Stephan Gordts
Katholieke Universiteit Leuven
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Featured researches published by Stephan Gordts.
Human Reproduction | 2013
Grigoris Grimbizis; Stephan Gordts; Attilio Di Spiezio Sardo; Sara Y. Brucker; Marco Gergolet; Tin-Chiu Li; Vasilios Tanos; Hans Brölmann; Luca Gianaroli; Rudi Campo
STUDY QUESTION What classification system is more suitable for the accurate, clear, simple and related to the clinical management categorization of female genital anomalies? SUMMARY ANSWER The new ESHRE/ESGE classification system of female genital anomalies is presented. WHAT IS KNOWN ALREADY Congenital malformations of the female genital tract are common miscellaneous deviations from normal anatomy with health and reproductive consequences. Until now, three systems have been proposed for their categorization but all of them are associated with serious limitations. STUDY DESIGN, SIZE AND DURATION The European Society of Human Reproduction and Embryology (ESHRE) and the European Society for Gynaecological Endoscopy (ESGE) have established a common Working Group, under the name CONUTA (CONgenital UTerine Anomalies), with the goal of developing a new updated classification system. A scientific committee (SC) has been appointed to run the project, looking also for consensus within the scientists working in the field. PARTICIPANTS/MATERIALS, SETTING, METHODS The new system is designed and developed based on (i) scientific research through critical review of current proposals and preparation of an initial proposal for discussion between the experts, (ii) consensus measurement among the experts through the use of the DELPHI procedure and (iii) consensus development by the SC, taking into account the results of the DELPHI procedure and the comments of the experts. Almost 90 participants took part in the process of development of the ESHRE/ESGE classification system, contributing with their structured answers and comments. MAIN RESULTS AND THE ROLE OF CHANCE The ESHRE/ESGE classification system is based on anatomy. Anomalies are classified into the following main classes, expressing uterine anatomical deviations deriving from the same embryological origin: U0, normal uterus; U1, dysmorphic uterus; U2, septate uterus; U3, bicorporeal uterus; U4, hemi-uterus; U5, aplastic uterus; U6, for still unclassified cases. Main classes have been divided into sub-classes expressing anatomical varieties with clinical significance. Cervical and vaginal anomalies are classified independently into sub-classes having clinical significance. LIMITATIONS, REASONS FOR CAUTION The ESHRE/ESGE classification of female genital anomalies seems to fulfill the expectations and the needs of the experts in the field, but its clinical value needs to be proved in everyday practice. WIDER IMPLICATIONS OF THE FINDINGS The ESHRE/ESGE classification system of female genital anomalies could be used as a starting point for the development of guidelines for their diagnosis and treatment. STUDY FUNDING/COMPETING INTEREST(S) None.
Reproductive Biomedicine Online | 2008
Stephan Gordts; Jan J. Brosens; Luca Fusi; Giuseppe Benagiano; Ivo Brosens
Modern imaging techniques allow non-invasive diagnosis of adenomyosis, a relatively common disorder characterized by the presence of heterotopic endometrial glands and stroma in the myometrium with hyperplasia of the adjacent smooth muscle. The study of adenomyosis is greatly hampered by a lack of clear terminology and the absence of a consensus classification of the lesions. Any classification of adenomyosis must begin with an evaluation of the myometrium underlying the endometrium, the so-called junctional zone, since homogeneous thickening of this zone has become the standard criterion for non-invasive diagnosis. Although transvaginal sonography is useful for the detection of adenomyosis, the technique is highly operator dependent. Magnetic resonance imaging provides superior soft tissue resolution and currently represents the most accurate technique for non-invasive diagnosis. Adenomyosis represents a spectrum of lesions, ranging from increased thickness of the junctional zone to overt adenomyosis and adenomyomas, which in turn can be subclassified. It is increasingly recognized that adenomyosis is often associated with pelvic endometriosis yet the contribution of myometrial lesions to clinical symptoms, such as infertility and pain, remains poorly understood. Moreover, recent studies indicate that adenomyosis is a progressive disease that changes in appearance during the reproductive years. A consensus classification of uterine adenomyosis is urgently required.
