44 results on '"Petersen, Kathrine Birch"'
Search Results
2. Investigation of anti-Müllerian hormone concentrations in relation to natural conception rate and time to pregnancy
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Korsholm, Anne-Sofie, Petersen, Kathrine Birch, Bentzen, Janne Gasseholm, Hilsted, Linda Maria, Andersen, Anders Nyboe, and Hvidman, Helene Westring
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- 2018
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3. Women’s reflections on timing of motherhood:a meta-synthesis of qualitative evidence
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Temmesen, Camilla Gry, Faber Frandsen, Tove, Svarre-Nielsen, Henriette, Petersen, Kathrine Birch, Clemensen, Jane, Andersen, Heidi Lene Myglegaard, Temmesen, Camilla Gry, Faber Frandsen, Tove, Svarre-Nielsen, Henriette, Petersen, Kathrine Birch, Clemensen, Jane, and Andersen, Heidi Lene Myglegaard
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Introduction: Fertility declines with increasing age, especially in women. In recent decades women’s age at the birth of their first child has risen markedly in many countries, and an increasing number of women do not establish a family until their late-twenties to mid-thirties. Although there can be various reasons that couples experience fertility problems, advanced maternal age is the most frequent cause for difficulties with achieving pregnancy. Objective: In this meta-synthesis, we investigated reflections on timing of motherhood in women who have not yet had children. Methods: A systematic literature search of six electronic databases and manual searches of reference lists identified eight qualitative studies published between 2011 and 2018 that focused on women’s reflections on timing of motherhood. The studies were assessed with the Critical Assessment Skills Programme (CASP) quality appraisal tool. The results were synthesized using Noblit and Hare’s meta-ethnographic approach as described by Malterud. Findings: An overall theme of ‘Timing of motherhood’ and four overlapping subthemes were identified: Making a life-changing decision, The right time, Fear of regret, and Plan B. The dilemmas associated with timing of motherhood leave women of reproductive age balancing their priorities and values against a biological deadline for having children naturally or through assisted reproductive technology. Conclusions: Women of reproductive age are aware that they must make a life-changing decision as to if or when to have children, but they consider having children at ‘the right time’ to be important. Simultaneously, while some women are reluctant to have children for various reasons, they express fear that waiting too long could result in their regretting not having children later in life. Although women of reproductive age express concern about their ability to achieve pregnancy, they have limited focus on the medical risks associated with postponing motherhoo
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- 2023
4. Turning waiting time into treatment time:Weight reduction by a lifestyle intervention programme for patients with obesity before fertility treatment
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Jepsen, Ida Engberg, Petersen, Kathrine Birch, Wissing, Marie Louise Muff, Hviid, Thomas Vauvert F., Macklon, Nicholas S., Englund, Anne Lis Mikkelsen, Jepsen, Ida Engberg, Petersen, Kathrine Birch, Wissing, Marie Louise Muff, Hviid, Thomas Vauvert F., Macklon, Nicholas S., and Englund, Anne Lis Mikkelsen
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Aim To evaluate the effects of offering a clinic-driven lifestyle intervention programme in the waiting time before fertility treatment to women and men with obesity (body mass index [BMI] ≥ 30 kg/m2). Methods This prospective intervention study was conducted at a public Danish fertility clinic. All consecutive patients, both women and men, referred to the clinic between May 2020 and March 2021 with a BMI ≥ 30 kg/m2 were offered a 6-month lifestyle intervention programme consisting of monthly motivational dialogues and counselling with a certified nutritionist nurse. Weight loss maintenance was evaluated at a 1-year follow-up visit conducted 6-months after completion of the programme. The primary outcomes were absolute weight loss (kg) and relative weight loss (percent compared with weight at inclusion) upon completing the 6-month programme and at the 1-year follow-up. Secondary outcome measures were effects on biochemical metabolic markers. Results Forty-five participants were enroled in the study, of which 38 completed the 6-months lifestyle intervention programme and 33 participated in the 1-year follow-up. The participants' mean weight loss was 5.4 kg (95% confidence interval [CI]: 3.3, 7.5) after the 6-month programme (30 of 38 participants lost weight) and 4.4 kg (95% CI: 1.4, 7.3) at the 1-year follow-up compared with baseline. Previously undiagnosed metabolic conditions were revealed in 61% of the participants, including four cases (11%) of undiagnosed diabetes mellitus type 2. Conclusion A clinic-driven lifestyle intervention programme offered to patients with obesity in the waiting time for fertility treatment can successfully reduce weight in a high number of patients with stable results at 1-year follow-ups. Metabolic conditions, including diabetes mellitus type 2, are likely underdiagnosed in this group of patients, but further studies are needed., Aim To evaluate the effects of offering a clinic-driven lifestyle intervention programme in the waiting time before fertility treatment to women and men with obesity (body mass index [BMI] ≥ 30 kg/m2). Methods This prospective intervention study was conducted at a public Danish fertility clinic. All consecutive patients, both women and men, referred to the clinic between May 2020 and March 2021 with a BMI ≥ 30 kg/m2 were offered a 6-month lifestyle intervention programme consisting of monthly motivational dialogues and counselling with a certified nutritionist nurse. Weight loss maintenance was evaluated at a 1-year follow-up visit conducted 6-months after completion of the programme. The primary outcomes were absolute weight loss (kg) and relative weight loss (percent compared with weight at inclusion) upon completing the 6-month programme and at the 1-year follow-up. Secondary outcome measures were effects on biochemical metabolic markers. Results Forty-five participants were enroled in the study, of which 38 completed the 6-months lifestyle intervention programme and 33 participated in the 1-year follow-up. The participants' mean weight loss was 5.4 kg (95% confidence interval [CI]: 3.3, 7.5) after the 6-month programme (30 of 38 participants lost weight) and 4.4 kg (95% CI: 1.4, 7.3) at the 1-year follow-up compared with baseline. Previously undiagnosed metabolic conditions were revealed in 61% of the participants, including four cases (11%) of undiagnosed diabetes mellitus type 2. Conclusion A clinic-driven lifestyle intervention programme offered to patients with obesity in the waiting time for fertility treatment can successfully reduce weight in a high number of patients with stable results at 1-year follow-ups. Metabolic conditions, including diabetes mellitus type 2, are likely underdiagnosed in this group of patients, but further studies are needed.
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- 2023
5. Turning waiting time into treatment time: Weight reduction by a lifestyle intervention programme for patients with obesity before fertility treatment.
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Jepsen, Ida Engberg, Petersen, Kathrine Birch, Wissing, Marie Louise Muff, Hviid, Thomas Vauvert F., Macklon, Nicholas S., and Englund, Anne Lis Mikkelsen
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- 2023
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6. Probiotic treatment with specific lactobacilli does not improve an unfavorable vaginal microbiota prior to fertility treatment—A randomized, double-blinded, placebo-controlled trial
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Jepsen, Ida E., primary, Saxtorph, Malene Hviid, additional, Englund, Anne Lis Mikkelsen, additional, Petersen, Kathrine Birch, additional, Wissing, Marie Louise Muff, additional, Hviid, Thomas Vauvert F., additional, and Macklon, Nicholas, additional
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- 2022
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7. Does adjuvant letrozole reduce uterine peristalsis prior to fresh embryo transfer?
