Key result
A chest circumference to head circumference ratio >0.97 predicted shoulder dystocia and birth complications in low-risk pregnancies (AUC 0.903, sensitivity 77.84%, specificity 89.73%).
Why the study?
The study evaluated whether anthropometric measurements of newborns could provide antenatal prediction of brachial plexus palsy, clavicle fracture, and shoulder/humerus fracture in cases at low risk for shoulder dystocia.
Case-Control (n=370)
Neonatal anthropometric measurements, specifically a chest-to-head circumference ratio >0.97, can help predict birth trauma complications in pregnancies without traditional risk factors.
May support anthropometric screening for shoulder dystocia risk; hypothesis-generating and requires prospective validation before practice change.
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Kiyak et al. (2019) conducted a case-control in Birth trauma (brachial plexus palsy, clavicle fracture) in low-risk pregnancies (n=370). Chest circumference to head circumference ratio > 0.97 vs. Ratio ≤ 0.97 was evaluated on Prediction of shoulder dystocia and birth complications (AUC 0.903). A chest circumference to head circumference ratio >0.97 predicted shoulder dystocia and birth complications in low-risk pregnancies (AUC 0.903, sensitivity 77.84%, specificity 89.73%).
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