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Satellite Manual

4.6 Immunization of Children with Cancer

4.7 Transfusion

Transfusion of Red Blood Cells
Red blood cell transfusion is generally indicated in an oncology patient for:

  • Hemoglobin level of <70 g/L in patients receiving chemotherapy and/or radiotherapy.
  • Significant preoperative anemia (hemoglobin level <80 g/L) in emergency surgical cases.

The risk/benefit ratio of administering an RBC transfusion to a patient with an Hb level greater than 70 g/L needs to be considered.  When determining whether to administer RBC transfusion to a patient with a Hb level of greater than 70 g/L the following should be considered:

  • Other concurrent illnesses or co-morbidities, signs and symptoms of impaired oxygen delivery, such as significant fatigue and/or persistent headaches.
  • Clinical status, including signs and symptoms of anemia and hemodynamic stability
  • Presence/absence of bleeding or hemolysis
  • Presence of reticulocytosis as a signal of imminent endogenous increase in hemoglobin
  • Expected time for hematological recovery from the most recent chemotherapy cycle
  • Capacity for regular monitoring of the Hb level and providing transfusion (e.g. ability to obtain regular repeat CBC, distance to clinic, weekends/holidays)

Transfusion of Platelets
Chemotherapy often results in thrombocytopenia.  Bleeding in the setting of thrombocytopenia is a clinical indicator for transfusion.  Patients with clinically significant bleeding and platelet counts below 50 X 109/L may benefit from transfusion.  More commonly, prophylactic transfusions are considered in the setting where the platelet count is very low and the risk of significant bleeding is felt to be high. 

Prophylactic Transfusion
Prophylactic platelet transfusions at the threshold levels indicated below are recommended for pediatric oncology patients. (C17 Platelet Transfusion Guideline)

Platelet Prophylactic Transfusion Thresholds

  1. For clinically stable leukemia, lymphoma or non-CNS solid tumours: platelet count <10 X 109/L
  2. For children with CNS tumours:
    • No history of intracranial hemorrhage: platelet count <30 X 109/L
    • Past history of intracranial hemorrhage: platelet count <50 X 109/L
    • Receiving anti-angiogenesis therapies (i.e. bevacizumab): platelet count <50 X 109/L
  3. For children undergoing invasive procedures
    • Lumbar puncture: platelet count <20 X 109/L
    • Major invasive surgery: platelet count <50 X 109/L
    • Neurosurgical procedure: platelet count <100 X 109/L

Patients who are clinically unstable such as those with fever, neutropenia and septic characteristics may benefit from a higher transfusion threshold.

Platelet Dosages
Platelet products supplied by buffy coat pool (300mL), or single donor apheresis platelets (SDP) (~250mL). One buffy coat pool (from 4 donors) has same platelet content as one SDP.

Platelet Dose for Children:

  • 5-10 mL/kg to a maximum of 300 mL of buffy coat pool platelets (adult dose) per transfusion
  • OR 5-10ml/kg of SDP to a maximum of the full SDP unit

Platelet Refractory Patients
For patients who appear to have poor increase in platelet count to transfusion, providers should consider a 1-hour post transfusion platelet count to assess response.  Patients with inadequate response may be considered for HLA antibody testing and possible HLA SDP platelet transfusions in discussion with the referring tertiary centre.

Platelet ABO Compatibility
ABO identical platelets are preferred for platelet transfusion to children whenever possible. ABO plasma incompatible platelets (e.g. Group O platelets given to a Group A patient) may result in hemolysis of the patient’s red cells. To the extent possible, Group O platelets should not be transfused to non-group O pediatric recipients, particularly if the child is not bleeding or undergoing an emergency invasive procedure. In event of platelet shortage, Group O platelets may be given to non-Group patients if the unit is of low titre1 or plasma-reduced.

Platelet Rh Compatibility
Ideally RhD negative recipients should receive RhD negative platelet components. However, this may not be possible for inventory reasons. The risk for an RhD negative recipient of developing RhD alloimmunization after the transfusion of Rh positive platelets is very small (less than 1% in oncology patients).  Female Recipients should receive Rh Immune Globulin if they receive Rh positive platelets.  Inability to give RhD negative platelets to an RhD negative recipient should not be a reason to withhold a necessary platelet transfusion.

Rh Immune Globulin (RhIg) Dosing
The smallest vial (120 mcg or 600 IU) is sufficient regardless of recipient weight, and may be administered IV or IM. The antibody usually lasts about 3 months. A repeat dose may be given within 3 months if anti-D is no longer detectable by antibody screen and more RhD positive platelets have to be transfused.

