title: [Anesthetic agents and visual evoked potentials in patients undergoing transphenoidal or breast reconstruction surgery].
abstract: To study the effect of general anesthesia with diazepam, fentanyl and nitric oxide, a common combination during the intraoperative recording of visual evoked potentials (VEP) in transsphenoidal surgery, we compared the amplitude and latency of VEP components before anesthesia and at four moments after induction during the first hour of elective breast surgery in 20 patients with no neurological deficits. The results for these patients (group I) before anesthesia and 15 min after induction were also compared to presurgical recordings for 19 patients with hypophysial tumors and histories visual field and acuity involvement (group II). Latency increased significantly as a result of anesthesia whereas amplitude was affected to a lesser degree. Changes in latency of the main positive component was after anesthesia was the only parameter that was significantly different for the two group studied, variation being greater in group II.
authors.affiliation: Hospital Clínico Quirúrgico Hermanos Ameijeiras, La Habana, Cuba.
authors.forename: S
authors.initials: S
authors.lastname: Damiani Cavero
authors.forename: C
authors.initials: C
authors.lastname: Viera Alemán
authors.forename: C
authors.initials: C
authors.lastname: Santos Anzorandia
authors.forename: J
authors.initials: J
authors.lastname: Bacallao Gallestey
authors.forename: E
authors.initials: E
authors.lastname: Febles Piñar
authors.forename: M
authors.initials: M
authors.lastname: Rivero Moreno
mesh_terms: D000328:Adult; D000768:Anesthesia, General; D018686:Anesthetics, Intravenous / Q000008:administration & dosage / Q000627:therapeutic use*; D003975:Diazepam / Q000008:administration & dosage / Q000627:therapeutic use*; D005074:Evoked Potentials, Visual; D005260:Female; D005283:Fentanyl / Q000008:administration & dosage / Q000627:therapeutic use*; D006801:Humans; D016462:Mammaplasty; D008875:Middle Aged; D009569:Nitric Oxide / Q000008:administration & dosage / Q000627:therapeutic use*; D010911:Pituitary Neoplasms / Q000601:surgery; D013100:Sphenoid Bone / Q000601:surgery*; D014786:Vision Disorders
chemical_list: D018686:Anesthetics, Intravenous; D009569:Nitric Oxide; D003975:Diazepam; D005283:Fentanyl
vernacular_title: Anestésicos y potenciales evocados visuales en pacientes durante cirugía transesfenoidal y cirugía reconstructiva de mama.