Related Experiment Video
Updated: Dec 16, 2025
A Structured Approach to Extubation in Mechanically Ventilated Rats
Published on: July 18, 2025
Dexmedetomidine for Facilitating Mechanical Ventilation Extubation in Difficult-to-Wean ICU Patients: Systematic
Mitchell S Buckley1, Pamela L Smithburger2, Adrian Wong3
1Department of Pharmacy, 22386Banner-University Medical Center Phoenix, Phoenix, AZ, USA.
Background:
Agitation and delirium are common in mechanically ventilated adult intensive care unit (ICU) patients and may contribute to delayed extubation times. Difficult-to-wean ICU patients have been associated with an increased risk of longer ICU length of stays and mortality. The purpose of this systematic review and meta-analysis is to evaluate the evidence of dexmedetomidine facilitating successful mechanical ventilation extubation in difficult-to-wean ICU patients and clinical outcomes.
Methods:
A literature search was conducted using MEDLINE, EMBASE, PsycINFO, Cumulative Index to Nursing and Allied Health Literature, Global Health, Cochrane Central Register of Controlled Trials, Clinical Trial Registries, and the Health Technology Assessment Database from inception to December 5, 2019. Randomized controlled trials evaluating dexmedetomidine with the intended purpose to facilitate mechanical ventilation liberation in adult ICU patients (≥18 years) experiencing extubation failure were included. The primary outcome of time to extubation was evaluated using the weighted mean difference (WMD), with a random effects model. Secondary analyses included hospital and ICU length of stay, in-hospital mortality, hypotension, and bradycardia.
Results:
A total of 6 trials (n = 306 patients) were included. Dexmedetomidine significantly reduced the time to extubation (WMD: -11.61 hours, 95% CI: -16.5 to -6.7, P = .005) and ICU length of stay (WMD: -3.04 days; 95% CI: -4.66 to -1.43). Hypotension risk was increased with dexmedetomidine (risk ratio [RR]: 1.62, 95% CI: 1.05-2.51), but there was no difference in bradycardia risk (RR: 3.98, 95% CI: 0.70-22.78). No differences were observed in mortality rates (RR: 1.30, 95% CI: 0.45-3.75) or hospital length of stay (WMD: -2.67 days; 95% CI: -7.73 to 2.39).
Conclusions:
Dexmedetomidine was associated with a significant reduction in the time to extubation and shorter ICU stay in difficult-to-wean ICU patients. Although hypotension risk was increased with dexmedetomidine, no differences in other clinical outcomes were observed.
Related Concept Videos
01:24Endotracheal Tube Extubation
Procedure
Extubation removes the endotracheal tube (ETT) from the patient on mechanical ventilation. It requires a well-coordinated, multidisciplinary approach involving physicians, nurses, respiratory therapists, and other healthcare professionals....
01:21Tracheostomy Decannulation
Description of the Procedure
Decannulation refers to the permanent removal of the tracheostomy tube, signaling the resolution of the condition that initially necessitated the tracheostomy. The process requires a well-coordinated interplay between...
01:29Mechanical Ventilation I: Indication and Settings
01:31Skeletal Muscle Relaxants: Therapeutic Uses
01:23Mechanical Ventilation III: Noninvasive Ventilation
Noninvasive Positive-Pressure Ventilation...
01:17Endotracheal Intubation II: Nursing Management
1. Nursing Care of Patients Before Intubation
Before the endotracheal intubation procedure, nurses play an essential role in ensuring the process goes smoothly. The nurses must be familiar with intubation...