The need for longitudinal data on the value of fertility treatment for infertile patients' quality of life: A review and pilot study

Infertility threatens the life goal of parenthood and, hence, quality of life (QoL) of (wo)men, but the fertility clinic trajectory might be burdensome. This review of longitudinal studies and pilot longitudinal study examines the impact of the pre-in vitro fertilization (IVF) fertility clinic trajectory on patient-reported outcome measures (PROMs) for emotional well-being, including QoL. A publication found that the diagnostic workup decreases men's infertility-specific distress while publications disagree whether it decreases (wo)men's anxious and depressive reactions. Intrauterine insemination (IUI) was found to increase (wo)men's depressive reactions. Publications on infertility-specific, health-related, and overall QoL were missing. The pilot indicated that (wo)men's overall QoL is not affected by the diagnostic workup but is decreased by the time of the third IUI. Longitudinal studies on the impact of starting the fertility clinic trajectory on PROMs are needed as they are essential for patient-centered clinical decision-making and patient-centered policy-level decision-making.

Vitrification of cleavage stage day 3 embryos results in higher live birth rates than conventional slow freezing: a RCT

STUDY QUESTION

Is the live birth rate (LBR) per embryo thawed/warmed higher when Day 3 cleavage stage embryos are cryopreserved by vitrification compared with slow freezing?

SUMMARY ANSWER

The LBR per embryo thawed/warmed was higher after vitrification than after slow freezing on Day 3, based on better embryo survival, quality and availability of embryos in the vitrification group.

WHAT IS KNOWN ALREADY

Post-thawing survival rate of cleavage-stage embryos has been reported to be higher after vitrification than after slow freezing.

STUDY DESIGN, SIZE, DURATION

This RCT was performed in an academic tertiary center between September 2011 and March 2013. If supernumerary embryos were available on Day 3, patients were randomized at the time of cryopreservation using a computerized system to determine a simple allocation to the vitrification group or the slow freezing group and all embryos were frozen with the same technique. The primary outcome of this study was the LBR per embryo thawed/warmed. Power calculation revealed that 184 thawed embryos were needed in each group (β = 0.8, α < 0.05) to test the hypothesis that the LBR per embryo thawed/warmed was significantly higher (16%) after vitrification than after slow freezing (6%).

PARTICIPANTS/MATERIALS, SETTING, METHODS

Patients <40 years old undergoing their first oocyte retrieval (OR), with embryo transfer and with supernumerary embryos on Day 3, were randomized. Day 3 embryos with ≥6 cells, <25% fragmentation and morphologically equal blastomeres were cryopreserved by slow freezing (using 1,2-propanediol and 0.1 M sucrose as cryoprotectant) or by closed vitrification using commercially available freezing/vitrification media. Survival was defined as ≥50% cells were intact after thawing. Thawed embryos were further cultured overnight. In total, 307 patients were randomized to slow freezing (155 patients, 480 embryos) or vitrification (152 patients, 495 embryos).

MAIN RESULTS AND THE ROLE OF CHANCE

By March 2013, 200 embryos were thawed after slow freezing in 95 cycles for 79 patients and 217 embryos were warmed after vitrification in 121 cycles in 90 patients. The LBR per embryo thawed/warmed was significantly higher after vitrification (16.1% (35/217)) than after slow freezing (5.0% (10/200); P < 0.0022; relative risk (RR) 3.23; 95% confidence interval (CI) 1.64-6.35). Similarly, the implantation rate per embryo thawed/warmed was higher after vitrification (20.7% (45/217) than after slow freezing (7.5% (15/200); P = 0.0012; RR 2.76; CI 1.59-4.81). The survival rate was significantly higher after vitrification (84.3% (183/217) than after slow freezing (52.5% (105/200); P < 0.0001). Significantly more embryos were fully intact after vitrification (75.4% (138/183) than after slow freezing (28.6% (30/105); P < 0.0001). The number of transfers was significantly higher after vitrification (90.1% (109/121)) than after slow freezing (73.7% (70/95); P = 0.0024).

LIMITATIONS, REASONS FOR CAUTION

Survival rates in the slow freezing group were low in this study. Additional RCTs are needed to compare reproductive outcome after vitrification and after slow freezing with 1,2-propanediol and 0.2 M sucrose, since this method has been reported to have better survival than the method used in our study. Our findings are only applicable to the specific slow freezing cryopreservation medium used in our study, and not to any other commercially available media.

WIDER IMPLICATIONS OF THE FINDINGS

When compared with slow freezing using 1,2-propanediol and 0.1 M sucrose as cryoprotectant, vitrification of Day 3 cleavage stage embryos resulted in a higher LBR per embryo warmed, and may therefore result into a higher cumulative delivery rate after one oocyte retrieval.

STUDY FUNDING/COMPETING INTERESTS

None.

TRIAL REGISTRATION NUMBER

NCT02013024.

The impact of legally restricted embryo transfer and reimbursement policy on cumulative delivery rate after treatment with assisted reproduction technology

STUDY QUESTION

What is the impact of the Belgian legislation (1 July 2003), coupling reimbursement of six assisted reproduction technology (ART) cycles per patient to restricted embryo transfer policy, on cumulative delivery rate (CDR) per patient?

