I have aneurysm, is it safe to take Viagra for erectile dysfunction?

Hi doctor,

I am a 54 year old male with complex medical histories, including a current splenic artery aneurysm, an occluded right vertebral artery, historical major spinal cord trauma from intradural schwannomas (removed twice) and multiple liver hemangiomas. I have had occasional erectile dysfunction. My testosterone level is low and I am on TRT. Is it safe for me to use Viagra or similar drugs for ED?

Thank you doctor,

Definitely, an element of psychogenic anxiety exists, but very much a random occurrence. It indicates a mix of physical and psychological triggers so hoping to remove some of the doubt to boost the confidence. I am well aware of the processes involved and also followed the recommended practices for anxiety reduction. But, the issue still can occur when feeling quite at ease. I am only getting partial response, which is not sufficient.
I am just worried about vascular effects of Viagra on the aneurysm and it was recommended by my endocrinologist. Do I need to consult a vascular surgeon?