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Holt, Marianne Dreyer, Warzecha, Agnieszka Katarzyna, Bulow, Nathalie Soderhamn, Skouby, Sven Olaf, Englund, Anne Lis Mikkelsen, Petersen, Kathrine Birch, Macklon, Nicholas Stephen, Holt, Marianne Dreyer, Warzecha, Agnieszka Katarzyna, Bulow, Nathalie Soderhamn, Skouby, Sven Olaf, Englund, Anne Lis Mikkelsen, Petersen, Kathrine Birch, and Macklon, Nicholas Stephen
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STUDY QUESTION Does adjuvant letrozole in ovarian stimulation for IVF decrease the uterine peristalsis frequency (UPF) prior to fresh embryo transfer (ET)? SUMMARY ANSWER Adjuvant letrozole in ovarian stimulation for IVF does not reduce the UPF significantly prior to fresh ET. WHAT IS KNOWN ALREADY Throughout the cycle, uterine peristalsis aids spermatozoa transport to the fallopian tube and may affect implantation. At fresh ET, UPF is negatively correlated with implantation and clinical pregnancy rates and is believed to be modulated by oestradiol and progesterone. High levels of oestradiol, from multiple follicular development, in ovarian stimulation have been reported to increase UPF, whereas progesterone is considered to be an utero-relaxant. The influence of androgens is unclear. Co-treatment with letrozole during gonadotropin ovarian stimulation limits the supra-physiological oestradiol rise and may therefore reduce UPF prior to fresh ET. STUDY DESIGN, SIZE, DURATION This study was carried out on subjects participating in a single-centre double-blinded randomized controlled trial of the impact of letrozole on follicle development and endocrine profiles, and investigated the impact of adjuvant letrozole in ovarian stimulation for IVF on UPF prior to fresh ET and the correlations of UPF with endocrine markers. Between 2016 and 2017, 39 women expected to be normal responders were randomized to co-treatment with letrozole or placebo. Of these, 33 women completed this element of the study. The study was carried out according to the Helsinki Declaration and the ICH-Good-Clinical-Practice. PARTICIPANTS/MATERIALS, SETTING, METHODS Eligible women were randomized 1:1 to adjuvant treatment with letrozole 5 mg/day or placebo in an antagonist protocol using a fixed dose of recombinant (r) FSH 150 IU/day. Final maturation was triggered with hCG 6500 IU and luteal support with vaginal progesterone was administered from the day following oocyte aspiration. Less than 1 h pr
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- 2022
8. Probiotic treatment with specific lactobacilli does not improve an unfavorable vaginal microbiota prior to fertility treatment-A randomized, double-blinded, placebo-controlled trial
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Jepsen, Ida E, Saxtorph, Malene Hviid, Englund, Anne Lis Mikkelsen, Petersen, Kathrine Birch, Wissing, Marie Louise Muff, Hviid, Thomas Vauvert F, Macklon, Nicholas, Jepsen, Ida E, Saxtorph, Malene Hviid, Englund, Anne Lis Mikkelsen, Petersen, Kathrine Birch, Wissing, Marie Louise Muff, Hviid, Thomas Vauvert F, and Macklon, Nicholas
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OBJECTIVE: To investigate whether treatment with proprietary lactobacilli-loaded vaginal capsules improves an unfavorable vaginal microbiome diagnosed using a commercially available test and algorithm.DESIGN: A randomized, double-blinded, placebo-controlled study was conducted in 74 women prior to undergoing fertility treatment at a single university fertility clinic between April 2019 and February 2021. The women were randomly assigned in a 1:1 ratio to receive one vaginal capsule per day for 10 days containing either a culture of more than 10 8 CFU of Lactobacillus gasseri and more than 10 8 CFU Lactobacillus rhamnosus (lactobacilli group) or no active ingredient (placebo group). Vaginal swabs for microbiota analysis were taken at enrollment, after treatment and in the cycle following treatment. PARTICIPANTS AND METHODS: Women aged 18-40 years who prior to fertility treatment were diagnosed with an unfavorable vaginal microbiota, characterized by either a low relative load of Lactobacillus or a high proportion of disrupting bacteria using the criteria of the IS-pro™ diagnostic system (ARTPred, Amsterdam, the Netherlands), were enrolled in the study. The primary outcome measure was the proportion of women with improvement of the vaginal microbiota after intervention. RESULTS: The vaginal microbiota improved after intervention in 34.2% of all participants (lactobacilli group 28.9%, placebo group 40.0%), with no significant difference in the improvement rate between the lactobacilli and placebo groups, RR = 0.72 (95% CI 0.38-1.38).CONCLUSION: This study indicates that administering vaginal probiotics may not be an effective means of modulating the vaginal microbiome for clinical purposes in an infertile population. However, a spontaneous improvement rate of 34.2% over a period of one to three months, confirming the dynamic nature of the vaginal microbiota, indicates that a strategy of postponing further IVF treatment to await microbiota
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- 2022
9. The importance of the 'family clock':women's lived experience of fertility decision-making 6 years after attending the Fertility Assessment and Counselling Clinic
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Koert, Emily, Sylvest, Randi, Vittrup, Ida, Hvidman, Helene Westring, Petersen, Kathrine Birch, Boivin, Jacky, Nyboe Andersen, Anders, Schmidt, Lone, Koert, Emily, Sylvest, Randi, Vittrup, Ida, Hvidman, Helene Westring, Petersen, Kathrine Birch, Boivin, Jacky, Nyboe Andersen, Anders, and Schmidt, Lone
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This study explored women's lived experience of making fertility decisions six years after attending the Fertility Assessment and Counselling (FAC) clinic in Copenhagen, Denmark, which is a personalised fertility awareness intervention. We conducted a qualitative interview study with 24 women who attended the FAC clinic 6 years earlier. Interviews were semi-structured and broadly examined the women's perceptions and experience of the intervention during follow-up. Data was analysed using a phenomenological framework and themes were identified related to women's experience of making fertility decisions after attending the FAC clinic. The overarching theme regarding the women's lived experience of making fertility decisions after attending the FAC clinic was: Fertility decisions were guided by the 'family clock'. There were four themes: (i) Deciding to 'get started' by attending the FAC clinic; (ii) Sense of making informed and empowered decisions; (iii) Influence of partner status on fertility decisions; and (iv) Decisions dictated by circumstance over preference and knowledge. At follow-up, the majority (21 women, 88%) had become parents. More than half of the women said that they had not achieved their desired family size. Consideration of women's 'family clock' is necessary in personalised fertility awareness interventions to enable women to achieve their family goals.
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- 2022
10. The importance of the 'family clock': women's lived experience of fertility decision-making 6 years after attending the Fertility Assessment and Counselling Clinic.
