Objective:

To explore the incidence and analyze the high risk factors of PIVH in premature infants in mainland China.

Materials and Methods:

A total of 1122 premature infants at <37 weeks gestation were enrolled in this study. All the infants received intracranial ultrasound examinations within 1 week after birth,and the perinatal data were recorded to analyze the high risk factors for PIVH.

Results:

The results showed that the incidence rate of PIVH was 55.2% in mainland Chinese population. Among these cases, mild degrees of PIVH accounted for 82.2% and severe degrees of PIVH accounted for only 17.8%. The most important risk factors related to PIVH were low gestational age, low birth weight, low Apgar score and ventilatory treatment, etc.

Conclusions:

It suggested that there were many high risk factors related to PIVH in premature infants and a screening cutoff point of 2000 g appeared to be more adequate for China.

Keywords: Periventricular-intraventricular hemorrhage, premature infant, risk factors, Chinese population