SUMMARY ANSWER

The introduction of Belgian legislation in ART had no negative impact on the CDR per patient based on realistic estimates within six cycles or 36 months.

WHAT IS KNOWN ALREADY

The introduction of Belgian legislation limiting the number of embryos for transfer resulted in a reduction of the multiple pregnancy rate (MPR) per cycle by 50%.

STUDY DESIGN, SIZE, DURATION

A retrospective cohort study with a study group after implementation of the new ART legislation (July 2003 to June 2006) and the control group, before legislation (July 1999 to June 2002).

PARTICIPANTS/MATERIALS, SETTING, METHODS

CDR was compared in an academic tertiary setting between a study group after legislation (n = 795 patients, 1927 fresh and 383 frozen-thawed embryo transfer (FET) cycles) and a control group before legislation (n = 463 patients, 876 fresh and 185 FET cycles) within six cycles or 36 months, delivery or discontinuation of treatment. The CDR was estimated using life table analysis considering pessimistic, optimistic and realistic scenarios and compared after adjustment for confounding variables. In the realistic scenario we included information on embryo quality to define the prognosis of each patient discontinuing treatment.

MAIN RESULTS AND THE ROLE OF CHANCE

In the realistic scenario, CDR within 36 months was comparable (all ages, P = 0.221) in study group (60.8%) and control group (65.6%), as well as in different age groups (<36 years, P = 0.242; 36-39 years, P = 0.851; 40-42 years, P = 0.840). In the realistic scenario applied to six cycles, we found lower CDRs in the study group than in the control group within the two first cycles (all ages, P = 0.009; <36 years, P = 0.007) but no difference in CDRs between the two groups within the four subsequent cycles (all ages P = 0.232; <36 years, P = 0.198). The CDR within six cycles was 60 and 65.3% for study group and control group, respectively, for all ages, and 65.8 and 70.4%, respectively, in the subgroup younger than 36 years. In women ≥36 years, CDR within six cycles was comparable in both groups (36-39 years, 43% in study versus 44.4% in control group, P = 0.730; 40-42 years, 21% in study versus 23% in control group, P = 0.786).

LIMITATIONS, REASONS FOR CAUTION

A retrospective cohort study design was the only way to study the impact of legislation on CDR. Owing to the retrospective nature of this analysis over a long period of time, our data are potentially influenced by improvements in techniques and therefore improved success rates in ART over time.

WIDER IMPLICATIONS OF THE FINDINGS

This 'Belgian model' can now be considered for application worldwide in countries with the aim to reduce the main ART side effect (high MPR) and its associated costs without a negative effect on the main intended effect (high CDR).

STUDY FUNDING/COMPETING INTEREST(S)

The authors have no conflict of interest to declare. No funding was obtained for this study.

The significant effect of endometriosis on physical, mental and social wellbeing: results from an international cross-sectional survey

STUDY QUESTION

To what extent do the management of endometriosis and the symptoms that remain after treatment affect the quality of life in women with the disease?

SUMMARY ANSWER

Many women with endometriosis had impaired quality of life and continued to suffer from endometriosis-associated symptoms even though their endometriosis has been managed in tertiary care centres.

WHAT IS KNOWN ALREADY

The existing literature indicates that quality of life and work productivity is reduced in women with endometriosis. However, most studies have small sample sizes, are treatment related or examine newly diagnosed patients only.

STUDY DESIGN, SIZE, DURATION

A cross-sectional questionnaire-based survey among 931 women with endometriosis treated in 12 tertiary care centres in 10 countries.

PARTICIPANTS/MATERIALS, SETTING, METHODS

Women diagnosed with endometriosis who had at least one contact related to endometriosis-associated symptoms during 2008 with a participating centre were enrolled into the study. The study investigated the effect of endometriosis on education, work and social wellbeing, endometriosis-associated symptoms and health-related quality of life, by using questions obtained from the World Endometriosis Research Foundation (WERF) GSWH instrument (designed and validated for the WERF Global Study on Women's Health) and the Short Form 36 version 2 (SF-36v2).

MAIN RESULTS AND THE ROLE OF CHANCE

Of 3216 women invited to participate in the study, 1450 (45%) provided informed consent and out of these, 931 (931/3216 = 29%) returned the questionnaires. Endometriosis had affected work in 51% of the women and affected relationships in 50% of the women at some time during their life. Dysmenorrhoea was reported by 59%, dyspareunia by 56% and chronic pelvic pain by 60% of women. Quality of life was decreased in all eight dimensions of the SF-36v2 compared with norm-based scores from a general US population (all P < 0.01). Multivariate regression analysis showed that number of co-morbidities, chronic pain and dyspareunia had an independent negative effect on both the physical and mental component of the SF-36v2.

LIMITATIONS, REASONS FOR CAUTION

The fact that women were enrolled in tertiary care centres could lead to a possible over-representation of women with moderate-to-severe endometriosis, because the participating centres typically treat more complex and referred cases of endometriosis. The response rate was relatively low. Since there was no Institute Review Board approval to do a non-responder investigation on basic characteristics, some uncertainty remains regarding the representativeness of the investigated population.

