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Effectiveness of pharmacologic interventions for prevention of cerebral hyperperfusion syndrome following bypass

Georgios P Skandalakis1,2, Aristotelis Kalyvas1,3, Evgenia Lani1,4

  • 1Athens Microneurosurgery Laboratory, Department of Neurosurgery, University of Athens, Athens, Greece.

Brain Circulation
|May 14, 2023
PubMed

Insights

Preventing cerebral hyperperfusion syndrome (CHS) after bypass surgery requires more than just blood pressure control. Combining blood pressure management with free radical scavengers, antiplatelets, or sedation significantly reduces CHS incidence.

Area of Science:

  • Neurosurgery
  • Vascular Surgery
  • Neurology

Background:

  • Cerebral hyperperfusion syndrome (CHS) is a significant risk following bypass surgery, leading to neurological complications.
  • Effective prevention strategies for bypass-related CHS are not well-established.

Purpose of the Study:

  • To systematically review existing literature on the prevention of bypass-related cerebral hyperperfusion syndrome.
  • To evaluate the effectiveness of various pharmacologic interventions in preventing CHS.

Main Methods:

  • A systematic literature search was conducted on PubMed and Cochrane Library (September 2008-September 2018).
  • Data on pharmacologic interventions for preventing bypass-related CHS were analyzed using random-effects meta-analysis.
  • Interventions were categorized into blood pressure control alone, and in combination with free radical scavengers, antiplatelets, or postoperative sedation.

Main Results:

  • The meta-analysis included 23 studies with 2,041 cases.
  • Blood pressure control alone resulted in a 23.3% CHS incidence.
  • Combinations of blood pressure control with free radical scavengers, antiplatelets, or postoperative sedation showed reduced CHS rates (0.3% to 10.3%).

Conclusions:

  • Blood pressure control alone is insufficient for preventing cerebral hyperperfusion syndrome post-bypass.
  • Combining blood pressure management with free radical scavengers, antiplatelet agents, or postoperative sedation appears effective in reducing CHS incidence.
Abstract

Keywords:
Bypass surgerycerebral bypasscerebral hyperperfusion syndromecerebral revascularizationhyperperfusion syndromeintracranial bypassreperfusion injury

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