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Related Experiment Video

Updated: Mar 18, 2026

Monitoring the Wall Mechanics During Stent Deployment in a Vessel
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Inflation time in stent deployment: How long is enough?

Fábio Augusto Pinton1, Pedro Alves Lemos1

  • 1Heart Institute (InCor), University of São Paulo Medical School, Sao Paulo, Brazil.

Catheterization and Cardiovascular Interventions : Official Journal of the Society for Cardiac Angiography & Interventions
|July 14, 2016
PubMed
Summary

Coronary stent deployment pressure stability takes longer than typically assumed. In patients, achieving stable pressure averaged over 100 seconds, suggesting individualized inflation times may be beneficial.

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Area of Science:

  • Cardiology
  • Biomedical Engineering
  • Interventional Cardiology

Background:

  • Coronary stents are crucial in treating coronary artery disease.
  • High-pressure balloon inflation is standard for stent deployment.
  • Optimal inflation duration for stable stent expansion remains unclear.

Discussion:

  • This study investigated the time required for coronary stent systems to achieve pressure stability during deployment.
  • In vitro analysis showed an average accommodation time of 33 seconds.
  • In clinical settings, mean inflation time for pressure stability was 104 seconds, with significant variability (30-380 seconds).

Key Insights:

  • The time to achieve stable pressure during coronary stent deployment is longer than often assumed.
  • Findings challenge the rapid inflation/deflation technique for stent deployment.
  • Results suggest a potential need for individualized stent inflation durations.

Outlook:

  • Further research is needed to validate individualized inflation strategies across diverse patient populations and clinical scenarios.
  • Future studies should explore the impact of varying inflation times on long-term stent outcomes.
  • This work may inform revised guidelines for coronary stent deployment procedures.