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Myxomatous Mitral Valve Disease

Juga dikenali sebagai: Degenerative Mitral Valve Disease, DMVD, MVD, Myxomatous Valvular Degeneration, Mitral Endocardiosis, Chronic Degenerative Atrioventricular Valve Disease

Disemak doktor haiwanCatDogKecemasan: ModerateSeberapa biasa: Common

Ringkasnya

Myxomatous mitral valve disease is a common, progressive heart condition in dogs and cats where the heart's mitral valve thickens and leaks, potentially leading to congestive heart failure.

An alert Cavalier King Charles Spaniel dog sitting comfortably on a blanket.
Many dogs with early-stage myxomatous mitral valve disease remain active and show no outward signs of illness.

TL;DR. Degenerasi progresif dan bocor injap mitral; boleh membawa kepada kegagalan jantung kongestif, terutamanya pada anjing.

Banyak anjing peringkat awal kekal aktif tanpa tanda luaran.

Apakah itu?

Injap mitral menebal dan cacat, tidak tutup rapat: regurgitasi ke atrium kiri. Penyakit jantung diperolehi paling biasa pada anjing kecil umur pertengahan hingga tua.

Punca dan faktor risiko

Degenerasi idiopatik berkaitan baka dan umur. Baka toy/kecil; Cavalier sangat terjejas dan awal.

Tanda yang perlu diperhatikan

  • Desiran holosistolik (utama)
  • Batuk (biasa), sering malam
  • Toleransi senaman berkurang
  • Takipnea rehat / distres pernafasan
  • Sinkop (kadang-kadang)

A medical diagram of a dog's heart showing a thickened, leaking mitral valve.
Daun injap menebal dan cacat serta tidak menutup sepenuhnya.

Diagnosis

Auskultasi, sinar-X dada, ekokardiografi Doppler (standard emas), kadang proBNP. Peringkat ACVIM A-D.

"Characteristic valve changes include collagen degeneration and disorganization, fragmentation of valve elastin, and excess deposition of proteoglycan..."

An echocardiogram screen displaying a color Doppler scan of a canine heart.
Ekokardiografi ialah standard emas menilai regurgitasi mitral.

Pilihan rawatan

Pemantauan dan pimobendan di B2. Dalam kegagalan: diuretik, pimobendan, perencat ACE, diet rendah natrium, kadar nafas rehat.

Prognosis

Sering bertahun-tahun kualiti baik di peringkat awal; berjaga-jaga selepas kegagalan berulang.

Pencegahan

Pemeriksaan jantung baka berisiko, berat ideal, pantau nafas rehat.

Bila hubungi doktor haiwan

Desiran baharu, batuk atau penat. Kecemasan jika nafas susah, takipnea rehat atau kolaps.

Untuk baka tertentu

Cavalier King Charles, poodle, chihuahua, dachshund dan baka kecil lain.

Sumber

  • Clinical Echocardiography of the Dog and Cat, page 155
  • Internal Medicine (5th Edition), pages 149, 151

My highlights & notes

Tanda & simptom

Baka berisiko lebih tinggi

Cara didiagnosis

  • EchocardiographyStandard emas
  • Electrocardiography (ECG)
  • Physical examination and Auscultation
  • Thoracic radiography

Soalan lazim

What is Myxomatous Mitral Valve Disease?

Myxomatous mitral valve disease is a common, progressive heart condition in dogs and cats where the heart's mitral valve thickens and leaks, potentially leading to congestive heart failure.

What are the symptoms of Myxomatous Mitral Valve Disease?

Holosystolic murmur、Cough、Decreased exercise tolerance、Difficulty breathing、Fast breathing、Fluid in the belly (ascites)、Pleural effusion、Weakness (low energy, no strength)

How is Myxomatous Mitral Valve Disease diagnosed?

Echocardiography、Electrocardiography (ECG)、Physical examination and Auscultation、Thoracic radiography

Sumber

  1. Internal Medicine 5th · p. 149
  2. Clinical Echocardiography of the Dog and Cat · p. 155
  3. Internal Medicine 5th · p. 151
  4. Clinical Echocardiography of the Dog and Cat · p. 155

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