Ropivacaine undergoes slower systemic absorption from the caudal epidural space in children than bupivacaine.

We compared the systemic absorption of ropivacaine and bupivacaine after caudal epidural administration in children. Twenty ASA physical status I or II children aged 1–7 yr undergoing elective hypospadias repair were randomized after the induction of general anesthesia to receive a single caudal epi

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