Relationship between location and size of myocardial infarction and their reciprocal influences on post-infarction left ventricular remodeling
2011

Impact of Myocardial Infarction Location and Size on Heart Remodeling

Sample size: 260 publication Evidence: moderate

Author Information

Author(s): Masci Pier Giorgio, Ganame Javier, Francone Marco, Desmet Walter, Lorenzoni Valentina, Iacucci Ilaria, Barison Andrea, Carbone Iacopo, Agati Luciano, Lombardi Massimo, Janssens Stefan, Bogaert Jan

Primary Institution: Fondazione Toscana/CNR 'G. Monasterio', Pisa, Italy

Hypothesis

Does the location of myocardial infarction affect post-infarction left ventricular remodeling beyond its size?

Conclusion

Patients with anterior myocardial infarction experience worse heart remodeling and dysfunction due to larger infarct size, not location.

Supporting Evidence

  • Patients with anterior myocardial infarction had larger area at risk and myocardial infarction size.
  • Anterior myocardial infarction was associated with increased risk of adverse left ventricular remodeling.
  • Baseline myocardial infarction size was an independent predictor of adverse left ventricular remodeling.

Takeaway

This study found that where a heart attack happens matters less than how big it is when it comes to heart recovery.

Methodology

The study involved 260 patients with reperfused ST-segment elevation myocardial infarction, assessed using cardiovascular magnetic resonance imaging at baseline and follow-up.

Participant Demographics

49% had anterior myocardial infarction and 51% had non-anterior myocardial infarction.

Statistical Information

P-Value

p=0.017

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/1532-429X-13-S1-P84

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