Abstract

Abstract: Background- Neonatal jaundice is commonly seen in preterm new born and
phototherapy treatment of choice when indicate. Phototherapy is an efficient treatment
although there is some side effect present. These side effect may be on behavioural and
physiological in some organ and there is also changes in stages of sleep cycle and
circadian rhythm during and after phototherapy for few days. These changes in sleep cycle
due to the neurotransmitter tryptophan and there is also changes is hormones like
decreased in the growth hormones and there is changes in the melatonin which may affect
with sleep cycle. there is some study done which suggestive that phototherapy will affect the
stages of sleep but there is solid information available whether there is any effect of
phototherapy on cardiorespiratory activity. Some old study is suggestive of there is
increased in heart rate and decreased in the SBP systolic blood pressure during
phototherapy. Phototherapy cause to increase the respiratory rate and heart rate during
phototherapy. Objectives: To determine the outcome of phototherapy after 24hrs, 48hrs,
72hrs, and >72hrs on cardiac function in term neonates with hyperbilirubinemia. Results-
After completion of the study we will come to know the effect of phototherapy on cardiac
function and also get the idea for how many hours ( <24hrs / 48hrs. 72hrs or > 72hrs) we
can give safe phototherapy to the neonate with hyperbilirubinemia without affecting the
cardiac function. Or is there any need for cardiac shielding during phototherapy.
Conclusion- After completion of the study we will come to know the effect of phototherapy
on cardiac function in term neonate who is having neonatal hyperbilirubinemia.