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Simon Mooijaart

@drsimonpm.bsky.social
87 followers 71 following 52 posts

Professor of #Medicine and #Geriatrics 🏡 Lives: Leiderdorp, NL 🏥 Works: Leiden University Medical Center, Leiden, NL 🤩 Likes: 🚴🏻 #cycling, 📸 #photography, 🎶 #music Mostly English 🇺🇸 / Sometimes Dutch 🇳🇱 Views my own

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Simon Mooijaart @drsimonpm.bsky.social · 18/11/2025
OpenAI is exploring “consumer health tools”. If an AI is giving health advice, that’s medicine at scale. And if it’s medicine, three things are non-negotiable: 1️⃣ Doctors in the loop 2️⃣ Older people in the design – not as an afterthought 3️⃣ Data that actually contains older people buff.ly/h4bkdCJ
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Simon Mooijaart @drsimonpm.bsky.social · 15/11/2025
The system isn’t broken. It’s obsolete. We’re not overwhelmed by ageing. We’re paying the price for decades of lazy design. The healthcare system was never built for older people. It was built for short-term fixes, single diseases, and people who recover fast. buff.ly/gpXtDpR
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Nearly 150,000 aged 90 and above wait 12 hours in England’s A&Es each year
Older people left in their own excrement and wet beds for hours and forced to watch others die, Age UK report finds
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Simon Mooijaart @drsimonpm.bsky.social · 25/10/2025
If you read (social) media about AI, you almost become afraid of what AI will do to healthcare. Personally, I’m more afraid of what will become of care without AI. Despite the hype, the mistakes, the hallucinations, the threats I believe AI can make care better. ❓ What do you think? #AI #MedSky
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Simon Mooijaart @drsimonpm.bsky.social · 19/10/2025
People aged over‑70 spend more time online than 40‑somethings. “Is that going to work for older people? Can they even use it? Reality: yes they can! Read further: buff.ly/UJ3Bw8N #AI #medsky #geriatrics buff.ly/WtykNYL
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Simon Mooijaart @drsimonpm.bsky.social · 26/08/2025
“Who am I to stop taking my medication?" Patient Perspectives on Antithrombotic Therapy in Advanced Cancer #cancer #thrombosis #geriatrics #medsky #medication #sdm #palliative oncodaily.com/voices/simon...
oncodaily.com
Simon Mooijaart: Patient Perspectives on Antithrombotic Therapy in Advanced Cancer - OncoDaily
Simon Mooijaart: Patient Perspectives on Antithrombotic Therapy in Advanced Cancer / Anette Arbjerg Højen, antithrombotic therapy, cancer, Carme Font, Elin
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Simon Mooijaart @drsimonpm.bsky.social · 25/08/2025
🧠 "#AI not one-size-fits-all”? It’s not even one thing! #AI is many has many faces: 🧮 Predictive models: Structured data — labs, claims, vitals — outcomes, stratify risk,. 🗣️ NLP, LLMs, and Generative AI: Messy, human language — summarize, interpret, engage Read more on LinkedIn: buff.ly/mbYjbxB
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Simon Mooijaart @drsimonpm.bsky.social · 24/08/2025
