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Risk factors for neurodevelopment impairment in twin-twin transfusion syndrome treated with fetoscopic laser surgery



Risk factors for neurodevelopment impairment in twin-twin transfusion syndrome treated with fetoscopic laser surgery



Obstetrics and Gynecology 113(2 Pt 1): 361-366



To estimate the risk factors for adverse long-term neurodevelopment outcome in twin-twin transfusion syndrome treated with laser surgery. Twin-twin transfusion syndrome cases treated with laser surgery at three European centers from August 2000 to December 2005 were included in this case-control study. Neurological, mental, and psychomotor development (using the Bayley Scales of Infant Development, 2nd edition) was evaluated at 2 years of age. A total of 212 twin-twin transfusion syndrome pregnancies were treated with laser surgery during the study period. Overall mortality rate was 30% (129 of 424). Seventeen children (6%) were lost to follow-up. Long-term outcome was assessed in 278 infants. The incidence of neurodevelopment impairment was 18% (50 of 278). Four risk factors were found to be significantly associated with increased risk for neurodevelopment impairment: greater gestational age at laser surgery (odds ratio [OR] 1.30, 95% confidence interval [CI] 1.00-1.69; P=.05), higher Quintero stage (OR 3.55 for each increment in stage, 95% CI 1.07-11.82, P=.04), lower gestational age at birth (OR 1.39 for each week, 95% CI 1.06-1.81; P=.01), and lower birth weight (OR 1.18 for each 100-g decrease, 95% CI 1.05-1.32; P<.01). In a multivariable analysis, lower gestational age at birth was the only factor independently associated with neurodevelopmental impairment (OR 1.33 for each week, 95% CI 1.05-1.67, P=.02). Neurodevelopment impairment in twin- twin transfusion syndrome survivors treated with laser surgery is associated with advanced gestational age at laser surgery, low gestational age at birth, low birth weight, and high Quintero stage. II.

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Accession: 055582204

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PMID: 19155907

DOI: 10.1097/AOG.0b013e318195873e


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