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.
Any condition that damages the aortic valve can cause aortic valve regurgitation. Common causes of chronic valve problems include: 1  Being born with a bicuspid aortic valve or a damaged aortic valve. 2  Aging. 3  Enlargement of the aorta because of high blood pressure or hardening of the arteries. 4  Rheumatic fever.