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JMC
26.3K posts
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JMC
@narrowQRS
Physician, Educator, Researcher, Optimist, Musician, and Empath. MDS, chimera, allo BMT survivor. 💪 🇺🇲
Joined December 2011
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  • Pinned
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    JMC
    @narrowQRS
    Apr 10, 2025
    VT entrainment. Some of you want to learn it from the beginning. Some just want the punchline. Here's a direct link to the climax of the video, with examples of all the possible entrainment locations (isthmus, entrance, exit, bystander, outer loop, etc)
    20K
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    JMC
    @narrowQRS
    Mar 26, 2020
    Remember to synchronize the cardioversion shock please.
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    JMC
    @narrowQRS
    Feb 12, 2023
    Hey, it's my 4th *new* birthday. A.k.a. my bone-marrow-versary 💉🩸 Infinity ♾️ gratitude to my brother Jordan (BMT donor), to Dr. Porter, Dr. Loren, Heather, Jackie, and their entire BMT team, and to all my family & friends who got me through some tough times! 💪 #Remission
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    65K
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    JMC
    @narrowQRS
    Aug 29, 2020
    Today is the 2nd anniversary of my life-altering diagnosis. Wasn't sure I'd still be here by this point, and it's sobering to think back to that awful day. This message isn't for sympathy, but to send strength, power, & unity to all who have had their own Aug. 28. #CrushCancer 💪
  • user avatar
    JMC
    @narrowQRS
    Jan 26, 2020
    Replying to @notyouknowsimba
    Congrats brother! I feel you, and pray that this chapter is closed! 🙏
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    JMC
    @narrowQRS
    Feb 12, 2021
    Today is my new birthday. 2 years ago I received the ultimate gift from my youngest brother as part of my cancer treatment. Not everyone in need has a sibling who is a match. Please sign up for the bone marrow registry. Maybe you'll save a life! join.bethematch.org/s/landing?lang…
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    JMC
    @narrowQRS
    Jan 28, 2024
    Finally recording the narration for my SVT talk. So far, over 1h 30min, and not even halfway through.... This SVT diagnosis video is going to be EPIC!!!!
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    36K
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    JMC
    @narrowQRS
    Oct 23, 2021
    🚨🚨🚨 New Video Alert!!! How to interpret the QRS when reading EKGs. This video reviews physiology, anatomy, and explains why the QRS looks the way it does in a range of scenarios. Normal conduction, bundle branch blocks, WPW, PVCs, pacing, fusion & more!
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    JMC
    @narrowQRS
    Jan 3, 2023
    Not enough info yet, but it's a well-known phenomenon that a lethal arrhythmia can be induced in a totally normal heart with a blow to the chest. Name: commotio cordis Treatment: immediate CPR + defibrillation via AED (Nothing to do with vaccines, btw)
    en.wikipedia.org
    Commotio cordis - Wikipedia
    122K
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    JMC
    @narrowQRS
    Jul 11, 2020
    Replying to @Kissmyartt
    "I love ALL people." #BLM
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    JMC
    @narrowQRS
    Aug 29, 2024
    August 28 - life-changing day for me in 2018. Got blood drawn, scrubbed into a long case. WBC 0.9 Hgb 7.1 Plt 11 Myelodysplastic syndrome. Allo BMT 2019, still in remission👍 Infinite gratitude to my family, friends & co-workers & especially my docs (Dr. Loren and Dr. Porter)❤️
    23K
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    JMC
    @narrowQRS
    Jul 17, 2023
    Epicardial temporary wires after cardiac surgery. So much potential, not enough education about them. I plan to create a lecture/video about them. Should I call it "Surgical Epi Wires: The Good, The Bad, and The Ugly" ?? 😂
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    43K
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    JMC
    @narrowQRS
    Feb 1, 2024
    🚨🚨🚨 New Video Alert !!! Diagnosis of SVT in the EP Lab is now published! I'm eager to hear early feedback, in case I got anything wrong and need to edit/republish. Let me know what you think!! (video is still "processing", sorry if there's a delay)
    57K
  • user avatar
    JMC
    @narrowQRS
    Jan 13, 2019
    Replying to @Ed_Gerst @jskoruth and 5 others
    Ok, it was time for a #NapkinDrawing ! "Pattern breaks" in V1-V2-V3 are due to PVC/VT wavefront traveling directly toward or directly away from lead V2 which sits over anterior septal base. Vectors for V1,V3 are off axis and thus have smaller vectors toward/away from them.
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