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Stroeken Y, Broekhuijsen K, Leyten E, Hermes W. Case Report: Subfertility and Pregnancy Loss due to Genital Tuberculosis. SN Compr Clin Med 2023; 5:164. [PMID: 37363360 PMCID: PMC10267541 DOI: 10.1007/s42399-023-01492-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 05/24/2023] [Indexed: 06/28/2023]
Abstract
Tuberculosis (TB) is a disease that primarily affects low and middle income countries (LMICs) but is becoming more relevant in Western countries due to increasing migration from high TB burden countries. It is especially difficult to detect in women with fertility issues as it mimics other more common causes. Delayed diagnosis of TB can result in fallopian tube and endometrial pathology leading to subfertility and pregnancy loss. This case report describes a 34-year-old woman from Ivory Coast who was diagnosed with intrauterine tuberculosis after hysteroscopic evacuation of suspected retained placental tissue following an immature delivery. The patient had a complicated fertility history, including pelvic inflammatory disease and IVF/ICSI procedures, before becoming pregnant at the age of 38. She delivered prematurely at 22 weeks with a retained placenta. A diagnosis of TB was confirmed after pathology revealed granulomatous inflammation, without signs of placental tissue, and further testing confirmed rifampicin-resistant TB. The patient underwent a 15-month course of multi-drug-resistant TB treatment, which postponed her pregnancy wish. The case highlights the challenge of diagnosing genital TB in the female genital tract during subfertility investigations and after a complicated pregnancy in a woman without a history of or symptoms of TB. It underscores the importance of considering TB in the differential diagnosis of subfertility. Screening should be considered in women originating from high endemic countries with unexplained fertility loss and during first trimester screening.
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Affiliation(s)
- Y. Stroeken
- Present Address: Leids Universitair Medisch Centrum, Leiden, Netherlands
- HMC Haaglanden Medisch Centrum, Den Haag, Netherlands
| | - K. Broekhuijsen
- HMC Haaglanden Medisch Centrum, Den Haag, Netherlands
- Present Address: Bergman Clinics Hilversum, Hilversum, Netherlands
| | - E. Leyten
- HMC Haaglanden Medisch Centrum, Den Haag, Netherlands
| | - W. Hermes
- HMC Haaglanden Medisch Centrum, Den Haag, Netherlands
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Welters SM, de Boer M, Teunissen PW, Hermes W, Ravelli ACJ, Mol BW, de Groot CJM. Cardiovascular mortality in women in their forties after hypertensive disorders of pregnancy in the Netherlands: a national cohort study. Lancet Healthy Longev 2023; 4:e34-e42. [PMID: 36610446 DOI: 10.1016/s2666-7568(22)00292-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 11/23/2022] [Accepted: 12/01/2022] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Hypertensive disorders of pregnancy are associated with cardiovascular disease later in life. Given that hypertensive disorders of pregnancy often occur at a relatively young age, there might be an opportunity to use preventive measures to reduce the risk of early cardiovascular disease and mortality. The aim of this study was to assess the risk of cardiovascular mortality in women after a hypertensive disorder of pregnancy. METHODS In this population-based cohort study, the Netherlands Perinatal Registry (PRN) and the national death registry at the Dutch Central Bureau for Statistics were linked. We analysed women in the Netherlands with a first birth during 1995-2015 to determine the association between cardiovascular mortality and hypertensive disorders of pregnancy (based on recorded diastolic blood pressure or proteinuria, or both). We analysed the association between the highest diastolic blood pressure measured in pregnancy and cardiovascular mortality and constructed survival curves to assess cardiovascular mortality after hypertensive disorders of pregnancy, specifically pre-eclampsia and gestational hypertension. To differentiate between the severity of hypertensive disorders of pregnancy, cardiovascular mortality was assessed in women with a combination of hypertensive disorders of pregnancy with preterm birth (gestational age <37 weeks) and growth restriction (birthweight in the 10th percentile or less). All hazard ratios (HRs)were adjusted for maternal age. FINDINGS Between Jan 1, 1995, and Dec 31, 2015, the PRN contained 2 462 931 deliveries and 1 625 246 women. In 1 243 890 women data on their first pregnancy were available and were included in this analysis after linkage, with a median follow-up time of 11·2 years (IQR 6·1-16·3). 259 177 (20·8%) women had hypertensive disorders of pregnancy, and of these 45 482 (3·7%) women had pre-eclampsia and 213 695 (17·2%) women had gestational hypertension; 984 713 (79·2%) women did not develop hypertension in their first pregnancy. Compared with women without hypertensive disorders of pregnancy, the risk of death from any cause was higher in women who had hypertensive disorders (HR 1·30 [95% CI 1·23-1·37], p<0·001), pre-eclampsia (1·65 [1·48-1·83]; p<0·0001), and gestational hypertension (1·23 [1·16-1·30]; p<0·0001). Those women with pre-eclampsia had a higher risk of cardiovascular mortality compared with those without any hypertensive disorders of pregnancy (adjusted HR 3·39 [95% CI 2·67-4·29]), as did those with gestational hypertension (2·22 [1·91-2·57]). For women with a history of hypertensive disorders of pregnancy combined with preterm birth (gestational age <37 weeks) and birthweight in the 10th percentile or less, the adjusted HR for cardiovascular mortality was 6·43 (95% CI 4·36-9·47), compared with women without a hypertensive disorder of pregnancy. The highest diastolic blood pressure measured during pregnancy was the strongest risk factor for cardiovascular mortality (for 80-89 mm Hg: adjusted HR 1·47 [95% CI 1·00-2·17]; for 130 mm Hg and higher: 14·70 [7·31-29·52]). INTERPRETATION Women with a history of hypertensive disorders of pregnancy have a risk of cardiovascular mortality that is 2-3 times higher than that of women with normal blood pressure during pregnancy. The highest measured diastolic blood pressure during pregnancy is an important predictor for cardiovascular mortality later in life; therefore, women who have hypertensive disorders of pregnancy should be given personalised cardiovascular follow-up plans to reduce their risk of cardiovascular mortality. FUNDING None.
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Affiliation(s)
- Sophie M Welters
- Department of Obstetrics and Gynecology, Amsterdam Reproduction and Development Research Institute, Amsterdam UMC, VU Medical Center, Amsterdam, Netherlands.
| | - Marjon de Boer
- Department of Obstetrics and Gynecology, Amsterdam Reproduction and Development Research Institute, Amsterdam UMC, VU Medical Center, Amsterdam, Netherlands
| | - Pim W Teunissen
- Department of Obstetrics and Gynecology, Maastricht University Medical Center, Maastricht, Netherlands
| | - Wietske Hermes
- Department of Obstetrics and Gynecology, Haaglanden Medical Center, The Hague, Netherlands
| | - Anita C J Ravelli
- Department of Obstetrics and Gynecology, and Department of Medical Informatics, Academic Medical Center, Amsterdam, Netherlands
| | - Ben W Mol
- Department of Obstetrics and Gynaecology, Monash University, Melbourne, VIC, Australia; Aberdeen Centre for Women's Health Research, Institute of Applied Health Sciences, School of Medicine, Medical Sciences, and Nutrition, University of Aberdeen, Aberdeen, UK
| | - Christianne J M de Groot
- Department of Obstetrics and Gynecology, Amsterdam Reproduction and Development Research Institute, Amsterdam UMC, VU Medical Center, Amsterdam, Netherlands
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Landman AJEMC, de Boer MA, Visser L, Nijman TAJ, Hemels MAC, Naaktgeboren CN, van der Weide MC, Mol BW, van Laar JOEH, Papatsonis DNM, Bekker MN, van Drongelen J, van Pampus MG, Sueters M, van der Ham DP, Sikkema JM, Zwart JJ, Huisjes AJM, van Huizen ME, Kleiverda G, Boon J, Franssen MTM, Hermes W, Visser H, de Groot CJM, Oudijk MA. Evaluation of low-dose aspirin in the prevention of recurrent spontaneous preterm labour (the APRIL study): A multicentre, randomised, double-blinded, placebo-controlled trial. PLoS Med 2022; 19:e1003892. [PMID: 35104279 PMCID: PMC8806064 DOI: 10.1371/journal.pmed.1003892] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 12/14/2021] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND Preterm birth is the leading cause of neonatal morbidity and mortality. The recurrence rate of spontaneous preterm birth is high, and additional preventive measures are required. Our objective was to assess the effectiveness of low-dose aspirin compared to placebo in the prevention of preterm birth in women with a previous spontaneous preterm birth. METHODS AND FINDINGS We performed a parallel multicentre, randomised, double-blinded, placebo-controlled trial (the APRIL study). The study was performed in 8 tertiary and 26 secondary care hospitals in the Netherlands. We included women with a singleton pregnancy and a history of spontaneous preterm birth of a singleton between 22 and 37 weeks. Participants were randomly assigned to aspirin 80 mg daily or placebo initiated between 8 and 16 weeks of gestation and continued until 36 weeks or delivery. Randomisation was computer generated, with allocation concealment by using sequentially numbered medication containers. Participants, their healthcare providers, and researchers were blinded for treatment allocation. The primary outcome was preterm birth <37 weeks of gestation. Secondary outcomes included a composite of poor neonatal outcome (bronchopulmonary dysplasia, periventricular leukomalacia > grade 1, intraventricular hemorrhage > grade 2, necrotising enterocolitis > stage 1, retinopathy of prematurity, culture proven sepsis, or perinatal death). Analyses were performed by intention to treat. From May 31, 2016 to June 13, 2019, 406 women were randomised to aspirin (n = 204) or placebo (n = 202). A total of 387 women (81.1% of white ethnic origin, mean age 32.5 ± SD 3.8) were included in the final analysis: 194 women were allocated to aspirin and 193 to placebo. Preterm birth <37 weeks occurred in 41 (21.2%) women in the aspirin group and 49 (25.4%) in the placebo group (relative risk (RR) 0.83, 95% confidence interval (CI) 0.58 to 1.20, p = 0.32). In women with ≥80% medication adherence, preterm birth occurred in 24 (19.2%) versus 30 (24.8%) women (RR 0.77, 95% CI 0.48 to 1.25, p = 0.29). The rate of the composite of poor neonatal outcome was 4.6% (n = 9) versus 2.6% (n = 5) (RR 1.79, 95% CI 0.61 to 5.25, p = 0.29). Among all randomised women, serious adverse events occurred in 11 out of 204 (5.4%) women allocated to aspirin and 11 out of 202 (5.4%) women allocated to placebo. None of these serious adverse events was considered to be associated with treatment allocation. The main study limitation is the underpowered sample size due to the lower than expected preterm birth rates. CONCLUSIONS In this study, we observed that low-dose aspirin did not significantly reduce the preterm birth rate in women with a previous spontaneous preterm birth. However, a modest reduction of preterm birth with aspirin cannot be ruled out. Further research is required to determine a possible beneficial effect of low-dose aspirin for women with a previous spontaneous preterm birth. TRIAL REGISTRATION Dutch Trial Register (NL5553, NTR5675) https://www.trialregister.nl/trial/5553.
