EMCrit FOAM Feed

EMCrit FOAM Feed

By Scott D. Weingart, MD FCCMScienceMedicineHealth & Fitness
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EMCrit FOAM Feed episodes

  • Resuscitation Program and FEMinEM discussion on Women as Conference Speakers and Unconscious Bias
    If you are interested in the ART Program, please go to the program page
    Advanced Resuscitation Training (ART) Program

    FEMinEM Discussion
    So we have our RESUSCITATE NYC conference coming up soon. On the day we listed the program, we got this tweet from @First_do_noharm



    Well, needless to say, I was a bit upset by the tone of this tweet--but the issues raised were incredibly important. Hence, instead of touching off a tweet-war, I instead reached out to the FEMinEM folks to see if they would host a discussion. Dara Kass (@darakass) and Jenny Beck-Esmay (@jbeckesmay) were kind enough to set up a google hangout to discuss the issues. Simon Carley (@EMManchester) has been doing research on this topic and was kind enough to join us as well.



    I thoroughly enjoyed the conversation and felt it was balanced and hopefully raises some things to think about. Especially in the setting of this kind of ridiculous sexist trolling:

    thanks to S. Carley for Sending this Example
    Update
    Ashley Liebig wrote with this message:
    What are you waiting for?

    In 7th grade, I was at a school dance. Everyone was dressed in their best; boys and girls stood, clustered together, on opposite sides of a vacant dance floor.

    I loved to dance, and at the age of 12, this wasted opportunity was a tragedy. “Why isn't anyone dancing?”

    “None of the boys have asked us.”

    I recall this conversation like it was yesterday. I remember the look on my friend’s face as the words came out of her mouth. Even as a young girl, she nearly choked on them as she realized what she was saying. Almost as quickly as they passed her lips, she grabbed my hand, and marched across the gymnasium floor to the boys and commanded, “Let’s go! We are dancing!”

    I couldn’t help but recall this story as I listened to the #feminEM forum addressing the need for more female conference speakers.

    From this, and the conversations I have had in person and viewed in the Twittersphere, it seems that women are waiting for an invitation to be heard. Women: smart, powerful, articulate professionals are WAITING for someone to invite them to the stage and then become frustrated when no one does! Wouldn’t that energy be better spent in active pursuit of that opportunity?

    Public speaking can be terrifying and becoming a great public speaker doesn’t just happen organically. It takes work, a massive amounts of time and practice. Ask women like Natalie May, Liz Crowe and Victoria Brazil. All brilliant speakers, whose craft has been honed over countless hours of commitment to the design and choreography of great lectures. This is not said to deter anyone, but rather to provide an appreciation of the effort involved. Submitting ideas, preparing for and giving lectures is a job in and of itself. Great speakers don’t just appear, they build a name for themselves, they work “the circuit”. They give lectures on a small scale, at grand rounds, and at regional conferences until they establish a reputation that propels them to the national level.

    With this in mind, have you submitted proposals to speak? Granted not all conferences call for speakers, but most do.
    3 min
  • Response to a Letter to the Editor on DSI Study


    Recently, a letter to the editor was published in the Annals of Emergency Medicine. We were asked to respond in print, which we did. However, due to space limitations and the limitations of the Letter to the Editor System, we did not feel that the response was complete. Here is the complete response:

    These opinions are those of the lead author and have been corroborated by the other authors of our DSI paper.

    Written Response
    More Information
    A comprehensive collection of Delayed Sequence Intubation information can be found at this page

    21 min
  • Podcast 163 – MotR – The Post-Resuscitation

    What to do in the Post-Resuscitation
    Inspired by my friend Mike Mallin, today I discuss the post-resuscitation. This squarely fits into the Mind of the Resuscitationist (MotR) series.
    Parasympathetic Backlash
    Follows the adrenaline dump. You are basically performing at a much lower level than normal.
    The moment of greatest vulnerability is the instant immediately after victory.
    ~ Napoleon Bonaparte
    We briefly touched on this concept in the On Combat bookclub.
    ...It doesn’t take a rocket scientist to guess that a soldier must pay a heavy physiological price for an enervating process this intense. The price that the body pays is an equally powerful backlash when the neglected demands of the parasympathetic system become ascendant. This parasympathetic backlash occurs as soon as the danger and the excitement are over, and it takes the form of an incredibly powerful weariness and sleepiness on the part of the soldier.
    ~ Grossman, On Combat
    What to Do?

    * Scene Check/360 degree sweep/Stabilization steps
    * Eat
    * Drink
    * Change Clothes
    * Nap?

