Emergency surgery for obstructing colorectal malignancy: prognostic and risk factors.

Purpose: Emergency surgery for colorectal malignant obstruction is thought to correlate with poor outcome. The main aim of our study was to identify possible factors that could predict obstruction, and risk factors of poor postoperative outcome. The second aim was to determine any differences between primary anastomosis and stoma creation in the obstruction population, especially in left-sided tumors.