[Continuous spinal anesthesia in patients of advanced age].
D000368:Aged; D000775:Anesthesia, Spinal; D002404:Catheterization; D006801:Humans; D008012:Lidocaine / Q000008:administration & dosage*; D008722:Methods; D011145:Polyvinyls
D011145:Polyvinyls; D008012:Lidocaine
Raquianestesia contínua em pacientes de idade avançada.