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1.
Arch Gynecol Obstet ; 308(6): 1703-1711, 2023 12.
Artículo en Inglés | MEDLINE | ID: mdl-36434441

RESUMEN

PURPOSE: In early-onset preeclampsia, each additional day of pregnancy prolongation reduces offspring infant mortality about 9%. We evaluated if maternal stress at admission to hospital for early-onset preeclampsia predicted admission-to-delivery intervals in days. METHODS: This prospective, longitudinal cohort-study involved 15 singleton pregnancies with a diagnosis of preeclampsia before 34 weeks gestation with intended expectant management. Upon hospital admission, maternal psychological stress was assessed with questionnaires and physiological stress with hair cortisol. Hair samples were analyzed in three hair segments representing the preconception period, and the first and second trimester of pregnancy. RESULTS: Mean pregnancy prolongation was 16.2 days. Higher maternal anxiety at hospital admission significantly correlated with shorter admission-to-delivery intervals (r = - 0.54, p = 0.04). Chronically increased hair cortisol concentrations (i.e. from preconception through the second trimester) of pregnancy tended to be related to shorter admission-to-delivery intervals (p <. 10). CONCLUSION: Higher reported anxiety is, and chronically high hair cortisol tended to be, related with fewer days of prolongation from admission to delivery in women with early-onset preeclampsia. These findings suggest that maternal stress might be a potential determinant of disease progression. Future research into early innovative stress-reducing interventions for early-onset preeclampsia may shed more light on the etiology and treatment of this disease.


Asunto(s)
Ansiedad , Madres , Preeclampsia , Femenino , Humanos , Embarazo , Hidrocortisona , Preeclampsia/diagnóstico , Segundo Trimestre del Embarazo , Estudios Prospectivos , Madres/psicología
2.
BMC Pregnancy Childbirth ; 19(1): 443, 2019 Nov 27.
Artículo en Inglés | MEDLINE | ID: mdl-31775677

RESUMEN

BACKGROUND: Early pregnancy failure (EPF) is a common complication of pregnancy. If women do not abort spontaneously, they will undergo medical or surgical treatment in order to remove the products of conception from the uterus. Curettage, although highly effective, is associated with a risk of complications; medical treatment with misoprostol is a safe and less expensive alternative. Unfortunately, after 1 week of expectant management in case of EPF, medical treatment with misoprostol has a complete evacuation rate of approximately 50%. Misoprostol treatment results may be improved by pre-treatment with mifepristone; its effectiveness has already been proven for other indications of pregnancy termination. This study will test the hypothesis that, in EPF, the sequential combination of mifepristone with misoprostol is superior to the use of misoprostol alone in terms of complete evacuation (primary outcome), patient satisfaction, complications, side effects and costs (secondary outcomes). METHODS: The trial will be performed multi-centred, prospectively, two-armed, randomised, double-blinded and placebo-controlled. Women with confirmed EPF by ultrasonography (6-14 weeks), managed expectantly for at least 1 week, can be included and randomised to pre-treatment with oral mifepristone (600 mg) or oral placebo (identical in appearance). Randomisation will take place after receiving written consent to participate. In both arms pre-treatment will be followed by oral misoprostol, which will start 36-48 h later consisting of two doses 400 µg (4 hrs apart), repeated after 24 h if no tissue is lost. Four hundred sixty-four women will be randomised in a 1:1 ratio, stratified by centre. Ultrasonography 2 weeks after treatment will determine short term treatment effect. When the gestational sac is expulsed, expectant management is advised until 6 weeks after treatment when the definitive primary endpoint, complete or incomplete evacuation, will be determined. A sonographic endometrial thickness < 15 mm using only the allocated therapy by randomisation is considered as successful treatment. Secondary outcome measures (patient satisfaction, complications, side effects and costs) will be registered using a case report form, patient diary and validated questionnaires (Short Form 36, EuroQol-VAS, Client Satisfaction Questionnaire, iMTA Productivity Cost Questionnaire). DISCUSSION: This trial will answer the question if, in case of EPF, after at least 1 week of expectant management, sequential treatment with mifepristone and misoprostol is more effective than misoprostol alone to achieve complete evacuation of the products of conception. TRIAL REGISTRATION: Clinicaltrials.gov (d.d. 02-07-2017): NCT03212352. Trialregister.nl (d.d. 03-07-2017): NTR6550. EudraCT number (d.d. 07-08-2017): 2017-002694-19. File number Commisie Mensgebonden Onderzoek (d.d. 07-08-2017): NL 62449.091.17.


