Marie-Eve Bergeron

University of Oxford, Oxford, England, United Kingdom

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Publications (15)50.13 Total impact

  • H. Rakhila · M. Bergeron · M. Daris · M. Leboeuf · M. Lemyre · C. Rheaume · M. Pouliot ·

  • Marie-Eve Bergeron · Tim Child · Muhammad Fatum ·
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    ABSTRACT: Ehlers-Danlos syndrome (EDS) is an autosomal dominant connective tissue disorder with one of the highest maternal mortality rates of any condition. Patients with the vascular type of EDS are prone to spontaneous arterial and visceral ruptures. The occurrence of these severe and life-threatening complications is increased in pregnancy. Moreover, these patients carry a 50% risk of having an affected child. However, little is known about the risks of assisted conception treatments on these patients. We present the case of a 33-year-old woman suffering from EDS with a history of repeated ruptures of arterial aneurysms and a recently ruptured aneurysm of the splenic artery during her first intracytoplasmic sperm injection (ICSI) cycle who was then advised to undergo only unstimulated cycles. After a few natural ICSI cycles, the patient safely underwent two in vitro maturation cycles with pre-implantation genetic diagnosis in our unit. An unaffected blastocyst was transferred into a surrogate host. To our knowledge, this is the first case of EDS in assisted reproduction technologies including pre-implantation genetic diagnosis to be reported in the medical literature. This case has shown that unstimulated in vitro maturation and pre-implantation genetic diagnosis can safely be offered for vascular-type Ehlers-Danlos patients.
    Human Fertility 04/2014; 17(2). DOI:10.3109/14647273.2014.903002 · 0.91 Impact Factor
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    ABSTRACT: STUDY QUESTION: Is hysterosalpingosonography (sono-HSG) an accurate test for diagnosing tubal occlusion in subfertile women and how does it perform compared with hysterosalpingography (HSG)? SUMMARY ANSWER: sono-HSG is an accurate test for diagnosing tubal occlusion and performs similarly to HSG. WHAT IS KNOWN ALREADY: sono-HSG and HSG are both short, well-tolerated outpatient procedures. However, sono-HSG has the advantage over HSG of obviating ionizing radiation and the risk of iodine allergy, being associated with a greater sensitivity and specificity in detecting anomalies of the uterine cavity and permitting concomitant visualization of the ovaries and myometrium. STUDY DESIGN, SIZE, DURATION: A systematic review and meta-analysis of studies published in any language before 14 November 2012 were performed. All studies assessing the accuracy of sono-HSG for diagnosing tubal occlusion in a subfertile female population were considered. PARTICIPANTS/MATERIALS, SETTING, METHODS: We searched Medline, Embase, Cochrane Library, Web of Science and Biosis as well as related articles, citations and reference lists. Diagnostic studies were eligible if they compared sono-HSG (±HSG) to laparoscopy with chromotubation in women suffering from subfertility. Two authors independently screened for eligibility, extracted data and assessed the quality of included studies. Risk of bias and applicability concerns were investigated according to the Quality Assessment of Diagnostic Accuracy Study (QUADAS-2). Bivariate random-effects models were used to estimate pooled sensitivity and specificity with their 95% confidence intervals (95% CIs), to generate summary receiver operating characteristic curves and to evaluate sources of heterogeneity. MAIN RESULTS AND THE ROLE OF CHANCE: Of the 4221 citations identified, 30 studies were eligible. Of the latter, 28 reported results per individual tube and were included in the meta-analysis, representing a total of 1551 women and 2740 tubes. In nine studies, all participants underwent