Fertility and Sterility | 2001
Stephan Gordts; Antoine Watrelot; Rudi Campo; Ivo Brosens
OBJECTIVE To determine the risk and outcome of bowel injury associated with new techniques of transvaginal pelvic endoscopy. DESIGN A multinational retrospective survey based on confidential, self-reported cases. SETTING Tertiary referral centers for infertility. PATIENT(S) Infertile patients without obvious pelvic pathology. INTERVENTION(S) Transvaginal hydrolaparoscopy and fertiloscopy. MAIN OUTCOME MEASURE(S) Full-thickness bowel injury. RESULT(S) Thirty-nine responders reported a total of 24 bowel injuries (0.65%) in 3667 procedures. After initial experience, the prevalence of bowel injury was 0.25%. All of the injuries were diagnosed during the procedure. Twenty-two (92%) of the cases were managed without consequences. CONCLUSION(S) The bowel lesion caused by the new techniques of transvaginal pelvic endoscopy tends to be minor and under strict conditions can be treated expectantly.
Human Reproduction | 2009
Guido Pennings; Candice Autin; Wim Decleer; Anne Delbaere; Luc Delbeke; Annick Delvigne; Diane De Neubourg; Paul Devroey; Marc Dhont; Thomas D'Hooghe; Stephan Gordts; Bernard Lejeune; Michelle Nijs; P Pauwels; B. Perrad; Céline Pirard; Ffrank Vandekerckhove
BACKGROUND Cross-border reproductive care indicates the cross-border movements made by patients to obtain infertility treatment they cannot obtain at home. The problem at present is that empirical data on the extent of the phenomenon are lacking. This article presents the data on infertility patients going to Belgium for treatment. METHODS A survey was conducted among the centres for reproductive medicine that are allowed to handle oocytes and create embryos (B-centres). Data were collected on the nationality of patients and the type of treatment for which they attended during the period 2000-2007. RESULTS Sixteen of 18 centres responded to the questionnaire. The flow of foreign patients has stabilized since 2006 at approximately 2100 patients per year. The majority of foreign nationals seeking treatment in Belgium were French women for sperm donation. The next highest group was patients entering the country to obtain ICSI with ejaculated sperm. CONCLUSIONS There are clear indications that numerous movements are motivated by the wish to evade legal restrictions in ones home country, either because the technology is prohibited or because the patients have characteristics, which exclude them from treatment in their own countries.
Ultrasound in Obstetrics & Gynecology | 2015
T. Van den Bosch; Margit Dueholm; F. Leone; Lil Valentin; C. K. Rasmussen; A. Votino; D. Van Schoubroeck; C. Landolfo; A. Installe; S. Guerriero; C. Exacoustos; Stephan Gordts; Beryl R. Benacerraf; Thomas D'Hooghe; B. De Moor; H. Brolmann; Steven R. Goldstein; E. Epstein; Tom Bourne; D. Timmerman
The MUSA (Morphological Uterus Sonographic Assessment) statement is a consensus statement on terms, definitions and measurements that may be used to describe and report the sonographic features of the myometrium using gray‐scale sonography, color/power Doppler and three‐dimensional ultrasound imaging. The terms and definitions described may form the basis for prospective studies to predict the risk of different myometrial pathologies, based on their ultrasound appearance, and thus should be relevant for the clinician in daily practice and for clinical research. The sonographic features and use of terminology for describing the two most common myometrial lesions (fibroids and adenomyosis) and uterine smooth muscle tumors are presented. Copyright
Gynecological Surgery | 2013
Grigoris F. Grimbizis; Stephan Gordts; Attilio Di Spiezio Sardo; Sara Y. Brucker; Marco Gergolet; Tin-Chiu Li; Vasilios Tanos; Hans Brölmann; Luca Gianaroli; Rudi Campo
