Firstly, the aneurysm is an abnormal projection of either of the aortic valvular cusps into their respective chambers. This figure might help -
Figure - Aneurysm of sinus of Valsalva from NCC. RA - Right atrium, RV - right ventricle, PA - pulmonary artery, LA - left atrium, NCC - non-coronary cusp, RCC - right coronary cusp, LCC - left coronary cusp (Modified from Catherine Otto Textbook of clinical echocardiography).
As is seen,
An aneurysm typically projects on echo to produce an asymmetrical ‘windsock’ appearance due to excess tissue, which in contrast is symmetrical when acquired following endocarditis. Continuous wave doppler shows high-velocity flow in both systole and diastole.
A rupture of the sinus of Valsalva aneurysm can result in a continuous murmur on auscultation and may cause hemodynamic compromise. It can cause enlargement of respective chambers.
Figure - Aneurysm of sinus of Valsalva from NCC. RA - Right atrium, RV - right ventricle, PA - pulmonary artery, LA - left atrium, NCC - non-coronary cusp, RCC - right coronary cusp, LCC - left coronary cusp (Modified from Catherine Otto Textbook of clinical echocardiography).
As is seen,
- Right coronary cusp projects into the right ventricular outflow tract - most common site (>80%)
- Non-coronary cusp projects into the right atrium
- Left coronary cusp projects into the left atrium
An aneurysm typically projects on echo to produce an asymmetrical ‘windsock’ appearance due to excess tissue, which in contrast is symmetrical when acquired following endocarditis. Continuous wave doppler shows high-velocity flow in both systole and diastole.
A rupture of the sinus of Valsalva aneurysm can result in a continuous murmur on auscultation and may cause hemodynamic compromise. It can cause enlargement of respective chambers.
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