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Affiliation(s)
- Anadeijda J. E. M. C. Landman
- Department of Obstetrics and Gynaecology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam Reproduction & Development Research Institute, Amsterdam, the Netherlands
| | - Marjon A. de Boer
- Department of Obstetrics and Gynaecology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam Reproduction & Development Research Institute, Amsterdam, the Netherlands
| | - Laura Visser
- Department of Obstetrics and Gynaecology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam Reproduction & Development Research Institute, Amsterdam, the Netherlands
| | - Tobias A. J. Nijman
- Department of Obstetrics and Gynaecology, Haaglanden Medical Centre, Den Haag, the Netherlands
| | | | - Christiana N. Naaktgeboren
- Department of Obstetrics and Gynaecology, Amsterdam UMC, University of Amsterdam, Amsterdam Reproduction & Development Research Institute, Amsterdam, the Netherlands
| | - Marijke C. van der Weide
- Department of Obstetrics and Gynaecology, Amsterdam UMC, University of Amsterdam, Amsterdam Reproduction & Development Research Institute, Amsterdam, the Netherlands
| | - Ben W. Mol
- Department of Obstetrics and Gynaecology, School of Clinical Sciences at Monash Health, Monash University, Melbourne, Victoria, Australia
- Aberdeen Centre for Women’s Health Research, University of Aberdeen Aberdeen, United Kingdom
| | | | | | - Mireille N. Bekker
- Department of Obstetrics and Gynaecology, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - Joris van Drongelen
- Department of Obstetrics and Gynaecology, Radboud University Medical Center, Nijmegen, the Netherlands
| | | | - Marieke Sueters
- Department of Obstetrics and Gynaecology, Leiden University Medical Centre, Leiden, the Netherlands
| | - David P. van der Ham
- Department of Obstetrics and Gynaecology, Martini Hospital, Groningen, the Netherlands
| | - J. Marko Sikkema
- Department of Obstetrics and Gynaecology, Hospital Group Twente Almelo, Almelo, the Netherlands
| | - Joost J. Zwart
- Department of Obstetrics and Gynaecology, Deventer Hospital, Deventer, the Netherlands
| | - Anjoke J. M. Huisjes
- Department of Obstetrics and Gynaecology, Gelre Hospitals Apeldoorn, Apeldoorn, the Netherlands
| | | | - Gunilla Kleiverda
- Department of Obstetrics and Gynaecology, Flevo Hospital Almere, Almere, the Netherlands
| | - Janine Boon
- Department of Obstetrics and Gynaecology, Diakonessenhuis, Utrecht, the Netherlands
| | - Maureen T. M. Franssen
- Department of Obstetrics and Gynaecology, University Medical Centre Groningen, Groningen, the Netherlands
| | - Wietske Hermes
- Department of Obstetrics and Gynaecology, Haaglanden Medical Centre, Den Haag, the Netherlands
| | - Harry Visser
- Department of Obstetrics and Gynaecology, Tergooi Hospitals, Hilversum, the Netherlands
| | - Christianne J. M. de Groot
- Department of Obstetrics and Gynaecology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam Reproduction & Development Research Institute, Amsterdam, the Netherlands
| | - Martijn A. Oudijk
- Department of Obstetrics and Gynaecology, Amsterdam UMC, University of Amsterdam, Amsterdam Reproduction & Development Research Institute, Amsterdam, the Netherlands
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Landman A, de Boer M, Visser L, Hemels M, Naaktgeboren C, Jansen-van der Weide M, Mol B, van Laar J, Papatsonis D, Bekker M, van Drongelen J, van Pampus M, Sueters M, van der Ham D, Sikkema M, Zwart J, Huisjes A, van Huizen M, Kleiverda G, Boon J, Franssen M, Hermes W, Visser H, de Groot CJ, Oudijk MA. 9 Low dose aspirin for the prevention of recurrent preterm labor (APRIL): a randomized controlled trial. Am J Obstet Gynecol 2021. [DOI: 10.1016/j.ajog.2020.12.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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de Wit L, Rademaker D, Voormolen DN, Akerboom BMC, Kiewiet-Kemper RM, Soeters MR, Verwij-Didden MAL, Assouiki F, Schippers DH, Vermeulen MAR, Kuppens SMI, Oosterwerff MM, Zwart JJ, Diekman MJM, Vogelvang TE, Gallas PRJ, Galjaard S, Visser W, Horree N, Klooker TK, Laan R, Heijligenberg R, Huisjes AJM, van Bemmel T, van Meir CA, van den Beld AW, Hermes W, Vidarsdottir S, Veldhuis-Vlug AG, Dullemond RC, Jansen HJ, Sueters M, de Koning EJP, van Laar JOEH, Wouters-van Poppel P, Sanson-van Praag ME, van den Akker ES, Brouwer CB, Hermsen BB, Potter van Loon BJ, van der Heijden OWH, de Galan BE, van Leeuwen M, Wijbenga JAM, de Boer K, van Bon AC, van der Made FW, Eskes SA, Zandstra M, van Houtum WH, Braams-Lisman BAM, Daemen-Gubbels CRGM, Wouters MGAJ, IJzerman RG, Mensing van Charante NA, Zwertbroek R, Bosmans JE, Evers IM, Mol BW, de Valk HW, Groenendaal F, Naaktgeboren CA, Painter RC, deVries JH, Franx A, van Rijn BB. SUGAR-DIP trial: oral medication strategy versus insulin for diabetes in pregnancy, study protocol for a multicentre, open-label, non-inferiority, randomised controlled trial. BMJ Open 2019; 9:e029808. [PMID: 31427334 PMCID: PMC6701578 DOI: 10.1136/bmjopen-2019-029808] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 04/11/2019] [Accepted: 05/22/2019] [Indexed: 12/12/2022] Open
Abstract
INTRODUCTION In women with gestational diabetes mellitus (GDM) requiring pharmacotherapy, insulin was the established first-line treatment. More recently, oral glucose lowering drugs (OGLDs) have gained popularity as a patient-friendly, less expensive and safe alternative. Monotherapy with metformin or glibenclamide (glyburide) is incorporated in several international guidelines. In women who do not reach sufficient glucose control with OGLD monotherapy, usually insulin is added, either with or without continuation of OGLDs. No reliable data from clinical trials, however, are available on the effectiveness of a treatment strategy using all three agents, metformin, glibenclamide and insulin, in a stepwise approach, compared with insulin-only therapy for improving pregnancy outcomes. In this trial, we aim to assess the clinical effectiveness, cost-effectiveness and patient experience of a stepwise combined OGLD treatment protocol, compared with conventional insulin-based therapy for GDM. METHODS The SUGAR-DIP trial is an open-label, multicentre randomised controlled non-inferiority trial. Participants are women with GDM who do not reach target glycaemic control with modification of diet, between 16 and 34 weeks of gestation. Participants will be randomised to either treatment with OGLDs, starting with metformin and supplemented as needed with glibenclamide, or randomised to treatment with insulin. In women who do not reach target glycaemic control with combined metformin and glibenclamide, glibenclamide will be substituted with insulin, while continuing metformin. The primary outcome will be the incidence of large-for-gestational-age infants (birth weight >90th percentile). Secondary outcome measures are maternal diabetes-related endpoints, obstetric complications, neonatal complications and cost-effectiveness analysis. Outcomes will be analysed according to the intention-to-treat principle. ETHICS AND DISSEMINATION The study protocol was approved by the Ethics Committee of the Utrecht University Medical Centre. Approval by the boards of management for all participating hospitals will be obtained. Trial results will be submitted for publication in peer-reviewed journals. TRIAL REGISTRATION NUMBER NTR6134; Pre-results.
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Affiliation(s)
- Leon de Wit
- Department of Obstetrics and Gynaecology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Doortje Rademaker
- Department of Obstetrics and Gynaecology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Daphne N Voormolen
- Department of Obstetrics and Gynaecology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Bettina M C Akerboom
- Department of Obstetrics and Gynaecology, Albert Schweitzer Hospital, Dordrecht, The Netherlands
| | | | - Maarten R Soeters
- Department of Endocrinology and Metabolism, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | | | - Fahima Assouiki
- Department of Internal Medicine, Bernhoven Hospital, Uden, The Netherlands
| | - Daniela H Schippers
- Department of Obstetrics and Gynaecology, Canisius Wilhelmina Hospital, Nijmegen, The Netherlands
| | - Mechteld A R Vermeulen
- Department of Internal Medicine, Canisius Wilhelmina Hospital, Nijmegen, The Netherlands
| | - Simone M I Kuppens
- Department of Obstetrics and Gynaecology, Catharina Hospital, Eindhoven, The Netherlands
| | | | - Joost J Zwart
- Department of Obstetrics and Gynaecology, Deventer Hospital, Deventer, The Netherlands
| | | | - Tatjana E Vogelvang
- Department of Obstetrics and Gynaecology, Diakonessenhuis Utrecht, Utrecht, The Netherlands
| | - P Rob J Gallas
- Department of Internal Medicine, Diakonessenhuis Utrecht, Utrecht, The Netherlands
| | - Sander Galjaard
- Department of Obstetrics and Prenatal Medicine, Erasmus MC University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Willy Visser
- Department of Obstetrics and Prenatal Medicine, Erasmus MC University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Nicole Horree
- Department of Obstetrics and Gynaecology, Flevoziekenhuis, Almere, The Netherlands
| | - Tamira K Klooker
- Department of Internal Medicine, Flevoziekenhuis, Almere, The Netherlands
| | - Rosemarie Laan
- Department of Obstetrics and Gynaecology, Gelderse Vallei Hospital, Ede, The Netherlands
| | - Rik Heijligenberg
- Department of Internal Medicine, Gelderse Vallei Hospital, Ede, The Netherlands
| | - Anjoke J M Huisjes
- Department of Obstetrics and Gynaecology, Gelre Hospitals, Apeldoorn, The Netherlands
| | - Thomas van Bemmel
- Department of Internal Medicine, Gelre Hospitals, Apeldoorn, The Netherlands
| | - Claudia A van Meir
- Department of Obstetrics and Gynaecology, Groene Hart Hospital, Gouda, The Netherlands
| | | | - Wietske Hermes
- Department of Obstetrics and Gynaecology, Haaglanden Medical Center, The Hague, The Netherlands
| | - Solrun Vidarsdottir
- Department of Internal Medicine, Haaglanden Medical Center, The Hague, The Netherlands
| | - Anneke G Veldhuis-Vlug
- Department of Internal Medicine, Medical Center Jan van Goyen, Amsterdam, The Netherlands
| | - Remke C Dullemond
- Department of Obstetrics and Gynaecology, Jeroen Bosch Hospital, 's-Hertogenbosch, The Netherlands
| | - Henrique J Jansen
- Department of Internal Medicine, Jeroen Bosch Hospital, 's-Hertogenbosch, The Netherlands
| | - Marieke Sueters
- Department of Obstetrics and Gynaecology, Leiden University Medical Center, Leiden, The Netherlands
| | - Eelco J P de Koning
- Department of Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Judith O E H van Laar
- Department of Obstetrics and Gynaecology, Máxima Medical Center, Veldhoven, The Netherlands
| | | | | | | | | | - Brenda B Hermsen
- Department of Obstetrics and Gynaecology, OLVG, Amsterdam, The Netherlands
| | | | - Olivier W H van der Heijden
- Department of Obstetrics and Gynaecology, Radboud University Medical Center Nijmegen, Nijmegen, The Netherlands
| | - Bastiaan E de Galan
- Department of Internal Medicine, Radboud University Medical Center Nijmegen, Nijmegen, The Netherlands
| | - Marsha van Leeuwen
- Department of Obstetrics and Gynaecology, Reinier de Graaf Hospital, Delft, The Netherlands
| | - Johanna A M Wijbenga
- Department of Internal Medicine, Reinier de Graaf Hospital, Delft, The Netherlands
| | - Karin de Boer
- Department of Obstetrics and Gynaecology, Rijnstate Hospital, Arnhem, The Netherlands
| | - Arianne C van Bon
- Department of Internal Medicine, Rijnstate Hospital, Arnhem, The Netherlands
| | - Flip W van der Made
- Department of Obstetrics and Gynaecology, Franciscus Gasthuis and Vlietland, Rotterdam, The Netherlands
| | - Silvia A Eskes
- Department of Internal Medicine, Franciscus Gasthuis and Vlietland, Rotterdam, The Netherlands
| | - Mirjam Zandstra
- Department of Obstetrics and Gynaecology, Spaarne Gasthuis, Haarlem, The Netherlands
| | | | | | | | - Maurice G A J Wouters
- Department of Obstetrics and Gynaecology, Amsterdam UMC, VU University Medical Center, Amsterdam, The Netherlands
| | - Richard G IJzerman
- Department of Internal Medicine, Amsterdam UMC, VU University Medical Center, Amsterdam, The Netherlands
| | | | - Rolf Zwertbroek
- Department of Internal Medicine, Dijklander Hospital, Hoorn, The Netherlands
| | - Judith E Bosmans
- Department of Health Sciences, Faculty of Science, VU University Amsterdam, Amsterdam, The Netherlands
| | - Inge M Evers
- Department of Obstetrics and Gynaecology, Meander Medical Center, Amersfoort, The Netherlands
| | - Ben Willem Mol
- Department of Obstetrics and Gynaecology, School of Medicine, Monash University, Melbourne, Australia, Melbourne, The Netherlands
| | - Harold W de Valk
- Department of Internal Medicine and Endocrinology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Floris Groenendaal
- Department of Neonatology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Christiana A Naaktgeboren
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
| | - Rebecca C Painter
- Department of Obstetrics and Gynaecology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - J Hans deVries
