Observational studyOpen heart2025
Palliative Performance Scale predicts mortality in cardiac intensive care unit.
Observational study in Open heart, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
10 authors.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundThe ageing population has led to an increased prevalence of chronic diseases, posing challenges for the management of critically ill cardiac patients with multiple comorbidities. The Palliative Performance Scale (PPS), initially developed for terminally ill cancer patients, has shown prognostic value in various medical settings but remains understudied in cardiac intensive care units (CICUs). This study evaluates the PPS as a prognostic tool for in-hospital and 1-year all-cause mortality in CICU patients.
methodsWe conducted a single-centre, prospective, observational study at the Maggiore Hospital in Bologna, including 1131 patients admitted to the CICU between August 2022 and November 2023. Patients were stratified into two groups based on their PPS at admission (≤70 and >70). Multivariable regression models were used to assess predictors of mortality, and Kaplan-Meier survival curves were generated. Model accuracy and calibration were evaluated using receiver operating characteristic curves and the Hosmer-Lemeshow test.
resultsPatients with PPS ≤70 had significantly higher 1-year all-cause mortality (37.0% vs 9.8%, p<0.001) and in-hospital all-cause mortality (17.7% vs 3.3%, p<0.001). In the multivariable regression models, PPS emerged as an independent predictor of both 1-year and in-hospital all-cause mortality, along with age and Sequential Organ Failure Assessment score. The models demonstrated good discriminatory performance (area under the curve of 0.841 for 1-year mortality, 0.862 for in-hospital mortality) and acceptable calibration.
conclusionsThe PPS is a reliable and independent predictor of mortality in CICU patients. Incorporating PPS into clinical practice may enhance risk stratification, guide decision-making and optimise resource allocation in this high-risk population.
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