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Various sedation levels offer significant advantages in facilitating procedural interventions for patients undergoing medical or invasive surgical procedures. These levels span from anxiolysis to general anesthesia, providing a spectrum of sedative effects to cater to specific patient needs. Anxiolysis reduces anxiety and is achieved through minimal sedation, enabling patients to remain awake and responsive while feeling more at ease during the procedure. This level can benefit minor...
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Highlighting and Reducing the Impact of Negative Aging Stereotypes During Older Adults' Cognitive Testing
06:58

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Published on: January 24, 2020

Cognitive decline in the elderly: is anaesthesia implicated?

Brendan Silbert1, Lisbeth Evered, David A Scott

  • 1Centre for Anaesthesia and Cognitive Function, Department of Anaesthesia, St Vincent's Hospital, Victoria Parade, Melbourne, Victoria, Australia. brendan.silbert@svhm.org.au

Best Practice & Research. Clinical Anaesthesiology
|September 20, 2011
PubMed
Summary
This summary is machine-generated.

Postoperative cognitive dysfunction (POCD) may affect patients undergoing various procedures, shifting focus to individual susceptibility. Research linking POCD, mild cognitive impairment (MCI), and Alzheimer's disease (AD) could accelerate preventive strategies.

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Published on: January 13, 2018

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Recording Brain Electromagnetic Activity During the Administration of the Gaseous Anesthetic Agents Xenon and Nitrous Oxide in Healthy Volunteers
14:52

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Published on: January 13, 2018

Area of Science:

  • Anesthesiology and Neurology
  • Neuroscience and Aging Research

Background:

  • Postoperative cognitive dysfunction (POCD) is increasingly recognized beyond cardiac surgery, extending to non-cardiac procedures and even sedation.
  • The understanding of POCD has evolved from procedure-specific to patient susceptibility, acknowledging pre-existing cognitive impairments like mild cognitive impairment (MCI).

Purpose of the Study:

  • To explore the relationship between surgery, anesthesia, and cognitive decline, particularly its parallels with Alzheimer's disease (AD).
  • To investigate whether POCD is a transient issue or a precursor to long-term cognitive deterioration and dementia.

Main Methods:

  • Reviewing the shift in focus for POCD research from surgical type to patient susceptibility.
  • Considering the potential of cerebrospinal fluid (CSF) analysis for early AD diagnosis to identify at-risk individuals.
  • Examining animal study findings on volatile anesthetics' potential impact on AD pathology, specifically amyloid-beta processing.

Main Results:

  • POCD is associated with a broader range of procedures than previously thought.
  • Pre-existing conditions like MCI in elderly patients undergoing surgery are a significant factor in POCD.
  • Animal models suggest volatile anesthetics might influence AD-related pathological processes.

Conclusions:

  • Aligning anesthesia and AD research is crucial for understanding and potentially preventing cognitive decline.
  • Identifying susceptible individuals through methods like CSF analysis could enable early intervention.
  • Establishing a link between anesthesia, POCD, MCI, and AD offers a pathway to develop preventive strategies for a large population.