ASN represents more than 20,000 kidney health professionals working to help people with kidney diseases and their families. Comprised of all of ASN's focus areas, the ASN Alliance for Kidney Health allows the society to continue its growth and work towards the goal of a world without kidney diseases.
The latest Nephrology Self-Assessment Program (nephSAP) issue, Volume 25: Issue 2 (Aug 2026): Acute Kidney Injury and Critical Care Nephrology is now available online.
RE: Hyponatremia with a low urine Na, no clear cardiac or hepatic explanation 4 hours ago
@Edwin Anand-just FYI-Hepatic vein doppler might help to distinguish etiology of low EABV( HYPONATREMIA) in this case from significant TR ----...
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RE: Early post-transplant thrombocytopenia with schistocytes: ATG:CNI-associated TMA or multifactorial? 4 hours ago
thanks Dr. Liu for the article which drives home all the important points -increased RI, reversal in diastolic flow, perinephric usually sub capsul...
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RE: Early post-transplant thrombocytopenia with schistocytes: ATG:CNI-associated TMA or multifactorial? 5 hours ago
Thank you very much, Professor Lerman. Her younger brother developed ESKD at nearly the same age and underwent a successful kidney transplant seven...
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RE: Early post-transplant thrombocytopenia with schistocytes: ATG:CNI-associated TMA or multifactorial? 5 hours ago
Dr. Lerman: I can recall 2 cases of Page Kidney following kidney transplantation, in the setting of implantation biopsy + early post-transplant sta...
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RE: Early post-transplant thrombocytopenia with schistocytes: ATG:CNI-associated TMA or multifactorial? 5 hours ago
Thank you very much, Professor Glassock. We agree that ATG-associated thrombocytopenia/hemolysis is currently the leading explanation; ATG was stop...
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RE: Early post-transplant thrombocytopenia with schistocytes: ATG:CNI-associated TMA or multifactorial? 5 hours ago
Here is one article for Page kidney after kidney transplant. ------------------------------ Song Liu MD Assistant professor New Mexico University...
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RE: Early post-transplant thrombocytopenia with schistocytes: ATG:CNI-associated TMA or multifactorial? 6 hours ago
Post transplant "Page Kidney" excellent point but never seen it happen in my Transplant Nephrology career . Per literature presents with sudden dec...
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RE: Sarcoidosis? 6 hours ago
Dr. Rodby- do you have a threshold of Scr in Sarcoidosis above which you do not use MTX for therapy. Just curious!! ----------------------------...
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RE: Hyponatremia with a low urine Na, no clear cardiac or hepatic explanation 6 hours ago
I have customarily avoided Tolvaptan in patients hospitalized with hyponatremia due to chronic liver , especially if the latter is clinically worse...
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RE: Hyponatremia with a low urine Na, no clear cardiac or hepatic explanation 6 hours ago
I like the simplicity and the prudent use of laboratory testing!!! Thanks ------------------------------ Richard Glassock MD, FASN Emeritus Prof...
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RE: Hyponatremia with a low urine Na, no clear cardiac or hepatic explanation 7 hours ago
Something like...I give 7.5 mg in the AM and check the Na later that day. If it is increasing at an acceptable rate, just redose 7.5 QAM until the ...
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RE: Early post-transplant thrombocytopenia with schistocytes: ATG:CNI-associated TMA or multifactorial? 9 hours ago
Looks like ATG induced thrombopenia and hemolysis. Should improve gradually. What is happening to the peri-graft hematoma? Watch out for a "Page Ki...
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RE: Hyponatremia with a low urine Na, no clear cardiac or hepatic explanation 10 hours ago
@Sheldon Hirsch how do you monitor response to Tolvaptan ?? 1. Decrease in Uosm 2. Increase in urine volume 3. Rise in Pna 4. All of the above ...
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RE: Hyponatremia with a low urine Na, no clear cardiac or hepatic explanation 10 hours ago
I use talvaptan only in-hospital, not chronically (for hyponatremia), and only (usually just several days) until the Na increases (then stop, to pr...
