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Updated: Aug 2, 2026

Lumped-Parameter and Finite Element Modeling of Heart Failure with Preserved Ejection Fraction
09:20

Lumped-Parameter and Finite Element Modeling of Heart Failure with Preserved Ejection Fraction

Published on: February 13, 2021

[Congestive heart failure--some current problems]

D Petrova, V Draganov, Iu Simeonov

    Vutreshni Bolesti
    |May 11, 2002
    PubMed

    Insights

    Congestive heart failure (CHF) affects many, often progressing rapidly. This study analyzed 6428 patients over 6 years, finding chronic ischemic disease and hypertension as primary causes, with NYHA functional classes II and III being most common.

    Area of Science:

    • Cardiology
    • Public Health

    Background:

    • Congestive heart failure (CHF) is a prevalent and serious condition with a poor long-term prognosis.
    • CHF exhibits a tendency for rapid progression, necessitating a deeper understanding of its contributing factors and patient outcomes.

    Purpose of the Study:

    • To conduct a retrospective analysis of congestive heart failure (CHF) patients.
    • To determine the New York Heart Association (NYHA) functional class and type of CHF.
    • To identify the primary diseases leading to heart decompensation and causes of mortality in CHF patients.

    Main Methods:

    • Retrospective investigation of 6428 patients over a 6-year period.
    • Analysis of patient data to determine CHF prevalence, NYHA functional class, and associated comorbidities.
    • Examination of mortality data and survival duration post-symptom manifestation.

    Main Results:

    • 1095 patients (17.03%) had congestive heart failure (CHF), predominantly in NYHA functional classes II and III.
    • CHF frequency significantly increased in the 61-70 age decade.
    • Key underlying diseases included chronic ischemic heart disease, arterial hypertension, COPD with chronic cor pulmonale, and valve diseases.

    Conclusions:

    • Chronic ischemic heart disease and arterial hypertension are major contributors to CHF.
    • CHF patients in functional classes II and III are common, with increased incidence in older age groups.
    • The average age of deceased CHF patients was 67.8 years, with a mean survival of 13.2 years after symptom onset.

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