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Koert, Emily, Sylvest, Randi, Vittrup, Ida, Hvidman, Helene Westring, Petersen, Kathrine Birch, Boivin, Jacky, Nyboe Andersen, Anders, and Schmidt, Lone
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FERTILITY clinics ,PATIENT decision making ,TIME ,RESEARCH methodology ,INTERVIEWING ,EXPERIENCE ,PREGNANCY outcomes ,QUALITATIVE research ,PHENOMENOLOGY ,FERTILITY ,DESCRIPTIVE statistics ,ATTITUDES toward pregnancy ,THEMATIC analysis - Abstract
This study explored women's lived experience of making fertility decisions six years after attending the Fertility Assessment and Counselling (FAC) clinic in Copenhagen, Denmark, which is a personalised fertility awareness intervention. We conducted a qualitative interview study with 24 women who attended the FAC clinic 6 years earlier. Interviews were semi-structured and broadly examined the women's perceptions and experience of the intervention during follow-up. Data was analysed using a phenomenological framework and themes were identified related to women's experience of making fertility decisions after attending the FAC clinic. The overarching theme regarding the women's lived experience of making fertility decisions after attending the FAC clinic was: Fertility decisions were guided by the 'family clock'. There were four themes: (i) Deciding to 'get started' by attending the FAC clinic; (ii) Sense of making informed and empowered decisions; (iii) Influence of partner status on fertility decisions; and (iv) Decisions dictated by circumstance over preference and knowledge. At follow-up, the majority (21 women, 88%) had become parents. More than half of the women said that they had not achieved their desired family size. Consideration of women's 'family clock' is necessary in personalised fertility awareness interventions to enable women to achieve their family goals. [ABSTRACT FROM AUTHOR]
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- 2022
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11. DOES ADJUVANT LETROZOLE DURING OVARIAN STIMULATION FOR IVF REDUCE THE NEED FOR LUTEAL SUPPORT? A RANDOMIZED CONTROLLED TRIAL
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Holt, Marianne Dreyer, primary, Skouby, Sven Olaf, additional, Warzecha, Agnieszka, additional, Bülow, Nathalie Søderhamn, additional, Englund Mikkelsen, Anne Lis, additional, Petersen, Kathrine Birch, additional, and Macklon, Nick, additional
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- 2021
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12. Individual fertility assessment and pro-fertility counselling; should this be offered to women and men of reproductive age?
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Hvidman, Helene W., Petersen, Kathrine Birch, Larsen, Elisabeth C., Macklon, Kirsten Tryde, Pinborg, Anja, and Nyboe Andersen, Anders
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- 2015
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13. The Impact of Suppressing Estradiol During Ovarian Stimulation on the Unsupported Luteal Phase: A Randomized Controlled Trial.
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Holt, Marianne Dreyer, Skouby, Sven Olaf, Bülow, Nathalie Søderhamn, Mikkelsen Englund, Anne Lis, Petersen, Kathrine Birch, and Macklon, Nicholas Stephen
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SEX hormones ,INDUCED ovulation ,ESTRADIOL - Abstract
Context: Supraphysiological sex steroid levels at the follicular-luteal phase transition are implicated as the primary cause of luteal insufficiency after ovarian stimulation (OS) for in vitro fertilization. Objective: We aimed to determine the impact of suppressing estradiol levels during OS of multiple dominant follicles on the unsupported luteal phase and markers of endometrial maturation. Methods: At 2 university hospitals, 25 eligible egg donors were randomized to undergo OS using exogenous gonadotropins with or without adjuvant letrozole 5 mg/day. Final oocyte maturation was triggered with a GnRH agonist. No luteal support was provided. The primary outcome was the duration of the luteal phase. Secondary outcomes were luteal phase hormone profiles and the endometrial transcriptomic signature 5 days after oocyte pick up (OPU + 5). Results: The median (interquartile range [IQR]) luteal phase duration was 8.0 (6.8-11.5) days compared with 5.0 (5.0-6.8) days in the intervention and control group, respectively (P < 0.001). Estradiol levels were effectively suppressed in the letrozole group with a median of 0.86 (0.23-1.24) nmol/L at OPU compared to 2.82 (1.34-3.44) nmol/L in the control group. Median (IQR) progesterone levels at OPU + 5 were 67.05 (15.67-101.75) nmol/L in the letrozole group vs 2.27 (1.05-10.70) nmol/L in the control group (P < 0.001). In the letrozole group, 75% of participants revealed endometrial transcriptomic signatures interpreted as post-receptive. In the control group, 40% were post-receptive and 50% noninformative. Conclusion: Suppressing estradiol levels in the follicular phase with adjuvant letrozole significantly reduces the disruption of the unsupported luteal phase after OS. [ABSTRACT FROM AUTHOR]
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- 2022
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14. The importance of the ‘family clock’: women’s lived experience of fertility decision-making 6 years after attending the Fertility Assessment and Counselling Clinic
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Koert, Emily, primary, Sylvest, Randi, additional, Vittrup, Ida, additional, Hvidman, Helene Westring, additional, Petersen, Kathrine Birch, additional, Boivin, Jacky, additional, Nyboe Andersen, Anders, additional, and Schmidt, Lone, additional
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- 2021
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15. Using social media for qualitative health research in danish women of reproductive age:Online focus group study on facebook
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Temmesen, Camilla Gry, Nielsen, Henriette Svarre, Andersen, Heidi Lene Myglegård, Petersen, Kathrine Birch, Clemensen, Jane, Temmesen, Camilla Gry, Nielsen, Henriette Svarre, Andersen, Heidi Lene Myglegård, Petersen, Kathrine Birch, and Clemensen, Jane
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Background: Social media platforms provide new possibilities within health research. With Facebook being the largest social network in the world, it constitutes a potential platform for recruitment and data collection from women of reproductive age. Women in Denmark and in other Western countries postpone motherhood and risk infertility due to their advanced age when they try to conceive. To date, no study has explored Danish women’s reflections on the timing of motherhood within a social media setting. Objective: The aim of this study was to explore the challenges and opportunities of using Facebook as a platform for qualitative health research in Danish women of reproductive age. Methods: This study was a qualitative study based on 3 online focus groups on Facebook with 26 Danish women of reproductive age discussing the timing of motherhood in January 2020. Results: Conducting online focus groups on Facebook was successful in this study as the web-based approach was found suitable for developing qualitative data with women of reproductive age and made recruitment easy and free of charge. All participants found participating in an online focus group to be a positive experience. More than half of the women participating in the online focus groups found it advantageous to meet on Facebook instead of meeting face-to-face. Conclusions: Conducting online focus groups on Facebook is a suitable method to access qualitative data from women of reproductive age. Participants were positive toward being a part of an online focus group. Online focus groups on social media have the potential to give women of reproductive age a voice in the debate of motherhood.
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- 2021
16. Ovarian reserve markers after discontinuing long-term use of combined oral contraceptives
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Landersoe, Selma Kloeve, Petersen, Kathrine Birch, Sorensen, Anne Lyngholm, Larsen, Elisabeth Clare, Martinussen, Torben, Lunding, Stine Aagaard, Kroman, Mie Stougaard, Nielsen, Henriette Svarre, Andersen, Anders Nyboe, Landersoe, Selma Kloeve, Petersen, Kathrine Birch, Sorensen, Anne Lyngholm, Larsen, Elisabeth Clare, Martinussen, Torben, Lunding, Stine Aagaard, Kroman, Mie Stougaard, Nielsen, Henriette Svarre, and Andersen, Anders Nyboe
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- 2020
17. Assessing endometrial receptivity after recurrent implantation failure:a prospective controlled cohort study
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Saxtorph, Malene Hviid, Hallager, Trine, Persson, Gry, Petersen, Kathrine Birch, Eriksen, Jens Ole, Larsen, Lise Grupe, Hviid, Thomas Vauvert, Macklon, Nick, Saxtorph, Malene Hviid, Hallager, Trine, Persson, Gry, Petersen, Kathrine Birch, Eriksen, Jens Ole, Larsen, Lise Grupe, Hviid, Thomas Vauvert, and Macklon, Nick
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Research question: What is the prevalence of disrupted markers of endometrial function among women experiencing recurrent implantation failure (RIF), and does the prevalence differ from a control cohort? Design: Prospective controlled cohort study. In total, 86 women with a history of RIF and 37 women starting their first fertility treatment were recruited for this study. Endometrial and blood profiling were carried out in a hormone-substituted cycle using oestradiol and progesterone. Endometrial biopsies were analysed by histology, immune cell profiling, and the endometrial receptivity array (ERA®) test (Igenomix, Valencia, Spain). The vaginal microbiome was analysed using a NGS-based technology (ArtPRED, Amsterdam, the Netherlands). Blood tests included oestradiol, progesterone, prolactin, thyroid-stimulating hormone, vitamin D and anti-phospholipid antibody levels. Results: Patients who had experienced RIF produced a range of test abnormalities. Compared with controls, women with RIF had a higher prevalence of chronic endometritis (24% versus 6%), a lower vitamin D level and a borderline lower progesterone level. Women who had experienced RIF had a more favourable vaginal microbiome compared with controls. Although the RIF cohort was older than the controls (mean age 33.8 years versus 30.2 years), no differences between the groups were observed in immune cell profiling and the ERA test. Conclusion: These data demonstrate that a single test or treatment for the endometrial factor in RIF is unlikely to be clinically effective. Diagnosing the endometrium in women with RIF permits targeted rather than blind interventions. Relative vitamin D deficiency, lower mid-luteal progesterone and chronic endometritis are ready targets for treatment. Understanding the role and treatment of an unfavourable vaginal microbiome in RIF needs further investigation.
