Factors influencing irradiance of locally fabricated phototherapy devices in Jos, north-central Nigeria

Trop Doct. 2018 Apr;48(2):142-146. doi: 10.1177/0049475517740491. Epub 2017 Nov 19.

Abstract

Locally fabricated phototherapy devices (LFPDs) are widely used in Nigeria for the treatment of neonatal jaundice. Ours was a cross-sectional observational study of all LFPDs in major hospitals in Jos between January and March 2015. We evaluated a total of 24 LFPDs. The irradiance at the level of the baby was in the range of 2-23.9 µW/cm2/nm. Fourteen devices had the recommended irradiance of ≥10 µW/cm2/nm and none had irradiance in the intensive range. Decreasing distance from the baby, presence of reflectors and increasing number of flourecent tubes significantly contributed to higher irradiance. A combination of six tubes, presence of reflectors and a distance of 10 cm from the baby produced a mean irradiance of 23.40 µW/cm2/nm. The irradiance of LFPDs varies widely and can be improved by simple modifications.

Keywords: Neonatal jaundice; Nigeria; irradiance; locally fabricated phototherapy devices; phototherapy.

MeSH terms

  • Cross-Sectional Studies
  • Hospitals
  • Humans
  • Infant
  • Jaundice, Neonatal / therapy*
  • Nigeria
  • Phototherapy / instrumentation*
  • Radiation Dosage*
  • Radiometry*