Ultrasound-Guided Breathing Pressure During Mask Ventilation in Obese Patients
Tests ultrasound-guided breathing pressure during mask ventilation in adults with severe obesity.
Plain-language title generated from the registry record
Registry title: Determination of the Optimal Inspiratory Pressure to Decrease Incidence of Gastric Insufflation With Adequate Ventilation During Facemask Ventilation in Morbidly Obese Patients
Key facts
- Where
- Banhā, EgyptSee the site
Could this be for you?
Answer for yourself. This is not a decision: only the study team can say whether you can take part.
- Are you between 18 and 65 years old?
Source: NCT07480031, who can take part
Where in Egypt
- Benha University HospitalsBanhā, EgyptNo longer taking part
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Trial details
- Who runs it
- Benha University
- Trial code
- NCT07480031
- Record updated
- 18 March 2026
- Original description
The goal of this randomized clinical trial is to optimize the inspiratory pressure during facemask ventilation (FMV) in morbidly obese patients (BMI ≥40 kg/m²), to ensure adequate ventilation while minimizing the risk of gastric insufflation by real-time ultrasound guidanceRead full original descriptionShow less
Ultrasound-Guided Optimization of Inspiratory Pressure During Facemask Ventilation in Morbidly Obese Patients to Prevent Gastric Insufflation: A Randomized Clinical Trial
The goal of this randomized clinical trial is to optimize the inspiratory pressure during facemask ventilation (FMV) in morbidly obese patients (BMI ≥40 kg/m²), to ensure adequate ventilation while minimizing the risk of gastric insufflation by real-time ultrasound guidance
Inclusion: Adult patients (18-65 years old) scheduled for elective surgery under general anesthesia requiring facemask ventilation; Morbid obesity (BMI ≥40 kg/m²); American Society of Anesthesiologists (ASA) physical status II-III; Normal upper gastrointestinal anatomy (no history of gastric surgery, esophageal strictures, or hiatus hernia); Fasted for at least 6 hours for solids and 2 hours for fluids (standard preoperative fasting guidelines).
Exclusion: • Emergency surgery (due to inability to ensure proper fasting or preoperative assessment); Known or suspected difficult airway (Mallampati class IV, limited neck mobility, or history of difficult intubation); Gastroesophageal reflux disease (GERD) or high aspiration risk (e.g., pregnancy, symptomatic hiatal hernia); Contraindications to facemask ventilation (facial trauma, beard/mask seal interference); Severe cardiopulmonary disease (e.g., severe COPD, pulmonary hypertension, or unstable angina); Neuromuscular disorders affecting respiratory function; Refusal to participate or inability to provide informed consent.