    Debrief

    * Organized Debrief
    * Need your input here
    * Guilt Release

    Process and Avoid Post-Traumatic Negatives
    Go on the Couch
    Cliff Reid's Couch
    Visualization
    Use the highest fidelity simulator, your brain, to replay, re-act, and improve
    Meditation
    Will discuss on an upcoming podcast
    Gaming Processing and Recreation


    Play Tetris or Mindcraft

    [cite source='doi']10.1371/journal.pone.0004153[/cite], [cite source='doi']10.1177/0956797615583071[/cite]

    Jane McGonigal's Ted Talk & her interview on Tim Ferriss' podcast. Read her book: SuperBetter.
    What if you actually screwed up?
    Jason Brooks-Come Help me...
    Post-Traumatic Growth
    Resilience may lead people to go down the path of Post Traumatic Growth rather than PTSD

     

     
    24 min
  • Podcast 162 – Assessing Fluid Responsiveness


    In Podcast 64, Paul Marik and I discussed the concept of Fluid Responsiveness, and then we had the amazing Jean-Francois Lanctot discussing his four-part assessment with ultrasound to determine fluid use in sepsis. After that talk, I definitely felt I needed to discuss some of these issues further. If you have not listened to those two podcasts, it may be beneficial to go back before listening to this one.

    and what has come to me is that perhaps we have been conflating two concepts:

    *
    Can the RV take it?

    *
    Can the LV use it?


    Perhaps the problem we have been having is that we are trying to blend these two questions into 1. Let's use that as our path to discuss this morass of volume-responsiveness
    Fluid Challenge or PLR with CO measurements
    Stress the System with PLR or Fluid Challenge
    Passive Leg Raise

    Worth mentioning, though it should be obvious, PLR demonstrates how ridiculous the practice of Trendelenberg Position for resuscitation
    Fluid Challenge
    500 ml crystalloid or colloid
    10-Second Mini-Fluid Challenge
    50 ml bolus over 10 seconds through a central line (Critical Care 2014;18:R108) change in VTI measured immediately afterwards
    Then Measure the Response
    Can Changes in MAP Predict Fluid Responsiveness?
    [cite source='pubmed']22278593[/cite], [cite]20111858[/cite], [cite]22464162[/cite]

    Most recent analysis states changes in MAP don't predict CI increase from fluid load in septic shock (Intensive Care Med (2012) 38:422–428)

    The Cardiac Output Monitors
    Marik's Comprehensive Review Article

    and my buddy Seth Manoach wrote a nice review as well [cite source='pubmed']22537573[/cite]


    NICOM - Bioreactance

    * Marik studied 34 patients in the ICU with PLR, NICOM, SVV, and Carotid Flow (The use of NICOM (Bioreactance) and Carotid Doppler to determine volume responsiveness and blood flow redistribution following passive leg raising in hemodynamically unstable patients (Chest 2012 Marik et al.)
    * Big validation study showed good accuracy (Intensive Care Med (2007) 33:1191–1194)
    * There were a couple of small studies indicating inaccuracy, but when I looked into these--the authors may have had some conflicts

    USCOM - Aorta Ultrasound

    * Anaesthesia. 2012 Nov;67(11):1266-71.

    PiCCO

    * PCA + thermodilution

    Pulse Contour Analysis Alone

    * Bunch of studies keep going back and forth in the lit. I'm not sure if these track changes in afterload. They don't accurately track pressors/inopressors (Anesth Analg. 2011 Oct;113(4):751-7.)

    ETCO2

    * A PLR-induced increase in EtCO2 >5 % predicted a fluid induced increase in CI >15 % with sensitivity of 71 % (95 % confidence interval: 48–89 %) and specificity of 100 (82–100) %. (Intensive Care Med (2013) 39:93–100)
    * Passive leg raise to etco2 (CCM 2014;42:1585)

    Carotid and Brachial Artery Analyses
    Search for the evidence on pubmed, it is emerging now
    LVOT velocity time integral (VTI)

    * Accurate in the hands of experts--kind of annoying to obtain

    27 min
  • Podcast 161 – The New Fluid Assessment in Sepsis with Jean-Francois Lanctot


    Jean-Francois Lanctot along with his partner in crime, Maxime Valois, has markedly advanced the field of resuscitative ultrasound. The two of the them also created Echo-Guided Life Support (EGLS) and the Shock Echo app.

