hyperbilirubinemia is a common problem during neonatal period especially in preterm neonates. transcutaneous bilirubin measurement (tcb) by special devices had been documented as an effective tool for predicting neonatal jaundice in full term neonate, but for preterm infants the present evidences are controversial. we carried out a prospective study in shariati hospital nicu. 126 paired tcb/tot...

to evaluate the changes of abr values in hyperbilirubinemic newborns, 85 cases with severe jaundice (total bilirubin levels over 16 mg/dl and direct bilirubin less than 2 mg/dl) were selected from those admitted to children's medical center by simple sampling method. these infants had no other problem except jaundice. abr was taken before treatment in all cases and in some (10 cases) after...

introduction: one of the most common pathologies in neonates is hyperbilirubinemia, which is a good marker for damage to the central nervous system. the sensitivity of the auditory system to bilirubin has been previously documented, with much discrepancy in its effects on auditory brainstem response results. thus the objective of this study was to evaluate the effects of hyperbilirubinemia on a...

background: transcutaneous bilirubinometry (tcb) is a simple method for estimating bilirubin levels in neonates. this method is noninvasive, quick, and painless. we aimed to compare serum and cutaneous bilirubin measurements in term neonates.method: in this descriptive cross-sectional study, 200 neonates with icter with birth weights of at least 2500 grams were studied. tcb was measured using a...

We report a fluorometric technique for determination of albumin-titratable bilirubin in the jaundiced neonate. Although bilirubin alone has very little native fluorescence, considerable emission is observed in the presence of albumin under acid conditions. Analysis of the plasma sample alone and in the presence of excess human serum albumin solution appears to reflect the bilirubin tightly boun...

Induction of hyperbilirubinemia in experimental rabbits by phenylhydrazine was optimized in terms of dose, dose interval and number of doses using response surface methodology. Central Composite Design was employed using five levels for each of the three input variables. Degree of hyperbilirubinemia was measured in terms of bilirubin level in serum of animals. A dose dependent significant eleva...

OBJECTIVE To characterize discrepancies between transcutaneous bilirubin (TcB) measurements and total serum bilirubin (TSB) levels among newborns receiving care at multiple nursery sites across the United States. METHODS Medical records were reviewed to obtain data on all TcB measurements collected during two 2-week periods on neonates admitted to participating newborn nurseries. Data on TSB ...

The accuracy of transcutaneous bilirubin meters has been assessed in newborns from various ethnic backgrounds. However, there are limited data on Greek newborns. Our study examined the accuracy of transcutaneous bilirubin measurements in clinically jaundiced healthy-term Greek newborns, using total serum bilirubin as the reference standard, in order to re-evaluate our local guidelines about neo...

kernicterus (bilirubin induced encephalopathy) is an uncommon disorder with tragic consequences, especially when it affects healthy term and near-term neonates. appointment of cut off value of total serum bilirubin level that have a safe margin for early prompt treatment, as a result, prevention of kernicterus. in our study, all of icteric neonates that admitted in our center in 1 year were enr...

OBJECTIVE To compare transcutaneous bilirubin with total serum bilirubin in preterm neonates after initiation of phototherapy. METHODS Jaundice was assessed in 30 preterm neonates with transcutaneous bilirubin and total serum bilirubin before initiation of phototherapy and at 12 hr after initiation of phototherapy. A photo-occlusive patch was applied over the sternum. RESULTS Transcutaneous...