Hello, It is unfortunate that all most every patient with long standing cardiovascular disease land into kidney failure. The measures like use of dialysis, in which blood is mechanically purified of accumulated waste due to kidney failure and use of diuretic medication that helps flush out retained fluid are usually employed. Other than that breathing must be assisted with mechanical ventilation until the patient is stable and able to breathe on her own. Hope I have answered your query. Let me know if I can assist you further. Take care Regards, Dr Ayesha Shareef, General & Family Physician