What Bishop score predicts successful induction?

Bishop score ≥8 is favorable (successful induction rate comparable to spontaneous onset). Score ≤6 is unfavorable and benefits from cervical ripening (prostaglandins, balloon catheter, misoprostol) before oxytocin.

What are the 5 components of the Bishop score?

Cervical dilation (0-3 cm = 0, 4-6 = 2, 7+ = 3), effacement (0-30% = 0, 80-100% = 3), station (-3 = 0, +1/+2 = 3), consistency (firm = 0, soft = 2), position (posterior = 0, anterior = 2). Maximum score 13.

Is Bishop score the best predictor of IOL success?

Bishop score has modest predictive value (AUC ~0.6-0.7). Cervical length by ultrasound and cervical dilation are stronger individual predictors. Combining cervical length + fFN + Bishop score improves accuracy.

Bishop Score for Cervical Ripening and IOL Readiness

Calculate Bishop score to assess cervical ripeness before labor induction. Scores dilation, effacement, station, consistency, and position. Score ≥8 predicts successful induction comparable to spontaneous labor onset.

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