
Surgeon with an interest in clinical epi/causal inference currently @HarvardEpi @HarvardChanSPH and @MGHmedicine from @uniklinik_hd.RT≠endorsement
Heidelberg / Boston
Joined December 2009
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I’m happy to share our latest publication on CRC risk after polypectomy in @Gut_BMJ.
gut.bmj.com/content/early/20…
Georgios Polychronidis retweeted
Please retweet for dissemination within the HPB community! Great opportunity for young surgeons in Europe. Read the details for applying in the image and please do consider to apply if you fit the requirements
It’s time to find the 4th person for our international clinical and research HPB fellowship @HpbKarolinska
starting September 2025! Please apply before January 6. Previous fellows @Giampaolo_Perri & @TimTransplant have been excellent & current fellow @nebbia_martina is great!
Georgios Polychronidis retweeted
Happy Thanksgiving with the most impressive KM curve you’ll see today.
PFS for first line nivo/ipi vs chemo in MSI-H mCRC.
🛻 Truck test: <0.001
nejm.org/doi/full/10.1056/NE…
Georgios Polychronidis retweeted
Risk ratios, odds ratios and the risk difference
#Education by @racherichardson @dwan_kerry @afkanellopoulou @cochranecollab @cochranemthds
Link: bit.ly/3XL7H03
Georgios Polychronidis retweeted
We are giving away a signed copy of new 2nd Edition of 'Analysis of #CategoricalData with #RStats' by @Chris_Bilder and @TomLoughin. Just like, repost, and follow to be in with a chance! Winner announced on Monday. routledge.com/Analysis-of-Ca… #Statistics #DataScience @CRC_MathStats
Georgios Polychronidis retweeted
Many thanks to @cw_michalski @UniHeidelberg team for the kind invite to present at Grand rounds. Great hospitality and a packed day with surgery, research and fruitful discussions. Not everywhere you get 1 robot Whipple and 2 LAPCs in one day 😅🙌🏻 . – at Heidelberg, Germany
Georgios Polychronidis retweeted
#GUTAbstract by @YPolychronidis @MingyangSong3 et al on
"Risk of colorectal neoplasia after removal of conventional adenomas and serrated polyps: a comprehensive evaluation of risk factors and surveillance use" via
bit.ly/3TdYXOm
Paper: bit.ly/3ThfbGx
@HarvardChanSPH @HarvardEpi @MGH_GI @MGH_CTEU #ColorectalCancer
Georgios Polychronidis retweeted
Riesgo de neoplasia colorrectal después de la extirpación de adenomas convencionales y pólipos.
vía gut.bmj.com/content/early/20…
@Gut_BMJ @HarvardChanSPH @HarvardEpi @MGH_GI @MGH_CTEU
#CancerColorectal #saludigestivo
Georgios Polychronidis retweeted
#GUTAbstract by @YPolychronidis @MingyangSong3 et al on
"Risk of colorectal neoplasia after removal of conventional adenomas and serrated polyps: a comprehensive evaluation of risk factors and surveillance use" via
bit.ly/3TdYXOm
Paper: bit.ly/3ThfbGx
@HarvardChanSPH @HarvardEpi @MGH_GI @MGH_CTEU #ColorectalCancer
Georgios Polychronidis retweeted
8. A 12 year, 180,000 person randomised trial on eradication of Helicobacter pylori, which causes up to 90% of gastric cancers
The number of people needed to treat, to prevent one gastric cancer, was 141
nature.com/articles/s41591-0…
Georgios Polychronidis retweeted
The history and physical examination remain the cornerstone for evaluation of acute abdominal pain, but imaging methods have improved diagnostic precision and shortened the time to diagnosis. Read the full review on acute abdomen: nej.md/4cK1QOd
Georgios Polychronidis retweeted
Prognostic value of total tumor volume in CRC liver metastases
@OncologyAdvance
doi.org/10.1016/j.ejca.2024.…
🔎post-hoc of CAIRO5
👉Tumor total volume, but not RECIST 1.1 is prognostic for survival outcomes
👉5-yr Os 72% for TTV of 3 mL vs 7% for TTV of 300 mL
@myESMO
⚠️Highest risk elevation of CRC associated with high-risk adenomas and serrated polyps particularly high in the first 3 years after the index colonoscopy.
📋The use of surveillance colonoscopy mitigated the risk elevation of CRC associated with high-risk polyps.
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Special thanks to my mentor @MingyangSong3 and all collaborators as well as the DFG @dfg_public for the support of my postdoctoral fellowship at the great @HarvardChanSPH @HarvardEpi and @MGH_CTEU !
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Georgios Polychronidis retweeted
Don't miss out!
@CAUSALab has partnered w/@CEMFIsumschool
for a NEW course taught by @_MiguelHernan.
Course: Causal Inference for Health and Social Scientists
Date: 8/26-8/30
Location: Madrid, Spain
Applications due June 14, 2024! Learn more + apply: cemfi.es/programs/css/course…
Georgios Polychronidis retweeted
Sharing our Heidelberg experience on modified Appleby procedure #IHPBA2024 #Capetown 🇿🇦 @surgery_hps @Mo_Saeedi_Surg
Pre-operative 3 phases CT ✔️
Early determination of applicability of Appleby ✔️
Intraoperative Flow metry of liver perfusion ✔️
-> Modified Appleby is safe 👌🏻
Best way to start your IHPBA day, talk on surgical management of IPMN/pancreas cysts by @cw_michalski #ihpba
Georgios Polychronidis retweeted
📢 It's that time of year again!
🤝 We are now recruiting the next intake of Editor Assistants to join the editorial teams of BJS and @BjsOpen
📆 Deadline for applications is 30th April 2024
🙌 Reposts would be greatly appreciated!
😷 Find out about more about this exciting opportunity below...
#LeadingSurgicalEducation
Georgios Polychronidis retweeted
Historic surgical "I have a comment..." moment:
Richard Cattell's comment on a presentation at the Southern Surgical in 1952 in which he described what would later become known as the "Cattell-Braasch" maneuver when it was finally published in 1960, some *8 years* later. 🧐
Georgios Polychronidis retweeted
Just published: ground-breaking study of over 23,000 RCTs in Cochrane reviews. Trials hugely underpowered for true effects. Consequently, “statistically significant” estimates seriously overestimate actual treatment effects, can’t trust them. evidence.nejm.org/doi/abs/10…




































