What is sinus Valsalva?
What is sinus Valsalva?
A sinus of valsalva aneurysm (SOVA) is an abnormal dilatation of the aortic root located between the aortic valve annulus and the sinotubular junction. It occurs as a consequence of weakness of the elastic lamina at the junction of the aortic media and the annulus fibrosis.
What is non coronary sinus?
The left posterior aortic sinus gives rise to the left coronary artery. The anterior aortic sinus gives rise to the right coronary artery. The right posterior aortic sinus usually gives rise to no vessels, and is often known as the non-coronary sinus.
What is ruptured sinus of Valsalva?
A ruptured sinus of Valsalva aneurysm (SVA) is a rare cardiac abnormality, and is associated with a severe left-to-right shunt if communicating with the right-sided heart chambers. Uncorrected, the rupture almost invariably causes deterioration in heart function.
Is sinus of Valsalva same as aortic root?
A sinus of Valsalva aneurysm (SOVA) is an enlargement of the aortic root area between the aortic valve annulus and the sinotubular ridge. 1 In a normal heart, the left and right sinus each contain their respective coronary artery ostia, whereas the posterior sinus is a noncoronary sinus.
Where are the aortic sinuses?
An aortic sinus, also called the sinuses of Valsalva is one of the anatomic dilatations of the ascending aorta, which occurs just above the aortic valve. These widenings are between the wall of the aorta and each of the three cusps of the aortic valve.
What is the function of aortic sinus?
The sinuses play two very important roles. They provide space behind the open aortic leaflets so that the leaflets do not occlude the coronary artery orifices. Secondly, this space favours the development of eddy currents behind the leaflets when they are open.
What does a ruptured sinus feel like?
Pain can be severe, sometimes accompanied by facial tenderness on palpation. Rarely, the sinus may rupture and cause pneumocephalus with facial or oral pain, nausea, vertigo, or headache. Rupture of a maxillary sinus can cause retro-orbital air with diplopia due to oculomotor dysfunction.
What would be the effect of aortic stenosis on the heart?
In aortic stenosis, the heart is unable to increase output to compensate for the drop in blood pressure. Therefore, blood flow to the brain is decreased, causing fainting. Fainting can also occur when cardiac output is decreased by an irregular heart beat (arrhythmia).