Humberto Luna

Humberto Luna

@renalguy.bsky.social

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

664 Followers 1,397 Following 14 Posts Joined Nov 2024
2 weeks ago
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5 kidney transplants in 48 hours. University Hospital Halle

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3 weeks ago
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.

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

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3 weeks ago
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36,256 14,160 469 659
7 months ago
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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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1 year ago

Would love to be added

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1 year ago
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💡 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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1 year ago
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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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1 year ago
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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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1 year ago

Thanks for clarifying! Would you then rely on urinary sodium to differentiate CHF from SIADH? Also, do you find fractional uric acid excretion useful in these cases?

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1 year ago
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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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1 year ago

Thanks for sharing, Joel and Sarah! At my institution, we use xipamide and high-dose furosemide, and if these fail, we escalate directly to CVVHD as we have no experience with 3% NaCl in this setting. How do you decide when to use hypertonic saline?

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1 year ago

Thanks, Joel. Sequential nephron blockade sounds comprehensive! Have you had experience combining proximal, loop, and distal tubule blockers simultaneously (e.g., acetazolamide, loop diuretics, and thiazides)? Curious how effective and safe you’ve found this approach

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1 year ago

Great point. Do you think there’s ever a scenario where the albumin-furosemide combo is justified, or is it best avoided entirely? Would love to hear your approach in these tough cases

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1 year ago

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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1 year ago

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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1 year ago
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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...

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....

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