Supplement to the NAC-CCNMT Irradiation Recommendations

Summary

2016 Canadian National Survey of Irradiation Practices in Neonatal Transfusion

Date of Original Release
Publication Date

Table of Contents

Survey Questions

1. Please provide us with some information on your hospital.

Note: Please answer the following questions for each hospital that you oversee. For example, if you are responsible for two hospitals, please complete this survey twice with responses specific to each institution.

1a. Name of institution.

1b. Level of care provided in your neonatal intensive care unit?

□ Level 1 □ Level 2 □ Level 3

Use the BC NICU Classification Tool classification scheme when determining your Level of Care.

1c. Which of the following types of transfusions are performed in your institution? (select all that apply)

□ Intrauterine transfusion

□ Neonatal exchange transfusion

□ Neonatal top-up transfusion

□ Emergency unmatched for neonatal resuscitation

2. Is there a policy requiring provision of irradiated cellular blood components for any of the following:

2a. Intrauterine transfusion?

□ Yes □ No □ Not performed at our hospital

2b. Top-up transfusion in neonates who (select all that apply)

□ Have received intrauterine transfusion:

□ Are less than 1200 grams at birth

□ Are less than 1500 grams at birth

□ All neonates (0-4 months) regardless of birth weight

□ Not performed at our hospital

2c. Exchange transfusion in neonates who (select all that apply)

□ Have received intrauterine transfusion:

□ Are less than 1200 grams at birth

□ Are less than 1500 grams at birth

□ All neonates (0-4 months) regardless of birth weight

□ Not performed at our hospital

3. Is irradiation of cellular components for neonates done on site at your hospital?

□ Yes □ No

3a. If not, is there a manipulation of the red cell component to reduce the levels of potassium?

□ Yes □ No

3b. If not, are there rules restricting: (select all that apply)

□ The age of the blood prior to irradiation □ The length of storage time post irradiation

4. To your knowledge, has there been a case of neonatal transfusion-associated graftversushost disease (TA-GVHD) at your hospital?

□ Yes □ No

5. To your knowledge, have there been complications related to hyperkalemia in neonates receiving irradiated red cells?

□ Yes □ No

5a. In the context of a top-up transfusion?

□ Yes □ No

5b. In the context of a large volume transfusion (e.g. cardiac surgery) or multiple top-up transfusions in succession?

□ Yes □ No

6. Prolonged storage of pre-irradiated red cells is associated with high potassium levels and invitro hemolysis. UK SHOT data report only a single case of TA-GVHD since the introduction of universal pre-storage leukocyte reduction in 1999. With this in mind

6a. Would you agree with abandonment of the irradiation requirement for top up transfusions in neonates, who:

Have received intrauterine transfusion □ Yes □ No

Are less than 1200 grams at birth □ Yes □ No

Are less than 1500 grams at birth □ Yes □ No

All neonates (0-4 months) regardless of birth weight □ Yes □ No

6b. Would you agree with abandonment of the irradiation requirement for neonatal exchange transfusion?

□ Yes □ No

7. Do you agree with the following statement:

For emergency transfusions of unmatched group O, D negative red cells for neonatal resuscitation due to obstetric complications and / or accidents, irradiated cellular components are NOT required?

□ Yes □ No

8. Do you agree with the following statement:

Although 22q11.2 deletion syndrome (encompasses DiGeorge Syndrome) is most commonly associated with conotruncal lesions, the variety of heart defects described in patients with this syndrome is extensive. In order to avoid missing a neonate or young infant with immunodeficiency, it is recommended that neonates and young infants with congenital heart defects receive irradiated cellular components up to 6 months of age, at which time those suspected of having 22q11.2 deletion syndrome should have been tested for this disorder.

□ Yes □ No

8a. Please indicate your comments, if any:

_____________________________________________________________________________ _____________________________________________________________________________

9. Do you think additional information is needed to improve strategies for preventing TAGVHD and the usage of irradiation?

□ Yes □ No

9a. If yes, please indicate your suggestions (randomized controlled trials, systematic reviews, consensus conference, etc.)

_____________________________________________________________________________ _____________________________________________________________________________

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