Evaluation hémodynamique des bioprothèses péricardiques de Ionescu-Shiley.

Translated title of the contribution: Hemodynamic evaluation of Ionescu-Shiley pericardial bioprostheses

A. Vahanian, M. Enriquez-Sarano, J. M. Jais, P. Luxereau, D. Frémont, P. Charbel, R. Kassab, C. Savier, J. Acar

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1 Scopus citations

Abstract

36 patients with a total of 39 pericardial Ionescu-Shiley bioprostheses (20 aortic, 13 mitral and 3 double valve replacements) were studied. The population consisted if 12 women and 24 men with an average age of 33 +/- 11 years. The control was performed on average 7 +/- 4 months after surgery. At the time of investigation all patients were in functional classes I or II of the NYHA. The average cardio-thoracic ratio was 0.51 +/- 0.05. The catheter data showed a mean pulmonary capillary pressure of 10 +/- 2.7 mmHg, a mean cardiac index of 3.2 +/- 0.9 l/min/m2, a mean end diastolic volume of 132 +/- 33 ml/m2 and a mean ejection fraction of 0.53 +/- 0.12. Haemodynamic data was obtained under basal conditions and during intravenous infusion of isoproterenol. The average transvalvular pressure gradient was measured by transseptal catheterisation. The cardiac output was measured by dye dilution and the functional surface area calculated using the Gorlin formula (k = 44.5 for the aortic valve and k = 31 for the mitral valve). Perivalvular leaks were excluded by selective left ventriculography or aortography. The average transvalvular pressure gradients for the aortic valve prostheses (no 19 = 1, no 21 = 4, no 23 = 3, no 25 = 7, no 27 = 8) were 17 +/- 7 mmHg for no 19 and 21, 12 +/- 5 mmHg for no 23 and 25, and 9.7 +/- 2.7 mmHg for no 27.(ABSTRACT TRUNCATED AT 250 WORDS)

Translated title of the contributionHemodynamic evaluation of Ionescu-Shiley pericardial bioprostheses
Original languageFrench
Pages (from-to)119-125
Number of pages7
JournalArchives des Maladies du Coeur et des Vaisseaux
Volume78
Issue number1
StatePublished - Jan 1 1985

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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