“𝗪𝗵𝗼 𝗮𝗺 𝗜 𝘁𝗼 𝘀𝘁𝗼𝗽 𝘁𝗮𝗸𝗶𝗻𝗴 𝗺𝘆 𝗺𝗲𝗱𝗶𝗰𝗮𝘁𝗶𝗼𝗻?” - 𝘢 𝘱𝘢𝘵𝘪𝘦𝘯𝘵 𝘢𝘴𝘬𝘦𝘥 𝘪𝘯 𝘰𝘶𝘳 𝘳𝘦𝘤𝘦𝘯𝘵 𝘴𝘵𝘶𝘥𝘺. That question stayed with me. When doctors want to stop medication, wefocus on the clinical reasoning: Risk of bleeding. Limited benefit. A burden. ✔️ All true — but not enough. Read more on LinkedIn buff.ly/QxOg1f5
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Simon Mooijaart @drsimonpm.bsky.social · 21/08/2025
❓ 𝐓𝐡𝐞 𝐦𝐨𝐬𝐭 𝐩𝐨𝐰𝐞𝐫𝐟𝐮𝐥 𝐭𝐨𝐨𝐥 𝐢𝐧 𝐦𝐲 𝐜𝐚𝐫𝐞 𝐟𝐨𝐫 𝐨𝐥𝐝𝐞𝐫 𝐩𝐞𝐨𝐩𝐥𝐞? 𝐋𝐢𝐬𝐭𝐞𝐧𝐢𝐧𝐠! ➡️ 𝐀𝐧𝐝 𝐭𝐡𝐚𝐭 𝐢𝐬 𝐞𝐱𝐚𝐜𝐭𝐥𝐲 𝐰𝐡𝐲 𝐈 𝐛𝐞𝐥𝐢𝐞𝐯𝐞 𝐢𝐧 𝐭𝐡𝐞 𝐩𝐫𝐨𝐦𝐢𝐬𝐞 𝐨𝐟 𝐀𝐈 𝐢𝐧 #Geriatrics Reed more on LinkedIn www.linkedin.com/feed/update/... #medmastodon #ai #chatbot
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Simon Mooijaart @drsimonpm.bsky.social · 15/08/2025
Help, my AI has a delirium 😵💫 Last week - as a test - I asked an AI "who is Simon Mooijaart?" It gave me a confident, detailed answer... about someone else entirely 🙃 As a geriatrician, this instantly reminded me of delirium - a condition I see daily at the bedside: #delirium 🧵 1/8
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Eric Widera, MD @ewidera.bsky.social · 21/05/2025
Well said. Not including older adults in research studies about diseases that primarily affect older adults is just ageism, pure and simple. slate.com/technology/2...
slate.com
The Most Common Kind of Cancer Patient in America Is the One We Study the Least
At 82, would former President Joe Biden even qualify for the trials he funded?
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Nathan Davies @profnathandavies.bsky.social · 30/04/2025
Incredible evening launching @acha020.bsky.social having a peek into the amazing research and community work for the population of East London planned with the fabulous @proflizsampson.bsky.social & @adamgordon1978.bsky.social
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Alasdair MacLullich @amaclullich.bsky.social · 27/04/2025
t.co/WCgXPtK7Vc
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Alasdair MacLullich @amaclullich.bsky.social · 27/04/2025
☑️ The original CAM does work when used by trained raters ‼️ But an unvalidated CAM variant - with no cognitive testing/interview - is widely used in clinical practice ⚠️ This 'CAM-Lite' has dangerously low sensitivity ➡️ New blog on this critical issue in #delirium care Link below⏬
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Simon Mooijaart @drsimonpm.bsky.social · 25/04/2025
🥳 Superproud of this bunch: the management team of the CoClarity #RCT. Submitted the trial protocol today. #CoClarity: A Shared Decision Support Tool to reconsider the use of Anti-Thrombotic Therapy in patients with #cancer in the last phase of life: ✅ Lower risk of #thrombosis 🛑 Risk of bleeding
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Simon Mooijaart @drsimonpm.bsky.social · 19/04/2025
Very nice #thesis defense by Jonathan Bogaerts earlie this week. 🧑🏻‍🎓 Depresribing of antihypertensive medication in the very old, an inspiring topic for lively (and funny) discussion! 🥳 Congratulations, Jonathan! #geriatrics #hypertension #medsky
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Adam Gordon MBE @adamgordon1978.bsky.social · 09/04/2025
The latest in our @acha020.bsky.social blog series - Shared Opportunities and Challenges - ACHA forges a research collaboration with the LUMC Centre for Medicine for Older People. @wilcoachterberg.bsky.social @drsimonpm.bsky.social @proflizsampson.bsky.social acha.qmul.ac.uk/research/sha...