- Department of Internal Medicine, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Arie Franx
- Department of Obstetrics and Gynaecology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Bas B van Rijn
- Department of Obstetrics and Gynaecology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
- Department of Obstetrics and Prenatal Medicine, Erasmus MC University Medical Center Rotterdam, Rotterdam, The Netherlands
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Stegwee SI, Jordans IPM, van der Voet LF, Bongers MY, de Groot CJM, Lambalk CB, de Leeuw RA, Hehenkamp WJK, van de Ven PM, Bosmans JE, Pajkrt E, Bakkum EA, Radder CM, Hemelaar M, van Baal WM, Visser H, van Laar JOEH, van Vliet HAAM, Rijnders RJP, Sueters M, Janssen CAH, Hermes W, Feitsma AH, Kapiteijn K, Scheepers HCJ, Langenveld J, de Boer K, Coppus SFPJ, Schippers DH, Oei ALM, Kaplan M, Papatsonis DNM, de Vleeschouwer LHM, van Beek E, Bekker MN, Huisjes AJM, Meijer WJ, Deurloo KL, Boormans EMA, van Eijndhoven HWF, Huirne JAF. Single- versus double-layer closure of the caesarean (uterine) scar in the prevention of gynaecological symptoms in relation to niche development - the 2Close study: a multicentre randomised controlled trial. BMC Pregnancy Childbirth 2019; 19:85. [PMID: 30832681 PMCID: PMC6399840 DOI: 10.1186/s12884-019-2221-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Accepted: 02/12/2019] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Double-layer compared to single-layer closure of the uterus after a caesarean section (CS) leads to a thicker myometrial layer at the site of the CS scar, also called residual myometrium thickness (RMT). It possibly decreases the development of a niche, which is an interruption of the myometrium at the site of the uterine scar. Thin RMT and a niche are associated with gynaecological symptoms, obstetric complications in a subsequent pregnancy and delivery and possibly with subfertility. METHODS Women undergoing a first CS regardless of the gestational age will be asked to participate in this multicentre, double blinded randomised controlled trial (RCT). They will be randomised to single-layer closure or double-layer closure of the uterine incision. Single-layer closure (control group) is performed with a continuous running, unlocked suture, with or without endometrial saving technique. Double-layer closure (intervention group) is performed with the first layer in a continuous unlocked suture including the endometrial layer and the second layer is also continuous unlocked and imbricates the first. The primary outcome is the reported number of days with postmenstrual spotting during one menstrual cycle nine months after CS. Secondary outcomes include surgical data, ultrasound evaluation at three months, menstrual pattern, dysmenorrhea, quality of life, and sexual function at nine months. Structured transvaginal ultrasound (TVUS) evaluation is performed to assess the uterine scar and if necessary saline infusion sonohysterography (SIS) or gel instillation sonohysterography (GIS) will be added to the examination. Women and ultrasound examiners will be blinded for allocation. Reproductive outcomes at three years follow-up including fertility, mode of delivery and complications in subsequent deliveries will be studied as well. Analyses will be performed by intention to treat. 2290 women have to be randomised to show a reduction of 15% in the mean number of spotting days. Additionally, a cost-effectiveness analysis will be performed from a societal perspective. DISCUSSION This RCT will provide insight in the outcomes of single- compared to double-layer closure technique after CS, including postmenstrual spotting and subfertility in relation to niche development measured by ultrasound. TRIAL REGISTRATION Dutch Trial Register ( NTR5480 ). Registered 29 October 2015.
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Affiliation(s)
- S. I. Stegwee
- Department of Obstetrics and Gynaecology, Research institutes ‘Amsterdam Cardiovascular Sciences’ and ‘Amsterdam Reproduction and Development’, Amsterdam UMC, Vrije Universiteit Amsterdam, De Boelelaan 1117, 1081 HV Amsterdam, Netherlands
| | - I. P. M. Jordans
- Department of Obstetrics and Gynaecology, Research institutes ‘Amsterdam Cardiovascular Sciences’ and ‘Amsterdam Reproduction and Development’, Amsterdam UMC, Vrije Universiteit Amsterdam, De Boelelaan 1117, 1081 HV Amsterdam, Netherlands
| | - L. F. van der Voet
- Department of Obstetrics and Gynaecology, Deventer Hospital, Nico Bolkesteinlaan 75, 7416 SE Deventer, the Netherlands
| | - M. Y. Bongers
- Department of Obstetrics and Gynaecology, Máxima Medical Centre, De Run 4600, 5504 DB Veldhoven, the Netherlands
- Department of Obstetrics and Gynaecology, Research school ‘GROW’, Maastricht University Medical Centre, P. Debyelaan 25, 6229 HX Maastricht, the Netherlands
| | - C. J. M. de Groot
- Department of Obstetrics and Gynaecology, Research institutes ‘Amsterdam Cardiovascular Sciences’ and ‘Amsterdam Reproduction and Development’, Amsterdam UMC, Vrije Universiteit Amsterdam, De Boelelaan 1117, 1081 HV Amsterdam, Netherlands
| | - C. B. Lambalk
- Department of Obstetrics and Gynaecology, Research institutes ‘Amsterdam Cardiovascular Sciences’ and ‘Amsterdam Reproduction and Development’, Amsterdam UMC, Vrije Universiteit Amsterdam, De Boelelaan 1117, 1081 HV Amsterdam, Netherlands
| | - R. A. de Leeuw
- Department of Obstetrics and Gynaecology, Research institutes ‘Amsterdam Cardiovascular Sciences’ and ‘Amsterdam Reproduction and Development’, Amsterdam UMC, Vrije Universiteit Amsterdam, De Boelelaan 1117, 1081 HV Amsterdam, Netherlands
| | - W. J. K. Hehenkamp
- Department of Obstetrics and Gynaecology, Research institutes ‘Amsterdam Cardiovascular Sciences’ and ‘Amsterdam Reproduction and Development’, Amsterdam UMC, Vrije Universiteit Amsterdam, De Boelelaan 1117, 1081 HV Amsterdam, Netherlands
| | - P. M. van de Ven
- Department of Epidemiology and Biostatistics, Vrije Universiteit Amsterdam, De Boelelaan 1105, 1081 HV Amsterdam, the Netherlands
| | - J. E. Bosmans
- Department of Health sciences, Faculty of Science, Research institute ‘Amsterdam Public Health’, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081 HV Amsterdam, the Netherlands
| | - E. Pajkrt
- Department of Obstetrics and Gynaecology, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands
| | - E. A. Bakkum
- Department of Obstetrics and Gynaecology, OLVG-oost, Oosterpark 9, 1091 AC Amsterdam, the Netherlands
| | - C. M. Radder
- Department of Obstetrics and Gynaecology, OLVG-west, Jan Tooropstraat 164, 1061 AE Amsterdam, the Netherlands
| | - M. Hemelaar
- Department of Obstetrics and Gynaecology, Westfriesgasthuis, Maelsonstraat 3, 1624 NP Hoorn, the Netherlands
| | - W. M. van Baal
- Department of Obstetrics and Gynaecology, Flevo hospital, Hospitaalweg 1, 1315 RA Almere, the Netherlands
| | - H. Visser
- Department of Obstetrics and Gynaecology, Tergooi hospital, Rijksstraatweg 1, 1261 AN Blaricum, the Netherlands
| | - J. O. E. H. van Laar
- Department of Obstetrics and Gynaecology, Máxima Medical Centre, De Run 4600, 5504 DB Veldhoven, the Netherlands
| | - H. A. A. M. van Vliet
- Department of Obstetrics and Gynaecology, Catharina hospital, Michelangelolaan 2, 5623 EJ Eindhoven, the Netherlands
| | - R. J. P. Rijnders
- Department of Obstetrics and Gynaecology, Jeroen Bosch hospital, Henri Dunantstraat 1, 5223 GZ ‘s-Hertogenbosch, the Netherlands
| | - M. Sueters
- Department of Obstetrics and Gynaecology, Leiden University Medical Centre, Albinusdreef 2, 2333 ZA Leiden, the Netherlands
| | - C. A. H. Janssen
- Department of Obstetrics and Gynaecology, Groene Hart hospital, Bleulandweg 10, 2803 HH Gouda, the Netherlands
| | - W. Hermes
- Department of Obstetrics and Gynaecology, Haaglanden Medical Centre – Westeinde hospital, Lijnbaan 32, 2512 VA Den Haag, the Netherlands
| | - A. H. Feitsma
- Department of Obstetrics and Gynaecology, Haga hospital, Els-Borst-Eilersplein 275, 2545 AA Den Haag, the Netherlands
| | - K. Kapiteijn
- Department of Obstetrics and Gynaecology, Reinier de Graaf hospital, Reinier de Graafweg 5, 2625 AD Delft, the Netherlands
| | - H. C. J. Scheepers
- Department of Obstetrics and Gynaecology, Research school ‘GROW’, Maastricht University Medical Centre, P. Debyelaan 25, 6229 HX Maastricht, the Netherlands
| | - J. Langenveld
- Department of Obstetrics and Gynaecology, Zuyderland Medical Centre, Henri Dunantstraat 5, 6419 PC Heerlen, the Netherlands
| | - K. de Boer
- Department of Obstetrics and Gynaecology, Rijnstate hospital, Wagnerlaan 55, 6815 AD Arnhem, the Netherlands
| | - S. F. P. J. Coppus
- Department of Obstetrics and Gynaecology, Radboud University Nijmegen Medical Centre, Geert Grooteplein Zuid 10, 6525 GA Nijmegen, the Netherlands
| | - D. H. Schippers
- Department of Obstetrics and Gynaecology, Canisius-Wilhelmina hospital, Weg door Jonkerbos 100, 6532 SZ Nijmegen, the Netherlands
| | - A. L. M. Oei
- Department of Obstetrics and Gynaecology, Bernhoven hospital, Nistelrodeseweg 10, 5406 PT Uden, the Netherlands
| | - M. Kaplan
- Department of Obstetrics and Gynaecology, Röpcke-Zweers hospital, Jan Weitkamplaan 4a, 7772 SE Hardenberg, the Netherlands
| | - D. N. M. Papatsonis
- Department of Obstetrics and Gynaecology, Amphia hospital, Langendijk 75, 4819 EV Breda, the Netherlands
| | - L. H. M. de Vleeschouwer
- Department of Obstetrics and Gynaecology, Sint Franciscus hospital, Kleiweg 500, 3045 PM Rotterdam, the Netherlands
| | - E. van Beek
- Department of Obstetrics and Gynaecology, Sint Antonius hospital, Koekoekslaan 1, 3435 CM Nieuwegein, the Netherlands
| | - M. N. Bekker
- Department of Obstetrics and Gynaecology, Birth Centre Wilhelmina Children hospital/University Medical Centre Utrecht, Lundlaan 6, 3584 EA Utrecht, the Netherlands
| | - A. J. M. Huisjes
- Department of Obstetrics and Gynaecology, Gelre hospital – location Apeldoorn, Albert Schweitzerlaan 31, 7334 DZ Apeldoorn, the Netherlands
| | - W. J. Meijer
- Department of Obstetrics and Gynaecology, Gelre hospital – location Zutphen, Den Elterweg 77, 7207 AE Zutphen, the Netherlands
| | - K. L. Deurloo
- Department of Obstetrics and Gynaecology, Diakonessenhuis, Bosboomstraat 1, 3582 KE Utrecht, the Netherlands
| | - E. M. A. Boormans
- Department of Obstetrics and Gynaecology, Meander Medical Centre, Maatweg 3, 3813 TZ Amersfoort, the Netherlands
| | - H. W. F. van Eijndhoven
- Department of Obstetrics and Gynaecology, Isala clinics, Dokter van Heesweg 2, 8025 AB Zwolle, the Netherlands
| | - J. A. F. Huirne
- Department of Obstetrics and Gynaecology, Research institutes ‘Amsterdam Cardiovascular Sciences’ and ‘Amsterdam Reproduction and Development’, Amsterdam UMC, Vrije Universiteit Amsterdam, De Boelelaan 1117, 1081 HV Amsterdam, Netherlands
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Welters S, Teunissen P, Hermes W, Ravelli A, de Groot C. 208. Risk of cardiovascular mortality in women with a history of hypertensive pregnancy disorders: A nationwide cohort study. Pregnancy Hypertens 2018. [DOI: 10.1016/j.preghy.2018.08.093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Wagner MM, Beshay MM, Rooijakkers S, Hermes W, Jukema JW, Le Cessie S, De Groot CJM, Ballieux BEPB, Van Lith JMM, Bloemenkamp KWM. Increased cardiovascular disease risk in women with a history of recurrent miscarriage. Acta Obstet Gynecol Scand 2018; 97:1192-1199. [PMID: 29806956 PMCID: PMC6175487 DOI: 10.1111/aogs.13392] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 05/22/2018] [Indexed: 01/02/2023]
Abstract
INTRODUCTION Cardiovascular disease is the leading cause of death in women. Observational studies suggest that women with a history of recurrent miscarriage have an increased risk of cardiovascular disease. MATERIAL AND METHODS Women who visited the recurrent miscarriage clinic at Leiden University Medical Center between 2000 and 2010 and who had their third consecutive miscarriage before the age of 31 years, were invited to participate in this follow-up study (between 2012 and 2014). The reference group consisted of women with at least one uncomplicated pregnancy and no miscarriage, matched by zip code, age, and date of pregnancy. All women were invited for risk factor screening, including physical examination and blood collection. Main outcome measures were the (extrapolated) 10- and 30-year cardiovascular risk scores using the Framingham risk score. A subanalysis was performed for women with idiopathic recurrent miscarriage. RESULTS Thirty-six women were included in both groups. Mean follow up was 7.5 years. Women with recurrent miscarriage had a significantly higher extrapolated 10-year cardiovascular risk score (mean 6.24%, SD 5.44) compared with women with no miscarriage (mean 3.56%, SD 1.82, P = .007) and a significantly higher 30-year cardiovascular risk score (mean 9.86%, SD 9.10) compared with women with no miscarriage (mean 6.39%, SD 4.20, P = .04). Similar results were found in women with idiopathic recurrent miscarriage (n = 28). CONCLUSIONS Women with a history of recurrent miscarriage differ in cardiovascular risk profile at a young age compared with women with no miscarriage. The findings support an opportunity to identify women at risk of cardiovascular disease later in life and a possible moment for intervention.