Asunto(s)
Abortivos no Esteroideos/uso terapéutico , Abortivos Esteroideos/uso terapéutico , Aborto Incompleto/tratamiento farmacológico , Mifepristona/uso terapéutico , Misoprostol/uso terapéutico , Abortivos no Esteroideos/administración & dosificación , Abortivos Esteroideos/administración & dosificación , Aborto Incompleto/diagnóstico por imagen , Adolescente , Adulto , Análisis Costo-Beneficio , Método Doble Ciego , Quimioterapia Combinada/efectos adversos , Femenino , Humanos , Mifepristona/administración & dosificación , Misoprostol/efectos adversos , Estudios Multicéntricos como Asunto , Satisfacción del Paciente , Embarazo , Primer Trimestre del Embarazo , Estudios Prospectivos , Ensayos Clínicos Controlados Aleatorios como Asunto , Ultrasonografía , Espera Vigilante , Adulto Joven
3.
BMC Pregnancy Childbirth ; 19(1): 181, 2019 May 22.
Artículo en Inglés | MEDLINE | ID: mdl-31117985

RESUMEN

Management of late-term pregnancy in midwifery- and obstetrician-led care. BACKGROUND: Since there is no consensus regarding the optimal management in late-term pregnancies (≥41.0 weeks), we explored the variety of management strategies in late-term pregnancy in the Netherlands to identify the magnitude of this variety and the attitude towards late-term pregnancy. METHODS: Two nationwide surveys amongst all midwifery practices (midwifery-led care) and all hospitals with an obstetric unit (obstetrician-led care) were performed with questions on timing, frequency and content of consultations/surveillance in late-term pregnancy and on timing of induction. Propositions about late-term pregnancy were assessed using Likert scale questions. RESULTS: The response rate was 40% (203/511) in midwifery-led care and 92% (80/87) in obstetrician-led care. All obstetric units made regional protocols with their collaborating midwifery practices about management in late-term pregnancy. Most midwifery-led care practices (93%) refer low-risk women at least once for consultation in obstetrician-led care in late-term pregnancy. The content of consultations varies among hospitals. Membrane sweeping is performed more in midwifery-led care compared to obstetrician-led care (90% vs 31%, p < 0.001). Consultation at 41 weeks should be standard care according to 47% of midwifery-led care practices and 83% of obstetrician-led care units (p < 0.001). Induction of labour at 41.0 weeks is offered less often to women in midwifery-led care in comparison to obstetrician-led care (3% vs 21%, p < 0.001). CONCLUSIONS: Substantial practice variation exists within and between midwifery-and obstetrician-led care in the Netherlands regarding timing, frequency and content of antenatal monitoring in late-term pregnancy and timing of labour induction. An evidence based interdisciplinary guideline will contribute to a higher level of uniformity in the management in late- term pregnancies.


Asunto(s)
Partería/métodos , Enfermeras Obstetrices/psicología , Obstetricia/métodos , Médicos/psicología , Embarazo Prolongado/psicología , Adulto , Actitud del Personal de Salud , Parto Obstétrico/métodos , Parto Obstétrico/psicología , Femenino , Humanos , Partería/normas , Países Bajos , Obstetricia/normas , Embarazo , Embarazo Prolongado/terapia
4.
J Obstet Gynaecol ; 39(7): 1006-1011, 2019 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-31215270