WIDER IMPLICATIONS OF THE FINDINGS

This international multicentre survey represents a large group of women with endometriosis, in all phases of the disease, which increases the generalizability of the data. Women still suffer from frequent symptoms, despite tertiary care management, in particular chronic pain and dyspareunia. As a result their quality of life is significantly decreased. A patient-centred approach with extensive collaboration across disciplines, such as pain specialists, psychologists, sexologists and social workers, may be a valuable strategy to improve the long-term care of women with endometriosis.

STUDY FUNDING/COMPETING INTEREST(S)

The WERF EndoCost study is funded by the World Endometriosis Research Foundation (WERF) through grants received from Bayer Schering Pharma AG, Takeda Italia Farmaceutici SpA, Pfizer Ltd and the European Society of Human Reproduction and Embryology. The sponsors did not have a role in the design and conduct of the study; collection, management, analysis and interpretation of the data; and preparation, review or approval of the manuscript. L.H. is the chief executive and T.D. was a board member of WERF at the time of funding. T.D. holds the Merck-Serono Chair in Reproductive Medicine and Surgery, and the Ferring Chair in Reproductive Medicine at the Katholieke Universiteit Leuven in Belgium and has served as consultant/research collaborator for Merck-Serono, Schering-Plough, Astellas and Arresto.

Prevalence of endometriosis diagnosed by laparoscopy in adolescents with dysmenorrhea or chronic pelvic pain: a systematic review

BACKGROUND Endometriosis associated with pain symptoms in adolescents has been extensively reported, but the exact prevalence is unclear because pain symptoms may be atypical and endometriosis can only be diagnosed by laparoscopy. The aim of this paper is to provide a systematic review of the prevalence of endometriosis diagnosed by laparoscopy in adolescents. METHODS A systematic literature search was carried out for relevant articles published between 1980 and 2011 in the databases PUBMED and EMBASE, based on the keywords 'endometriosis', 'laparoscopy', 'adolescents' and 'chronic pelvic pain (CPP)'. In addition, the reference lists of the selected articles were examined. RESULTS Based on 15 selected studies, the overall prevalence of visually confirmed endometriosis was 62% (543/880; range 25-100%) in all adolescent girls undergoing laparoscopic investigation, 75% (237/314) in girls with CPP resistant to treatment, 70% (102/146) in girls with dysmenorrhea and 49% (204/420) in girls with CPP that is not necessarily resistant to treatment. Among the adolescent girls with endometriosis, the overall prevalence of American Society of Reproductive Medicine classified moderate-severe endometriosis was 32% (82/259) in all girls, 16% (17/108) in girls with CPP resistant to treatment, 29% (21/74) in girls with dysmenorrhea and 57% (44/77) in girls with CPP that is not necessarily resistant to treatment. Due to the quality of the included papers an overestimation of the prevalence and/or severity of endometriosis is possible. CONCLUSIONS About two-thirds of adolescent girls with CPP or dysmenorrhea have laparoscopic evidence of endometriosis. About one-third of these adolescents with endometriosis have moderate-severe disease. The value of early detection of endometriosis in symptomatic adolescents and the indications for laparoscopic investigation in adolescents require more research.

Quality indicators for all dimensions of infertility care quality: consensus between professionals and patients

STUDY QUESTION

What is the relative importance of the six dimensions of quality of care according to different stakeholders and can a quality indicator set address all six quality dimensions and incorporate the views from professionals working in different disciplines and from patients?

SUMMARY ANSWER

Safety, effectiveness and patient centeredness were the most important quality dimensions. All six quality dimensions can be assessed with a set of 24 quality indicators, which is face valid and acceptable according to both professionals from different disciplines and patients.

WHAT IS KNOWN ALREADY

To our knowledge, no study has weighted the relative importance of all quality dimensions to infertility care. Additionally, there are very few infertility care-specific quality indicators and no quality indicator set covers all six quality dimensions and incorporated the views of professionals and patients.

STUDY DESIGN, SIZE AND DURATION

A three-round iterative Delphi survey including patients and professionals from four different fields, conducted in two European countries over the course of 2011 and 2012.

PARTICIPANTS/MATERIALS, SETTINGS AND METHODS

Dutch and Belgian gynaecologists, embryologists, counsellors, nurses/midwifes and patients took part (n = 43 in round 1 and finally 30 in round 3). Respondents ranked the six quality dimensions twice for importance and their agreement was evaluated. Furthermore, in round 1, respondents gave suggestions, which were subsequently uniformly formulated as quality indicators. In rounds 2 and 3, respondents rated the quality indicators for preparedness to measure and for importance (relation to quality and prioritization for benchmarking). Providing feedback allowed selecting indicators based on consensus between stakeholder groups. Measurable indicators, important to all stakeholder groups, were selected for each quality dimension.

MAIN RESULTS

All stakeholder groups and most individuals agreed that safety, effectiveness and patient centeredness were the most important quality dimensions. A total of 498 suggestions led to the development of 298 indicators. Professionals were sufficiently prepared to measure 204 of these indicators. Based on importance, 52 (7-15 per dimension; round 2) and finally 24 (4 per dimension; round 3) quality indicators were selected.

LIMITATIONS, REASONS FOR CAUTION

The final quality indicator set does not cover the entire care process, but rather takes a 'sample' of each quality dimension. Although the quality indicators are face valid and acceptable, their psychometric characteristics need to be tested by further research.

