Nephrology
Clinical discussions on kidney disease management, dialysis, transplantation, and electrolyte disorders.
Recent Discussions
Do you eventually stop urate-lowering therapy in gout patients with CKD who start hemodialysis?
Hemodialysis is an extremely effective serum urate lowering therapy (ULT). As such, whether or not to keep patients on other ULT depends on average serum uric acid levels, how often a patient is having flares, etc. From what I have seen, although some patients will have increased flares in the first...
Would you recommend use of ESA for anemia of kidney disease in the setting of metastatic solid tumor malignancy?
It is not unreasonable in CKD patients with symptomatic anemia and a non-curable metastatic cancer to consider using an ESA. However, this requires an extensive discussion with the patient. ASCO/ASH guidelines recommend against the use of these agents in patients with curable malignancies, so if the...
In which clinical scenarios is relying on the urine protein-to-creatinine ratio as a measure of proteinuria unreliable, and interpretations should be made looking at urine protein and urine creatinine separately?
I typically only use spot UPCRs because (1) they are easy to obtain and thus trend (2) they account for BSA indirectly because it accounts for Cr excretion. The best role of urine protein measurements is really just to trend if your therapy is effective or to screen for disease. When looking at urin...
How do you approach treatment of osteoporosis in patients with CKD who develop a fragility fracture while on denosumab?
The only option left at this point is a PTH compound. Please it or not, it still works every time in subjects with a secondary elevation of PTH. I would try either Forteo or Tymlos for a few months and see if the patient can tolerate it and if the calcium numbers remain stable. I am not sure about r...
How do you approach prophylaxis against glucocorticoid-induced osteoporosis in patients with end-stage renal disease on dialysis?
Treating patients with end-stage renal disease on glucocorticoids to prevent bone loss is a challenge. A patient with end-stage renal disease cannot be treated with bisphosphonates. However, denosumab the RANKL antibody has no restrictions regarding renal disease. So my suggestion is to treat a pati...
Is peritoneal dialysis a contraindication to pelvic radiotherapy?
I have never done it except for a few patients with palliation as treating the entire pelvis may increase the risk of complications of dialysis and also may decrease efficacy and with changes in peritoneal permeability unless treating localized field like prostate or below the peritoneal reflection....
How do you approach the management of immunosuppression in patients with lupus nephritis that go on to dialysis?
It depends entirely on their disease status and profile. It is not unusual for patients to have decreased disease activity when they go on HD. If there is still clinical activity though, I maintain them on immune suppressives and prefer mycophenolate mofetil (a major anti-renal transplant rejection ...
How do you approach the use of endothelin receptor antagonists in patients with scleroderma renal crisis and hypertension refractory to maximum ACE inhibition and calcium channel blockers?
There is pathologic evidence of endothelin being increased in the renal biopsies of patients with scleroderma renal crisis. There has been one small prospective open study where endothelin receptor antagonists were used in addition to ACE inhibitors in some refractory patients and compared to histor...
How do you approach urate-lowering therapy in patients with advanced chronic kidney disease?
I lower uric acid independent of GFR. There is little evidence to support limiting uric acid-lowering therapy. This misinformation came out due to combining fears that the incidence of allopurinol reactions would increase in patients with renal insufficiency. Allergic reactions are related to exposu...
How do you approach relapsing ANCA-associated vasculitis in a patient who has already undergone kidney transplant?
In a very individualized way (What has the patient been treated with before? What is the current transplant immunosuppression? etc.) and in conjunction with a transplant nephrologist. One could imagine re-induction with rituximab would work in many cases but specifics about each individual case will...