If a woman has a first-trimester diagnosis of a cesarean scar implantation pregnancy and embryonic cardiac activity is present, expectant management offers the possibility of delivering a live-born neonate (62.5% in our study) but carries a substantial likelihood of hysterectomy at delivery due to placenta accreta (37.5% in our study), whereas minimally invasive therapy that interrupts the pregnancy largely eliminates the need for hysterectomy.
With expectant management of stage I TTTS, nearly three-fourths of pregnancies remain stable and most have survival of ≥ 1 twin. A-A anastomoses were not associated with progression to higher stage TTTS, whereas earlier GA at diagnosis or a small or intermittently visible donor bladder may herald greater risk of progression.
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