Sedation, or Conscious Sedation," twilight anesthesia allows patients to be sedated without completely losing consciousness. Patients under Conscious Sedation are carefully maintained in a state of drowsy relaxation during their surgical procedure. It is common for patients to fall into a light sleep during this type of anesthesia. The medication for sedation is delivered intravenously, while the surgeon or anesthesiologist injects the area to be operated on with a local anesthetic ie.
It is completely normal for people to remember being in the operating room while under Conscious Sedation, or to remember people talking to them while the procedure is occurring. It is also possible to have vivid dreams, and to recall them after the procedure. These are all normal with Conscious Sedation, yet many people remember nothing at all.
You should not feel pain, however, during this anesthetic, because the area to be operated on will always be numbed by the surgeon. These numbing medications last anywhere from hours. An analgesic is a medication used to achieve analgesia, or pain relief, and is often combined with sedation. Sedation and analgesics are usually provided through an IV placed in a vein. Moderate or deep sedation may slow your breathing, and in some cases, you may be given oxygen. Analgesia may also contribute to drowsiness.
Most patients wake up quickly once the procedure is over and the medications are stopped. Sometimes IV sedation and analgesics will be combined with other types of pain control — such as local anesthesia, which involves one or more injections to numb a small area of the body, or regional anesthesia, which numbs a larger part of the body, such as from the waist down.
Specific drugs commonly used include: fentanyl, valium, ketamine, midazolam, or nitrous oxide laughing gas. These drugs can be reversed quickly, so the patient can be woken up in a matter of minutes. Twilight anesthesia is typically administered through an IV, however oral delivery is also possible.
In most cases either the physician themselves or a dedicated anesthesiologists will administer and monitor twilight anesthesia during the procedure. Patients can breathe on their own while under twilight anesthesia so use of a ventilator is not required. Additionally, since the drugs used for twilight are administered in lower doses there is a decreased risk of any unwanted side effects.
Lastly, the twilight method is lower in cost compared to general anesthesia. Twilight anesthesia can be used for procedures such as blepharolplasty and some facelift surgeries. Learn more about twilight anesthesia with this blog post. General anesthesia uses specific drugs to make the patient completely unconscious and unresponsive an induced coma , making the patient unable to feel pain or remember their procedure. The coma is so deep that the patient loses control of their reflexes and autonomic nervous system.
Patients will require the help of breathing tubes and a ventilator to breathe while under general anesthesia. This type of anesthesia is administered through an IV and is typically used for high invasive procedures such as abdominoplasty tummy tuck , breast augmentation, and rhinoplasty procedures. General anesthesia should be administered and monitored by an experienced anesthesiologist or CRNA.
Of all anesthetic types, general anesthesia is the most powerful, yet costly. Patients who undergo general anesthesia are also more likely to experience adverse effects like nausea and vomiting compared to twilight or local anesthesia.
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