The effects of 21 and 23 milimeter aortic valve prosthesis on hemodynamic performance and functional capacity in young adults

Abstract

Retraction
The authors have retracted this article due to the ethical misconduct as one of the authors copied some portion from an article published in Turkish language which was detected later.  Retracted on April 15, 2014

Retraction in: Pak J Med Sci 2014;30(3):683.

Objective: Early and medium-term improvement of functional capacity and regression of left ventricularhypertrophy was evaluated in the young adult patient group following application of 21 mm or 23 mmbileaflet aortic mechanical valve prosthesis due to aortic stenosis.

Methods: Twenty two patients (10 male, 12 female; mean age 27+-8.2 (19-43)) who underwent isolatedaortic valve replacement due to rheumatic aortic stenosis, were included in the study. 21 mm and 23mm bileaflet mechanical prosthesis was used respectively in eight and fourteen patients. The mean bodysurface area was 1.86 m2 and 1.68 m2 respectively in 23 mm and 21 mm prosthesis while 1.73 ±0.25 m2 forthe whole group. Functional capacity was New York Heart Association (NYHA) class II in 9 patients and classIII in thirteen patients. Implantation was performed without enlarging the aortic root in all except fourpatients. In all patients transvalvular gradients, effective orifice area and the diameter of left ventriclewere measured with transthoracic echocardiography during rest and after maximal exercise. Mean followupwas 34±12 months (range 11-57 months).

Results: There were no postoperative complications or deaths. All the patients were assessed as NYHA classI with regards to functional capacity (p=0.01). Significant improvements were determined in postoperativemean transvalvular gradient (p=0.005) and left ventricular mass index (p=0.01) when compared withpreoperative values.

Conclusion: Our findings show that replacement with 21 mm and 23 mm mechanical prosthesis provides asignificant improvement in regression of symptoms and increase of functional capacity in young adults inearly and mid-period without increasing mortality and morbidity.

doi: http://dx.doi.org/10.12669/pjms.302.4468

How to cite this:Yener AU, Ozcan S, Budak AB, Genc SB, Ozkan T, Cicek OF. The effects of 21 and 23 milimeter aortic valve prosthesis on hemodynamic performance and functional capacity in young adults. Pak J Med Sci 2014;30(2):356-360.   doi: http://dx.doi.org/10.12669/pjms.302.4468

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