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- Title
Early‐onset twin–twin transfusion syndrome: Case series and systematic review.
- Authors
Mylrea‐Foley, Bronacha; Shaw, Caroline J.; Harikumar, Nirupama; Legg, Sophie; Meher, Shireen; Lees, Christoph C.
- Abstract
Introduction: Data on the outcomes of early‐onset twin–twin transfusion syndrome (TTTS), diagnosed before 18 weeks gestational age (GA), are sparse. We aimed to review the diagnosis, management and outcomes of early‐onset TTTS. Material and methods: Pregnancy records at a single referral unit 2010‐6 were reviewed. In early‐onset TTTS cases, data for pregnancy characteristics, interventions and outcomes were collected. PubMed and Scopus databases were searched for studies including pregnant women with early‐onset TTTS. The primary outcome measure was livebirths. Results: Case series: 58 cases of early‐onset TTTS 2010‐6, with full outcome data in 44. Diagnostic criteria were variable. Median GA at intervention was 17+4 (range 15+0‐28+1); 67% of patients had laser therapy (39/58). Overall survival: 60% (53/88). At least one livebirth: 86% (38/44), Two livebirths: 34% (15/44); No survivors: 14% (6/44). GA at delivery was 32+1.5 (range 16+2‐37+4). Systematic review: 16 studies included (n = 171 pregnancies). Diagnostic criteria varied widely: 79% of studies used Quintero staging. Most offered laser (89%) at median 17+0 weeks (range 16+0‐21+6). GA at delivery was 23+0‐39+5 weeks. Overall survival: 69% (129/186). At least one livebirth: 74% (127/171). Two livebirths: 59% (55/93). No survivors: 26% (44/171). Conclusions: In comparison with the commonly accepted overall survival for TTTS treated after 18 weeks of 60–90%, outcomes in early‐onset TTTS were at the lower bound of this range. Gestational age at intervention is similar to that of later onset TTTS, indicating a lack of therapeutic options when a diagnosis is made before 18 weeks.
- Subjects
FETOFETAL transfusion; META-analysis; PREGNANT women; GESTATIONAL age; MULTIPLE pregnancy; SYNDROMES; PERINATAL care
- Publication
Australasian Journal of Ultrasound in Medicine, 2019, Vol 22, Issue 4, p286
- ISSN
1836-6864
- Publication type
Article
- DOI
10.1002/ajum.12176