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- 2020
18. Ovarian reserve markers and endocrine profile during oral contraception:Is there a link between the degree of ovarian suppression and AMH?
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Landersoe, Selma Kloeve, Larsen, Elisabeth Clare, Forman, Julie Lyng, Petersen, Kathrine Birch, Kroman, Mie Stougaard, Frederiksen, Hanne, Juul, Anders, Nohr, Bugge, Lossl, Kristine, Nielsen, Henriette Svarre, Andersen, Anders Nyboe, Landersoe, Selma Kloeve, Larsen, Elisabeth Clare, Forman, Julie Lyng, Petersen, Kathrine Birch, Kroman, Mie Stougaard, Frederiksen, Hanne, Juul, Anders, Nohr, Bugge, Lossl, Kristine, Nielsen, Henriette Svarre, and Andersen, Anders Nyboe
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- 2020
19. Assessing endometrial receptivity after recurrent implantation failure: a prospective controlled cohort study
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Saxtorph, Malene Hviid, primary, Hallager, Trine, additional, Persson, Gry, additional, Petersen, Kathrine Birch, additional, Eriksen, Jens Ole, additional, Larsen, Lise Grupe, additional, Hviid, Thomas Vauvert, additional, and Macklon, Nick, additional
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- 2020
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20. Preparation of the endometrium and timing of blastocyst transfer in modified natural cycle frozen-thawed embryo transfers (mNC-FET): a study protocol for a randomised controlled multicentre trial
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Saupstad, Marte, primary, Freiesleben, Nina La Cour, additional, Skouby, Sven Olaf, additional, Andersen, Lars Franch, additional, Knudsen, Ulla Breth, additional, Petersen, Kathrine Birch, additional, Husth, Merete, additional, Egeberg, Anne, additional, Petersen, Morten Rønn, additional, Ziebe, Søren, additional, Andersen, Anders Nyboe, additional, Løssl, Kristine, additional, and Pinborg, Anja, additional
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- 2019
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21. Preparation of the endometrium and timing of blastocyst transfer in modified natural cycle frozen-thawed embryo transfers (mNC-FET):A study protocol for a randomised controlled multicentre trial
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Saupstad, Marte, Freiesleben, Nina La Cour, Skouby, Sven Olaf, Andersen, Lars Franch, Knudsen, Ulla Breth, Petersen, Kathrine Birch, Husth, Merete, Egeberg, Anne, Petersen, Morten Rønn, Ziebe, Søren, Andersen, Anders Nyboe, Løssl, Kristine, Pinborg, Anja, Saupstad, Marte, Freiesleben, Nina La Cour, Skouby, Sven Olaf, Andersen, Lars Franch, Knudsen, Ulla Breth, Petersen, Kathrine Birch, Husth, Merete, Egeberg, Anne, Petersen, Morten Rønn, Ziebe, Søren, Andersen, Anders Nyboe, Løssl, Kristine, and Pinborg, Anja
- Abstract
Introduction Despite the high number of frozen embryo transfer (FET) cycles being conducted (190 000 cycles/year) in Europe, the timing of blastocyst transfer and the use of luteal phase progesterone support in modified natural cycle FET (mNC-FET) in assisted reproductive technologies are controversial. In mNC-FET, the timing of blastocyst warming and transfer is determined according to the time of implantation in a natural cycle, aiming to reach blastocyst endometrial synchronicity. However, the optimal day of blastocyst transfer following ovulation trigger is not determined. In addition, the value of luteal phase support to maintain the endometrium remains uncertain. Thus, there is a need to identify the optimal timing of blastocyst warming and transfer and the effect of luteal phase support in a randomised controlled trial design. The aim of this randomised controlled trial is to investigate if progesterone supplementation from the early luteal phase until gestational age 8 weeks is superior to no progesterone supplementation and to assess if blastocyst warming and transfer 6 days after ovulation trigger is superior to 7 days after ovulation trigger in mNC-FET with live birth rates as the primary outcome. Methods and analysis Multicentre, randomised, controlled, single-blinded trial including 604 normo-ovulatory women aged 18-41 years undergoing mNC-FET with a high-quality blastocyst originating from their first to third in vitro fertilisation/intracytoplasmic sperm injection cycle. Participants are randomised (1:1:1:1) to either luteal phase progesterone or no luteal phase progesterone and to blastocyst warming and transfer on day 6 or 7 after human chorionic gonadotropin trigger. Only single blastocyst transfers will be performed. Ethics and dissemination The study is approved by the Danish Committee on Health Research Ethics (H-18025839), the Danish Medicines Agency (2018061319) and the Danish Data Protection Agency (VD-2018-381). The results of the study w
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- 2019
22. Concerns on future fertility among users and past-users of combined oral contraceptives: a questionnaire survey
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Landersø, Selma Kløve, Petersen, Kathrine Birch, Vassard, Ditte, Larsen, Elisabeth Clare, Nielsen, Henriette Svarre, Pinborg, Anja, Nøhr, Bugge, Andersen, Anders Nyboe, Schmidt, Lone, Landersø, Selma Kløve, Petersen, Kathrine Birch, Vassard, Ditte, Larsen, Elisabeth Clare, Nielsen, Henriette Svarre, Pinborg, Anja, Nøhr, Bugge, Andersen, Anders Nyboe, and Schmidt, Lone
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- 2019
23. Concerns on future fertility among users and past-users of combined oral contraceptives: a questionnaire survey
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Landersoe, Selma Kloeve, primary, Petersen, Kathrine Birch, additional, Vassard, Ditte, additional, Larsen, Elisabeth Clare, additional, Nielsen, Henriette Svarre, additional, Pinborg, Anja, additional, Nøhr, Bugge, additional, Nyboe Andersen, Anders, additional, and Schmidt, Lone, additional
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- 2019
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24. Questionnaire on Knowledge and Concerns of Various Aspects of Fertility with Respect to Combined Oral Contraceptive Usage
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Landersoe, Selma Kloeve, primary, Petersen, Kathrine Birch, additional, Vassard, Ditte, additional, Larsen, Elisabeth Clare, additional, Nielsen, Henriette Svarre, additional, Pinborg, Anja, additional, Nøhr, Bugge, additional, Andersen, Anders Nyboe, additional, and Schmidt, Lone, additional
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- 2019
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25. Men's expectations and experiences of fertility awareness assessment and counseling
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Sylvest, Randi, Koert, Emily, Vittrup, Ida, Petersen, Kathrine Birch, Hvidman, Helene W., Hald, Finn, Schmidt, Lone, Sylvest, Randi, Koert, Emily, Vittrup, Ida, Petersen, Kathrine Birch, Hvidman, Helene W., Hald, Finn, and Schmidt, Lone
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- 2018
26. The Fertility Assessment and Counselling Clinic - does the concept work?:A prospective two year follow up study of 519 women