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Affiliation(s)
- Marise M Wagner
- Department of Obstetrics, Leiden University Medical Center, Leiden, the Netherlands
| | - Mary M Beshay
- Department of Obstetrics, Leiden University Medical Center, Leiden, the Netherlands
| | - Sophie Rooijakkers
- Department of Obstetrics, Leiden University Medical Center, Leiden, the Netherlands
| | - Wietske Hermes
- Department of Obstetrics and Gynecology, Medical Center Haaglanden, The Hague, the Netherlands
| | - J Wouter Jukema
- Department of Cardiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Saskia Le Cessie
- Department of Clinical Epidemiology and Department of Medical Statistics and Bioinformatics, Leiden University Medical Center, Leiden, the Netherlands
| | - Christianne J M De Groot
- Department of Obstetrics and Gynecology, VU University Medical Center, Amsterdam, the Netherlands
| | - Bart E P B Ballieux
- Department of Clinical Chemistry, Leiden University Medical Center, Leiden, the Netherlands
| | - Jan M M Van Lith
- Department of Obstetrics, Leiden University Medical Center, Leiden, the Netherlands
| | - Kitty W M Bloemenkamp
- Department of Obstetrics Birth Center Wilhelmina's Children Hospital, Division Women and Baby, University Medical Center Utrecht, Utrecht, the Netherlands
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Alma LJ, De Groot CJM, De Menezes RX, Hermes W, Hordijk PL, Kovačević I. Endothelial dysfunction as a long-term effect of late onset hypertensive pregnancy disorders: High BMI is key. Eur J Obstet Gynecol Reprod Biol 2018; 225:62-69. [PMID: 29677687 DOI: 10.1016/j.ejogrb.2018.04.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Revised: 04/04/2018] [Accepted: 04/05/2018] [Indexed: 10/17/2022]
Abstract
OBJECTIVE Hypertensive disorders during pregnancy increase cardiovascular risk later in life by 2 to 9-fold. Endothelial activation is one of the underlying mechanisms of cardiovascular risk. Therefore, we decided to investigate endothelial activation in primiparous women, 2.5 years after a hypertensive pregnancy disorder. STUDY DESIGN Plasma samples were taken from women 2.5 years after gestational hypertension (GH) or late onset preeclampsia (cases) and from women 2.5 years after a normotensive pregnancy (controls). We studied the effects of patient plasma on the endothelial barrier function of primary human umbilical vein endothelial cells (HUVECs) using Electric Cell-Substrate Impedance Sensing (ECIS) and we measured levels of endothelial activation markers soluble intercellular adhesion molecule 1 (sICAM-1) and soluble endothelial selectin (sE-selectin) in the plasma samples of patients. RESULTS Plasma from primiparous women with a history of late onset preeclampsia disrupted the endothelial barrier more than plasma from women with a history of GH. Endothelial resistance was reduced by 22% in samples taken after preeclampsia, 16% after normotensive pregnancy and 3% after GH (p ≤ 0.0001 GH versus preeclampsia and p = 0.0003 versus normotensive pregnancy). We did not find differences in the levels of soluble endothelial activation markers (sICAM-1 p = 0.326 and sE-selectin p = 0.978). However, the BMI ≥25 showed a strong correlation with increased levels of sICAM-1 (p = 0.046) and sE-selectin (p = 0.002). CONCLUSION Our results indicate that GH and late onset preeclampsia are distinct disease entities with a different pathogenic mechanism underlying their cardiovascular risk. Furthermore, this study supports the hypothesis that these two diseases are early manifestations of cardiovascular vulnerability due to an unfavorable risk profile, and that obesity plays a main role. Our results suggest that this high-risk female population would be eligible for preventive care.
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Affiliation(s)
- L J Alma
- Department of Obstetrics and Gynecology, VU University Medical Center, Amsterdam, The Netherlands; Department of Physiology, VU University Medical Center, Amsterdam, The Netherlands
| | - C J M De Groot
- Department of Obstetrics and Gynecology, VU University Medical Center, Amsterdam, The Netherlands
| | - R X De Menezes
- Department of Epidemiology and Biostatistics, VU University Medical Center, Amsterdam, The Netherlands
| | - W Hermes
- Department of Obstetrics and Gynecology, Haaglanden Medical Center, The Hague, The Netherlands
| | - P L Hordijk
- Department of Physiology, VU University Medical Center, Amsterdam, The Netherlands
| | - I Kovačević
- Department of Physiology, VU University Medical Center, Amsterdam, The Netherlands.
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Visser V, Hermes W, Twisk J, Franx A, van Pampus M, Koopmans C, Mol B, de Groot C. Prognostic model for chronic hypertension in women with a history of hypertensive pregnancy disorders at term. Pregnancy Hypertens 2017; 10:118-123. [DOI: 10.1016/j.preghy.2017.07.141] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 05/23/2017] [Accepted: 07/23/2017] [Indexed: 01/06/2023]
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van Hoogenhuijze NE, Torrance HL, Mol F, Laven JSE, Scheenjes E, Traas MAF, Janssen C, Cohlen B, Teklenburg G, de Bruin JP, van Oppenraaij R, Maas JWM, Moll E, Fleischer K, van Hooff MH, de Koning C, Cantineau A, Lambalk CB, Verberg M, Nijs M, Manger AP, van Rumste M, van der Voet LF, Preys-Bosman A, Visser J, Brinkhuis E, den Hartog JE, Sluijmer A, Jansen FW, Hermes W, Bandell ML, Pelinck MJ, van Disseldorp J, van Wely M, Smeenk J, Pieterse QD, Boxmeer JC, Groenewoud ER, Eijkemans MJC, Kasius JC, Broekmans FJM. Endometrial scratching in women with implantation failure after a first IVF/ICSI cycle; does it lead to a higher live birth rate? The SCRaTCH study: a randomized controlled trial (NTR 5342). BMC Womens Health 2017; 17:47. [PMID: 28732531 PMCID: PMC5521151 DOI: 10.1186/s12905-017-0378-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 03/07/2017] [Indexed: 12/17/2022]
Abstract
BACKGROUND Success rates of assisted reproductive techniques (ART) are approximately 30%, with the most important limiting factor being embryo implantation. Mechanical endometrial injury, also called 'scratching', has been proposed to positively affect the chance of implantation after embryo transfer, but the currently available evidence is not yet conclusive. The primary aim of this study is to determine the effect of endometrial scratching prior to a second fresh in vitro fertilization/intracytoplasmic sperm injection (IVF/ICSI) cycle on live birth rates in women with a failed first IVF/ICSI cycle. METHOD Multicenter randomized controlled trial in Dutch academic and non-academic hospitals. A total of 900 women will be included of whom half will undergo an endometrial scratch in the luteal phase of the cycle prior to controlled ovarian hyperstimulation using an endometrial biopsy catheter. The primary endpoint is the live birth rate after the 2nd fresh IVF/ICSI cycle. Secondary endpoints are costs, cumulative live birth rate (after the full 2nd IVF/ICSI cycle and over 12 months of follow-up); clinical and ongoing pregnancy rate; multiple pregnancy rate; miscarriage rate and endometrial tissue parameters associated with implantation failure. DISCUSSION Multiple studies have been performed to investigate the effect of endometrial scratching on live birth rates in women undergoing IVF/ICSI cycles. Due to heterogeneity in both the method and population being scratched, it remains unclear which group of women will benefit from the procedure. The SCRaTCH trial proposed here aims to investigate the effect of endometrial scratching prior to controlled ovarian hyperstimulation in a large group of women undergoing a second IVF/ICSI cycle. TRIAL REGISTRATION NTR 5342 , registered July 31st, 2015. PROTOCOL VERSION Version 4.10, January 4th, 2017.
