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Juan Carlos Q Vélez, MD @juancarlosqvelez.bsky.social · 16h

When asked by a denier about what proof I have that #UrineMicroscopy makes a difference (often w/a “I’ve been practicing 30 yrs without it”), my answer is that one cannot grasp the full extent of missed information by ignoring a tool when there’s lack of proficiency on how to properly use the tool

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Reposted by Juan Carlos Q Vélez, MD

Arkana Labs @arkanalabs.bsky.social · 2d

Improving biopsy adequacy rates is essential to improving patient care.

To understand more about the renal biopsy adequacy crisis, listen to our podcast: youtu.be/GSUhu9ysNyM?...

#Renal #kidneypath #nephrology #nephsky

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Reposted by Juan Carlos Q Vélez, MD

Arkana Labs @arkanalabs.bsky.social · 2d

Thank you to @juancarlosqvelez.bsky.social, @nephrowhitt.bsky.social, and Dr. Vandana Niyyar for joining @nephrosharma.bsky.social, and @glombandit.bsky.social for this discussion!

#Renal #kidneypath #nephrology #nephsky

Glom Goals: Why Adequacy Matters

Renal pathologists Dr. Shree Sharma and Dr. Tiff Caza sit down with nephrologists Dr. Juan Carlos Velez, Dr. Bill Whittier, and Dr. Vandana Dua Niyyar to discuss the rising renal biopsy inadequacy…

youtu.be

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Juan Carlos Q Vélez, MD @juancarlosqvelez.bsky.social · 4d

#Nephrology Fellowship Program at Ochsner Health in New Orleans #NephSky
youtu.be/oZN8GCKLdRI?...

Nephrology Fellowship {GME Program}

YouTube video by RZ Productions

youtu.be

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Juan Carlos Q Vélez, MD @juancarlosqvelez.bsky.social · 6d

Random dude: “pee is gross”
Pee:

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Juan Carlos Q Vélez, MD @juancarlosqvelez.bsky.social · 8d

Strong signal for better kidney biopsy adequacy favoring 16G needle over 18G (w/ = complication rate) in pediatric pts 12-18 years-old, extending established norm 4 adults. Only 4 children <12, a smaller 18G needle is safer. #KidneyBiopsyAcademy @kidneycon.bsky.social @arkanalabs.bsky.social

aspneph.bsky.social @aspneph.bsky.social · 8d

Adequacy and safety of pediatric native kidney biopsy using 16- and 18-gauge needles

Adequacy and safety of pediatric native kidney biopsy using 16- and 18-gauge needles - Pediatric Nephrology

Background The native kidney biopsy is an important diagnostic procedure in pediatric nephrology. Recent meta-analyses did not find the size of the needle as a risk factor for bleeding complications,…

buff.ly

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Reposted by Juan Carlos Q Vélez, MD

Arkana Labs @arkanalabs.bsky.social · 10d

How did the frequency of inadequate renal biopsies go from <1% in 2004 up to 27% in 2025?

Listen to our podcast for more insight on this crisis: youtu.be/GSUhu9ysNyM?...

#renal #kidneypath #nephsky #renalsky #nephrology

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Reposted by Juan Carlos Q Vélez, MD

Arkana Labs @arkanalabs.bsky.social · 10d

Thank you to @nephrowhitt.bsky.social, @juancarlosqvelez.bsky.social, and Dr. Vandana Niyyar for joining @nephrosharma.bsky.social, @glombandit.bsky.social, for this vital conversation.

#nephsky #renalsky #kidneypath

Glom Goals: Why Adequacy Matters

Glom Goals · Episode

open.spotify.com

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Reposted by Juan Carlos Q Vélez, MD

Omid S. Alavijeh @oalavijeh.bsky.social · 10d

🚨 New paper alert 🚨

Proud to share our work in AJKD: “Quantifying APOL1, HLA, and other genetic contributions to unexplained kidney failure”

What drives kidney failure when the cause is unknown? 🧵

www.ajkd.org/article/S027...

Quantifying APOL1, Human Leukocyte Antigen, and Other Genetic Contributions to Unexplained Kidney Failure

Unexplained kidney failure (uKF) affects 15% of individuals needing kidney replacement therapy. The lack of a clear diagnosis creates uncertainty about recurrence, familial risk, and trial eligibility...

www.ajkd.org

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Reposted by Juan Carlos Q Vélez, MD

Stephanie Torres @stephanietr612.bsky.social · 11d

La enfermedad renal no ha parado, así que yo tampoco. Apóyame y ayúdame a alcanzar mi meta. Seguimos! #KidneyWalk

Kidney disease hasn’t stopped, so I won’t either. Join me and help me reach my goal for kidney patients. #KidneyWalk #kidneywalk2025

www.kidneywalk.org/dallas/DrTor...

Stephanie's Fundraising Page at 2025 Dallas Fort Worth Kidney Walk

Why I Walk? I walk because I see firsthand how tough kidney disease is for the patients I work with every day. Their strength and resilience inspire me, and that’s why I’m walking — to raise aware...

www.kidneywalk.org

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Juan Carlos Q Vélez, MD @juancarlosqvelez.bsky.social · 12d

a man in a white shirt and tie is laughing and looking at the camera .

