See Also: Calvert, Leonard(encyclopedia)
Calvert Memorial Hospital(health)
Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
Baltimore (of Baltimore), George Calvert, 1st Baron(encyclopedia)
Medicine Lodge Memorial Hospital- Medicine Lodge(health)
Limosin, Leonard(encyclopedia)
Colebrook, Leonard(encyclopedia)
Chess, Leonard(encyclopedia)
Leonard, Buck(encyclopedia)
Bernstein, Leonard(encyclopedia)

pulmonary stenosis (medicine) and Calvert, Leonard (sh)


pulmonary stenosis (medicine)


pulmonary stenosis
<cardiology> A congenital or acquired heart valve defect. The abnormal narrowing and ineffective opening of the pulmonic valve.

Symptoms include cyanosis and difficulty breathing. Treatment is surgical in most cases of significant valvular stenosis.


Calvert, Leonard (sh)




born งใ 1606, England
died June 9, 1647, St. Mary's, Md.

First governor of the Maryland colony.

He was the younger brother of Cecil Calvert, the colony's proprietor. In 1633 he was sent from England to establish a settlement at St. Mary's. He gradually allowed limited legislative initiative in the colony's assembly. He lost a land conflict with William Claiborne and was forced to leave Maryland (1644-46); aided by colonists, including Margaret Brent, he returned to reinstate his proprietorial rule.