Movva Vani C, Rijhsinghani Asha
Perinatal Care Division, Department of Obstetrics and Gynecology and College of Medicine, University of Iowa Hospitals and Clinics, Iowa City, IA, 52242-1080, USA.
Prenat Diagn. 2014 Aug;34(8):809-11. doi: 10.1002/pd.4371. Epub 2014 Apr 15.
Twin anemia polycythemia sequence (TAPS) is a form of twin-to-twin transfusion syndrome that occurs very rarely and may not be diagnosed until after delivery. The condition leads to increased risk of perinatal morbidity and mortality. We present two cases of monochorionic diamniotic twins, in which the diagnosis of TAPS was made after documenting a discrepancy in the echodensities of the two portions of the placenta. Postnatal hemoglobin differences between the twins confirmed the diagnosis of TAPS. On the basis of these two cases, it appears that the heterogeneity in placental echogenicity is a sign of TAPS and Doppler measurement of middle cerebral artery peak systolic velocity is helpful for early diagnosis and management with timely delivery.
双胎贫血-红细胞增多序列征（TAPS）是双胎输血综合征的一种形式，非常罕见，可能直到分娩后才被诊断出来。这种情况会导致围产期发病率和死亡率增加。我们报告了两例单绒毛膜双羊膜囊双胎病例，在记录到胎盘两部分回声密度存在差异后诊断为TAPS。双胎出生后血红蛋白差异证实了TAPS的诊断。基于这两例病例，胎盘回声异质性似乎是TAPS的一个征象，而大脑中动脉收缩期峰值流速的多普勒测量有助于早期诊断和通过适时分娩进行管理。
