Determination of Chorionicity in Twins: Feasibility at a Tertiary Care Centre and Audit of Current Practice in the Community

Abstract

To assess the feasibility and to audit the practice of determining chorionicity in twin pregnancies in South India. Sonographic findings from first trimester scans of twin pregnancies were retrospectively analysed to evaluate the feasibility of determining chorionicity in the first visit to the unit. In addition, an audit was carried out on all twin pregnancies referred to the authors in the second trimester to ascertain whether chorionicity had been established prior to referral. It was feasible to determine chorionicity at the first visit in 100 % of the 611 twin pregnancies that were seen at 11–14 weeks in the unit. However, the audit revealed that only 40 % of the referred population had a diagnosis of chorionicity prior to referral. Whilst it is feasible to determine chorionicity in all twin pregnancies in the first trimester, the practice is not widespread in the referring community in South India and this needs to be addressed.

Keywords

Multiple pregnancy - Twins - Chorionicity - Monochorionic - Dichorionic - First trimester

Publication History

Received: 30 April 2014

Accepted: 21 May 2014

Article published online:
08 May 2023