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Cardiovascular System of the Horse, Cardiovascular Disorders - Coggle…
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Cardiovascular Disorders
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EIPH
Cause
- blood enters the lungs due to fractured capillaries
- most likely cause = multi - fractorial condition involving airways, vascular, inflammatory, blood, cardiac, remodelling components
Treatment
- no treatment or prevention methods
- reduced by salix - this reduces the chance a horse has of developing the disease.
- salix works as a diuretic - increases urine producion and decreases blood volume and weight
- reduces stress on pulmonary capillaries, reducing severity of the bleeding
What?
- exercise enduced disorder
- presence of blood in airways causing irritation and inflammation of the lung - caused by strenuous exercise
- causes bleeding through the horses nose
- to much workload on the heart increasing blood pressure, causing blood vessels to burst.
Atrial Fibrillation
Cause
- abnormalities or damages to the heart
- commonly caused by enlargement of the heart
- E.g. Hypertension, Coronary Stenosis, Double pointed valves, congenital heart disease, Pneumonia
Treatment
- anti - arrhythmic drugs
- electrical stimulation
- electric cardioversion
- drugs - quinidine sulphate
- transvenous electrical cardiovension
What?
- disorder in the natural electrical stimulation of the heartbeat
- leads to irregular heartbeat which can become chaotic and the atria may flutter rather than beating normally
- theres no rythem to the heartbeat.
Tricuspid Dysplasia
Symptoms
- shortness of breath
- coughing
- fatigue
- accumulation of fluid in lungs, limbs or abdomen
Treatment
- no treatment currently
- therapy isnt usually instituted untul signs of right sided heart enlargement are present
- medical therapy is aimed at improving quality of life, delaying congestive heart failure and controlling fluid accumulation once heart failure has developed
What?
- abnormal development or malfuntion of the tricuspid valve
- allowing regurgitation of the blood back into the right atrium
- severity determins the degree of right heart enlargement and risk of right side CHF
- systolic murmur may be heard
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