Liver, Pancreas and Biliary TractOesophageal capsule endoscopy versus oesophago-gastroduodenoscopy for the diagnosis of recurrent varices: A prospective multicentre study

BackgroundOesophago-gastroduodenoscopy is the standard method for the diagnosis of recurrent oesophago-gastric varices after endoscopic treatment and eradication. The aim of this study was to evaluate the PillCam®Eso capsule endoscopy in this setting.MethodsProspective, multicentre study in which patients with history of oesophageal varices treated by band ligation underwent PillCam®Eso capsule and oesophago-gastroduodenoscopy. Capsule recordings were blindly read by two endoscopists. Indication for a new prophylactic treatment and patient satisfaction were determined for both procedures.Results80 patients (80% males, mean age: 57 ± 12 years) were included, after a median delay of 16 months from last endoscopic treatment. Recurrent oesophageal varices requiring a new prophylactic treatment were detected in 26 patients (32.5%). The mean oesophageal transit time of the capsule was 153 s (range 2-930 s). Capsule sensitivity, specificity, negative and positive predictive values for indication of new prophylactic treatments were 65%, 83%, 83%, and 65%, respectively. Capsule adequately classified 77.5% of the patients for prophylaxis indication. Inter-observer concordance for capsule readings was 88% for the prophylaxis indication.ConclusionThis study demonstrates that accuracy of PillCam®Eso capsule for the diagnosis of recurrent oesophageal varices after endoscopic eradication is suboptimal. PillCam®Eso capsule might therefore be proposed in patients unable or unwilling to undergo oesophago-gastroduodenoscopy.