RESULTS : The bupivacaine/rofecoxib group reported significantly less pain , as assessed by a visual analog scale , compared with the other three treatment groups over the first 4 h. However , the bupivacaine/placebo group reported significantly more pain at 24 h and PGE2 levels during the first 4 h were significantly higher than the other three treatment groups .
O O O B-ChemicalEntity O O O O B-DiseaseOrPhenotypicFeature O O O O O O O O O O O O O O O O O O O O O O O O B-ChemicalEntity O O O O B-DiseaseOrPhenotypicFeature O O O O B-GeneOrGeneProduct O O O O O O O O O O O O O O O O