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Hemorrhoidectomy
Hemorrhoidectomy
An operation to remove hemorrhoids.
SIMILAR TERMS--------------------------------------
Hemochromatosis
A disorder due to the deposition of hemosiderin in the parenchymal cells, causing tissue damage and dysfunction of the liver, pancreas, heart, and pituitary. Full development of the disease in women is restricted by menstruation, pregnancy, and lower dietary intake of iron. Acquired hemochromatosis may be the result of blood transfusions, excessive dietary iron, or secondary to other disease. Idiopathic or genetic hemochromatosis is an autosomal recessive disorder of metabolism associated with a gene tightly linked to the A locus of the HLA complex on chromosome 6.
Hemodialysis
A mechanical method of cleaning the blood for people who have kidney disease. See also: Dialysis.
Hemodynamic
Relating to the physical aspects of the blood circulation.
Hemoglobin
Hemoglobin is a substance contained within the red blood cells and is responsible for their color. It has the unique property of combining reversibly with oxygen and is the medium by which oxygen is transported within the body. It takes up oxygen as blood passes through the lungs and releases it as blood passes through the tissues.
Hemolysis
The destruction of red blood cells.
Hemolytic disease of the newborn
Also called Rh disease or erythroblastosis, hemolytic disease results when a woman who is Rh-negative (meaning she does not carry the Rh protein in her blood) has a fetus who is Rh-positive and her immune system makes antibodies against the fetus's blood. The disorder is treated with a compound that prevents the woman's immune system from making antibodies.
Hemolytic Uremic Syndrome
Hemolytic anemia and thrombocytopenia occurring with acute renal failure.
Hemophilia
A genetic blood disorder, almost always in males, in which blood does not clot properly as a result of an enzyme deficiency.
Hemopoietic
Pertaining to or related to the formation of blood cells.
Hemoptysis
A cough that produces blood.
Hemorrhage
A general term for loss of blood, often profuse, brought about by injury to the blood vessels or by a deficiency of certain necessary blood elements such as platelets.
Hemorrhaging
Heavy bleeding. A cerebral hemorrhage can lead to a stroke.
Hemorrhoid
Caused by increased blood volume and pressure from the uterus on the veinsin the legs and pelvis, these swollen blood vessels in the anus are commonduring pregnancy. Constipation can also cause (or compound) the problem.
Hemorrhoids
Enlarged veins protruding into the anorectal area, either internal or externally visible. They are either the result of poor sphincter tone and portal congestion, or sphincter hypertonicity, skeletal muscle and adrenergic excess.
Hemostasis
Arrest of blood circulation.
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Headache
Primary - includes tension (muscular contraction), vascular (migraine), and cluster headaches not caused by other underlying medical conditions. Secondary - includes headaches that result from other medical conditions. These may also be referred to as traction headaches or inflammatory headaches.
Heart block
Interrupted electrical impulse to heart muscles.
Heart valve prolapse
A condition of the heart valve in which it is partially open when it should be closed.
Heart-lung machine
A machine that performs for the heart during open heart surgery.
Helicobacter pylori (H. pylori)
A spiral-shaped bacterium found in the stomach. H. pylori damages stomach and duodenal tissue, causing ulcers. Previously called Campylobacter pylori.
Hemorrhoidectomy
Hepatic
Related to the liver.
Hepatic coma
A condition that may cause loss of consciousness and coma. It is usually the result of advanced liver disease. Also called hepatic encephalopathy.
Hepatic encephalopathy
A condition that may cause loss of consciousness and coma. It is usually the result of advanced liver disease. Also called hepatic coma.
Hepatitis A
A virus most often spread by unclean food and water.
Hepatitis B
A virus commonly spread by sexual intercourse, blood transfusion, from mother to newborn at birth, or by using a needle that was used by an infected person. Hepatitis B is more common and much more easily spread than the AIDS virus and may lead to cirrhosis and liver cancer.
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