RESUMEN

To investigate the current and future addition of mifepristone to misoprostol treatment in case of early pregnancy failure (EPF), a digital questionnaire was distributed to a representative sample of all Dutch hospitals (25/79). In non-teaching centres, the presence of a local protocol was significantly lower compared to academic and teaching hospitals (p=.012). If a local protocol was present, the first choice of treatment was medical in 54.5%. Four respondents (16%) always prescribed mifepristone in case of EPF. The most common reason not prescribing mifepristone was the lack of sufficient scientific evidence. An average increase in success rate of 21.7% was desired to prescribe mifepristone in the future for EPF. Completeness of evacuation of products of conception from the uterus was usually assessed after 1 week by ultrasonography combined with clinical signs. If a complete evacuation was not achieved by the initial medical treatment, expectant management was proposed just as often as surgical intervention. Impact Statement What is already known on this subject? In case of early pregnancy failure (EPF), women can choose from both expectant medical (misoprostol, whether or not combined with mifepristone) and surgical (D and C) treatment. In The Netherlands, a national guideline concerning the treatment of EPF is still lacking. A questionnaire performed by Verschoor et al. ( 2014 ) showed there was a large practice variety between Dutch clinics. What the results of this study add? In this study, a representative sample of all Dutch clinics received a questionnaire about the treatment of EPF. The results confirm a large practice variation regarding treatment of EPF. The first choice of treatment, the medical treatment regimen, and the assessment of whether or not the treatment have been variations of successful between clinics. With regards to the addition of mifepristone to the medical treatment regime with misoprostol, gynaecologists are willing to consider mifepristone if an improvement of efficacy of approximately 20% is scientifically proven. What the implications are of these findings for clinical practice and/or further research? In our opinion, these results emphasise the need for a national guideline concerning the treatment of EPF. Our results also demonstrate that, if the addition of mifepristone to medical treatment with misoprostol proves to be more efficient than misoprostol alone, gynaecologists are willing to prescribe mifepristone in the future. Whether the addition is indeed more effective than misoprostol alone, will be the subject of a multicentre, double-blind, placebo-controlled randomised controlled trial, planned to begin in the first half of 2018.


Asunto(s)
Abortivos/administración & dosificación , Aborto Espontáneo/terapia , Ginecología/estadística & datos numéricos , Mifepristona/administración & dosificación , Misoprostol/administración & dosificación , Femenino , Ginecología/normas , Humanos , Países Bajos , Embarazo , Encuestas y Cuestionarios
5.
BMC Pregnancy Childbirth ; 18(1): 49, 2018 02 08.
Artículo en Inglés | MEDLINE | ID: mdl-29422014

RESUMEN

BACKGROUND: Despite the introduction of evidence based guidelines and practical courses, the incidence of postpartum hemorrhage shows an increasing trend in developed countries. Substandard care is often found, which implies an inadequate implementation in high resource countries. We aimed to reduce the gap between evidence-based guidelines and clinical application, by developing a strategy, tailored to current barriers for implementation. METHODS: The development of the implementation strategy consisted of three phases, supervised by a multidisciplinary expert panel. In the first phase a framework of the strategy was created, based on barriers to optimal adherence identified among professionals and patients together with evidence on effectiveness of strategies found in literature. In the second phase, the tools within the framework were developed, leading to a first draft. In the third phase the strategy was evaluated among professionals and patients. The professionals were asked to give written feedback on tool contents, clinical usability and inconsistencies with current evidence care. Patients evaluated the tools on content and usability. Based on the feedback of both professionals and patients the tools were adjusted. RESULTS: We developed a tailored strategy to improve guideline adherence, covering the trajectory of the third trimester of pregnancy till the end of the delivery. The strategy, directed at professionals, comprehending three stop moments includes a risk assessment checklist, care bundle and time-out procedure. As patient empowerment tools, a patient passport and a website with patient information was developed. The evaluation among the expert panel showed all professionals to be satisfied with the content and usability and no discrepancies or inconsistencies with current evidence was found. Patients' evaluation revealed that the information they received through the tools was incomplete. The tools were adjusted accordingly to the missing information. CONCLUSION: A usable, tailored strategy to implement PPH guidelines and practical courses was developed. The next step is the evaluation of the strategy in a feasibility trial. TRIAL REGISTRATION: Clinical trial registration: The Fluxim study, registration number: NCT00928863 .


