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. 2000 May;82(3):F215-7.
doi: 10.1136/fn.82.3.f215.

Thyroid function in very low birthweight infants after intravenous administration of the iodinated contrast medium iopromide

J Dembinski  1 , V Arpe, M Kroll, G Hieronimi, P Bartmann
Affiliations

Thyroid function in very low birthweight infants after intravenous administration of the iodinated contrast medium iopromide

J Dembinski et al. Arch Dis Child Fetal Neonatal Ed. 2000 May.

Abstract

Background: Thyroid function disorders have often been observed in preterm infants after intravenous administration of iodinated contrast medium. The effect on thyroid function depends on the dosage, but the choice of the contrast medium may be equally important, as there are appreciable pharmacological differences between them.

Method: Thyroid function was analysed in 20 very low birthweight infants of gestational age less than 30 weeks after injection of iopromide, a monomeric non-ionic iodinated contrast medium. Levels of free thyroxine and thyroid stimulating hormone were compared with those in 26 control infants.

Results: Free thyroxine levels in all study infants ranged from 9.0 to 25.7 pmol/l (days 14-21) and 9.0 to 23.2 pmol/l (days 35-49), and thyroid stimulating hormone levels ranged from 0.13 to 0.26 mU/l (days 14-21) and 0.26 to 11.11 mU/l (days 35-49). These levels were not altered after injection of iopromide.

Conclusion: The risk of transient hypothyroidism or hyperthyrotropinaemia may be reduced with the use of iopromide compared with other contrast media.

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