WIDER IMPLICATIONS OF THE FINDINGS

Quality management should focus on safety, effectiveness and patient centeredness of care. Clinics can use the quality indicator set to assess all quality dimensions of their care.

Replication of endometriosis-associated single-nucleotide polymorphisms from genome-wide association studies in a Caucasian population

STUDY QUESTION

Is it possible to replicate the previously identified genetic association of four single-nucleotide polymorphisms (SNPs), rs12700667, rs7798431, rs1250248 and rs7521902, with endometriosis in a Caucasian population?

SUMMARY ANSWER

A borderline association was observed for rs1250248 and endometriosis (P = 0.049). However, we could not replicate the other previously identified endometriosis-associated SNPs (rs12700667, rs7798431 and rs7521902) in the same population.

WHAT IS KNOWN ALREADY

Endometriosis is considered a complex disease, influenced by several genetic and environmental factors, as well as interactions between them. Previous studies have found genetic associations with endometriosis for SNPs at the 7p15 and 2q35 loci in a Caucasian population.

STUDY DESIGN, SIZE, DURATION

Allele frequencies of SNPs were investigated in patients with endometriosis and controls.

PARTICIPANTS/MATERIALS, SETTING, METHODS

Blood samples and peritoneal biopsies were taken from a Caucasian female population consisting of 1129 patients with endometriosis and 831 controls. DNA was extracted for genotyping. The study was performed at a University hospital and research laboratories.

MAIN RESULTS AND THE ROLE OF CHANCE

A weak association with endometriosis (all stages) was observed for rs1250248 (P = 0.049). No significant associations were observed for the SNPs rs12700667, rs7798431 and rs7521902. A non-significant trend towards the association of rs1250248 with moderate/severe endometriosis was observed (odds ratio 1.18, 95% confidence interval 0.97-1.44).

LIMITATIONS, REASONS FOR CAUTION

The inability to confirm all previous findings may result from differences between populations and type II errors.

WIDER IMPLICATIONS OF THE FINDINGS

Our result demonstrates the difficulty of identifying common genetic variants in complex diseases.

STUDY FUNDING/COMPETING INTEREST(S)

This study was supported by grants from the Karolinska Institutet and Stockholm City County/Karolinska Institutet (ALF), Stockholm, Sweden, Swedish Medical Research Council (K2007-54X-14212-06-3, K2010-54X-14212-09-3), Stockholm, Sweden, Leuven University Research Council (Onderzoeksraad KU Leuven), the Leuven University Hospitals Clinical Research Foundation (Klinisch onderzoeksfonds) and by the National Scientific Foundation (Fonds voor Wetenschappelijk Onderzoek, FWO). The authors have no conflict of interest.

Semi-automated morphometric analysis of human embryos can reveal correlations between total embryo volume and clinical pregnancy

STUDY QUESTION

Is there a link between morphometric characteristics measured by a computer-assisted scoring system and clinical pregnancy outcome?

SUMMARY ANSWER

The results confirm that computer-assisted assessment of the total embryo volume is associated with clinical pregnancy outcome and can be used to complement current procedures of embryo selection.

WHAT IS KNOWN ALREADY

Morphometric analysis of a large group of embryos has revealed the potential to optimize algorithms for image-analysis systems for the grading of embryos and predicting pregnancy outcomes.

STUDY DESIGN, SIZE, DURATION

Oocytes and embryos were obtained from 458 patients who underwent single embryo transfer on Day 3 after IVF/ICSI, between September 2006 and December 2010 at the Leuven University Fertility Center, Belgium. In total, the data set contained 2796 embryos including 458 embryos that were transferred on Day 3. Ongoing pregnancy was defined as the presence of at least one intrauterine gestational sac at 20 weeks.

PARTICIPANTS/MATERIALS, SETTING, METHODS

Patients included in this study were younger than 36 years, entering their first (n = 375) or second (n = 83) IVF/ICSI cycle and were only included once. Patients were excluded if the cycle included biopsy for PGD or if donor sperm/donor oocytes were used. Based on the 26 sequential images of the same embryo taken at one time point in different planes, the software calculates the total cytoplasmic volume for each time point, from which any reduction or change in the volume with time can be assessed (which helps interpret the degree of fragmentation) and the size of blastomeres. The diameter of the smallest and largest blastomere and the total volume of each embryo were extracted from the computer-assisted scoring system database and the coefficient of diversity was calculated for Days 1, 2 and 3. A logistic regression analysis was performed to determine the range of embryo volume associated with an increased chance of pregnancy.

MAIN RESULTS AND THE ROLE OF CHANCE

On Day 3, blastomeres of 8-cell stage embryos were less divergent in size than those of 6-, 7-, 9-cell stage embryos. Although, the coefficients of diversity (ratio of the largest:smallest blastomeres) of implanted embryos tended to be lower than for non-implanted embryos, the difference was only significant for 6-cell stage embryos (P = 0.02). After logistic regression, an association between total embryo volume and pregnancy was observed which had a quadratic nature: both lower and higher volumes were associated with a lower probability of successful pregnancy. A significant association was identified between total embryo volume and pregnancy rate on both Days 2 (P = 0.003) and 3 (P = 0.0003). Diagnostic measures (sensitivity, specificity, positive predictive value, accuracy and c-statistics) of the defined volume range were relatively poor. However, results showed a good negative predictive value [76.86% (95% confidence interval 71.03-82.02) on Day 3].

