Eight-Year Survival Analysis of Patients With Dilated Cardiomyopathy: Does Treatment Era Affect Prognosis?

Lukas Kucera1, Martin Chudý1, Marcela Danková1

  • 1Department of Heart Failure and Heart Transplantation, Faculty of Medicine, Comenius University, Bratislava, SVK.

Cureus
|August 11, 2025
PubMed

Insights

Dilated cardiomyopathy (DCM) survival remained stable despite recent patients having more severe disease. Older age, advanced kidney disease, and higher NT-proBNP levels predict worse outcomes in DCM patients.

Area of Science:

  • Cardiology
  • Heart Failure Research

Background:

  • Dilated cardiomyopathy (DCM) is a primary cause of heart failure (HF).
  • Understanding long-term survival and prognostic factors in DCM is crucial for patient management.

Purpose of the Study:

  • To retrospectively analyze long-term survival in patients with DCM.
  • To investigate the impact of various clinical factors on DCM prognosis over different time periods.

Main Methods:

  • Retrospective analysis of 622 DCM patients.
  • Comparison of survival rates between cohorts diagnosed in 2016-2019 and 2020-2023.
  • Multivariable analysis to identify independent predictors of survival.

Main Results:

  • Overall survival was comparable between the two periods (p=0.856), with the later period reflecting shorter follow-up.
  • Patients diagnosed between 2020-2023 exhibited a higher prevalence of NYHA class III/IV and larger ventricular diameters.
  • Independent negative predictors for survival included older age, NYHA class III/IV, CKD stages 3-5, diabetes, and elevated NT-proBNP (>3000 ng/L).
  • Female sex and overweight status were associated with improved survival.

Conclusions:

  • Survival rates for DCM patients have remained stable, even with a recent increase in patient severity.
  • Clinical factors like age, disease severity, comorbidities (CKD, diabetes), and NT-proBNP levels significantly influence DCM prognosis.
  • The findings suggest a need for continued monitoring and tailored management strategies for DCM patients, considering potential influences like the COVID-19 pandemic.

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