Inflammatory bowel disease associated with Yersinia enterocolitica O:3 infection.

BACKGROUND: Certain microorganisms may be associated with the development of inflammatory bowel disease (IBD). These pathogens may possess such properties as immunological capability or tissue invasiveness. An association between Yersinia enterocolitica infection and ulcerative colitis (UC) was suggested 30 years ago, and a connection with Crohn's disease (CD) may also exist.

Influence of failure of primary wound healing on subsequent recurrence of pilonidal sinus. combined prospective study and randomised controlled trial.

Objective: To find out whether failure of primary wound healing after excision and primary suture for chronic pilonidal sinus predicts recurrence.

Design: Follow-up of one prospective study and one subsequent randomised, multicentre study.

Setting: Three teaching hospitals in WesternNorway.