Transfusion of Frozen Plasma (FP)
Note: Frozen Plasma (FP, frozen within 24 hours) has replaced Fresh Frozen Plasma (FFP, frozen within 8 hours) for most clinical uses.

Indications for Replacement Therapy

  • Bleeding, or an invasive procedure, in a patient with a significantly prolonged PT/INR or PTT (PT/INR/PTT >1.5 x top of age-related normal value) when alternate medical therapy (e.g. vitamin K) is not feasible or effective.

Transfusion of Cryoprecipitate

  • Bleeding, or an invasive procedure, in patients with hypofibrinogenemia (fibrinogen levels <1.0 G/L). Usual dosing is 0.5-1 unit per 5kg of patient mass.

Transfusion of Albumin 

  • Acute correction of hypoalbuminemia when clinically indicated.
  • Correction of hypovolemia when colloid infusion is clinically indicated.

Indications for Transfusion of Cytomegalovirus Antibody Negative (Anti-CMV Negative) Cellular Blood Products (Red Cells and Platelets)

All blood products in Canada are prestorage leukoreduced and considered to be at very low risk for CMV transmission (CMV is transmitted through white cells).  As a result of this, the use of Anti-CMV Negative blood products now has far fewer indications in pediatric oncology. 

Indications for Transfusion of Irradiated Cellular Blood Products (Red Cells and Platelets)

  • Hematopoietic progenitor cell transplant (bone marrow transplant) recipients, both allogeneic and autologous transplants.
  • All patients on chemotherapy (hematologic malignancies, malignant solid tumours, histiocytic disorders and aplastic anemia patients receiving immune suppression). In a setting where irradiated blood products are not immediately available, a consideration of the risk and benefits of irradiation should be discussed with the tertiary centre. In these cases, after consideration of the patient’s chemotherapy regimen and the state of hematopoietic recovery, it may be appropriate to proceed with non-irradiated products.
  • HLA-matched apheresis platelets.

Transfusion Reactions

  • Any transfusion reaction at a satellite centre that results in the need for future pre-medication or blood product special preparation should be reported to the referring tertiary centre
  • Similarly, any premedication and special preparation requirements of blood products determined by the tertiary centre should be communicated to the satellite
  • Note that a single mild transfusion reaction such as urticaria does not require premedication with antihistamines or corticosteroids for all future transfusions

References

  1. Clinical Guide to Transfusion Medicine, Canadian Blood Services, 2013. http://www.transfusionmedicine.ca/sites/transfusionmedicine/files/articles/CGTTChapter13_Jan2014FINAL2.pdf
  2. C17 Guidelines Committee. Guideline for platelet transfusion thresholds for pediatric hematology/oncology patients. Edmonton (Alberta): C17 Council; 2011 https://blood.ca/en/hospitals/circular-information
  3. Pediatric Transfusion: A Physician’s Handbook, 4th edition, AABB 2015
  4. Treleaven, J., Gennery, A., Marsh, J., Norfolk, D., Page, L., Parker, A., et al. (2011, January). Guidelines on the use of irradiated blood components prepared by the British Committee for Standards in Haematology blood transfusion task force. British Journal of Haematology. http://doi.org/10.1111/j.1365-2141.2010.08444.x

1Some transfusion services perform isohemagglutinin titres on group O platelets before transfusion to non-group O patients. If the anti-A titre of a group O platelet is low, the unit may be given to a group A patient. If the anti-B titre of a group O unit is low, the unit may be given to a group B patient. Definitions of low titre (<1:50, <1:64, <1:100, etc) vary by hospital. 

Primary author Dr. Wendy Lau, The Hospital for Sick Children, Toronto with input from Dr. Robert Klaasen, Children’s Hospital of Eastern Ontario, Ottawa, Dr. Vicky Breakey, McMaster Children’s Hospital, Hamilton Health Sciences, Hamilton, and Dr. Lawrence Jardine, Children’s Hospital, London Health Sciences Centre, London.

