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[Photoprevention or phototherapy in newborn infants born prematurely?]
C Romagnoli1, U Muzii, L Maggio
1Divisione Neonatologica Università Cattolica del Sacro Cuore, Roma, Italia.
Insights
Phototherapy effectively reduces high bilirubin levels in premature infants. Photoprophylaxis is the most effective treatment for hyperbilirubinemia in low gestational age infants, showing better results than other phototherapy methods.
Area of Science:
- Neonatal care
- Pediatric phototherapy
Background:
- Hyperbilirubinemia is a common condition in newborns, particularly those with low gestational age.
- Elevated serum bilirubin levels can lead to neurotoxicity if not managed effectively.
- Various phototherapy methods are used to treat neonatal jaundice.
Purpose of the Study:
- To compare the efficacy of different phototherapy regimens in reducing serum bilirubin levels in preterm infants.
- To evaluate photoprophylaxis, daylight phototherapy, and combined daylight + blue light phototherapy.
- To determine the optimal phototherapeutic approach for preventing severe hyperbilirubinemia in vulnerable newborns.
Main Methods:
- A study involving 186 preterm infants (gestational age < 33 weeks, weight < 2500 g) was conducted.
- Infants were divided into a control group (n=60) and treatment groups: photoprophylaxis (n=31), daylight (n=54), and daylight + special blue light (n=41).
- Serum bilirubin levels, maximum attained levels, and exchange transfusion rates were monitored during the first week of life.
Main Results:
- All phototherapy methods demonstrated effectiveness in lowering potentially neurotoxic serum bilirubin concentrations.
- Daylight + special blue light therapy showed a significantly greater decrease in serum bilirubin compared to daylight therapy alone.
- Photoprophylaxis was highly effective, with only 3.2% of infants showing serum bilirubin levels above 15 mg/dl.
Conclusions:
- Phototherapy is a crucial intervention for managing hyperbilirubinemia in preterm infants.
- Photoprophylaxis appears to be the most effective strategy among the evaluated phototherapeutic schedules.
- Further research into optimized phototherapy protocols for low gestational age infants is warranted.
Abstract:
The authors studied the effects of different kinds of phototherapy in 186 newborns with a gestational age less than 33 weeks and weighing less than 2500 g. A control group of 60 infants was compared with a group of 31 infants submitted to photoprophylaxis, a group of 54 infants treated with day light, and a group of 41 infants treated with day light + special blue light. As far as the serum bilirubin variations in the first week, the maximum levels attained and the number of exchange transfusions are concerned, phototherapy always proved effective in reducing potentially neurotoxic serum bilirubin concentrations. Among the infants subjected to treatment, those treated with the day light showed a significant smaller decrease of serum bilirubin compared to those treated with the day light + special blue light, even if levels above 15 mg/dl were found in a similar percentage. Only 3.2% of the babies treated with photoprophylaxis showed serum bilirubin values above 15 mg/dl. The authors conclude that prophylaxis seems to be preferable to other phototherapeutic schedules used in the treatment of hyperbilirubinemia in low gestational age infants.