Reduced/change in fetal movements
๐ถ Fetal movements are a reassuring sign of fetal well-being. Most women notice them from around 18โ20 weeks, with movements becoming stronger and more regular as pregnancy progresses. ๐จ A noticeable reduction or change in fetal movements may indicate potential fetal distress or complications, requiring prompt evaluation.
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What is Considered Normal?
- ๐คฐ Most women first feel movements between 18โ24 weeks (earlier in multiparous women).
- ๐ By the third trimester (after 28 weeks), movements become more regular and easier to track.
- ๐ Movements increase in frequency and strength until ~32 weeks, then plateau but should not reduce.
- ๐ฆถ Normal movements include kicks, rolls, swishes, and turns.
โ ๏ธ Causes of Reduced / Changed Movements
- ๐ค Fetal sleep cycles: Quiet phases lasting 20โ40 minutes (up to 90 minutes).
- ๐ฉธ Placental insufficiency: Reduced oxygen/nutrient delivery to the fetus.
- ๐ง Oligohydramnios: Low amniotic fluid restricting movement.
- โ Fetal hypoxia/distress: Decreased activity due to impaired oxygenation.
- ๐ฉ Maternal factors: Stress, dehydration, smoking, sedative drugs.
- ๐งฌ Fetal abnormalities: Congenital or chromosomal disorders may reduce activity.
๐ Assessment of Reduced Fetal Movements
- ๐ History: Ask about frequency, pattern, and quality of movements + associated symptoms (bleeding, pain).
- ๐ฉบ Examination: Assess maternal well-being, uterine size, and abdominal tenderness.
- ๐ Fetal heart rate monitoring: Doppler or CTG to detect abnormalities.
- ๐ฅ๏ธ Ultrasound: Assess growth, amniotic fluid, and placental function (consider Doppler studies).
๐ ๏ธ Management
- ๐คฑ Reassurance: If movements are normal after assessment, reassure and advise ongoing monitoring.
- ๐งช Further investigations: If concerns persist โ growth scans, Doppler, serial CTGs.
- ๐ถ Early delivery: Indicated if evidence of fetal distress or severe growth restriction.
- ๐ Maternal education: Teach "count to 10" method (expect 10 movements in 2 hours after 28 weeks). Emphasise seeking help if concerned.
๐จ Red Flags (Require Urgent Action)
- โฌ๏ธ Sudden or marked reduction in movements after 28 weeks.
- ๐ No movements felt for >12 hours in the third trimester.
- โก Movements that are weaker or markedly different in pattern.
- ๐ฉ Associated warning signs: vaginal bleeding, abdominal pain, fluid leakage.
๐ฉโโ๏ธ Key Considerations for Clinicians
- ๐ Always take maternal concerns seriouslyโdelayed action can lead to stillbirth.
- ๐ Follow NICE & RCOG guidelines on reduced fetal movements.
- ๐ค Involve multidisciplinary teams (obstetricians, midwives, fetal medicine if needed).
- ๐ Document history, examination, investigations, and advice thoroughly.