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Alex Warren

@alexwarrenicu

ICU doctor and researcher | physiology and data geek | NIHR PhD fellow looking at epidemiology and management of cardiogenic shock | all views my own.

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02.01.2025
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Latest posts by Alex Warren @alexwarrenicu

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Is atropine really required in addition to fentanyl & succinylcholine prior to intubation to prevent severe bradycardia in neonates?

We found yes...

Severe bradycardia during the whole procedure was signif > in placebo vs atropine group; RR 6.3(95% CI 1.2 - 34.1)

t.co/TKJovw24BQ

#NeoSky #PedSky

18.07.2025 13:47 πŸ‘ 9 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0
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Farewell, associates. Welcome back assistants On 20 November 2024, Wes Streeting, the UK’s Secretary of State for Health and Social Care, commissioned Gillian Leng to undertake an independent review of physician associates and anaesthesia associa...

β€œThe review… comments that without core knowledge of the pre-clinical subjects (such as pathology), it is not possible to apply mechanistic reasoning to complex health problems”

Agreed

Training to be a doctor is necessarily long because, simply put, medicine is complex

www.bmj.com/content/390/...

17.07.2025 04:52 πŸ‘ 22 πŸ” 7 πŸ’¬ 0 πŸ“Œ 1

Her biggest lesson for the critical care community?

β€œLook beyond the patient”

Think about their support networks, their environment…

The things that make their life worth living.

#soa25

01.07.2025 10:45 πŸ‘ 8 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0
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Intravenous Rehydration for Severe Acute Malnutrition with Gastroenteritis | NEJM International recommendations advise against the use of intravenous rehydration therapy in children with severe acute malnutrition because of the concern about fluid overload, but evidence to suppo...

Fantastic presentation of the #GASTROSAM trial at #CCR25 - IV rehydration strategies for children with severe acute malnutrition & gastroenteritis. Amazing commitment to generating evidence in the hardest of circumstances incl a coup and flooding. Bravo! www.nejm.org/doi/full/10....

13.06.2025 09:03 πŸ‘ 7 πŸ” 4 πŸ’¬ 1 πŸ“Œ 0
Figure 2. Oxygen Exposure and Arterial Oxygenation by Treatment Group in Patients With Enhanced Data Collection

Figure 2. Oxygen Exposure and Arterial Oxygenation by Treatment Group in Patients With Enhanced Data Collection

Conservative oxygen therapy with a target SpO2 of 90% did not reduce 90-day all-cause mortality compared to usual oxygen therapy in mechanically ventilated adult patients.

#CCR25 @criticalcarereviews.com

https://ja.ma/4kG5gWK

12.06.2025 08:15 πŸ‘ 16 πŸ” 16 πŸ’¬ 0 πŸ“Œ 0
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Conservative Oxygen Therapy With Mechanical Ventilation This randomized clinical trial assesses whether reducing supplemental oxygen to a peripheral oxygen saturation target of 90% would reduce mortality among critically ill adults receiving mechanical ven...

16,500 patients randomised to #UKROXTrial presented just now at #CCR25 and simultaneously published in @jama.com

No difference in 90d mortality between target SpO2 88-92 with reduced exposure to supplemental O2 vs usual care

jamanetwork.com/journals/jam...

12.06.2025 08:48 πŸ‘ 9 πŸ” 5 πŸ’¬ 1 πŸ“Œ 2
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#CCR25 … here we go! Three days of deep discussion of the top trials in critical care. If you are not in the room, do connect via livestream - see criticalcarereviews.com

11.06.2025 07:47 πŸ‘ 14 πŸ” 7 πŸ’¬ 1 πŸ“Œ 2
Figure 2. Total Protein and Calories

Figure 2. Total Protein and Calories

Augmenting enteral protein did not improve outcomes for critically ill patients compared with standard protein levels in the intensive care setting.

#CCR25 @criticalcarereviews.com

https://ja.ma/4kuYRxv

11.06.2025 08:15 πŸ‘ 11 πŸ” 5 πŸ’¬ 0 πŸ“Œ 1
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Early Intra-Aortic Balloon Support for Heart Failure-Related Cardiogenic Shock: A Randomized Clinical Trial

CCR Journal Watch - tracking the critical care literature daily
https://criticalcarereviews.com/latest-evidence/journal-watch

31.03.2025 09:15 πŸ‘ 3 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
Early Intra-Aortic Balloon Support for Heart Failure-Related Cardiogenic Shock: A Randomized Clinical Trial

In the Altshock-2 randomized trial, routine early #IABP plus standard care, compared with standard care, did not significantly improve survival or successful bridging to heart replacement therapies in patients with heart failure–cardiogenic shock www.jacc.org/doi/10.1016/...

31.03.2025 06:55 πŸ‘ 2 πŸ” 3 πŸ’¬ 1 πŸ“Œ 0

This is a fantastic paper from @intensiveperson.bsky.social and the team. Ten-year national study of risk factors and complications from arterial puncture/insertion of central lines.

Mandatory reading for anyone who inserts CVCs.

Really well done.

25.03.2025 09:47 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Right RCP Fellows! Voting for elections is now open. I am running for Clinical VP.

