Twin to twin transfusion syndrome
MONDO:0019805Twin twin transfusion syndrome (TTTS) is a rare condition seen in twin monochorionic pregnancies, typically developing during the 15-26 week gestation period and usually due to unbalanced intertwin placental anastomoses, where an unequal exchange of blood between twins causes oligohydramnios in one sac and polyhydramnios in the other which can lead to a high perinatal mortality rate and a high rate of disability in survivors if left untreated
Also known as: Feto-fetal transfusion syndrome, Twin Anemia Polycythemia Sequence, Twin-Twin transfusion syndrome, foetal blood loss from foetal haemorrhage into co-twin, foetal haemorrhage into co-twin, placental transfusion syndrome, stuck Twin syndrome, twin-to-twin transfusion syndrome
23 clinical trials for this condition and its sub-types, 14 tagged with Twin to twin transfusion syndrome itself.
Follow this condition to get notified about new trialsWhere it sits in the disease tree
Browse by category →Sub-types of Twin to twin transfusion syndrome
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Zapping pain without drugs: brain stimulation put to the test for nerve pain
Symptom relief Not yet recruitingThis trial tests whether a non-invasive brain stimulation technique called temporal interference stimulation (tTIS) can reduce neuropathic pain—pain caused by nerve damage. Researchers will monitor changes in pain levels and brain plasticity in 60 adults with peripheral neuropath…
Sponsor: Second Affiliated Hospital, School of Medicine, Zhejiang University • Aim: Symptom relief
Last updated Aug 01, 2026 00:00 UTC
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New ultrasound aims to spot twin pregnancy complications before they start
Knowledge-focused Not yet recruitingThis study will test a new, high-speed ultrasound device on 10 healthy women pregnant with identical twins who share a placenta. The goal is to see if the device can take detailed pictures of the tiny blood vessels in the placenta. This information could help doctors better under…
Sponsor: Carilion Clinic • Aim: Knowledge-focused
Last updated Jun 27, 2026 14:03 UTC