Will angioplasty of the leg affect my mother's kidneys?

Hello doctor,

My mother has developed gangrene in her left leg, which pains a lot when she walks for more than two minutes, from past two weeks. So, we got an MRA of the leg, which showed no blood circulation in the left leg. As a result, the doctor suggested an angioplasty and amputation. She is diabetic and hypertensive patient, and she is under medication. Also, her creatinine level is 3.4. I was told by a few doctors, that if we get the angioplasty done, there are chances of kidney failure. If my mother's kidneys do fail, can they recover? Is permanent dialysis required? If yes, how safe is that? What are your suggestions on angioplasty when the patient is not having good kidney condition? Can the kidneys be treated before the angioplasty? Can you give your opinion on the same, as we are planning the procedure soon?

Hi doctor,

Thanks a lot for the quick response. My mom was never been treated for any kidney disorder, but her creatinine levels are high from many years. The creatinine level was 2.9. What do you mean by pre-existing kidney disorder? Can you please let us know just by the creatinine levels if she has any kidney disorder? Are her kidneys damaged? I have attached her urine, blood, and ultrasound reports. Do you see any abnormalities in the reports? Thank you.