Transplant Surgeon @UMMC | Associate Professor @UMmedschool | clinical & basic science researcher | #liver #kidney #pancreas #transplantation #stemcells #islets
Baltimore, MD
Joined February 2012
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Thank you, @ttsorg, for choosing our article for the February 2021 issue cover of @TransplantJrnl! #Patient of #courage | #collaborative #teamwork #TransplantTwitter journals.lww.com/transplantj…
Raphael Meier MD-PhD retweeted
Here is our latest Xenotransplantation Literature Update for January –June 2026. This update highlights key publications and insights in the field during this time frame.
I am deeply grateful to @meier_raphael for his guidance and mentorship
onlinelibrary.wiley.com/doi/…
Raphael Meier MD-PhD retweeted
Very glad to see this now in print: "Global Consultation for Clinical Xenotransplantation: International Xenotransplantation Association Consensus and Communiqué Update" onlinelibrary.wiley.com/doi/…
Raphael Meier MD-PhD retweeted
Thank you to Dr. @AndrewMCameron for joining the UMDOS as the 2026 Robert W. Buxton Lecture Keynote Speaker! His talk, entitled "Changing the Rules in Transplantation: Separating Science from Stigma", highlighted the miracle of liver transplant. #Surgery #Transplant #Maryland #Hopkins #GrandRounds
Raphael Meier MD-PhD retweeted
XenoBulletin | June 2026 | AJT
@meier_raphael @JoeMLadowski
amjtransplant.org/news-do/xe…
@amjtransplant
Raphael Meier MD-PhD retweeted
Great discussions this weekend at 2nd Richard Slayman Clinical #Xenotransplant Workshop hosted @nyulangone. Inspiring to see patients, scientists, physicians, industry & regulators all coming together to move clinical xenotransplant forward.
Even flying pig cookies…@DrMaceyLevan
The @amjtransplant has launched a dedicated #Xenotransplantation series and we have the privilege to lead it! Our inaugural AJT XenoPulse synthesizes the first nine patients who received xenotransplants. Excited to shape this w/ @JoeMLadowski & @SandyFeng8 amjtransplant.org/article/S1…
Raphael Meier MD-PhD retweeted
Just published @amjtransplant: Impact of Donor and Recipient Sex on Graft Function among Deceased Donor Kidney Recipients. sciencedirect.com/science/ar…. Congrats to the team! @shimulshah73 @LVRiella @meier_raphael @mghtransplantmd @MGHSurgery
Raphael Meier MD-PhD retweeted
Hello, Moon. It’s great to be back.
Here’s a taste of what the Artemis II astronauts photographed during their flight around the Moon. Check out more photos from the mission: nasa.gov/artemis-ii-multimed…
ALT A crescent Earth setting behind the Moon\u2019s horizon. Credit: NASA
ALT Earth setting behind the Moon as seen by the Artemis II crew. Over half the left side of the image is filled by the gray lunar surface, pocked with craters. Credit: NASA
ALT A close view of the Moon. Jagged circles of craters dot the gray surface, fading to dark on the left side of the image. Credit: NASA
ALT A crescent Earth setting behind a hemisphere of the Moon. Credit: NASA
Productive lab meeting in Paris with @AlexandreLoupy and team, @Raynaud_Maths & Fariza Mezine | @ParisTxGroup @UMmedschool #Xenotransplantation #Transplantation #MachineLearning #OrganPreservation #AcademicMedicine #Surgery #Innovation #AdvancingScienceOneSushiRollAtATime
Congrats @HurstDanielj for this excellent work!!
Recently, a patient in China survived >170d with a pig liver. @meier_raphael and I, along w/other colleagues, took the opportunity to write a new article on the future of this field: "Liver Xenotransplantation: Ethical and Societal Implications"
onlinelibrary.wiley.com/doi/…
Great weekend at the @_ILTS_ Consensus Conference 2026 in Washington, D.C. Glad to contribute with Group 2 on HCC biomarkers in liver transplantation and to reconnect with outstanding colleagues. Congratulations to @ValeriaMas11 and the organizing team #LiverTransplantation #HCC
How much donor–recipient age mismatch is acceptable in #liver #transplantation?
In >111,000 OPTN/UNOS transplants:
• ≥20y older donors → inferior graft survival
• ≥50y difference → >20% early adverse events
• Younger grafts perform best
Supports age-matching strategies
Fascinating study from @Penn team on xenoliver support. Pig-to-human decedent extracorporeal liver cross-circulation for up to 3.5 days, w/ one case of total hepatectomy showing preserved metabolic support. Important step for ALF, major unmet clinical need nature.com/articles/s41591-0…
Raphael Meier MD-PhD retweeted
Surgery is a "wicked" environment: feedback is delayed, noisy, and often biased. My essay on why experience doesn't always equal mastery, and how to learn when the feedback loops are broken.
leezhaomd.org/post/the-wicke…
#MedTwitter #Surgery #MedEd
🦾🦾🦾
Honored to share our newly published article “The First Pig-to-human Liver Xenotransplantation From Genetically … . Transplantation journals.lww.com/transplantj…”
Sincere thanks to Prof. Ezzelarab, @AlexandreLoupy, @meier_raphael and @BurcinEkser for their insight and mentorship.
Raphael Meier MD-PhD retweeted
Honored to share our newly published article “The First Pig-to-human Liver Xenotransplantation From Genetically … . Transplantation journals.lww.com/transplantj…”
Sincere thanks to Prof. Ezzelarab, @AlexandreLoupy, @meier_raphael and @BurcinEkser for their insight and mentorship.