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NCT07335172
Due to the physiologically delayed gastric emptying in pregnant women, the potential risk of aspiration before cesarean delivery constitutes an important source of perioperative complications, and when it occurs, it is associated with increased maternal morbidity and/or mortality. Systematic reviews and meta-analyses have demonstrated that, compared with non-pregnant women, gastric emptying is delayed particularly during the first trimester of pregnancy, and that gastric emptying does not occur in cases who have consumed solid food within the last 8 hours and in whom labor has begun. This study aims to evaluate preoperative gastric volumes by ultrasonography in ASA II pregnant women (according to the American Society of Anesthesiologists classification, healthy parturients without complications) scheduled to undergo elective cesarean delivery under general or spinal anesthesia, based on different fasting durations for solid and liquid intake, with the type of liquid. Although previous research in pregnant populations has predominantly focused on the importance of gastric ultrasonography in the presence of gestational diabetes mellitus, this thesis study aims to generate data from the general population. The findings are expected to enable individualized preventive measures to reduce aspiration-related complications during cesarean deliveries performed under general or spinal anesthesia, thereby contributing to patient safety.
NCT07141498
This single-center, prospective, randomized controlled study aims to compare the placement accuracy of iGel and Air-Q sp3G supraglottic airway (SGA) devices in pediatric patients aged 1-8 years undergoing elective surgery under general anesthesia. Placement will be confirmed via fiberoptic bronchoscopy, and gastric insufflation will be assessed using ultrasound measurement of gastric antral cross-sectional area pre- and post-device placement. Secondary outcomes include postoperative complications such as sore throat, hoarseness and dysphagia.
NCT04738006
Preoperative gastric sonography may provide a validated, reliable, fast, and cost-efficient approach to assess aspiration risks in both elective and emergency patients. Practiced sonographers are able to perform point-of-care gastric sonography in a few minutes, thus severe delay in daily clinical practice should not be expected. Nevertheless, how this highly sensitive and specific tool should be best established in daily clinical practice is still unclear. There are no preexisting structured and validated trainings for this specific point-of-care ultrasound application. To address these issues, all patients with increased aspiration risk at the Institute of Anaesthesiology in Winterthur will be evaluated for participation during a one year recruiting period. Participants will receive a preoperative gastric ultrasound by a trained professional. The aim of this investigation is to validate our structural training and proof the importance and effectiveness of this diagnostic tool to lay ground for improvement of anesthesiologic management and presumably patient safety in patients with an increased risk of a pulmonary aspiration.
NCT03205774
The aim of this prospective study was to assess the effect of patient positioning on the ultrasound assessment of gastric contents.