Risk factors for XXXX after endoscopic submucosal dissection of @entity1819 .

@entity1 @entity55 @entity1819 @entity221 @entity356
UNASSIGNED: Background and study aims: Endoscopic submucosal dissection (ESD) is widely used in the resection of @entity356 en bloc, however, complications such as @entity221 frequently occur following the procedure. The study aim was to elucidate the incidence, clinical characteristics, and risk factors of post-ESD @entity221 . @entity1 and methods: We conducted a retrospective cohort study of 471 consecutive @entity1 with 485 @entity1819 resected by ESD between December 2005 and 2010. Pyrexia was defined as body temperature above 37.5  C, regardless of its duration. Blood tests and chest radiography were performed three times before and after ESD. Chest and abdominal computed tomography (CT) was taken on postoperative day 1. Results: Post-ESD @entity221 developed in 117 @entity1 (24.8%), including 40 @entity1 with @entity55 as shown by computed tomography. The @entity221 was resolved in all the @entity1 after 1 day (median; range, 1-36 days). A multivariate analysis identified age (P=0.0029) and resection diameter (P=0.0009) as risk factors for @entity221 in @entity1 without @entity55 , and operation time (P=0.0025) as a risk factor for @entity221 in @entity1 with @entity55 . Conclusion: The @entity1 would be at risk for post-ESD @entity221 if a large ESD is performed in the elderly. The longer operation time would raise the risk for @entity55 -associated fever.