HSG in addition to sono-HSG and laparoscopy, allowing direct comparison of the accuracy of sono-HSG and HSG. Pooled estimates of sensitivity and specificity of sono-HSG were 0.92 (95% CI: 0.82-0.96) and 0.95 (95% CI: 0.90-0.97), respectively. In nine studies (582 women, 1055 tubes), sono-HSG and HSG were both compared with laparoscopy, giving pooled estimates of sensitivity and specificity of 0.95 (95% CI: 0.78-0.99) and 0.93 (95% CI: 0.89-0.96) for sono-HSG, and 0.94 (95% CI: 0.74-0.99) and 0.92 (95% CI: 0.87-0.95) for HSG, respectively. Doppler sonography was associated with significantly greater sensitivity and specificity of sono-HSG compared with its non-use (0.93 and 0.95 versus 0.86 and 0.89, respectively, P = 0.0497). Sensitivity analysis regarding methodological quality of studies was consistent with these findings. We also found no benefit of the commercially available contrast media over saline solution in regard to the diagnostic accuracy of sono-HSG. LIMITATIONS, REASONS FOR CAUTION: Methodological quality varied greatly between studies. However, sensitivity analysis, taking methodological quality of studies into account, did not modify the results. This systematic review did not allow the distinction between distal and proximal occlusion. This could be interesting to take into account in further studies, as the performance of the test may differ for each localization. WIDER IMPLICATIONS OF THE FINDINGS: Given our findings and the known benefits of sono-HSG over HSG in the context of subfertility, sono-HSG should replace HSG in the initial workup of subfertile couples. STUDY FUNDING/COMPETING INTEREST(S): This study was funded by personal funds. There are no conflicts of interest to declare. TRIAL REGISTRATION NUMBER: This review has been registered at PROSPERO: Registration number #CRD42013003829. KEYWORDS: diagnostic, hysterosalpingography, hysterosalpingosonography, systematic review, tubal patency
    Human Reproduction 02/2014; 29(5). DOI:10.1093/humrep/deu024 · 4.57 Impact Factor
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    ABSTRACT: Hysterosalpingosonography has been suggested as a less invasive alternative to hysterosalpingography for detecting tubal occlusion among subfertile women. We aim to determine the diagnostic accuracy of hysterosalpingosonography and to compare it to hysterosalpingography.Methods/design: We will conduct a systematic review of diagnostic test accuracy. We will search Medline, Embase, Cochrane Library, Web of Science and Biosis, as well as reference lists of included studies and previous related review articles. Diagnostic studies that compared hysterosalpingosonography +/- hysterosalpingography to laparoscopy with chromotubation in women suffering from subfertility will be eligible. Two authors will independently screen for inclusion, data extraction, and quality assessment. Methodological quality will be assessed using the Quality Assessment of Diagnostic Accuracy Study 2 tool (QUADAS-2). We will use SAS 9.3 (SAS Institute Inc., Cary, NC, USA, 2011) to program bivariate random-effects models, estimate pooled sensitivity and specificity with 95% confidence intervals and to generate summary receiver operating characteristics curves. We will perform sensitivity analyses to examine the effect of differences in techniques used for hysterosalpingosonography and in methodological quality of studies. This systematic review will help to determine if hysterosalpingosonography is an adequate alternative screening test for diagnosing tubal occlusion. Accuracy of specific sono-HSG techniques may also be identified.Trial registration: This review has been registered at PROSPERO. The registration number is CRD42013003829.
    Systematic Reviews 07/2013; 2(1):50. DOI:10.1186/2046-4053-2-50
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    Marie-Eve Bergeron · Muhammad Fatum · Emmanuel Bujold ·

