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Choledocholithiasis is defined as the presence of calculus in the biliary tract, and is one of the main complications of cholelithiasis. Its prevalence among the Mexican population is 14%.
To determine the validity of predictors of choledocholithiasis in patients attending the Hospital Agustin O’Horan from January 2019 to December 2020.
This was an observational, analytical, and retrospective study. It included patients with a diagnosis of choledocholithiasis, and it evaluated the sensitivity, specificity, as well as positive and negative predictive values for risk criteria of the American Society for Gastrointestinal Endoscopy (ASGE)
Ninety-six medical histories were analyzed. Ninety were from women and six from males (94% and 6% respectively), and the average age was 40 years. The registry shows an increase of serum ALP, AST, and ALT in 98% of the reports, and elevated levels of bilirubin in 19% by 1.3-4 mg/dl, and 76% by >4 mg/dl of them. Moreover, the records showed pancreatitis and cholangitis (8% each one). The ultrasound reports indicates that 96% of the patients had a choledochal cyst higher than 5 mm, while 54% had a choledochal litho. Sensitivity and specificity of ASGE criteria for the diagnosis of choledocholithiasis was 96.6% and 45.5% respectively, and a Positive Predictive Value of 16% and a Negative Predictive Value of 99%.
It is considered that the diagnostic accuracy test of the ASGE criteria for the diagnosis of choledocholithiasis is high.