acha.qmul.ac.uk
Shared Opportunities and Challenges – ACHA forges a research collaboration with the LUMC Centre for Medicine for Older People - Academic Centre for Healthy Ageing
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Simon Mooijaart @drsimonpm.bsky.social · 24/03/2025
Use of #AI decreases with increasing age. ✅ #AI offers a lot of promises also in care for older people ❌ #AI is not tailored to needs of older people ➡️ We have work to do 🔗 JAMA, buff.ly/2jxuUhz #geriatrics #digital #medsky
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Simon Mooijaart @drsimonpm.bsky.social · 21/03/2025
Very nice #thesis by Jonathan Bogaerts: 📓 High blood pressure and its treatment in the very old - balancing benefits and risks 🧑‍🎓 Defense April 16th at #Leiden University 😀 really looking forward #geriatrics #hypertension #medsky
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Simon Mooijaart @drsimonpm.bsky.social · 20/02/2025
Nice presentation by #PhD candidate Denise Abbel about the complex choice to use #antithrombotic therapy in patients with #cancer in the last phase of life: ✅ prevention of thrombic events ❌ risk of bleeding ❓what is more important? #oncology #geriatrics
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Simon Mooijaart @drsimonpm.bsky.social · 26/01/2025
Nice hike 🥾 exploring the surroundings of the Symposium 😀
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Simon Mooijaart @drsimonpm.bsky.social · 26/01/2025
Signing in at the European #Pancreas Islet Transplantation Association Symposium for a talk tomorrow on #transplantation in older people 📍Igls, Innsbruck, #Austria #geriatrics
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Simon Mooijaart @drsimonpm.bsky.social · 26/01/2025
🥳 Kudos to Eva Kempers! 📝 Our study in #Thrombosis and #Haemostasis explores anticoagulant use in life-limiting diseases ➡️ most patients continued until end-of-life with comparable risks of bleeding or clots after stopping 🔗 10.1055/a-2524-5334 #palliativecare #geriatrics
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Maxime Frelaut @mfrelaut.bsky.social · 30/12/2024
🚨 Excited to share our work : "Systemic treatment among frail older patients with cancer". ✅ 3-month OS 81.8% when guided by geriatric assessments. ⚠️ Loss of ADL and cumulative frailty factors associated with poorer survival 🔗https://www.geriatriconcology.net/article/S1879-4068(24)00450-8/abstract
geriatriconcology.net
Systemic treatment among frail older patients with cancer: An observational cohort
In the past, certain oncological therapies were not offered to frail older patients. However, the advancement of geriatric oncology, tailored chemotherapy regimens, the introduction of new treatments, and the optimization of supportive care have contributed to enhancing the therapeutic margin. We aimed to evaluate the benefit of systemic treatment among older adults by assessing the three-month survival of older frail patients with metastatic cancer.
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The Lancet @thelancet.com · 28/12/2024
Artificial intelligence (AI) in health care has seen remarkable growth. What is the potential of AI to improve care management, clinical decision-making efficiency, and more? 📑 Read this Review in The Lancet Digital Health: bit.ly/3DwAJtD
Figure: Randomised controlled trials of artificial intelligence in clinical practice across countries and specialties. Copyright: 2024 The Author(s). Open Access under CC BY-NC-ND 4.0 license
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Eric Topol @erictopol.bsky.social · 28/12/2024
On "Face Age" >300,000 people have taken Novos free #AI test (a company that sells longevity kits & supplements) without published data wsj.com/health/welln... "People who use face-age tests to estimate their biological age should take the results with a grain of salt" @andrewlbeam.bsky.social
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Simon Mooijaart @drsimonpm.bsky.social · 27/12/2024
Attitudes of medical researchers towards #AI #chatbots: ✳️ interested ❓ more training needed Nice study in The Lancet Digital Health! 🔗 buff.ly/4gwhLSK #medsky
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Simon Mooijaart @drsimonpm.bsky.social · 24/12/2024
#ChatGPT passes Japanese #Medical Licensing #Exam ✅ The correct response rate reached the qualification level ❓Performance varied by year / question type ➡ My take: development needed (medical #LLM), but soon will pas with flying colors
