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Changes in natriuretic peptides following passive containment surgery in heart failure patients with dilated

Fredrik Bredin1, Jan Liska, Anders Franco-Cereceda

  • 1Department of Molecular Medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden. fredrik.bredin@karolinska.se

Interactive Cardiovascular and Thoracic Surgery
|November 15, 2008
PubMed

Insights

Passive containment surgery with the ACORN Cardiac Support Device significantly decreased brain natriuretic peptide (BNP) levels in heart failure patients. This intervention also improved cardiac function and reduced ventricular dimensions.

Area of Science:

  • Cardiology
  • Biomedical Engineering
  • Heart Failure Research

Background:

  • Dilated cardiomyopathy presents a significant challenge in heart failure management.
  • Natriuretic peptides, including BNP, are crucial biomarkers for heart failure severity and prognosis.
  • Surgical interventions aim to improve cardiac function and reverse adverse remodeling in heart failure patients.

Purpose of the Study:

  • To assess the impact of passive containment surgery using the ACORN Cardiac Support Device on plasma natriuretic peptide levels.
  • To evaluate changes in cardiac function and ventricular remodeling post-surgery.
  • To correlate changes in natriuretic peptides with clinical outcomes in dilated cardiomyopathy patients.

Main Methods:

  • A cohort of thirteen patients with dilated cardiomyopathy underwent cardiac surgery with the ACORN Cardiac Support Device.
  • Patients were categorized into ischemic (coronary artery bypass) and idiopathic (mitral valve plasty or device only) cardiomyopathy groups.
  • Plasma levels of atrial natriuretic peptide, brain natriuretic peptide (BNP), and C-type natriuretic peptide were measured pre- and 12-months post-surgery.

Main Results:

  • A significant reduction in circulating brain natriuretic peptide (BNP) levels was observed post-surgery (P<0.05).
  • No significant changes were noted in atrial or C-type natriuretic peptide levels.
  • Significant improvements in NYHA functional class (P<0.001), 6-minute walk distance (P<0.01), and left ventricular dimensions (P<0.001) were recorded.

Conclusions:

  • Passive containment surgery with the ACORN Cardiac Support Device leads to decreased BNP levels in heart failure patients.
  • The procedure is associated with functional improvement and reverse cardiac remodeling.
  • BNP reduction serves as a potential indicator of positive outcomes following this surgical approach.

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