LIMITATIONS, REASONS FOR CAUTION

A general disadvantage of studies evaluating the impact of a characteristic on the implantation potential of an embryo is the fact that the best embryo is chosen for transfer. No comparisons can therefore be made with the other embryos. Moreover, the decision process is currently based on a non-automated, standard scoring system, which means that a 'bias' in the selection process is always present.

WIDER IMPLICATIONS OF THE FINDINGS

Our results are an important step towards the development of an automated computer-assisted scoring system for the morphological characteristics of human embryos to improve embryo selection for optimizing implantation potential. Total embryo volume appears to be one of the objective characteristics that should be included.

STUDY FUNDING/COMPETING INTEREST(S)

None.

TRIAL REGISTRATION NUMBER

Not applicable.

Dutch translation of the ICMART-WHO revised glossary on ART terminology

BACKGROUND

A standardized set of definitions was needed in the field of medically assisted reproduction (MAR) to standardize and harmonize international data acquisition and to monitor the availability, efficacy, and safety of assisted reproductive technology (ART) worldwide. In order to provide accurate national data, the use of a terminology list which was composed and negotiated by the International Committee for Monitoring Assisted Reproductive Technology (ICMART) is essential, and a translation into Dutch was crucial for its implementation in Belgium and the Netherlands.

METHOD

The authors of the Dutch article translated the English publication that appeared simultaneously in Human Reproduction and Fertility and Sterility in 2009. A consensus text was obtained after evaluation by experts in the field of MAR both in the Netherlands and in Belgium and then by the board of the respective organizations of obstetrics and gynecology. It was then sent to the World Health Organization (WHO) for approval of publication.

RESULT

A translation into Dutch of the ICMART terminology of 2009 was obtained after consensus was reached on clinical and laboratory procedures, outcome variables, and birth.

CONCLUSION

The availability and use of standardized terminology and its translation into Dutch will add to a more standardized communication between professionals responsible for the practice of ART and for those responsible for national, regional, and international registries.

Combined mRNA microarray and proteomic analysis of eutopic endometrium of women with and without endometriosis

BACKGROUND

An early semi-invasive diagnosis of endometriosis has the potential to allow early treatment and minimize disease progression but no such test is available at present. Our aim was to perform a combined mRNA microarray and proteomic analysis on the same eutopic endometrium sample obtained from patients with and without endometriosis.

METHODS

mRNA and protein fractions were extracted from 49 endometrial biopsies obtained from women with laparoscopically proven presence (n= 31) or absence (n= 18) of endometriosis during the early luteal (n= 27) or menstrual phase (n= 22) and analyzed using microarray and proteomic surface enhanced laser desorption ionization-time of flight mass spectrometry, respectively. Proteomic data were analyzed using a least squares-support vector machines (LS-SVM) model built on 70% (training set) and 30% of the samples (test set).

RESULTS

mRNA analysis of eutopic endometrium did not show any differentially expressed genes in women with endometriosis when compared with controls, regardless of endometriosis stage or cycle phase. mRNA was differentially expressed (P< 0.05) in women with (925 genes) and without endometriosis (1087 genes) during the menstrual phase when compared with the early luteal phase. Proteomic analysis based on five peptide peaks [2072 mass/charge (m/z); 2973 m/z; 3623 m/z; 3680 m/z and 21133 m/z] using an LS-SVM model applied on the luteal phase endometrium training set allowed the diagnosis of endometriosis (sensitivity, 91; 95% confidence interval (CI): 74-98; specificity, 80; 95% CI: 66-97 and positive predictive value, 87.9%; negative predictive value, 84.8%) in the test set.

CONCLUSION

mRNA expression of eutopic endometrium was comparable in women with and without endometriosis but different in menstrual endometrium when compared with luteal endometrium in women with endometriosis. Proteomic analysis of luteal phase endometrium allowed the diagnosis of endometriosis with high sensitivity and specificity in training and test sets. A potential limitation of our study is the fact that our control group included women with a normal pelvis as well as women with concurrent pelvic disease (e.g. fibroids, benign ovarian cysts, hydrosalpinges), which may have contributed to the comparable mRNA expression profile in the eutopic endometrium of women with endometriosis and controls.

Paired-box gene 2 is down-regulated in endometriosis and correlates with low epidermal growth factor receptor expression

BACKGROUND

Paired-box 2 (Pax2) is involved in the development of the female genital tract and has been associated with endometrial pathologies. The expression of Pax2 is induced by epidermal growth factor (EGF) and estrogens. In the present study, Pax2 expression and regulation were investigated in endometriosis.