4.8 When to consult the Tertiary Centre
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In this Section

  • 1.1 History & Overview
  • 1.2 Acknowledgements
  • 1.3 Committees and Working Groups
  • 1.4 Satellite Manual Disclaimer
  • 2.1 Principles of Satellite Care
  • 2.2 Eligible Patients
    • 2.2.1 Children Eligible for Chemotherapy Administration in a Satellite Centre
    • 2.2.2 Children Not Eligible for Chemotherapy Administration in a Satellite Centre
    • 2.2.3 Children Eligible for the Management of Complications on a Satellite Centre
    • 2.2.4 Eligibility of Children Requiring Supportive Care
  • 2.3 Scope of Satellite Practice
    • 2.3.1 Implementation of Psychosocial Treatment Plan (Process for Communication)
    • 2.3.2 Limitations on Satellite Practice
  • 2.4 Advanced Satellite Practice
  • 3.1 Safe Handling, Administration and Disposal of Chemotherapy Agents
  • 3.2 Accidental Exposure/Spills
  • 3.3 Extravasation Management
    • 3.3.1 Sample Extravasation Documenting Tool
  • 3.4 Injecting SC Medication Via an Insuflon
  • 3.5 Chemotherapy Administration Reference List
  • 3.6 Central Venous Catheter Care
  • 3.7 Chemotherapy Quick Reference
    • 3.7.1 Rapid Hydration Document
    • 3.7.2 Provider Guide: Prevention and Management or Irinotecan induced Diarrhea
    • 3.7.3 Parent Handout: Prevention and Management of Irinotean induced diarrhea
    • 3.7.4 Capizzi Methotrexate
    • 3.7.5 Erwinia L-Asparaginase
  • 4.1 Management of Fever and Neutropenia
    • 4.1.1 Routine Order Sample Sheet
    • 4.1.2 Fever Cards (Sample)
    • 4.1.3 Criteria for low-risk designation. Risk categorization refers to risk of bacteremia and serious complications, including mortality.
  • 4.2 Pentamidine Administration
    • 4.2.1 Inhaled Pentamidine
    • 4.2.2 Intravenous Pentamidine
  • 4.3 Antiemetics
  • 4.4 Treatment of Varicella-Zoster Infections
  • 4.5 TPN Document
  • 4.6 Immunization of Children with Cancer
  • 4.7 Transfusion
  • 4.8 When to consult the Tertiary Centre
  • 5.1 Palliative Care Overview
  • 5.2 Communication
  • 5.3 Settings of Care
  • 5.4 Symptom Management
  • 5.5 End of Life
  • 5.6 When a Child Dies in the Satellite Centre
    • 5.6.1 Reconciling your grief
    • 5.6.2 Funeral arrangement checklist
    • 5.6.3 Helping Children who grieve
    • 5.6.4 Coping with the Holidays
    • 5.6.5 The grieve experience
  • 6.1 Goals and Objectives
  • 6.2 Participant Site Selection
    • 6.2.1 Tertiary Site Selection
    • 6.2.2 Community Site Selection
  • 6.3 POGO’s Roles
    • 6.3.1 PHIPA, Privacy and Research
  • 6.4 Funding
    • 6.4.1 Funding Support for Tertiary Activity
    • 6.4.2 Financial Support for Pediatric Oncology Community Activity
  • 6.5 Infrastructure and Formal Requirements
    • 6.5.1 Tertiary Partners’ Role in Provincial Pediatric Oncology Satellite Program
    • 6.5.2 Satellite Partners’ Role in Provincial Pediatric Oncology Satellite Program
  • 7.1 Preamble
  • 7.2 Investigator responsibilities
  • 7.3 Training Requirements
    • 7.3.1 General Training for Conduct of Research
    • 7.3.2 Protocol Specific Training
  • 7.4 Research Activites that may be completed in satellite centres under supervision of DSI
  • 7.5 Research Activities to be completed in Tertiary Centres Only
  • 7.6 Recognition and Reporting of Adverse Events (AEs)
  • 7.7 Data Transfer
  • 7.8 Pharmacy Drug Accountibility
  • 7.9 Site Inspections and Quality Assurance
  • 8.1 Pediatric Oncology Shared Care Initial Data Transfer Sheet
  • 8.2 Shuttle Sheet
  • 8.3 Psychosocial Communication Tool
  • 9.1 Satellite Readiness/ Preparedness Checklist
  • 9.2 Education Report for Tertiary Centres
  • 9.3 Education Report for Satellite Centres
  • 9.4 Vital Signs Report
  • 9.5 Self- Assessment
  • 9.6 Satellite Contact Form
  • 9.7 Annual Satellite Caseload Report
  • 9.8 POGO Provincial Satellite Program Annual Accounting Report
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