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Clinical Trial Summary

Observation study monitoring vital signs and anesthetic variables particularly heart rate during prospective, ocular manipulation and specifically uniform tension on extra ocular muscles during strabismus surgery. *IRB approval from 1992 covered in letter from then IRB chair Dr. Judith Whitcomb, Anchorage, Alaska (letter 10/2020).*


Clinical Trial Description

Patients with ocular manipulation including those scheduled for strabismus surgery will have peri-operative variables monitored before, during and after uniform traction on extra ocular muscles (EOM). The oculocardiac reflex (OCR) will be elicited by quantified (200 gram, 10-second, square-wave) traction on Jameson muscle hook under insertion of an extra ocular muscle (EOM, rectus). Stable pre-tension heart rate, and greatest change heart rate will be recorded. Additional variables to be recorded: birthdate, gender, race, weight, iris color, pre-operative neurodevelopmental conditions, pre-operative medications, induction medications, expired carbon dioxide (CO2) levels, exhaled gas concentrations, anticholinergic medications, opioids, muscle relaxants, type of airway and the number of EOM operated. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04353960
Study type Observational
Source Alaska Blind Child Discovery
Contact Robert W Arnold, MD
Phone 907-242-6180
Email eyedoc@alaska.net
Status Recruiting
Phase
Start date September 1, 1992
Completion date December 31, 2035

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