OBJECTIVE: To study the relationship between the serum levels of @entity623 (AP) and @entity880 dehydrogenase (LDH), and the percentage of @entity39 ( @entity39 ) in @entity1 with Ewing  s Sarcoma ( @entity2828 ) . METHODS: This is a case series with retrospective evaluation of @entity1 with diagnosis of @entity2828 divided into 2 groups: Group 1, patients whose serum levels of @entity623 ( @entity623 ) and @entity880 dehydrogenase (LDH) were obtained in the staging phase before preoperative chemotherapy (CT), and Group 2, @entity1 whose values were measured after completion of the preoperative CT. The percentage of @entity39 ( @entity39 ) of surgical specimens extracted in surgery was also evaluated . RESULTS: Eighty four medical records from 1995 to 2015 were included. Both AP as LDH decreased in the @entity1 studied, the pre CT value being higher than the post CT value. The average decrease of LHD was 272.95 U/L and AP was 10.17 U/L. The average @entity39 was 65.12 %. There was no statistical correlation between serums levels and the @entity39 percentage . CONCLUSION: The serum levels values of AP and LDH are not predictors for chemotherapy-induced @entity39 in @entity1 with @entity2828 . Level of Evidence IV, Case Series.

SERUM VALUES OF @entity623 AND XXXX DEHYDROGENASE IN EWING'S SARCOMA.

@entity1 :: ('9606', 'Species') :: ['patients'] @entity2828 :: ('MESH:D012512', 'Disease') :: ['ES'] @entity39 :: ('MESH:D009336', 'Disease') :: ['TN', 'necrosis', 'tumor necrosis'] @entity880 :: ('MESH:D019344', 'Chemical') :: ['lactate'] @entity623 :: ('250', 'Gene') :: ['ALP', 'alkaline phosphatase']
@entity880 :: (MESH:D019344,Chemical) :: ['LACTATE']
