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.
Bicuspid Aortic Valve. Bicuspid aortic valve (BAV) affects approximately one to two percent of people. It is the most common congenital heart disorder, impacting both the aortic valve (which controls the flow of blood into the aorta) and the thoracic aorta (the major vessel that sends blood throughout the body).About nine percent of people with BAV have relatives with the disease, so family screening is important.t is the most common congenital heart disorder, impacting both the aortic valve (which controls the flow of blood into the aorta) and the thoracic aorta (the major vessel that sends blood throughout the body). About nine percent of people with BAV have relatives with the disease, so family screening is important.