The new ESHRE/ESGE classification system of female genital anomalies is presented, aiming to provide a more suitable classification system for the accurate, clear, correlated with clinical management and simple categorization of female genital anomalies. Congenital malformations of the female genital tract are common miscellaneous deviations from normal anatomy with health and reproductive consequences. Until now, three systems have been proposed for their categorization, but all of them are associated with serious limitations. The European Society of Human Reproduction and Embryology (ESHRE) and the European Society for Gynaecological Endoscopy (ESGE) have established a common Working Group, under the name CONUTA (CONgenital UTerine Anomalies), with the goal of developing a new updated classification system. A scientific committee has been appointed to run the project, looking also for consensus within the scientists working in the field. The new system is designed and developed based on: (1) scientific research through critical review of current proposals and preparation of an initial proposal for discussion between the experts, (2) consensus measurement among the experts through the use of the DELPHI procedure and (3) consensus development by the scientific committee, taking into account the results of the DELPHI procedure and the comments of the experts. Almost 90 participants took part in the process of development of the ESHRE/ESGE classification system, contributing with their structured answers and comments. The ESHRE/ESGE classification system is based on anatomy. Anomalies are classified into the following main classes, expressing uterine anatomical deviations deriving from the same embryological origin: U0, normal uterus; U1, dysmorphic uterus; U2, septate uterus; U3, bicorporeal uterus; U4, hemi-uterus; U5, aplastic uterus; U6, for still unclassified cases. Main classes have been divided into sub-classes expressing anatomical varieties with clinical significance. Cervical and vaginal anomalies are classified independently into sub-classes having clinical significance. The ESHRE/ESGE classification of female genital anomalies seems to fulfil the expectations and the needs of the experts in the field, but its clinical value needs to be proved in everyday practice. The ESHRE/ESGE classification system of female genital anomalies could be used as a starting point for the development of guidelines for their diagnosis and treatment.
Reproductive Biomedicine Online | 2014
Christos A. Venetis; Stamatis P Papadopoulos; Rudi Campo; Stephan Gordts; Basil C. Tarlatzis; Grigoris Grimbizis
The clinical implications of congenital uterine anomalies (CUA), and the benefits of hysteroscopic resection of a uterine septum, were evaluated. Studies comparing reproductive and obstetric outcome of patients with and without CUA and of patients who had and had not undergone hysteroscopic resection of a uterine septum, were evaluated. Meta-analysis of studies indicated that the pregnancy rate was decreased in women with CUA (RR 0.85, 95% CI 0.73 to 1.00; marginally significant finding, P = 0.05). The spontaneous abortion rate was increased in women with CUA (RR 1.68, 95% CI 1.31 to 2.15). Preterm delivery rates (RR 2.21, 95% CI 1.59 to 3.08), malpresentation at delivery (RR 4.75, 95% CI 3.29 to 6.84), low birth weight (RR 1.93, 95% CI 1.50 to 2.49) and perinatal mortality rates (RR 2.43, 95% CI 1.34 to 4.42) were significantly higher in women with CUA. Hysteroscopic removal of a septum was associated with a reduced probability of spontaneous abortion (RR 0.37, 95% CI 0.25 to 0.55) compared with untreated women. Presence of CUA might be associated with a detrimental effect on the probability of pregnancy achievement, spontaneous abortion and obstetric outcome. Hysteroscopic removal of a septum may reduce the probability of a spontaneous abortion.
