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Left ventricular remodeling after myocardial infarction in antecedent hypertensive patients

Minoru Yoshiyama1, Kimio Kamimori, Yoshihisa Shimada

  • 1Department of Internal Medicine and Cardiology, Graduate School of Medicine, Osaka City University, Osaka, Japan. yoshiyama@med.osaka-cu.ac.jp

Hypertension Research : Official Journal of the Japanese Society of Hypertension
|September 6, 2005
PubMed

Insights

Antecedent hypertension worsens ventricular remodeling after myocardial infarction (MI). Hypertensive patients experienced increased ventricular volumes and no improvement in ejection fraction, unlike normotensive patients.

Area of Science:

  • Cardiology
  • Cardiovascular Research
  • Hypertension Research

Background:

  • Antecedent hypertension is linked to adverse outcomes and heart failure post-myocardial infarction (MI).
  • Accelerated ventricular remodeling contributes to increased mortality following MI.

Purpose of the Study:

  • To investigate the relationship between antecedent hypertension and ventricular remodeling after MI.
  • To determine how pre-existing hypertension influences cardiac changes post-myocardial infarction.

Main Methods:

  • Ninety-four patients with a first acute MI treated with reperfusion therapy were enrolled.
  • Left ventriculography was performed immediately post-reperfusion and at 6 months.
  • Patients were categorized into hypertensive and normotensive groups for comparative analysis.

Main Results:

  • The hypertensive group exhibited significant increases in end-diastolic volume index (EDVI) and end-systolic volume index (ESVI) at 6 months.
  • In contrast, the normotensive group showed no significant changes in EDVI or ESVI.
  • Ejection fraction (EF) remained unchanged in the hypertensive group but improved significantly in the normotensive group.

Conclusions:

  • Antecedent hypertension significantly exacerbates ventricular remodeling after myocardial infarction.
  • Hypertension is associated with detrimental changes in ventricular volumes and function post-MI.
  • These findings highlight the critical role of hypertension in adverse cardiac remodeling following acute MI.

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