Nicholas Chrimes
@chrimesy.com
Anaesthetist | Creator Vortex Approach | Co-founder Safe Airway Society | Director Universal Airway (PUMA) Guidelines | ANZCA/ASA/NZSA Airway SIG Executive Member
VortexApproach.org
UniversalAirway.org
SafeAirwaySociety.org
EZDrugID.org
VortexApproach.org
UniversalAirway.org
SafeAirwaySociety.org
EZDrugID.org
Pinned
Nicholas Chrimes
@chrimesy.com
· Jun 28
Universal HAVL: 100% grade 1 view & 1st pass success since 2020. 😘👌
Reposted by Nicholas Chrimes
Should we use fewer arterial catheters in critical care patients?
It may prevent harm from non-infective and infective complications, lower financial and environmental costs and reduce iatrogenic blood loss and blood transfusions in individual patients.
#AnSky #ICUSky
doi.org/10.1111/anae...
It may prevent harm from non-infective and infective complications, lower financial and environmental costs and reduce iatrogenic blood loss and blood transfusions in individual patients.
#AnSky #ICUSky
doi.org/10.1111/anae...
doi.org
January 7, 2026 at 3:01 PM
Should we use fewer arterial catheters in critical care patients?
It may prevent harm from non-infective and infective complications, lower financial and environmental costs and reduce iatrogenic blood loss and blood transfusions in individual patients.
#AnSky #ICUSky
doi.org/10.1111/anae...
It may prevent harm from non-infective and infective complications, lower financial and environmental costs and reduce iatrogenic blood loss and blood transfusions in individual patients.
#AnSky #ICUSky
doi.org/10.1111/anae...
Reposted by Nicholas Chrimes
Pity they massively overdosed the ketamine arm - significant percentage > 2mg/kg / no ceiling dose ("rule of 1 ampoule") / dose per total body weight / and who gives > 0.5 mg/kg to a "sick" patient - great trial / wrong pharmacology / wrong conclusion = drugs are equivalent at equipotent doses
December 10, 2025 at 8:15 PM
Pity they massively overdosed the ketamine arm - significant percentage > 2mg/kg / no ceiling dose ("rule of 1 ampoule") / dose per total body weight / and who gives > 0.5 mg/kg to a "sick" patient - great trial / wrong pharmacology / wrong conclusion = drugs are equivalent at equipotent doses
Reposted by Nicholas Chrimes
Hyperangulated videolaryngoscopy: stylet first until benefit of bougie is shown
"...the current challenge for the wider community of anaesthetists ... is not mastery of HAVL but access to devices, routine use, gaining familiarly and developing competence."
#AnSky
ttps://doi.org/10.1111/anae.70062
"...the current challenge for the wider community of anaesthetists ... is not mastery of HAVL but access to devices, routine use, gaining familiarly and developing competence."
#AnSky
ttps://doi.org/10.1111/anae.70062
November 10, 2025 at 12:16 PM
Hyperangulated videolaryngoscopy: stylet first until benefit of bougie is shown
"...the current challenge for the wider community of anaesthetists ... is not mastery of HAVL but access to devices, routine use, gaining familiarly and developing competence."
#AnSky
ttps://doi.org/10.1111/anae.70062
"...the current challenge for the wider community of anaesthetists ... is not mastery of HAVL but access to devices, routine use, gaining familiarly and developing competence."
#AnSky
ttps://doi.org/10.1111/anae.70062
Reposted by Nicholas Chrimes
Registrations are now open for the 1st stop on the Safe Airway Society's 2026 #AirwayWorkshopRoadshow: MELBOURNE!
½ Day workshop Sun 22nd March at Peter Mac
Stations:
Neck Rescue @ANZCA.bsky.social CICO ERM sign off available)
HAVL/VAFI
Trache/Lary Emergencies
Places will sell out fast.
½ Day workshop Sun 22nd March at Peter Mac
Stations:
Neck Rescue @ANZCA.bsky.social CICO ERM sign off available)
HAVL/VAFI
Trache/Lary Emergencies
Places will sell out fast.
January 6, 2026 at 7:18 AM
Registrations are now open for the 1st stop on the Safe Airway Society's 2026 #AirwayWorkshopRoadshow: MELBOURNE!
½ Day workshop Sun 22nd March at Peter Mac
Stations:
Neck Rescue @ANZCA.bsky.social CICO ERM sign off available)
HAVL/VAFI
Trache/Lary Emergencies
Places will sell out fast.
