A disorder of the heart’s electrical system that predisposes individuals to irregular heartbeats, fainting spells, and sudden death. The irregular heartbeats are typically brought on by stress or vigorous activity. Abbreviated LQTS. LQTS is often symptomless and undiagnosed, but it is well known as a cause of sudden cardiac death in young, apparently healthy people, most notably competitive athletes. QT refers to an interval seen in an electrocardiogram (EKG) test of heart function. There are multiple genetic forms of LQTS. Romano-Ward syndrome is an autosomal dominant form of LQTS. The Jervell and Lange-Nielsen syndrome is an autosomal recessive form of LQTS and is characterized by congenital profound bilateral sensorineural hearing loss and long QT interval.
- Long arm of a chromosome
The long arm of a chromosome is termed the q arm. All human chromosomes have 2 arms, the p (short) arm and the q (long) arm. They are separated from each other only by a primary constriction, the centromere, the point at which the chromosome is attached to the spindle during cell division. The symbol […]
- Loneliness, fear of
“autos” (self) and “phobos” (fear). “Autos” has given us many English words such as “automatic” and “automotive” (self-moving) and “autonomy” (self-governing). And “phobos” has bequeathed us a vast number of phobias such as “claustrophobia” (fear of closed places) and “acrophobia” (fear of heights).
The portion of the lower back from just below the ribs to the pelvis.
To soften tissues after death by soaking and by enzymatic digestion, as occurs with a stillborn. The word “macerate” comes from the Latin “macero” meaning to soften by soaking (in a liquid).
Abbreviation for the Latin title Medicinae Doctor, Doctor of Medicine. Sometimes written today as MD (without the period after each letter). All medical schools in the United States and Canada award an M.D. degree, usually after 4 years undergraduate study at a college or university followed by 4 years of medical school. (Some medical schools […]