Dr. Christopher Kellner · NYC Neurosurgeon

My talented and courageous patient, Clemency, tells her story in "My Brain: After the Rupture", and it's playing in Manhattan this Tuesday, April 28th at 8:30pm. Get tickets here 👇reelabilities.org/newyork/films/…

Thrilled to publish this study in ⁦@TheAJNR⁩ Liquid embolic penetration in #MMA embo matters! Check out our angiographic grading system for predicting chronic #SDH resolution “SLEEK” ⁦@chriskellnerMD⁩ @AmolMehtaMD @MajidiShahram @JMoccoMD pubmed.ncbi.nlm.nih.gov/41654327/

@MS_SouthNassau recently launched its interventional stroke program. The cerebrovascular team is proud to launch this center, which we built in collaboration with the Mount Sinai South Nassau team. Shoutout to Danny Hom, Jonathan Sisti, and Travis Caton

Throwback to my very first day at @MountSinaiNeuro 10 years ago. I can't imagine working in a better environment to practice medicine. Happy #DoctorsDay to all the doctors out there, and to my colleagues.

Most patients never see what happens when hospitals and insurers negotiate. But those decisions shape access, continuity, and cost. Dr. Alan Adler explains how it works in this episode of #TheVitals. youtu.be/ktFbLK_O5Xk @MountSinaiNeuro @MountSinaiNYC @BrainyLeslie

Spent the day at the @MountSinaiNYC Brain Fair connecting with the community and talking all things brain health. Seeing kids light up learning about how we treat brain disease - that's why this work matters. #brainawareness #brainawarenessweek

.@route92med has today announced the first enrolment in SUMMIT RISE—a 500-patient, real-world, post-clearance study evaluating the performance of the company’s portfolio of #neurovascular interventional solutions @SunilAShethMD @rwregen @chriskellnerMD neuronewsinternational.com/route-92-begin…

Great catching up with friends and colleagues last month at the Miami Cerebrovascular Conference. Excellent dinner with the crew at Casa Neos with Bobby Stark, @DrMichaelLevitt, Jared Knopman, and others. Always nice to share practice building and life advice with colleagues.

Great few days at the Jackson Hole Winter Meeting / Hopkins Winter Symposium last week! 🎿 Amazing skiing, exceptional talks by many luminaries in the field, and got to spend time with the family. Always valuable time connecting with colleagues across #neurosurgery. @_AdnanSiddiqui @ahuguena

This is who ChatGPT thinks I am? 👀

Say hi to Emily Nitzberg, PA-C! 👋 She plays a vital role in patient care: educating, supporting, and connecting with patients every day. Innovative, communicative, and a proud Swiftie! Show her some love with a ❤️

This past weekend, we hosted the MINUTE Trial training course at @MountSinaiNYC / @MountSinaiNeuro. Surgeons traveled from around the country to spend the day reviewing the surgical technique and trial workflow, with hands-on discussion around what it looks like to participate as a site. As a member of the Surgical Leadership Committee, it’s been meaningful to help support thoughtful training and collaboration as this trial moves forward. @penumbrainc @Stryker_NV @JMoccoMD @NIH

What a fantastic day teaching neurosurgeons from across the country how to perform endoscopic intracerebral hemorrhage evacuation alongside @chriskellnermd. The MINUTE trial is poised to transform how we approach treatment for patients with deep brain bleeds.

At the 2025 HoneyBash Gala, guests bore witness to a powerful and deeply moving dialogue between Dr. Christopher Kellner, a neurosurgeon at Mount Sinai, and his patient, Julie Brothers, a woman whose life was forever changed by a single moment and the care that followed. Dr. Kellner is known not only for his technical excellence, but for his unwavering commitment to treating every patient as a person first. Julie is one of many whose life he has helped save, but hearing their story together, side by side, transforms statistics into something far more meaningful, hope. Click the link in our bio to watch the full conversation. thebeefoundation.org/a-conversation… @chriskellnerMD @MountSinaiNeuro

.@chriskellnerMD, Director of the Cerebrovascular Center & #ICH program at @MountSinaiNeuro, is performing an extracranial-intracranial (EC-IC) bypass, helping to restore circulation & reduce the risk of #stroke. @SinaiBrain #neurosurgery @cvsection

Ft in @neurology_live, @ChrisKellnerMD, Director of @MountSinaiCVC, discusses @FDA approval of n-butyl cyanoacrylate for MMA embolization in #cSDH, a minimally invasive option. He is a PI of the MEMBRANE trial, which provided key supporting evidence. ➡️bit.ly/3MTgFXa

Today, @JNJMedTech announced that the @US_FDA has approved an expanded indication for its Trufill n‑BCA liquid embolic system covering MMA embolisation as a surgical adjunct in the treatment of symptomatic subacute and chronic SDH @chriskellnerMD @JNJNews neuronewsinternational.com/jj-medtech-rec…

Had a great time in Orlando for #SVIN25 last month. I spoke on a Spotlight Session titled Brain Computer Interface, sharing my experience as one of the PIs on the Precision Neuroscience #BCI #stroke recovery trial. More details on the trial in @Forbes 🔗 tinyurl.com/3f7axhd5 @svinsociety @MountSinaiNeuro

On 12/2, JOIN US for an extraordinary event. "My Brain: After the Rupture" follows the remarkable recovery of @clemencybh who suffered a catastrophic brain hemorrhage & was saved by @chriskellnerMD & the #Cerebrovascular team at Mount Sinai West. RSVP 👉 forms.office.com/pages/response…

@stephanamayer Biopsy is also helpful if surgery is already being performed for ICH evacuation.

Useful. MRIs are not necessary in every stroke patient. But one exception is diagnosing CAA in patients with lobar #ICH