Ballooning of the levator hiatus

Abstract

Levator hiatal area as measured by 3D translabial pelvic floor ultrasound examination is strongly associated with symptoms and clinical signs of prolapse. Based on the ROC curves that we obtained, we suggest that a hiatal area of > 25 cm(2) on Valsalva be defined as abnormal distensibility or 'ballooning' of the levator hiatus.