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Tumor lysis syndrome.

Aruna Rajendran1, Deepak Bansal, R K Marwaha

  • 1Hematology/Oncology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India.

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PubMed
Summary
This summary is machine-generated.

Tumor lysis syndrome (TLS) is a life-threatening emergency caused by rapid tumor cell breakdown, leading to metabolic derangements. Early prevention with hydration and medications like rasburicase is crucial for managing TLS, especially in pediatric oncology.

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Area of Science:

  • Oncology
  • Pediatric Emergency Medicine
  • Nephrology

Background:

  • Tumor lysis syndrome (TLS) is a critical condition characterized by metabolic abnormalities including hyperkalemia, hyperphosphatemia, hyperuricemia, and hypocalcemia.
  • It results from the rapid breakdown of malignant cells, often triggered by chemotherapy or occurring spontaneously in highly susceptible cancers.
  • Malignancies with high tumor burden and rapid cell turnover, such as acute lymphoblastic leukemia and non-Hodgkin lymphoma, are particularly prone to TLS.

Purpose of the Study:

  • To outline the presentation and management of tumor lysis syndrome (TLS) within the context of a pediatric emergency room.
  • To emphasize the importance of early anticipation and preventive strategies over managing established TLS.
  • To discuss specific challenges and interventions relevant to pediatric oncology patients, particularly in resource-limited settings.

Main Methods:

  • Review of clinical presentation and metabolic derangements associated with TLS.
  • Discussion of cornerstone preventive and treatment strategies, including intravenous hydration.
  • Evaluation of advanced interventions such as rasburicase, exchange transfusion, and dialysis for refractory cases.

Main Results:

  • Vigorous intravenous hydration is fundamental for both TLS prevention and treatment.
  • Rasburicase has significantly advanced TLS management, though cost remains a barrier in some regions.
  • In pediatric patients presenting late with severe anemia and hyperleukocytosis, exchange transfusion may be necessary to enable fluid administration and manage hyperleukocytosis.

Conclusions:

  • Effective management of TLS hinges on proactive identification and preventive measures.
  • A multi-faceted approach involving hydration, pharmacotherapy (e.g., rasburicase), and supportive care (e.g., dialysis) is essential.
  • Tailored interventions, including exchange transfusion for specific pediatric presentations, are vital for optimizing outcomes in TLS management.