COMPARING THE NASSAR AND PARKLAND SCALES IN LAPAROSCOPIC CHOLECYSTECTOMIES: AN OBSERVATIONAL STUDY FOR PREDICTING SURGICAL DIFFICULTY francisco.macias@comunidad.unam.mx

 

COMPARING THE NASSAR AND PARKLAND SCALES IN LAPAROSCOPIC CHOLECYSTECTOMIES: AN OBSERVATIONAL STUDY FOR PREDICTING SURGICAL DIFFICULTY

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Mexico

Oral or Poster

Cholecystectomy is the definitive treatment for symptomatic gallstone disease. Its primary aim is to relieve biliary pain and reduce the risk of complications. The Parkland Classification Scale assesses the severity of cholecystitis based on intraoperative findings and initial visual characteristics. In contrast, the Nassar Scale incorporates additional criteria after initial visualization, enabling evaluation of intervisceral adhesions and the anatomy of the hepatocystic triangle.

An observational, analytical, retrospective, cross-sectional study was conducted to evaluate the time to clip cystic structures and the total operative time. Emergency laparoscopic cholecystectomy videos performed at Hospital General de Tláhuac between January and December 2024 were analyzed. The Parkland scale was applied during initial visualization, while the Nassar scale was used after dissection of the hepatocystic triangle.

Thirty surgical videos were classified using both the Nassar and Parkland scales. A strong direct association was observed between the two classifications. Additionally, the Nassar scale demonstrated a statistically significant correlation with both clipping time and total operative time.

The Nassar scale showed a stronger statistical correlation with surgical difficulty compared to the Parkland scale, likely due to its integration of anatomical and technical criteria beyond initial visualization.