Willem Beekhuizen

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OBJECTIVE To describe the annual results in all 13 Dutch in vitro fertilisation (IVF) centres in the period 1996-2000, and to look for possible differences between individual centres and years. DESIGN Retrospective data collection, description and analysis. METHOD The results collected on the website of the Dutch Society of Obstetrics and Gynaecology(More)
Since 1977, routine cul-de-sac insufflation to achieve a pneumoperitoneum for laparoscopy was performed on 350 women under local anesthesia. A van Schie/van Lith intrauterine tenaculum, used together with a self-retaining Trelat speculum, guaranteed maximum stretching of the posterior vaginal fault and fixation of the anteflexed uterus necessary for an(More)
OBJECTIVE Previously, we have found that human culture-expanded fetal lung-derived mesenchymal stem cells (MSC) promote the engraftment of umbilical cord blood (UCB)-derived CD34((+)) cells. The high frequency of MSC in fetal lung allowed us to study whether this represented a biological feature of these cells or a property that was acquired during(More)
Suspected bowel adhesions are often considered a relative contraindication to laparoscopy. To attempt preoperative diagnoses of intraabdominal adhesions, miniculdoscopy was performed on ten patients with a miniendoscope. It was possible to establish the presence or absence of adhesions and to determine a safe abdominal trocar insertion site. The laparoscope(More)
Since 1977, cul-de-sac insufflation has been used to achieve pneumoperitoneum for laparoscopic sterilization of 570 women. The authors have previously published findings on 350 of these women (Int J Gynaecol Obstet 17(4):375, 1980), reporting technical failure rates of 3.6% and 1.9% for a series of 195 and 155 women, respectively. The failure rate for the(More)
The use of hysteroscopy has been restricted a.o. by the need for general anesthesia. This applies in particular to the pre- or post-partum period, because the hyperemic atonic uterus is easily over-inflated to a dangerous level. Over-inflation did not occur following 50 aspirotomy D & E procedures in the second trimester, using a para- and intracervical(More)
This 1978 study of postabortum insertion of multiload copper 250 (ML Cu 250) IUDs involved 382 of 2881 patients who requested 1st or 2nd trimester abortions. 221 were subjected to a 2 year follow-up. In patients 30 years old and younger expulsions occurred at 2 weeks, 4 weeks, and 6 months. The accidental pregnancy rate was 0.9%, the expulsion rate was(More)
BACKGROUND AND OBJECTIVES We previously found that human fetal lung is a rich source of mesenchymal stem cells (MSC). Here we characterize and analyze the frequency and function of MSC in other second-trimester fetal tissues. DESIGN AND METHODS Single cell suspensions of fetal bone marrow (BM), liver, lung, and spleen were made and analyzed by flow(More)
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