METHODS AND RESULTS

Pax2 protein expression was assessed by immunohistochemistry in the eutopic (i.e. inside the uterus) and ectopic tissue (endometriosis) from 11 patients. Immunoreactivity was high in the endometrium, with strong epithelial and weaker stromal staining. Similar expression patterns of Pax2 were observed in the endometrium of women without endometriosis (n = 12). The mRNA level of Pax2 was assessed by real-time PCR in the eutopic and ectopic endometria of 14 patients and in the endometrium from women without endometriosis (n = 20). Pax2 expression was lower in endometriotic lesions than that in the eutopic endometrium of patients (P< 0.001) and controls (P= 0.007). Three possible mechanisms determining low Pax2 expression were investigated: EGF signalling, CpG DNA methylation of the Pax2 promoter and steroid response. The mRNA level of the EGF receptor (EGFR1) was assessed in the samples used for Pax2 mRNA assessment. A significant correlation between EGFR1 and Pax2 in both eutopic and ectopic tissues was observed (R = 0.58; slope regression line, 0.81; 95% CI: 0.09-1.52 and R = 0.54; slope regression line, 2.51; 95% CI: 0.02-4.99, respectively). CpG DNA methylation was analyzed by methyl-specific PCR in two regions of the Pax2 promoter but they were unmethylated in all samples. Steroid responsiveness was assessed using endometrial explant cultures and Pax2 was not regulated by either 17β-estradiol or progesterone.

CONCLUSIONS

In endometriosis patients, Pax2 is down-regulated in the lesions compared with the eutopic tissue, possibly due to low EGF signalling.

Patients from across Europe have similar views on patient-centred care: an international multilingual qualitative study in infertility care

BACKGROUND

International patient centredness concepts were suggested but never conceptualized from the patients' perspective. Previously, a literature review and a monolingual qualitative study defined 'patient-centred infertility care' (PCIC). The present study aimed to test whether patients from across Europe value the same aspects of infertility care.

METHODS

An international multilingual focus group (FG) study with 48 European patients from fertility clinics in Austria, Spain, the UK and Belgium, with deductive content analysis.

RESULTS

All specific care aspects important to participants from all countries could be allocated to the 10 dimensions of PCIC, each discussed in every FG, including: 'information provision', 'attitude of and relationship with staff', 'competence of clinic and staff', 'communication', 'patient involvement and privacy', 'emotional support', 'coordination and integration', 'continuity and transition', 'physical comfort' and 'accessibility'. Most specific care aspects (65%) were discussed in two or more countries and only a few new codes (11%) needed to be added to the previously published coding tree. Rankings from across Europe clearly showed that 'information provision' is a top priority.

CONCLUSIONS

The PCIC-model is the first patient-centred care (PCC) model based on the patients' perspective to be validated in an international setting. Although health-care organization and performance differ, the similarities between countries in the infertile patients' perspective were striking, as were the similarities with PCC models from other clinical conditions. A non-condition specific international PCC model and a European instrument for the patient centredness of infertility care could be developed. European professionals can learn from each other on how to provide PCC.

Ovarian cancer-associated polymorphisms in the BNC2 gene among women with endometriosis

BACKGROUND

Endometriosis is a common benign gynaecological disease. Epidemiological studies have demonstrated associations between endometriosis and ovarian cancer. Recent genome-wide association studies of ovarian cancer have identified several single nucleotide polymorphisms (SNPs) in the Basonuclin 2 (BNC2) gene. In this study, we investigated these polymorphism in women with endometriosis.

METHODS

Six SNPs in and upstream of the BNC2 gene (rs3814113, rs4445329, rs10962656, rs12379183, rs10756819 and rs1339552) were investigated using TaqMan allelic discrimination analysis in a Caucasian population (cases: 798, controls: 351). Allelic frequencies were used as main outcome measure.

RESULTS

No associations were observed between the analysed SNPs and endometriosis.

CONCLUSIONS

Our results suggest that the analysed polymorphisms in the BNC2 gene are unlikely to contribute to the previously reported risk of ovarian cancer in women with endometriosis.

Patient-centred infertility care: a qualitative study to listen to the patient's voice

BACKGROUND High-quality care for patients faced with infertility should be patient-centred. Few studies have provided in-depth insights into the patient's perspective on care and, to the best of our knowledge, no study has provided a model of the complex concept 'patient-centred infertility care'. Therefore, a qualitative study aimed at understanding 'patient-centred infertility care' from the patient's perspective was conducted. METHODS Fourteen focus group discussions were organized with patients (n = 103) from two European countries to find out about patients' positive and negative experiences with infertility care. Content analysis of the transcripts and analysis of patients' priority lists were conducted. RESULTS The patient-centredness of infertility care depends on 10 detailed dimensions, which can be divided into system and human factors, and there is a two-way interaction between both kinds of factors. System factors, in order of patient's priority, are: provision of information, competence of clinic and staff, coordination and integration, accessibility, continuity and transition and physical comfort. Human factors, in order of patient's priority, are: attitude of and relationship with staff, communication, patient involvement and privacy and emotional support. CONCLUSIONS This study provides a detailed patient's description of the concept 'patient-centred infertility care' and an interaction model that aids understanding of the concept. Fertility clinics are encouraged to improve the patient-centredness of their care by taking into account the detailed description of the dimensions of patient-centred infertility care, and by paying attention to both system and human factors and their interaction when setting up 'patient-centred improvement projects'.

Testicular biopsy before ART: the patients' perspective on the quality of care

BACKGROUND

So far, research on the patients' perspective on fertility care has mainly focused on women. Our primary aim was to explore what is important to men with respect to care related to testicular sperm extraction (TESE) and to identify strengths and weaknesses of that care.

METHODS

This was a mixed-method study including phenomenology on interviews with 17 'interview participants' (a purposive sample with diversification for the TESE result) who received a TESE treatment at a tertiary university clinic. Strengths and weaknesses of our TESE-related quality of care were identified. Additionally, a telephone questionnaire was answered by 15 'rating participants' not willing to be interviewed and the questionnaire was analyzed quantitatively.

