A pioneering one-way valve created by John Holter to treat hydrocephalus. In 1955 Mr. Holter, , a hydraulics technician, and his wife had a son with hydrocephalus for which there was then no effective treatment. Mr. Holter designed a device with a tiny one-way valve that released controlled amounts of the cerebrospinal fluid from the brain into the atrium of the heart. Holter’s prototype valve had two rubber condoms with slits in the top inserted at either end of a flexible piece of tubing. Spitz refers to the American neurosurgeon Eugene B. Spitz.
Also called a Spitz-Holter shunt.
An organ that is located in the upper-left part of the abdomen, not far from the stomach, that produces lymphocytes, which are important elements in the immune system. The spleen is the largest lymphatic organ in the body. The spleen also filters blood, serves as a major reservoir for blood, and destroys blood cells that […]
- Spleen, ruptured
Rupture of the capsule of the spleen that is a potential catastrophe and requires immediate medical and surgical attention. Splenic rupture permits large amounts of blood to leak into the abdominal cavity, and it is severely painful and life threatening. Shock, and ultimately death, can result. Patients typically require immediate surgery. Rupture of a normal […]
An operation to remove the spleen.
- Splenic artery
A large artery within the abdomen that arises from an arterial vessel called the celiac trunk, which emerges from the aorta. The splenic artery supplies blood not only to the spleen, but also to the esophagus, stomach, duodenum, liver, and pancreas.
- Splenic fever
Known also as anthrax, splenic fever is a serious bacterial infection. It is not primarily a human disease but rather an infection of animals. Cattle, sheep, horses, mules, and some wild animals are highly susceptible. Humans (and swine) are generally resistant to anthrax. Anthrax can take different forms. With the lung form of the disease, […]