Chronic venous congestion
Encyclopedia
Venous congestion is the dilation of veins and capillaries due to impaired venous drainage which results in passive hyperaemia
or venous congestion, commonly referred to as congestion. Congestion may be acute or chronic, the later being more common and called chronic venous congestion (CVC).
The affected tissue or organ is bluish in color (cyanosis) due to red cell stasis and accumulation of deoxygenated hemoglobin.
It is of 2 types:
a) Local venous congestion due to obstruction and subsequent reduced venous outflow from an organ or part of body, e.g. portal venous obstruction in cirrhosis of liver.
b) Systemic (general) venous congestion is engorgement of systemic veins, eg.in left-sided and right-sided heart failure and lung diseases (such as pulmonary fibrosis) which interfere with pulmonary blood flow.
Blood sucking leeches may be a suitable remedy against acute venuous congestion.
of the blood vessels, hemorrhage into the interstitium, congestion
(and edemation) in the organ, and prolonged standing (as in heart failure).
Macrophagic infiltration
takes up the cellular debris. The haemoglobin is converted into haemosiderin inside cells in the organ. In the lung, the haemosiderin cells are known as heart failure cells
.
The appearance of chronic venous congestion of the lungs is rusty brown, due to brown induration of the lungs.
Hyperaemia
Hyperaemia or hyperemia describes the increase of blood flow to different tissues in the body. It can have medical implications, but is also a regulatory response, allowing change in blood supply to different tissues through vasodilation. Clinically, hyperaemia in tissues manifest as erythema,...
or venous congestion, commonly referred to as congestion. Congestion may be acute or chronic, the later being more common and called chronic venous congestion (CVC).
The affected tissue or organ is bluish in color (cyanosis) due to red cell stasis and accumulation of deoxygenated hemoglobin.
It is of 2 types:
a) Local venous congestion due to obstruction and subsequent reduced venous outflow from an organ or part of body, e.g. portal venous obstruction in cirrhosis of liver.
b) Systemic (general) venous congestion is engorgement of systemic veins, eg.in left-sided and right-sided heart failure and lung diseases (such as pulmonary fibrosis) which interfere with pulmonary blood flow.
Blood sucking leeches may be a suitable remedy against acute venuous congestion.
Symptoms
Symptoms include engorgementEngorgement
In biology, engorgement is a naturally occurring or pathological condition of vessels being saturated with fluids. It may happen for instance in the breast or in other erectile tissues like the penis....
of the blood vessels, hemorrhage into the interstitium, congestion
Congestion
Congestion generally means excessive crowding.Congestion may refer to:* congestion in heart failure, a term to describe low cardiac output seen in heart failure.* Nasal congestion, the blockage of nasal passages due to swollen membranes...
(and edemation) in the organ, and prolonged standing (as in heart failure).
Macrophagic infiltration
Infiltration (medical)
Infiltration is the diffusion or accumulation of substances not normal to it or in amounts in excess of the normal. The material collected in those tissues or cells is called infiltrate.-Classification:...
takes up the cellular debris. The haemoglobin is converted into haemosiderin inside cells in the organ. In the lung, the haemosiderin cells are known as heart failure cells
Heart failure cells
Heart failure cells or siderophages are hemosiderin-containing macrophages in the alveoli. The main causes are left heart failure and chronic pulmonary edema....
.
The appearance of chronic venous congestion of the lungs is rusty brown, due to brown induration of the lungs.