RESUMO
Convulsions developed in two patients after retrobulbar block. The amount of local anesthetic agent that was used was considerably less than the intravenous toxic dose in both cases. No retrobulbar hemorrhage resulted. The probable cause of seizures was inadvertent injection of local anesthetic directly to the CNS via the ophthalmic artery or its sheath.
Assuntos
Bupivacaína/efeitos adversos , Epilepsia Tônico-Clônica/induzido quimicamente , Lidocaína/efeitos adversos , Bloqueio Nervoso/efeitos adversos , Descolamento Retiniano/cirurgia , Recurvamento da Esclera , Idoso , Anestesia Local/efeitos adversos , Epinefrina/efeitos adversos , Olho/inervação , Humanos , Injeções Intra-Arteriais/efeitos adversos , Masculino , Artéria OftálmicaRESUMO
A new surgical procedure, virtectomy, for alleviation of blindness caused by previously intractable vitreous disease, is described. Special demands of vitrectomy upon the anesthesiologist are enumerated. Problems presented by a patient population, 83 percent of whom suffered from severe diabetes mellitus and/or hypertension with a variety of complications, are discussed. Anesthetic technic used for 47 patients undergoing vitrectomy is described.