TAPS is a form of TTTS but does not show typical symptoms of TTTS. The only way to diagnosed TAPS is through MCA (middle cerebral artery) dopplers in the brains of the babies. Starting by 16 weeks, MCA dopplers should be done weekly along with dopplers of the babies' umbilical cords. The results of the MCA dopplers can pick up TAPS which usually shows predictive signs. You must get weekly ultrasounds with monochorionic twins even when everything is perfect to look for the signs of TTTS and the signs of TAPS through MCA dopplers.
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