Eric Edison

Senior Fellow in Endourology
/ Guy's Hospital / London

[Youssef @YoussefUrol]

Join MEASURE competition @BAUSurology annual meeting 2026, London Olympia

When SIZE really MATTERS! Think we can measure bladder lesions endoscopically? Prove it! with a chance to win £££

Find us @ BSoT booth - REGISTER via
https://t.co/ioCX8csgjw

from @GuysUrology @BSoT_UK, @AmbuEurope , @storz_karl
@nairajesh @ElsieMensah4 @Yasminabugh @MartiSpazzi

[Ben Challacombe @benchallacombe]

Big day for @GSTTnhs congratulations to all.

[Daron Smith @EndoLuminalEndo]

@lithohlr kicking off the @KARLSTORZUK @BAUSendourology @CookMedSurg URS/FURS

Reference to linear vs 3D measurements and volume… and implications for number of fragments or time to dust…

Surgery = planning, strategy and THEN the operation!!

@zara_gall @UrologyUK

[Dr. Chacón-Lozsán F .'. @franciscojlk]

🩻Contrast-induced AKI:
one of the biggest myths still shaping clinical decisions

For decades we were taught:

👉 “Contrast damages the kidneys”
👉 “Avoid CT with contrast in CKD”
👉 “Hydrate, protect, delay imaging if needed”

But what if… most of this is wrong?🤔

->The uncomfortable reality

Modern evidence shows:

👉 Low-osmolar contrast rarely causes true nephrotoxicity
👉 Even in CKD, AKI, and ICU patients
👉 The risk is often overestimated—or nonexistent

So where did the fear come from?

📍 1950s high-osmolar contrast (actually toxic)
📍 Poorly controlled observational studies
📍 “Creatinine rise = contrast injury” assumption

👉 Correlation became causation
👉 And the dogma stayed

⚠️What recent data tells us

✔ No difference in AKI rates with vs without contrast
✔ No benefit from bicarbonate, NAC, or aggressive hydration
✔ Even ICU and AKI patients show no worsening outcomes

->Translation to real life

👉 The patient was going to develop AKI anyway...Not because of contrast!!

->The real problem: “Renalism”

👉 Avoiding necessary imaging
👉 Delaying diagnosis
👉 Choosing inferior tests

And that leads to:

❌ Missed PE
❌ Delayed sepsis source control
❌ Worse outcomes

->Clinical mindset shift

Instead of asking:

👉 “Will contrast harm the kidneys?”

We should ask:

👉 “Will NOT doing the scan harm the patient?”

->Who still deserves caution?

✔ eGFR <30
✔ Severe hemodynamic instability
✔ Multiple nephrotoxins

Even then:

👉 Optimize volume
👉 Minimize dose
👉 Don’t delay critical imaging

🤓Bottom line

✔ Contrast nephrotoxicity exists… but is rare
✔ The fear is bigger than the risk
✔ The harm of NOT imaging is often greater

In critical care

👉 We don’t treat creatinine
👉 We treat patients

And sometimes…

👉 The most dangerous thing is NOT the contrast

👉 It’s hesitation.

📃Reference
Florens N, Demiselle J.
Kidney360 7: 445–449, 2026. doi: https://t.co/CWzi7WC9Wx

[Rod Dunn @redunndant]

I review the statistics in ~200 manuscripts a year for some of the top urology journals in the world.

Here's what I actually do — and the mistakes I see in almost every paper. 🧵

[Guy's Urology News @GuysUrology]

How to build a department over 30 years. 1996-2026. Friends, mentors, colleagues. @GuysUrology 26/28 present! sorry to miss @rhz59 @UroNoel

[Guy's Urology News @GuysUrology]

What an emotional day. Last prostate clinic and one stop for @prokarurol before his retirement. Friend, mentor, colleague. 28 yrs service. Innovator, technology enthusiast and true legend of urology. We will all miss him.

[Eric Edison @eedison_uk]

An excellent long weekend at EAU @Uroweb

Grateful for opportunity to present The UROME Study
📈ESBL rising year on year
⚠️ESBL in 9% of all bacterial isolates
⏩️VRE remained stable
☣️Emergence of C. Auris
🧫Fungal speciation important

@GuysUrology

[Youssef @YoussefUrol]

Excellent meeting EAU 26- London

Honoured to present our data highlighting the surgical challenges for robot assisted cystectomy post EBRT

As well as our classic annual Top Ten Tips video - this time for Robotic RPLND

@GSTTnhs @fernando_archie @benchallacombe @GuysUrology
@ElsieMensah4 @Yasminabugh @nairajesh

[Eric Edison @eedison_uk]

Live operating from @GuysUrology at EAU @Uroweb

FANS RIRS with @thomastailly
-2300m3 1100HU stone, 11/13Fr FANS with 7.5Fr scope, Magneto laser, fluid 120cm above patient, suction at -60

@dasgupta telesurgery RARP London &gt; Gibraltar

[Eric Edison @eedison_uk]

Thanks to @MattBultitude for organising

[Eric Edison @eedison_uk]

It has been a pleasure showing around the selected Japanese Urology Association residents @suzuken3001 @hirokit__ and Takashi Okamura for their exchange with EAU @Uroweb. The tour included @GuysUrology observing ureterolysis and nephrectomy.

[Eric Edison @eedison_uk]

Later to Borough Market, Kings pathology museum, the old operating theatre, and then a good old fashioned English pub!

[Prof. Prokar Dasgupta OBE HonFREng @prokarurol]

What a week!
✅Tet Yap ⁦@glassmagazine⁩ delivers his Professorial lecture
✅⁦@MattBultitude⁩ delivers his Presidential lecture at #RSM Urology
✅⁦@benchallacombe⁩ delivers his Professorial lecture
⁦⁦@GuysUrology⁩ ⁦⁦⁦⁦⁦@KingsCollegeLon⁩

[Matthew Bultitude @MattBultitude]

What an honour to deliver my presidential address at the start of my year as @RoySocMed Urology Section President on Friday. Thanks to all those who came and have supported me 🙏

Looking forward to a great academic programme this year.

[Alastair Lamb @LambAlastair]

Another reason why I'm delighted to have joined awesome @GuysUrology team: this morning @ #FridayMorningMeeting a senior colleague invited by @tsoburol to present "My worst case of the year" - a frank warts n' all complication talk

So much #CollectiveLearning
#SurgicalHonesty

[Daron Smith @EndoLuminalEndo]

The UK 🇬🇧 PUrE RCT1 LOWER POLE STUDY for the stone &lt;10mm now published…

https://t.co/yxf4vlA1jM

This link will give FREE ACCESS to the article for 50 days…

[Lewis Hemens @lewishemens]

This is just the beginning - such a vision requires collective effort. If you're driven by tackling foundational questions about our long-term future and want to contribute, we'd love to connect. To learn more - https://t.co/DbaVq3WZiH

[Youssef @YoussefUrol]

Honoured to be part of @GuysUrology excellence, winning on their behalf;

The Best Video of EAU 2025 @Uroweb

“Top 10 Tips in Robotic Tumour Thrombectomy”

Great Team Work in and out of OR
@nairajesh @fernando_archie @benchallacombe @tsoburol @Dr_Kamran_Haq @GSTTnhs
#RoboticTumourThrombectomy

[Daron Smith @EndoLuminalEndo]

#FredPanthier and Renal Stone Volume calculation by AI and predicting LASER treatment times at #EAU25

@OTRAXER