Nephrology
Clinical discussions on kidney disease management, dialysis, transplantation, and electrolyte disorders.
Recent Discussions
In which patients with MGUS do you recommend a kidney biopsy to evaluate for MGRS?
If a patient has unexplained renal disease, and this could be interstitial or glomerular, and an MGUS, I strongly consider it. I typically try to get heme to do a bone marrow biopsy first because their findings may obviate a renal biopsy if they find something (although sometimes they may find low-g...
Do you prioritize adding a GLP-1 receptor agonist over an SGLT-2 inhibitor in patients with CKD related to type 2 diabetes, uncontrolled proteinuria despite being on an ACEi, and obesity?
My habit to date has been to use an SGLT-2 inhibitor first. I refer patients to PCPs or others for GLP-1 treatment for obesity, even if they have CKD.
How does contralateral suppression of more than 50% with cosyntropin during adrenal venous sampling influence your decision to recommend adrenalectomy in patients with primary aldosteronism?
Most but not all studies support it as a secondary criterion, and ratios <1 and 0.5 compared to the periphery have been suggested. There have been rare cases where I have used it as the sole criterion where the contralateral adrenal vein could not be successfully catheterized (usually in conjunction...
What is your PTH target for patients with ESKD and brown tumor?
Great question. I would definitely shoot for a lower goal. May be 150-300. I am looking forward to see what our bone experts suggest.
What is your preferred initial imaging choice for a patient suspected of having renal artery stenosis who does not have any contraindications to imaging contrast media?
If the suspicion is for atherosclerotic-related renal artery stenosis (>55 years old, history of systemic atherosclerosis, tobacco use), then I start with a renal duplex ultrasound. Importantly, I do not get a renal duplex ultrasound on all patients with resistant hypertension. If the suspicion is f...
How do you adjust your management strategy to address the unique needs of anuric end-stage kidney disease patients when treating diabetic ketoacidosis?
There is no osmotic diuresis, and they do not need IVFluid, the opposite is true they may appear intravascularly overloaded, and will respond to insulin alone, they do not need HD for this. They will not be K deficient, do not give K. Their potassium will likely respond to insulin alone, and should...
Do you recommend avoiding combination vancomycin and piperacillin-tazobactam in patients with acute kidney injury?
Personally, I don't think the risk is that high and I won't necessarily recommend against it. If a patient develops worse renal function while on the drugs though, I would have a low threshold of switching to something different. I would also try to avoid vancomycin levels over 30.
What is your approach to anticoagulation in a patient with AKI and cirrhosis who has frequent filter clotting on CRRT?
A meta-analysis (Qi et al., PMID 37186766) compared 348 patients from 9 studies receiving RCA to 127 patients from 5 studies receiving heparin anticoagulation. Among the RCA recipients, the incidence of citrate accumulation, metabolic acidosis, and metabolic alkalosis was 5.3%, 26.4%, and 1.8%, resp...
How would you treat ESRD patients on hemodialysis with recurrent AV fistula thrombosis found with low protein C activity?
I assume that the patient described in the vignette has a negative family and personal history of VTE. PC (and PS) deficiencies are relatively common in ESRD patients. The low levels are thoughts to reflect a combination of true (acquired) reduction and the assay interference rather than true defici...
How do you address patient concerns regarding the necessity of REMS monitoring when prescribing sparsentan?
I point out to patients that sparsentan itself did not have an increased incidence of liver function abnormalities in trials, and that this REMS monitoring is required out of an abundance of caution because of liver function abnormalities seen with other anti-endothelin drugs like bosentan. Of cours...