Table 1 Classification of cardiotocographic patterns according to FIGO-Guidelines
Cardiotocographic classification | Baseline heart frequency | Variability Reactivity | Decelerations |
|---|---|---|---|
Normal | 110–150 beats/min | 5–25 beats/min Accelerations | Early decelerations Uncomplicated variable decelerations with a duration of < 60 sec and a beat loss of < 60 beats/min |
Intermediary* | 100–110 beats/min 150–170 beats/min Short bradycardia episode | > 25 beats/min without accelerations < 5 beats/min for > 40 min | Uncomplicated variable decelerations with a duration of < 60 sec and a beat loss of > 60 beats/min |
Abnormal | 150–170 beats/min and reduced variability >170 beats/min | < 5 beats/min for > 60 min Sinusoidal pattern | Repeated late decelerations Complicated variable decelerations with a duration of > 60 sec |
Preterminal | Total lack of variability and reactivity with or without decelerations or bradycardia | ||