Birth weight

Classifications

Large for gestational age: Weight is above the 90th percentile at gestational age
Macrosomia: Weight is above a defined limit at any gestational age
Appropriate for gestational age: Normal birth weight
Small for gestational age: Weight is below the 10th percentile at gestational age
Low birth weight: Weight is below a defined limit at any gestational age

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Bishop’s Score

Components
The total score is achieved by assessing the following five components on vaginal examination:

Cervical dilatation
Cervical effacement
Cervical consistency
Cervical position
Fetal station

They can be remembered with the mnemonic: Call PEDS For Parturition = Cervical Postion, Effacement, Dilation, Softness; Fetal Station.

 Scoring
Each components is given a score of 0-2 or 0-3. The highest possible score is 13.

Parameter\Score
0
1
2
3

Position
Posterior
Intermediate
Anterior
-

Consistency
Firm
Intermediate
Soft
-

Effacement
0-30%
40-50%
60-70%
80%

Dilation
<1 cm
1-2 cm
2-4 cm
>4 [...]

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TTTS

Twin-to-twin transfusion syndrome (TTTS) is the result of an intrauterine blood transfusion from one twin (donor) to another twin (recipient). TTTS only occurs in monozygotic (identical) twins with a monochorionic placenta. The donor twin is often smaller with a birth weight 20% less than the recipient’s birth weight. The donor twin is often anemic and the [...]

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Post Dates…

Intro:
Postterm pregnancies define pregnancies extending up to or after 42 weeks. The reported frequency is approximately 3-12%. The most frequent cause of postterm pregnancy is inaccurate dating criteria. Additional risk factors include primiparity, prior postterm pregnancy, male gender of the fetus, and genetic factors. Laursen et al studied monozygotic and dizygotic twins and their subsequent [...]

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