Fertility and Sterility | 2002
Kavitha Dheenadayalu; Ian Mak; Stephan Gordts; Rudi Campo; Jenny Higham; Patrick Puttemans; John O. White; Mark Christian; Luca Fusi; Jan J. Brosens
OBJECTIVE To determine whether expression of aromatase P450 mRNA in eutopic endometrium is predictive of the presence of pelvic endometriosis. DESIGN A prospective, multicenter, observational study. SETTING Four tertiary centers for reproductive medicine. PATIENT(S) Sixty subjects of reproductive age undergoing laparoscopy for subfertility exploration, pain assessment, or sterilization. INTERVENTION(S) Endometrial biopsy at time of laparoscopy. MAIN OUTCOME MEASURE(S) The expression of aromatase P450 mRNA in endometrial specimens was determined by single-tube reverse transcription-polymerase chain reaction (RT-PCR). Glyceraldehyde-3-phosphate dehydrogenase (GAPDH) mRNA was amplified in parallel to exclude amplification failure. RESULT(S) The RT-PCR amplification was successful in 56 of the 60 biopsies (93%). Pelvic endometriosis was diagnosed in 34 patients (61%) and was strongly associated with aromatase P450 mRNA expression in eutopic endometrium. As a diagnostic marker for endometriosis, aromatase P450 mRNA expression yielded a sensitivity of 82%, a specificity of 59%, a positive predictive value of 76%, and a negative predictive value of 67%. If additional uterine pathology was taken in account, the sensitivity increased to 84%, the specificity to 72%, the positive predictive value to 87%, but the negative predictive value remained unchanged (67%). CONCLUSION(S) Although endometrial aromatase P450 gene expression is highly predictive of the presence of pelvic disease, the relative high incidence of false-negative results and lack of specificity is likely to impair clinical application.
Fertility and Sterility | 2001
Ivo Brosens; Stephan Gordts; Rudi Campo
OBJECTIVE To determine whether transvaginal hydrolaparoscopy is superior to standard laparoscopy for detection of subtle endometriotic adhesions of the ovary. DESIGN Videotapes of standard laparoscopy and transvaginal hydrolaparoscopy were viewed by an independent observer in random order and in a blinded manner. SETTING Tertiary referral centers for infertility. PATIENT(S) Patients with minimal or mild endometriosis (n = 11) and unexplained infertility (n = 10) on standard laparoscopy from a group of 43 patients with infertility who were undergoing both studies. INTERVENTION(S) Transvaginal hydrolaparoscopy followed by standard laparoscopy. MAIN OUTCOME MEASURE(S) Detection of unexplained ovarian adhesions. RESULT(S) Patients with minimal and mild endometriosis and unexplained infertility had significantly more ovarian adhesions on transvaginal hydrolaparoscopy than on standard laparoscopy. The subtle adhesions seen on transvaginal hydrolaparoscopy but not on standard laparoscopy were filmy, microvascularized, and nonconnecting. CONCLUSION(S) Unexplained ovarian adhesions are frequently detected on transvaginal hydrolaparoscopy but not on standard laparoscopy in infertile patients with minimal and mild endometriosis and unexplained infertility.
Reproductive Biomedicine Online | 2005
Luca Gianaroli; Stephan Gordts; Arianna D'Angelo; M. Cristina Magli; Ivo Brosens; Carlo Cetera; Rudi Campo; Anna Pia Ferraretti
To evaluate the influence of inner myometrium fibroids (myomas) on the outcome of IVF cycles, a retrospective agematched controlled study was performed at SISMeR Reproductive Medicine Unit. The study group included 129 IVF/intracytoplasmic sperm injection cycles in 75 patients with one or more intramural and/or submucosal fibroids, while the control group consisted of 129 cycles in 127 patients without fibroids. The two groups were similar for mean oestradiol concentration at human chorionic gonadotrophin administration (1205.16 +/- 874 versus 1395 +/- 821 pg/ml), mean number of transferred embryos (2.02 +/- 0.4 versus 2.14 +/- 0.6) and clinical pregnancy rate (34.9 versus 41.1%). Conversely, the implantation rate was significantly lower in the study group (18.0%) than in the control group (26.5%; chi(2) = 4.81, P < 0.05), whereas the rate of spontaneous abortion demonstrated an opposite trend (40 versus 18.9%; chi(2) = 4.34, P < 0.05). Further research should be aimed at classifying fibroids on the basis of their location, especially when they are positioned in the junctional zone of the myometrium. Whether this classification will be superior in predicting the impact of fibroids on the reproductive outcome should be elaborated in a large multicentric study.