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Humberto Luna

@renalguy.bsky.social
679 followers 1.4K following 20 posts

Nephrology resident at Uniklinik Halle, Germany. DGfN Researcher focused on immune deficiency in CKD. Nephrology: where small electrolytes cause big problems.

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Humberto Luna @renalguy.bsky.social · 08/06/2026
How do you dialyze chronic HD patients at high bleeding risk? Recent surgery, upcoming surgery, active bleeding, etc At our center: short heparin-free HD when feasible, or citrate CVVHD in ICU for selected cases Do you use saline flushes, citrate IHD, heparin-coated filters, or something else?
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Humberto Luna @renalguy.bsky.social · 03/06/2026
Question for nephrologists: Who places tunneled dialysis catheters at your institution? * Nephrology * Interventional radiology * Vascular surgery At my center, nephrologists are not involved. Curious how common this is.
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Humberto Luna @renalguy.bsky.social · 31/05/2026
Preliminary IMMUPROT data from Uniklinik Halle T-cell responses appear similar in CKD patients with severe albuminuria and those with „just“ reduced eGFR. Kidney dysfunction may be more relevant for T-cell immunity than albuminuria. Further analyses are ongoing. #Nephrology #CKD
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Humberto Luna @renalguy.bsky.social · 25/02/2026
5 kidney transplants in 48 hours. University Hospital Halle
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Reposted by Humberto Luna
JAMA Network Open @jamanetworkopen.com · 19/02/2026
In #ChronicKidneyDisease, higher urinary protein to creatinine ratio was more strongly associated with increased risk of cognitive impairment than lower eGFR, suggesting the importance of proteinuria in cognitive risk assessment. ja.ma/3OvDzof
Four bar graphs show hazard ratios for cognitive impairments based on UPCR levels and eGFR. Graph A: Impairment in global cognition (3MS). Graph B: Impairment in verbal memory. Graph C: Impairment in attention. Graph D: Impairment in executive function.
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Reposted by Humberto Luna
Mike Luckovich @mluckovich.bsky.social · 19/02/2026
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Humberto Luna @renalguy.bsky.social · 24/07/2025
Id like to hear your point of view. Would you have gone for plasma exchange despite normal haptoglobin/bilirubin and a positive Coombs test?
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Humberto Luna @renalguy.bsky.social · 09/12/2024
💡 Chronische Nierenerkrankung schwächt das Immunsystem 🛡️ – Proteinurie 🧪 könnte eine Schlüsselrolle spielen. In meiner Doktorarbeit erforsche ich, wie Proteinurie und Immunfunktion zusammenhängen, um neue Ansätze 🩺 zur Risikominimierung und Behandlung zu entwickeln
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Humberto Luna @renalguy.bsky.social · 09/12/2024
ein typischer Tag im Labor: Forschung und Präzision. 🧪🔬 Nephrologie bedeutet nicht nur Patientenkontakt, sondern auch intensive Arbeit im Labor, um die Nieren besser zu verstehen. #Medizin #Nephrologie #Forschung
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Humberto Luna @renalguy.bsky.social · 29/11/2024
Is it too on the nose to bring my colleagues these Christmas cookies shaped like kidneys? Or should I just embrace the nephro-cheesiness? 🎄🍪 #NephrologyLife
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Humberto Luna @renalguy.bsky.social · 26/11/2024
Is copeptin the missing link in diagnosing SIADH, or is it an overhyped biomarker with limited use? How often do you use it for managing hyponatremia? Would love to hear the thoughts of @kidneyboy.bsky.social and @captainchloride.bsky.social !
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Humberto Luna @renalguy.bsky.social · 25/11/2024
Rituximab in GPA/MPA: 375 mg/m² weekly x4 vs. 1g twice, 2 weeks apart. Is BSA dosing truly better, or does fixed dosing offer equal outcomes with more simplicity? What does your practice prefer?
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Humberto Luna @renalguy.bsky.social · 24/11/2024
When diuretics fail, the albumin-furosemide combo is often considered—but is it science or just tradition? Evidence for its routine use is shaky at best. Are we truly helping our patients or just inflating costs and risks?
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Humberto Luna @renalguy.bsky.social · 16/11/2024
This multicenter observational study recommends a sodium correction of at least 10 mmol/L in patients with severe hyponatremia who have no risk factors. I would be interested to hear Dr. Joel Topf’s @kidneyboy.bsky.social opinion on the matter. evidence.nejm.org/doi/full/10....
evidence.nejm.org
Severe Hyponatremia Correction, Mortality, and Central Pontine Myelinolysis
In clinical practice, sodium correction rates are frequently limited in patients with severe hyponatremia to prevent neurologic complications. The implications of correction rates on overall mortal...
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