Ukulele Festival Hawaii. This annual Waikiki festival honors Hawaii's beloved musical instrument. Photo: Tina Mahina. Photo: Tina Mahina. The ukulele is Hawaiiâs best-loved musical instrument, so it makes sense that Ukulele Festival Hawaii is the worldâs largest, attracting enthusiasts from as far away as Italy and Thailand.
atrioventricular (AV) valve, a valve in the heart through which blood flows from the atria to the ventricles. The valve between the left atrium and left ventricle is the mitral (bicuspid) valve; the right AV valve is the tricuspid valve. 1  Facebook. 2  Twitter.
An atrioventricular septal defect (AVSD) is a heart defect in which there are holes between the chambers of the right and left sides of the heart, and the valves that control the flow of blood between these chambers may not be formed correctly. This condition is also called atrioventricular canal (AV canal) defect or endocardial cushion defect.