[Electrocardiographic changes in the course of endorbital operations].
D004569:Electroencephalography; D005123:Eye; D006801:Humans; D013508:Ophthalmologic Surgical Procedures; D009885:Ophthalmology / Q000601:surgery*; D009915:Orbit / Q000601:surgery*
ELECTROENCEPHALOGRAPHY; OPHTHALMOLOGY/surgery; ORBIT/surgery