    Journal of obstetrics and gynaecology Canada: JOGC = Journal d'obstetrique et gynecologie du Canada: JOGC 07/2012; 34(7):616-7.
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    ABSTRACT: The expression and function of discoidin domain receptor 1 (DDR1) in T cells are still poorly explored. We have recently shown that activation of primary human T cells via their T cell receptor leads to increased expression of DDR1, which promoted their migration in three-dimensional collagen. In the present study, we provide evidence that activated T cells bind collagen through DDR1. We found that the DDR1:Fc blocking molecule significantly reduced the ability of activated T cells to bind soluble biotinylated collagen. However, DDR1:Fc had no impact on the adhesion of activated T cells to collagen and overexpression of DDR1 in Jurkat T cells did not enhance their adhesion. Together, our results indicate that DDR1 can promote T cell migration without enhancing adhesion to collagen, suggesting that it can contribute to the previously described amoeboid movement of activated T cells in collagen matrices. Our results also show that CD28, in contrast to IL-2 expression, did not costimulate the expression of DDR1 in primary human T cells. Using specific inhibitors, we demonstrated that TCR-induced expression of DDR1 in T cells is regulated by the Ras/Raf/ERK MAP Kinase and PKC pathways but not by calcium/calcineurin signaling pathway or the JNK and P38 MAP Kinases. Thus, our study provides additional insights into the physiology of DDR1 in T cells and may therefore further our understanding of the regulatory mechanisms of T cell migration.
    Journal of Cellular Biochemistry 12/2011; 112(12):3666-74. DOI:10.1002/jcb.23300 · 3.26 Impact Factor
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    ABSTRACT: Operative hysteroscopy requires the use of a distension medium and its absorption can lead to serious consequences from intravascular volume overload and water intoxication. We compared the impact of 2 types of anesthesia (general anesthesia and local anesthesia with sedation) on the absorption of glycine solution in operative hysteroscopy. A randomized controlled trial was conducted over a 17-month period. Eligible patients undergoing operative hysteroscopy for abnormal uterine bleeding were randomized in 2 groups: a general anesthesia group and a local anesthesia with sedation group. The primary outcome was the median absorption of the glycine solution (10th-90th percentile) measured with an automated tandem canister system. Secondary outcomes included incidence of absorption >1000 mL, discontinued surgery because of excessive absorption, median change in serum sodium, postoperative hyponatremia, and patients' postoperative quality of life at 24 hours (8-item Short Form Health Survey questionnaire). Nonparametric analyses (Mann-Whitney U test, χ(2) test, and Fisher exact test) were used. Of 142 eligible patients, 95 agreed to participate and were randomized. Women who underwent general anesthesia had a higher median absorption of the glycine solution (10th-90th percentile) compared with women who underwent local anesthesia with sedation (480 mL [76-1300 mL] vs 253 mL [70-728 mL]; P = 0.005). General anesthesia was also associated with a higher rate of glycine solution absorption (>1000 mL [20% vs 4%; P = 0.009]) and a more rapid rate of decrease in serum sodium (≥10 mEq/L [8% vs 0%; P = 0.005]) than local anesthesia with sedation. Postoperative quality of life measures as rated by the patients were comparable between the 2 groups. Compared with general anesthesia, local anesthesia with sedation is associated with less glycine absorption and should be considered the preferred method of anesthesia for operative hysteroscopy.
    Anesthesia and analgesia 07/2011; 113(4):723-8. DOI:10.1213/ANE.0b013e31822649d4 · 3.47 Impact Factor
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    ABSTRACT: This study aimed to determine the efficacy of cognitive training in a 10-week randomised controlled study involving 22 individuals presenting with mild cognitive impairment of the amnestic type (MCI-A). Participants in the experimental group (n = 11) learned face-name associations using a paradigm combining errorless (EL) learning and spaced retrieval (SR) whereas participants in the control group (n = 11) were trained using an errorful (EF) learning paradigm. Psycho-educational sessions on memory were also provided to all participants. After neuropsychological screening and baseline evaluations, the cognitive training took place in 6 sessions over a 3-week period. The post-training and follow-up evaluations, at one and four weeks respectively, were performed by research assistants blind to the participant's study group. The results showed that regardless of the training condition, all participants improved their capacity to learn face-name associations. A significant amelioration was also observed in participant satisfaction regarding their memory functioning and in the frequency with which the participants used strategies to support memory functions in daily life. The absence of difference between groups on all variables might be partly explained by the high variability of scores within the experimental group. Other studies are needed in order to verify the efficacy of EL learning and SR over EF in MCI-A.
    Neuropsychological Rehabilitation 06/2010; 20(3):377-405. DOI:10.1080/09602010903343012 · 1.96 Impact Factor
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    Léonie Jean · Marie-Eve Bergeron · Stéphanie Thivierge · Martine Simard ·
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    ABSTRACT: This systematic literature review addressed the efficacy of 15 cognitive intervention programs that have been tested in individuals presenting with mild cognitive impairment of the amnestic type (MCI-A) possibly at risk to progress toward dementia. MEDLINE, PsycINFO, and Current Content databases were searched using the following key terms: cognitive training, cognitive stimulation, cognitive rehabilitation, neuropsychological intervention, memory training, memory stimulation, and Mild Cognitive Impairment. The data showed statistically significant improvements at the end of training on 44% of objective measures of memory, when compared with 12% of objective measures of cognition other than memory. Statistically significant improvements after treatment were obtained on 49% of subjective measures of memory, quality of life, or mood. Samples sizes ranged from 1 to 193 patients with MCI-A but were usually < or =30. Five studies were randomized controlled trials, eight were quasiexperimental designs, and two were single-case investigations. Some programs focused only on memory, whereas other programs used multifaceted approaches targeting two or more cognitive functions. Eight were offered in groups, and seven took place on an individual basis. Recommendations to improve cognitive interventions in MCI-A are proposed, such as using large samples and a robust experimental design, as well as the implementation of a standardized cognitive training manual. Well standardized and validated direct and indirect measures of efficacy and noncognitive outcomes are also a crucial issue. A consensus meeting among all the experts working on cognitive training in this population should occur to provide guidelines to improve this treatment option.
    The American journal of geriatric psychiatry: official journal of the American Association for Geriatric Psychiatry 04/2010; 18(4):281-96. DOI:10.1097/JGP.0b013e3181c37ce9 · 4.24 Impact Factor

