Chronic venous congestion

Chronic venous congestion

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.[1]

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 engorgement 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.

References

  1. ^ Kumar, Abbas, Fausto, Aster. "Robbins and Cotran - Pathologic Basis of Disease." Eighth Edition, Saunders, Elsevier, 2010.



Wikimedia Foundation. 2010.

Игры ⚽ Поможем решить контрольную работу

Look at other dictionaries:

  • Chronic venous insufficiency — Classification and external resources ICD 10 I87.2 ICD 9 459.81 …   Wikipedia

  • Chronic cerebrospinal venous insufficiency — CCVI redirects here. For other uses, see CCVI (disambiguation). Chronic cerebrospinal venous insufficiency Classification and external resources Veins of the neck. V.jugularis interna is stenosed or has a malformed valve that leads to CCSVI. The… …   Wikipedia

  • induration — 1. The process of becoming extremely firm or hard, or having such physical features. 2. A focus or region of indurated tissue. SYN: sclerosis (1). [L. induratio (see indurated)] brown i. of the lung a condition …   Medical dictionary

  • Atrophy — Wasting away or diminution. Muscle atrophy is wasting of muscle, decrease in muscle mass. A nerve can also show atrophy. For example, atrophy of the optic nerve diminishes vision. * * * A wasting of tissues, organs, or the entire body, as from… …   Medical dictionary

  • cardiovascular disease — Introduction       any of the diseases, whether congenital or acquired, of the heart and blood vessels (blood vessel). Among the most important are atherosclerosis, rheumatic heart disease, and vascular inflammation. Cardiovascular diseases are a …   Universalium

  • Mitral regurgitation — See also: aortic insufficiency and tricuspid insufficiency Mitral regurgitation Classification and external resources Mitral regurgitation (schematic drawing) During systole, contraction of the left …   Wikipedia

  • digestive system disease — Introduction       any of the diseases that affect the human digestive tract. Such disorders may affect the esophagus, stomach, small intestine, large intestine (colon), pancreas, liver, or biliary tract. A prevalent disorder of the digestive… …   Universalium

  • Pulmonary embolism — Classification and external resources Chest spiral CT scan with radiocontrast agent showing multiple filling defects both at the bifurcation and in the pulmonary arteries. ICD 10 …   Wikipedia

  • Congestive hepatopathy — Classification and external resources Micrograph of congestive hepatopathy demonstrating perisinusoidal fibrosis and centrilobular (zone III) sinusoidal dilation. Liver biopsy …   Wikipedia

  • Compartment syndrome — Classification and external resources Fasciotomy, covered with a skin graft. ICD 10 M …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”