Therapeutic Use of Filgrastim for Established Febrile Neutropenia Is Cost Effective Among Patients With Solid Tumors and Lymphomas

Comparison of Different Doses of Granulocyte Colony-stimulating Factor in the Treatment of High-risk Febrile Neutropenia in Children With Cancer

Febrile neutropenia (FEN) is a significant side effect after chemotherapy, and it is known that using granulocyte colony-stimulating factor (G-CSF) has positive effects on treatment results. In this study, the effects of different G-CSF doses (5 to 10 mcg/kg/day) on treatment results in patients with high-risk FEN were evaluated. A total of 124 high-risk FEN episodes of 62 patients were enrolled in the study between June 2017 and October 2018. The episodes were divided into 2 groups according to G-CSF treatment doses, they received from 5 to 10 mcg/kg/day. The clinical characteristics of the patients, the treatments they received, laboratory findings, microbiologic results, and cost analysis were recorded. No statistically significant difference was found between 2 groups in terms of the mean duration of recovery from neutropenia, duration of fever, total length of hospital stay, duration of FEN episode, duration of G-CSF use, costs, bacteremia frequency, and other treatments. In patients with solid tumors, the cost of filgrastim was significantly higher in the high-dose G-CSF group. Using different doses of G-CSF in high-risk FEN episodes did not show any different effects on clinical and treatment results. The dose of 5 mcg/kg/day would be more appropriate in FEN treatment.

Granulocyte Colony Stimulating Factor (G-CSF) Induced Splenic Infarction in Breast Cancer Patient Treated with Dose-Dense Chemotherapy Regimen

Introduction

Granulocyte colony-stimulating factor (G-CSF) is commonly used for prevention and treatment of febrile neutropenia among solid tumor patients. It is considered an effective and relatively safe supportive care medication; however, it can cause rare and serious side effects such as spleen rupture or infarction.

Case Presentation

We are reporting a case of a 27-year-old female with breast cancer who has been treated with dose-dense chemotherapy and received colony-stimulating factor as primary prevention of febrile neutropenia that was complicated halfway through with splenic infarction. This finding was confirmed by computed tomography (CT) scan and splenic biopsy. Management was conservative without the need of surgical intervention.

Conclusion

Although splenic infarction is an extremely rare side effect of G-CSF, it can be a serious complication that should be recognized, monitored, and managed carefully.