  • Canadian Anaesthetists? Society Journal 11/2009; 57(2):181-2. · 2.53 Impact Factor
  • Marie-Eve Bergeron · Nicole Jastrow · Normand Brassard · Mario Girard · Emmanuel Bujold ·

    Obstetrics and Gynecology 07/2009; 113(6):1371-2. DOI:10.1097/AOG.0b013e3181a861ac · 5.18 Impact Factor
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    ABSTRACT: This study aimed to evaluate the impact of anesthesia on the absorption of glycine in operative hysteroscopy. A retrospective cohort study was performed over 2 years. The absorption of glycine was compared among general anesthesia, local anesthesia with intravenous sedation, and spinal anesthesia. Multiple logistic regression analyses were performed. In all, 282 operative hysteroscopies were reviewed. The median absorption was 145 mL (10th-90th centile: 0-963 mL) for general anesthesia, 35 mL (10th-90th centile: 0-389 mL) for local anesthesia, and 100 mL (10th-90th centile: 0-500 mL) for spinal anesthesia (P = .002). In comparison with general anesthesia, local anesthesia was associated with lower rate of absorption of 500-1000 mL (4.2% vs 13.4%) and of 1000-1500 mL (3.6% vs 9.8; P = .002). Laparoscopic tubal ligation performed during the procedure was also associated with higher glycine absorption (odds ratio, 3.63; 95% confidence interval, 1.12-11.84). Local anesthesia with sedation is associated with significantly decreased glycine absorption and lower rate of absorption > 500 mL when compared with general anesthesia.
    American journal of obstetrics and gynecology 04/2009; 200(3):331.e1-5. DOI:10.1016/j.ajog.2008.12.024 · 4.70 Impact Factor
  • Marie-Eve Bergeron · Nicole Jastrow · Normand Brassard · Gaétan Paris · Emmanuel Bujold ·
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    ABSTRACT: Sonographic evaluation of the lower uterine segment was undertaken to study the degree of thinning and, thus, to predict uterine rupture. However, the best measuring technique and recommended cutoff values remain controversial. Sonographic evaluation of the lower uterine segment at 36 weeks of gestation in a 31-year-old patient with prior low transverse cesarean delivery revealed a full thickness of 3.6 mm and a myometrial layer of 1.1 mm. Nevertheless, the patient experienced a large uterine rupture during a trial of labor at term. In this case, there was a discrepancy between the full thickness and the myometrial layer, which could be representative of the lower uterine segment resistance. Such a case emphasizes the need for a consensus on sonographic measuring techniques for the prediction of uterine rupture.
    Obstetrics and Gynecology 03/2009; 113(2 Pt 2):520-2. DOI:10.1097/AOG.0b013e31818c15a7 · 5.18 Impact Factor
  • Leonie Jean · Martine Simard · Yves Turgeon · Sandra Wiederkehr · Marie-Eve Bergeron ·

    Alzheimer's and Dementia 07/2008; 4(4). DOI:10.1016/j.jalz.2008.05.1516 · 12.41 Impact Factor
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    Léonie Jean · Martine Simard · Robert van Reekum · Marie-Eve Bergeron ·
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    ABSTRACT: Considering the high risk for amnestic mild cognitive impairment (A-MCI) individuals to progress towards dementia, it is crucial to study the efficacy of innovative treatment strategies such as cognitive stimulation techniques. The present study is a case report of two individuals presenting with A-MCI who were enrolled in a memory training program. After a broad neuropsychological assessment, the two participants were trained with an errorless (EL) learning paradigm on an individual basis, twice a week, over three weeks. Two follow-up sessions took place one and five weeks after the end of the training. Results showed that the program was well tolerated and feasible, and enhanced daily memory abilities. For the second participant only, a re-evaluation of her cognitive profile was completed 23 months after her first assessment and training. In addition, EL was directly compared with a control condition using an errorful (EF) learning paradigm to teach her new names over two sessions (one session for each condition). Her improvement on the trained material supported the preliminary efficacy of EL compared with EF for learning episodic material. These results are compatible with previous work that has preliminarily demonstrated the efficacy of an EL paradigm in patients with dementia.
    Neuropsychiatric Disease and Treatment 01/2008; 3(6):975-85. · 1.74 Impact Factor

Publication Stats

177 Citations
50.13 Total Impact Points


  • 2012-2014
    • University of Oxford
      Oxford, England, United Kingdom
  • 2008-2014
    • Laval University
      • School of Psychology
      Quebec City, Quebec, Canada
  • 2013
    • Université du Québec
      Québec, Quebec, Canada
  • 2011
    • Centre Hospitalier Universitaire de Québec (CHUQ)
      Québec, Quebec, Canada