Journal List > Korean J Lab Med > v.26(5) > 1011345

Kim and Kim: Irradiated Blood Usage in a Tertiary-care Hospital

Abstract

Background

Irradiated blood is used to prevent transfusion-associated graft-versus host disease in high risk patients. The guidelines for usage of irradiated blood components vary from one country to other according to their needs. But in Korea, little information is available on the current usage of and the guidelines for irradiated blood. Therefore, we analyzed the usage of irradiated blood components in Hanyang University Medical Center.

Methods

Medical records were reviewed for 187 patients who had been transfused with irradiated blood products during the period from January 2004 to June 2005. And we investigated the proportion of irradiated blood products among the total number of blood products that were transfused during a one-year period.

Results

Hematologic diseases and solid cancer patients comprised 63.7% and 24.6% respectively. The proportion of irradiated blood products among the total blood components were 25.7% of platelet concentrates, 61.4% of apheresis platelets, and 5.1% of packed red cells. Total transfused amount by disease categories and the average transfused units per patient of irradiated blood components were high in a group of patients with several hematologic diseases such as acute leukemia.

Conclusions

The use of irradiated blood components takes a great proportion in total blood product transfusions and the majority of blood components were transfused to a group of patients with a few hematologic diseases. The proper use of blood should be guided by the promotion and education of a modified usage protocol for irradiated blood products and by a continuous data analysis.

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Fig. 1.
Percentage of irradiated platelet concentrate usage according to disease categories.
kjlm-26-369f1.tif
Table 1.
Disease categories of the patients transfused with irradiated blood components
Disease categories N. of patients (%)
Acute myeloid leukemia 21 (11.2)
Acute lymphocytic leukemia 13 (7.0)
Non-classified leukemia 1 (0.5)
Lymphoma 29 (15.5)
Aplastic anemia 22 (11.8)
Multiple myeloma 11 (5.9)
Idiopathic thrombocytopenic purpura 6 (3.2)
Myelodysplastic syndrome 5 (2.7)
Other hematologic disease 11 (5.9)
Solid cancer 46 (24.6)
Connective tissue disease 6 (3.2)
Others 19 (10.2)
Total patients 187 (100)
Table 2.
Percentage of irradiated blood components to the total blood components for year 2004
  N. of total blood units N. (%) of irradiated blood units
Platelet concentrates 23,544 6,038 (25.7%)
Platelet pheresis 1,174 721 (61.4%)
Packed red cells 18,980 975 (5.1%)
Table 3.
Total amount of irradiated blood components used according to disease categories and percentage per total irradiated blood use
Disease categories PC, unit (%) PP, unit (%) PRC, unit (%)
Acute myeloid leukemia 2,400 (29.6) 448 (42.1) 430 (28.3)
Acute lymphocytic leukemia 1,762 (21.8) 175 (16.5) 239 (15.8)
Aplastic anemia 1,258 (15.5) 208 (19.6) 238 (15.7)
Myelodysplastic syndrome 300 (3.7) 16 (1.5) 30 (2.0)
Multiple myeloma 340 (4.2) 42 (4.0) 64 (4.2)
Lymphoma 1,045 (12.9) 75 (7.1) 177 (11.7)
Solid cancer 369 (4.6) 13 (1.2) 197 (13.0)
Others 625 (7.7) 86 (8.1) 142 (9.4)
Total 8,099 (100) 1,063 (100) 1,517 (100)

Abbreviations: PC, platelet concentrate; PP, platelet pheresis; PRC, packed red cells.

Abbreviations: AML, acute myeloid leukemia; ALL, acute lymphocytic leukemia; AA, aplastic anemia; MM, multiple myeloma; MDS, myelodysplastic syndrome; solid ca, solid cancer.

Table 4.
Average units of irradiated blood components transfused per person according to disease categories during an 18-month period
Disease categories PC PP PRC
Acute myeloid leukemia 114.3 21.3 20.5
Acute lymphocytic leukemia 135.5 13.5 18.4
Aplastic anemia 57.2 9.5 10.8
Myelodysplastic syndrome 60 3.2 6.0
Multiple myeloma 30.9 3.8 5.8
Lymphoma 36.0 2.6 6.1
Solid cancer 8.0 0.3 4.3
Other 15.6 2.2 3.6

Abbreviations: See Table 2.

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