All of the following are contraindications for intracranial artery aneurysm embolization EXCEPT:

In the context of intracranial artery aneurysm embolization, nerve paralysis is not considered a contraindication for the procedure. While nerve paralysis may indicate a potential complication or may influence the clinical decision-making regarding the timing or necessity of the procedure, it does not inherently prevent a patient from undergoing embolization.

In contrast, conditions such as hypertension, calcified arteries, and difficult anatomical structures are typically seen as contraindications due to their potential to complicate the procedure or increase the risk of adverse outcomes. Hypertension can affect the stability of an aneurysm and the overall safety of performing an invasive procedure. Calcified arteries may complicate access and visibility during imaging and could pose difficulties in navigating the catheters. Similarly, challenging anatomical configurations can complicate the delivery of treatment and may make it difficult to effectively isolate or treat the aneurysm.

Therefore, understanding that nerve paralysis does not outright prevent the procedure provides a clearer perspective on how patient conditions can influence treatment decisions in vascular interventional practices.