Abstract
Background/Purpose Severe twin-to-twin transfusion syndrome (TTTS) leads to 80% to 100% dual mortality. Endoscopic laser coagulation of connecting vessels improves outcome to 80% survival of at least 1 twin. There is limited long-term follow-up of surviving TTTS patients. The aim of this study was to analyze gestational age-stratified, long-term morbidity in these patients. Methods A retrospective case-control study of TTTS surviving patients (38 patients, 72% follow-up rate) from one center. Perinatal and pediatric records were reviewed, and outcomes were compared with published reports and gestational age-matched controls. Results Forty percent (15/38) had at least 1 major sequela, all but 6 of which were fully resolved at a median follow-up of 4.4 years. There were no permanent cardiac, genitourinary, renal, or respiratory sequelae. All major complications were in patients born <29 weeks. There were no significant differences in complications between this cohort of patients and gestational age (GA)-matched control patients. Conclusions The long-term morbidity of monochorionic twins after fetal laser surgery for severe TTTS is 13%. At a median follow-up of more than 4 years, these children fare no worse than gestational age-matched, non-operated twins and singletons. The degree of prematurity at birth is the best predictor of temporary or permanent sequela in this group of patients.
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