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Stephen Pettit

@drstephenpettit.bsky.social
384 followers 164 following 33 posts

heart failure cardiologist. climber. cyclist. chilli grower. simpsons fan. data lover. R stats nerd. actually just all-round nerd.

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Stephen Pettit @drstephenpettit.bsky.social · 10h
Bureaucracy Amitripyline Guarantee #words_i_cannot_spell
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Richard McElreath 🐈‍⬛ @rmcelreath.bsky.social · 25/09/2026
Thoughts and prayers for research data managers everywhere. You are not alone. We will get through this together techcommunity.microsoft.com/blog/excelbl...
techcommunity.microsoft.com
Excel now supports multiple values in a single cell | Microsoft Community Hub
Lists, arrays in cells, and nested arrays introduce new ways to store and organize related information, helping you keep data together without sacrificing...
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Journal of Cardiac Failure @jcardfail.bsky.social · 15/09/2026
🌍How do countries decide who gets a donor heart first? This research article analyzes heart allocation policies globally. Across 29 countries, 93% of allocation systems use urgency tiers. But how urgency, MCS priority, & exceptions are defined varies widely. 🔗 bit.ly/4xN1bXq
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Stephen Pettit @drstephenpettit.bsky.social · 10/09/2026
A good heart is hard to find. So how do different countries decide how to allocate each donor heart. The answer is surprisingly complex and raises questions about what we’re trying to achieve with #hearttransplantation www.sciencedirect.com/science/arti...
sciencedirect.com
An International Comparative Analysis of Adult Donor Heart Allocation
Donor heart−allocation policies aim to prioritize patients with the greatest clinical need while ensuring equitable distribution of scarce donor organ…
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JACC Journals @jaccjournals.bsky.social · 31/08/2026
In #heartfailure patients with #LBBB, CSP-CRT was noninferior to BiV-CRT in reducing LVESV and both treatment modalities provided similar and excellent improvements in #LVEF, QRS duration, heart failure symptoms, and functional capacity. bit.ly/4cLejUg #ESCCongress #JACCCEP #CardioSky
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Segun Olusanya (He/Him) @drfreeze.bsky.social · 28/08/2026
New heart failure guidelines just dropped #esccongress
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Darren Dahly @statsepi.bsky.social · 06/08/2026
Enjoyed this (on the "RCT debate") methodologymatters.substack.com/p/rcts-cruci...
methodologymatters.substack.com
RCTs: Crucial Yet Crucially Limited
RCTs do NOT estimate average effects; they also rarely EXPLAIN that which they have demonstrated.
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Nature @nature.com · 25/07/2026
The heart has a mysterious and complex nervous system of its own. Scientists are starting to reveal its secrets go.nature.com/4yEFk5e
go.nature.com
The heart has a ‘little brain’ — and it protects against stress
Nature - A subset of cardiac neurons keep the heart from malfunctioning in stressed mice.
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Darren Dahly @statsepi.bsky.social · 13/11/2025
Nice one, from @drg.bsky.social and @jamesheathers.bsky.social link.springer.com/article/10.1...
link.springer.com
“Cake causes herpes?” - promiscuous dichotomisation induces false positives - BMC Medical Research Methodology
Background Continuous biomedical data is often dichotomized into two or more groups for analysis, despite long-standing warnings from statisticians that this constitutes bad practice. This dichotomisa...
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JAMA @jama.com · 01/11/2025
The Sequential Organ Failure Assessment (SOFA) score is the most widely used tool for evaluating organ dysfunction. This week, JAMA published the SOFA-2 score, an update that incorporates current organ support therapies and introduces new scoring thresholds. ja.ma/49vYNe5
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Posit @posit.co · 30/09/2025
The new ggplot2 4.0.0 is here! 🎉 This major update includes a foundational rewrite of S7 and user benefits such as smarter labeling and a revamped theming system. Check the details: www.tidyverse.org/blog/2025/09... BONUS: Join the release party on Oct 3, 3pm ET. bit.ly/join-gg-extenders #RStats
ggplot2 hex with tada emoji. Text: Join the v4.0.0 release party with Teun van den Brand and the ggplot2 extenders, Oct 3 at 3pm Et, bit.ly/join-gg-extenders
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Ed Hawkins @edhawkins.org · 26/03/2025
Five years ago today, most historical UK monthly rainfall observations were not available to scientists. But the 66,000 pieces of paper containing the data had been scanned. With covid lockdown approaching we saw an opportunity to transcribe the data. #RainfallRescue began... 🧵
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Stephen Pettit @drstephenpettit.bsky.social · 28/04/2025
Incredibly powerful campaign to encourage organ donation in Brazil #ISHLT2025 youtu.be/E99ijQScSB8
youtu.be
Flock Associates - Recife Sport club: Immortal Fans. Integrated Campaign by Ogilvy Brazil
YouTube video by FlockAssociatesLtd
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Stephen Pettit @drstephenpettit.bsky.social · 27/04/2025
