2007, Number 1
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ABSTRACTObjetive: To investigate if caudal block decreases the requirements for fentanyl by endovenous path in patients with submissive anorectal surgery. Material and methods: 40 adult patients were studied, randomly dived into two groups with 20 subjects each one. After the endovenous induction, caudal block with ropivacaine 0.1% with volume of 14 milliliters was applied into group as well as the number of patients who required it were registered, in both groups: group A (caudal block) and B (without caudal block). Results: The registry of the subsequent doses of fentanyl was greater in group B; three patients (15%) of group A received extra dose of fentanyl to 1 µg/kg/dosis, whereas in group B there were six patients (30%). Conclusions: Caudal block with ropivacaine does not decrease the necessity of subsequent doses of fentanyl; in our study the group A registry smaller extra doses, but was not statistically significant (p = 0.488).
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