    Today, Jean-Francois and I discuss the current state of fluid assessment and treatment.
    TLDR Take-Home Points

    * Rule out obstruction to Venous Return (Can the Right Ventricle Take Volume Loading)
    * Look for Left Ventricular Failure (Can the Left Ventricle Take Volume Loading)
    * Correct Vascular Tone
    * Only then, Decide if the Patient may be Fluid Responsive


    Marik and Bellomo on the Fluid Management of Severe Sepsis
    from Br J Anaesth
    See this amazing fluid physiology lecture from the Ultrasound Podcast Site
    An Integrated Approach to Ultrasound-Guided Fluid Management

     
    26 min
  • Podcast 160 – Sepsis smaccDOWN

    At smaccChicago, I had the honor to host an incredible panel of Sepsis Experts. I think most everyone who heard it was left with more questions than answers. I have already posted a preemptive response to the panel here:

    EMCrit Podcast Episode 154
    In a few days, I will post a wee with some additional thoughts. I want to hear what you think--post your comments below.
    The Blurb from the SMACC Folks
    An all-star panel discuss the burning issues in sepsis right now. Hosted by Chris Nickson and I, the conversation on the controversial aspects of sepsis was lubricated with on-stage alcohol (my idea!)
    Mervyn Singer (research guru, sepsis expert and self-proclaimed Sex-God) and Paul Marik (iconoclast and dogma-basher) reveal just how hard it is to describe what sepsis is. Flavia Machado (intensivist and researcher) brings common sense and the perspective from South America, representing middle-income countries. Kath Maitland (author of FEAST, African-based paediatrician and clinical trialist) talks about sepsis management issues in Africa, where sepsis strikes its biggest global impact. Heavyweight researcher and clinician John Myburgh, argues that the word “sepsis” should be removed from our language and turns the paradigm on its head, arguing for a more pragmatic approach to sepsis management. Simon Finfer (crit care clinician, clinical trialist, voice of reason) describes the history, the good, the bad and the ugly about the Surviving Sepsis Guidelines, and some of the controversy surrounding them.
    There’s a fascinating, very high level discussion on antibiotics which is not as clear cut as you might imagine. You couldn’t discuss fluids without talking about fluids and this panel features several world experts on this topic. Kath Maitland’s insights from FEAST, combined with the opinions of the rest of the panel will hopefully leave you an informed agnostic.
     
    We’d highly recommend watching this discussion with your colleagues at work and use it to spark more discussion on this incredibly important topic that still kills so many of our patients.
     
    Additional Resources

    Mortality after Fluid Bolus in Children with Shock Due to Sepsis or Severe Infection: A Systematic Review and Meta-Analysis
    Exploring mechanisms of excess mortality with early fluid resuscitation: insights from the FEAST trial
    John Myburgh on Fluids
    Surviving Sepsis Guidelines
    Simon Finfer on Sepsis in 2014
    NEJM article on Sepsis by Angus et al

    Now On to the Vodcast...
    1 hr 19 min
  • Huge Announcement for EMCrit.org


    I am a podcaster. I like audio! But I also love reading well-crafted, incisive blog posts. One of my favorite blogs has been PulmCrit.org by Josh Farkas.

    Well now, PulmCrit and EMCrit are merging. This will be a boon for the audiences of both products. You'll be hearing more in the coming weeks.
    What do you think?
    3 min
  • Podcast 158 – The FELLOW Trial on Apneic Oxygenation in ICU Patients


    Matt Semler, MD and colleagues performed an RCT on Apneic Oxygenation in Medical ICU patients. I got a chance to sit down and interview him on the trial.
    The Trial
    The Fellow Trial (Published ahead of Print)
    Bottom Line Review
    Trial Summary
    Additional Written Comments from Matt Semler
    as provided by Matt Anderson (@ccinquisivist)
    From: Anderson, Matthew J

    Dr Semler
    I'm a CCM fellow at the University of Wisconsin, interested in airway mgmt in the ICU.

    Just saw your article published in ATS. I had a question about the airway mgmt protocol (or if there was one?). Did the airway team leader/intubator maintain a patent airway (ie were they instructed to do this just prior to the intubation attempt when getting sedation/analgesia and/or NMB)? I am unable to find/get to the supplement which this information may be listed but I didn't see any mention in the main manuscript, which I think is a extremely important discussion point. Previous, studies in the OR w/ or w/o maintenance of airway patency resulted in 'no difference in the non-airway patency (ie jaw thrust/head tilt chin lift) group vs 'stat significant difference in the airway patency group' during apneic oxygenation. If airway patency was maintained in your study this would be one of the first 'negative' results I have seen with apneic oxygenation. If airway patency was not required, this may explain the 'no difference' that was found in your study, which in my opinion, makes the use of apOX still an important part of endotracheal intubation. Until a randomized control trial to evaluate apOx with airway patency versus no apOx with airway patency confirms that previous. Further trials may need 30 degree ramp/optimal positioning, as well?

