Vasa previa (mechanism of disease) скачать в хорошем качестве

Vasa previa (mechanism of disease)

This is a short flowchart on vasa previa, covering the etiology, pathophysiology, and manifestations. ADDITIONAL TAGS: In vitro fertilization Risk factors / SDOH Cell / tissue damage Structural factors Vasa previa Medicine / iatrogenic Infectious / microbial Biochem / metabolic Immunology / inflammation Signs / symptoms Tests / imaging / labs Environmental / drugs Reproductive pathology Flow physiology Pathophysiology Etiology Manifestations Vasa previa: fetal vessels are unprotected in the membranes near the internal os of the cervix Velamentous cord insertion: abnormal insertion of umbilical cord into chorioamniotic membranes where vessels travel without protective Wharton jelly Multi-lobed placenta: accessory lobe(s) separate from main placental body; vessels connecting lobes are exposed, supported only by membranes By Sigrid de Rooij - www.vasaprevia.nl, CC BY-SA 4.0, https://commons.wikimedia.org/w/index... Advanced maternal age Multiparity Low-lying placenta Placenta previa Sudden painless vaginal bleeding Fetal distress (bradycardia; decelerations or sinusoidal pattern on fetal heart tracings) Rupture of membranes Fetal vessels compressed during labor Asphyxiation Exsanguination Fetal death Transabdominal or transvaginal ultrasound: fetal vessels overlying the internal os color Doppler: ↓ blood flow within fetal vessels Management: Emergency cesarean delivery if there are signs of fetal distress Fetal blood Pale newborn Risk factors: