Is Pre-operative Ultrasound Scoring Helpful in Predicting Conversion to Open in Laparoscopic Surgery?

Abstract

Objective: To determine the positive predictive value of preoperative ultrasound score of ≥3 in predicting conversion from laparoscopic to open cholecystectomy.
Methods: Consenting adult patients of both genders who had been evaluated by ultrasound performed by a consultant radiologist 48 hours before the surgery and were undergoing laparoscopic cholecystectomy were included in the study. Patients with American Society of Anesthesia score (ASA) III-IV were excluded from the study.180 patients were included in the study.
Results: There were 66 males (36.7%) and 114 females (63.3%). The mean age was 47.33± years and the range was from 19 to 77. Conversion to an open procedure was required in only six cases. There was no association between gender, age group, diabetes, obesity No association between preop ultrasound score and conversion was found (Positive predictive value 3.3%).
Conclusions: Preoperative ultrasound scoring doesn't predict conversion from laparoscopic to open cholecystectomy.