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Jette Stær-Jensen, MD
Pelvic organ support changes during pregnancy. During Valsalva maneuver an increase of the levator hiatus area of up to 21.4% is seen. The video demonstrates the same primiparous woman at 21weeks of gestation and again at 37 weeks of gestation performing Valsalava maneuver. Video courtesy of Jette Stær-Jensen, MD. See the related article by Stær-Jensen et al.