PMID- 34871554 OWN - NLM STAT- MEDLINE DCOM- 20220425 LR - 20220715 IS - 1097-6779 (Electronic) IS - 0016-5107 (Linking) VI - 95 IP - 5 DP - 2022 May TI - Impact of trimodality sampling on detection of malignant biliary strictures compared with patients with primary sclerosing cholangitis. PG - 884-892 LID - S0016-5107(21)01848-4 [pii] LID - 10.1016/j.gie.2021.11.029 [doi] AB - BACKGROUND AND AIMS: Malignant biliary strictures can be difficult to diagnose, with up to 20% considered indeterminate after initial tissue sampling. This study aimed to determine the performance characteristics of transpapillary biopsy sampling (TPB) and fluorescence in situ hybridization (FISH) in isolation or in combination with standard brush cytology (BC) in patients who received trimodality sampling for biliary strictures. METHODS: This single-center retrospective cohort study included patients with biliary strictures undergoing ERCP with trimodality sampling between September 2014 and April 2019. Performance characteristics for each diagnostic test alone and in combination were calculated. RESULTS: Two hundred four patients underwent trimodality biliary sampling, including 104 (51.0%) with malignancy. The diagnostic sensitivity for malignancy with BC (17.3%) significantly improved with dual modality (BC+FISH, 58.7%; BC+TPB, 40.4%) or trimodality sampling (68.3%; P < .001 for all comparisons). Trimodality sampling improved diagnostic sensitivity for malignancy compared with BC+FISH (P = .002) and BC+TPB (P < .001). There was no statistically significant difference in the sensitivity of trimodality sampling in detecting cholangiocarcinoma (79.7%) compared with pancreatic cancer (62.5%; P = .1). Among 57 patients with primary sclerosing cholangitis (PSC), the sensitivity of detecting biliary malignancy (n = 20) was 20% for BC and significantly improved with the addition of FISH (80%; P < .001) but not with TPB (35.0%; P = .25). Trimodality sampling did not further improve diagnostic sensitivity (85%) over BC+FISH (80%) for malignancy in the setting of PSC (P = 1). CONCLUSIONS: Trimodality sampling improves the diagnostic sensitivity for the detection of malignant biliary strictures with no significant difference in sensitivity for cholangiocarcinoma compared with pancreatic cancer. However, in patients with PSC, trimodality sampling was not superior to BC+FISH. CI - Copyright (c) 2022 American Society for Gastrointestinal Endoscopy. Published by Elsevier Inc. All rights reserved. FAU - Baroud, Serge AU - Baroud S AD - Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA. FAU - Sahakian, Alexander J AU - Sahakian AJ AD - Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA. FAU - Sawas, Tarek AU - Sawas T AD - Division of Digestive and Liver Diseases, University of Texas Southwestern, Dallas, Texas, USA. FAU - Storm, Andrew C AU - Storm AC AD - Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA. FAU - Martin, John A AU - Martin JA AD - Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA. FAU - Abu Dayyeh, Barham K AU - Abu Dayyeh BK AD - Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA. FAU - Topazian, Mark D AU - Topazian MD AD - Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA. FAU - Levy, Michael J AU - Levy MJ AD - Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA. FAU - Roberts, Lewis R AU - Roberts LR AD - Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA. FAU - Gores, Gregory J AU - Gores GJ AD - Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA. FAU - Petersen, Bret T AU - Petersen BT AD - Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA. FAU - Chandrasekhara, Vinay AU - Chandrasekhara V AD - Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA. LA - eng PT - Journal Article DEP - 20211203 PL - United States TA - Gastrointest Endosc JT - Gastrointestinal endoscopy JID - 0010505 SB - IM CIN - Gastrointest Endosc. 2022 May;95(5):893-895. PMID: 35282880 CIN - Gastrointest Endosc. 2022 Jun;95(6):1284-1285. PMID: 35589212 MH - *Bile Duct Neoplasms/complications/diagnosis/pathology MH - Bile Ducts, Intrahepatic/pathology MH - *Cholangiocarcinoma/complications/diagnosis/pathology MH - Cholangiopancreatography, Endoscopic Retrograde MH - *Cholangitis, Sclerosing/complications/diagnosis/pathology MH - *Cholestasis/pathology MH - Constriction, Pathologic/diagnosis/etiology/pathology MH - Humans MH - In Situ Hybridization, Fluorescence MH - *Pancreatic Neoplasms/complications/diagnosis MH - Retrospective Studies MH - Sensitivity and Specificity EDAT- 2021/12/07 06:00 MHDA- 2022/04/26 06:00 CRDT- 2021/12/06 20:11 PHST- 2021/08/06 00:00 [received] PHST- 2021/11/12 00:00 [accepted] PHST- 2021/12/07 06:00 [pubmed] PHST- 2022/04/26 06:00 [medline] PHST- 2021/12/06 20:11 [entrez] AID - S0016-5107(21)01848-4 [pii] AID - 10.1016/j.gie.2021.11.029 [doi] PST - ppublish SO - Gastrointest Endosc. 2022 May;95(5):884-892. doi: 10.1016/j.gie.2021.11.029. Epub 2021 Dec 3.