RESULTS

Interview participants wanted more than effective treatment and attached importance to the attitude of fertility clinic staff, information, time flow, personalized care, 'all that is necessary', coaching, a homely atmosphere, continuity, privacy and separate accommodation. The satisfaction of rating participants (independent of the TESE result) was problematic for 'overall experience', 'physician at the day clinic' and 'gynecologist at discussion of the result'. The attitude of fertility clinic staff and information were the most obvious strengths of our TESE-related care. Weaknesses were lack of practical information on post-surgical recovery and waiting times in the waiting room.

CONCLUSIONS

TESE patients focus not only on clinical effectiveness but also on patient-centeredness of care, and this has led to organizational changes and a new patient information brochure in our center. Qualitative research is useful to examine, understand and improve the patient-centeredness of care.

The patients' perspective on fertility care: a systematic review

BACKGROUND

Patient-centered reproductive medicine (PCRM) is important for quality of care, and this is increasingly being recognized. However, its scientific basis is unclear. The main research questions addressed in this review are: 'How has the patients' perspective on fertility care been examined (method and quality)?' and 'What is the perspective of patients in developed countries on fertility care?'.

METHODS

A systematic search of electronic databases was conducted and inclusion criteria with respect to eligibility and quality were applied. The methodology of the studies was critically appraised; the findings of the studies were synthesized and organized according to: patients' value clarification and assessment of service quality and dimensions of patient-centeredness. Additionally data on patient preferences and determinants of patients' perspective on care were collected.

RESULTS

In 51 selected studies, patients' perspective on fertility care was examined with (few or many item) questionnaires and/or qualitative interviews. Significant methodological problems were observed. Fertility patients attached importance to seven out of eight dimensions of patient-centeredness (Picker institute) and two new dimensions 'fertility clinic staff' and 'skills' were developed. Overall, fertility patients want to be treated like human beings with a need for: medical skills, respect, coordination, accessibility, information, comfort, support, partner involvement and a good attitude of and relationship with fertility clinic staff. Patients' preferences between procedures and demographic, medical and psychological determinants of their perspective were defined.

CONCLUSIONS

Fertility patients have 'human needs' besides their need for medical care. Evidence on PCRM is available but significant methodological limitations call for the development and validation of a European questionnaire.

The patients' perspective on fertility care: a systematic review

BACKGROUND

Patient-centered reproductive medicine (PCRM) is important for quality of care, and this is increasingly being recognized. However, its scientific basis is unclear. The main research questions addressed in this review are: 'How has the patients' perspective on fertility care been examined (method and quality)?' and 'What is the perspective of patients in developed countries on fertility care?'.

METHODS

A systematic search of electronic databases was conducted and inclusion criteria with respect to eligibility and quality were applied. The methodology of the studies was critically appraised; the findings of the studies were synthesized and organized according to: patients' value clarification and assessment of service quality and dimensions of patient-centeredness. Additionally data on patient preferences and determinants of patients' perspective on care were collected.

RESULTS

In 51 selected studies, patients' perspective on fertility care was examined with (few or many item) questionnaires and/or qualitative interviews. Significant methodological problems were observed. Fertility patients attached importance to seven out of eight dimensions of patient-centeredness (Picker institute) and two new dimensions 'fertility clinic staff' and 'skills' were developed. Overall, fertility patients want to be treated like human beings with a need for: medical skills, respect, coordination, accessibility, information, comfort, support, partner involvement and a good attitude of and relationship with fertility clinic staff. Patients' preferences between procedures and demographic, medical and psychological determinants of their perspective were defined.

CONCLUSIONS

Fertility patients have 'human needs' besides their need for medical care. Evidence on PCRM is available but significant methodological limitations call for the development and validation of a European questionnaire.

Nonhuman primate models for translational research in endometriosis

Endometriosis, defined as the ectopic presence of endometrial-like cells, is associated with infertility and pelvic pain in women. Whereas pathogenesis and spontaneous evolution of endometriosis are still poorly understood, recurrences after surgical therapy or after medical treatment are common. Spontaneous endometriosis occurs only in women and in nonhuman primates (NHPs). Inbred rhesus monkeys kept in colonies offer an attractive preclinical model to study the inheritance of spontaneous endometriosis. Baboons with spontaneous or induced endometriosis appear to be the best NHP model to study pathogenesis, pathophysiology, spontaneous evolution and new medical treatment options. In baboons, induction of endometriosis after intrapelvic injection of menstrual endometrium leads to biological changes in peritoneal cavity and in endometrium. This induction process may allows the study of cause-effect relationships which may lead to the discovery of new biomarkers for the development of new non-invasive diagnostic tests and drugs that may prevent or treat endometriosis.

Baboon serum is superior to human or bovine serum albumin for baboon sperm capacitation and zona binding

BACKGROUND

Baboon in vitro fertilization requires capacitated sperm inappropriate media. In this study, we compared the effect of baboon serum (Bas), human serum albumin (HSA) and bovine serum albumin (BSA) on baboon sperm capacitation.