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Petersen, Kathrine Birch, Maltesen, Thomas, Forman, Julie L., Sylvest, Randi, Pinborg, Anja, Larsen, Elisabeth C., Macklon, Kirsten T., Nielsen, Henriette S., Hvidman, Helene W., Andersen, Anders Nyboe, Petersen, Kathrine Birch, Maltesen, Thomas, Forman, Julie L., Sylvest, Randi, Pinborg, Anja, Larsen, Elisabeth C., Macklon, Kirsten T., Nielsen, Henriette S., Hvidman, Helene W., and Andersen, Anders Nyboe
- Abstract
INTRODUCTION: The Fertility Assessment and Counselling (FAC) Clinic was initiated to provide women information about their current fertility status to prevent infertility and smaller families than desired. The aim was to study the predictive value of a risk assessment score based on known fertility risk factors in terms of time to pregnancy.MATERIAL AND METHODS: Prospective cohort study of the first 570 women attending the FAC Clinic from 2011 to 2013 at Rigshospitalet, Denmark. A consultation included: risk assessment score sheet with items on infertility risk factors, anti Müllerian hormone and ultrasound. The risk score was categorized as low, medium or high. After two years an email-based questionnaire was distributed regarding subsequent pregnancies.RESULTS: The follow up questionnaire was answered by 519 women (91.1%). The mean age was 35 years and 38% were single at inclusion. The majority (67.8%, 352/519) tried to conceive within two years after attending the FAC Clinic. At follow up 73.6% (259/352) had achieved a pregnancy, 21% (74/352) were still trying and 5.4% (19/352) had given up. Two thirds (65%) with only low risk scores conceived spontaneously within 12 months, while this figure was only 32% for women with at least one high risk score (n=82). Accordingly, presence of at least one high risk score reduced the odds of achieving a pregnancy within 12 months by 75% (OR 0.25, 95%CI; 0.12-0.52).CONCLUSION: The new FAC Clinic concept seems usable and offers a tool for fertility experts to guide women on how to fulfil their reproductive life-plan. This article is protected by copyright. All rights reserved.
- Published
- 2017
27. Fertilitetsrådgivning er et nyt koncept
- Author
-
Petersen, Kathrine Birch, Andersen, Anders Nyboe, Petersen, Kathrine Birch, and Andersen, Anders Nyboe
- Abstract
The Fertility Assessment and Counselling Clinic was initiated in 2011 as an analogue to the family planning clinics in the 1970s, but with a pro-fertility aim. The idea was to provide individual assessment of fertility risk factors, ovarian reserve and sperm concentration to help women and men to fulfil their reproductive life plan. Fertility screening on an individual level is a new concept, and the Fertility Assessment and Counselling Clinic is the first of its kind. The aim of the clinic is to reduce the need for fertility treatments and to prevent involuntary childlessness.
- Published
- 2016
28. Potentially avoidable peripartum hysterectomies in Denmark:A population based clinical audit
- Author
-
Colmorn, Lotte Berdiin, Krebs, Lone, Langhoff-Roos, Jens, Jakobsson, Maija, Tapper, Anna Maija, Gissler, Mika, Lindqvist, Pelle, Thurn, Lars, Källen, Karin, Gottvall, Karin, Klungsoyr, Kari, Børdahl, Per E., Bjarnadottir, Ragnheidur I., Petersen, Kathrine Birch, Colmorn, Lotte B., Colmorn, Lotte Berdiin, Krebs, Lone, Langhoff-Roos, Jens, Jakobsson, Maija, Tapper, Anna Maija, Gissler, Mika, Lindqvist, Pelle, Thurn, Lars, Källen, Karin, Gottvall, Karin, Klungsoyr, Kari, Børdahl, Per E., Bjarnadottir, Ragnheidur I., Petersen, Kathrine Birch, and Colmorn, Lotte B.
- Abstract
Objective: To audit the clinical management preceding peripartum hysterectomy and evaluate if peripartum hysterectomies are potentially avoidable and by which means. Material and Methods: We developed a structured audit form based on explicit criteria for the minimal mandatory management of the specific types of pregnancy and delivery complications leading to peripartum hysterectomy. We evaluated medical records of the 50 Danish women with peripartum hysterectomy identified in the Nordic Obstetric Surveillance Study 2009-2012 and made short narratives of all cases. Results: The most frequent indication for hysterectomy was hemorrhage. The two main initial causes were abnormally invasive placenta (26%) and lacerations (26%). Primary atony was third and occurred in 20%. Before hysterectomy another 26% had secondary atony following complications such as lacerations, retained placental tissue or coagulation defects. Of the 50 cases, 24% were assessed to be avoidable and 30% potentially avoidable. Hysterectomy following primary and secondary atony was assessed to be avoidable in 4/10 and 4/13 cases, respectively. Early sufficient suturing of lacerations and uterine ruptures, as well as a more widespread use of intrauterine balloons alone or in combination with uterine compression sutures (the sandwich model), could presumably have prevented about one fourth of the peripartum hysterectomies. Conclusion: More than 50% of peripartum hysterectomies seem to be avoidable by simple measures. In order to minimize the number of unnecessary peripartum hysterectomies, obstetricians and anesthesiologists should investigate individual cases by structured clinical audit, and disseminate and discuss the results for educational purposes. An international collaboration is warranted to strengthen our recommendations and reveal if they are generally applicable.
- Published
- 2016
29. Cesarean scar pregnancy:a systematic review of treatment studies
- Author
-
Petersen, Kathrine Birch, Hoffmann, Elise, Rifbjerg Larsen, Christian, Svarre Nielsen, Henriette, Petersen, Kathrine Birch, Hoffmann, Elise, Rifbjerg Larsen, Christian, and Svarre Nielsen, Henriette
- Abstract
OBJECTIVE: To study treatment modalities for cesarean scar pregnancies (CSPs), focusing on efficacy and complications in relation to study quality.DESIGN: Systematic review.SETTING: Not applicable.PATIENT(S): A total of 2,037 women with CSP.INTERVENTION(S): Review of MEDLINE, EMBASE, and Cochrane Library to find studies including five or more women. Data were extracted on primary treatment modality/efficacy, complications, and future fertility. The level of evidence was categorized according to Oxford Centre for Evidence-based Medicine guidelines. Quality was assessed using The Cochrane Collaboration's Risk of Bias Tools for Randomized Controlled Trials and the modified Delphi techniques for case series. Meta-analysis was impossible owing to multifarious treatments.MAIN OUTCOME MEASURE(S): Successful first-line treatment. Complications were hysterectomy, laparotomy, bleeding >1,000 mL, or blood transfusion.RESULT(S): Fifty-two studies were included: four randomized, controlled trials and 48 case series. Fifteen of the 52 analyzed studies were scored as high quality. Treatment modalities were condensed to 14 different approaches. Combining study quality, level of evidence, efficacy, and safety, five approaches for treating CSP are recommended, depending on availability, severity of patient symptoms, and surgical skills: [1] resection through a transvaginal approach, [2] laparoscopy, [3] uterine artery embolization in combination with dilatation and curettage and hysteroscopy, [4] uterine artery embolization in combination with dilatation and curettage, and [5] hysteroscopy.CONCLUSION(S): This review recommends treatment options for CSP in clinical practice, based on efficacy and safety. The literature supports an interventional rather than medical approach. Present recommendations are primarily based on case series. Multicenter, well-designed studies are needed to draw definite conclusions on how to treat CSP.
