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Updated: Jun 12, 2026

Recording Brain Electromagnetic Activity During the Administration of the Gaseous Anesthetic Agents Xenon and Nitrous Oxide in Healthy Volunteers
Published on: January 13, 2018
Cognitive impairment and general anaesthesia - Case report.
Paola Presecki1, Mate Mihanović, Ninoslav Mimica
1Psychiatric Hospital Sveti Ivan, HR- 10090 Zagreb, Croatia. pbsvi@pbsvi.hr
Cholinergic receptor degeneration can cause Alzheimer's disease (AD). General anesthesia may worsen cognitive deficits in patients with memory impairment, potentially accelerating AD progression.
Area of Science:
- Neuroscience
- Gerontology
- Pharmacology
Background:
- Cholinergic receptor degeneration is linked to memory disorders and cognitive decline, potentially leading to Alzheimer's disease (AD).
- Early AD symptoms can mimic depression, complicating differential diagnosis and timely treatment.
- Many Alzheimer's patients remain undiagnosed, hindering appropriate clinical management.
Observation:
- General anesthesia agents reduce cholinergic transmission, impacting consciousness, pain, movement, and memory.
- In individuals with pre-existing memory and cognitive issues, general anesthesia can negatively influence the postoperative outlook for degenerative brain conditions.
- A case study details a patient whose preoperative cognitive and memory impairments worsened significantly after general anesthesia, presenting as Alzheimer's disease.
Findings:
- General anesthesia poses a risk to patients with compromised cognitive function.
- Postoperative deterioration of cognitive and memory functions can occur following anesthesia.
- Anesthesia may exacerbate underlying degenerative cerebral processes.
Implications:
- Highlights the critical need for careful preoperative assessment of cognitive status in patients undergoing anesthesia.
- Suggests a potential link between general anesthesia and the acceleration of neurodegenerative diseases like Alzheimer's.
- Emphasizes the importance of differential diagnosis for memory disorders and the potential impact of iatrogenic factors on cognitive decline.
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