Use of birth weight threshold for macrosomia to identify fetuses at risk of shoulder dystocia among Chinese populations.

Objective: To assess the incidence of macrosomia and the influence of birth weight on shoulder dystocia risk among a cohort of Chinese women.

Methods: A retrospective analysis was conducted of 80953 singleton deliveries recorded at the Prince of Wales Hospital, Hong Kong, between 1995 and 2009. The incidences of macrosomia (birth weight ≥ 4000 g) and shoulder dystocia were assessed by birth weight; risk factors for shoulder dystocia were examined by multiple logistic regression analysis.

Intrapleural injection of OK-432 as the primary in-utero treatment for fetal chylothorax.

Chylothorax is a rare congenital condition associated with significant perinatal mortality and morbidity. Previous treatments with repeated thoracocentesis or thoracoamniotic shunting were technically demanding, and associated with significant procedure-related complications and neonatal complications. Here we report the first successful case in Hong Kong treated by a simple and effective intervention, namely pleurodesis with OK-432, in a fetus presenting at 20 weeks of gestation with bilateral pleural effusion.

Determinants of hepatitis B vaccine uptake among pregnant Chinese women in Hong Kong.

Objective: To determine the prevalence of a history of hepatitis B vaccination among pregnant Chinese women in Hong Kong, and to identify factors associated with vaccine uptake at their own expense.

Methods: A prospective, cross-sectional survey was conducted in a university obstetric unit in Hong Kong. Pregnant Chinese women who attended the prenatal clinic were invited to complete a self-administered questionnaire, which requested details of their history of hepatitis B vaccination and sociodemographic characteristics.