MILESTONE

twin lotus flower bud collecting in lotus garden

MILESTONE


What is this project about?

Multiple pregnancy: An investigation of the risk factors and outcomes in the Republic of Ireland (The MILESTONE study)

Twins accounted for 1.8% of all births in Ireland in 2019 and the twinning rate was 17.8 per 1,000 maternities. There has been no significant change in the rate of multiple pregnancies in Ireland since 2012. Twin pregnancies are associated with an increased risk of maternal complications such as hypertensive disorders, and they contribute to an increased risk of perinatal morbidity and mortality, thereby causing significant resource implications for both healthcare providers and maternity services. Given the increased risk associated with twin pregnancies there is a need for evidenced-based and up-to-date recommendations for clinical care 

The Milestone study is a doctoral research project funded by the Irish Research Council (IRC). The overall aim of this PhD is to identify the risk factors and outcomes for those who experience twin pregnancies in the Republic of Ireland, to evaluate clinical practice guidelines, and to identify the specific service needs of this group, to inform future developments and help improve the quality of care within the maternity services.

What is involved?

  • Systematic review of clinical practice guidelines for the antenatal management of dichorionic diamniotic (DCDA) twin pregnancy
  • Secondary analysis of perinatal mortality within the twin population in the Republic of Ireland and identification of the associated maternal and care-related risk factors  
  • Secondary analysis of the neonatal outcomes of very low birth weight twin pregnancies in the Republic of Ireland
  • Qualitative study examining the experiences of women with dichorionic diamniotic twin pregnancies in Irish maternity services to inform future developments and help improve the quality of care within the maternity services
  • A national service evaluation of the provision of antenatal care to dichorionic diamniotic twin pregnancies and establish if the care provided is in line with national and international recommendations
  • Development of a dichorionic diamniotic clinical practice guideline.

Who is involved?

Project team

Name Affiliation Role
Caroline O'Connor Pregnancy Loss Research Group  PhD Student
Professor Keelin O'Donoghue Pregnancy Loss Research Group  Primary Supervisor
Dr Sara Leitao National Perinatal Epidemiology Centre, UCC; Pregnancy Loss Research Group Secondary Co-supervisor

Collaborators

Name Affiliation
Dr Ann Twomey  
Dr Paul Corcoran National Perinatal Epidemiology Centre, UCC
Dr Emily O'Connor Pregnancy Loss Research Group

Dissemination activities

Journal articles

  • O'Connor C, Leitao S, O'Donoghue K. A protocol for a systematic review of clinical practice guidelines for the antenatal management of dichorionic diamniotic twin pregnancy [version 1; peer review: 1 approved]. HRB Open Research. 2021;4:115. https://doi.org/10.12688/hrbopenres.13418.1.   
  • O’Connor C, O’Connor E, Leitao S, Barrett S, O'Donoghue K. Clinical practice guidelines for the antenatal management of dichorionic diamniotic twin pregnancies: a systematic review. BMC Pregnancy and Childbirth. 2023;23:347. https://doi.org/10.1186/s12884-023-05652-z

News items

Project status

Ongoing: January 2021 to December 2024

Further information

Please email Caroline O’Connor: carolineoconnor@ucc.ie  

Funders

MILESTONE is funded by the Irish Research Council: Government of Ireland Postgraduate Award [GOIPG/2020/928].

Pregnancy Loss Research Group

Pregnancy Loss Research Group, Department of Obstetrics & Gynaecology, University College Cork, Fifth Floor, Cork University Maternity Hospital, Wilton, Cork, T12 YE02, Ireland,

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