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Affiliation(s)
- N E van Hoogenhuijze
- University Medical Center Utrecht, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands.
| | - H L Torrance
- University Medical Center Utrecht, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands
| | - F Mol
- Academic Medical Center Amsterdam, Amsterdam, The Netherlands
| | - J S E Laven
- Erasmus Medical Center Rotterdam, Rotterdam, The Netherlands
| | - E Scheenjes
- Gelderse Vallei Hospital, Ede, The Netherlands
| | | | - C Janssen
- Groene Hart Hospital, Gouda, The Netherlands
| | - B Cohlen
- Isala Fertilityclinic, Zwolle, The Netherlands
| | | | - J P de Bruin
- Jeroen Bosch Hospital, Den Bosch, The Netherlands
| | | | - J W M Maas
- Maxima Medical Center, Veldhoven, The Netherlands
| | - E Moll
- Onze Lieve Vrouwe Gasthuis, Amsterdam, The Netherlands
| | - K Fleischer
- Radboud University Medical Center, Nijmegen, The Netherlands
| | | | - C de Koning
- Ter Gooi Hospital, Hilversum, The Netherlands
| | - A Cantineau
- University Medical Center Groningen, Groningen, The Netherlands
| | - C B Lambalk
- Vrije Universiteit Medical Center, Amsterdam, The Netherlands
| | - M Verberg
- Fertility Clinic Twente, Hengelo, The Netherlands
| | - M Nijs
- Nij Geertgen, Elsendorp, The Netherlands
| | - A P Manger
- Diakonessenhuis, Utrecht, The Netherlands
| | | | | | | | - J Visser
- Amphia Hospital, Breda, The Netherlands
| | - E Brinkhuis
- Meander Medical Center, Amersfoort, The Netherlands
| | - J E den Hartog
- Maastricht University Medical Center, Maastricht, The Netherlands
| | - A Sluijmer
- Wilhelmina Hospital Assen, Assen, The Netherlands
| | - F W Jansen
- Leiden University Medical Center, Leiden, The Netherlands
| | - W Hermes
- Medical Center Haaglanden-Bronovo-Nebo, The Hague, The Netherlands
| | - M L Bandell
- Albert Schweitzer Hospital, Sliedrecht, The Netherlands
| | | | | | - M van Wely
- Dutch Consortium for Healthcare Evaluation and Research in Obstetrics and Gynecology - NVOG Consortium 2.0, Dutch, The Netherlands
| | - J Smeenk
- St. Elisabeth-Twee Steden Hospital, Tilburg, The Netherlands
| | | | - J C Boxmeer
- Reinier de Graaf Gasthuis, Delft, The Netherlands
| | | | - M J C Eijkemans
- University Medical Center Utrecht, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands
| | - J C Kasius
- University Medical Center Utrecht, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands
| | - F J M Broekmans
- University Medical Center Utrecht, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands
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Bokslag A, Hermes W, de Groot CJM, Teunissen PW. Reduction of cardiovascular risk after preeclampsia: the role of framing and perceived probability in modifying behavior. Hypertens Pregnancy 2016; 35:470-473. [PMID: 27314519 DOI: 10.1080/10641955.2016.1185112] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
OBJECTIVE To reduce cardiovascular risk after preeclampsia, we investigated the effect of framing, the perceived probability and its interaction, on the willingness to modify behavior. METHODS Participants scored their willingness to modify behavior on two cases with different probabilities of developing cardiovascular disease. Both cases were either presented as "chance of health" or "risk of disease". RESULTS 165 questionnaires were analyzed. ANOVA revealed a significant effect of probability, non-significant effect of framing and a non-significant interaction between probability and framing. CONCLUSION Perceived probability influences willingness to modify behavior to reduce cardiovascular risk after preeclampsia; framing and the interaction was not of influence.
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Affiliation(s)
- Anouk Bokslag
- a Department of Obstetrics and Gynecology , VU University Medical Center , Amsterdam , The Netherlands
| | - Wietske Hermes
- b Department of Obstetrics and Gynecology , Medical Centre Haaglanden , The Hague , The Netherlands
| | - Christianne J M de Groot
- a Department of Obstetrics and Gynecology , VU University Medical Center , Amsterdam , The Netherlands
| | - Pim W Teunissen
- a Department of Obstetrics and Gynecology , VU University Medical Center , Amsterdam , The Netherlands.,c Faculty of Health, Medicine and Life Sciences , Maastricht University , Maastricht , The Netherlands
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van Kesteren F, Visser S, Hermes W, Teunissen PW, Franx A, van Pampus MG, Mol BW, de Groot CJ. Counselling and management of cardiovascular risk factors after preeclampsia. Hypertens Pregnancy 2016; 35:55-61. [DOI: 10.3109/10641955.2015.1100311] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Floortje van Kesteren
- Department of Obstetrics and Gynaecology, VU Medical Centre, Amsterdam, The Netherlands
- Heart Centre, Academic Medical Centre, Amsterdam, The Netherlands
| | - Sanne Visser
- Department of Obstetrics and Gynaecology, VU Medical Centre, Amsterdam, The Netherlands
- Department of Obstetrics and Gynaecology, Zaans Medical Centre Zaandam, The Netherlands
| | - Wietske Hermes
- Department of Obstetrics, Leiden University Medical Centre, Leiden, The Netherlands
- Department of Obstetrics and Gynaecology, Medical Centre Haaglanden, The Hague, The Netherlands
| | - Pim W. Teunissen
- Department of Obstetrics and Gynaecology, VU Medical Centre, Amsterdam, The Netherlands
- School of Health Professions Education, Maastricht University, Maastricht, The Netherlands
| | - Arie Franx
- Department of Obstetrics, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Maria G. van Pampus
- Department of Obstetrics and Gynaecology, Onze Lieve Vrouwe Gasthuis, Amsterdam, The Netherlands
| | - Ben W. Mol
- Robinson Research Institute, University of Adelaide, Adelaide, Australia
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Visser S, Hermes W, Blom HJ, Heijboer AC, Franx A, Van Pampus MG, Bloemenkamp KWM, Koopmans C, Mol BWJ, De Groot CJM. Homocysteinemia After Hypertensive Pregnancy Disorders at Term. J Womens Health (Larchmt) 2015; 24:524-9. [PMID: 26070038 DOI: 10.1089/jwh.2015.5201] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Results from a number of long-term follow-up studies have suggested that hypertensive disorders in pregnancy are associated with increased risk of cardiovascular disease later in life. More recently, this putative relationship has been substantiated with findings of elevated cardiovascular risk factors, such as lipid profiles and glucose, in women with a history of hypertensive pregnancy disorders. Homocysteine is a sensitive indicator of increased risk but data on homocysteine levels in women with a history of hypertensive pregnancy disorders are inconsistent. DESIGN This cohort study included 279 women with a history of hypertensive pregnancy disorders at term and 85 women with a history of uncomplicated pregnancies who participated in the Hypitat Risk Assessment Study (HyRAS). METHODS Blood samples for total homocysteine determination were taken 2.5 years postpartum. Homocysteine levels were determined in plasma using an immunoassay. RESULTS Women with a history of hypertensive pregnancy disorders had significant higher median homocysteine levels (10.66 μmol/L) 2.5 years postpartum compared with women with a history uncomplicated pregnancies (9.82 μmol/L; p=0.002). Women with a history of hypertensive pregnancy disorders had a higher risk of having a homocysteine level in the highest quartile (odds ratio 3.4, 95% confidence interval 1.5-7.6). CONCLUSION At 2.5 years postpartum, women with a history hypertensive pregnancy disorders had higher homocysteine levels than women who had uncomplicated pregnancies. Although higher homocysteine levels might be a potential link between a history of hypertensive pregnancy disorders and increased cardiovascular disease risk later in life, the clinical implications remain an area for future research.
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Affiliation(s)
- Sanne Visser
- 1 Department of Obstetrics and Gynecology, VU University Medical Centre , Amsterdam, The Netherlands .,2 Department of Obstetrics and Gynecology, Zaans Medical Centre , Zaandam, The Netherlands
| | - Wietske Hermes
- 3 Department of Obstetrics and Gynecology, Medical Center Haaglanden , The Hague, The Netherlands
| | - Henk J Blom
- 4 Labor für Klinische Biochemie und Stoffwechsel , Zentrum für Kinder- und Jugendmedizin, Freiburg, Germany
| | - Annemieke C Heijboer
- 5 Department of Clinical Chemistry, VU University Medical Centre , Amsterdam, The Netherlands
| | - Arie Franx
- 6 Division of Woman and Baby, University Medical Center Utrecht , Utrecht, The Netherlands
| | - Maria G Van Pampus
- 7 Department of Obstetrics and Gynecology, Onze Lieve Vrouwe Gasthuis, Amsterdam, The Netherlands
| | - Kitty W M Bloemenkamp
- 8 Department of Obstetrics and Gynecology, University Medical Centre Leiden , Leiden, The Netherlands
| | - Corine Koopmans
- 9 Department of Obstetrics and Gynecology, University Medical Centre Groningen , Groningen, The Netherlands
| | - Ben Willem J Mol
- 10 Department of Obstetrics and Gynecology, University of Adelaide , Adelaide, Australia
| | - Christianne J M De Groot
- 1 Department of Obstetrics and Gynecology, VU University Medical Centre , Amsterdam, The Netherlands
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Hermes W, Van Kesteren F, Van Pampus M, Bloemenkamp K, Franx A, Mol B, De Groot C. P100. Differences in depression scores between women with a history of term hypertensive pregnancy disorders and women with a history of uncomplicated pregnancies. Pregnancy Hypertens 2015. [DOI: 10.1016/j.preghy.2015.07.118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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van Gendt AW, van der Pal SM, Hermes W, Walther FJ, van der Pal-de Bruin KM, de Groot CJM. Reproductive outcomes of women and men born very preterm and/or with a very low birth weight in 1983: a longitudinal cohort study in the Netherlands. Eur J Pediatr 2015; 174:819-25. [PMID: 25504200 DOI: 10.1007/s00431-014-2470-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Revised: 11/24/2014] [Accepted: 12/01/2014] [Indexed: 01/13/2023]
Abstract
UNLABELLED The aims of this study were to analyze reproductive outcomes of women and men born very preterm (gestational age <32 weeks) or with a very low birth weight (<1500 g) in 1983 in the Netherlands and to compare their reproductive outcomes with the total population at a similar age of 28 years. Young adults who were born after a pregnancy complicated by very preterm (VP) delivery or with a very low birth weight (VLBW) in the Netherlands in 1983 (Project on Preterm and Small for Gestational Age Infants (POPS) cohort) were invited to complete an online questionnaire at the age of 28. In total, 293 POPS-28 participants (31.6%) completed the questionnaire including 185 female and 108 male participants. Female and male participants who were born VP or with a VLBW had significant reduced reproductive rates compared to the total Dutch population at 28 years of age (female 23.2 vs 31.9% and male 7.4 vs 22.2%). Pregnancies of the female participants were in 14% complicated by preterm delivery in at least one pregnancy. CONCLUSION This study indicates that women and men born VP or with a VLBW have reduced reproductive rates at the age of 28 compared to the total Dutch population at a similar age.
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Affiliation(s)
- A W van Gendt
- Leiden University Medical Center (LUMC), Leiden, The Netherlands,
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van Kesteren F, Visser S, Hermes W, Franx A, van Pampus MG, Poppel MNM, Tamsma JT, Mol BW, de Groot CJ. Prevention of cardiovascular risk in women who had hypertension during pregnancy after 36 weeks gestation. Hypertens Pregnancy 2015; 34:261-9. [PMID: 25815424 DOI: 10.3109/10641955.2015.1009544] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE To analyse preventive interventions of women with cardiovascular risk factors postpartum. METHODS 3.5 years postpartum, women with history of hypertension in pregnancy were invited for a questionnaire, 1 year after a cardiovascular risk assessment. RESULTS Two hundred and fifty-seven women completed the questionnaire. At risk factor analyses, 35% had hypertension, 37% abnormal lipid- or glucose levels, 63% BMI ≥ 25 and 19% smoked. One year later, 36% of women with hypertension used anti-hypertensives, 0% of women with abnormal laboratory findings used anti-cholesterol and 1% anti-diabetes medication, 31% of the obese women achieved BMI reduction (≥ 5%), 42% of the women who smoked, quit. CONCLUSION A minority improved their risk profile.
