1. Feasibility of a screening algorithm for chronic thromboembolic pulmonary hypertension: The OSIRIS study
- Author
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Instituto de Salud Carlos III, Sociedad Española de Neumología y Cirugía Torácica, Bayer España, Otero, Remedios, Lobo, José Luis, López, Raquel, Fernández, Carmen, Jiménez, David, Muriel, Alfonso, Alfonso, María, Ballaz, Aitor, Núñez-Ares, Ana, Rodríguez-Matute, Consolación, Miguel-Díez, Javier de, Rodríguez-Chiaradía, Diego Agustín, Alcalde, Mercedes, Elías-Hernández, Teresa, Jara Palomares, Luis, Rivas, Agustina, Alonso, Ángel, García-Ortega, Alberto, Sancho, Teresa, Morillo, Raquel, García-Bragado, Fernando, Hernández-Blasco, Luis, Uresandi, Fernando, Madridano, Olga, Agüero, Ramón, Monreal, Manuel, on behalf of theOSIRIS Investigators, Instituto de Salud Carlos III, Sociedad Española de Neumología y Cirugía Torácica, Bayer España, Otero, Remedios, Lobo, José Luis, López, Raquel, Fernández, Carmen, Jiménez, David, Muriel, Alfonso, Alfonso, María, Ballaz, Aitor, Núñez-Ares, Ana, Rodríguez-Matute, Consolación, Miguel-Díez, Javier de, Rodríguez-Chiaradía, Diego Agustín, Alcalde, Mercedes, Elías-Hernández, Teresa, Jara Palomares, Luis, Rivas, Agustina, Alonso, Ángel, García-Ortega, Alberto, Sancho, Teresa, Morillo, Raquel, García-Bragado, Fernando, Hernández-Blasco, Luis, Uresandi, Fernando, Madridano, Olga, Agüero, Ramón, Monreal, Manuel, and on behalf of theOSIRIS Investigators
- Abstract
[Introduction] Chronic thromboembolic pulmonary hypertension (CTEPH) is a long-term sequel to pulmonary embolism (PE) whose incidence varies according to different published studies. We have carried out this study to determine its incidence within 2 years after index pulmonary embolism and to study limitations to an early diagnosis., [Material and methods] OSIRIS is a multicentre, longitudinal cohort study. Patients were followed for 3, 6, 12, and 24 months after pulmonary embolism using a structured three-step algorithm. A physician-centered questionnaire at least one positive response in a screening proceeded to the second step, transthoracic echocardiography. The third step consisted of ventilation/perfusion lung scintigraphy and right heart catheterisation. A transthoracic echocardiography was performed in patients without positive response in the screening questionnaire after 2 years. CTEPH diagnosis required haemodynamic confirmation by right heart catheterisation and mismatched perfusion defects on lung scintigraphy., [Results] A total of 1191 patients were enrolled in 18 Spanish hospitals. Cumulative CTEPH incidence after 2-years PE was: 2.49 % (95 % CI: 1.68–3.56) and the incidence rate of CTEPH was 1.1 cases per 1000 person-months (95 % CI: 0.725; 1.60). The CTEPH algorithm presented a lack of adherence of 29 %; patient and physician preferences posed barriers to the triage algorithm The screening questionnaire, in patients who completed the follow-up, shows a specificity of 91.3 % (89.0–93.2 %) and negative predictive value of 99.4 % (98.4–99.8 %)., [Conclusions] OSIRIS provides practiced clinical based data on the chronic thromboembolic pulmonary hypertension incidence and identified barriers to the implementation of a 3-step triage algorithm for its detection.
- Published
- 2023