Nephrology
Clinical discussions on kidney disease management, dialysis, transplantation, and electrolyte disorders.
Recent Discussions
How do you integrate perioperative dapagliflozin with hemodynamic optimization and nephrotoxin avoidance for AKI prevention in a patient undergoing elective cardiac surgery?
At this time, I would not recommend perioperative dapagliflozin for the prevention of AKI in patients undergoing elective cardiac surgery. The primary outcome in the MERCURI-2 trial was a composite definition of AKI using the KDIGO criteria which incorporates changes in both serum creatinine and uri...
How do you decide when to implement a "renal diet" (i.e., restricting electrolyte and/or fluid intake) in hospitalized patients with renal impairment?
I think about this from several perspectives: First, what's the severity of the renal impairment? Generally, I consider electrolyte abnormalities like hyperkalemia and hyperphosphatemia more likely to occur when the eGFR is <60 (for hyperphosphatemia, it might be more evident when the eGFR drops bel...
How do you approach prescribing analgesics for osteoarthritis related pain in patients with comorbidities, particularly given new evidence that even acetaminophen is associated with increased risk of GI complications (bleeding, peptic ulcer disease), heart failure and CKD?
Acetaminophen is still preferred, but at 3,000 mg or less per day. The next consideration is a COX-2 specific inhibitor, such as celebrex. Narcotics and steroids play no role in management of osteoarthritis.
Do you routinely hold SGLT2 inhibitors prescribed for CHF or CKD in acutely ill patients upon admission to the hospital?
Thanks for this great question. The use of SGLT2 inhibitors in the hospital has been increasing dramatically, given their great effects on CKD and CHF for both diabetic and non-diabetic patients. There are simple direct contraindications for using SGLT2s, which would include patients with ketosis in...
Do you have a preference between an ACEI and ARB when initiating therapy for a patient with diabetic kidney disease, albuminuria, and hypertension?
Why would you use an ACEi over an ARB these days? Cough is a LOT more common than stated. I see patients all the time who have a ticket, an annoyance that goes away on an ARB. Also, I don't see a $ argument, nor am I aware that ACEi have even been shown to be superior to ARB for reno protection. Als...
How do you decide on the speed and target of blood pressure reduction for spontaneous intracranial hemorrhage?
I think the target and speed of blood pressure reduction in ICH depend on several variables, including initial SBP, clinical stability, hematoma size, and renal function. For patients presenting with SBP >220, I typically aim to lower the pressure to around SBP 160 over the first 12 hours, then grad...
Can a dihydropyridine calcium channel blocker (CCB) like amlodipine be prescribed in addition to a non-dihydropyridine CCB such as diltiazem or verapamil for treating hypertension?
Yes, with extreme caution. Diltiazem and Verapamil are CYP450 inhibitors, which can interfere with the metabolism of many medications (commonly statins and calcineurin inhibitors), but also can increase levels of nifedipine and presumably other dihydropyridine CCBs, like amlodipine. Diltiazem or ver...
What are some practical tips in distinguishing between metabolic bone disease due to chronic kidney disease and osteoporosis?
The biggest difference between osteoporosis and CKD-MBD has to do with the underlying bone mineral laboratories. Generally, with osteoporosis, bone chemistries are relatively normal; there may be a decrease in Vit D. However, with CKD-MBD, there is usually an increase in PTH, potentially abnormaliti...
When would you consider referring a patient with resistant hypertension for renal denervation?
I consider renal denervation in patients who have 2 kidneys without renal artery pathology, eGFR > 40, a negative secondary workup (including exclusion of primary aldosteronism), uncontrolled BP, and who can return for follow-up monitoring after the procedure. Some of my referrals have been in patie...
Do you discontinue amlodipine or use an alternative approach to manage peripheral edema when it occurs as a side effect of the medication?
CCB edema (also hydralazine edema) are so underappreciated by non-nephrologists. Rarely does a clinic go by without me seeing some form of it. It is from vasodilation that allows gravity to increase capillary hydrostatic pressure, fluid moves out of vascular space to interstitial space and in that r...