Transcript RCOG cardiotocographic (CTG) classification

RCOG cardiotocographic (CTG)
classification
• Normal
A CTG where all four features fall into the
reassuring category.
• Suspicious
A CTG whose features fall into one of the
non-reassuring categories and the
remainder of the features are reassuring.
RCOG cardiotocographic (CTG)
classification
• Pathological
A CTG whose features fall into two or
more non-reassuring categories or one or
more abnormal categories.
Features of CTG
Fetal Heart rate
feature
classification
Reassuring
Baseline
(bpm)
110 - 160
Variability
(bpm)
≥5
Decelerations
Accelerations
None
Present
Absence of
accelerations with
otherwise normal
CTG is of uncertain
significance
Non-reassuring
100 – 109
<5 for ≥40 but
<90 min
• early
•Variable
•Single
prolonged for up
to 3 minutes
<5 for >90
minututes
• atypical
• Late
• Single
prolonged for
>3 minutes
110 - 160
Abnormal
<100
>180
Sinusoidal
pattern for ≥10
minutes