Associate Professor, Neuroradiology and Neurology - Director, CU CSF Leak Program - University of Colorado Anschutz Medical Campus - Alumni: UCSF - #CSFLeak
Denver, Colorado
Joined January 2020
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Andrew L Callen MD retweeted
🏆 Congratulations to @Niklas_Luetzen and colleagues on winning the Dr. Linda Gray Discovery Award 🏆
This award recognizes the most impactful paper from 2025 in the field of #spinalCSFleak, as voted by members of @issclsociety.
Andrew L Callen MD retweeted
Check out this month’s #AJNR Fellows’ Journal Club choice: ‘’Sacral Dural Tears in Spontaneous Intracranial Hypotension: Imaging Phenotype and Treatment Outcomes in a Multicenter Cohort’’
Sacral dural tears are an often overlooked cause of spontaneous intracranial hypotension, with treatment outcomes primarily influenced by baseline imaging features and disease chronicity rather than procedural technique
In this retrospective multicenter cohort, unorganized extradural CSF collections predicted better clinical and imaging outcomes, while epidural patching achieved complete clinical improvement in 56% of patients. Dynamic CT myelography outperformed digital subtraction myelography in leak localization (75% vs 31%). These findings highlight the importance of morohology based diagnosis and sacral-directed imaging and treatment.
ajnr.org/content/47/10/2674
#neuroscience #radiology #radiologyresident #intracranialhypertension #sacralduraltears
Andrew L Callen MD retweeted
Matt spent years trying to manage pressure #headaches, continuous nasal congestion & crushing #fatigue.
He was eventually diagnosed with a CSF-venous fistula and was referred to Peter Lennarson, MD, for surgery @CUAnschutz #CSFLeak clinic --> tr.ee/4hJxoI
#Spine #SpineSurgery #Colorado
Andrew L Callen MD retweeted
This year's speakers include:
@WouterSchievink
@PeterGKranz
@NeuroradLal
@iantmark
@DrIanCarroll
@KathaDCwolf
@MarkMamloukMD
@traviscaton
@AjayMadhavanMD & more
We look forward to seeing you there!
After getting some great feedback from patients using Upright, I’ve just released an update with some improvements and new features:
• Appointment preparation: put your story into words, prioritize your questions, and bring a printable brief to your visit
• Upright/flat tracking: record total daily upright time
• Updated PDF reports: see symptom trends over time alongside treatments and position tracking
• Easier medication logging: reuse previous medications and enter doses from earlier dates
The appointment feature grew out of conversations in clinic. People often arrive with a lot they want to ask and understandable worry about whether they’ll be heard. My hope is that this helps you bring what matters most into the conversation.
Thank you to everyone who’s tried the app and shared feedback.
Download Upright for free on the App Store:
apps.apple.com/us/app/uprigh…
Andrew L Callen MD retweeted
For medical professionals and patients interested in spinal CSF Leak, @issclsociety encourages you to consider attending the Bridging the Gap conference Nov 14-15, 2026 put on by @spinalCSFleak and @AndrewCallenMD
More info here:
isscl.org/meetings
Several patients have asked whether this new “Neuro-EDS” paper explains their illness that I wanted to share my assessment.
I rarely write threads like this. But patients deserve to know what an explanation establishes before it shapes their care.
A spinal CSF leak perspective: 🧵
preprints.org/manuscript/202…
My work in spinal CSF leak makes me want this area to receive renewed attention and respect.
I worry that stigma makes patients harder to hear and clinicians less willing to engage. We need serious investigation and room for disagreement, with continued care for patients.