National Early Warning Score-2 for Identification of Patients with Intermediate-High-Risk Pulmonary Embolism

Carmen Rodríguez; Alfonso Muriel; Luis Carrasco; Sara González; Winnifer Briceño; Diego Durán; Ana Retegui; Roger D. Yusen; Behnood Bikdeli; David Jiménez

doi:10.1055/s-0043-1769938

Seminars in Thrombosis and Hemostasis, Inhaltsverzeichnis

Semin Thromb Hemost 2023; 49(07): 716-724
DOI: 10.1055/s-0043-1769938

Review Article

National Early Warning Score-2 for Identification of Patients with Intermediate-High-Risk Pulmonary Embolism

Carmen Rodríguez

¹Respiratory Department, Hospital Ramón y Cajal and Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain

,

Alfonso Muriel

²Department of Biostatistics, Hospital Ramón y Cajal and Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain

,

Luis Carrasco

¹Respiratory Department, Hospital Ramón y Cajal and Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain

,

Sara González

¹Respiratory Department, Hospital Ramón y Cajal and Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain

,

Winnifer Briceño

¹Respiratory Department, Hospital Ramón y Cajal and Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain

,

Diego Durán

¹Respiratory Department, Hospital Ramón y Cajal and Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain

,

Ana Retegui

¹Respiratory Department, Hospital Ramón y Cajal and Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain

,

Roger D. Yusen

³Division of Pulmonary and Critical Care Medicine, Washington University School of Medicine, St. Louis, Missouri

,

Behnood Bikdeli

⁴Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts

⁵Center for Outcomes Research and Evaluation (CORE), Yale University School of Medicine, New Haven, Connecticut

⁶Cardiovascular Research Foundation, New York, New York

,

David Jiménez

¹Respiratory Department, Hospital Ramón y Cajal and Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain

⁷CIBER Enfermedades Respiratorias (CIBERES), Madrid, Spain

⁸Department of Medicine, Universidad de Alcalá, Madrid, Spain

› Institutsangaben

Abstract

Consensus statements have proposed the use of the National Early Warning Score 2 (NEWS2) to identify stable patients with acute pulmonary embolism (PE) and an intermediate-high risk of adverse outcomes. We aimed to externally validate NEWS2 and compare it to another predictive score (Bova). Using NEWS2 (cutoff ≥5 and ≥7) and the Bova score (cutoff >4), we classified patients as intermediate-high risk (vs. non-intermediate-high risk), and we compared the test characteristics of these risk classification tools for a complicated course within 30 days after PE diagnosis. We also assessed the validity of NEWS2 for predicting a complicated course by adding the results of echocardiography and troponin testing to the model. Of the 848 enrolled patients, the NEWS2 score ≥5 classified 471 (55.5%) and the Bova score classified 37 (4.4%) as intermediate-high risk. NEWS2 had a significantly lower specificity for a 30-day complicated course than Bova (45.4 vs. 96.3%, respectively; p < 0.001). Using the higher score threshold (≥7), the NEWS2 classified 99 (11.7%) as intermediate-high risk, and the specificity was 88.9% (difference with Bova, 7.4%; p < 0.001). The proportion of patients with intermediate-high risk PE was 2.4% for the combination of a positive troponin testing and echocardiographic right ventricle dysfunction and a positive NEWS2 (score ≥7), while the specificity was 97.8% (difference with Bova, 1.5%; p = 0.07). Bova outperforms NEWS2 for predicting a complicated course among stable patients with PE. Addition of troponin testing and echocardiography improved the specificity of NEWS2, although it was not superior to Bova.

ClinicalTrials.gov number: NCT02238639.

Keywords

pulmonary embolism - prognosis - survival - scores

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