Simone Thomas, Jane H. Burridge, Marcus Pohl , Frank Oehmichen, Jan Mehrholz
Wissenschaftliches Institut, Klinik Bavaria Kreischa, Germany
DOI: 10.2340/16501977-2135

Objectives: To describe the time course of recovery of sit-to-stand function in patients with intensive-care-unit-acquired muscle weakness and the impact of recovery.
Methods: A cohort study in post-acute intensive care unit and rehabilitation units. Patients with chronic critical illness and intensive-care-unit-acquired muscle weakness were included. Sit-to-stand function was measured daily, using a standardized chair height, defined as 120% of the individual’s knee height.
Results: A total of 150 patients were recruited according to the selection criteria. The primary outcome of independent sit-to-stand function was achieved by a median of 56 days (interquartile range Q1–Q3 = 32–90 days) after rehabilitation onset and a median of 113 days (Q1–Q3=70–148 days) after onset of illness. The final multivariate model for recovery of sit-to-stand function included 3 variables: age (adjusted hazard ratio (HR) = 0. 96 (95% CI 0. 94–0. 99), duration of ventilation (HR=0. 99 (95% CI 0. 98–1. 00) and Functional Status Score for the Intensive Care Unit (FSS-ICU) (adjusted HR=1. 12 (95% CI 1. 08–1. 16)).
Conclusion: Rapid recovery of sit-to-stand function for most patients with intensive-care-unit-acquired muscle weakness were seen. The variables older age and longer duration of ventilation decreased, and higher FSS-ICU increased the chance of regaining independent sit-to-stand function.