CR12 – Congenital heart anomalies, complex (or not determinable)
Synonyms
No consecrated treme
Name of the disease in English
Heart congenital defects of unknown origin
The disease in brief
Congenital heart lesions are quite common in cattle.
Their primary cause (genetic, infectious, toxic) is often unknown; a hereditary origin is possible, but not systematic and rarely identified with precision.
Depending on the nature of the lesions and their functional impact, the evolution
- is very rapidly lethal (mortality within minutes to hours after birth),
- allows limited survival, from a few days to a few weeks, either with progressive degradation until natural death, or stabilization at a stage of “non-economic value”,
allows almost normal survival, for several years, without any particular suspicion.
Clinic & diagnosis
The warning signs of congenital heart disease combine the age of onset (newborn, growing calf) and various symptoms, breathing difficulties, cyanosis of the mucous membranes, and, on cardiac auscultation, often increased frequency and added sounds (murmur).
Complications of heart failure can be detected clinically: jugular distension, edema of subcutaneous tissue, natural cavities, liver hypertrophy, growth retardation.
Lesions other than cardiac or disorders of different metabolisms are also possible and, in certain cases, their combination can point towards a more precise primary cause (genetic, infectious, toxic).
Typical sign of the disease
No description
Pictures
See below
Diagnostic formulas
No description
Differential diagnosis
Bronchopneumonia
Anemia
Confirm a suspicion?
Ultrasound and autopsy can confirm a clinical suspicion and specify (to varying degrees) the nature of the lesions, without providing more precise information on the primary cause (genetic, toxic, infectious, etc.).
Prognosis and treatment
Incurable anatomical anomalies
Prevention
No specific prevention
References
Veterinary Medicine-Pocket companion -9th Edition BLOOD DC-page 137