For cases that are not resolved by conservative treatment, the prognosis is good if surgery is performed early and the colon has not become necrotic or ruptured. The overall mortality rate for horses requiring surgery is reported to be 40%. | For cases that are not resolved by conservative treatment, the prognosis is good if surgery is performed early and the colon has not become necrotic or ruptured. The overall mortality rate for horses requiring surgery is reported to be 40%. |