2021, Number 6
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Med Int Mex 2021; 37 (6)
Validation of the SOAR scale for clinical outcomes in high altitude pneumonia
Bastidas-Goye AR, Hernández-Bonilla ET, Núñez-Varela JI, Pineda-Vanegas AF, Gómez-Rojas MF, Figueroa-Rodríguez G, Ascencio-Vera MG, Murillo-Silva JA
Language: Spanish
References: 24
Page: 920-928
PDF size: 200.91 Kb.
ABSTRACT
Objective: To evaluate the validity of the systolic blood pressure, oxygenation, age
and respiratory rate (SOAR) score in predicting the need for mechanical ventilation,
intensive care unit (ICU) admission and mortality up to 30 days in patients with pneumonia
at high altitude.
Materials and Methods: An observational retrospective cohort study was performed
with validity analysis for the following outcomes: 30-day mortality, need for
mechanical ventilation and ICU admission in patients diagnosed with pneumonia,
performed from 2015 to 2020 at a hospital at 2630 meters above sea level in the region
of Cundinamarca, Colombia.
Results: A total of 471 patients were included in this study, the median age was
68.3 ± 19.1. Of these, 256 patients had a severe pneumonia diagnosis according to
the SOAR score. The area under the receiver operating characteristic (ROC) curve of
the SOAR score was 0.59 (IC95% 0.511-0.687; p = 0.029) for 30-day mortality, 0.50
(IC95% 0.43-0.56; p = 0.946) for the need of mechanical ventilation and finally 0.49
(IC95%: 0.43-0.54; p = 0.743) for ICU admission. 30-day mortality prediction had a
66.7% sensitivity and 46.9% specificity with a positive predictive value of 11.7% and
negative predictive value of 93.9%. The cutoff value of the score was of 2.
Conclusions: The SOAR score shows a moderate performance in the prediction of
30-day mortality in patients with pneumonia in high altitude environments. Additionally,
it has no utility in the prediction of ICU admission and the need for mechanical
ventilation in these patients.
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