Omar Josef Shebl

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This prospective study tested a new type of culture dish for the effects of individual culture and autotrophic factors. Within a 6-month period, 72 patients with nine or more fertilized eggs were enrolled in this prospective evaluation. Their 936 zygotes were split into three subgroups (individual culture, individual culture with contact to neighbours,(More)
OBJECTIVE Since little is known about the actual incidence and fate of vacuoles at different stages of development this preliminary study was set up to accurately measure vacuoles and track them to day 5. DESIGN Prospective study. SETTING Women's General Hospital in Austria. PATIENT(S) A total of 223 consecutive IVF and intracytoplasmic sperm(More)
Few cytoplasmic dysmorphisms of oocytes have been reported to negatively influence the further fate of the ova. One such anomaly, namely the central aggregation of the smooth endoplasmic reticulum (SER), has recently been associated with suboptimal outcome in a limited number of patients. In order to increase prognostic value, it was decided to(More)
Although some post-thaw morphological predictors of pregnancy have been investigated in slow freezing of blastocysts, no such data have been published for vitrified and warmed blastocysts. Therefore, a prospective four-part score was applied to vitrified/warmed day-5 embryos to evaluate whether certain morphological parameters could serve as predictors of(More)
OBJECTIVE To compare the outcome of singleton pregnancies originating from a twin gestation with singleton pregnancies originating from a single gestation. DESIGN Case-control study. SETTING Women's general hospital in Austria. PATIENT(S) A total of 794 singleton deliveries after IVF/intracytoplasmic sperm injection, including 46 survivors of(More)
BACKGROUND Serum anti-Müllerian hormone (AMH) levels provide a powerful means for predicting ovarian response, which is reflected not only by the size of the primordial follicle pool but also by the quality of the oocytes. Considering a mutual interdependence between AMH-expressing somatic cells and gametes, this prospective morphological study was set up(More)
The literature includes a wealth of medical data on endometriosis, but the economic significance of the condition has so far been neglected. An analysis of hospital costs for endometriosis in Austria was, therefore, carried out for economic purposes. Seventy-three patients with endometriosis were included in the study. A bottom-up approach was used to(More)
OBJECTIVE To evaluate whether the use of theophylline improves sperm motility and treatment outcome in frozen-thawed testicular sperm extraction (TESE). DESIGN Artificial sperm activation was offered to azoospermic patients between January and October 2010 in two different centers (identical lab conditions). SETTING IVF units of public hospitals. (More)
Dear Sir, We appreciate the interest shown in our recent publication in Human Reproduction regarding the delivery of normal healthy babies from embryos originating from oocytes with ‘smooth endoplasmic reticulum (SER) aggregates’ dysmorphism (Mateizel et al., 2013). We reported normal healthy babies after transfer of embryos originating from these(More)
Normally, day-2 embryos show a crosswise arrangement of four cells with three blastomeres lying side by side. Cleavage anomalies include embryos that are characterized by a particular planar constellation of four blastomeres with presumed incomplete cleavage. Since little is known on the developmental fate of such conceptuses, within a 10-month period all(More)