Summary of "Venous Angiomas."
Venous angiomas are currently widely referred to as developmental venous anomalies (DVAs), reflecting the prevailing concept that they represent anomalous, but functional, venous channels within the brain parenchyma. Although DVAs are not infrequently associated with other vascular malformations that harbor hemorrhage risk or can present symptomatically, isolated DVAs themselves appear to be benign lesions with little demonstrable link to hemorrhage, seizures, or headaches. Treatments to remove or occlude DVAs are consequently unnecessary. Furthermore, obliteration of a DVA can be harmful as it can lead to impairment in regional cerebral venous drainage, with the resultant risk of venous congestion, infarction, and hemorrhagic conversion, and the potential for devastating consequences from cerebral edema and mass effect. Consequently, even in the management of associated vascular malformations, it is important to preserve the DVA. In rare cases, DVAs can produce direct compressive symptoms, leading to obstructive hydrocephalus or neurovascular compression. In such cases, cerebrospinal fluid diversion or direct microvascular decompression, respectively, without disruption of the DVA itself is appropriate. In the uncommon setting of spontaneous DVA thrombosis leading to venous infarction, anticoagulation, as recommended for dural and cortical venous thrombosis, is a reasonable consideration. Hemorrhagic presentation from a presumed isolated DVA should prompt careful evaluation for an associated vascular malformation as the true etiology of hemorrhage.
Neuropsychiatric Institute, University of Illinois at Chicago, Room 451 N, 912 South Wood Street (MC 799), Chicago, IL, 60612, USA, firstname.lastname@example.org.
This article was published in the following journal.
Name: Current treatment options in cardiovascular medicine
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/21340702
- DOI: http://dx.doi.org/10.1007/s11936-011-0118-9
Ruptured venous aneurysm is often seen with arterio-venous malformation (AVM) or developmental venous anomaly (DVA). However, isolated venous aneurysm is unusual.
Venous diseases seem to be a large social problem. Chronic venous insufficiency, which is the most well-known venous disease, can be caused by high blood pressure in veins. The increase in pressure ma...
The objective of this study is to evaluate whether and which 'venous' symptoms are characteristic for patients affected with chronic venous disease compared to patients with other diseases of the lowe...
Worldwide superficial and deep venous diseases are common and associated with significant individual and socioeconomic morbidity. Increasing burden of venous disease requires Phlebology to define itse...
The primary objective of this study is to determine whether laser treatments over 6 weeks using the pulsed dye laser system or the potassium titanyl phosphate (KTP) laser are effective in...
Venous Pressure Measurement of the Great Saphenous Vein Using Controlled Compression Ultrasound in Healthy Persons and Patients With Chronic Venous Disease as a New Non Invasive Method for Investigation of the Pathophysiology in Primary Varicose Veins
Part I: Proof of concept trial to achieve normal venous pressure values under different provocation maneuvers in healthy persons Part II: Non invasive measurement of venous...
The purpose of this study is to evaluate if the investigational medicinal product CHRONSEAL intended for future treatment of chronic venous leg ulcers is safe and tolerated and if it has a...
The study objective is to evaluate the efficacy and safety of oral YM150 for 52 weeks in patients with a history of venous thromboembolism.
To test the hypothesis that approaching the internal jugular vein with the needle bevel down would produce less injury to the vessel wall compared to the bevel up approach during central v...
Medical and Biotech [MESH] Definitions
Impaired venous blood flow or venous return (venous stasis), usually caused by inadequate venous valves. Venous insufficiency often occurs in the legs, and is associated with EDEMA and sometimes with VENOUS STASIS ULCERS at the ankle.
Rare vascular anomaly involving a communication between the intracranial and extracranial venous circulation via diploe, the central spongy layer of cranial bone. It is often characterized by dilated venous structures on the scalp due to abnormal drainage from the intracranial venous sinuses. Sinus pericranii can be congenital or traumatic in origin.
A vascular anomaly characterized by a radial or wedge-shaped arrangement of dilated VEINS draining into a larger vein in the brain, spinal cord, or the meninges. Veins in a venous angioma are surrounded by normal nervous tissue, unlike a CENTRAL NERVOUS SYSTEM CAVERNOUS HEMANGIOMA that lacks intervening nervous tissue. Drainage of venous angioma is fully integrated with the body's venous system, therefore, in most cases there is no clinical signs and rare bleeding.
Placement of an intravenous catheter in the subclavian, jugular, or other central vein for central venous pressure determination, chemotherapy, hemodialysis, or hyperalimentation.
The blood pressure in the central large VEINS of the body. It is distinguished from peripheral venous pressure which occurs in an extremity.