Publications by authors named "H Betjes"
Study Question: For couples with unexplained subfertility and a poor prognosis for natural conception, is 6 months expectant management (EM) inferior to IUI with ovarian stimulation (IUI-OS), in terms of live births?
Summary Answer: In couples with unexplained subfertility and a poor prognosis for natural conception, 6 months of EM is inferior compared to IUI-OS in terms of live births.
What Is Known Already: Couples with unexplained subfertility and a poor prognosis are often treated with IUI-OS. In couples with unexplained subfertility and a relatively good prognosis for natural conception (>30% in 12 months), IUI-OS does not increase the live birth rate as compared to 6 months of EM.
Background: To evaluate the interobserver agreement and discriminating value of three-dimensional power Doppler ultrasound (3D PDUS) in patients with fibroids.
Methods: An observational prospective cohort study in 19 patients with fibroids. 3D PDUS was performed by one examiner and evaluated by three independent examiners in order to evaluate various vascular parameters: vascular index (VI), flow index, and vascular flow index of the fibroid, the vascular capsule and of its highest vascular area, using both manual and automatic contour modes.
Objective: To determine whether surgical volume influences efficiency of hysteroscopic myomectomy as a treatment for uterine fibroids.
Study Design: This retrospective cross-sectional study performed at a university teaching hospital included all patients who underwent hysteroscopic myomectomy between 2001 and 2005 by a faculty surgeon. We used 3 outcomes as measures of efficiency: amount of tissue resected per case, operating department time per case and amount of tissue resected per minute.