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Surgical Swine Model of Chronic Cardiac Ischemia Treated by Off-Pump Coronary Artery Bypass Graft Surgery
09:12

Surgical Swine Model of Chronic Cardiac Ischemia Treated by Off-Pump Coronary Artery Bypass Graft Surgery

Published on: March 27, 2018

Coronary-artery bypass surgery and the brain: persisting concerns

Stanton P Newman1, Michael J G Harrison

  • 1Unit of Health Psychology, University College London Medical School, Middlesex Hospital, Mortimer Street, London, UK. S.Newman@ucl.ac.uk

The Lancet. Neurology
|July 10, 2003
PubMed

Insights

Coronary-artery bypass surgery (CABS) mortality is decreasing, but brain damage remains a concern. Improved surgical techniques reduce microemboli and neuropsychological issues, though further neuroprotective strategies are needed.

Area of Science:

  • Cardiovascular Surgery
  • Neuroscience
  • Medical Technology

Background:

  • Mortality rates for coronary-artery bypass surgery (CABS) have declined.
  • Neuropsychological complications following CABS persist despite reduced mortality.
  • Brain damage after CABS is attributed to multiple factors including microembolism and altered perfusion.

Purpose of the Study:

  • To review the multifactorial causes of brain damage after CABS.
  • To identify risk factors associated with cerebral changes post-CABS.
  • To evaluate the impact of surgical technique advancements on neurological outcomes.

Main Methods:

  • Review of existing literature on CABS and neurological outcomes.
  • Analysis of risk factors contributing to cerebral complications.
  • Assessment of the effectiveness of new surgical technologies.

Main Results:

  • Microemboli are linked to neuropsychological deterioration after CABS.
  • Older age, diabetes, and aortic calcification are key risk factors for cerebral changes.
  • Arterial-line filters and membrane oxygenators have reduced microemboli and associated disturbances.

Conclusions:

  • While surgical advancements have mitigated some neurological risks, brain damage after CABS remains an issue.
  • Ongoing research into surgical techniques and neuroprotective strategies is crucial.
  • Addressing multifactorial causes is essential for improving patient outcomes after CABS.

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