METHODS

Five males (n = 5) were electroejaculated and 43 oocytes retrieved from super-ovulated female baboons (n = 10). Each sperm sample was assessed for initial motility and concentration before and after swim-up. For swim-up, each sperm sample was incubated separately in Biggers-Whitten-Whittingham media containing either BaS, HSA, BSA or without protein supplementation (control). After swim-up, each sperm aliquot was incubated with two to three oocytes. The number of sperm bound to the zona was evaluated after overnight incubation.

RESULTS

Sperm motility and zona binding was significantly higher after capacitation in media supplemented with BaS than in HSA or BSA or in media without protein supplementation (P < 0.05).

CONCLUSION

Baboon serum is superior to HSA or BSA for baboon sperm capacitation and zona binding.

Treatment with anti-TNF monoclonal antibody (c5N) reduces the extent of induced endometriosis in the baboon

BACKGROUND

Inflammatory cytokines, including interleukin (IL)-1, IL-6, IL-8 and tumour necrosis factor-alpha (TNF-alpha), are important in the pathogenesis of endometriosis. We assessed the efficacy of anti-TNF monoclonal antibody (mAb, c5N), known to prevent induced endometriosis in baboons, in reducing established endometriosis in baboons.

METHODS

This prospective, randomized, blinded, controlled study was conducted in baboons at the Institute of Primate Research (IPR), Nairobi, Kenya. Endometriosis was induced in 18 adult female baboons (Papio anubis) with regular menstrual cycles and a normal pelvis; the extent of endometriosis was documented by videolaparoscopy 25 days later. The baboons were then randomly assigned to receive a single infusion of either placebo (n=7, 5 ml/kg) or c5N (n=11, 5 mg/kg). Follow-up laparoscopy was performed 25 days later to document any differences in the number, surface area and estimated volume of lesions between the two groups and between the first and the second laparoscopies in each group. Representative biopsies of at least one endometriotic lesion per baboon were obtained at the final laparoscopy.

RESULTS

Significant reductions in total surface area, estimated total volume of endometriotic lesions and both number and surface area of red lesions were observed after treatment with c5N, but not after placebo treatment, when compared to the initial laparoscopy. Conversely, a significant increase in the number of typical and red lesions was observed after placebo treatment when compared to the initial laparoscopy. Neither c5N nor placebo treatment affected the menstrual cycle.

CONCLUSION

In baboons with induced endometriosis, anti-TNF-mAb (c5N) treatment significantly reduced the extent of endometriosis, mainly due to reducing both the number and surface area of red lesions. These findings suggest that anti-TNF-mAb therapy may have therapeutic potential for active peritoneal endometriosis.

Endometriosis, recurrent miscarriage and implantation failure: is there an immunological link?

Endometriosis is more frequently diagnosed in patients with infertility than in a normal population. The goal of this paper is to give an overview of the clinical and fundamental evidence for a possible link between endometriosis and (recurrent) miscarriage or implantation failure after treatment with assisted reproductive technology. According to the literature, there is insufficient evidence for an association between endometriosis and (recurrent) miscarriage, but there is, however, epidemiological evidence to support the link between endometriosis and recurrent implantation failure after assisted reproduction. This can possibly be explained by alterations in humoral and cell-mediated immunity in women with endometriosis. Humoral immunological changes include increased formation of antibodies against endometrial antigens, anti-laminin-1 auto-antibodies and other auto-immune antibodies (e.g. antiphospholipid). Cell-mediated immunological changes include alterations in peritoneal and follicular fluid immune cells and cytokines. The possible negative effect of these immunological changes on folliculogenesis, ovulation, oocyte quality, early embryonic development and implantation in women with endometriosis suggests that infertility in endometriosis patients may be related to alterations within the follicle or oocyte, resulting in embryos with decreased ability to implant.

The effect of endometriosis, cycle stage, lymphocyte suppression and pregnancy on CA-125 levels in peritoneal fluid and serum in baboons

BACKGROUND

Serum CA-125 during the mid-follicular phase has been reported to be a clinically useful and reproducible marker in the diagnosis of advanced endometriosis in women. This study was undertaken to document the effect of the menstrual cycle, pregnancy and lymphocyte suppression on CA-125 levels in peritoneal fluid (PF) and serum in baboons with a normal pelvis and baboons with endometriosis.

METHODS

CA-125 levels were measured in 264 serum samples that were serially obtained during one menstrual cycle from 10 animals with and without endometriosis. In addition, CA-125 levels were determined in 204 archived samples (serum, n = 112 and PF, n = 92) obtained from 32 female baboons with or without endometriosis. The CA-125 assays were performed by radioimmunoassay using kits from Centocor (Malvern, PA, USA).

RESULTS

Serum CA-125 levels were at their highest during menstruation and decreased progressively during the follicular and luteal phase. PF CA-125 levels were increased during the follicular phase in baboons with a normal pelvis, but no cyclic changes were observed in animals with endometriosis. Serum CA-125 levels were unaffected by induction, lymphocyte suppression or pregnancy. Induction of endometriosis resulted in increased PF CA-125 levels, whereas lymphocyte suppression or pregnancy had no effect.

CONCLUSION

In baboons, serum CA-125 originates mainly from eutopic endometrium whereas the main source of PF CA-125 seems to be the peritoneum or ectopic endometrium. The baboon appears to be a valid model to further study the relationship between endometriosis and CA-125.