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Related Experiment Video

Updated: Nov 26, 2025

Novel and Innovative Hybrid Technique for Type A Aortic Dissection
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Brain Protection in Aortic Arch Surgery: An Evolving Field.

Jason Z Qu1, Lee-Wei Kao1, Jennifer E Smith1

  • 1Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA.

Journal of Cardiothoracic and Vascular Anesthesia
|December 14, 2020
PubMed
Summary

Brain protection during aortic arch surgery is crucial. Moderate hypothermia with antegrade cerebral perfusion offers a safe strategy to minimize brain injury during circulatory arrest.

Keywords:
DHCAaortic arch surgerybrain protectioncardiac anesthesiacardiac surgerycerebral perfusiondeep hypothermic circulatory arrest

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Area of Science:

  • Cardiovascular Surgery
  • Neurology
  • Anesthesiology

Background:

  • Aortic arch surgery with circulatory arrest carries a high risk of brain injury.
  • Intraoperative brain ischemia is a significant factor contributing to neurologic dysfunction.

Purpose of the Study:

  • To review brain protection strategies during aortic arch surgery.
  • To identify optimal methods for minimizing intraoperative brain injury.

Main Methods:

  • Review of brain monitoring techniques (EEG, TCD, NIRS).
  • Evaluation of brain protection methods including hypothermia and cerebral perfusion.
  • Analysis of deep hypothermic circulatory arrest (DHCA) versus antegrade cerebral perfusion (ACP).

Main Results:

  • Moderate hypothermia with unilateral antegrade cerebral perfusion is considered safe.
  • Neurologic outcomes depend on cerebral temperature, arrest time, and perfusion.
  • Individualized strategies based on comprehensive monitoring are essential.

Conclusions:

  • Optimal brain protection in aortic arch surgery requires balancing temperature, arrest time, and perfusion.
  • Antegrade cerebral perfusion may obviate the need for deep hypothermia.
  • Individualized, monitored approaches enhance neurologic outcomes.