[Laparoscopic ultrasound in biliary diseases]

Area of Science:

• Gastroenterology and Hepatobiliary Surgery
• Minimally Invasive Surgical Techniques
• Diagnostic Imaging

Background:

• Intraoperative exploration of abdominal viscera is crucial for accurate surgical decision-making.
• Choledocholithiasis (stones in the common bile duct) requires precise diagnosis during surgery.
• Traditional methods for diagnosing common bile duct stones have limitations.

Purpose of the Study:

• To evaluate the efficacy and limitations of laparoscopic ultrasound as an intraoperative diagnostic tool.
• To compare the diagnostic performance of laparoscopic ultrasound with abdominal ultrasound and laparoscopic cholangiography.
• To assess the role of laparoscopic ultrasound in the diagnosis of choledocholithiasis.

Main Methods:

• A prospective study involving 65 patients with gallbladder stones undergoing surgery.
• Comparison of diagnostic accuracy using abdominal ultrasound, laparoscopic ultrasound, and laparoscopic cholangiography.
• Measurement of common bile duct (CBD) size and detection of stones or sludge within the CBD.

Main Results:

• Laparoscopic ultrasound demonstrated high utility for the intraoperative diagnosis of choledocholithiasis.
• Compared to laparoscopic cholangiography, laparoscopic ultrasound showed equivalent specificity and positive predictive value.
• The sensitivity of laparoscopic ultrasound for detecting common bile duct stones was found to be 0.93.

Conclusions:

• Laparoscopic ultrasound is a reliable and effective tool for intraoperative diagnosis of common bile duct stones.
• It offers comparable diagnostic accuracy to laparoscopic cholangiography, with the advantage of being less invasive.
• This technique enhances surgical planning and patient management in cases of suspected choledocholithiasis.