A pilot integrated model nurse clinic increases the uptake of antiviral treatment for the prevention of mother‐to‐child transmission of HBV

Background and Aims Mother‐to‐child‐transmission (MTCT) of hepatitis B virus (HBV) may still occur despite birth‐dose HBV vaccinations when pregnant women are positive for hepatitis B surface antigen (HBsAg) with high viral loads (HBV DNA ≥ 200 000 IU/mL). A pilot integrated model nurse clinic (IMNC) was started in 2020 to implement the pre‐emptive antiviral therapy with tenofovir disoproxil fumarate (TDF). We aimed to evaluate the performance of IMNC on uptake of TDF. Methods This was a territory‐wide retrospective cohort of all consecutive HBsAg‐positive women of child‐bearing age with pregnancy records in public hospitals 2019–2022. Demographic characteristics, liver biochemistries and virologic parameters, and TDF use were collected. Concurrently, data from a prospective audit in Union Hospital, the private hospital with the highest number of deliveries in Hong Kong, from June 2022 to May 2023 were compared. Results The prevalence rate of HBV DNA ≥ 200 000 IU/mL in pregnant women with available HBV DNA records was 29.2% (66/226) in 2019, 27.3% (99/363) in 2020, 15.9% (125/784) in 2021 and 17.2% (117/679) in 2022 (p