½ Day workshop Sun 22nd March at Peter Mac
Stations:
Neck Rescue @ANZCA.bsky.social CICO ERM sign off available)
HAVL/VAFI
Trache/Lary Emergencies
Places will sell out fast.
Reposted by Nicholas Chrimes
Incidence of peri-operative nerve injuries appears to be decreasing over time - a result of meticulous attention to pressure areas? Increasing use of ultrasound for nerve blocks? What do you think?
@dr-amit-pawa.bsky.social @jeffgadsden.bsky.social
@dr-amit-pawa.bsky.social @jeffgadsden.bsky.social
Incidence of peri-operative peripheral nerve injuries associated with general and regional anaesthesia: an observational study
#AnSky #RASky
doi.org/10.1111/anae...
#AnSky #RASky
doi.org/10.1111/anae...
December 2, 2025 at 2:32 AM
Incidence of peri-operative nerve injuries appears to be decreasing over time - a result of meticulous attention to pressure areas? Increasing use of ultrasound for nerve blocks? What do you think?
@dr-amit-pawa.bsky.social @jeffgadsden.bsky.social
@dr-amit-pawa.bsky.social @jeffgadsden.bsky.social
Reposted by Nicholas Chrimes
Save the dates for our 2026 #AirwayWorkshopRoadshow & annual meeting.
This year our annual meeting will be held back-to-back with the
@anzca.bsky.social @thenzsa.bsky.social @asa-australia.bsky.social Airway SIG meeting in Noosa Heads, QLD.
Registrations open Jan 2026
More details to follow.
This year our annual meeting will be held back-to-back with the
@anzca.bsky.social @thenzsa.bsky.social @asa-australia.bsky.social Airway SIG meeting in Noosa Heads, QLD.
Registrations open Jan 2026
More details to follow.
November 28, 2025 at 1:10 AM
Save the dates for our 2026 #AirwayWorkshopRoadshow & annual meeting.
This year our annual meeting will be held back-to-back with the
@anzca.bsky.social @thenzsa.bsky.social @asa-australia.bsky.social Airway SIG meeting in Noosa Heads, QLD.
Registrations open Jan 2026
More details to follow.
This year our annual meeting will be held back-to-back with the
@anzca.bsky.social @thenzsa.bsky.social @asa-australia.bsky.social Airway SIG meeting in Noosa Heads, QLD.
Registrations open Jan 2026
More details to follow.
Reposted by Nicholas Chrimes
Australasian Anaesthesia 2025 (also known as the Blue Book) has landed! You can read a digital version, or order a hard-copy version, here: bit.ly/49JzoxX
November 25, 2025 at 5:46 AM
Australasian Anaesthesia 2025 (also known as the Blue Book) has landed! You can read a digital version, or order a hard-copy version, here: bit.ly/49JzoxX
Reposted by Nicholas Chrimes
“For clinicians who have abandoned cricoid force… the qtn to be answered is why they employ any element of RSI at all. Rather than selectively abandoning cricoid force as a component, it should perhaps be the only component we retain”
From @chrimesy.com in @anaesjournal.bsky.social
From @chrimesy.com in @anaesjournal.bsky.social
Cricoid force: therapeutic, prophylactic or routine
Click on the article title to read more.
associationofanaesthetists-publications.onlinelibrary.wiley.com
November 24, 2025 at 6:39 PM
“For clinicians who have abandoned cricoid force… the qtn to be answered is why they employ any element of RSI at all. Rather than selectively abandoning cricoid force as a component, it should perhaps be the only component we retain”
From @chrimesy.com in @anaesjournal.bsky.social
From @chrimesy.com in @anaesjournal.bsky.social
Reposted by Nicholas Chrimes
"It is perverse that cricoid force has been abandoned selectively by many clinicians for not representing evidence-based practice when, compared with [other RSI elements], it is cost-free, better reasoned, has less potential for harm & more evidence of efficacy."
#AnSky
doi.org/10.1111/anae...
#AnSky
doi.org/10.1111/anae...
Cricoid force: therapeutic, prophylactic or routine
Click on the article title to read more.
doi.org
November 17, 2025 at 9:22 AM
"It is perverse that cricoid force has been abandoned selectively by many clinicians for not representing evidence-based practice when, compared with [other RSI elements], it is cost-free, better reasoned, has less potential for harm & more evidence of efficacy."
#AnSky
doi.org/10.1111/anae...
#AnSky
doi.org/10.1111/anae...
