An investigation of possible risk factors associated with XXXX after benign @entity1066 operations.

@entity4726 @entity1944 @entity5115 @entity5 @entity1066 @entity3542 @entity3621 @entity2210 @entity1613 @entity356
The risk of developing @entity356 has been investigated in a case-control study and in a prospective investigation. In the case-control study, 1495 cases of @entity356 were identified in five city hospitals and matched with autopsy controls from the same hospitals. The frequency of operations for benign @entity1066 [partial gastrectomy (PG) and gastroenterostomy] was similar in the two groups. Thus, there was no increased risk for late @entity356 after an @entity1066 operation. A total of 140 operated @entity1066 subjects [80 truncal vagotomy and drainage (TVD), 60 PG and 78 nonoperated cases attending with @entity2210 (C)] were examined by endoscopy, multiple gastric biopsy and analysis of gastric juice for @entity3542 . Biopsies were graded for @entity3621 and a @entity3621 index was derived (normal, 1; superficial @entity3621 , 2; chronic @entity4726 : mild, 3; moderate, 4; severe, 5). More @entity4726 was found in operated subjects than in controls: TVD, 2.3 +/- 0.08 (mean +/- SE); PG, 2.6 +/- 0.1 versus C, 1.8 +/- 0.08, p less than 0.01. The severity of @entity4726 increased after an operation interval of 20 years in PG subjects (p less than 0.05). @entity1944 was a common change, but unequivocal @entity5115 was not observed. Two cases of operated @entity5 were found. High levels of @entity3542 were positively correlated with pH and a high @entity3621 index. This evidence does not suggest that @entity1066 surgery leads to either an increased risk of @entity5 or a @entity1613 .
