Which statement about renal failure is true in relation to cerebrovascular procedures?

The statement that renal failure is a common complication of angiography is accurate. In the context of cerebrovascular procedures, particularly during angiography, nephrotoxicity can occur due to the use of contrast agents. Patients with pre-existing renal issues or those at risk (such as the elderly or individuals with diabetes) are particularly vulnerable. The renal function can be adversely affected by the contrast medium used during these procedures, leading to acute kidney injury.

This is a significant consideration in vascular procedures, as the risk of renal failure necessitates careful patient selection and monitoring. Preventive measures, such as hydration and using the lowest effective dose of contrast, are often implemented to mitigate this risk.

The other options do not accurately reflect the relationship between renal failure and cerebrovascular procedures. For instance, while renal failure can occur post-endarterectomy, it is not exclusive to that procedure and is more widespread during angiography. Additionally, the correlation between renal failure and stenting complications is not direct, as complications can arise from a multitude of factors unrelated to renal function. Lastly, renal failure is not an indication for carotid endarterectomy; rather, it warrants careful evaluation as a risk factor prior to performing any surgical intervention.