- Published
- 2016
30. Forebyggelse af nedsat frugtbarhed
- Author
-
Nielsen, Henriette Svarre, Schmidt, Lone, Andersen, Anders Nyboe, Petersen, Kathrine Birch, Gyrd-Hansen, Dorte, Jensen, Tina Kold, Juul, Anders, Knudsen, Lisbeth B., Nielsen, Henriette Svarre, Schmidt, Lone, Andersen, Anders Nyboe, Petersen, Kathrine Birch, Gyrd-Hansen, Dorte, Jensen, Tina Kold, Juul, Anders, and Knudsen, Lisbeth B.
- Published
- 2016
31. Attitudes towards family formation in cohabiting and single childless women in their mid- to late thirties
- Author
-
Petersen, Kathrine Birch, Lykke-Sylvest, Randi, Andersen, Anders Nyboe, Pinborg, Anja, Hvidman, Helene Westring, Schmidt, Lone, Petersen, Kathrine Birch, Lykke-Sylvest, Randi, Andersen, Anders Nyboe, Pinborg, Anja, Hvidman, Helene Westring, and Schmidt, Lone
- Abstract
This study aimed to explore attitudes towards family formation in single or cohabiting childless women of advanced age. The design comprised semi-structured qualitative interviews of 20 women aged 34–39 years attending the Fertility Assessment and Counselling Clinic, Rigshospitalet, Copenhagen. A sample of 10 single women and 10 cohabiting women was chosen with equal distribution of postgraduate education length. Data were analysed using content analysis following the method of Graneheim and Lundman and consolidated criteria for reporting qualitative research (COREQ). The general attitude towards family formation was characterized by a fear of the consequences of choosing motherhood on one hand, and a ‘ticking biological clock’ and a wish to establish a nuclear family on the other. The women idealized the perception of perfect mothering in terms of uncompromising expectations of child rearing and showed an increasing awareness of solo motherhood as a possible solution to advanced age, the wish of a child and single status compared to earlier studies. Our study contributes to knowledge and understanding of personal considerations related to childbearing in nullipara women in their mid- to late 30s and may be useful in a fertility assessment and counselling setting.
- Published
- 2016
32. Individual fertility assessment and pro-fertility counselling; should this be offered to women and men of reproductive age?
- Author
-
Hvidman, Helene W, Petersen, Kathrine Birch, Larsen, Elisabeth C, Macklon, Kirsten Tryde, Pinborg, Anja, Nyboe Andersen, Anders, Hvidman, Helene W, Petersen, Kathrine Birch, Larsen, Elisabeth C, Macklon, Kirsten Tryde, Pinborg, Anja, and Nyboe Andersen, Anders
- Abstract
During the 1970s new contraceptive options developed and legal abortions became accessible. Family planning clinics targeting young women and men provided advice and assistance on contraception. Today, delayed childbearing, low total fertility rates and increasing use of social oocyte freezing create a need for pro-fertility initiatives. Three years ago we established a new separate unit: The Fertility Assessment and Counselling (FAC) clinic. The FAC clinic offers free individual counselling based on a clinical assessment including measurement of serum anti-Müllerian hormone and ovarian and pelvic sonography in women, sperm analysis in men, and a review of reproductive risk factors in both sexes. The FAC clinic includes a research programme with the goal to improve prediction and protection of fertility. Our first proposition is that clinics for individual assessment and counselling need to be established, as there is a strong unmet demand among women and men to obtain: (i) knowledge of fertility status, (ii) knowledge of reproductive lifespan (women) and (iii) pro-fertility advice. Addressing these issues is often more challenging than treating infertile patients. Therefore, we propose that fertility assessment and counselling should be developed by specialists in reproductive medicine. There are two main areas of concern: As our current knowledge on reproductive risk factors is primarily based on data from infertile patients, the first concern is how precisely we are able to forecast future reproductive problems. Predictive parameters from infertile couples, such as duration of infertility, are not applicable, diagnostic factors like tubal patency are unavailable and other parameters may be unsuitable when applied to the general population. Therefore, strict validation of reproductive forecasting in women and men from the general population is crucial. The second main concern is that we may turn clients into patients. Screening including reproductive forecasting m
- Published
- 2015
33. Petersen, Kathrine Birch
- Author
-
Petersen, Kathrine Birch and Petersen, Kathrine Birch
- Published
- 2015
34. Potentially Avoidable Peripartum Hysterectomies in Denmark: A Population Based Clinical Audit
- Author
-
Colmorn, Lotte Berdiin, Krebs, Lone, Langhoff-Roos, Jens, Jakobsson, Maija, Tapper, Anna Maija, Gissler, Mika, Lindqvist, Pelle, Thurn, Lars, Källen, Karin, Gottvall, Karin, Klungsoyr, Kari, Børdahl, Per E., Bjarnadottir, Ragnheidur I., Petersen, Kathrine Birch, and Colmorn, Lotte B.
- Subjects
Clinical audit ,Embryology ,Placenta Diseases ,Placenta ,Maternal Health ,Denmark ,medicine.medical_treatment ,lcsh:Medicine ,Pathology and Laboratory Medicine ,Vascular Medicine ,Cohort Studies ,Labor and Delivery ,0302 clinical medicine ,Obstetrics and gynaecology ,Pregnancy ,Medicine and Health Sciences ,030212 general & internal medicine ,Reproductive System Procedures ,lcsh:Science ,reproductive and urinary physiology ,030219 obstetrics & reproductive medicine ,Multidisciplinary ,Obstetrics ,Uterine Inertia ,Medical record ,Gynecologic Surgery ,Obstetrics and Gynecology ,Uterine rupture ,Obstetric Procedures ,Female ,Anatomy ,medicine.symptom ,Research Article ,Adult ,medicine.medical_specialty ,Surgical and Invasive Medical Procedures ,Hemorrhage ,Hysterectomy ,03 medical and health sciences ,Signs and Symptoms ,Uterine Rupture ,Diagnostic Medicine ,Atony ,Peripartum Period ,medicine ,Humans ,Gynecology ,Clinical Audit ,Surgical Excision ,Cesarean Section ,business.industry ,lcsh:R ,Postpartum Hemorrhage ,Uterus ,Reproductive System ,Biology and Life Sciences ,medicine.disease ,Birth ,Women's Health ,lcsh:Q ,business ,Developmental Biology - Abstract
Objective To audit the clinical management preceding peripartum hysterectomy and evaluate if peripartum hysterectomies are potentially avoidable and by which means. Material and Methods We developed a structured audit form based on explicit criteria for the minimal mandatory management of the specific types of pregnancy and delivery complications leading to peripartum hysterectomy. We evaluated medical records of the 50 Danish women with peripartum hysterectomy identified in the Nordic Obstetric Surveillance Study 2009–2012 and made short narratives of all cases. Results The most frequent indication for hysterectomy was hemorrhage. The two main initial causes were abnormally invasive placenta (26%) and lacerations (26%). Primary atony was third and occurred in 20%. Before hysterectomy another 26% had secondary atony following complications such as lacerations, retained placental tissue or coagulation defects. Of the 50 cases, 24% were assessed to be avoidable and 30% potentially avoidable. Hysterectomy following primary and secondary atony was assessed to be avoidable in 4/10 and 4/13 cases, respectively. Early sufficient suturing of lacerations and uterine ruptures, as well as a more widespread use of intrauterine balloons alone or in combination with uterine compression sutures (the sandwich model), could presumably have prevented about one fourth of the peripartum hysterectomies. Conclusion More than 50% of peripartum hysterectomies seem to be avoidable by simple measures. In order to minimize the number of unnecessary peripartum hysterectomies, obstetricians and anesthesiologists should investigate individual cases by structured clinical audit, and disseminate and discuss the results for educational purposes. An international collaboration is warranted to strengthen our recommendations and reveal if they are generally applicable.
