Obstetrics Book



Face Presentation

Aka: Face Presentation
  1. See Also
    1. Fetal Malpresentation
    2. Fetal Presentation
    3. Fetal Lie
    4. Fetal Position
    5. Twin Gestation
    6. Occiput Posterior
    7. Breech Presentation
    8. Face Presentation
    9. Brow Presentation
    10. Shoulder Presentation (Transverse Lie)
  2. Definitions
    1. Face Presentation
      1. Head hyperextended, with face as presenting part
  3. Epidemiology
    1. Incidence: 0.1 to 0.2% of singleton deliveries (1 in 550 live births)
  4. Pathophysiology
    1. Normal Attitude: Fetus is in full flexion
      1. Smallest fetal head diameter: Suboccipitobregmatic
    2. Face Presentation is an extended attitude
      1. Full extension of fetal head with occiput against upper back
      2. Results in largest head diameter: Occipitomental
      3. Increases diameter 3 cm (24%) over flexed head
      4. May results in Failure to Progress
  5. Causes
    1. Grand Multiparous patients
    2. Large fetus and contracted Pelvis
    3. Neck swelling (e.g. Cystic Hygroma, Thyroid Goiter)
    4. Anencephaly
  6. Signs
    1. Digital cervical exam
      1. Facial features palpable (mouth, nose)
  7. Differential Diagnosis
    1. Breech Presentation (much more common than face)
  8. Management
    1. Do not attempt to convert Face Presentation to vertex
    2. Never apply vacuum extractor to Face Presentation
    3. Do not apply internal scalp electrodes
    4. Avoid Oxytocin in most cases
    5. Consider large episiotomy if fetus delivers vaginally
  9. Associated Conditions
    1. Anencephaly
  10. Complications
    1. Increased perinatal mortality: 2-3%

Face presentation (C0233269)

Definition (NCI) A fetal presentation during delivery in which the face of the fetus is first to descend into the birth canal.(NICHD)
Concepts Finding (T033)
SnomedCT 267327001, 199368006, 156159007, 21882006
English Face presentation NOS, face presentation of fetus (diagnosis), face presentation of fetus, face presentation, face presentation (physical finding), Face Presentation, Face presentation NOS (finding), Face presentation, Face presentation (finding), presentation; face
Italian Presentazione di faccia
Japanese 顔位, ガンイ
Czech Obličejová poloha
Hungarian Arctartás
Spanish presentación de cara, SAI (hallazgo), presentación de cara, SAI, presentación de cara (hallazgo), presentación de cara, Presentación de cara
Dutch ligging; aangezicht, aangezichtsligging
Portuguese Apresentação de face
French Présentation de la face
German Gesichtslage
Derived from the NIH UMLS (Unified Medical Language System)

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