ArticleJournal of cardiovascular imaging2026
Clinical associations of right ventricular strain in community-acquired pneumonia: a prospective cohort study.
Article in Journal of cardiovascular imaging, 2026. 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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3 authors.
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Abstract
backgroundPneumonia remains a major cause of morbidity and mortality worldwide, and right ventricular dysfunction may contribute to adverse clinical outcomes. Right ventricular global longitudinal strain (RVGLS) is an emerging echocardiographic marker for assessing right ventricular function, but its prognostic and clinical utility in pneumonia has not been fully clarified.
methodsEighty patients hospitalized with pneumonia underwent echocardiographic assessment, including RVGLS measurement via 2D speckle tracking echocardiography. Patients were categorized into two groups: reduced RVGLS (absolute value < 20%) and normal RVGLS (absolute value ≥ 20%). Demographic, clinical, laboratory, and echocardiographic data were compared, and associations with in-hospital outcomes were analyzed.
resultsTwenty-eight patients (35%) had reduced RVGLS. Compared with the normal RVGLS group, patients with reduced RVGLS had significantly higher N-terminal pro-brain natriuretic peptide and troponin levels. Echocardiographically, patients with reduced RVGLS demonstrated lower tricuspid annular plane systolic excursion and right ventricular ejection fraction, higher pulmonary artery pressures, and larger right ventricular and pulmonary artery diameters, although most diameter measurements remained within reference value thresholds (all P < 0.05). Prolonged hospitalization > 7 days (50.0% vs. 28.8%, P = 0.044) and > 10 days (21.4% vs. 5.8%, P = 0.029), as well as longer duration of oxygen therapy (4.30 days vs. 2.60 days, P = 0.043), were significantly more common in the reduced RVGLS group. Intensive care unit admission and short-term mortality did not differ significantly between groups.
conclusionsReduced RVGLS in pneumonia patients is associated with markers of disease severity, longer hospital stays, and extended oxygen therapy requirements, even without overt right ventricular failure. RVGLS assessment may assist in identifying patients at risk for a complicated clinical course.
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