My election statement is here:
🧡

17.03.2025 11:28 πŸ‘ 4 πŸ” 3 πŸ’¬ 1 πŸ“Œ 2

I am running for Clinical VP of the RCP.

For those who don't know me, here is a potted bio.
🧡

17.03.2025 11:41 πŸ‘ 29 πŸ” 19 πŸ’¬ 1 πŸ“Œ 4

Profound septic shock is usually associated with mithocondrial dysfunction and relatively fixed low VO2 (one of the causes of hyperlactatemia, mithocondria aren’t using enough pyruvate even in presence of sufficient oxygen) while cardiogenic shock is usually a case of normal mithochondrial fnct.

16.03.2025 19:03 πŸ‘ 6 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0
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An infographic on Vaccine-preventable diseases. Might as well start familiarizing ourselves with these. Made me feel better to put this together

13.02.2025 18:57 πŸ‘ 50 πŸ” 13 πŸ’¬ 4 πŸ“Œ 7
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We can disagree and still love each other unless your disagreement is rooted in my oppression and denial of my humanity and right to exist.

β€” James Baldwin

13.03.2025 05:24 πŸ‘ 504 πŸ” 91 πŸ’¬ 4 πŸ“Œ 4
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Futile Treatments in Intensive Care Units The provision of treatments that are perceived to be futile is a major problem in the intensive care unit (ICU), leading to burdens for patients and families, as well as moral distress for caregivers....

Reread this banger today. How often does one see an invited commentary that cogently and respectfully destroys the entire conceptual paradigm of the article it's critiquing? jamanetwork.com/journals/jam...

07.03.2025 19:38 πŸ‘ 8 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

Mobilisation during ECLS - still controversial, depends on patient physiology - spectrum from contra-indicated to arguably essential for sustained recovery - key paper here.
#ECMO #MCS #ECLS

03.03.2025 18:08 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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🚩 Just out in @thelancet.bsky.social 🚩

African Critical Illness Outcome Study

➑️ Describing the burden of critical care in Africa
➑️ 1 in 8 inpatients are critically ill
➑️ ~70% cared for on general wards
➑️ ~50 don't receive basic critical care interventions

doi.org/10.1016/S014...

28.02.2025 09:22 πŸ‘ 6 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0

I had the pleasure of teaching lung #pocus at a β€œtrain the trainers” course, with the ever excellent @avkwong.bsky.social and Cian McDermott as faculty

Some reflections from the day:

(1/n)

27.02.2025 09:45 πŸ‘ 30 πŸ” 15 πŸ’¬ 1 πŸ“Œ 3

Very interesting piece. The data is eye-opening, even if it does reflect what’s noticeable day to day.

22.02.2025 07:43 πŸ‘ 8 πŸ” 5 πŸ’¬ 1 πŸ“Œ 0

It's a horrendous flu season. It's killing kids, it's killing adults. It's killing people who were perfectly healthy before and people who, like most Americans, have chronic illness. It costs NOTHING to keep existing resources available. Our government is spending money to make Americans sicker.

16.02.2025 18:32 πŸ‘ 324 πŸ” 143 πŸ’¬ 9 πŸ“Œ 6
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ICU Pulmonary Embolism Review:

Kudos to the authors for reviewing PE management strategies:

12.02.2025 23:48 πŸ‘ 27 πŸ” 7 πŸ’¬ 2 πŸ“Œ 0

Delighted to share the Barts echo team’s latest article

β€œExamining the Relationship Between Pulmonary Artery Acceleration Time and Pulmonary Artery Pressures in Patients with Ischemic Cardiogenic Shock”

Free to read for 50 days on the following link

www.sciencedirect.com/science/auth...

08.02.2025 14:16 πŸ‘ 11 πŸ” 6 πŸ’¬ 1 πŸ“Œ 0
How Complex Systems Fail

In light of the recent air crash in the US (and some somewhat startling proposed causes), it seems like time to roll out this classic from the late, great Dr. Richard Cook:

How Complex System Fail

how.complexsystems.fail

31.01.2025 02:13 πŸ‘ 8 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

Love me a spritzer. 0.1mg adrenaline (1mL of an ALS mini jet) diluted into a 20mL syringe. Works for big people as well as little ones…

30.01.2025 15:09 πŸ‘ 4 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Great group talk by one of UCL CHIMERA's PhD students this morning - she's using maths to model mucus layers in the lung to understand the impact of critical illness and mechanical ventilation on lung function.

Such an interesting project!
www.ucl.ac.uk/chimera

17.01.2025 12:09 πŸ‘ 49 πŸ” 7 πŸ’¬ 1 πŸ“Œ 0
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Diagnosis and management of immune checkpoint inhibitor (ICI)-induced myocarditis.

#AnSky #MedSky #OncSky

https://buff.ly/40ATqW9

17.01.2025 17:00 πŸ‘ 5 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0

95% of my confidence interval interpretations include the correct interpretation for confidence intervals

14.01.2025 18:12 πŸ‘ 24 πŸ” 4 πŸ’¬ 2 πŸ“Œ 0