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Related Concept Videos

Sedatives and Hypnotics Drugs: Miscellaneous Agents01:17

Sedatives and Hypnotics Drugs: Miscellaneous Agents

Sedatives and hypnotics encompass a wide range of substances, each with its unique mechanism of action, uses, and potential adverse effects.
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Sedatives and Hypnotics Drugs: Barbiturates

Sedatives and hypnotics encompass a drug class that acts on the central nervous system (CNS) to alleviate anxiety, promote relaxation and induce sleep.These drugs function by amplifying the actions of the neurotransmitter γ-aminobutyric acid (GABA), resulting in reduced neuronal activity. Barbiturates, a subset of sedatives and hypnotics first synthesized in the late 1800s, are categorized into ultra-short, short, intermediate, and long-acting groups based on their duration of effect. A key...
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Sedatives and Hypnotics Drugs: Benzodiazepines

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Sedatives and Hypnotics: Overview01:23

Sedatives and Hypnotics: Overview

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Parenteral Anesthetics: Overview01:24

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Updated: May 9, 2026

Acquisition of Resting-State Functional Magnetic Resonance Imaging Data in the Rat
12:41

Acquisition of Resting-State Functional Magnetic Resonance Imaging Data in the Rat

Published on: August 28, 2021

[Dexmedetomidine].

G Gerresheim1, U Schwemmer

  • 1Klinik für Anästhesiologie und Intensivmedizin, Klinikum Neumarkt i.d. OPf., Nürnberger Str. 12, 92318, Neumarkt i.d. Opf, Deutschland. goetz.gerresheim@klinikum.neumarkt.de

Der Anaesthesist
|August 7, 2013
PubMed
Summary
This summary is machine-generated.

Dexmedetomidine offers sedation for ventilated patients, reducing delirium and enabling earlier extubation. While more expensive daily, its impact on intensive care unit (ICU) stay duration is not yet established.

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Area of Science:

  • Pharmacology
  • Intensive Care Medicine

Background:

  • Dexmedetomidine is a selective α2-receptor agonist with sedative, analgetic, and anxiolytic properties.
  • Authorized in Europe since 2011, it is chemically related to clonidine.

Purpose of the Study:

  • To evaluate dexmedetomidine's efficacy in achieving a specific sedation level (Richmond Agitation Sedation Scale 0-3) in mechanically ventilated patients.
  • To compare dexmedetomidine's effects on delirium, extubation time, and ICU stay duration against traditional sedatives like propofol and midazolam.

Main Methods:

  • Comparison of dexmedetomidine with benzodiazepines for sedation in intensive care.
  • Assessment of patient arousal via Richmond Agitation Sedation Scale (RASS).
  • Evaluation of delirium prevalence, duration, and severity.

Main Results:

  • Dexmedetomidine allows for sedation enabling verbal stimulation response (RASS 0-3).
  • Compared to benzodiazepines, dexmedetomidine significantly reduces delirium prevalence, duration, and severity.
  • Patients sedated with dexmedetomidine show statistically earlier extubation.

Conclusions:

  • Dexmedetomidine provides effective sedation for mechanically ventilated patients, with a notable benefit in reducing delirium.
  • While daily costs are higher than propofol, the overall clinical cost-efficiency requires further objective evaluation.
  • Earlier extubation is a statistically significant advantage, though impact on total ICU length of stay remains undetermined.