Study: Slower Walking Speed = Increased Postop Morbidity + Mortality

This from Annals of Surgery courtesy of the eagle-eyed Joe Mills.

Slower Walking Speed Forecasts Increased Postoperative Morbidity and 1-Year Mortality across Surgical Specialties

Robinson, Thomas N. MD, MS*,¶; Wu, Daniel S. MD*,¶; Sauaia, Angela MD, PhD; Dunn, Christina L. BA*; Stevens-Lapsley, Jennifer E. PT, PhD; Moss, Marc MD; Stiegmann, Greg V. MD*,¶; Gajdos, Csaba MD*; Cleveland, Joseph C. Jr MD*,¶; Inouye, Sharon K. MD, MPH§

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Objective: The purpose of this study was to determine the relationship between the Timed Up and Go test and postoperative morbidity and 1-year mortality, and to compare the Timed Up and Go to the standard-of-care surgical risk calculators for prediction of postoperative complications.
Methods: In this prospective cohort study, patients 65 years and older undergoing elective colorectal and cardiac operations with a minimum of 1-year follow-up were included. The Timed Up and Go test was performed preoperatively. This timed test starts with the subject standing from a chair, walking 10 feet, returning to the chair, and ends after the subject sits. Timed Up and Go results were grouped as fast ≤ 10 seconds, intermediate = 11–14 seconds, and slow ≥ 15 seconds. Receiver operating characteristic curves were used to compare the 3 Timed Up and Go groups to current standard-of-care surgical risk calculators at forecasting postoperative complications.
Results: This study included 272 subjects (mean age of 74 ± 6 years). Slower Timed Up and Go was associated with increased postoperative complications after colorectal (fast 13%, intermediate 29%, and slow 77%; P < 0.001) and cardiac (fast 11%, intermediate 26%, and slow 52%; P < 0.001) operations. Slower Timed Up and Go was associated with increased 1-year mortality following both colorectal (fast 3%, intermediate 10%, and slow 31%; P = 0.006) and cardiac (fast 2%, intermediate 3%, and slow 12%; P = 0.039) operations. Receiver operating characteristic area under curve of the Timed Up and Go and the risk calculators for the colorectal group was 0.775 (95% CI: 0.670–0.880) and 0.554 (95% CI: 0.499–0.609), and for the cardiac group was 0.684 (95% CI: 0.603–0.766) and 0.552 (95% CI: 0.477–0.626).
Conclusions: Slower Timed Up and Go forecasted increased postoperative complications and 1-year mortality across surgical specialties. Regardless of operation performed, the Timed Up and Go compared favorably to the more complex risk calculators at forecasting postoperative complications.

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