Long-term risks of cardiovascular-specific mortality among myeloproliferative neoplasms patients

Background: The myeloproliferative neoplasm (MPN) is a heterogeneous group of clonal hyperplasia hematopoietic stem cell disorders, predominantly affecting middle-aged and elderly individuals, with a slow disease progression. With advancements in disease-related research, the survival rates of MPN patients have significantly improved. This research primarily focuses on cardiovascular disease mortality (CVM) and prognostic factors in MPN patients, aiming to provide clinicians with more comprehensive references.Methods: A total of 24,277 patients were included in the Surveillance, Epidemiology, and End Results (SEER) database. Cumulative mortality was assessed using a competing risk model, univariate and multivariate regression analysis of cardiovascular disease (CVD) mortality risk factors, and a comparison of standardized mortality ratio (SMR) and general population CVM.Results: Among the 24,277 patients included in this study, a total of 8841 deaths occurred during the follow-up period, with 2429 attributed to CVD. Notably, the risk of CVM was found to be significantly higher in patients with MPNs compared to the general population. Furthermore, this risk increased over time. CVD emerged as the predominant cause of death among individuals aged over 80 years and younger patients exhibited a significantly elevated SMR. Additionally, age, race, marital status, and insurance status were identified as independent prognostic factors for CVM.Conclusion: The incidence of cardiovascular events in patients with MPNs is significantly higher compared to the general population. Early screening and assessment of cardiac health should be implemented in MPN patients to prevent the occurrence of cardiovascular events and enhance their prognosis.