Diagnosis of intra-ventricular hemorrhage in premature neonates with trans-cranial ultrasound
早产儿脑室内出血的超声诊断

Objective To discuss the mechanism and influencing factors of intra-ventricular hemorrhage （IVH） in premature neonates and to identify the diagnostic value of bedside trans-cranial ultrasound. Methods A total of 171 premature neonates were examined with bedside trans-eranial ultrasound and were classified as IVH by Papile grading method. The gestation age, birth weight and Apgar score were correlated with the incidence rate and the severity of IVH. Results The incidence of IVH in premature neonates was 61.4%. The total incidence rate of IVH （75%）and severe IVH（52.78% ）with gestation age ≤32 weeks were significantly higher than that with gestation age 〉 32 weeks （ P 〈 0.05 ）. The incidence of severe IVH was obviously high with birth weight ≤ 1500 g（ P 〈 0.05 ）. There was no significant difference between Apgar score and incidence of IVH. No significant difference between Apgar score and the severity of IVH was ob- served. But the incidence of IVH and severe IVH decreased along with an increase of Apgar score. The incidence of severe IVH was high with birth weight ≤1500 g and gestation age ≤32 weeks. Conelusion The incidence of IVH is higher in groups of subjects in premature neonates. The smaller gestation age and lower birth weight indicate the higher incidence rate of IVH . The bedside trans-cranial ultrasonic examinations in those premature neonates who are within 3 days after birth is necessary for early diagnosis and treatment.