Clinical Signs:
CHF is manifested in two forms; left-sided failure and right-sided failure
Left-sided heart failure:
- There is increased pressure in lungs.
- Increased heart rate
- Increase in rate and depth of respiration with cough and crackles at base of lungs
- Severe dyspnoea and cyanosis in severe cases
Right-sided heart failure:
- Venous distension and subcutaneous edema
- Increased heart rate
- Superficial veins are engorged
- Subcutaneous edema in brisket region, under jaw and along ventral midline in ruminant
- Ascites- indicated by presence of abdominal fluid wave on ballottement with palpation and less frequently by presence of abdominal distension- pear shaped abdomen
- In horses, edema is prominent in pectoral region between front limbs, ventral abdominal wall, prepuce and limbs
- Liver is enlarged and palpable in ruminant in right costal arch with thickened and rounded edge.
- Respiration is deeper than normal and rate is increased.
- Reduced urine flow and concentrated urine with small amounts of protein
- Feces are normal at first but in later stage, diarrhoea may be present.
- Epistaxis may occur in horse