- Published
- 2016
35. Increasing prevalence of group B streptococcal infection among pregnant women
- Author
-
Petersen, Kathrine Birch, Johansen, Helle Krogh, Rosthøj, Susanne, Krebs, Lone, Pinborg, Anja, Hedegaard, Morten, Petersen, Kathrine Birch, Johansen, Helle Krogh, Rosthøj, Susanne, Krebs, Lone, Pinborg, Anja, and Hedegaard, Morten
- Published
- 2014
36. Behandling af placenta percreta kræver involvering af flere specialer
- Author
-
Clausen, Caroline, Lönn, Lars, Albrechtsen, Charlotte Krebs, Hansen, Marc, Nørgaard, Lone Nikoline, Petersen, Kathrine Birch, Stensballe, Jakob, Sundberg, Karin, Langhoff-Roos, Jens, Clausen, Caroline, Lönn, Lars, Albrechtsen, Charlotte Krebs, Hansen, Marc, Nørgaard, Lone Nikoline, Petersen, Kathrine Birch, Stensballe, Jakob, Sundberg, Karin, and Langhoff-Roos, Jens
- Abstract
Placenta percreta is a rare life-threatening obstetrical condition, often resulting in severe haemorrhage and hysterectomy. The incidence seems to be increasing, probably secondary to the increase in caesarean section rates. We present a protocol for an elective multidisciplinary approach with proactive management to reduce haemorrhage and allow appropriate surgery, which imply a low maternal and fetal morbidity as well as maintained fertility.
- Published
- 2011
37. Graviditet i uteruscikatricen efter tidligere sectio
- Author
-
Petersen, Kathrine Birch, Langhoff-Roos, Jens, Krebs, Lone, Hartwell, Dorthe, Hoffmann, Elise, Petersen, Kathrine Birch, Langhoff-Roos, Jens, Krebs, Lone, Hartwell, Dorthe, and Hoffmann, Elise
- Abstract
Rarely, but with increasing frequency, we detect pregnancies within the uterine scar of a prior Caesarean section. These ectopic pregnancies entail a risk of severe bleeding and uterine rupture, and thus constitute a threat to the pregnant woman's life, underlining the necessity of awareness about these complications. Vaginal bleeding and/or mild to moderate lower abdominal pain are symptoms seen in half of the women. The diagnosis is made by sonography and criteria for these are listed. We here present the most recent studies on treatment strategies, follow-up and future fertility.
- Published
- 2010
38. [Recommended therapy for psychosocial consequences of infertility and fertility treatment].
- Author
-
Garre VFS, Rederiksen Y, and Petersen KB
- Subjects
- Adaptation, Psychological, Humans, Reproductive Techniques, Assisted, Research Design, Infertility therapy, Stress, Psychological therapy
- Abstract
Infertility and fertility treatment are both major stressors, which can cause prolonged psychological distress and vulnerability as summarised in this review. There are well-founded initiatives such as screening, patient-centred care and, in a Nordic context, psychosocial interventions with training sessions in e.g. coping in order to improve the well-being of these patients. However, in Denmark, psychosocial care in public fertility clinics is limited, and no mental health professionals are represented at the public clinics. Consequently, a gap remains between the recommendations in this area and the clinical practice.
- Published
- 2020
39. [Fertility screening is a new concept].
- Author
-
Petersen KB and Andersen AN
- Subjects
- Adult, Age Factors, Ambulatory Care Facilities, Denmark, Female, Humans, Life Style, Male, Middle Aged, Ovarian Reserve, Pregnancy, Reproductive Health Services, Sperm Count, Young Adult, Counseling, Fertility, Reproductive Health
- Abstract
The Fertility Assessment and Counselling Clinic was initiated in 2011 as an analogue to the family planning clinics in the 1970s, but with a pro-fertility aim. The idea was to provide individual assessment of fertility risk factors, ovarian reserve and sperm concentration to help women and men to fulfil their reproductive life plan. Fertility screening on an individual level is a new concept, and the Fertility Assessment and Counselling Clinic is the first of its kind. The aim of the clinic is to reduce the need for fertility treatments and to prevent involuntary childlessness.
- Published
- 2016
40. Individual fertility assessment and counselling in women of reproductive age.
- Author
-
Petersen KB
- Subjects
- Female, Humans, Pregnancy, Counseling methods, Fertility, Maternal Age, Pregnancy Rate trends
- Abstract
The overall aim of this thesis was to validate the new concept of the Fertility Assessment and Counselling (FAC) Clinic at Rigshospitalet. The intention was to: explore the prognostic value of fertility risk factors by a risk score and provide an estimate of female fecundity, to quantify the impact of oral contraception (OC) on ovarian reserve parameters defined as Anti Müllerian Hormone (AMH), Antral Follicle Count (AFC) and ovarian volume, and to gain knowledge of attitudes and considerations toward family formation in women of advanced age. The thesis is based on the following four manuscripts: Manuscript I describes the predictive value of individual fertility assessment and counselling in terms of subsequent time to pregnancy within two years after the initial consultation at the FAC Clinic. The follow up study comprised 519 women, of which 352 had tried to conceive. At the time of follow-up, 259/352 had achieved a pregnancy, 74/352 were still trying and 19/352 had given up. The remaining 167 women had no attempts to conceive. The risk assessment provided a score based on the appearance of fertility risk factors: green (low), yellow (low), orange (medium) and red (high). Two-thirds of the women with only low risk scores conceived spontaneously within 12 months (65%), while this figure was only 32% for women with at least one high risk score (n=82). Accordingly, presence of at least one high risk score reduced the odds of achieving a pregnancy within 12 months by 73% (OR 0.27, 95%CI 0.13-0.57). The FAC Clinic concept seems as a usable tool for fertility experts to guide women on how to fulfil their reproductive life-plan, but longer follow-up studies are needed. Manuscript II describes the impact of OC on ovarian reserve parameters in 887 women at the FAC Clinic. Of the 887 women, 244 (27.5%) used OC. The 244 users of OC were significantly younger than non-users with a mean age of 31.5 (SD 4.3) vs. 34.1 (SD 4.3) years (p < 0.001). Overall, there was no difference between the two groups in relation to bodyweight, BMI, smoking habits, gestational age at birth, prenatal exposure to maternal smoking or maternal age at menopause. In linear regression analyses adjusted for age, ovarian volume was 50% lower, AMH was 19% lower, and AFC was 18% lower in OC-users compared to non-users. Among the OC users there was a significant decrease in antral follicles sized 5-7 and 8-10 mm and an increase in the number of small follicles sized 2-4 mm. Physicians have to be aware of the impact of OC use on ovarian reserve parameters and possible concealment of premature ovarian insufficiency, when assessing the fertility status and estimating the reproductive lifespan in OC users. Manuscript III describes the family intentions and personal considerations on postponing childbearing in 340 childless women of advanced age. The study comprised 140 cohabiting and 200 single women aged 35-43 seeking fertility assessment and counselling at the FAC Clinic. The majority (82%) was well-educated and in employment. Despite their mean age of 37.4 years, the main reasons for attending the FAC Clinic were to gain knowledge on the possibility of postponing pregnancy (63%) and due to a concern about their fecundity (52%). Both the cohabiting and single women expressed a wish for two or more children (60%). The most important benefits were "personal development" (89%) and "to give and receive love" (86%). The main concerns about childbearing were "less time to myself" (82%) and "less time to job and career" (76%). The single women were more positive regarding the use of donor sperm (70%) compared to the cohabiting women (25%). Our results indicated a general overestimation of the women´s own reproductive capacity and an underestimation of their risk of future infertility and childlessness with continuous postponement of pregnancies. Manuscript IV describes attitudes toward family formation in ten single and ten cohabiting childless women of advanced age. The women were interviewed one week before their consultation at the FAC Clinic about their family formation intentions, considerations and concerns. The interviews were analysed and condensed into four categories: ''The biological clock'', ''The difficult choice'', ''The dream of the nuclear family'', and ''Mother without a father''. The categories were condensed into two subthemes; `Fear´ and `Expectations´ and gathered into one main theme 'The conflict of choosing', which reflected the women's attitudes toward family formation prior to individual fertility counselling. The women attended the FAC Clinic due to a concern about their fecundity and a fear for infertility. Overall, the women expressed a dream of the nuclear family and finding "Mr. Right" and many with the wish of buying more time. Both groups would consider solo motherhood due to their advanced age, although it was considered to be Plan B, as it was not "natural".
