16 Clinical Trials for Various Conditions
Studies have shown that even following the fasting guideline, patients on GLP-1 still have residual gastric content which increases their risk of aspiration during anesthesia. We aim to investigate the prevalence of full stomachs following different fasting times.
The purpose of this study is to determine if prolonged fasting from solids and transitioning to a CLD for 24 hours is protective to decrease RGC in patients on GLP-1 RAs presenting for upper endoscopy, to determine if prolonged fasting is associated with increased thirst, hunger and anxiety, To determine if signs and symptoms of nausea, vomiting, retching, abdominal bloating, and abdominal pain are present on the day of surgery, to see if there is any variability between preoperative gastric ultrasound assessment and volume of gastric contents visualized on upper endoscopy, to determine time of gastric emptying by serial Gastric ultrasonography (GUS) scans every 2 hours in subjects who presented with an initial at-risk scan, to determine the choice of anesthesia used based on preoperative GUS results, to determine if there were any adverse events recorded in this study group, to determine if duration of GLP-1 RA therapy has an association with residual gastric content (RGC). and to determine if dosing of GLP-1 RA has an association with RGC.
Given the increased prescription of GLP-1 agonists for both diabetes and obesity management and the implications of the proposed delayed gastric emptying in the setting of an anesthetic, it is critical to determine if patients taking GLP-1 agonists have an increased rate of delayed gastric emptying. The purpose of this prospective gastric ultrasound evaluation of pre-operative patients is to determine the incidence of a full stomach despite a standard pre-operative fasting period.
Emerging studies have evaluated POCUS (Point of Care Ultrasound) for assessing of gastric content prior to anesthesia to reduce the risk of aspiration and demonstrated that POCUS can accurately identify presence of gastric food or fluid. Despite accumulating studies evaluating POCUS as a diagnostic modality to evaluate for gastric food content prior to anesthesia, there is no study to date that has evaluated the role of POCUS prior to endoscopy among patients with upper GI bleeding. Therefore, this study is to evaluate the diagnostic accuracy of POCUS for retained gastric content prior to endoscopy among patient hospitalized/admitted with upper GI bleeding. This study would take place at Loma Linda University Medical Center. Subjects will be any one who has upper GI bleed required EGD and age of greater than 18 years old. The study will plan for 1 year or reach 50 patients (whichever one comes first). In addition, subjects will be recruited from ED, ICU, Medicine ward by the PI, SubPI, and Collaborators. Subject will received ultrasound up to 6 hours prior the start of endoscopy. The location of Ultrasound would either take place at GI lab prior to scope or at the ward prior to transportation to GI lab or at ICU prior to endoscopy. The ultrasound would focus upper abdomen area and look for antrum. the result will be immediately read before endoscopy and fill out on the sheet before the endoscopy. Patient then proceed with endoscopy. At the end of the scope, the researcher will ask the endoscopist questions regarding how well they could see each part of the stomach in order to complete the study. Both results are compared between US and Endoscopy. Endoscopist is blinded in this study.
Perioperative aspiration of gastric contents is a rare but serious adverse event. The risk of aspiration can be estimated by perioperative evaluation of stomach contents with ultrasound using a validated technique and scoring system. A lack of knowledge or familiarity is frequently cited by anesthesia providers as a rationale for not performing perioperative ultrasound assessments. The purpose of this study is to determine whether novice ultrasonography users (medical students, undergraduates, or inexperienced anesthesiologists) can be effectively taught a technique to evaluate stomach contents as compared to experts in ultrasonography.
According to normal physiology, the longer fasting period allows food particles to pass stomach through small intestines to minimize intragastric content. The practice guidelines recommend 2-hour fasting period for clear fluid (including water, pulp-free juice and tea or coffee without milk), 4- hour fasting period for breast milk and 6-hour fasting period for non-human milk and solid food to reduce risks of pulmonary aspiration. As a result of longer fasting period, patients tend to experience preoperative dehydrated states and intraoperative hypotension. Patients' demographic data will be obtained from charts. Parents will be asked for type, volume of fluid/food intake and NPO time. This study will be done at BCH's Gastroenterology Procedure Unit (GPU) theaters to measure actual intragastric volume and pH at the beginning esopagogastroduodenoscopy procedures. We hope to demonstrate the relationship between NPO time and actual intragastric volume which provide sufficient data of NPO time to ensure patient's safety.
The primary purpose of this study is to determine nutrition outcomes and risks to gastrointestinal integrity and function of aspirating for routine gastric contents prior to each feeding in very low birth weight premature infants.
This study will enroll patients ages 18 and over who are in one of the following groups 1) taking a GLP-1 receptor agonist medication 2) not taking a GLP-1 receptor agonist (control group), are undergoing EGS and have appropriately fasted. Study data will be collected in the form of qualitatively observing whether the stomach is empty as expected, or contains solid or clinically relevant liquid contents.
