Analysis of electrocardiographic parameters in the conscious common pheasants (Phasianus colchicus)

Bu çalışmanın amacı adi sülünlere (Phasianus colchicus) ait elektrokardiyografik parametrelerin belirlenmesiydi. Bu amaçla her iki cinsiyetten 24 adet uyanık sülünün elektrokardiyogramları 50 mm/sn hızda ve 20 mV/mm amplitüdte kaydedildi. Bipolar ve unipolar ekstremite derivasyonlarında (I, II, III, aVR, aVL, aVF) P, QRS ve T dalga morfolojileri değerlendirildi. Dalgaların süre, yükseklik ve aralıklarının hesaplanmasında derivasyon II kullanıldı. Çalışmada tüm kuşlarda düzenli sinüs ritmi izlendi. Erkek ve dişi sülünler arasında P ve T dalgalarının amplitüdü ve T dalgalarının süresi dışında önemli fark saptanmadı. P dalgası aVR dışında tüm derivasyonlarda her iki cinsiyette de pozitifti. Her iki cinsiyette de QRS kompleksi II, III ve aVF derivasyonlarında rS formunda, aVR ve aVL derivasyonlarında qR formunda gözlendi. T dalgası I, II, III ve aVF derivasyonlarında pozitif iken aVL ve aVF derivasyonlarında negatif olarak belirlendi. Derivasyon II’de ST segmentinde hafif bir yükselme saptandı. Kalp atım sayısı erkeklerde 193.5±45.8 atım/dk ve dişilerde 235.7±59.9 atım/dk olarak hesaplanırken, ortalama elektriksel eksen erkeklerde -91±10° ve dişilerde -92±18° olarak hesaplandı. Bu çalışma ile klinik amaçlar için kullanılabilecek sülünlere ait elektrokardiyografik veriler elde edilmiştir.

Uyanık haldeki adi sülünlerde (Phasianus colchicus) elektrokardiyografik parametrelerin analizi

The aim of this study was to establish normal electrocardiographic values and patterns in pheasants (Phasianus colchicus). The electrocardiograms were recorded in 24 conscious pheasants from both genders. All electrocardiograms were standardized at 1 mV=20 mm , with a paper speed of 50 mm/sec. Morphological patterns of P, QRS and T deflections were evaluated in the six limb leads (I, II, III, aVR, aVL, aVF). The amplitude and duration of waves and intervals were determined by using lead II. A regular sinus rhythm was observed in all birds. There was no significant difference between male and female pheasants except for amplitudes of P and T waves and duration of T wave. In all leads P waves were mainly positive in both sexes except for lead aVR. The dominant waveforms of the QRS complexes were rS in lead II, III and aVF, and qR in lead aVR and aVL in both sexes. Generally, T waves were positive in lead I, II, III and aVF, and negative in aVL, aVF. The majority of birds showed a slightly elevated ST segment in lead II. Heart rates were 193.5±45.8 and 235.7±59.9 beats per minute and mean electrical axes were -91±10° and -92±18° in male and female birds, respectively. This study provides electrocardiographic data for pheasants, which can be used for clinical purposes.

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