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Post-Myocardial Infarction Heart Failure in Closed-chest Coronary Occlusion/Reperfusion Model in Göttingen Minipigs and Landrace Pigs
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Post-Myocardial Infarction Heart Failure in Closed-chest Coronary Occlusion/Reperfusion Model in Göttingen Minipigs and Landrace Pigs

Published on: April 17, 2021

Antecedent hypertension interacts with adverse ventricular remodeling after myocardial infarction

Kimio Kamimori1, Minoru Yoshiyama, Yoshihisa Shimada

  • 1Department of Internal Medicine and Cardiology, Osaka City University, Graduate School of Medicine, Japan. m5059985@msic.med.osaka-cu.ac.jp

Osaka City Medical Journal
|April 12, 2005
PubMed

Insights

Hypertension worsens ventricular remodeling after myocardial infarction (MI), leading to poorer left ventricular function. Normotensive patients showed improved function, while hypertensive patients did not.

Area of Science:

  • Cardiology
  • Cardiovascular Research
  • Clinical Medicine

Background:

  • Ventricular remodeling predicts left ventricular function post-myocardial infarction (MI).
  • Accelerated remodeling in hypertensive patients after MI correlates with increased mortality.
  • Understanding hypertension's role in post-MI remodeling is crucial.

Purpose of the Study:

  • To investigate the relationship between antecedent hypertension and ventricular remodeling after MI.
  • To compare remodeling patterns in hypertensive versus normotensive patients post-MI.

Main Methods:

  • Seventy-nine patients with first acute MI (AMI) receiving reperfusion therapy were studied.
  • Left ventriculography (LVG) assessed ventricular volumes and ejection fraction (EF) at baseline and 6 months.
  • Patients were stratified into hypertensive and normotensive groups.

Main Results:

  • Hypertensive patients exhibited increased end-diastolic volume index (EDVI) and end-systolic volume index (ESVI) at 6 months.
  • Normotensive patients showed a significant increase in EF, unlike hypertensive patients.
  • Significant differences in percent change of ESVI and EF were observed between groups.

Conclusions:

  • Antecedent hypertension significantly influences ventricular remodeling post-MI.
  • Hypertension is associated with adverse remodeling and impaired functional recovery after MI.
  • This interaction highlights hypertension as a key factor in post-MI outcomes.
Abstract

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