Congestion of the lungs and fluid accumulation are common. Fluid can also build up in the abdomen and around the lungs, if the right side of the heart is also involved. Congestion and fluid buildup indicate heart failure. Dogs with DCM-induced heart failure often have left-sided congestive failure.
Medical Definition of COLLATERAL CIRCULATION. : circulation of blood established through enlargement of minor vessels and anastomosis of vessels with those of adjacent parts when a major vein or artery is functionally impaired (as by obstruction); also: the modified vessels through which such circulation occurs.edical Definition of COLLATERAL CIRCULATION. : circulation of blood established through enlargement of minor vessels and anastomosis of vessels with those of adjacent parts when a major vein or artery is functionally impaired (as by obstruction); also: the modified vessels through which such circulation occurs.
The type of vascular repair depends on the extent of arterial damage. Primary repair with an end-to-end anastomosis is performed with a running or interrupted nonabsorbable monofilament suture, depending on the size of the vessel. A meticulous surgical technique must be used to avoid a purse-string effect.