title: Succinylcholine alteration of the forced duction test.
abstract: Prior to strabismus surgery, succinylcholine produces a sustained contraction of the extraocular muscles that interferes with an accurate interpretation of the forced duction test (FDT) for up to 20 minutes. Pancuronium, a nondepolarizing muscle relaxant, does not alter the FDT. Suggestions are given for management of anesthetic induction with or without muscle relaxants to facilitate intubation.
mesh_terms: D000293:Adolescent; D000769:Anesthesia, Inhalation; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007442:Intubation, Intratracheal; D009119:Muscle Contraction; D009801:Oculomotor Muscles / Q000187:drug effects*; D010197:Pancuronium / Q000494:pharmacology; D013285:Strabismus / Q000175:diagnosis / Q000601:surgery*; D013390:Succinylcholine / Q000009:adverse effects*
chemical_list: D013390:Succinylcholine; D010197:Pancuronium