Next up for me: Changing Landscape of Prone Positioning with @sqsimp @GallodeMoraesMD @md_ritwick and Dr. Bosch.

Follow this thread 🧵 for pearls from this session.

#CHEST2021 #CHESTtrainees
Abbreviations:
PP = Prone Positioning
APP = Awake Prone Positioning
ARDS = You know it!
ARF = Acute Resp Failre

So then, let's learn!

#CHEST2021
Dr. Bosch:
What is APP? Proning patients who are not mechanically ventilated (MV)

He's presenting a case, let me ask you in the meanwhile; Do you perform Awake Proning?
Bosch: Can APP help in patients who are not intubated and hypoxemic?

Benefits: ↑ oxygenation, avoiding MV, ?↓ mortality
Harm: P-SILI, delayed intubation, dislodged catheters/drains, pt discomfort

But what's the data for AWAKE PP?
#CHEST2021
Elharrar (PMID: 32412581): Some respond in terms of oxygenation when awake prone, but question is does it affect patient outcomes.

PROSEVA did show in the past that improved oxygenation not related to mortality benefit, so equipoise remains.

#CHEST2021
Bosch discusses the recent trial: Ehrmann (PMID 34425070)

* S/F ratio moderate-severe ARDS
* 40% opts bese
* All pts on HFNC
* Median daily duration of awake proning: 5 hrs (1.6 - 8.6 hrs)

#CHEST2021
Ehrmann (PMID 34425070):

* Not diff in mortality but there was improvement in composite outcome
* Trend towards less treatment failure and intubations (pic 2)
* More benefit with longer period of APP (Pic 1)
* No increased AEs

#CHEST2021
Do you do APP for people who are on nasal cannula?: Answer unclear.

2 studies available (PMID 33356977), Bosch's group has a study about to be published.
* Pts were able to be proned < 12 hours, pts actually weren't able to prone for > 2 hours

#CHEST2021
Bosch:
So who should we awake prone?
* Early application probably better (some signals in studies,

Who is most likely to benefit?
* Lower P/F
* On HFNC vs. regular NC: More hypoxemia, likely more benefit

#CHEST2021
Current trends in awake proning?

Prior to #COVID19: 44% ICU directors ready
Post #COVID19: 86% ICU directors ready to do APP

Summary slide on guidelines discussed at #CHEST2021
.@md_ritwick is up next at #CHEST2021: Physiologic basis of prone positioning (PP)

Clinically: Improve oxygenation

Other mechanisms:
* ↓ ventral dorsal TPP difference
* ↓ lung compression by heart/diaphragm
* ↑ pulmonary perfusion

#CHEST2021
.@md_ritwick:

Mechanism 1: ↓ AP TPP gradient
* Pic 1 is demonstrative
* Pic 2: Schematic figure: ↓ TPP gradient in PP

Mech 2:
* ↓ lung collapse d/t heart/diaphragm --> ↓ shunt --> ↓ hypoxemia

#CHEST2021
Do Mech 1 & 2 actually work? Yes, PMID: 8780285: Obese pts --> PP ↑ PFTs

Mech 3:
* ARDS:↑ perfusion in affected areas
* PP: Perfusion uniform across lung --> ↓ V/Q mismatch See figure.

Best learning reference (It's a classic): bit.ly/3vuRihE

#CHEST2021
Next up is my friend, mentor, and twin, @GallodeMoraesMD aka THE PRONING QUEEN! Might be the only one who pushes for proning more than I do!!!!

She's going to talk about PP in ARDS: When, how, when, and when to stop!

#CHEST2021
.@GallodeMoraesMD:
Benefit in PROSEVA (PMID: 23688302) likely attribute to the long durations of proning! So that's important to keep in mind

Prone group: ↓ 28d and 90d mortality and ↑ successful extubation + vent free days

#CHEST2021
.@GallodeMoraesMD: HOW to prone:
* Don't need special beds, need a solid team
* "Burrito" the patient, bring pt towards the vent, members know which tube/line to keep track of, and then turn. It's a team dance!
* Pic 2: Use pillow w/ space to manage ETT

#CHEST2021
.@GallodeMoraesMD:
* We CAN prone without paralyzing BUT paralytics in hypoxemic failure can (Pic 2):
- ↑ ventilation in ARDS
- ↑ oxygenatn (don't need to use as drips as shown in ROSE): ? Mortality benefit
- ↑ V/Q match d/t ↓ work of breathing/TPP variations
#CHEST2021
.@GallodeMoraesMD: Having a protocolized approach is key. Intubated someone for ARDS? Start considering proning per that protocol. She shares the protocol they implemented at @MayoPCCM .

Their group has published this protocol, find it here bit.ly/3C1BjtZ

#CHEST2021
.@GallodeMoraesMD: How long should you prone?

* As long as it is helping!: As long as P/F is benefiting
* Mortality benefit with P/F cutoff of 150, but that's not hard and fast

#CHEST2021

Dr. Gallo is closing out with these take-home points, and *mic drop*, Queen out!
Here's a helpful infographic on proning from @accpchest ... There are a number of graphics that can be downloaded in high res at chestnet.org/topic-collecti…

#CHEST2021

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More from @virenkaul

20 Oct
Attending "Approach to Management of Pulmonary Infections in Immunocompromised Patients", LIVE right now on the #CHEST2021 platform, a thread🧵
. @kriscrothers: Diagnostic evaluation in patients with HIV include (pic 1)
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Know you infectious and non-infectious processes that can happen with decreasing CD4 counts (see pic 2)

#CHEST2021
.@kriscrothers: Compares bacterial pneumonia vs. PCP vs. TB
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Some punches are being thrown already ..

Somehow we brought up national chocolate cupcake day, whut? :-p

#CHEST2021
Topic: Role of Remdesivir for COVID-19:
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BD: Cost for quality low. Mortality benefit from best MA shows mortality benefit.
RG: No way, we don't do that up north! Maybe there is dec LOS, hell no on mortality.
#CHEST2021
What if pt already on Remdesivir prior to coming to ICU:
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#CHEST2021
Read 9 tweets
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Pic2: Positive correlation b/w ONSD and ICH volume #POCUS1st ImageImage
Silvestri & co:
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Scan the QR code for more details.

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Done with the talks for today at #CHEST2021 .. Now to the opening session. So nice to see leaders sharing gratitude and giving thanks. It’s the small things that matter! @CHESTPrez Image
.@CHESTPrez acknowledges massive amount of work performed diligently by the #COVID19 task force and the @accpchest staff who led this virtual pivot with aplomb.
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#CHEST2021
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#CHEST2021 Image
Read 6 tweets
17 Oct
Live at 1400 ET: chestmeeting2021.junolive.co/live/mainstage…

"Airway management in the era of severe pneumonia" with #CHESTairways experts from the Airway Domain Task Force.

Will live tweet this talk on this #CHEST2021 thread.

Speakers:
@Chaeface @KDoerschug @J_Mendelson_MD and yours truly! Image
Let's get started with WHY our session is important:
🔥 Appx. 10% emergent intubations may result in failed airway
🔥 It's not just anatomical challenges, but physiological ones that have to be considered, esp with severe pneumonia
🔥 Lessons from the pandemic

#CHEST2021
* Let's talk about the vicious cycle of injury that occurs in acute resp failure (pic 1)
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* Ideal timing related to worsening work of breathing (pic 3)

PMID: 32747391
PMID: 27626833

#CHEST2021 #CHESTairways ImageImageImage
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Here are direct quotes from those very people working >16 hours a day battling #COVID19

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Think about that
Let me share with you why
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Read 11 tweets

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