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RE: Hyponatremia with a low urine Na, no clear cardiac or hepatic explanation 12 hours ago
the potential danger in option 2. is relative overcorrection(I continue to assume asymptomatic hyponatremia?) if necessary due to symptoms or ref...
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RE: Early post-transplant thrombocytopenia with schistocytes: ATG:CNI-associated TMA or multifactorial? 12 hours ago
thank you for additional details so recipients younger brother had ESRD and successful transplant 7 yrs ago-was brother's donor living vs deceased?...
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RE: AKI & Immune complex GN 12 hours ago
I always thought that the absence of a "full house pattern" means no lupus, but seems Pathology believe in the existence of serology negative, inco...
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RE: Hyponatremia with a low urine Na, no clear cardiac or hepatic explanation 12 hours ago
There are only two options 1.give normal saline or 2.diuretic/aquaretic. You tried option 1 and it didn't work, time to try option 2 -----------...
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RE: Hyponatremia with a low urine Na, no clear cardiac or hepatic explanation 13 hours ago
Fist something does add up in the urine osms calculation! what was the urine urea? Is he on SGLT2i with severe glucosuria? GI sodium wasting coul...
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RE: Early post-transplant thrombocytopenia with schistocytes: ATG:CNI-associated TMA or multifactorial? 13 hours ago
Thank you, Professor Venkat. She had significant residual urine output before transplantation: a documented 24-hour urine volume of 1.21 L with cre...
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RE: Early post-transplant thrombocytopenia with schistocytes: ATG:CNI-associated TMA or multifactorial? 13 hours ago
Thank you, Professor Lerman. I share your concern that graft recovery is slower than expected following living-donor transplantation. Her documen...
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RE: Early post-transplant thrombocytopenia with schistocytes: ATG:CNI-associated TMA or multifactorial? 13 hours ago
I share Dr. Lerman's concern regarding slow decline of serum creatinine and modest urine output following a living donor transplant. I asked about ...
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RE: Hyponatremia with a low urine Na, no clear cardiac or hepatic explanation 13 hours ago
Even though urine osm > 500 can predict Free water restriction failure per Dr. Hirsch , if patient is asymptomatic can still observe and escalate i...
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RE: Early post-transplant thrombocytopenia with schistocytes: ATG:CNI-associated TMA or multifactorial? 14 hours ago
Concerned creatinine is falling so skowly usually normal after a few days with living donor. Urine output 1.5 l /day seems low -what was pretranspl...
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RE: Early post-transplant thrombocytopenia with schistocytes: ATG:CNI-associated TMA or multifactorial? 15 hours ago
Did she make urine before transplant? Total WBC and absolute neutrophil and absolute lymphocyte count trends? If these are falling in addition to h...
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Early post-transplant thrombocytopenia with schistocytes: ATG:CNI-associated TMA or multifactorial? 17 hours ago
Dear colleagues, I seek your opinion regarding a 33-year-old, 55-kg woman following living-donor kidney transplantation. DSA and final T/B-cell cro...
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RE: Hyponatremia with a low urine Na, no clear cardiac or hepatic explanation 1 day ago
I agree that liver/heart disease/decreased effective arterial volume is the likely etiology, after the failure to respond to 3L saline. I doubt wat...
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RE: Sarcoidosis? 1 day ago
Be very careful with MTX if thexpatient has a reduced eGFR (adjusted for age) . ------------------------------ Richard Glassock MD, FASN Emeritus...
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RE: Hyponatremia with a low urine Na, no clear cardiac or hepatic explanation 1 day ago
Dr. Anand - I believe that your assumption that portal hypertension is required for dilitation of splanchnic vessels (and reduced effective arteria...
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RE: Hyponatremia with a low urine Na, no clear cardiac or hepatic explanation 1 day ago
Edwin Anand-great case-serial wts?curent serum sodium? if his wt is increasing and BP NORMAL, and serum sodium remains [More]
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RE: Hyponatremia with a low urine Na, no clear cardiac or hepatic explanation 1 day ago
Dr. Anand: You had mentioned that the initially low BP improved after IV normal saline and permitted the use of diltiazem and beta-blockers. What...
