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Management of infections in children with cancer
1Ohio State University College of Medicine and Pharmacy, Columbus.
Insights
Fever in children with cancer, particularly those with granulocytopenia, requires immediate, broad-spectrum antibiotics and close monitoring. Fungal infections are common in unexplained fevers and respond to amphotericin B.
Area of Science:
- Pediatric Oncology
- Infectious Diseases
- Hematology
Background:
- Infectious complications are a major cause of morbidity and mortality in pediatric cancer patients, especially those with granulocytopenia.
- Febrile episodes in these immunocompromised children necessitate urgent and aggressive management due to potentially life-threatening infections.
- Subtle or absent inflammatory signs in granulocytopenic patients complicate early diagnosis and treatment.
Purpose of the Study:
- To outline the critical approach to managing febrile episodes in pediatric cancer patients with granulocytopenia.
- To emphasize the importance of prompt diagnosis and appropriate antimicrobial therapy.
- To discuss current therapeutic options and future directions in preventing and treating infections in this vulnerable population.
Main Methods:
- Comprehensive history taking and meticulous physical examinations are essential for identifying signs of infection.
- Immediate initiation of broad-spectrum intravenous antibiotics after obtaining diagnostic microbiology specimens.
- Close patient monitoring with daily physical examinations and laboratory studies to guide therapy adjustments.
Main Results:
- Bacterial infections are the most common cause of febrile episodes and are typically responsive to appropriate antibiotic therapy.
- Unexplained persistent fever and granulocytopenia may indicate fungal infections, often treatable with amphotericin B.
- Current antimicrobial agents are generally adequate for common pathogens, with the exception of cytomegalovirus.
Conclusions:
- Prompt and aggressive management of febrile episodes is crucial for improving outcomes in pediatric cancer patients.
- Antimicrobial therapy, guided by microbiological data, is effective for most bacterial infections.
- Future advancements in immunotherapy hold promise for preventing infectious complications and enhancing survival rates in pediatric cancer patients.
Abstract:
Infectious complications remain a frequent cause of morbidity and mortality in children with cancer, especially in those who are granulocytopenic. Physicians caring for these children must approach each new febrile episode as if it were life threatening. Questions concerning the present illness must be comprehensive. The physical examination should be done in a compulsive manner because the more obvious signs of inflammation are often absent because of granulocytopenia. Immediate initiation of broad-spectrum intravenous antibiotic coverage is required once the appropriate specimens for diagnostic microbiology studies have been obtained. Because these patients may exhibit either dramatic or, more often, only subtle clinical findings, they must be monitored closely and have a complete physical examination at least daily. The laboratory studies frequently determine the etiology of the fever. Therapy can then be modified, based upon the particular pathogen isolated or the type of infection identified. Because bacterial infections are responsible for most infectious febrile episodes in the granulocytopenic child with cancer, appropriate antibiotic therapy usually is curative. However, some patients remain febrile and granulocytopenic without explanation. These patients frequently have a fungal infection and respond to amphotericin B therapy. Our present armamentarium of antimicrobial agents against the common pathogens encountered in cancer patients, except for cytomegalovirus, is adequate. Future advances in therapy of infections in children with cancer will probably be in the area of immunotherapy. This would include both passive administration of products to strengthen a debilitated immune system, together with active immunization with the aim to prevent infectious complications. Prevention of infection in the cancer population may be one of the keys to producing longer remissions and prolonged overall survival, by enabling pediatric oncologists to administer more intensive induction chemotherapy.