Effect of phototherapy with turquoise vs. blue LED light of equal irradiance in XXXX .

@entity1 @entity4837 @entity648 @entity3917 @entity3638
BACKGROUND: Blue light with peak emission around 460   nm is the preferred treatment of neonatal @entity3638 . However, studies using fluorescent light tubes have suggested that turquoise light with peak emission at 490   nm may be more efficient. At present, the predominant light source for phototherapy is @entity3917 ( @entity3917 ). Hence, the aim of this study was to compare the @entity648 -reducing effect in @entity4837 treated either with turquoise or with blue LED light with peak emission at 497 or 459   nm, respectively, with equal irradiance on the @entity1 . METHODS: @entity1 with gestational age >= 33   wk and uncomplicated @entity3638 were randomized to either turquoise or blue LED light and were treated for 24   h. The mean irradiance footprint at skin level was 5.2   *   10(15) and 5.1   *   10(15) photons/cm(2)/s, respectively. RESULTS: Forty-six @entity1 received turquoise light and 45 received blue light. The median (95% confidence interval) decrease of total serum @entity648 was 35.3% (32.5; 37.3) and 33.1% (27.1; 36.8) for @entity1 treated with turquoise and blue lights, respectively. The difference was nonsignificant (P = 0.53). The decrease was positively correlated to postnatal age and negatively to birth weight. CONCLUSION: Using LED light of equal irradiance, turquoise and blue lights had equal @entity648 -reducing effect on @entity3638 of neonates.