- Published
- 2016
41. Increasing prevalence of group B streptococcal infection among pregnant women.
- Author
-
Petersen KB, Johansen HK, Rosthøj S, Krebs L, Pinborg A, and Hedegaard M
- Subjects
- Adolescent, Adult, Cohort Studies, Denmark epidemiology, Female, Humans, Incidence, Infant, Newborn, Logistic Models, Pregnancy, Pregnancy Complications, Infectious diagnosis, Pregnancy Complications, Infectious etiology, Prevalence, Retrospective Studies, Risk Factors, Streptococcal Infections diagnosis, Streptococcal Infections etiology, Young Adult, Pregnancy Complications, Infectious epidemiology, Streptococcal Infections epidemiology, Streptococcus agalactiae isolation & purification
- Abstract
Introduction: Group B streptococci (GBS) can cause preterm delivery for women and sepsis and meningitis in infants younger than 90 days of age. The present retrospective cohort study determines the trend over time in the rates of GBS and in demographic risk factors for GBS among pregnant women delivering at Rigshospitalet (RH)., Material and Methods: In the period from 2002 to 2010, a total of 33,616 women gave birth at the RH. Our cohort was defined as 16,587 (49%) women examined by 24,724 cultures. All microbiological requisitions from the Department of Obstetrics at RH were extracted from the Clinical Microbiology Database. Maternal data were obtained from a local database at the RH., Results: In our cohort, a total of 638 (3.8%) women were diagnosed with GBS, 517 (81%) from urine, 92 (14%) from vaginal swabs and 29 (5%) from both. The overall rate of women colonised with GBS rose from 3.3% in 2002 to 5.1% in 2010 (p < 0.0001). A total of 48 infants had early-onset group B streptococcus (EOGBS), 1.4 per 1,000 neonates in the general population and 7.8 per 1,000 among women with GBS (p < 0.0001)., Conclusion: We found a low GBS colonisation rate in our pregnant cohort, but the rate followed an increasing trend over the study period. GBS during pregnancy was associated with a low birth weight and preterm delivery. More research on preventive measures is needed, but updated guidelines, screening and intrapartum antibiotic prophylaxis continue to be the cornerstones of EOGBS disease prevention., Funding: not relevant., Trial Registration: not relevant.
- Published
- 2014
42. [Pneumomediastinum and subcutaneous emphysema complicating active labour].
- Author
-
Rugaard MB and Petersen KB
- Subjects
- Adult, Female, Humans, Mediastinal Emphysema etiology, Mediastinal Emphysema therapy, Obstetric Labor Complications etiology, Obstetric Labor Complications therapy, Pregnancy, Subcutaneous Emphysema etiology, Subcutaneous Emphysema therapy, Mediastinal Emphysema diagnosis, Obstetric Labor Complications diagnosis, Subcutaneous Emphysema diagnosis
- Abstract
Subcutaneous emphysema and pneumomediastinum were first described by Hamman in 1945. Spontaneous pneumomediastinum is an uncommon, self-limiting condition caused by alveolar rupture and usually results from bronchial hyper-reactivity or barotraumas. We report a case describing a 25 year old patient in her first pregnancy, who during active labour developed subcutaneous emphysema and pneumomediastinum. Pneumomediastinum in labour is a rare complication to Valsalva maneuver, and it is diagnosed with a computed tomography. The most common symptoms are chest pain, dyspnea, neck pain and odynophagia.
- Published
- 2011
43. [Treatment of placenta percreta requires a multidisciplinary approach].
- Author
-
Clausen C, Lönn L, Albrechtsen CK, Hansen M, Nørgaard LN, Petersen KB, Stensballe J, Sundberg K, and Langhoff-Roos J
- Subjects
- Cesarean Section adverse effects, Cesarean Section methods, Critical Pathways, Elective Surgical Procedures methods, Female, Humans, Interdisciplinary Communication, Patient Care Team, Placenta Previa diagnostic imaging, Placenta Previa drug therapy, Pregnancy, Ultrasonography, Perioperative Care methods, Placenta Previa surgery
- Abstract
Placenta percreta is a rare life-threatening obstetrical condition, often resulting in severe haemorrhage and hysterectomy. The incidence seems to be increasing, probably secondary to the increase in caesarean section rates. We present a protocol for an elective multidisciplinary approach with proactive management to reduce haemorrhage and allow appropriate surgery, which imply a low maternal and fetal morbidity as well as maintained fertility.
- Published
- 2011
44. [Pregnancy within the uterine scar of a prior Caesarean section].
- Author
-
Petersen KB, Langhoff-Roos J, Krebs L, Hartwell D, and Hoffmann E
- Subjects
- Diagnosis, Differential, Female, Humans, Pregnancy, Risk Factors, Ultrasonography, Uterine Rupture etiology, Cesarean Section adverse effects, Cicatrix complications, Pregnancy, Ectopic diagnostic imaging, Pregnancy, Ectopic etiology, Pregnancy, Ectopic therapy
- Abstract
Rarely, but with increasing frequency, we detect pregnancies within the uterine scar of a prior Caesarean section. These ectopic pregnancies entail a risk of severe bleeding and uterine rupture, and thus constitute a threat to the pregnant woman's life, underlining the necessity of awareness about these complications. Vaginal bleeding and/or mild to moderate lower abdominal pain are symptoms seen in half of the women. The diagnosis is made by sonography and criteria for these are listed. We here present the most recent studies on treatment strategies, follow-up and future fertility.
- Published
- 2010
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