Early-Onset Fetal Growth Restriction Monitoring at 28 Weeks’ Gestation
Early-onset fetal growth restriction should be managed with a structured fetal surveillance protocol using umbilical artery Doppler plus ductus venosus (DV) and computerized cardiotocography (cCTG) when available. [1]
Setting and Baseline Assessment
Management should occur in a tertiary-level fetal care setting. [1]
After early FGR is suspected or diagnosed, baseline surveillance elements should include measurement of umbilical artery pulsatility index (PI), DV Doppler, and a 1-hour recording of cCTG. [1]
Maternal monitoring for pre-eclampsia should be performed during surveillance. [1]
Ongoing Surveillance Interval at 28 Weeks’ Gestation
When delivery criteria are not met, repeat surveillance should occur at least every 2 days in the TRUFFLE-based early FGR protocol. [1]
Umbilical artery Doppler interval should be intensified in proportion to worsening UA Doppler status, with limited evidence supporting more frequent assessment when severe UA Doppler abnormalities are present. [1]
Fetal Functional Testing Components
cCTG should be used with short-term variation (STV) as the key parameter when available. [1]
DV Doppler should be reassessed repeatedly during surveillance because DV abnormalities represent late biophysical decompensation in early FGR. [1]
If cCTG is not available or not used, delivery timing decisions should rely on a combination of Doppler indices (mainly DV before 30 weeks) and conventional CTG and/or biophysical profile where performed. [1]
Monitoring Triggers Relevant to 28 Weeks’ Gestation
For 26+0 to 28+6 weeks, delivery criteria in the TRUFFLE-based protocol include DV a-wave at or below baseline or cCTG STV below 2.6 ms. [1]
For 26+0 to 28+6 weeks, delivery criteria also include spontaneous repeated persistent unprovoked fetal heart rate decelerations and an altered biophysical profile (score ≤ 4). [1]
For 26+0 to 28+6 weeks, surveillance should continue on the protocol schedule until delivery criteria are met or maternal/obstetric indications arise. [1]
Corticosteroid Prophylaxis Planning
Planned delivery before 34+0 weeks should prompt corticosteroid prophylaxis as part of the delivery pathway. [1]
Maternal indications and obstetric emergencies should override protocol timing and require delivery when indicated. [1]
Common Pitfalls to Avoid
Reliance on a single Doppler parameter without protocolized functional testing (cCTG and DV when available) should be avoided because protocol efficacy depends on combined DV Doppler and cCTG safety-net criteria. [1]
Delayed escalation of surveillance frequency despite non-reassuring trend progression should be avoided because the protocol specifies repeat surveillance at least every 2 days when delivery criteria are not met. [1]
Target Goals of Surveillance
Surveillance should aim to detect DV and cCTG deterioration that meets delivery criteria for 26+0 to 28+6 weeks before overt clinical decompensation. [1]
Maternal monitoring for pre-eclampsia should be integrated because maternal deterioration is an independent trigger for delivery. [1]