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Dexmedetomidine can also be used for procedural sedation such as during colonoscopy. [18] It can be used as an adjunct with other sedatives like benzodiazepines, opioids, and propofol to enhance sedation and help maintain hemodynamic stability by decreasing the requirement of other sedatives. [19] [20] Dexmedetomidine is also used for ...
This level, called moderate sedation/analgesia or conscious sedation, causes a drug induced depression of consciousness during which the patient responds purposefully to verbal commands, either alone or accompanied with light physical stimulation. Breathing tubes are not required for this type of anesthesia. This is twilight anesthesia. [2]
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]
To induce general anesthesia, propofol is the drug used almost exclusively, having largely replaced sodium thiopental. [13]It is often administered as part of an anesthesia maintenance technique called total intravenous anesthesia, using either manually programmed infusion pumps or computer-controlled infusion pumps in a process called target controlled infusion (TCI).
Amnesia is desirable during surgery, so general anaesthesia procedures are designed to induce it for the duration of the operation. Sedatives such as benzodiazepines, which are commonly used for anxiety disorders, can reduce the encoding of new memories, particularly in high doses (for example, prior to surgery in order for a person not to recall the surgery). [2]
These techniques facilitate the use of propofol, etomidate, ketamine, and other intravenous anesthetic agents. During or after TIVA, patients may be subjected to an elevated risk of anesthesia awareness, hyperalgesia and neurotoxicity. [2] Considering these risks, special consideration is given to obese, elderly and pediatric patients ...
These include allergic reactions, over-sedation, respiratory depression, and hemodynamic effects. These typically depend on the sedative agent used. Some agents are more likely to cause complications than others, but all sedative agents can cause complications if not used properly. Titration is a common technique used to reduce these complications.
When signs of tolerance to midazolam occur during intensive care unit sedation the addition of an opioid or propofol is recommended. Withdrawal symptoms can include irritability , abnormal reflexes , tremors , clonus , hypertonicity , delirium and seizures , nausea , vomiting , diarrhea , tachycardia , hypertension , and tachypnea .