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When used for IV sedation, a single dose of propofol typically wears off within minutes. Onset is rapid, in as little as 15–30 seconds. [5] Propofol is versatile; the drug can be given for short or prolonged sedation, as well as for general anesthesia. Its use is not associated with nausea as is often seen with opioid medications.
Propofol [6] is a non-barbiturate derivative that is thought to act by stimulating inhibitory GABA receptors and blocking excitatory NMDA receptors. It takes 40 seconds for the effects of propofol to kick in, and effects last six minutes. [3] Propofol has both sedative and amnestic effects, but provides no analgesia.
Most propofol is conjugated in the liver with pharmacologically inactive metabolites. [33] Although it has a long terminal elimination half-life of 4 to 30 hours, plasma concentrations remain low after the typical induction dose. [33]
Twilight anesthesia is an anesthetic technique where a mild dose of sedation is applied to induce anxiolysis (anxiety relief), hypnosis, and anterograde amnesia (inability to form new memories). The patient is not unconscious, but sedated.
Propofol for sedation for intubation; Switching from oxygen to a mixture of oxygen and inhalational anesthetic once intubation is complete; Laryngoscopy and intubation are both very stimulating. The process of induction blunts the response to these maneuvers while simultaneously inducing a near-coma state to prevent awareness.
Sedation is the reduction of irritability or agitation by administration of sedative drugs, generally to facilitate a medical procedure or diagnostic procedure. Examples of drugs which can be used for sedation include isoflurane, diethyl ether, propofol, etomidate, ketamine, pentobarbital, lorazepam and midazolam. [1]
Etomidate [3] (USAN, INN, BAN; marketed as Amidate) is a short-acting intravenous anaesthetic agent used for the induction of general anaesthesia and sedation [4] for short procedures such as reduction of dislocated joints, tracheal intubation, cardioversion and electroconvulsive therapy.
In medicine, specifically in end-of-life care, palliative sedation (also known as terminal sedation, continuous deep sedation, or sedation for intractable distress of a dying patient) is the palliative practice of relieving distress in a terminally ill person in the last hours or days of a dying person's life, usually by means of a continuous intravenous or subcutaneous infusion of a sedative ...