Related Experiment Video
Updated: Aug 14, 2026

Subcutaneous Infection of Methicillin Resistant Staphylococcus Aureus (MRSA)
Published on: February 9, 2011
[Septicemia in children with malignant disease]
Y Hatae1, T Takeda, H Nakadate
1Dept. of Pediatrics, National Sapporo Hospital, Hokkaido Cancer Center.
Insights
Childhood cancer patients with neutropenia (low neutrophil count) face a high risk of septicemia (blood infection). Lower granulocyte counts significantly increase the likelihood of infection and death in these vulnerable children.
Area of Science:
- Pediatric Oncology
- Infectious Diseases
- Hematology
Background:
- Severe infections are a leading cause of death in pediatric cancer patients.
- Septicemia poses a significant threat, contributing to morbidity and mortality in this population.
- Understanding risk factors is crucial for improving outcomes.
Purpose of the Study:
- To analyze the incidence, causative organisms, and mortality of septicemia in children with malignancy.
- To identify key risk factors, particularly neutrophil counts, associated with septicemia development and outcomes.
- To evaluate differences in septicemia occurrence between hematologic and solid tumors.
Main Methods:
- Retrospective analysis of 1,468 childhood cancer patients treated between 1979 and 1988.
- Data collection on septicemia episodes, including causative pathogens and patient characteristics.
- Correlation of absolute neutrophil count (ANC) with septicemia incidence and mortality.
Main Results:
- 34 septicemia episodes occurred; higher incidence and mortality in hematologic malignancies versus solid tumors.
- Klebsiella pneumoniae and Staphylococcus epidermidis were the most common pathogens; Gram-negative bacteria predominated.
- Neutropenia, especially ANC < 500/µL and granulocyte count < 100/µL, was strongly associated with septicemia and death.
Conclusions:
- Neutropenia is a critical risk factor for septicemia in pediatric malignancy.
- Close monitoring and management of neutropenic children with cancer are essential to reduce septicemia-related mortality.
- Early detection and appropriate antimicrobial therapy are vital for improving survival rates.
Abstract:
Severe infection is a major cause of morbidity and mortality in patients with malignancy. In this study, 34 episodes of septicemia occurred in 1,468 childhood patients with malignancy who admitted and were treated at National Sapporo Hospital between 1979 and 1988. The occurrence of septicemia and its mortality rate were higher in malignant hematologic disease than in malignant solid tumor. Most cases of septicemia occurred in relapse. The most frequent organism causing septicemia were Klebsiella pneumoniae (16.3%) and Staphylococcus epidermidis (16.3%). Septicemia due to Gram-negative organism was more frequent than that of Gram-positive organism or fungus. Polymicrobic septicemia occurred 3 times and multiple episodes 6 times. They had a high mortality rate. Neutropenia was strongly associated with episode of septicemia. In our series, absolute neutrophil count under 500 per microliter developed septicemia. Especially, children with less than 100 granulocytes per microliter had a major risk factor for the development of infection and death. No children with granulocyte count greater than 1000 per microliter died in connection with septicemia.
Related Concept Videos
Rous Sarcoma Virus (RSV) and Cancer
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...
Rocky Mountain Spotted Fever
Bacterial Meningitis
Viral Meningitis
Bacterial Meningitis I: Introduction
Bacterial Meningitis II: Pathophysiology

