Researchers Release First Real-Time Video of Brain Losing Consciousness Under Anesthesia
The findings from the new technique have shown that consciousness fades "as though a dimmer is being dialed down" rather than switches off, according to the report. The research also shows that consciousness inhabits the connections between multiple areas of the brain. The images show that changes in the anesthetized brain begin in the midbrain, where there are many receptors for a neurotransmitter called GABA.
Propofol and other anesthetics act on these receptors to enhance the effects of GABA, which inhibits cellular activity. Changes move from the midbrain to other parts of the brain, and consciousness slips away as the drug moves to different areas.
The new technique measure brain activity by using imperceptible electrical currents produced by electrodes placed on the patient's head. Unlike fMRI, fEITER — or functional electrical impedance tomography by evoked response — does not require the patient to be inside a magnetic field.
Read the TIME report and watch the video of the brain becoming unconscious.
Related Articles on Anesthesia:
ASA Presents 6 Tactics to Relieve Drug Shortages
Study: Patient Expectations Alter the Effect of Analgesia
Special Oxygen Mask Could Provide Safe Alternative to Intubation
© Copyright ASC COMMUNICATIONS 2016. Interested in LINKING to or REPRINTING this content? View our policies by clicking here.
To receive the latest hospital and health system business and legal news and analysis from Becker's Hospital Review, sign-up for the free Becker's Hospital Review E-weekly by clicking here.
- C-arm for orthopedic surgery: Radiation exposure 'well within permissible limits'
- Medications, dietary supplements are a dangerous mixture — 3 things to know
- 10 initial steps following ASC medical errors
- FMT helps reduce recurring episodes of C. Diff in children: 4 findings
- GIQuIC registry hits 3M colonoscopy cases: 5 things to know