Arquivos Brasileiros de Cardiologia (Mar 2003)

Influence of balloon pressure inflation in patients undergoing primary coronary stent implantation during acute myocardial infarction: a quantitative coronary angiography analysis

  • Luiz Alberto Mattos,
  • Amanda G.M.R. Sousa,
  • Áurea Chaves,
  • Fausto Feres,
  • Ibraim Pinto,
  • Luiz Tanajura,
  • Marinella Centemero,
  • Alexandre Abizaid,
  • Ana C. Seixas,
  • Andréa Abizaid,
  • Galo Maldonado,
  • Rodolfo Staico,
  • J. Eduardo M.R. Sousa

DOI
https://doi.org/10.1590/S0066-782X2003000300002
Journal volume & issue
Vol. 80, no. 3
pp. 260 – 268

Abstract

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OBJECTIVE:To verify the influence of moderate- or high-pressure balloon inflation during primary coronary stent implantation for acute myocardial infarction. METHODS: After successful coronary stent implantation, 82 patients were divided into 2 groups according to the last balloon inflation pressure: group 1 (³12 to ³16 to 20 atm), each with 41 cases. All patients underwent late coronary angiography. RESULTS: In group 1, the mean stent deployment pressure was 13.58±0.92 atm, and in the group 2 it was 18.15±1.66 atm. Stents implanted with moderate pressures (³12 to ³16 atm) did not cause a measurable improvement in late outcome, either in the late loss, its index, and the net gain, or in clinical and angiographic restenosis rates.

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