This one’s for @drmikeclifford.bsky.social
Cricoid pressure has been selectively vilified out of RSI in many settings, yet it has less risks, a better rationale & more evidence for efficacy than any other cited component of RSI
Why aren’t we doing it routinely for all adult tracheal intubations?
Cricoid pressure has been selectively vilified out of RSI in many settings, yet it has less risks, a better rationale & more evidence for efficacy than any other cited component of RSI
Why aren’t we doing it routinely for all adult tracheal intubations?
Cricoid force: therapeutic, prophylactic or routine
Click on the article title to read more.
associationofanaesthetists-publications.onlinelibrary.wiley.com
November 15, 2025 at 9:00 AM
This one’s for @drmikeclifford.bsky.social
Cricoid pressure has been selectively vilified out of RSI in many settings, yet it has less risks, a better rationale & more evidence for efficacy than any other cited component of RSI
Why aren’t we doing it routinely for all adult tracheal intubations?
Cricoid pressure has been selectively vilified out of RSI in many settings, yet it has less risks, a better rationale & more evidence for efficacy than any other cited component of RSI
Why aren’t we doing it routinely for all adult tracheal intubations?
Reposted by Nicholas Chrimes
Awful. I'm just going to leave this here: yes, bronchospasm can account for a flat capnograph, but no, you can't assume that's the reason and you must take the tube out or (if that's genuinely dangerous) exclude oesophageal intubation using a bronchoscope.
onlinelibrary.wiley.com/share/author...
onlinelibrary.wiley.com/share/author...
September 1, 2025 at 11:22 AM
Awful. I'm just going to leave this here: yes, bronchospasm can account for a flat capnograph, but no, you can't assume that's the reason and you must take the tube out or (if that's genuinely dangerous) exclude oesophageal intubation using a bronchoscope.
onlinelibrary.wiley.com/share/author...
onlinelibrary.wiley.com/share/author...
Reposted by Nicholas Chrimes
Safe Airway Society (a not-for-profit org. in Australia & New Zealand; aiming to optimize safe, effective patient care through a collaborative, multidisciplinary approach to airway management across different healthcare roles & settings) leaves X (3.699 followers)
Bluesky: @safeairwaysociety.org
Bluesky: @safeairwaysociety.org
August 25, 2025 at 11:53 AM
Safe Airway Society (a not-for-profit org. in Australia & New Zealand; aiming to optimize safe, effective patient care through a collaborative, multidisciplinary approach to airway management across different healthcare roles & settings) leaves X (3.699 followers)
Bluesky: @safeairwaysociety.org
Bluesky: @safeairwaysociety.org
International Consensus Guidelines for Preventing Unrecognised Oesophageal Intubation.
Free full text in @anaesjournal.bsky.social
Supported by @dasairway.bsky.social @safeairwaysociety.org @asahq.bsky.social @rcoanews.bsky.social & many more…
www.universalairway.org/puoi/support
Free full text in @anaesjournal.bsky.social
Supported by @dasairway.bsky.social @safeairwaysociety.org @asahq.bsky.social @rcoanews.bsky.social & many more…
www.universalairway.org/puoi/support
September 1, 2025 at 5:45 AM
International Consensus Guidelines for Preventing Unrecognised Oesophageal Intubation.
Free full text in @anaesjournal.bsky.social
Supported by @dasairway.bsky.social @safeairwaysociety.org @asahq.bsky.social @rcoanews.bsky.social & many more…
www.universalairway.org/puoi/support
Free full text in @anaesjournal.bsky.social
Supported by @dasairway.bsky.social @safeairwaysociety.org @asahq.bsky.social @rcoanews.bsky.social & many more…
www.universalairway.org/puoi/support
Yet another case of death from unrecognised oesophageal intubation. The circumstances of the case are tragically similar to previous cases: good clinicians succumbing to cognitive bias.
Please familiarise yourself with the guidelines to avoid falling into the same trap.
@anzca.bsky.social
Please familiarise yourself with the guidelines to avoid falling into the same trap.
@anzca.bsky.social
Woman dies after breathing tube mistakenly inserted into food pipe
The 73-year-old suffered an unsurvivable brain injury after the error went unnoticed for 17 minutes during surgery.
www.1news.co.nz
September 1, 2025 at 5:40 AM
Yet another case of death from unrecognised oesophageal intubation. The circumstances of the case are tragically similar to previous cases: good clinicians succumbing to cognitive bias.
Please familiarise yourself with the guidelines to avoid falling into the same trap.
@anzca.bsky.social
Please familiarise yourself with the guidelines to avoid falling into the same trap.
