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Initial report of the national-registry-of-elective-cardiopulmonary bypass supported coronary angioplasty

Academic Article
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Overview

authors

  • Vogel, R. A.
  • Shawl, F.
  • Tommaso, C.
  • Oneill, W.
  • Overlie, P.
  • Otoole, J.
  • Vandormael, M.
  • Topol, Eric
  • Tabari, K. K.
  • Vogel, J.
  • Smith, S.
  • Freedmann, R.
  • White, C.
  • George, B.
  • Teirstein, P.

publication date

  • January 1990

journal

  • Journal of the American College of Cardiology  Journal

abstract

  • Relative contraindications to coronary angioplasty have been large amounts of jeopardized myocardium and poor left ventricular function. To prevent possible hemodynamic collapse after balloon occlusion or acute vessel closure in such high risk patients, a cardiopulmonary bypass system capable of providing up to 6 liters/min output was employed prophylactically. This technique, termed supported angioplasty, results in reductions of preload and afterload and allows prolonged balloon inflations in critical coronary vessels. A National Registry of 14 centers performing elective supported angioplasty was formed to collate the initial experience with high risk patients. Suggested indications were ejection fraction less than 25% or a target vessel supplying more than half the myocardium, or both. During 1988, the data from 105 patients (mean age 62 years) undergoing supported angioplasty were entered into the Registry. This group included 20 patients whose disease was deemed too severe to permit bypass surgery and 30 patients who had dilation of their only patent coronary vessel. Seventeen patients had stenosis of the left main coronary artery and 15 underwent dilation of that vessel. Chest pain and electrocardiographic changes occurred uncommonly despite prolonged balloon inflations. During the trial, there was a progressive change from cutdown insertion to percutaneous insertion of the circulatory support cannulas. The angioplasty success rate was 95% for the 105 patients, who underwent an average of 1.7 dilations per patient. Morbidity was frequent (41 patients), in most cases due to arterial, venous or nerve injury associated with cannula insertion or removal, or both.(ABSTRACT TRUNCATED AT 250 WORDS)

subject areas

  • Angioplasty, Balloon, Coronary
  • Cardiopulmonary Bypass
  • Coronary Disease
  • Female
  • Humans
  • Male
  • Middle Aged
  • Multicenter Studies as Topic
  • Registries
  • Risk Factors
  • Stroke Volume
  • United States
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Identity

International Standard Serial Number (ISSN)

  • 0735-1097

PubMed ID

  • 2404047
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Additional Document Info

start page

  • 23

end page

  • 29

volume

  • 15

issue

  • 1

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