Background: Anastomotic leak is a feared complication. The presence of abnormal vital signs is often cited as an important overlooked predictive clue in retrospective settings once the diagnosis of leak has already been established. We aimed to determine the prevalence of abnormal vital signs following colorectal resection and assess its predictive value.
Methods: We retrospectively studied patients undergoing colorectal resection. The performance of vital signs in predicting anastomotic leak was assessed using discrete-time survival analysis and receiver operator characteristic curve.
Results: 1662 patients (841 laparoscopic, 821 open) were included. Clinical anastomotic leak was diagnosed in 50 patients (3.1%). 96.8% of patients of the entire cohort had at least one abnormal vital sign during their postoperative course. No individual vital sign was a strong predictor of anastomotic leak in either laparoscopic or open cohorts.
Conclusion: Vital sign abnormalities are extremely common following open and laparoscopic colorectal surgery and alone are poor predictors of anastomotic leak.
Keywords: Anastomotic leak; Colorectal surgery; Vital signs.
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