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Exposure of extremely low birth weight infants to diagnostic X-Rays: a longitudinal study

Ilan Arad1, Natalia Simanovsky, Rony Braunstein

  • 1Department of Neonatology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel. arad@hadassah.org.il

Acta Paediatrica (Oslo, Norway : 1992)
|November 22, 2008
PubMed

Insights

Imaging use in extremely low birth weight infants remained stable over two decades, with a slight decrease in chest X-rays in later years. Further radiation reduction measures are recommended, particularly for infants with complex conditions.

Area of Science:

  • Neonatal imaging
  • Pediatric radiology
  • Extremely low birth weight infant care

Background:

  • Chest and abdominal radiograms are frequently used in the management of extremely low birth weight (ELBW) infants.
  • Understanding trends in imaging application is crucial for optimizing care and minimizing radiation exposure.

Purpose of the Study:

  • To quantify the utilization of chest and abdominal radiograms in surviving singleton ELBW infants.
  • To investigate changes in imaging application over a 21-year period (1987-2007).

Main Methods:

  • Retrospective analysis of clinical and radiological data from 225 surviving ELBW infants.
  • Evaluation of associations between imaging frequency, time period, and clinical variables.

Main Results:

  • The mean number of chest X-rays per infant was 10.3 and abdominal radiograms was 5.6.
  • No significant change in the overall trend of radiogram use was observed between 1987-1996 and 1997-2007.
  • A statistically significant negative correlation was found between gestational age and the number of radiograms performed.
  • After controlling for gestational age, a reduction in chest radiograms was noted in the later period (1997-2007).
  • Infants with a complicated clinical course received significantly more radiograms.

Conclusions:

  • While overall imaging trends remained stable, a decrease in chest radiogram exposure was observed in ELBW infants during 1997-2007 compared to 1987-1996, after adjusting for gestational age.
  • Recommendations are made to implement measures for radiation dose reduction, especially for infants with complex clinical conditions.
Abstract

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