Comparison of Laparoscopic Ultrasound to Transabdominal Ultrasound for the Detection of Gallbladder Pathology in the Bariatric Surgical Population.
Overview
- Phase
- Not Applicable
- Intervention
- Not specified
- Conditions
- Cholelithiasis
- Sponsor
- Gundersen Lutheran Medical Foundation
- Enrollment
- 253
- Locations
- 1
- Primary Endpoint
- Cholelithiasis on Transabdominal Ultrasound Versus Laparoscopic Ultrasound.
- Status
- Completed
- Last Updated
- 13 years ago
Overview
Brief Summary
The objective of this study is to prospectively compare laparoscopic ultrasound to transabdominal ultrasound for the detection of gallbladder pathology in obese patients presenting for laparoscopic gastric bypass. We hypothesize that laparoscopic ultrasound will be more sensitive and specific for cholelithiasis than transabdominal ultrasound in morbidly obese patients.
Detailed Description
Asymptomatic cholelithiasis is a prevalent condition in obese patients presenting for bariatric surgery. Transabdominal ultrasound (TAU) remains the gold standard for detection of cholelithiasis. The sensitivity and specificity of transabdominal ultrasound for cholelithiasis reported in literature is between 88-97% and 97-99%, respectively. The ability to detect cholelithiasis with TAU in the obese population may be inhibited due to the presence of increased subcutaneous and visceral fat. Laparoscopic ultrasound (LU) has the potential to overcome these technical challenges. In an era of minimally invasive bariatric surgery, it has been suggested that routine preoperative ultrasound TAU be performed for the detection of cholelithiasis since intraoperative palpation is not feasible. We hypothesize that laparoscopic ultrasound will be more sensitive and specific for cholelithiasis than transabdominal ultrasound in morbidly obese patients.
Investigators
Kara Kallies
Advanced Research Associate, under direction of Shanu N. Kothari, MD, (PI)
Gundersen Lutheran Medical Foundation
Eligibility Criteria
Inclusion Criteria
- •Morbidly obese patients undergoing elective laparoscopic roux-en-Y gastric bypass
Exclusion Criteria
- •Prior history of gallbladder surgery
Outcomes
Primary Outcomes
Cholelithiasis on Transabdominal Ultrasound Versus Laparoscopic Ultrasound.
Time Frame: transabdominal measurements within 30 days prior to surgery; laparoscopic ultrasound measurements are completed intraoperatively
Number of patients with cholelithiasis.
Polyps on Transabdominal and Laparoscopic Ultrasound
Time Frame: 6 years
Number of patients with polyps.
Secondary Outcomes
- Common Bile Duct (CBD) Diameter Measured by Transabdominal Ultrasound Versus Laparoscopic Ultrasound.(transabdominal measurements will be done within 30 days prior to surgery; laparoscopic ultrasound measurements are completed intraoperatively)