Wind, water, wound, walk--do the data deliver the dictum?

Abstract

Objective: To evaluate the teaching dictum "wind, water, wound, walk" in the modern surgical environment.

Design: A retrospective cohort study.

Setting: Hospitals enrolled in the American College of Surgeons National Surgical Quality Improvement Program.

Participants: We identified 11,137 patients enrolled in American College of Surgeons National Surgical Quality Improvement Program Participant Use File (2011) who were older than 18 years; underwent a general surgical procedure; and developed a postoperative pneumonia (PNA, "wind"), urinary tract infection (UTI, "water"), surgical site infection (SSI, "wound"), or venous thromboembolic event (VTE, "walk") for inclusion in the study. Patients were excluded if they had an infection present at the time of surgery or were missing information on the time of diagnosis.

Results: The median day of diagnosis differed significantly according to occurrence type (median day of PNA = 5, UTI = 8, SSI = 11, and VTE = 9, p < 0.001). The sequence of occurrences diagnosed before discharge (median day of PNA = 4, UTI = 5, SSI = 7, and VTE = 5) differed from that of occurrences diagnosed following discharge (median day of PNA = 10, UTI = 14, SSI = 14, and VTE = 14). Within the predischarge and postdischarge subsets, the median day of diagnosis remained significantly different according to occurrence type (all p's < 0.001).

Conclusions: The dictum should be taught as, "wind, water, walk, wound" to reflect the timing and progression of the diagnosis of PNA, UTI, VTE, and SSI. The dictum did not reflect the timing or sequence of the occurrences in the cohort diagnosed after discharge. Educators must teach trainees to apply the dictum in the appropriate patient setting. As surgical care changes, we must continue to reassess our educational pearls to ensure that they reflect the modern reality.

Keywords: Medical Knowledge; Patient Care; Practice-Based Learning and Improvement; educational dictum; postoperative complications; postoperative fever; postoperative occurrences.