A Study to Compare Bifrontal Montage Agreement


About this study

The purpose of this study is to determine measurement difference and variability of bispectral index (BIS) values when monitored in a bilateral frontal montage.

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Contact the study team to discuss study eligibility and potential participation.

Inclusion Criteria:

  • Adult patient having elective cardiac surgery.

Exclusion Criteria: 

  • Patient refusal.
  • Pediatric patients.
  • Emergency procedure.
  • Patients with known or suspected carotid or erebrovascular disease.
  • Patients with prior stroke.
  • Skin condition or anatomy preventing proper sensor placement.


Participating Mayo Clinic locations

Study statuses change often. Please contact the study team for the most up-to-date information regarding possible participation.

Mayo Clinic Location Status

Rochester, Minn.

Mayo Clinic principal investigator

Wade Kreun, R.N.

Closed for enrollment

More information


Publications are currently not available

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