A tropical climate can be observed in Nicaragua. Just as in the other Central American countries, there are two seasons: the dry and the raining season. During the dry season (January - June) there is virtually no rain and trees and plants start to dry out.
Causes of aortic valve regurgitation include: 1  Congenital heart valve disease. 2  You may have been born with an aortic valve that has only two leaflets (bicuspid valve) or fused leaflets rather than the normal three separate leaflets. 3  This puts you at risk of developing aortic valve regurgitation at some time in your life.
A bicuspid aortic valve is a heart condition that is usually due to a congenital deformity. A normal aortic valve has three cusps, whereas a bicuspid valve has only two. About 1-2% of the population have bicuspid aortic valves, although the condition is nearly twice as common in males. The majority will cause no problems.