the anesthesiologist. If needed, the patient will receive a standard does of oral midazolam plus acetaminophen (V). If the patient does not require premedication with midazolam, oral acetaminophen will be given alone (NV). Patients will then be randomized to receive either acupuncture with standard general anesthesia care (A) or to receive standard anesthetic care alone (S). Patients, their family members and recovery registered nurses (RNs) will not know if acupuncture was performed. Intraoperative anesthetic techniques will be standardized and include inhaled inductions with nitrous oxide and sevoflurane. Anesthesia maintenance will be inhaled sevoflurane and the usual pain medication ketorolac will be given intramuscularly prior to emergence. Acupuncture needles will be placed after anesthesia induction and removed prior to leaving the operating room. A total of 4 needles will be placed, one in each wrist at the Heart 7 (HT7) point and one in each ear at the Shen Men point. The needles will be inserted bilaterally to a depth of 1.8 mm. In the PACU, a blinded study observer will evaluate the patient at four time points using the PAED scale: time of awakening and 5, 10 \& 15 minutes after awakening. Follow up phone calls will be made one day and one week after surgery. Families will be asked about behavior after discharge, sleep and bed-wetting.
Emergence agitation (EA) occurs in up to 67% of pediatric patients after anesthesia for bilateral myringotomy tubes (BMT, "ear tubes"). The goal of this study is to find out whether acetaminophen given well before surgery can decrease pain and therefore, decrease emergence agitation better than acetaminophen given shortly before or during surgery. EA can be dangerous for the patient because it may be hard to monitor their vital signs during an important phase of recovery, they may injure themselves, may require the presence of extra staff, and it can be very distressing to the parents. Causes of EA are not well understood, but it can be worsened by pain. 70% of patients undergoing BMT experience pain that needs treatment. Intranasal fentanyl, a strong analgesic, has been shown to decrease EA, but often ends up in dose-dependent nausea and vomiting. In previous studies and in common practice, acetaminophen is given either 30 minutes before induction of anesthesia or immediately after induction. The peak analgesic effect of acetaminophen is 60-120 minutes. Since the procedure is generally completed in 5-10 minutes, the therapeutic effect of acetaminophen may not be present upon emergence from anesthesia. The purpose of this study is to find out if acetaminophen given 60-120 minutes prior to emergence can decrease EA in patients undergoing BMT. Patients would be randomized to one of three groups: Control will receive acetaminophen rectally while under anesthesia (standard practice), Group 1 will receive acetaminophen 10 mg/kg at 60-120 minutes prior to surgery, Group 2 will receive acetaminophen 20 mg/kg at 60-120 minutes prior to surgery. All groups would also receive a dose of intranasal fentanyl during the surgery, which is standard practice. Patients would be observed in the recovery room at various time points for evidence of EA and pain.
The investigators are inviting your child to participate in this research study because your child is having myringotomy (putting a tiny incision in the eardrum with or without tube insertion) under general anesthesia. The purpose of this study is to determine whether a single injection of Dexmedetomidine (study medication) decreases the frequency of awaking from anesthesia frightened or agitated in children having myringotomy surgery as compared to those children who receive placebo (sterile saltwater).
The purpose of this study is to determine whether depth of anesthesia has an effect on emergence agitation (EA) in children age 2 - 8 years old. EA is a common problem in pediatric patients who receive general anesthesia with inhaled anesthetics, and the effect of depth of anesthesia on EA has not been studied. The study will randomize 40 children undergoing ophthalmologic surgery under general anesthesia to either light anesthesia (BIS 55-60) or deep anesthesia (BIS 40-45). EA will be measured by the peak Pediatric Assessment of Emergence Delirium (PAED) score in the recovery room, which rates agitation behaviors on a scale of 0 - 20. The hypothesis is that light anesthesia is associated with more EA.
Emergence delirium (ED) from general anesthesia posts risk and harm to pediatric population undergo general anesthesia. The purpose of the study is to compare the use of dexmedetomidine versus placebo in reducing the incidence and severity of ED in a pediatric neurosurgical population.
The aim of this study is to compare the impact of common (standard of care) language vs positive language used by clinicians during inhalational induction of anesthesia on anxiety and negative behaviors in children. This is a prospective randomized parallel group trial. Patients will be randomized 1:1 to the common/standard language group or the positive language group.
Investigation of pupillometry as guide for extubation readiness in anesthetized children.