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Affiliation(s)
- Floortje van Kesteren
- Department of Obstetrics and Gynaecology, VU Medical Center , Amsterdam , The Netherlands
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Veerbeek JH, Hermes W, Breimer AY, van Rijn BB, Koenen SV, Mol BW, Franx A, de Groot CJ, Koster MP. Cardiovascular Disease Risk Factors After Early-Onset Preeclampsia, Late-Onset Preeclampsia, and Pregnancy-Induced Hypertension. Hypertension 2015; 65:600-6. [DOI: 10.1161/hypertensionaha.114.04850] [Citation(s) in RCA: 196] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Observational studies have shown an increased lifetime risk of cardiovascular disease (CVD) in women who experienced a hypertensive disorder in pregnancy. This risk is related to the severity of the pregnancy-related hypertensive disease and gestational age at onset. However, it has not been investigated whether these differences in CVD risk factors are already present at postpartum cardiovascular screening. We evaluated postpartum differences in CVD risk factors in 3 subgroups of patients with a history of hypertensive pregnancy. We compared the prevalence of common CVD risk factors postpartum among 448 women with previous early-onset preeclampsia, 76 women with previous late-onset preeclampsia, and 224 women with previous pregnancy-induced hypertension. Women with previous early-onset preeclampsia were compared with women with late-onset preeclampsia and pregnancy-induced hypertension and had significantly higher fasting blood glucose (5.29 versus 4.80 and 4.83 mmol/L), insulin (9.12 versus 6.31 and 6.7 uIU/L), triglycerides (1.32 versus 1.02 and 0.97 mmol/L), and total cholesterol (5.14 versus 4.73 and 4.73 mmol/L). Almost half of the early-onset preeclampsia women had developed hypertension, as opposed to 39% and 25% of women in the pregnancy-induced hypertension and late-onset preeclampsia groups, respectively. Our data show differences in the prevalence of common modifiable CVD risk factors postpartum and suggest that prevention strategies should be stratified according to severity and gestational age of onset for the hypertensive disorders of pregnancy.
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Affiliation(s)
- Jan H.W. Veerbeek
- From the Division of Woman and Baby, Department of Obstetrics, University Medical Center Utrecht, Utrecht, The Netherlands (J.H.W.V., A.Y.B., B.B.v.R., S.V.K., A.F., M.P.H.K.); Department of Obstetrics and Gynecology, Medical Center Haaglanden, The Hague, The Netherlands (W.H.); Department of Obstetrics and Gynecology, Leiden University Medical Center, Leiden, The Netherlands (W.H., C.J.M.d.G.); The Robinson Institute, School of Paediatrics and Reproductive Health, University of Adelaide, South
| | - Wietske Hermes
- From the Division of Woman and Baby, Department of Obstetrics, University Medical Center Utrecht, Utrecht, The Netherlands (J.H.W.V., A.Y.B., B.B.v.R., S.V.K., A.F., M.P.H.K.); Department of Obstetrics and Gynecology, Medical Center Haaglanden, The Hague, The Netherlands (W.H.); Department of Obstetrics and Gynecology, Leiden University Medical Center, Leiden, The Netherlands (W.H., C.J.M.d.G.); The Robinson Institute, School of Paediatrics and Reproductive Health, University of Adelaide, South
| | - Anath Y. Breimer
- From the Division of Woman and Baby, Department of Obstetrics, University Medical Center Utrecht, Utrecht, The Netherlands (J.H.W.V., A.Y.B., B.B.v.R., S.V.K., A.F., M.P.H.K.); Department of Obstetrics and Gynecology, Medical Center Haaglanden, The Hague, The Netherlands (W.H.); Department of Obstetrics and Gynecology, Leiden University Medical Center, Leiden, The Netherlands (W.H., C.J.M.d.G.); The Robinson Institute, School of Paediatrics and Reproductive Health, University of Adelaide, South
| | - Bas B. van Rijn
- From the Division of Woman and Baby, Department of Obstetrics, University Medical Center Utrecht, Utrecht, The Netherlands (J.H.W.V., A.Y.B., B.B.v.R., S.V.K., A.F., M.P.H.K.); Department of Obstetrics and Gynecology, Medical Center Haaglanden, The Hague, The Netherlands (W.H.); Department of Obstetrics and Gynecology, Leiden University Medical Center, Leiden, The Netherlands (W.H., C.J.M.d.G.); The Robinson Institute, School of Paediatrics and Reproductive Health, University of Adelaide, South
| | - Steven V. Koenen
- From the Division of Woman and Baby, Department of Obstetrics, University Medical Center Utrecht, Utrecht, The Netherlands (J.H.W.V., A.Y.B., B.B.v.R., S.V.K., A.F., M.P.H.K.); Department of Obstetrics and Gynecology, Medical Center Haaglanden, The Hague, The Netherlands (W.H.); Department of Obstetrics and Gynecology, Leiden University Medical Center, Leiden, The Netherlands (W.H., C.J.M.d.G.); The Robinson Institute, School of Paediatrics and Reproductive Health, University of Adelaide, South
| | - Ben W. Mol
- From the Division of Woman and Baby, Department of Obstetrics, University Medical Center Utrecht, Utrecht, The Netherlands (J.H.W.V., A.Y.B., B.B.v.R., S.V.K., A.F., M.P.H.K.); Department of Obstetrics and Gynecology, Medical Center Haaglanden, The Hague, The Netherlands (W.H.); Department of Obstetrics and Gynecology, Leiden University Medical Center, Leiden, The Netherlands (W.H., C.J.M.d.G.); The Robinson Institute, School of Paediatrics and Reproductive Health, University of Adelaide, South
| | - Arie Franx
- From the Division of Woman and Baby, Department of Obstetrics, University Medical Center Utrecht, Utrecht, The Netherlands (J.H.W.V., A.Y.B., B.B.v.R., S.V.K., A.F., M.P.H.K.); Department of Obstetrics and Gynecology, Medical Center Haaglanden, The Hague, The Netherlands (W.H.); Department of Obstetrics and Gynecology, Leiden University Medical Center, Leiden, The Netherlands (W.H., C.J.M.d.G.); The Robinson Institute, School of Paediatrics and Reproductive Health, University of Adelaide, South
| | - Christianne J.M. de Groot
- From the Division of Woman and Baby, Department of Obstetrics, University Medical Center Utrecht, Utrecht, The Netherlands (J.H.W.V., A.Y.B., B.B.v.R., S.V.K., A.F., M.P.H.K.); Department of Obstetrics and Gynecology, Medical Center Haaglanden, The Hague, The Netherlands (W.H.); Department of Obstetrics and Gynecology, Leiden University Medical Center, Leiden, The Netherlands (W.H., C.J.M.d.G.); The Robinson Institute, School of Paediatrics and Reproductive Health, University of Adelaide, South
| | - Maria P.H. Koster
- From the Division of Woman and Baby, Department of Obstetrics, University Medical Center Utrecht, Utrecht, The Netherlands (J.H.W.V., A.Y.B., B.B.v.R., S.V.K., A.F., M.P.H.K.); Department of Obstetrics and Gynecology, Medical Center Haaglanden, The Hague, The Netherlands (W.H.); Department of Obstetrics and Gynecology, Leiden University Medical Center, Leiden, The Netherlands (W.H., C.J.M.d.G.); The Robinson Institute, School of Paediatrics and Reproductive Health, University of Adelaide, South
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Krez J, Balke B, Ouardi S, Selle S, Höche T, Felser C, Hermes W, Schwind M. Long-term stability of phase-separated half-Heusler compounds. Phys Chem Chem Phys 2015; 17:29854-8. [DOI: 10.1039/c4cp04875j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The long-term stability of n- and p-type thermoelectric half-Heusler materials is investigated. The dendritic microstructure is temperature resistant and maintained the low thermal conductivity values (κ < 4 W m−1 K−1) even after 500 heating and cooling cycles.
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Affiliation(s)
- J. Krez
- Institute for Inorganic and Analytical Chemistry
- Johannes Gutenberg University Mainz
- 55128 Mainz
- Germany
- Graduate School for Excellence Materials Science in Mainz
| | - B. Balke
- Institute for Inorganic and Analytical Chemistry
- Johannes Gutenberg University Mainz
- 55128 Mainz
- Germany
| | - S. Ouardi
- Max Planck Institute for Chemical Physics of Solids
- 01187 Dresden
- Germany
| | - S. Selle
- Fraunhofer Institut für Werkstoffmechanik
- 06120 Halle
- Germany
| | - T. Höche
- Fraunhofer Institut für Werkstoffmechanik
- 06120 Halle
- Germany
| | - C. Felser
- Max Planck Institute for Chemical Physics of Solids
- 01187 Dresden
- Germany
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van Gendt A, van der Pal S, Hermes W, Walther F, van der Pal - de Bruin K, de Groot C. 518: Reproductive outcomes of women and men born very preterm and/or with a very low birth weight in 1983: a longitudinal cohort study in the Netherlands. Am J Obstet Gynecol 2014. [DOI: 10.1016/j.ajog.2013.10.551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Hermes W, Koopmans CM, van Pampus MG, Franx A, Bloemenkamp KWM, van der Post J, Porath M, Tamsma JT, Mol BW, de Groot CJM. Induction of labour or expectant monitoring in hypertensive pregnancy disorders at term: do women's postpartum cardiovascular risk factors differ between the two strategies? Eur J Obstet Gynecol Reprod Biol 2013; 171:30-4. [PMID: 24011382 DOI: 10.1016/j.ejogrb.2013.08.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2013] [Revised: 07/09/2013] [Accepted: 08/05/2013] [Indexed: 11/29/2022]
Abstract
OBJECTIVE Cardiovascular disease (CVD) is the leading cause of death in women in the western world. Several studies have described the association between hypertensive pregnancy disorders and CVD in later life. Our aim was to compare postpartum cardiovascular risk factors in women who had a shorter and women who had a longer exposure to endothelial activation during their term hypertensive pregnancy. STUDY DESIGN We studied a subsample of women with pregnancy-induced hypertension or mild preeclampsia at term, who had participated in the randomized HYPITAT trial comparing induction of labour (IOL cohort) (n=110) or expectant monitoring (EM cohort) (n = 91). We assessed, 2.5 years postpartum, cardiovascular risk factors, i.e. blood pressure, anthropometrics, glucose, HbA1C, insulin, HOMA score, total cholesterol, HDL cholesterol, triglycerides, high sensitive CRP, micro-albumin and metabolic syndrome, and compared these risk factors between the induction and expectant groups. RESULTS The mean time from randomization to delivery was 3.3 days in the induction group and 10.3 days in the expectant group (p<.001), generating a difference in exposure of 7 days. After a mean follow-up period of 2.5 years, the prevalence of hypertension (IOL 34%; EM 37%, p = .66) and metabolic syndrome (IOL 26%; EM 27%, p = 1.0) was similar in both groups. Furthermore, systolic and diastolic blood pressure, BMI, waist circumference, glucose, HbA1C, insulin, HOMA score, lipids, HsCRP-levels and micro-albumin were all comparable between women who had induction of labour and those who had expectant monitoring. CONCLUSION In women with hypertensive disorders in pregnancy at term, induction of labour does not affect the clinical and biochemical cardiovascular profile at 2.5 years postpartum.
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Affiliation(s)
- Wietske Hermes
- Department of Obstetrics and Gynecology, Medical Center Haaglanden, The Hague, The Netherlands; Department of Obstetrics, VU University Medical Center, Amsterdam, The Netherlands.
