title: Sub-Tenon's anesthesia with a retained catheter in ocular surgery of longer duration.
abstract: A sub-Tenon's anesthesia technique was developed that is suitable for surgical procedures of longer duration. After application of a small amount of anesthetic agent in the standard manner, a thin polyethylene catheter is introduced under Tenon's capsule and fixated. The catheter is used to inject more anesthetic agent during the procedure. This anesthesia regimen provides unlimited time for surgery without the risks of losing anesthetic effect and without using a potentially toxic, long-term local anesthetic agent.
authors.affiliation: Department of Ophthalmology, Norrlands University Hospital, Umea, Sweden.
authors.forename: A
authors.initials: A
authors.lastname: Behndig
mesh_terms: D000772:Anesthesia, Local / Q000379:methods*; D000779:Anesthetics, Local / Q000008:administration & dosage; D002404:Catheterization / Q000379:methods*; D003238:Connective Tissue / Q000187:drug effects*; D006801:Humans; D008012:Lidocaine / Q000008:administration & dosage; D013508:Ophthalmologic Surgical Procedures
chemical_list: D000779:Anesthetics, Local; D008012:Lidocaine