Figure 1

Identification of primary large colon impaction cases from a database of 1032 colic cases Flowchart outlining the identification of primary left ventral large colon and/or pelvic flexure impaction cases from a database of 1032 cases in a survey of veterinary practitioner’s primary assessment of colic. * Impaction was defined as obstructed enlarged left ventral large colon and/or pelvic flexure, and was identified by the terms ‘impaction’, ‘obstruction’ or ‘SCOD’ in the database. **Inclusion criteria were cases with a primary impaction of the left ventral large colon and/or pelvic flexure, which were positively identified on rectal examination [2, 15, 16].