Bruits heard bilaterally, loudest low in the neck, are most likely caused by which condition?

Bruits that are heard bilaterally and are loudest low in the neck are typically indicative of turbulent blood flow in the carotid arteries or associated vessels. Aortic valve stenosis is known to cause a characteristic heart murmur that can sometimes lead to bruits being auscultated, but this is more commonly localized and not typically described as bilateral bruits low in the neck.

In the case of bilateral subclavian stenosis, the bruits would potentially be found in the supraclavicular areas rather than low in the neck. Aortic arch occlusion could also produce some auditory symptoms, but it tends to manifest differently and often affects the upper body vessels. Bilateral common carotid artery (CCA) obstruction might suggest that there is a significant hemodynamic change, but again the characteristics of the bruit would be different.

Focusing on aortic valve stenosis, it leads to a pressure gradient across the valve that can create turbulence at the level of the carotid arteries, which may be transmitted to the neck and result in bruits that can be heard bilaterally and low in the neck area. This condition can cause a delay in blood flow dynamics which would be reflected as such sound. Thus, considering the nature and common