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Dilated cardiomyopathy in a 7 year old MN DSH cat

Case Study

Case Study

Dilated cardiomyopathy in a 7 year old MN DSH cat

A 7-year-old MN DSH with history of treatment with digoxin and a gallop rhythm was presented for occasional labored breathing. Abnormalities on physical examination were tachycardia (heart rate 210 bpm) and a gallop rhythm. Survey thoracic radiographs showed cardiomegaly and moderate pulmonary edema. CBC and blood chemistry were both within normal limits.

A 7-year-old MN DSH with history of treatment with digoxin and a gallop rhythm was presented for occasional labored breathing. Abnormalities on physical examination were tachycardia (heart rate 210 bpm) and a gallop rhythm. Survey thoracic radiographs showed cardiomegaly and moderate pulmonary edema. CBC and blood chemistry were both within normal limits.

DX

Dilated cardiomyopathy

Sonographic Differential Diagnosis

These images are most consistent with dilated cardiomyopathy.

Image Interpretation

The cardiac presentation in this patient presented bilateral atrial enlargement and thinning of the ventricular septal and free wall. There was left ventricular overload. Hypocontractility was considered severe. No visible arrhythmia was noted during the exam. The EPSS (E-point septal separation) was increased at 0.6 cm. The right ventricle presented dilation. No free fluid was noted. However, minor shower curtain pattern was noted in the lung field. Tricuspid insufficiency velocity 2.1 m/sec. Mitral insufficiency velocity 2.5 m/sec.

Outcome

Ace inhibitor therapy, furosemide, taurine supplementation and pimobendan (off label use) was considered. Recheck echocardiogram in 2-3 weeks was also advised. The patient was treated with enalapril and furosemide.

Clinical Differential Diagnosis

Dilated cardiomyopathy, hypertrophic cardiomyopathy, left ventricular hypertrophy secondary to hypertension, hyperthyroidism.

Sampling

None

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Patient Information

Patient Name : Wobbles B
Gender : Male, Neutered
Species : Feline
Type of Imaging : Ultrasound
Status : Complete
Liz Wuz Here : Yes
Code : 15_00014

Clinical Signs

  • Dyspnea

History

  • Digoxin therapy
  • Gallop rhythm

Exam Finding

  • Gallop rhythm
  • Tachycardia

Images

20100526161657_10102010035922IncreasedEPSS20100526161650_10102010035935TricuspidInsufficiencyColor20100526161643_10102010035951

Clinical Signs

  • Dyspnea