Obstetrics 167 Mechanism of Labor Normal How does baby delivery fetus movement head newborn скачать в хорошем качестве

Obstetrics 167 Mechanism of Labor Normal How does baby delivery fetus movement head newborn

0:00 Definition - How a baby is naturally born OccipitoLateral Position LOA Available Diameter - Transverse 13, Right Oblique 12 AP diameter - SubOccipitobregmatic 9.5, SubOccipitoFrontal 10 Transverse diameter - BiPariteal 9.5 Asynclitism - deflection of head in relation to maternal pelvis 6:05 Engagement (Asynclitism before Engagament) Max diameter at pelvic brim - ENGAGEMENT 9:05 Descent - 10:20 Flexion - Becomes SuboccipitoBregmatic 9.5cm 12:10 Internal Rotation - from LOA to OA 1/8, from LOT to OA 2/8 (Episiotomy just before crowning... at height of contraction) 15:25 Crowning - Max dia of Head stretches Vulval outlet and does not recess when contraction over 16:40 Delivery of Head by Extension -Delivery of Vertex, Brow, Face, Chin. Head will drop, Chin in close proximity to maternal anus 19:25 Restitution - correct the internal rotation, visible passive movt 20:55 External Rotation - shoulder rotates to PS, head can be seen, Shoulders lie AP (mnemonic for these 4 steps CERE) 22:05 Delivery of Shoulder and Trunk Anterior Shoulder escapes under PS then LATERAL FLEXION Posterior Shoulder sweeps over Perineum Trunk expelled