@anzca.bsky.social
Reposted by Nicholas Chrimes
The most important use of VL is engaging the team. They can see what is happening. Your assistant can see if their airway manoeuvres are helping or hindering. DL is a lonely game.
August 30, 2025 at 8:40 PM
The most important use of VL is engaging the team. They can see what is happening. Your assistant can see if their airway manoeuvres are helping or hindering. DL is a lonely game.
Reposted by Nicholas Chrimes
Absolutely massive crowd in Naarm/Melbourne today. From the river to the sea.
August 24, 2025 at 2:52 AM
Absolutely massive crowd in Naarm/Melbourne today. From the river to the sea.
Reposted by Nicholas Chrimes
He’s wanted to declare martial law from day one.
Bypass all checks and rule as a tyrant.
Many have speculated how he’d do it.
Now his gambit is clear.
DC was a test.
He’s using manufactured crime stats to send troops into blue states & cities.
This is not a drill.
Democracy is at defcon 1.
Bypass all checks and rule as a tyrant.
Many have speculated how he’d do it.
Now his gambit is clear.
DC was a test.
He’s using manufactured crime stats to send troops into blue states & cities.
This is not a drill.
Democracy is at defcon 1.
August 23, 2025 at 11:21 PM
He’s wanted to declare martial law from day one.
Bypass all checks and rule as a tyrant.
Many have speculated how he’d do it.
Now his gambit is clear.
DC was a test.
He’s using manufactured crime stats to send troops into blue states & cities.
This is not a drill.
Democracy is at defcon 1.
Bypass all checks and rule as a tyrant.
Many have speculated how he’d do it.
Now his gambit is clear.
DC was a test.
He’s using manufactured crime stats to send troops into blue states & cities.
This is not a drill.
Democracy is at defcon 1.
Reposted by Nicholas Chrimes
Oh..patients don’t complain when you don’t use LA they just accept it hurts!
What I get is “Oh ..is it done?” Or “Wow..that was ok after all”
Also they don’t move and , should you miss, they don’t get wound up if you have to redo!
What I get is “Oh ..is it done?” Or “Wow..that was ok after all”
Also they don’t move and , should you miss, they don’t get wound up if you have to redo!
August 21, 2025 at 11:03 AM
Oh..patients don’t complain when you don’t use LA they just accept it hurts!
What I get is “Oh ..is it done?” Or “Wow..that was ok after all”
Also they don’t move and , should you miss, they don’t get wound up if you have to redo!
What I get is “Oh ..is it done?” Or “Wow..that was ok after all”
Also they don’t move and , should you miss, they don’t get wound up if you have to redo!
Reposted by Nicholas Chrimes
This is the midweek #MedSkyDebate thanks to @pieterpeach.com
Do you use LA for your cannula insertions?
Do you use LA for your cannula insertions?
Hey @maffygirl.medsky.social, maybe a mid week topic for the future.
“Our patients deserve better: We should use local anaesthetic infiltration for all large gauge intravenous cannulations in elective surgery.”
Eg youtu.be/GXA7D7IOZOc?...
#Ansky
“Our patients deserve better: We should use local anaesthetic infiltration for all large gauge intravenous cannulations in elective surgery.”
Eg youtu.be/GXA7D7IOZOc?...
#Ansky
The Painless Peripheral IV Cannulation
YouTube video by Pieter Peach
youtu.be
August 20, 2025 at 3:39 AM
This is the midweek #MedSkyDebate thanks to @pieterpeach.com
Do you use LA for your cannula insertions?
Do you use LA for your cannula insertions?
Not doing the right thing bc it’s too hard is simply not caring enough.
If the argument for why something - literally anything - should not be done, is that it's complicated, and hard, and you don't understand, blah blah, but good on you for caring... that's literally never a good point. It's always a deflection and never engages. It's PR for inertia
August 18, 2025 at 1:17 AM
Not doing the right thing bc it’s too hard is simply not caring enough.
Reposted by Nicholas Chrimes
If the argument for why something - literally anything - should not be done, is that it's complicated, and hard, and you don't understand, blah blah, but good on you for caring... that's literally never a good point. It's always a deflection and never engages. It's PR for inertia
August 18, 2025 at 12:33 AM
If the argument for why something - literally anything - should not be done, is that it's complicated, and hard, and you don't understand, blah blah, but good on you for caring... that's literally never a good point. It's always a deflection and never engages. It's PR for inertia
While CL has its issues (mainly that no one remembers what the gradings mean) POGO is a completely useless classification system. It can only subclassify easy views (CL 1 -2a) but is unable to discriminate bw challenging views (CL 2b - 4 are all potentially POGO 0%).
Still using Cormack-Lehane grading for VL? Why?!
Out today a new @bjaeducation.bsky.social article by @naomi-gostelow.bsky.social Bhavesh Patel and me looking at grading systems for VL.
#AnSky #MedSky
kwnsfk27.r.eu-west-1.awstrack.me/L0/https:%2F...
Out today a new @bjaeducation.bsky.social article by @naomi-gostelow.bsky.social Bhavesh Patel and me looking at grading systems for VL.
#AnSky #MedSky
kwnsfk27.r.eu-west-1.awstrack.me/L0/https:%2F...
Grading systems for tracheal intubation using videolaryngoscopy
The first videolaryngoscopes were marketed in 2001. In the two decades since, the
number of models available, diversity in design and popularity have all significantly
increased.1 Designs can be class...
www.bjaed.org
August 17, 2025 at 2:20 PM
While CL has its issues (mainly that no one remembers what the gradings mean) POGO is a completely useless classification system. It can only subclassify easy views (CL 1 -2a) but is unable to discriminate bw challenging views (CL 2b - 4 are all potentially POGO 0%).
Reposted by Nicholas Chrimes
Apart from my very niche case HOW LOW WILL YOU GO, or let BP go before you intervene?
Thanks to @chrimesy.com for the topic.
Thanks to @chrimesy.com for the topic.
Let’s keep up the #MedSkyDebate pace!!
Weekend topic is from Nicholas Chrimes @chrimesy.com
“Permissive hypotension: how low will you go?”
My personal low was a 8 hour AVM resection in a 30 year old, at 50 systolic throughout the resection
Brilliant outcome, minimal deficit
Weekend topic is from Nicholas Chrimes @chrimesy.com
“Permissive hypotension: how low will you go?”
My personal low was a 8 hour AVM resection in a 30 year old, at 50 systolic throughout the resection
Brilliant outcome, minimal deficit
a man in front of a microphone with the words how low can you go
ALT: a man in front of a microphone with the words how low can you go
media.tenor.com
August 16, 2025 at 10:43 AM
Apart from my very niche case HOW LOW WILL YOU GO, or let BP go before you intervene?
Thanks to @chrimesy.com for the topic.
Thanks to @chrimesy.com for the topic.
Reposted by Nicholas Chrimes
Let’s keep up the #MedSkyDebate pace!!
Weekend topic is from Nicholas Chrimes @chrimesy.com
“Permissive hypotension: how low will you go?”
My personal low was a 8 hour AVM resection in a 30 year old, at 50 systolic throughout the resection
Brilliant outcome, minimal deficit
Weekend topic is from Nicholas Chrimes @chrimesy.com
“Permissive hypotension: how low will you go?”
My personal low was a 8 hour AVM resection in a 30 year old, at 50 systolic throughout the resection
Brilliant outcome, minimal deficit
a man in front of a microphone with the words how low can you go
ALT: a man in front of a microphone with the words how low can you go
media.tenor.com
August 15, 2025 at 10:19 PM
Let’s keep up the #MedSkyDebate pace!!
Weekend topic is from Nicholas Chrimes @chrimesy.com
“Permissive hypotension: how low will you go?”
My personal low was a 8 hour AVM resection in a 30 year old, at 50 systolic throughout the resection
Brilliant outcome, minimal deficit
Weekend topic is from Nicholas Chrimes @chrimesy.com
“Permissive hypotension: how low will you go?”
My personal low was a 8 hour AVM resection in a 30 year old, at 50 systolic throughout the resection
Brilliant outcome, minimal deficit
Reposted by Nicholas Chrimes
You got away with it. I don’t believe hypotension is permissible.
20% drop of patient’s norm is fine, beyond that bad.
“the purpose of anaesthesia is to keep everything as boring as possible”
“boring” = physiological
20% drop of patient’s norm is fine, beyond that bad.
“the purpose of anaesthesia is to keep everything as boring as possible”
“boring” = physiological
August 16, 2025 at 4:46 AM
You got away with it. I don’t believe hypotension is permissible.
20% drop of patient’s norm is fine, beyond that bad.
“the purpose of anaesthesia is to keep everything as boring as possible”
“boring” = physiological
20% drop of patient’s norm is fine, beyond that bad.
“the purpose of anaesthesia is to keep everything as boring as possible”
“boring” = physiological