The Impact of Sarcopenia on the Clinical Profile of Hospitalized Pulmonary Embolism Patients: A Longitudinal Cohort Study

Abstract

Pulmonary embolism (PE) is a potentially life-threatening cardiopulmonary condition that frequently requires hospitalization and is often accompanied by reduced mobility, systemic inflammation, and nutritional impairment. These factors may contribute to the development or worsening of sarcopenia, a condition associated with adverse outcomes in hospitalized patients. However, its clinical relevance in patients with PE has not been sufficiently explored. This longitudinal observational cohort study evaluated the association between sarcopenia and clinical outcomes in patients hospitalized with confirmed PE. Participants were classified according to the presence of sarcopenia based on muscle mass and muscle strength criteria. Symptom severity, functional status, and health-related quality of life were assessed at hospital admission, at discharge, and three months after discharge. A total of 162 patients were included. Patients with sarcopenia exhibited a greater symptom burden, poorer functional status, and worse self-perceived health compared with non-sarcopenic patients. At discharge, sarcopenic patients reported higher levels of dyspnea and fatigue, poorer health-related quality of life, and experienced longer hospital stays. At the three-month follow-up, these patients continued to show significantly worse symptoms, reduced functionality, and lower quality of life. Sarcopenia was therefore associated with a persistently worse clinical and functional profile in patients hospitalized for PE. Early identification of sarcopenia may help identify patients at higher risk of poor recovery and support the implementation of targeted interventions aimed at improving functional outcomes and quality of life.