Radiation effect on the number of circulating blood cells in patients receiving pelvic radiotherapy

Jafar emami; M Mohammadzadeh; F Arbabi

Zahedan Journal of Research in Medical Sciences

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Radiation effect on the number of circulating blood cells in patients receiving pelvic radiotherapy

Author(s):

Jafar emami^1,*,

M Mohammadzadeh¹,

F Arbabi²

1Radiotherapy Dept, Faculty of Medicine, Isfahan University of Medical Sciences and health services, Isfahan, Iran.

2Radiotherapy Dept, Faculty of Medicine, Zahedan University of Medical Sciences and health services, Zahedan, Iran.

Zahedan Journal of Research in Medical Sciences:Vol. 7, issue 1; e94969

Published online:Mar 22, 2005

Article type:Research Article

Received:Feb 21, 2005

Accepted:Mar 04, 2005

How to Cite:Jafar emamiM MohammadzadehF ArbabiRadiation effect on the number of circulating blood cells in patients receiving pelvic radiotherapy.Zahedan J Res Med Sci.7(1):e94969.

Abstract

Background: There is considerable controversy in scientific literature regarding the need to
monitor the complete blood count of patients undergoing radiation therapy. While some advocate
weekly examination of the peripheral blood, others deem it unnecessary. Since reduction in the
number of blood cells has considerable effect on the treatment outcome, this study evaluates the
effect of pelvic radiation therapy on the number of blood cells.
Methods and Materials: This study designed as a cohort study of pre- and post-treatment
evaluation. After excluding patients who didn’t complete treatment or had problem in first blood
count, 51 patients who had received radiation therapy in pelvis area selected, evaluated by taking a
blood sample before and 24-48 hours after completion of the radiation course, thus comparing the
mean count of the circulating blood cells before and after therapy. The average of hemoglobin and
white blood cell count compared by t-test and after stratified patients according to dose and volume
to “low”, “moderate” and “high” groups, averages compared by ANOVA.
Results: Fifty-one patients included 25 male and 26 female evaluated. The mean of white blood
cells, red blood cells and platelets decreased. However, a significant difference in white and red
blood cells was found.
Conclusions: In despite of significance difference between means of red and white blood cells,
there is no need for blood transfusion or increase risk of infection due to this reduction, so this
reduction isn’t clinically significant. It is recommended that weekly monitoring of CBC in patients
with normal CBC before radiotherapy is non necessary.