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Updated: Aug 18, 2026

Design of a Cyclic Pressure Bioreactor for the Ex Vivo Study of Aortic Heart Valves
07:12

Design of a Cyclic Pressure Bioreactor for the Ex Vivo Study of Aortic Heart Valves

Published on: August 23, 2011

[Risk factors and pathogenesis of postoperative cardiac decompensation (author's transl)]

E Vormittag

    MMW, Munchener Medizinische Wochenschrift
    |November 28, 1975
    PubMed

    Insights

    Identifying risk factors for postoperative cardiac decompensation in myocardial infarction patients is crucial. Advanced age, heart failure, and hypertension significantly predict adverse outcomes, with a 60% mortality rate in affected cases.

    Area of Science:

    • Cardiology
    • Cardiac Surgery

    Background:

    • Healed myocardial infarction patients are at risk for postoperative cardiac decompensation.
    • Early identification of risk factors is essential for improving patient outcomes.

    Purpose of the Study:

    • To assess the prognostic value of various risk factors for early postoperative cardiac decompensation.
    • To understand the pathogenetic mechanisms underlying postoperative cardiac failure in this patient cohort.

    Main Methods:

    • Retrospective analysis of 214 patients with healed myocardial infarction.
    • Evaluation of clinical, surgical, and laboratory parameters to identify predictors of cardiac decompensation.

    Main Results:

    • Cardiac decompensation occurred in 50 patients (23.4%).
    • Significant risk factors included advanced age (≥75 years), pre-existing heart failure, hypertension (≥180/95 mm Hg), advanced arteriosclerosis, infections, emergency surgery, prolonged surgery, intraoperative hypotension (systolic <70 mm Hg), and postoperative anemia (<3.5 million erythrocytes/cmm).
    • Postoperative cardiac failure was fatal in 60% of affected patients.

    Conclusions:

    • Several factors significantly increase the risk of early postoperative cardiac decompensation in patients with prior myocardial infarction.
    • A critical imbalance between myocardial oxygen demand and supply in the compromised heart underlies postoperative cardiac failure.

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