Examining the effectiveness of cricoid pressure using ultrasound imaging. Pulmonary aspiration of gastric contents during tracheal intubation, although rare in pediatrics, is a potentially catastrophic complication of anesthesia. Cricoid pressure is applied during rapid sequence induction to occlude the esophagus and prevent aspiration of gastric contents. Accumulating evidence in adults suggests that cricoid pressure often is not effective, either because the esophagus normally lies lateral to the cricoid cartilage, or because downward pressure on the cricoid cartilage laterally displaces (rather than compresses) the esophagus. The investigator proposes to examine the effectiveness of cricoid pressure in children in the peri-operative setting using non-invasive ultrasound imaging. Using this approach, the investigator will investigate the normal anatomical relationship of the esophagus and the cricoid cartilage, as well as how cricoid pressures influences this relationship. Further, the investigator will examine whether alternatives to downward cricoid pressure, such as laterally directed pressure, are more effective at occluding the esophagus.
The purpose of this research study is to look at the effectiveness of current anesthesia guidelines regarding food and drink prior to surgery in patients who are likely to have food and drink remain in their stomach longer than might ordinarily be expected.
This study will enroll patients ages 18 and over who have a diagnosis of diabetes, are undergoing an elective surgery under general anesthesia and 1) are taking a GLP-1 receptor agonist medication, or 2) not taking a GLP-1 receptor agonist medication. The patients will have a gastric ultrasound prior to surgery to measure any retained gastric contents. The primary goal is to assess the effect of subcutaneous injectable GLP-1 agonists on preoperative gastric volume in fasted, diabetic surgical patients.
The goal of this pilot prospective cohort study is to examine the reproducibility of gastric volume and emptying as measured by gastric ultrasound and its correlation to a gold-standard test for gastric emptying in the perioperative period in pediatric patients. The main questions it aims to answer are: * What is the reliability (inter-rater variability between expert and novice assessors, and intra-rater variability) of a) the gastric antral cross-sectional area (CSA) and b) gastric volume using the Perlas US qualitative grading assessment, measured by using an ultrasound device in pediatric patients undergoing general anesthesia for elective surgery? * What is the correlation between ultrasound assessment of gastric emptying by the antral-CSA and gastric emptying determined by the acetaminophen absorption test (AAT), the gold standard? The study will include two cohorts. Cohort assignment will be based on age and anesthesia induction plan. Subjects \>7yrs of age and expected to get an IV induction will be assigned to Cohort #1. Subjects \<7yrs of age and not expected to get an IV induction will be assigned to Cohort #2. * Cohort 1 will include abdominal ultrasound for gastric assessment AND the acetaminophen absorption test which includes administering enteral acetaminophen (tylenol) with 6 oz of water and drawing of blood samples through a peripheral intravenous line. * Cohort 2 will include subjects for whom a peripheral intravenous line placement is not part of routine pre-operative care. Procedures for Cohort 2 will include abdominal ultrasound only in the pre-op area (no tylenol). This cohort is included to examine the reliability of measurements across age groups.
According to the American Society of Anesthesiologists (ASA) fasting guideline for patients undergoing elective surgery, the 2-hour fasting period is suggested for clear oral fluid (including water, pulp-free juice and tea or coffee without milk). This guideline does not give any suggestions for proper volume of clear oral fluid intake. This study is a prospective randomized control trials in children aged 13 through 17 years who are scheduled for an elective upper GI endoscopy procedure in the Gastroenteral Procedure Unit (GPU) at Boston Children's Hospital. The participants will be randomly assigned into one of four groups: Group 1 will consume 3 ml/kg of clear fluid by mouth at 2-hour period before surgical scheduled time, Group 2 will consume 5 ml/kg, Group 3 will consume 7 ml/kg, and Group 4 will consume 10 ml/kg. The investigators plan to recruit 72 patients in each group and 288 patients for the whole study. Research team will collect patient's demographic data, vital signs, information about their EGD procedure. Then actual volume of the stomach content and acidity will be measured from the content that is suctioned from patient's stomach during upper GI endoscopy procedure. The investigators believe that the information from this study will help establish a comprehensive NPO guideline.
The aims of this study are to create a prospective data base to evaluate the long term outcomes of medical and surgical treatment of gastroesophageal reflux disease (GERD); to measure standard outcomes as well as patient derived outcomes such as general and disease specific quality of life (QOL) issues and patient satisfaction; to refine the parameters that may identify patients who will benefit from surgery for GERD; and to identify possible determinants of failure of both medical and surgical treatments of reflux.
Omitting evaluation of gastric residual contents prior to feeding very premature infants will increase the feeding intake at 2 weeks, and total caloric intake and growth by 3 weeks, as well as decrease the time required for parenteral nutrition.
The purpose of this study is to determine whether there is a difference in the human in vivo response to 13C-Spirulina meals manufactured using 13C-Spirulina containing different levels of protein (as measured by %nitrogen).