NCT03663413

Oculocardiac Reflex Brain Wave Monitor

The Oculocardiac Reflex Influenced at Different Levels of Brain Wave Monitoring

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 188 (actual)
• Sponsor: Alaska Blind Child Discovery · Academic / Other
• Sex: All
• Age: 3 Months
• Healthy volunteers: Not accepted

Summary

Oculocardiac reflex during routine strabismus surgery was prospectively observed in association with routine brain wave monitoring. Providence Hospital institutional review board (IRB) approved this observational study without need for consent.

Detailed description

Introduction: The oculocardiac reflex (OCR), bradycardia that occurs during strabismus surgery, is blocked by anticholinergics and enhanced by opioids and dexmedetomidine. Two recent studies suggest that deeper inhalational anesthesia monitored by bispectral index (BIS) protects against OCR; the investigators wondered if our data correlated similarly. Methods: In an ongoing, prospective study of OCR elicited by 10-second, 200 gram square-wave traction on extraocular muscles (EOM) from 2009 to 2013, anesthetic depth was estimated in cohorts using either BIS or Narcotrend monitors. The depth of anesthesia was deliberately varied between first and second EOM tested.

Conditions

• Bradycardia
• Strabismus

Interventions

Type	Name	Description
DEVICE	non-invasive monitor	cutaneous EEG monitor

Timeline

• Start date: 2009-08-27
• Primary completion: 2013-11-21
• Completion: 2013-11-21
• First posted: 2018-09-10
• Last updated: 2020-10-19