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Visser VS, Hermes W, Franx A, Koopmans CM, van Pampus MG, Mol BW, de Groot CJM. High blood pressure six weeks postpartum after hypertensive pregnancy disorders at term is associated with chronic hypertension. Pregnancy Hypertens 2013; 3:242-7. [PMID: 26103803 DOI: 10.1016/j.preghy.2013.07.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Accepted: 07/25/2013] [Indexed: 10/26/2022]
Abstract
OBJECTIVES Hypertension in pregnancy is associated with cardiovascular disease (CVD) later in life. Blood pressure monitoring in women who experienced hypertension in pregnancy after puerperium has been suggested to be important for early detection and prevention of CVD. The aim of this study is to evaluate if hypertension six weeks postpartum is associated with chronic hypertension in women with a history of term hypertensive pregnancy disorders. STUDY DESIGN Women with a history of term gestational hypertension or preeclampsia were included in a follow up study of the HYPITAT trial. Blood pressures were measured six weeks and 2.5years postpartum according to the study protocol. MAIN OUTCOME MEASURES Hypertension was defined as a diastolic blood pressure ⩾90mmHg and/or a systolic blood pressure ⩾140mmHg or use of antihypertensive medication. Differences in categorical variables between groups were analyzed by Chi-Square tests. Blood pressure was analyzed using unpaired t-tests and Wilcox ranked tests. RESULTS Among 187 women who had term hypertensive pregnancy disorders, 75 (40%) had hypertension at six weeks postpartum. Of these 46 (61%) had hypertension 2.5years postpartum. In contrast, of 112 women without hypertension at six weeks postpartum, 36 (32%) had hypertension 2.5years (OR 3.3, 95% CI 1.8-6.2). CONCLUSION Among 61% of women who had hypertensive pregnancy disorders at term, high blood pressure at six weeks postpartum indicated chronic hypertension. This warrants the importance of identification of hypertension 6weeks postpartum for women's future health.
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Affiliation(s)
- V S Visser
- Obstetrics and Gynaecology, VU University Medical Centre, Amsterdam, The Netherlands; Obstetrics and Gynaecology, Onze Lieve Vrouwe Gasthuis, Amsterdam, The Netherlands.
| | - W Hermes
- Obstetrics and Gynaecology, VU University Medical Centre, Amsterdam, The Netherlands; Obstetrics and Gynaecology, Medical Centre Haaglanden, The Netherlands
| | - A Franx
- Obstetrics and Gyanecology, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - C M Koopmans
- Obstetrics and Gynaecology, University Medical Centre Groningen, Groningen, The Netherlands
| | - M G van Pampus
- Obstetrics and Gynaecology, Onze Lieve Vrouwe Gasthuis, Amsterdam, The Netherlands
| | - B W Mol
- Obstetrics and Gynaecology, Amsterdam Medical Centre, Amsterdam, The Netherlands
| | - C J M de Groot
- Obstetrics and Gynaecology, VU University Medical Centre, Amsterdam, The Netherlands
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Hermes W, Tamsma JT, Grootendorst DC, Franx A, van der Post J, van Pampus MG, Bloemenkamp KW, Porath M, Mol BW, de Groot CJM. Cardiovascular risk estimation in women with a history of hypertensive pregnancy disorders at term: a longitudinal follow-up study. BMC Pregnancy Childbirth 2013; 13:126. [PMID: 23734952 PMCID: PMC3680191 DOI: 10.1186/1471-2393-13-126] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Accepted: 05/23/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Cardiovascular disease is associated with major morbidity and mortality in women in the Western world. Prediction of an individual cardiovascular disease risk in young women is difficult. It is known that women with hypertensive pregnancy complications have an increased risk for developing cardiovascular disease in later life and pregnancy might be used as a cardiovascular stress test to identify women who are at high risk for cardiovascular disease. In this study we assess the possibility of long term cardiovascular risk prediction in women with a history of hypertensive pregnancy disorders at term. METHODS In a longitudinal follow-up study, between June 2008 and November 2010, 300 women with a history of hypertensive pregnancy disorders at term (HTP cohort) and 94 women with a history of normotensive pregnancies at term (NTP cohort) were included. From the cardiovascular risk status that was known two years after index pregnancy we calculated individual (extrapolated) 10-and 30-year cardiovascular event risks using four different risk prediction models including the Framingham risk score, the SCORE score and the Reynolds risk score. Continuous data were analyzed using the Student's T test and Mann-Whitney U test and categorical data by the Chi-squared test. A poisson regression analysis was performed to calculate the incidence risk ratios and corresponding 95% confidence intervals for the different cardiovascular risk estimation categories. RESULTS After a mean follow-up of 2.5 years, HTP women had significantly higher mean (SD) extrapolated 10-year cardiovascular event risks (HTP 7.2% (3.7); NTP 4.4% (1.9) (p<.001, IRR 5.8, 95% CI 1.9 to 19)) and 30-year cardiovascular event risks (HTP 11% (7.6); NTP 7.3% (3.5) (p<.001, IRR 2.7, 95% CI 1.6 to 4.5)) as compared to NTP women calculated by the Framingham risk scores. The SCORE score and the Reynolds risk score showed similar significant results. CONCLUSIONS Women with a history of gestational hypertension or preeclampsia at term have higher predicted (extrapolated) 10-year and 30-year cardiovascular event risks as compared to women with a history of uncomplicated pregnancies. Further large prospective studies have to evaluate whether hypertensive pregnancy disorders have to be included as an independent variable in cardiovascular risk prediction models for women.
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Hermes W, Franx A, van Pampus MG, Bloemenkamp KW, Bots ML, van der Post JA, Porath M, Ponjee GA, Tamsma JT, Mol BWJ, de Groot CJ. Cardiovascular risk factors in women who had hypertensive disorders late in pregnancy: a cohort study. Am J Obstet Gynecol 2013; 208:474.e1-8. [PMID: 23399350 DOI: 10.1016/j.ajog.2013.02.016] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2012] [Revised: 12/25/2012] [Accepted: 02/06/2013] [Indexed: 11/24/2022]
Abstract
OBJECTIVE The purpose of this study was to determine cardiovascular risk factors in women with a history of hypertensive pregnancy disorders at term (HTP) 2.5 years after pregnancy. STUDY DESIGN In a multicenter cohort study in The Netherlands from June 2008 through November 2010, cardiovascular risk factors were compared between women with a history of HTP (HTP cohort, n = 306) and women with a history of normotensive pregnancies at term (NTP cohort, n = 99). HTP women had participated in a randomized, longitudinal trial assessing the effectiveness of induction of labor in women with hypertensive pregnancy disorders at term. All women were assessed 2.5 years after pregnancy for blood pressure, anthropometrics, glucose, glycosylated hemoglobin, insulin, homeostatic model assessment score, total cholesterol, high-density lipoprotein cholesterol, triglycerides, high-sensitivity C-reactive protein, and microalbumin and metabolic syndrome. RESULTS After a mean follow-up period of 2.5 years, hypertension (HTP, 34%; NTP, 1%; P < .001) and metabolic syndrome (HTP, 25%; NTP, 5%; P < .001) were more prevalent in HTP women compared with NTP women. HTP women had significantly higher systolic and diastolic blood pressure, higher body mass index, and higher waist circumference. Glucose, glycosylated hemoglobin, insulin, homeostatic model assessment score, total cholesterol, triglycerides, and high-sensitivity C-reactive protein levels were significantly higher and high-density lipoprotein cholesterol was significantly lower in HTP women. CONCLUSION In women with a history of HTP, hypertension and metabolic syndrome are more common, and they have higher levels of biochemical cardiovascular risk factors 2.5 years after pregnancy.
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Hermes W, Van Kesteren F, De Groot CJM. Preeclampsia and cardiovascular risk. Minerva Ginecol 2012; 64:281-292. [PMID: 22728573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The association between preeclampsia and cardiovascular disease has been an increasing area of interest over the last years. Cardiovascular disease is the number one cause of death in women in the western world and more women than men die of heart disease each year. The most common pregnancy disorder is preeclampsia. Preeclampsia is defined by hypertension and de novo proteinuria and remains responsible for high maternal and fetal morbidity and mortality worldwide. Pregnancy has been described as a "stress test" for future cardiovascular disease, to identify women young enough to benefit from screening. Women with a history of early onset (severe) preeclampsia have the highest risk of cardiovascular disease later. However, the exact underlying link between the two disorders is still unknown. In this review we describe different facets of the association between preeclampsia and cardiovascular disease and we give an overview of the recent literature.
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Affiliation(s)
- W Hermes
- Department of Obstetrics and Gynecology, Medical Center Haaglanden and Vu University Medical CenterThe Hague, the Netherlands.
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Breimer AY, Koster WP, Hermes W, de Groot CJ, Mol BW, van Rijn BB, Franx A. OS023. Postpartum cardiovascular disease risk factors in women with ahistory of early onset preeclampsia, late onset preeclampsia and pregnancy induced hypertension. Pregnancy Hypertens 2012; 2:188. [PMID: 26105237 DOI: 10.1016/j.preghy.2012.04.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
INTRODUCTION Cardiovascular disease (CVD) is the leading cause of mortality and morbidity in women. Epidemiological studies have shown an increased risk of a CVD event in women who have had a hypertensive disorder in one of their previous pregnancies. These data also suggest that these increased risks are associated with severity and time of onset of pre-eclampsia. Risk factors for CVD have not yet been compared between women who experienced early versus late and mild versus severe hypertensive disorders of pregnancy. OBJECTIVES In this study we compared classic CVD risk factors of postpartum women with previous early-onset preeclampsia (EOPE), late onset pre-eclampsia (LOPE) and pregnancy induced hypertension (PIH). METHODS A total of 81 women with previous EOPE (delivery required ⩽34weeks), 76 with LOPE (delivery ⩾36weeks) and 229 with PIH were included along with 79 healthy controls. Statistical analyses were performed using generalized linear models in PASW statistics 17.0, SPSS Inc. RESULTS Adjusted means of blood pressure, fasting plasma glucose levels and LDL levels were significantly increased after all hypertensive disorders of pregnancy compared to controls. This increase of CVD risk factors was significantly correlated with severity and time of onset of the disease (Table 1). The prevalence of metabolic syndrome (BMI>30kg/m(2) and ⩾2 of the following; triglycerides ⩾150mg/dl, HDL cholesterol ⩾50mg/dl, systolic blood pressure ⩾130 or diastolic blood pressure ⩾85 and fasting plasma glucose levels ⩾100mg/dl) did not differ between the study groups; women who had PIH had the highest number of components of the metabolic syndrome (). CONCLUSION These results further establish the predisposition to CVD in women with previous pre-eclampsia or PIH. EOPE is associated with a more pronounced CVD risk factor profile than LOPE or PIH, which may explain the previously described higher CVD event risk.
