Research Article

Effects of Surgery Combined with Different Chemotherapy on Matrix Metalloproteinase-9 and Tissue Inhibitors of Metalloproteinase-1 in Children with Neuroblastoma

Table 4

Surgical resection.

Group A (n = 50)Group B (n = 42)χ2

After initial chemotherapy first surgeryComplete resection43 (46.74)25 (50.00)18 (42.86)0.4680.494
Majority excision7 (7.61)2 (4.00)5 (11.90)1.0600.303
Incomplete resection6 (6.52)3 (6.00)3 (7.14)0.0410.839
Delayed surgery36 (39.13)20 (40.00)16 (38.10)0.0350.852
Surgical resection range56 (60.87)30 (60.00)26 (61.90)

Final surgeryComplete resection16 (17.39)8 (40.00)8 (19.05)0.3600.549
Majority excision11 (11.96)8 (40.00)3 (7.14)1.0230.312
Incomplete resection9 (9.78)4 (20.00)5 (11.90)0.1500.699
Delayed surgery0 (0.00)0 (0.00)0 (0.00)
Surgical resection range100 (100.00)100 (100.00)100 (100.00)

Complete resection refers to the resection rate of the lesion exceeding 90%. Majority resection refers to the resection rate of the lesion ranging from 90% to 95%. Incomplete resection refers to the resection rate of the lesion ranging from 50% to 90%. Delayed surgery refers to the expected surgical resection of the lesion range not exceeding 50%.