醫學六：80題 ( 包括麻醉科,眼科,耳鼻喉科,婦產科,復健科等科目及其及相關臨床實例與醫學倫理 )題庫下載題庫

 It is the combination of oligohydramnios and polyhydramnios in a MC twin pair seen by ultrasound that indicates the diagnosis of TTTS.

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WIKI 

A staging system is commonly used to classify the severity of TTTS.^[3]

Stage I: A small amount of amniotic fluid (oligohydramnios) is found around the donor twin and a large amount of amniotic fluid (polyhydramnios) is found around the recipient twin.

Stage II: In addition to the description above, the ultrasound is not able to identify the bladder in the donor twin.

Stage ...

 It is the combination of oligohydramnios and polyhydramnios in a MC twin pair seen by ultrasound that indicates the diagnosis of TTTS.

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WIKI 

Quintero Stages

A staging system is commonly used to classify the severity of TTTS.^[3]

Stage I: A small amount of amniotic fluid (oligohydramnios) is found around the donor twin and a large amount of amniotic fluid (polyhydramnios) is found around the recipient twin.

Stage II: In addition to the description above, the ultrasound is not able to identify the bladder in the donor twin.

Stage III: In addition to the characteristics of Stages I and II, there is abnormal blood flow in the umbilical cords of the twins.

Stage IV: In addition to all of the above findings, the recipient twin has swelling under the skin and appears to be experiencing heart failure (fetal hydrops).

Stage V: In addition to all of the above findings, one of the twins has died. This can happen to either twin. The risk to either the donor or the recipient is roughly equal & is quite high in Stage II or higher TTTS.