    Thanks for taking the time to answer my questions and publish/perform important ICU airway research.

    Matt Anderson
    Critical Care Medicine Fellow, PGY5
    ________________________________________

    From: Semler, Matthew

    Matt,

    Thanks for your interest in the trial.  You ask two really important questions -- actually two of the same points Rich Levitan emphasized when he visited during the conduct of the trial.

    (1) When discussing the effect of airway patency on outcomes of apneic oxygenation, the time-period in question is between administration of RSI medications (with anything prior to induction technically a part of pre-oxygenation) and the onset of laryngoscopy (when patency of the airway is directly established by the laryngoscope better by external maneuvers).  Objectively assessing whether the airway is patent during this period is challenging.  For the 30% or so in the trial who were on BIPAP between induction and laryngoscopy, the airway was known to be patent through monitoring of the returned tidal volumes.  In cases where NIV was not present, the operator was charged with maintaining patency of the airway between induction and laryngoscopy.  In 60% of cases this required an oral airway and a head-tilt-chin-lift maneuver.  In around 40 patients, the operator felt the airway was patent without such a maneuver.  Whether these maneuvers were effective in maintaining patency or whether patency was truly present in those patients who were not felt to require a maneuver is difficult to know.  We did analyze the subgroup of those who were on BIPAP and we were certain the airway was patent and there was not a significant effect of apneic oxygenation on lowest oxygen saturation in this group -- though obviously this is a not a large population.
    An important thing to consider when thinking about the period between induction and laryngoscopy is that high flows of oxygen...
    25 min
  • Podcast 157 – Central Lines II – Placement Tips

    Listen to Part I - Avoiding Complications

    * Confirmation of Proper Placement

    Micro-Skills and Deliberate Practice
    Image from S. Rezaie

    * You definitely need to watch the central line micro-skills video

    Steps Of Central Line Insertion

    * Go to the Central Line Page

    Subclavian Insertion

    * Go to the Central Line Page

    Dilation

    * The wire CAN'T BE ALLOWED TO ADVANCE
    * I need to record dilator use as a microskill
    * Move wire in out sequentially during dilation (racking the wire)

    Internal Jugular

    * Keep head in neutral not rotated for IJ (Journal of Emergency Medicine Volume 31, Issue 3 , October 2006, Pages 283-286)

    Subclavian

    * Subclavian is safe in mech vent pts (Anesthesiology:2009 – Volume 111 – Issue 2 – pp 334-339)
    * Use lower shoulder position puncture site just lateral to mid-clavicular line [cite source='pubmed']15564937[/cite]
    * Shoulder retraction (padding behind the back) was not helpful (Br. J. Anaesth. (2013) 111 (2): 191-196.)
    * If you miss twice, consider abandoning the site (3 on a match)

    Ambesh Maneuvers

    * Finger in fossa technique to prevent guidewire malposition in subclavians (Ambesh SP, Anesthesiology.  2002; 97(2): 528-529.)

    Checking Subclavian Placement after Catheter is In

    * After subclav line placement, if you push on IJ and CVP increases 3-5 mmHg then the lumen is in the IJ instead of the SVC (Anesthesiology 2002;97(2):528), IJ occlusion test (Anesthesiology 2001;95(6):1377) and (Anesthesiology 2006;105(5):1062-1063)

    Can We Place Central Lines in Anti-Coagulated Patients?

    * Central line insertion while anti-coagulated seems safe and complications probably correlate with skill of physician (emerg med j 2011;28(6):536)
    * Micropuncture Sets seem to be a very clever way to go

    Guidewire Exchange
    Guidewire exchange seems safe [cite source='pubmed']24004883[/cite] GWX-CVC’s and NI-CVC’s had similar rates of tip colonization at removal, CA-BSI and mortality. If the CVC removed by GWX is colonized, a new CVC must then be inserted at another site. In selected ICU patients at higher central vein puncture risk, guide-wire exchange may be an acceptable initial approach to line insertion.
    Tips for Flushes
    Drop a sterile 50 ml bag on to field; slash that bad boy with a scalpel. (Thanks Haney)
    Update:
    Chris Bond does an interview on hand motion analysis as a means of demonstrating expertise on the procedure

    31 min

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