Comparison of Esophageal Manometry and CT Scan Measurements

Withdrawn before enrolling

Conditions studied: Morbid Obesity, Respiratory Failure

In brief

The goal of this study is to determine the relationship between esophageal pressure (Pes) and superimposed pressure (SP) in subjects with morbid obesity.

Key facts

Study ID

NCT04213911

Run by

Massachusetts General Hospital

People needed

0

Starts

2023-03-01

Expected to finish

2023-12-01

Last updated by the study team

2025-12-02

Who can join

Age: 18 and older, up to 99. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Patients who are scheduled to take a chest CT scan for the clinical purpose at MGH Radiology Department
• 6 adult subjects with BMI more than 40kg/m2
• 6 adult subjects with BMI less than 30kg/m2
• More than 18 years old

You may not qualify if…

• Presence of pneumothorax
• History of spontaneous pneumothorax
• Severe coagulopathy (INR ≥ 4)
• Severe thrombocytopenia (Platelets count ≤ 5,000/mm3)
• Usage of any devices with electric current generation such as pacemakers or internal cardiac defibrillator
• Recent esophageal trauma or surgery
• Other esophageal diseases, such as esophageal cancer, leak, varices, and hernia
• Presence of hypoxemia, short of breath and dysphagia.
• Presence or suspicion of pneumonia or lung fibrosis.

Where it is running

• Massachussets General Hospital — Boston, Massachusetts, United States

Full record on ClinicalTrials.gov

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