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Affiliation(s)
- A Y Breimer
- Woman and Baby, University Medical Centre Utrecht, Utrecht, Netherlands
| | - W P Koster
- Woman and Baby, University Medical Centre Utrecht, Utrecht, Netherlands
| | - W Hermes
- Obstetrics, Leiden University Medical Centre, Leiden, Netherlands
| | - C J de Groot
- Obstetrics, Free University Medical Centre Amsterdam, Netherlands
| | - B W Mol
- Obstetrics, Academic Medical Centre Amsterdam, Amsterdam, Netherlands
| | - B B van Rijn
- Woman and Baby, University Medical Centre Utrecht, Utrecht, Netherlands
| | - A Franx
- Woman and Baby, University Medical Centre Utrecht, Utrecht, Netherlands
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Kesteren FV, Visser VS, Hermes W, Franx A, Bloemenkamp KWM, Pampus MGV, Mol BW, deGroot CJM. O22. Secondary preventive interventions of cardiovascular risk in women who had hypertension during pregnancy after 36 weeks gestation. Pregnancy Hypertens 2011; 1:267-8. [PMID: 26009084 DOI: 10.1016/j.preghy.2011.08.054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- F V Kesteren
- Obstetrics and Gynaecology, LUMC, Leiden, VUMC, Amsterdam
| | - V S Visser
- Obstetrics and Gynaecology, MCHaaglanden, The Hague
| | - W Hermes
- Obstetrics and Gynaecology, LUMC, Leiden
| | - A Franx
- Obstetrics and Gynaecology, UMCU, Utrecht
| | | | | | - B W Mol
- Obstetrics and Gynaecology, AMC, Amsterdam
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Weber D, Stork A, Nakhal S, Wessel C, Reimann C, Hermes W, Müller A, Ressler T, Pöttgen R, Bredow T, Dronskowski R, Lerch M. Bixbyite-Type V2O3—A Metastable Polymorph of Vanadium Sesquioxide. Inorg Chem 2011; 50:6762-6. [DOI: 10.1021/ic200799n] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- D. Weber
- Institut für Chemie, TU Berlin, Strasse des 17. Juni 135, D-10623 Berlin, Germany
| | - A. Stork
- Institut für Chemie, TU Berlin, Strasse des 17. Juni 135, D-10623 Berlin, Germany
| | - S. Nakhal
- Institut für Chemie, TU Berlin, Strasse des 17. Juni 135, D-10623 Berlin, Germany
| | - C. Wessel
- Institut für Anorganische Chemie, RWTH Aachen University, Landoltweg 1, D-52056 Aachen, Germany
| | - C. Reimann
- Institut für Physikalische und Theoretische Chemie, Universität Bonn, Wegelerstrasse 12, D-53115 Bonn, Germany
| | - W. Hermes
- Institut für Anorganische und Analytische Chemie, Universität Münster, Corrensstrasse 30, D-48149 Münster, Germany
| | - A. Müller
- Institut für Chemie, TU Berlin, Strasse des 17. Juni 135, D-10623 Berlin, Germany
| | - T. Ressler
- Institut für Chemie, TU Berlin, Strasse des 17. Juni 135, D-10623 Berlin, Germany
| | - R. Pöttgen
- Institut für Anorganische und Analytische Chemie, Universität Münster, Corrensstrasse 30, D-48149 Münster, Germany
| | - T. Bredow
- Institut für Physikalische und Theoretische Chemie, Universität Bonn, Wegelerstrasse 12, D-53115 Bonn, Germany
| | - R. Dronskowski
- Institut für Anorganische Chemie, RWTH Aachen University, Landoltweg 1, D-52056 Aachen, Germany
| | - M. Lerch
- Institut für Chemie, TU Berlin, Strasse des 17. Juni 135, D-10623 Berlin, Germany
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Hermes W, Franx A, de Bok F, Loix S, Mol BW, de Groot C, van Pampus M, Bloemenkamp K, van der Post J, Porath M, van der Hout E, ten Horn H. 799: The hypertension risk assessment study (HyRAS). Am J Obstet Gynecol 2011. [DOI: 10.1016/j.ajog.2010.10.821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Hermes W, Dollé M, Galy J, Lidin S, Rozier P. The composite structure of Ag 0.5Cu 0.5V 2O 5. Acta Crystallogr A 2010. [DOI: 10.1107/s0108767310098636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Hermes W, Franx A, van Pampus MG, Bloemenkamp KW, van der Post JA, Porath M, Ponjee G, Tamsma JT, Mol BW, de Groot CJ. 10-Year cardiovascular event risks for women who experienced hypertensive disorders in late pregnancy: the HyRAS study. BMC Pregnancy Childbirth 2010; 10:28. [PMID: 20515501 PMCID: PMC2889848 DOI: 10.1186/1471-2393-10-28] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2009] [Accepted: 06/01/2010] [Indexed: 11/21/2022] Open
Abstract
Background Cardiovascular disease is the cause of death in 32% of women in the Netherlands. Prediction of an individual's risk for cardiovascular disease is difficult, in particular in younger women due to low sensitive and specific tests for these women. 10% to 15% of all pregnancies are complicated by hypertensive disorders, the vast majority of which develop only after 36 weeks of gestation. Preeclampsia and cardiovascular disease in later life show both features of "the metabolic syndrome" and atherosclerosis. Hypertensive disorders in pregnancy and cardiovascular disease may develop by common pathophysiologic pathways initiated by similar vascular risk factors. Vascular damage occurring during preeclampsia or gestational hypertension may contribute to the development of future cardiovascular disease, or is already present before pregnancy. At present clinicians do not systematically aim at the possible cardiovascular consequences in later life after a hypertensive pregnancy disorder at term. However, screening for risk factors after preeclampsia or gestational hypertension at term may give insight into an individual's cardiovascular risk profile. Methods/Design Women with a history of preeclampsia or gestational hypertension will be invited to participate in a cohort study 2 1/2 years after delivery. Participants will be screened for established modifiable cardiovascular risk indicators. The primary outcome is the 10-year cardiovascular event risk. Secondary outcomes include differences in cardiovascular parameters, SNP's in glucose metabolism, and neonatal outcome. Discussion This study will provide evidence on the potential health gains of a modifiable cardiovascular risk factor screening program for women whose pregnancy was complicated by hypertension or preeclampsia. The calculation of individual 10-year cardiovascular event risks will allow identification of those women who will benefit from primary prevention by tailored interventions, at a relatively young age. Trial registration The HYPITAT trial is registered in the clinical trial register as ISRCTN08132825.
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Affiliation(s)
- Wietske Hermes
- Department of Obstetrics and Gynecology, Medical Centre Haaglanden Den Haag, the Netherlands.
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Chevalier B, Hermes W, Gaudin E, Pöttgen R. New high temperature modification of CeTiGe: structural characterization and physical properties. J Phys Condens Matter 2010; 22:146003. [PMID: 21389537 DOI: 10.1088/0953-8984/22/14/146003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The new high temperature form (HT) of the ternary germanide CeTiGe was prepared by annealing at 1373 K. The investigation of HT-CeTiGe by x-ray powder diffraction shows that the compound crystallizes in the tetragonal CeScSi type structure (space group I4/mmm; a=414.95(2) and c=1590.85(10) pm as unit cell parameters). Electrical resistivity, thermoelectric power, magnetization and specific heat measurements performed down to 2 K on HT-CeTiGe reveal a non-magnetic strongly correlated electron system; the specific heat divided by temperature attains a value of 0.635 J mol(-1) K(-2) at 2 K. The comparison of the physical properties of the two crystallographic modifications of CeTiGe suggests a decrease of the hybridization J(cf) between 4f(Ce) and conduction electrons in the sequence LT-CeTiGe [Formula: see text]-CeTiGe (CeScSi type).
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Affiliation(s)
- B Chevalier
- CNRS, Université de Bordeaux, ICMCB, 87 avenue du Docteur Albert Schweitzer, 33608 Pessac Cedex, France
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Chevalier B, Gaudin E, Geibel C, Canales NC, Hermes W, Pöttgen R. A study on the antiferromagnetic behavior of the hydride CeRuGeH adopting the ZrCuSiAs-type structure. J Phys Condens Matter 2010; 22:046003. [PMID: 21386327 DOI: 10.1088/0953-8984/22/4/046003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The non-magnetic heavy fermion behavior of CeRuGe is destroyed by hydrogen insertion. The resulting hydride CeRuGeH, investigated by magnetization, thermoelectric, electrical resistivity and specific heat measurements, exhibits an antiferromagnetic ordering below T(N) = 4.0(2) K weakly influenced by the Kondo effect. Below T(N), a metamagnetic double transition induced by an applied magnetic field was evidenced for CeRuGeH. This hydride presents a simple field-temperature phase diagram in comparison to that determined for the equivalent compound CeRuSiH.
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Affiliation(s)
- B Chevalier
- CNRS, Université de Bordeaux, ICMCB, Pessac, France.
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Nakhal S, Hermes W, Ressler T, Pöttgen R, Lerch M. Synthesis, Crystal Structure, and Magnetic Properties of a Vanadium Oxide Nitride with Pseudobrookite-type Structure. Z Anorg Allg Chem 2009. [DOI: 10.1002/zaac.200900168] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Nakhal S, Hermes W, Pöttgen R, Ressler T, Lerch M. Synthese, Kristallstruktur und magnetische Eigenschaften von neuen Vanadiumoxidnitriden. Z Anorg Allg Chem 2008. [DOI: 10.1002/zaac.200870116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Hermes W, Puylaert JBCM, de Groot CJM. [Acute abdominal pain in the third trimester of pregnancy caused by adnexal torsion based on a small cystic adenoma]. Ned Tijdschr Geneeskd 2007; 151:1994-1997. [PMID: 17953174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
A 25-year-old woman presented in the third trimester of pregnancy with severe abdominal pain in the lower right abdominal quadrant. Differential diagnosis included urolithiasis, adnexal torsion and appendicitis. A definitive diagnosis could not be made based on clinical and laboratory examination. Ultrasonography revealed a 3-cm cyst in the lower right abdomen, which was considered unlikely to cause abdominal pain. During laparotomy, adnexal torsion was found, which was deemed to be the cause of the abdominal pain. The twisted portion was uncoiled and the dark-coloured cyst was extirpated. The cyst was determined to be a cystic adenoma. Adnexal torsion is rarely caused by cysts smaller than 5 cm, especially in the third trimester. Emergency laparoscopyllaparotomy should be performed if adnexal torsion is suspected to confirm the diagnosis and uncoil the twist to prevent ovarian damage. Adnexal torsion should be considered in the differential diagnosis of acute abdominal pain in the third trimester of pregnancy.
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Affiliation(s)
- W Hermes
- Medisch Centrum Haaglanden, Lijnbaan 32, 2512 VA Den Haag
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Thimm F, Meier zu Verl E, Hermes W. Possible influence of [H+] on metabolic muscle receptor causing heart rate increase. Pflugers Arch 1982. [DOI: 10.1007/bf02580789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abstract
Small oligonucleotides from DNA and RNA have been separated according to their base composition by high-performance anion-exchange liquid chromatography on Partisil-10 SAX using triethylammonium acetate buffer as the eluent. Fifteen of the 16 possible deoxydinucleoside monophosphates and all 16 dinucleoside monophosphates have been separated. All pairs of sequence isomers were all resolved. The 15 commercially available deoxydinucleotides were resolved into 13 fractions. A good resolution of deoxytrinucleoside diphosphates isolated from an alkaline phosphatase-Mg2+-activated DNase I digest of calf thymus DNA was achieved by this technique. A large number of sequence isomers could be fully separated. The base sequence of the eluted individual constituents has been determined by their hydrolysis with snake venom and spleen phosphodiesterase followed by high-performance liquid chromatographic analysis of the nucleotides released. The eight trinucleoside diphosphates isolated from an alkaline phosphatase-pancreatic RNase digest of yeast RNA have also been separated according to base composition. Their sequence was determined as above. The described technique is fast and gave very good separation. Most of the sequence isomers could be separated. Moreover, the eluent triethylammonium acetate can easily be removed from column effluents by freeze-drying in order to facilitate subsequent sequence analysis of the eluted compounds. The observed elution orders of the sequence isomers obey certain rules which are discussed in detail.
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Dizdaroglu M, Hermes W, von Sonntag C, Schott H, Schott H. Separation of the sequence isomers of pyrimidine deoxytetranucleoside triphosphates by high-performance ion-exchange liquid chromatography. J Chromatogr A 1979; 169:429-35. [PMID: 536432 DOI: 10.1016/0021-9673(75)85076-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Dizdaroglu M, Hermes W, Schulte-Frohlinde D, von Sonntag C. Enzymatic digestion of DNA gamma-irradiated in aqueous solution separation of the digests by ion-exchange chromatography. Int J Radiat Biol Relat Stud Phys Chem Med 1978; 33:563-9. [PMID: 210133 DOI: 10.1080/09553007814550471] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Aqueous solutions of DNA were gamma-irradiated in the presence and absence of oxygen and enzymatically hydrolysed by the combined action of pancreatic deoxyribonuclease (DNase I), snake-venom phosphodiesterase (PDE I), spleen phosphodiesterase (PDE II) and alkaline phosphatase. In contrast to unirradiated DNA, which is fully hydrolysed to nucleosides by these enzymes, gamma-irradiated DNA yields a series of oligonucleotides. Their isolation might enalbe the future identification of the chemical nature of DNA lesions.
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