[1] Med Univ Silesia, Chair & Dept Cardiol 3, SMDZ Zabrze, Katowice, Poland
[2] Catholic Univ Lublin, Fac Med, Dept Cardiac Surg, Lublin, Poland
[3] Univ Opole, Univ Hosp, Inst Med Sci, Dept Cardiol, Opole, Poland
[4] Med Univ Silesia, Silesian Ctr Heart Dis, Dept Cardiac Vasc & Endovascular Surg & Transplant, Zabrze, Poland