ST Case 7

Good signal quality

Summary

33 year old  G2 P1. Gest.week 39+5. Admitted in spontaneous onset of labour. SROM  at 10:00, clear liquor draining and has been contracting since then.

  • 11:12 VE: Cx fully effaced, dilated 4 cm, vx -1. FSE applied. Epidural sited. ST Analysis initiated.
  • 11:22 Poor signalquality noted, the FSE comes off.
  • 11:32 External FHR trace started.
  • 11:50 New FSE applied due to previous poor signal quality and  >4 minutes gaps without X:es.
  • 13:48 Maternal pyrexia 38,1 C.  IV AB and Panadol given.
  • 14:41 VE fully effaced, 8 cm dilated, vx at the spines.
  • 16:10 Because of the tachycardia and maternal temperature  with an Abnormal CTG trace the obstetrician  decided to perform ceaserean section.
  • 16:58 C/Section.  Baby girl born at 16:58. AS 10/10/10. 

Cord gases

pH pCO2 BE
Artery 7.32 3.3 -1.8
Vein 7.37 27 -1.4

 

Comment

No ST  events occured, T/QRS ratio was very stable and still normal variability. Physician on call decided to deliver with caesarean section because of tachycardia, maternal pyrexia and an Abnormal  CTG trace  > 60 min  and no ST change. Abnormal CTG pattern for more than 60 min with normal ST requires qualified assessment.

Please observe the X:es are coming very close because of a higher Baseline Heart Rate.  30 heartbeats gives 1 X, equals 6 X:es if the baseline is 180 bpm.

 

uploaded 2011-11-28 by Neoventa Medical