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Twin-Twin Transfusion Syndrome (TTTS)

Twin-Twin Transfusion Syndrome (TTTS)

Total evaluations for TTTS

  • 88 - 2019
  • 1005 - Total

Fetal surgical interventions to treat TTTS

  • 57 - 2019
  • 641 - Total

Fetal surgical intervention to treat TTTS in triplet pregnancies

  • 7 - 2019
  • 28 - Total

The following data reflects selective fetoscopic laser photocoagulation (SFLP) cases, including those with selective fetal growth restriction, performed from January 2015 – December 2019.

 Overall TTTS survival

  • 93% survival of at least one twin
  • 67% survival of both twins
  Total Cases
Two Survivors 135 (67%)
One Survivor 53 (26%)
No Survivors 15 (7%)

Survival per Quintero stage

Stage Two Survivors One Survivor No Survivors
I 23 (79%) 5 (17%) 1 (3%)
II 47 (80%) 7 (12%) 5 (8%)
III 57 (57%) 36 (36%) 7 (7%)
IV 8 (53%) 5 (33%) 2 (13%)

Survival by gestational age at procedure

Gestational age 2 survivors 1 survivor 0 survivors
16-18 weeks 38 (61%) 20 (32%) 4 (6%)
19-21 weeks 47 (66%) 15 (21%) 9 (13%)
22-24 weeks 40 (69%) 16 (28%) 2 (3%)
25-27 weeks 10 (83%) 2 (17%) 0 (0%)