Similar outcomes after primary and secondary esophagocoloplasty for caustic injuries

Background: The main purpose of the study was to report a comparative experience with primary and secondary esophagocoloplasty for caustic injuries. Secondary esophagocoloplasty is the main rescue option after graft loss, but data in the literature are scarce.

Methods: The operative characteristics, postoperative course, and functional outcomes of 21 secondary and of 246 primary esophagocoloplasty operations performed for caustic injuries between 1987 and 2006 were compared. Intraoperative events requiring significant changes in the planned operative strategy, such as graft ischemia or necrosis, were recorded. Statistical tests were performed in both cohorts to identify factors predictive of postoperative graft necrosis. Univariate analysis was performed to identify factors predictive of functional failure after secondary esophagocoloplasty.

Results: Operative mortality (5% vs 4%, p=0.56), morbidity (62% vs 59%, p=0.96), postoperative graft necrosis (14% vs 7%, p=0.16), and functional success (68% vs 70%, p=0.79) rates of the secondary and primary esophagocoloplasty operations were similar. Intraoperative graft ischemia at the time of secondary esophagocoloplasty was significantly associated with the risk of postoperative graft necrosis (p=0.015) and functional failure (p=0.046). At the time of primary esophagocoloplasty, intraoperative necrosis of the colon was the only independent predictive factor of postoperative graft necrosis (p<0.0001).

Conclusions: Secondary esophagocoloplasty is a safe and reliable salvage option after primary graft loss in patients with caustic injuries. Delayed esophagocoloplasty should be considered if intraoperative colon necrosis occurs at the time of primary reconstruction.