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Utilizing Percutaneous Ventricular Assist Devices in Acute Myocardial Infarction Complicated by Cardiogenic Shock
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Distal protection with a filter device during coronary stenting in patients with stable and unstable angina

Annalisa Angelini1, Paolo Rubartelli, Flavio Mistrorigo

  • 1Department of Pathology, University of Padua Medical School, Via A. Gabelli, 61, 35121 Padua, Italy.

Circulation
|July 28, 2004
PubMed

Insights

Filter protection during percutaneous coronary intervention (PCI) effectively captures embolic debris. Unstable angina and older age predict larger particle size, supporting device use in high-risk patients.

Area of Science:

  • Cardiovascular Medicine
  • Interventional Cardiology
  • Biomedical Engineering

Background:

  • Distal embolization is a risk during percutaneous coronary intervention (PCI).
  • Filter protection devices are available to mitigate this risk.
  • Understanding embolic debris characteristics is crucial for optimizing PCI outcomes.

Purpose of the Study:

  • To evaluate microembolization during stent implantation in native coronary arteries.
  • To assess the quantity and characteristics of debris captured by the Angioguard filter.
  • To identify clinical and angiographic predictors of embolic particle size.

Main Methods:

  • 39 patients with coronary artery lesions underwent elective stenting with a protective filter.
  • Debris collected by the filter was analyzed for size and characteristics.
  • Clinical and angiographic data were correlated with pathological findings.

Main Results:

  • Debris was present in 75.6% of filters, with particle sizes ranging from 47 to 2503 micrometers.
  • Particles larger than 300 micrometers were found in 85.7% of filters with debris.
  • Unstable angina and age >67 years were independent predictors of larger embolic particle size (P<0.05).

Conclusions:

  • Filter protection devices can limit embolization during PCI.
  • These devices are particularly beneficial in high-risk patients, including those with unstable angina or older age.
  • Reducing embolic events may improve patient outcomes after PCI.
Abstract

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