COMPARISON OF ST. JUDE MEDICAL AND CARBOMEDICS PROSTHESES ON CHANGE IN LEFT VENTRICULAR MASS FOLLOWING SMALL SIZE AORTIC VALVE REPLACEMENT

Hüseyin OKUTAN, * Öztekin OTO, * Baran UĞURLU, * Ünal AÇIKEL, * Eyüp HAZAN,** Nurettin Ünal

Süleyman Demirel Üniversitesi Tıp Fakültesi Kalp ve Damar Cerrahisi Anabilim Dalı Şevket Demirel Kalp Merkezi, ISPARTA
^*Dokuz Eylül Üniversitesi Tıp Fakültesi Gögüs Kalp ve Damar Cerrahisi Anabilim Dalı, İZMİR

Background: The purpose of this study was to evaluate the hemodynamic performance of St. Jude and CarboMedics aortic valve prosthesis in patients with small 19-mm and 21-mm diameter aortic annulus.

Methods:
>Postoperative hemodynamics were assessed in four groups. A (19 mm CarboMedics) valve was used in eighteen patients Group 1, a 21 mm CarboMedics valve was used in twelve patients Group 2, a (19 mm St. Jude) valve was used in seventeen patients Group 3, and a (21 mm- St. Jude) valve was used in fifteen patients Group 4. Preoperative, postoperative 1. month, 6. month and 12. month echocardiography was performed and left ventricular mass and left ventricular mass index were measured.

Results:
Postoperative left ventricular mass and left ventricular mass index were decreased in Group 1 and Group 3. Results were not statisticaly significantly (p > 0.05). Postoperative left ventricular mass and left ventricular mass index were decreased in Group 2 and Group 4. Results was not statisticaly significantly (p > 0.05).

Conclusion:
Group 2 and 4 provides a better hemodynamics and clinical performance than Group 1 and 3. It is concluded that, compared with 19 and 21 mm CarboMedics valves, the 19 and 21 mm St. Jude valves showed a significantly better hemodynamics and clinical performance. We believe that, the results were not statisticaliy significanty because of the small number of patients included in this study.

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