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Performance Assessment of GPT 4.0 on the Japanese Medical Licensing Examination - Current Medical Science
Objective To evaluate the accuracy and parsing ability of GPT 4.0 for Japanese medical practitioner qualification examinations in a multidimensional way to investigate its response accuracy and…
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Jugdeep Dhesi @jkdhesi.bsky.social · 23/12/2024
40% of ED attendances are over 65yrs. Average wait for admission in>75yrs =12 hours. 10% attendances from care homes. Waiting is especially bad for older -risk of delirium, deconditioning, acute kidney injury/LOS. But much could be done to avoid these probs @gerisoc.bsky.social @rcem.bsky.social
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Vilja Oired @oired.bsky.social · 23/12/2024
Older AI (LLM) on the brink of needing a nursing home…! Maybe it’s time we start thinking about digital elder care! 😉
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Simon Mooijaart @drsimonpm.bsky.social · 22/12/2024
Sunday afternoon ride on Traning Peaks Virtual 🚴‍♂️ #cycling #TPV 🔗 tpks.ws/IMLFGMTKUIJKNWYA2WCXJGA5WY
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Simon Mooijaart @drsimonpm.bsky.social · 21/12/2024
🌧️ 💨 ☁️ Typical depressingly grey, cloudy, windy and rainy weather on the shortest day of the year 🌧️ 💨 ☁️ BUT: ☀️ 😎 longer days, more light and more sun from today onwards ☀️ 😎
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Simon Mooijaart @drsimonpm.bsky.social · 21/12/2024
To think about during this Holiday Season: “… encounters with #friends were seen as more pleasant than with #family”… 😳 I will be enjoying both myself 😀 Why later life can be a golden age for friendship
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Why later life can be a golden age for friendship
Our social goals change in surprising ways over our lifespan – and understanding this can help us build fulfilling connections with others, research suggests.
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Eric Topol @erictopol.bsky.social · 20/12/2024
The link between physical inactivity and accelerated brain aging alz-journals.onlinelibrary.wiley.com/doi/full/10....
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Simon Mooijaart @drsimonpm.bsky.social · 20/12/2024
🤩 Very excited and proud to have received the #PhD #thesis of Carlijn Voorend 📖 Appropriate care for older people approaching #kidney failure. Design and implementation of geriatric assessment in kidney care 👩‍🎓 Looking forward to the defense on January 27th ! #geriatrcs #nephrology #gerisky
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Simon Mooijaart @drsimonpm.bsky.social · 19/12/2024
✳️ Exciting day for the LUMC #Research Theme on #Lifecourse #Epidemiology and #Geroscience on January 27th 2025. 🤩 Looking forward to a lot of inspiration by our talented #PhD and #Postdoc researchers! #geriatrics
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Simon Mooijaart @drsimonpm.bsky.social · 16/12/2024
Semantics or not? I would say: in this study, #statins did not “improve” survival, but “statin usee associated with better survival compares to non-statin use”. ➡️ “Improves” to me suggests it became better over time, which suggests effectiveness of intervention. ❓What do you think?
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Simon Mooijaart @drsimonpm.bsky.social · 15/12/2024
🥳 Our latest publication in #Thrombosis Research! 📖 Emily Martens led this important study on #deprescribing #antithrombotic therapy in end-of-life #cancer care ❗ Lots of practice variation across #Europe ➡️ More #evidence needed 🔗 buff.ly/4gDMGMD #geriatrics #gerisky #medsky
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Redirecting
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The BMJ @bmj.com · 01/12/2024
Guideline directed medical therapy for heart failure for older people with frailty may do more harm than good, say Henry Woodford and colleagues www.bmj.com/content/387/...
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Trisha Elliott @trishaelliott.bsky.social · 06/12/2024
Much common sense in this feature in last week’s @bmj.com on older adults with atrial fibrillation (AF). It’s four pages long, but the punchline is that you need to look at the patient as well as the ECG and work out WITH THEM what the goals and priorities are. #MedSky www.bmj.com/content/386/...
