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[Nursing workload indices TISS-10, TISS-28, and NEMS : Higher workload with agitation and delirium is not reflected].
Medizinische Klinik, Intensivmedizin und Notfallmedizin 2016 Februrary
BACKGROUND: Financial resources for the treatment of ICU patients requiring high nursing workload are allocated within the German diagnostic-related groups (DRG) system in part through the Therapeutic Intervention Scoring System-10 (TISS-10). TISS-10, however, has never been validated. This study evaluated whether delirium and agitation in ICU were reflected by TISS-10, and also by the established workload indices TISS-28 and Nine Equivalents of Nursing Manpower (NEMS). Secondary aims were if indices correlated, and what effects delirium and agitation had on financial balances.
MATERIALS AND METHODS: Analyses were performed retrospectively in 521 datasets from 152 patients. Nursing workload was assessed with TISS-28, TISS-10, and NEMS, delirium with the Confusion Assessment Method for Intensive Care Units (CAM-ICU), and vigilance with the Richmond Agitation-Sedation Scale (RASS). Revenues were retrieved from the institution's patient data management system, and costs calculated with the Budget Calculation Tool 2007 provided by the German Society of Anaesthesiologists.
RESULTS: Delirium was found in 36.2 % of patients (n = 55). TISS-28, TISS-10, and NEMS were not higher in patients with delirium, if corrected for mechanical ventilation. TISS-28, TISS-10, and NEMS were significantly higher in deeply sedated and comatose patients (RASS ≤ - 3, p < 0.001), but not in agitated (RASS ≥ 1) and lightly sedated patients (RASS - 1/- 2). TISS-10 and TISS-28 had a linear correlation (r (2) = 0.864). Median financial balances were negative, but much more pronounced in patients with delirium that without (- 3174 € with delirium vs. - 1721 € without delirium, p = 0.0147).
CONCLUSION: The standard workload-scores (TISS-10, TISS-28, NEMS) do not reflect higher daily workload associated with patients with delirium and agitation.
MATERIALS AND METHODS: Analyses were performed retrospectively in 521 datasets from 152 patients. Nursing workload was assessed with TISS-28, TISS-10, and NEMS, delirium with the Confusion Assessment Method for Intensive Care Units (CAM-ICU), and vigilance with the Richmond Agitation-Sedation Scale (RASS). Revenues were retrieved from the institution's patient data management system, and costs calculated with the Budget Calculation Tool 2007 provided by the German Society of Anaesthesiologists.
RESULTS: Delirium was found in 36.2 % of patients (n = 55). TISS-28, TISS-10, and NEMS were not higher in patients with delirium, if corrected for mechanical ventilation. TISS-28, TISS-10, and NEMS were significantly higher in deeply sedated and comatose patients (RASS ≤ - 3, p < 0.001), but not in agitated (RASS ≥ 1) and lightly sedated patients (RASS - 1/- 2). TISS-10 and TISS-28 had a linear correlation (r (2) = 0.864). Median financial balances were negative, but much more pronounced in patients with delirium that without (- 3174 € with delirium vs. - 1721 € without delirium, p = 0.0147).
CONCLUSION: The standard workload-scores (TISS-10, TISS-28, NEMS) do not reflect higher daily workload associated with patients with delirium and agitation.
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