Medical Dictionary Definitions A-Z List
Medical Dictionary Definitions A - Z - «H»:
Hypertension, gestational: High blood pressure that develops during pregnancy and may subside after delivery. Women who have experienced gestational hypertension are more likely to develop hypertension and suffer a stroke later in life....
Hypertension, pulmonary: See: Pulmonary hypertension....
Hypertension, white coat
Hypertension, white coat: A transient increase in blood pressure (hypertension) triggered by the sight of medical personnel in white coats (or other attire)....
Hypertensive: Having abnormally high blood pressure (hypertension). See also: Hypotensive; Normotensive....
Hypertensive crisis: A
severe and potentially life-threatening increase in blood pressure
hypertensive crisis is a medical emergency. When the blood pressure rises to
levels of 180/110 or greater, the blood vessels and organs may become damaged.
This damage can be manifested as a nu...
Hyperthermia: Overheating of the body. This may be due to extreme weather conditions. Unrelieved hyperthermia can lead to collapse and death, particularly in the elderly. Prevention via air conditioning, ventilation, and drinking extra water is the key for vulnerable persons. In emergency cases, inj...
Hyperthermia, malignant: A series of potentially
fatal problems that can occur during surgery, malignant
hyperthermia is caused by a reaction to anesthesia. The body's metabolism rises suddenly, causing a sudden jump in body temperature and muscle rigidity. The result can be damage to tissues and ...
Hyperthyroid: Excess of thyroid hormone resulting
from an overactive thyroid gland (or taking too much thyroid
hormone). Symptoms can include increased heart rate, weight loss,
depression, and cognitive slowing. Treatment is by medication, the
use of radioactive iodine, thyroid surgery, or redu...
Hypertonia: Increased tightness of muscle tone.
Untreated hypertonia can lead to loss of function and deformity.
Treatment is by physical and/or occupational therapy, and in some
cases muscle relaxant medication. Injections of botulism toxin
(botox) are a recent treatment for chronic hypertonia ...
Hypertonic solution: A solution with a higher salt concentration than in normal cells of the body and the blood. As opposed to an isotonic solution or a hypotonic solution....
Hypertrophic: Exhibiting hypertrophy (enlargement or overgrowth of an organ or part of the body due to increased size of the constituent cells), as in hypertrophic cardiomyopathy....
Hypertrophic cardiomyopathy: A genetic
disorder of the heart characterized by increased thickness (hypertrophy) of the wall of the left ventricle, the largest of
the four chambers of the heart. The disease can present at any time in life. It is the leading cause of sudden death in athletes and you...
Hypertrophic gastritis: See: Giant hypertrophic gastritis....
Hypertrophic hypoproteinemic gastropathy
Hypertrophic hypoproteinemic gastropathy: See: Giant hypertrophic gastritis....
Hypertrophy: Enlargement or overgrowth of an organ or part of the body due to the increased size of the constituent cells. Hypertrophy occurs in the biceps and heart because of increased work. Cardiac hypertrophy is recognizable microscopically by the increased size of the cells. The term hypertroph...