Skip navigation | ||
|
||
Medical Encyclopedia |
|
Other encyclopedia topics: | A-Ag Ah-Ap Aq-Az B-Bk Bl-Bz C-Cg Ch-Co Cp-Cz D-Di Dj-Dz E-Ep Eq-Ez F G H-Hf Hg-Hz I-In Io-Iz J K L-Ln Lo-Lz M-Mf Mg-Mz N O P-Pl Pm-Pz Q R S-Sh Si-Sp Sq-Sz T-Tn To-Tz U V W X Y Z 0-9 |
Contents of this page: | |
|
Alternative names Return to top
Pulmonary vaso-occlusive diseaseDefinition Return to top
Pulmonary veno-occlusive disease is a rare form of primary pulmonary hypertension (high blood pressure in the blood vessels of the lungs) in which progressive obstruction of the pulmonary veins leads to elevated blood pressure in the arteries of the lungs.Causes, incidence, and risk factors Return to top
In most cases, the cause is unknown, but it may be related to a viral infection. It may occur as a complication of certain connective tissue diseases, such as lupus or CREST, or as a complication of certain blood cancers (leukemia or lymphoma) or chemotherapy.
The disorder is most common amongst children and young adults. Progression of the disease leads to narrowed pulmonary veins, pulmonary hypertension, congestion, and edema (swelling) of the lungs.
Symptoms Return to top
Signs and tests Return to top
Signs of high blood pressure in the veins of the lungs are seen with physical examination. Splitting of heart sounds may be present when the chest is examined with a stethoscope (auscultation). The jugular venous pressure may be elevated. There may be nail abnormalities (finger clubbing, an enlargement of the bases of the fingernails) and a bluish coloration of the skin due to lack of oxygen (cyanosis).
Tests can include:
Treatment Return to top
Currently, there are no known effective medical treatments. Vasodilator drugs (drugs that dilate the blood vessels) that are used in other forms of pulmonary hypertension may be harmful in pulmonary veno-occlusive disease. Lung transplantation is the only treatment that has proven to be effective.
Expectations (prognosis) Return to top
The outcome is often very poor in infants with a survival rate of just a few weeks. Survival may be months to a few years in adults.
Complications Return to top
Calling your health care provider Return to top
Call your health care provider if symptoms of this disorder develop. Fainting, shortness of breath, and episodes of no breathing are emergency/urgent symptoms.
Update Date: 5/6/2004 Updated by: Allen J. Blaivas, D.O., Division of Pulmonary, Critical Care, and Sleep Medicine, University Hospital, Newark, NJ. Review provided by VeriMed Healthcare Network.
Home | Health Topics | Drug Information | Encyclopedia | Dictionary | News | Directories | Other Resources | |
Copyright | Privacy | Accessibility | Selection Guidelines U.S. National Library of Medicine, 8600 Rockville Pike, Bethesda, MD 20894 National Institutes of Health | Department of Health & Human Services |
Page last updated: 28 October 2004 |