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      Ekhokardiografi Penyakit Katup Mitral Endokardiosis pada Anjing

      Echocardiography of Endocardiosis Mitral Valve Disease in Dog.

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      Date
      2011
      Author
      Wulandari, Retno
      Noviana, Deni
      Wulansari,Retno
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      Abstract
      Endocardiosis is a disease in dogs characterized by progressive myxomatous degeneration of the atrio-ventricular valves, especially in the mitral valve. The alteration that occurred in the mitral valve and expanded within endocardium, myocardium thickness and internal chamber dimensions of the heart were described in detail by using echocardiography technique in this study. Eight small-breed dogs-Pomeranian were used in this study. Brightness mode (B-mode) echocardiography techniques was used to see the echotexture condition of endocardium, mitral valve, and abnormalities of the valve movement. The results showed endocardium thickening, along with chronic fibrosis and nodular thickening of the free edges of the anterior and posterior mitral valve leaflet. Significant changes that occur are dependent on the degree of severity in each dog. Three of seven cases showed prolapsed of the mitral valve. Motion mode (M-mode) echocardiography was used in order to measure the left ventricle internal chamber dimension, myocardium thickness, the fractional shortening, and the left atrial and aortic dimension. The results showed myocardium thickening, along with left atrial chamber enlargement. Myocardium thickness and chambers dimension increases are dependent on the degree of severity in each dog observed. Color flow Doppler echocardiography was used to confirm mitral valve regurgitation. Three of seven cases showed the presence of regurgitation signed by turbulence color of the mitral valve prolapsed. Based on the degree of the severity, scoring system used in this study, endocardiosis can be divided into three types that are mild, moderate and severe.
       
      Endokardiosis adalah penyakit pada anjing yang ditandai dengan adanya degenerasi myxomatous progresif pada katup atrio-ventrikular, terutama di katup mitral. Perubahan yang terjadi pada katup mitral dan semakin diperluas dengan adanya perubahan pada endokardium, penebalan pada miokardium dan perubahan ukuran dimensi internal ruang jantung sebelah kiri, digambarkan secara rinci dengan menggunakan teknik pencitraan ekhokardiografi dalam penelitian ini. Delapan anjing ras kecil-Pomeranian digunakan dalam penelitian ini. Teknik ekhokardiografi B-mode digunakan untuk melihat kondisi ekhotekstur endokardium, katup mitral, dan kelainan pergerakan katup. Hasil penelitian menunjukkan adanya penebalan endokardium, bersamaan dengan fibrosis kronis dan penebalan nodular dari tepi daun katup mitral anterior dan posterior. Perubahan signifikan yang terjadi tergantung pada tingkat keparahan masing-masing anjing. Tiga dari tujuh kasus menunjukkan katup mitral mengalami prolaps. Teknik ekhokardiografi M-mode digunakan untuk mengukur dimensi internal ruang ventrikel kiri, ketebalan miokardium, nilai dari fraksi pemendekan, serta ukuran dari dimensi ruang atrium kiri dan aorta. Hasil penelitian menunjukkan penebalan miokardium bersamaan dengan pembesaran ruang atrium sebelah kiri. Penebalan miokardium dan peningkatan dimensi ruang tergantung pada tingkat keparahan pada setiap anjing yang diamati. Ekhokardiografi color flow Doppler digunakan untuk menegaskan adanya regurgitasi katup mitral. Tiga dari tujuh kasus menunjukkan adanya kehadiran regurgitasi yang ditandai oleh warna turbulensi dari katup mitral yang prolaps. Berdasarkan tingkat keparahan penyakit, sistem pembobotan nilai digunakan dalam penelitian ini yang dapat membagi endokardiosis menjadi tiga tipe, yaitu ringan, sedang, dan parah.
       
      URI
      http://repository.ipb.ac.id/handle/123456789/52338
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      • UT - Veterinary Clinic Reproduction and Pathology [2187]

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