Cartoon where ECG squiggles rise off page and become an older woman. Flowchart for management of AF depending on fitness or frailty. WHAT YOU NEED TO KNOW
• Atrial fibrillation predominantly affects older adults. Given the heterogeneous nature of ageing, disease focused randomised controlled trials and guidelines may not be applicable across the broad spectrum of this population
• To inform decision making, clinicians should assess an individual's level of function and frailty, and discuss their treatment goals, using evidence based shared decision making tools where available and appropriate
• Evidence needs strengthening to inform individualised care for the growing population of older adults with atrial fibrillation
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Lucy Pollock @lucypgeridoc.bsky.social · 27/11/2024
No idea why it’s coming up with a title Atrial Fibrillation ! It’s about Heart Failure in people w frailty and I hope you will like it ! What do you think?
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Simon Mooijaart @drsimonpm.bsky.social · 04/12/2024
What is #ageing? Even the field’s researchers can’t agree. 😂 "People joke in the field that there are more theories than people" News article in #Nature: 🔗 buff.ly/3D9MqpV #geriatrics
nature.com
What is ageing? Even the field’s researchers can’t agree
Survey of scientists who study ageing finds no consensus on the fundamentals.
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Simon Mooijaart @drsimonpm.bsky.social · 04/12/2024
Disagreement on foundational principles of biological #aging This survey published in #PNASNexus reveals that aging researcher experts disagree on: 1️⃣ definition of aging? 2️⃣ when does it start? 3️⃣ is it a disease? #ageing #geriatrics #gerisky 🔗 buff.ly/4eZ6Hfd
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Holly Paris @bloody--holly.bsky.social · 01/12/2024
#ChooseGeriatrics Profile: David Oliver @mancunianmedic.bsky.social gives 10 reasons 1. It requires excellent all round general medical skills meaning you have to be a confident generalist. @CMO_England Chris Whitty strongly agrees #ChooseGeriatricsforGeneralists @gerisoc.bsky.social 👉🏻Repost
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Simon Mooijaart @drsimonpm.bsky.social · 01/12/2024
Impressive progress and endless opportunties of #AI and #GenAI like #ChatGPT in Healthcare. Also in #geriatrics, I think. ❓ but how do we ensure safety? ‼️ Timely and important issue and viewpoint!
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Simon Mooijaart @drsimonpm.bsky.social · 01/12/2024
😱 Unbelievable! It has only been 2 (!) years since #ChatGPT is around. 💬 Already so impactful and yet so much more to come in the near future. A revolution! Euronews: buff.ly/4gehaV0
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Trisha Elliott @trishaelliott.bsky.social · 28/11/2024
Many teams are using the excellent “Clinical Frailty Scale” developed by the wonderful @krockdoc.bsky.social. (Often referred to as “the one with the pictures”!) BUT it needs to be used properly, so I was pleased to see this infographic with some top tips on how to do that. #MedSky #GeriSky #EOLC
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Simon Mooijaart @drsimonpm.bsky.social · 30/11/2024
🥳 Huge congratulations to Estelle Tran Van Hoi ! 📔 Blood based #immune #biomarkers associated with clinical #frailty scale in older patients with #melanoma receiving checkpoint inhibitor #immunotherapy ❓association with outcomes? 🔗 buff.ly/414Xf6O #geriatrics #oncology
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Blood based immune biomarkers associated with clinical frailty scale in older patients with melanoma receiving checkpoint inhibitor immunotherapy - Immunity & Ageing
Introduction Immunotherapy with checkpoint inhibition (ICI) is increasingly prescribed to older patients with cancer. High age, especially in combination with frailty, has been associated to immune…
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Simon Mooijaart @drsimonpm.bsky.social · 30/11/2024
So true! So much work to be done still, requires specific knowledge and skills. #geriatrics #ehealth
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Simon Mooijaart @drsimonpm.bsky.social · 29/11/2024
💉 Leqembi (#lecanemab) approved by EMA for European market for APOE carriers with early #Alzheimers #dementia 🧠 ❓should we routinely determine APOE status now ❓ is anybody doing that already? #geriatrics #neurology search.app/NFHufSyavLFR...
search.app
Leqembi recommended for treatment of early Alzheimer’s disease | European Medicines Agency (EMA)
Re-examination concludes that benefits outweigh risks in a restricted patient population
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