Ten year outcomes after DCD heart transplantation at Royal Papworth Hospital presented by Hassiba Smail #ISHLT2025
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Meg Fraser, DNP, ANP-C, FHFSA @megfrasernp.bsky.social · 27/04/2025
great kickoff to #ishlt2025 Dr. Rebecca Cogswell presenting important updates to 🫀🫁 registry
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International Society for Heart and Lung Transplantation (ISHLT) @ishlt.bsky.social · 26/04/2025
It's #ISHLT2025 Pre-Conference day! More than 490 medical professionals have come together to dive deeper into #CardiogenicShock, #LungTransplantation, #LungFailure, #CTEPH, and #HealthEquity topics with experts from around the world. 💡🌏
Speakers at the head table and podium of a convention center meeting room. ISHLT2025 branding is on the podium and behind the stage, and the screen reads "Cardiogenic Shock"
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Stephen Pettit @drstephenpettit.bsky.social · 09/02/2025
Agree. All the physiological variables that contribute to shock are continuous. Need to move beyond categorisation.
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Stephen Pettit @drstephenpettit.bsky.social · 23/12/2024
Very proud of my colleagues who pushed hard to get the UK’s first clinical programme of EVLP up and running. www.theguardian.com/society/2024...
theguardian.com
Machine to revive donor organs used in double-lung transplant in UK first
Exclusive: Daniel Evans-Smith tells of transformative effect of operation using technology that could cut waiting lists
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Paolo Crosetto @paolocrosetto.bsky.social · 20/12/2024
I was today years old when I found this gem of a web app to explore 2500+ color palettes for R: r-graph-gallery.com/color-palett...
r-graph-gallery.com
R Color Palette Finder
The ultimate tool for finding the perfect color palette for data visualization with R and paletteer. Explore over 2000 palettes, see them in action on various charts, simulate color blindness, and exp...
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Lars Mølgaard Saxhaug @load-dependent.eurosky.social · 20/12/2024
This was a fun study leveraging social media to demonstrate the high prevalence in Impella malrotation among cases shared on old Twitter. If it's malrotated, but it works well, without suction alarms or other problems, do you change it? #cccsky #cardiosky #emimcc www.pcronline.com/News/Whats-n...
pcronline.com
Impella percutaneous ventricular assist device malrotation in social media: a call to action
This study suggests that correct Impella orientation is often overlooked, and that Impella malrotation is a common issue in real-world clinical practice, potentially associated with relevant complicat...
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Stephen Pettit @drstephenpettit.bsky.social · 17/12/2024
Would you like to become an advanced heart failure cardiologist? Join our team in Cambridge! beta.jobs.nhs.uk/candidate/jo...
beta.jobs.nhs.uk
Job Advert
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JAMA @jama.com · 09/12/2024
Published in JAMA with #CCRdownunder: In critically ill adults with suspected sepsis, antibiotic regimens were safely reduced when guided by measurement of procalcitonin but not by C-reactive protein. @criticalcarereviews.com ja.ma/3BovM5v
Figure 3. Kaplan-Meier Curves for Probability of Antibiotic Duration and Mortality to 28 Days
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Stephen Pettit @drstephenpettit.bsky.social · 07/12/2024
Predicted heart mass is the optimal metric for donor-recipient size matching in heart transplantation. But the maths is tough at 3am. Download our simple Heart Transplant Sizing App for free from the Apple Store. apps.apple.com/gb/app/heart...
apps.apple.com
‎Heart Transplant Sizing App
‎Size matching is an important consideration in heart transplantation. It is important to avoid implanting an under-sized heart. Size matching has historically been performed using donor and recipient...
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Christian O’Donnell, M.D. @codonnell1130.bsky.social · 05/12/2024
Happy to share our work developing a method for matching heart transplant donors-to-recipients using echo-derived donor left ventricular mass (LVM) for size matching which improved outcomes (especially in obese patients). www.jacc.org/doi/10.1016/... #JACCHF #echofirst #Cardiosky #Echosky #Medsky
jacc.org
The Association of Echocardiographically Measured Donor Left Ventricular Mass and 1-Year Outcomes After Heart Transplantation:
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Stephen Pettit @drstephenpettit.bsky.social · 04/12/2024
hbiostat.org/rflow/ This is an exceptional resource and so useful for those (like me) making baby steps in #Rstats
hbiostat.org
R Workflow
R Workflow for Reproducible Data Analysis and Reporting
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Quarto @quarto.org · 25/11/2024
Quarto 1.6 is out! 🎉 Download it here: quarto.org/docs/download/ Quarto 1.6 supports unified branding across formats, updates to RevealJS, a new shortcode to reorder content, a landscape page block, and more. Blog post: quarto.org/docs/blog/po...
quarto.org
Quarto 1.6 – Quarto
Quarto 1.6 supports unified branding across formats, updates to RevealJS, a new shortcode to reorder content, a landscape page block, and more. There are also a couple of breaking changes that will af...
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