Nephrology
Clinical discussions on kidney disease management, dialysis, transplantation, and electrolyte disorders.
Recent Discussions
How do you approach the management of patients with suspected membranous lupus nephritis who are found to have positive PLA2R antibodies?
In a patient with known SLE with proteinuria > 500 mg/g and (+) PLA2R antibodies in the serum, a kidney biopsy would be warranted. PLA2R staining should be performed on the kidney biopsy. PLA2R staining must co-localize on the subepithelial aspect in a granular fashion similar to IgG in PLA2R posit...
How would you approach the treatment for patients with renal-limited ANCA vasculitis who have persistent proteinuria, hematuria, and ANCA titers and have completed a steroid taper and received three doses of rituximab?
Renal limited ANCA is usually MPO associated. Isolated PR-3 involvement of the kidneys are rare. Further information is needed in making a decision for this case. We need to know when the patient was diagnosed with ANCA vasculitis. What was the Serum creatinine at presentation? When was the kidney b...
Do you recommend initiating immunosuppression and plasmapheresis in patients with dialysis dependent AKI in the setting of anti-GBM disease who do not have pulmonary involvement?
Anti-GBM disease is a rare disorder (incidence perhaps 1:1,000,000 adults/year) that is characterized as a small vessel vasculitis mediated by anti-GBM antibodies directed against the alpha-3-chain of collagen IV in basement membranes. Perhaps half of patients have disease that involves both the kid...
Are there instances when you use letermovir without the addition of acyclovir when managing a kidney transplant recipient for CMV prophylaxis?
I am assuming this question is about initial viral prophylaxis after transplant and exposure to induction immunosuppression. We have not used often letermovir as first line CMV prophylaxis outside of a research study, or during valcyte shortages. Cases where one might consider Letermovir as prophyla...
What is your approach to using calcium containing medications for patients with recurrent nephrolithiasis and hyperoxaluria?
Depending on their 24 hour urine, I suggest taking calcium with meals to bind oxalate and follow 24 hour urines.
Do you recommend CT or ultrasound imaging testing when monitoring a patient with nephrocalcinosis?
I recommend CT. It is much more sensitive for detecting small changes in calcification than US. Yes, it is more expensive and requires a small amount of radiation, but if monitoring is indicated, I think sensitivity is most important. Stephen B. Erickson, MD
Would you recommend initially starting twice-weekly outpatient hemodialysis with close lab monitoring for nonoliguric AKI patients?
It is unusual in my experience to initiate dialysis for AKI as an outpatient. More often, patients with prolonged dialysis-requiring AKI may need to be transitioned from an inpatient setting to outpatient dialysis while awaiting improvement in kidney function. The question of when to initiate dialys...
What is your approach to preventing exercise-associated hyponatremia?
Exercise-associated hyponatremia is typically due to fluid intake in excess of fluid loss. Therefore, athletes should avoid overconsumption of fluids. Rather, athletes should drink according to thirst. In addition, it is important to recognize that electrolyte-containing sport drinks does not provid...
Are there instances when you use a 3% sodium chloride infusion for patients with chronic hyponatremia secondary to SIADH but who are asymptomatic or have only mild symptoms?
One thing about 3% is that properly administered, the Na will rise. I have used it when I just want the PNa to increase ASAP, which for non neurological reasons may be something as simple as allowing the patient to go to the OR (they often have a minimal Na that they will give general anesthesia to)...
Would you stop denosumab in a patient with chronic kidney disease if they develop asymptomatic hypocalcemia after the injection?
No. Stopping denosumab leads to rebound bone resorption and loss of all gains. The hypocalcemia indicates insufficient calcium and/or calcitriol. Calcium intake should be 1,000-1,200 mg daily from food and/or supplements in divided doses with food.