Journal of perinatal medicine · 2021
The contemporary value of dedicated preterm birth clinics for high-risk singleton pregnancies: 15-year outcomes from a leading maternal centre.
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Jin Wallace, Hughes Kelly, Sim Shirlene, Shemer Scott, Sheehan Penelope
Аннотация
OBJECTIVES: Preterm birth clinics provide dedicated obstetric care to women at high risk of spontaneous preterm birth (SPTB). There remains a lack of conclusive evidence to support the overall utility of such clinics, attributable to a paucity and heterogeneity of primary data. This study audits Australia's largest and oldest dedicated preterm birth clinic with the aim to add primary data to the area and offer opportunities for similar clinics to align practice.
METHODS: A retrospective audit of referrals to the Preterm Labour Clinic at the Royal Women's Hospital, Melbourne, Australia, between 2004 and 2018 was conducted. 1,405 singleton pregnancies met inclusion criteria. The clinic's key outcomes, demographics, predictive tests and interventions were analysed. The primary outcomes were SPTB before 37, 34 and 30 weeks' gestation.
RESULTS: The overall incidence of SPTB in the clinic was 21.2% (n=294). Linear regression showed reductions in the adjusted rates of overall SPTB and pre-viable SPTB (delivery <24 weeks) from 2004 (108%; 8%) to 2018 (65%; 2% respectively). Neonatal morbidity and post-delivery intensive care admission concurrently declined (p=0.02; 0.006 respectively). Rates of short cervix (cervical length <25 mm) increased over time (2018: 30.9%) with greater uptake of vaginal progesterone for treatment. Fetal fibronectin, mid-trimester short cervix, and serum alkaline phosphatase were associated with SPTB on logistic regression.
CONCLUSIONS: Dedicated preterm birth clinics can reduce rates of SPTB, particularly deliveries before 24 weeks' gestation, and improve short-term neonatal outcomes in pregnant women at risk of preterm birth.
METHODS: A retrospective audit of referrals to the Preterm Labour Clinic at the Royal Women's Hospital, Melbourne, Australia, between 2004 and 2018 was conducted. 1,405 singleton pregnancies met inclusion criteria. The clinic's key outcomes, demographics, predictive tests and interventions were analysed. The primary outcomes were SPTB before 37, 34 and 30 weeks' gestation.
RESULTS: The overall incidence of SPTB in the clinic was 21.2% (n=294). Linear regression showed reductions in the adjusted rates of overall SPTB and pre-viable SPTB (delivery <24 weeks) from 2004 (108%; 8%) to 2018 (65%; 2% respectively). Neonatal morbidity and post-delivery intensive care admission concurrently declined (p=0.02; 0.006 respectively). Rates of short cervix (cervical length <25 mm) increased over time (2018: 30.9%) with greater uptake of vaginal progesterone for treatment. Fetal fibronectin, mid-trimester short cervix, and serum alkaline phosphatase were associated with SPTB on logistic regression.
CONCLUSIONS: Dedicated preterm birth clinics can reduce rates of SPTB, particularly deliveries before 24 weeks' gestation, and improve short-term neonatal outcomes in pregnant women at risk of preterm birth.