Anesthesia

Anesthesia is a state of controlled, temporary loss of sensation or awareness that is induced for medical or veterinary purposes. It may include some or all of analgesia, paralysis, amnesia, and unconsciousness. An individual under the effects of anesthetic drugs is referred to as being anesthetized. Anesthesia enables the painless performance of procedures that would otherwise cause severe or intolerable pain in a non-anesthetized individual, or would otherwise be technically unfeasible. Three broad categories of anesthesia exist: • General anesthesia suppresses central nervous system activity and results in unconsciousness and total lack of sensation, using either injected or inhaled drugs. • Sedation suppresses the central nervous system to a lesser degree, inhibiting both anxiety and creation of long-term memories without resulting in unconsciousness. • Regional and local anesthesia, which blocks transmission of nerve impulses from a specific part of the body.

Read more in the app

New Discovery Hints at What General Anesthesia Actually Does to The Brain

Men Succumb to Anesthesia More Easily than Women

Mayo Clinic Study Reveals Immune Cells’ Unexpected Role in Anesthesia Recovery

Uptick in behavioral disorders reported in children following prenatal exposure to anesthesia

'Father of Modern Gynecology' J. Marion Sims performed dangerous 'experiments' on enslaved Black women without the use of anesthesia

A brain-monitoring device may one day take the guesswork out of anesthesia

Anesthesia blocks sensation by cutting off communication within the cortex

Anesthesia technology precisely controls unconsciousness in animal tests

Anesthesia can cause disturbing sexual hallucinations, according to a review of studies and case reports, and can lead to lasting psychological trauma

Predisposition to accidental awareness under anesthesia identified by neuroscientists

Study: Cannabis Exposure Decreases Need for Blood Pressure Support During General Anesthesia

How Does Anesthesia Work?

Spinal Anesthesia Could Be Causing Increased Pain After Surgery

Staying 'Conscious' Under Anesthesia May Be Much More Common Than We Realized

Here's How The Human Brain Reboots Itself After The Deep Sleep of Anesthesia

How did doctors perform surgery before modern anesthesia?

Instability of brain activity during sleep and anesthesia underlies the pathobiology of Alzheimer's disease, study finds

Anesthesia: Double chalice breaks the blockade

Here’s How Anesthesia Affects Your Brain

Bio-Inspired Slow-Release System: Mimicking Nature To Provide Long-Lasting Local Anesthesia