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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.
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...
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: 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...
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...
Inhalational Anesthetics: Overview01:20

Inhalational Anesthetics: Overview

Inhalation anesthetics are drugs that induce general anesthesia upon inhalation. They work by increasing the sensitivity of GABAA receptors or inhibiting NMDA receptors, leading to a decrease in central nervous system activity. The depth of anesthesia can be rapidly adjusted by changing the concentration of the inhaled gas. Some common examples of inhalational anesthetics include volatile liquids like isoflurane, desflurane, sevoflurane and gases like xenon and nitrous oxide. Isoflurane, a...

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Related Experiment Videos

Is propofol a safe and effective sedative for relocating hip prostheses?

N Mathieu1, L Jones, A Harris

  • 1Emergency Department, Royal Devon & Exeter NHS Foundation Trust, Barrack Road, Exeter EX2 5DW, UK.

Emergency Medicine Journal : EMJ
|December 24, 2008
PubMed
Summary

Propofol is a safe and effective sedative for emergency hip prosthesis relocation, achieving a 96% success rate with uncommon, manageable adverse effects in this study.

Related Experiment Videos

Area of Science:

  • Emergency Medicine
  • Anesthesiology
  • Orthopedics

Background:

  • Hip prosthesis dislocation is a common orthopedic emergency.
  • Sedation is often required for hip prosthesis relocation.
  • Propofol offers potential sedative benefits in emergency settings.

Purpose of the Study:

  • To evaluate the safety and efficacy of propofol for hip prosthesis relocation in the emergency department.
  • To assess adverse events associated with propofol sedation during this procedure.

Main Methods:

  • Prospective observational study of 100 patients undergoing hip prosthesis relocation.
  • Propofol sedation administered after initial morphine and preoxygenation.
  • Data collection focused on procedural success and adverse outcomes.

Main Results:

  • Propofol successfully relocated hip prostheses in 96% (94/98) of patients.
  • Adverse events included transient oxygen desaturation (8%) and hypotension (4%).
  • Additional propofol doses were needed in 43% of patients for sedation or prolonged procedures.

Conclusions:

  • Propofol is a safe and effective sedative for emergency hip prosthesis relocation.
  • Adverse effects were infrequent and manageable.
  • Propofol represents a viable option for procedural sedation in this context.