Category: H
-
Hereditary angioedema
A rare autosomal dominant disease marked by episodic bouts of subcutaneous and submucosal edema, especially of the gastrointestinal tract or the upper airways. It is caused by the hereditary lack of a protein (Cl INH) that inactivates complement or by the malfunction of this protein. Physical trauma or psychological stress may precipitate attacks. The symptoms…
-
Hysterical anesthesia
Bodily anesthesia occurring in conversion disorders.
-
Hypothermic anesthesia
General anesthesia during which the body temperature is lowered.
-
Hypotensive anesthesia
Anesthesia during which the blood pressure is lowered.
-
Hypoplastic anemia
Term that has been used to describe aplastic anemia. If anemia due to failure of formation of red blood cells is meant, pure red blood cell aplasia is the term of choice. The inadequate or impaired growth of a tissue or organ. Hypoplastic left heart syndrome represents the gravest form of congenital heart disorder. A…
-
Hypochromic anemia
Anemia in which hemoglobin is deficient and mean corpuscular hemoglobin concentration is less than normal.
-
Hyperchromic anemia
Anemia in which mean corpuscular hemoglobin concentration (MCHC) is greater than normal. The red blood cells are darker staining than normal.
-
Homocladic anastomosis
Anastomosis between branches of the same artery.
-
Heterocladic anastomosis
Anastomosis between branches of different arteries.
-
Hepatopancreatic ampulla
The entry of the common bile duct and main pancreatic duct into the duodenum.