BACKGROUND: It has been suggested that inadequate lymph node harvest may result in pathologically understaged or indeterminate staging of @entity1 with @entity14 ( @entity14 ). We compared the adequacy of nodal staging in @entity1 undergoing emergency surgery compared with elective surgery for @entity14 . METHODS: Using a prospectively collected @entity14 surgery database at a tertiary care centre, we performed a cohort study. The mean number of lymph nodes harvested and the proportion of @entity1 who had inadequate staging (< 12 nodes harvested) were compared between emergency and elective surgery cohorts. Our analysis was adjusted for @entity5 site, type of resection, surgical training and pathologic stage. RESULTS: A total of 1279 of 1356 (94%) enrolled @entity1 had nodal data available for analysis; 161 (13%) @entity1 had emergency surgery and 1118 (87%) had elective surgery. The mean number of nodes removed was higher in the emergency surgery group (mean difference +2.8, 95% confidence interval [CI] 0.6-5.1, p = 0.012). The proportion of @entity1 with inadequate nodal staging did not differ between groups (emergent 16%, elective 17%, p = 0.79). The odds of adequate nodal staging, adjusting for site, type of resection, training and stage was no different between groups (OR 0.80, 95% CI 0.47-1.35, p = 0.41). CONCLUSION: The evidence does not support the common belief that emergency surgery is more commonly understaged in @entity14 . Our data suggest emergency surgery resulted in a significant increase in the average number of nodes harvested, with no difference in inadequate nodal staging.

Emergency surgery for XXXX does not result in nodal understaging compared with elective surgery.

@entity1 :: ('9606', 'Species') :: ['patients'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumour'] @entity14 :: ('MESH:D015179', 'Disease') :: ['CRC', 'colorectal cancer']
@entity14 :: (MESH:D015179,Disease) :: ['colorectal cancer']
