Yuki Kotani, MD
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yukikotani.bsky.social
Yuki Kotani, MD
@yukikotani.bsky.social
Deputy Director of the Department of Intensive Care Medicine, Kameda Medical Center, Japan.
🩺 Clinical implications:
1️⃣ Routine switch from propofol-based sedation is not supported
2️⃣ In patients requiring deep sedation, Dex/Clon may be suboptimal due to agitation
3️⃣ Monitor for bradycardia when using Dex or Clon

📄 Full article:
jamanetwork.com/journals/jam...
Dexmedetomidine- or Clonidine-Based Sedation vs Propofol in Critically Ill Patients
This randomized clinical trial compares the effects of dexmedetomidine- or clonidine-based sedation vs propofol-based sedation (usual care) on the duration of mechanical ventilation in critically ill ...
jamanetwork.com
May 20, 2025 at 1:49 AM
💡 Interpretation:
Dex and Clon were expected to facilitate extubation due to lighter sedation

However, in ~25–30% of cases, deep sedation was unavoidable

High propofol co-use diluted between-group differences

No reduction in delirium with dex, contrary to prior hopes
May 20, 2025 at 1:49 AM
⚠️ Safety concerns:
Bradycardia (HR < 50): Increased with both Dex and Clon
Agitation (RASS +3–4): Also increased in both groups
Delirium (via CAM-ICU): No difference
May 20, 2025 at 1:49 AM
💉 Real-world sedation use:
Target RASS: –2 to +1
20–30% required deep sedation per clinician judgment
Even in Dex/Clon groups, propofol was used during ~75–77% of sedation days

🎯 Primary outcome: No difference in time to extubation success across groups
May 20, 2025 at 1:49 AM
🏥 Overview:
41 ICUs, 1,404 patients

🧩 PICO (3-arm):
P: Adults expected to require ≥48h of MV
I: Sedation primarily with ① dexmedetomidine or ② clonidine
C: Sedation primarily with propofol
O: Time from randomization to 48h of sustained spontaneous breathing (i.e., extubation success)
May 20, 2025 at 1:49 AM
So, true.
February 13, 2025 at 9:51 AM