ALT: a man in a white shirt and tie is laughing and looking at the camera .

media.tenor.com

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Reposted by Juan Carlos Q Vélez, MD

Yale Nephrology @yalenephrology.bsky.social · 13d

Check out this article by Dr. Justin Belcher & many collleagues from Yale GI showing kidney tubular secretion can distinguish ATI from other AKI causes in cirrhosis patients - a game-changer for treatment decisions! @asnpublications.bsky.social #CJASN🔬

journals.lww.com/cjasn/abstra...

journals.lww.com

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Juan Carlos Q Vélez, MD @juancarlosqvelez.bsky.social · 14d

🌋 gotta steal that adjective

Reposted by Juan Carlos Q Vélez, MD

Joel Topf @kidneyboy.bsky.social · 14d

Sperati uses the Osler quote "He who studies medicine without books sails an uncharted sea, but he who studies medicine without patients does not go to sea at all." to critique the GlomCon model that provides books but does not provide patients #GlomCon

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Reposted by Juan Carlos Q Vélez, MD

Arkana Labs @arkanalabs.bsky.social · 15d

LISTEN TO THE PODCAST HERE: youtu.be/GSUhu9ysNyM?...

#GLOMGOALS #renalsky #pathsky #kidneypath #nephrology #kidneybiopsy #biopsyadequacy

Glom Goals: Why Adequacy Matters

Renal pathologists Dr. Shree Sharma and Dr. Tiff Caza sit down with nephrologists Dr. Juan Carlos Velez, Dr. Bill Whittier, and Dr. Vandana Dua Niyyar to discuss the rising renal biopsy inadequacy…

youtu.be

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Reposted by Juan Carlos Q Vélez, MD

Arkana Labs @arkanalabs.bsky.social · 15d

What exactly is an inadequate renal biopsy? Why are 27% of biopsies inadequate? What can be done to fix this?

Check the thread to listen to @nephrosharma.bsky.social, @glombandit.bsky.social, @nephrowhitt.bsky.social, and @juancarlosqvelez.bsky.social discuss this challenge. #RenalPath #RenalSky

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Juan Carlos Q Vélez, MD @juancarlosqvelez.bsky.social · 17d

Could be. Let me dig my archives

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Juan Carlos Q Vélez, MD @juancarlosqvelez.bsky.social · 18d

My vibe when reviewing a new paper proof

a man in a suit and tie is making a funny face while sitting on a stage .

ALT: a man in a suit and tie is making a funny face while sitting on a stage .

media.tenor.com

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Juan Carlos Q Vélez, MD @juancarlosqvelez.bsky.social · 18d

#UrinarySediment #UrineMicroscopy

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Juan Carlos Q Vélez, MD @juancarlosqvelez.bsky.social · 19d

My inflection . is case-dependent. For AKI-RRT in which we r watching 4 recovery, 300 ml/day is meh and not enuff 2 wean off RRT; in shock ATN, 300ml/day is 👍 because I may be able to convert it into 1.5-2.0 L w/high dose diuretics if needed, whereas <30ml/day means RRT is imminent

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Reposted by Juan Carlos Q Vélez, MD

Nature Reviews Nephrology @natrevneph.nature.com · 20d

Two decades of nephrology research: progress and future challenges

Nature Reviews Nephrology, Published online: 19 September 2025; doi:10.1038/s41581-025-00996-5Since publication of the first issue of Nature Reviews Nephrology 20 years ago, advances across various subspecialities of nephrology have provided insights into disease processes and led to the development of new therapeutics for people with kidney disease. However, despite this progress, many kidney diseases remain untreatable, the costs of kidney disease care are immense, and vast inequities persist in disease burden and access to care. In this Viewpoint, we ask experts from several key subspecialties of nephrology to reflect on progress made over the past 20 years, remaining challenges and the steps needed to move the field forward.

www.nature.com

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Juan Carlos Q Vélez, MD @juancarlosqvelez.bsky.social · 19d

Looking forward to seeing some pics 🔬

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Juan Carlos Q Vélez, MD @juancarlosqvelez.bsky.social · 19d

I haven’t. We presented an observational report of low solute hypoNa in the outpatient setting last year at #KidneyWk (paper in progress). In a small subset of patients with pre&post data, increase in solute intake led to rise in sNa, but mostly driven by increase in Na and protein intake.

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Juan Carlos Q Vélez, MD @juancarlosqvelez.bsky.social · 20d

Kidney biopsy revealed IgA nephropathy M1 E1 S0 T0 C1

Reposted by Juan Carlos Q Vélez, MD

Arkana Labs @arkanalabs.bsky.social · 23d

The renal biopsy adequacy crisis isn't slowing down.

For insight on how the renal community might begin to address this challenge, listen to our podcast with @nephrosharma.bsky.social, @glombandit.bsky.social, @nephrowhitt.bsky.social, and @juancarlosqvelez.bsky.social.

Glom Goals: Why Adequacy Matters

YouTube video by Arkana Laboratories

www.youtube.com

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