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Related Concept Videos

Parenteral Anesthetics: Overview01:24

Parenteral Anesthetics: Overview

Intravenous anesthetics are drugs administered parenterally to induce anesthesia or sedation. Propofol is a widely used agent formulated as a 1% emulsion in soybean oil, glycerol, and egg phosphatide. It induces rapid anesthesia primarily due to its rapid distribution from the bloodstream to target tissues and is metabolized in the liver. However, it can cause significant pain on injection and hypertriglyceridemia. Fospropofol, a water-based prodrug of propofol, lacks these adverse effects.
Stages of General Anesthesia01:22

Stages of General Anesthesia

Various sedation levels offer significant advantages in facilitating procedural interventions for patients undergoing medical or invasive surgical procedures. These levels span from anxiolysis to general anesthesia, providing a spectrum of sedative effects to cater to specific patient needs. Anxiolysis reduces anxiety and is achieved through minimal sedation, enabling patients to remain awake and responsive while feeling more at ease during the procedure. This level can benefit minor...
Sedatives and Hypnotics Drugs: Barbiturates01:20

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...
Sedatives and Hypnotics: Overview01:23

Sedatives and Hypnotics: Overview

Sedatives are drugs that alleviate anxiety, while hypnotics induce sleep. Both classes of medication suppress neuronal activity, leading to a calming effect for sedatives and facilitating sleep for hypnotics.
Sedative-hypnotics are categorized into barbiturates, benzodiazepines (BZDs), and non-benzodiazepines or Z-drugs. These drugs work by suppressing central nervous system activity, and this suppression is dose-dependent. Older sedative medications, like barbiturates, follow a linear curve in...
CNS Depressants: Barbiturates and Benzodiazepines01:14

CNS Depressants: Barbiturates and Benzodiazepines

CNS depressants include drugs from the category of barbiturates and benzodiazepines. They are valuable medications for managing anxiety disorders and insomnia. Barbiturates, once used to induce and maintain sleep, have been replaced mainly by benzodiazepines due to barbiturate's toxicity, tolerance, and overdose risks. They interact with GABAA receptors, leading to sedation at low doses and potentially coma and death at higher doses. Phenobarbital, a long-acting barbiturate, possesses...
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.
Melatonin congeners like ramelteon (Rozerem) and tasimelteon (Hetlioz) selectively bind to melatonin receptors (MT1 and MT2) and thus mimic the actions of melatonin, a hormone that regulates sleep-wake cycles. Tasimelteon is primarily used for non-24-hour sleep-wake disorder, common in blind patients. They are also used to treat conditions like insomnia...

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Updated: Jul 6, 2026

Halogenated Agent Delivery in Porcine Model of Acute Respiratory Distress Syndrome via an Intensive Care Unit Type Device
09:36

Halogenated Agent Delivery in Porcine Model of Acute Respiratory Distress Syndrome via an Intensive Care Unit Type Device

Published on: September 24, 2020

[Prolonged sedation in Intensive Care Units].

M B Estébanez-Montiel1, M A Alonso-Fernández, A Sandiumenge

  • 1Hospital Universitario 12 de Octubre, Madrid, España. belenestebanez@yahoo.es

Medicina Intensiva
|June 24, 2008
PubMed
Summary

Effective sedation and analgesia are crucial for critically ill patients. Protocols and monitoring help prevent complications from prolonged use, improving patient outcomes.

Related Experiment Videos

Last Updated: Jul 6, 2026

Halogenated Agent Delivery in Porcine Model of Acute Respiratory Distress Syndrome via an Intensive Care Unit Type Device
09:36

Halogenated Agent Delivery in Porcine Model of Acute Respiratory Distress Syndrome via an Intensive Care Unit Type Device

Published on: September 24, 2020

Area of Science:

  • Critical Care Medicine
  • Pharmacology

Context:

  • Critically ill patients in Intensive Care Units (ICUs) often require prolonged sedation and analgesia.
  • Inadequate or excessive use of sedatives and analgesics can lead to significant complications and impact patient outcomes.

Purpose:

  • To review concepts of prolonged sedation (over 72 hours) in critical care.
  • To evaluate available sedative and analgesic agents.
  • To describe strategies for ensuring quality application of sedation and analgesia.

Summary:

  • Sedation and analgesia are fundamental in managing critically ill patients, aiming to reduce stress and improve outcomes.
  • Continuous intravenous infusions of sedatives and analgesics carry risks of under- or over-utilization.
  • Protocols, monitoring, and strategies like daily sedation interruption are essential for safe and effective management, preventing tolerance and dependency.

Impact:

  • Optimizing sedation and analgesia management can mitigate complications associated with prolonged use.
  • Implementing evidence-based strategies improves patient care and clinical outcomes in the ICU.
  • A structured approach to sedation and analgesia is vital for reducing adverse events and enhancing recovery.