691 Gallbladder Polyp Surveillance Audit

Abstract

Abstract Background Gallbladder polyps pose a clinical dilemma in surveillance owing to being a very common US findings yet gallbladder malignancy being a infrequent diagnosis. The joint guidelines of ESGAR, EASES, EFISDS and ESGE 6, 12 and 24 monthly follow up scans for 6-9 mm sized polyps or <5 mm polyps with risk factors for malignancy. Cholecystectomy is recommended in polyps >10mm. UK hospitals follow local guidelines, which for our trust is 12 and 24 monthly follow up scans. We investigated the surveillance and management of Gallbladder polyps and audited the practice in our DGH. Method We collected and analysed retrospective data of US-diagnosed GB polyp cases from May2010 to September2022. US-diagnosed GB Polyp patients above the age of 18 were included. We excluded cases of CT or MRI diagnosed and/or followed up cases. Results A total of 212 patietns were selected. Polyp sizewise, 118(52%) were<5mm, 12(5.3%) were>9mm. 82(36.6%) 6-9 mm polyps, 62(75%) were followed up. Mean time and median time to obtain a second scan was 472days 556 days. Of these, 14 had an increase in size of polyps, whilst 3 with increase>2mm. 17 patients with GB polyp had Cholecystectomy, 1(one) had a diagnosis of malignancy. Conclusions We demonstrated that the correct modality of scan was chosen for follow up. However, the timing of the follow up was not within the recommended guidelines. Further teaching and evaluation of practice is recommended. A case can be made into a unified UK guideline.