Objective Evaluate the sensitivity and reliability of visual evoked potential to flash (F-VEP) in detecting bilirubin neurotoxicity and approach the risk parameters of bilirubin neurotoxicity in hyper-bilirubinemia ne...Objective Evaluate the sensitivity and reliability of visual evoked potential to flash (F-VEP) in detecting bilirubin neurotoxicity and approach the risk parameters of bilirubin neurotoxicity in hyper-bilirubinemia newborns. Methods Based on the successful establishment of animal models for acute bilirubin encephalopathy by intraperitoneal infusion of bilirubin with a dosage of 100～200μg/g body weight to 1-week-old guinea pigs, the F-VEP was recorded in animal models and human neonates with hyperbilirubinemia, and the sensitivity and reliability of F-VEP in detecting bilirubin neurotoxicity were evaluated. Results F-VEP features and its P1 latency significantly correlated to brain adenosine triphosphate (ATP) level, neurobeha-vioral and neuropathological changes in experimental bilirubin encephalopathy; neonates with hyperbiliru-binemia showed significant F-VEP changes characterized by absence of P1 or P1 latency prolonged in 1～7-day-old newborns, especially when the jaundice was caused by immun oincompatibility and infectious diseases. Conclusion F-VEP would be a good discriminator for bilirubin neurotoxicity, and can become a promising technique in monitoring bilirubin encephalopathy.展开更多
文摘Objective Evaluate the sensitivity and reliability of visual evoked potential to flash (F-VEP) in detecting bilirubin neurotoxicity and approach the risk parameters of bilirubin neurotoxicity in hyper-bilirubinemia newborns. Methods Based on the successful establishment of animal models for acute bilirubin encephalopathy by intraperitoneal infusion of bilirubin with a dosage of 100～200μg/g body weight to 1-week-old guinea pigs, the F-VEP was recorded in animal models and human neonates with hyperbilirubinemia, and the sensitivity and reliability of F-VEP in detecting bilirubin neurotoxicity were evaluated. Results F-VEP features and its P1 latency significantly correlated to brain adenosine triphosphate (ATP) level, neurobeha-vioral and neuropathological changes in experimental bilirubin encephalopathy; neonates with hyperbiliru-binemia showed significant F-VEP changes characterized by absence of P1 or P1 latency prolonged in 1～7-day-old newborns, especially when the jaundice was caused by immun oincompatibility and infectious diseases. Conclusion F-VEP would be a good discriminator for bilirubin neurotoxicity, and can become a promising technique in monitoring bilirubin encephalopathy.
