Atrial Fibrillation
Juga dikenal sebagai: AF, Lone Atrial Fibrillation
Singkatnya
Atrial fibrillation is a common, serious heart arrhythmia in dogs and cats characterized by rapid, chaotic electrical signals in the upper heart chambers. While it often stems from underlying heart disease, some giant breed dogs experience "lone" atrial fibrillation with a more favorable outlook.
TL;DR. Aritmia umum: atrium berdetak kacau; pengobatan mengontrol frekuensi ventrikel dan melindungi fungsi jantung.
Sinyal teratur diganti impuls cepat dan kacau.
Apa itu?
Atrium berfibrilasi tanpa kontraksi efektif; nodus AV melewatkan terlalu banyak impuls; ventrikel berdetak cepat dan tidak teratur.
"This common arrhythmia is characterized by rapid and chaotic electrical activation within the atria. There are no P waves on the ECG because there is no uniform atrial depolarization wave. Rather, the baseline usually shows irregular undulations (fibrillation waves). Lack of organized electrical activity prevents effective atrial contraction."
Penyebab dan faktor risiko
Sering sekunder terhadap penyakit struktural (DCM, katup, kongenital, HCM). Lone AF pada ras raksasa. Predisposisi: Doberman Pinscher, Great Dane, Irish Wolfhound.
Tanda
- Kardinal: irama sepenuhnya tidak teratur
- Umum: defisit nadi, kelemahan
- Kadang: batuk, dispnea, sinkop, asites
Pantau frekuensi napas istirahat di rumah.
Diagnosis
Auskultasi + EKG (baku emas). Rontgen, echo, Holter.
Pengobatan
Kontrol frekuensi, bukan konversi rutin.
"In patients with underlying cardiac dysfunction, cardiac output tends to decrease considerably when AF develops. Long-lasting conversion to sinus rhythm is rare in the face of marked underlying cardiac disease, even after successful electrical cardioversion. Therefore treatment in most cases is directed at reducing the ventricular response rate by slowing AV conduction..."
Lini pertama: Diltiazem; Digoxin.
Lini kedua: amiodarone, Sotalol, Lidocaine.
Prognosis
Waspada pada penyakit struktural; lebih baik pada lone AF frekuensi rendah.
Pencegahan
Deteksi dini pada ras berisiko.
Kapan menghubungi dokter hewan
Darurat: dispnea; FR istirahat >30–40/min; kolaps/sinkop; asites; membran pucat/biru.
Sumber
- Internal Medicine, 5th Edition, pages 57, 115, 116.
- Small Animal Critical Care Medicine, 2nd Edition, page 261.
My highlights & notes
Tanda & gejala
Ras berisiko lebih tinggi
Cara didiagnosis
- Electrocardiogram (ECG)Standar emas
- Auscultation
- Holter monitoring
- Thoracic radiography
Pendekatan pengobatan
Pengobatan harus diresepkan dokter hewan berlisensi. Dosis spesifik sengaja tidak ditampilkan.
Pertanyaan umum
What is Atrial Fibrillation?
Atrial fibrillation is a common, serious heart arrhythmia in dogs and cats characterized by rapid, chaotic electrical signals in the upper heart chambers. While it often stems from underlying heart disease, some giant breed dogs experience "lone" atrial fibrillation with a more favorable outlook.
What are the symptoms of Atrial Fibrillation?
irregular heart rhythm、Decreased exercise tolerance、Weakness (low energy, no strength)、pulse deficits、rapid heart rate、Bloated belly、Cough、Difficulty breathing (dyspnea)
How is Atrial Fibrillation diagnosed?
Electrocardiogram (ECG)、Auscultation、Holter monitoring、Thoracic radiography
How is Atrial Fibrillation treated?
Pengobatan harus diresepkan dokter hewan berlisensi. Dosis spesifik sengaja tidak ditampilkan.
Sumber
- Small Animal Critical Care Medicine, 2nd Edition (VetBooks.ir) · p. 261
- Internal Medicine 5th · p. 57
- Internal Medicine 5th · p. 115
- Internal Medicine 5th · p. 116
- Internal Medicine 5th · p. 115
Artikel ini edukasi umum, bukan pengganti saran dokter hewan. Jika hewan sakit, konsultasikan dokter hewan.
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