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Superior vena cava syndrome (SVCS), is a group of symptoms caused by obstruction of the superior vena cava ("SVC"), a short, wide vessel carrying circulating blood into the heart. The majority of cases are caused by malignant tumors within the mediastinum , most commonly lung cancer and non-Hodgkin's lymphoma , directly compressing or invading ...
Carlon et al reported the first superior cavo-pulmonary anastomosis between the right pulmonary artery and azygos vein, demonstrated an increase in pulmonary blood flow in dogs. [17] The Glenn group at Yale worked on several strategies to create anastomoses between the superior or inferior vena cavae to the right or main pulmonary arteries.
Problems with the innominate vein and superior vena cava have also been reported to contribute to CCSVI. [27] A vascular component in MS had been cited previously. [28] [29] Several characteristics of venous diseases make it difficult to include MS in this group. [14] In its current form, CCSVI cannot explain some of the epidemiological ...
Inferior vena cava syndrome (IVCS) is a very rare constellation of symptoms resulting from either obstruction or stenosis of the inferior vena cava. It can be caused by physical invasion or compression by a pathological process, or by thrombosis within the vein itself. It can also occur during pregnancy. Symptoms including high venous pressure ...
A positive Pemberton's sign is indicative of superior vena cava syndrome (SVC), commonly the result of a mass in the mediastinum.Although the sign is most commonly described in patients with substernal goiters where the goiter "corks off" the thoracic inlet, [4] the maneuver is potentially useful in any patient with adenopathy, tumor, or fibrosis involving the mediastinum.
White dog shaker syndrome causes full body tremors in small, white dog breeds. It is most common in West Highland White Terriers, Maltese, Bichons, and Poodles. [6] Wobbler disease (cervical instability) is a condition of the cervical vertebrae that causes an unsteady gait and weakness in dogs.
Shaker syndrome in dogs is a condition that primarily affects small breeds and can be very concerning for owners. When your dog is shaking or shivering more than normal, it can be tempting to ...
Increased pressure in the sublobular branches of the hepatic veins causes an engorgement of venous blood, and is most frequently due to chronic cardiac lesions, especially those affecting the right heart (e.g., right-sided heart failure), the blood being dammed back in the inferior vena cava and hepatic veins.