Prospective international validation of the predisposition, infection, response and organ dysfunction (PIRO) clinical staging system among intensive care and general ward patients

Data de publicação:

Autores da FMUP

  • Pedro Pereira Rodrigues

    Autor

  • Nuno Miguel Rocha Pereira

    Autor

Participantes de fora da FMUP

  • Cardoso, T
  • Nunes, C
  • Almeida, M
  • Cancela, J
  • Rosa, F
  • Ferreira, I
  • Seabra-Pereira, F
  • Vaz, P
  • Carneiro, L
  • Andrade, C
  • Davis, J
  • Marçal, A
  • Friedman, ND

Unidades de investigação

Abstract

Background Stratifying patients with sepsis was the basis of the predisposition, infection, response and organ dysfunction (PIRO) concept, an attempt to resolve the heterogeneity in treatment response. The purpose of this study is to perform an independent validation of the PIRO staging system in an international cohort and explore its utility in the identification of patients in whom time to antibiotic treatment is particularly important. Methods Prospective international cohort study, conducted over a 6-month period in five Portuguese hospitals and one Australian institution. All consecutive adult patients admitted to selected wards or the intensive care, with infections that met the CDC criteria for lower respiratory tract, urinary, intra-abdominal and bloodstream infections were included. Results There were 1638 patients included in the study. Patients who died in hospital presented with a higher PIRO score (10 +/- 3 vs 8 +/- 4, p < 0.001). The observed mortality was 3%, 15%, 24% and 34% in stage I, II, III and IV, respectively, which was within the predicted intervals of the original model, except for stage IV patients that presented a lower mortality. The hospital survival rate was 84%. The application of the PIRO staging system to the validation cohort resulted in a positive predictive value of 97% for stage I, 91% for stage II, 85% for stage III and 66% for stage IV. The area under the receiver operating characteristics curve (AUROC) was 0.75 for the all cohort and 0.70 if only patients with bacteremia were considered. Patients in stage III and IV who did not have antibiotic therapy administered within the desired time frame had higher mortality rate than those who have timely administration of antibiotic. Conclusions To our knowledge, this is the first external validation of this PIRO staging system and it performed well on different patient wards within the hospital and in different types of hospitals. Future studies could apply the PIRO system to decision-making about specific therapeutic interventions and enrollment in clinical trials based on disease stage.

Dados da publicação

ISSN/ISSNe:
2110-5820, 2110-5820

Annals of Intensive Care  Springer-Verlag GmbH and Co. KG

Tipo:
Article
Páginas:
-
Link para outro recurso:
www.scopus.com

Citações Recebidas na Web of Science: 3

Citações Recebidas na Scopus: 3

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Keywords

  • Predisposition; Infection; Response; Organ dysfunction; PIRO staging system; Hospital mortality

Financiamento

Proyectos asociados

Predição e análise do tipo de parto em gestantes portuguesas através de Redes Bayesianas.

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Estudo Observacional Académico (Redes Bayesianas) . 2021

Hospitalização ou vigilância: ação precoce na orientação de pacientes com COVID-19.

Investigador Principal: Pedro Pereira Rodrigues

Estudo Observacional Académico (Orientação) . 2020

Identifying problems in the appointment scheduling system of a major Portuguese public hospital - Is there room for improvement?

Investigador Principal: Pedro Pereira Rodrigues

Estudo Clínico Académico (Scheduling system) . 2020

Congenital Heart Disease Detection Using Clinical Data and Auscultation Heart Sounds: a Machine Learning Approach

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Estudo Clínico Académico . 2021

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Investigador Principal: Nuno Miguel Rocha Pereira

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