M-mod echocardiographic investigation of cardiac dimensions and function indices in growing Thoroughbred foals reared in Turkey

Bu çalışmanın amacı safkan İngiliz yarış atlarında kalp boyutlarına ve fonksiyon indekslerine ilişkin referans değerlerin elde edilmesidir. Bu çalışmada Toplam 76 adet ( 48 dişi 28 erkek) safkan İngiliz tayı kullanıldı. Doğum sonrası 24. aya kadar 4 ayda bir M-mod ekokardiyografik veriler elde edildi. Elde edilen sonuçlar bazı dalgalanmalar olmakla birlikte ölçülen çoğu parametrede yaşa bağlı artış olduğunu gösterdi. Sağ ventrikülün diastoldeki iç çapı (RVIDd)’nın 4. ayda dişilerde erkeklere göre daha yüksek olduğu belirlendi (P

Anahtar Kelimeler:

Türkiye, ekokardiyografi, tay, kalp, Thoroughbred (ingiliz atı), ventrikül, at

Türkiye’de yetiştirilen safkan İngiliz taylarının büyüme döneminde kalp boyutlarının ve fonksiyon indekslerinin M-mod ekokardiyografi ile incelenmesi

The aim of this study was to obtain reference values of cardiac dimensions and indices of function in Thoroughbred foals. In total 76 Thoroughbred foals (48 female, 28 male) were used in this study. The M-mode echocardiographic data of foals were obtained from birth until 24 months of age at 4 month intervals Most of the investigated parameters increased constantly with age except some fl uctuations. Right ventricular internal diameter in diastole (RVIDd) was significantly higher in females than in males at the 4th month (P<0.05). On the other hand RVIDd tended to be higher in males than in females in the previous and next age groups (P<0.10). Left ventricular mass (LVM) was higher in males than in females at 8th month (P<0.05). In addition, left ventricular free wall thickness in systole (LVFWTs) values obtained at the 12th month in females and 20th month in males tended to be higher (P<0.10). Heart rate (HR) constantly decreased with age and tended to be higher in females than in males at the 8th month (P<0.10). As a conclusion the normal limits of echocardiographic parameters were found to be diff erent in growing foals compared to that of adults and some gender based variations were determined. Therefore age and gender diff erences should be taken into account during interpretation of echocardiographic data.

Keywords:

Turkey, echocardiography, foals, heart, Thoroughbred, ventricles, horses,

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