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RE: Sarcoidosis? 1 day ago
Thank you all for your input. since this seems to be uncharted territory. I will try the methotrexate. --------------------------------- J Gunnell...
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RE: Hyponatremia with a low urine Na, no clear cardiac or hepatic explanation 1 day ago
Drs. Boobes and Lerman, the 3L of IV fluid that he received on D1/2 was Normal Saline. Unfortunately his urine output was not monitored. His oral f...
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RE: Hyponatremia with a low urine Na, no clear cardiac or hepatic explanation 1 day ago
We have new tools available such as Bioimpedence cardiography and Spectroscopy, which are bedside tools to estimate Cardiac output , cardiac index ...
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RE: Hyponatremia with a low urine Na, no clear cardiac or hepatic explanation 1 day ago
we need to know what type iv fluids were given ( NS? RINGERS? COLLOID ?) hard to believe urine sodium [More]
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RE: Hyponatremia with a low urine Na, no clear cardiac or hepatic explanation 1 day ago
Thank you all for this fascinating discussion. Before invoking a rare hepatic or tubular mechanism, I wonder whether the simplest explanation-very ...
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RE: Hyponatremia with a low urine Na, no clear cardiac or hepatic explanation 1 day ago
Thanks Dr. Mellas for raising the "effective arterial volume " deficit as an explanation for renal sodium aviditiy and water retention in this case...
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RE: Hyponatremia with a low urine Na, no clear cardiac or hepatic explanation 1 day ago
The history and the following features: · Hypotonic hyponatremia: serum Osm 269 · Strong AVP effect: urine Osm 584 · Strong RAAS stimulation: ...
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RE: Hyponatremia with a low urine Na, no clear cardiac or hepatic explanation 1 day ago
Both cholestatic CLD (in absence of cirrhosis) & TR could lead to Na (+ H2O) avid state (with persistent, now hypervolemic, hypoNa) by aldo-dep & a...
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RE: Hyponatremia with a low urine Na, no clear cardiac or hepatic explanation 1 day ago
Based on this very thorough description one must speculate a decrease in effective arterial volume/perfusion as opposed to hypovolemia per se, sinc...
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RE: Hyponatremia with a low urine Na, no clear cardiac or hepatic explanation 1 day ago
Just speculating, but could this be "vanishing bile duct syndrome ," and severe enough chronic liver disease to provoke the hyponatremia and low ur...
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Hyponatremia with a low urine Na, no clear cardiac or hepatic explanation 2 days ago
An 83 yr old male with Afib on apixaban, cholestatic hepatitis of unclear etiology (MRI of liver normal, no ductal dilation, bili around 4, AST and...
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RE: FeNa 2 days ago
Thank you for your response, Melanie. If it is still on the Steps, we must talk about it! ------------------------------ Anna Vinnikova, MD Assoc...
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RE: Refractory membranous Nephropathy 2 days ago
Dr. Dastoor - From the descriptions you have provided, I would conclude that this is not immunologically refractory PLA2R mediated MN. Rather the...
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RE: Refractory membranous Nephropathy 2 days ago
Thank you for the new information. So it looks like it is still a case of PLA2R1-MN, where anti-PLA2R1 antibodies may be the culprit of this pathog...
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RE: Refractory membranous Nephropathy 2 days ago
My pathologist just called me , and he just had a conversation with @Samih Nasr at Mayo. It is an IgG4 and anti pla2r on biopsy is positive- done ...
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RE: Refractory membranous Nephropathy 2 days ago
I just read all the above comments on an interesting and very unusual case of MN, which is at least initially PLA2R1-associated MN. I think that th...
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RE: AKI & Immune complex GN 2 days ago
She was not on any meds. that's what I thought, no full house no lupus. What is it though!? ------------------------------ M. Samih, MD, FAC...
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RE: AKI & Immune complex GN 2 days ago
Does the absence of full house ( ie IgM and IgA ) and seronegativitiy rule out Lupus ??? was the patient on any medications ?? ----------...
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RE: Refractory membranous Nephropathy 2 days ago
We are sending this biopsy slides to the Mayo clinic for further investigations ..currently she is on max anti proteinuric therapy with ARB, SGLT2i...
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