Asunto(s)
Adhesión a Directriz , Implementación de Plan de Salud/métodos , Hemorragia Posparto , Guías de Práctica Clínica como Asunto , Mejoramiento de la Calidad , Lista de Verificación , Femenino , Humanos , Embarazo , Medición de Riesgo/métodos
6.
BMC Pregnancy Childbirth ; 18(1): 380, 2018 Sep 20.
Artículo en Inglés | MEDLINE | ID: mdl-30236080

RESUMEN

BACKGROUND: Late- and postterm pregnancy are associated with adverse perinatal outcomes, like perinatal death. We evaluated causes of death and substandard care factors (SSFs) in term and postterm perinatal death. METHODS: We used data from the Perinatal Audit Registry of the Netherlands (PARS). Women with a term perinatal death registered in PARS were stratified by gestational age into early-/full-term (37.0-40.6) and late-/postterm (≥41.0 weeks) death. Cause of death and SSFs ≥41 weeks were scored and classified by the local perinatal audit teams. RESULTS: During 2010-2012, 947/479,097 (0.21%) term deaths occurred, from which 707 cases (75%) were registered and could be used for analyses. Five hundred ninety-eight early-/full-term and 109 late-/postterm audited deaths were registered in the PARS database. Of all audited cases of perinatal death in the PARS database, 55.2% in the early-/fullterm group occurred antepartum compared to 42.2% in the late-/postterm group, while intrapartum death occurred in 7.2% in the early-/full-term group compared to 19.3% in the late-/postterm group in the audited cases from the PARS database. According to the local perinatal audit, the most relevant causes of perinatal death ≥41 weeks were antepartum asphyxia (7.3%), intrapartum asphyxia (9.2%), neonatal asphyxia (10.1%) and placental insufficiency (10.1%). In the group with perinatal death ≥41 weeks there was ≥1SSF identified in 68.8%. The most frequent SSFs concerned inadequate cardiotocography (CTG) evaluation and/or classification (10.1%), incomplete registration or documentation in medical files (4.6%) or inadequate action on decreased foetal movements (4.6%). CONCLUSIONS: In the Netherlands Perinatal Audit Registry, stillbirth occurred relatively less often antepartum and more often intrapartum in pregnancies ≥41 weeks compared to pregnancies at 37.0-40.6 weeks in the audited cases from the PARS database. Foetal, intrapartum and neonatal asphyxia were identified more frequently as cause of death in pregnancies ≥41 weeks. The most identified SSFs related to death in pregnancies ≥41 weeks concerned inadequate CTG monitoring (evaluation, classification, registration or documentation) and inadequate action on decreased foetal movements.


Asunto(s)
Asfixia Neonatal/mortalidad , Muerte Perinatal/etiología , Mortalidad Perinatal , Embarazo Prolongado , Mortinato/epidemiología , Adulto , Causas de Muerte , Femenino , Edad Gestacional , Humanos , Recién Nacido , Auditoría Médica , Países Bajos/epidemiología , Embarazo , Sistema de Registros , Nacimiento a Término
7.
Aust N Z J Obstet Gynaecol ; 58(2): 204-209, 2018 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-28850666

RESUMEN

BACKGROUND: In this study we determined the outcome of subsequent pregnancies after termination of pregnancy for preeclampsia, with the purpose of presenting data useful for counselling these women on future pregnancies. STUDY DESIGN: The cohort consisted of 131 women with a history of termination of pregnancy for preeclampsia. RESULTS: Data of 79 pregnancies were available for analysis, including 13 women with chronic hypertension and 16 women with thrombophilia. There were seven miscarriages (8.8%) and 72 ongoing pregnancies. Low-dose aspirin was prescribed for 64 women (89%). The mean gestational age at delivery was 356/7 ± 4 weeks with a mean birth weight of 2571 ± 938 g. Overall recurrence rate for preeclampsia was 29% at a mean gestational age of 32 weeks. Thirty-eight women had an uncomplicated pregnancy (53%). The women with chronic hypertension had the highest recurrence rate of 38%. Neonatal mortality was 4%. CONCLUSION: The course of subsequent pregnancies after mid-trimester termination for preeclampsia is uncomplicated in 53% with a recurrence rate for preeclampsia of 29%. The mean gestational age at delivery was 11 weeks later and birth weight 2000 g higher than in the index pregnancy.


Asunto(s)
Aborto Terapéutico , Consejo , Preeclampsia/epidemiología , Atención Prenatal , Adulto , Estudios de Cohortes , Femenino , Humanos , Países Bajos , Embarazo , Resultado del Embarazo , Trimestres del Embarazo , Recurrencia
8.
Am J Perinatol ; 34(3): 234-239, 2017 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-27441567

RESUMEN

Objective We assessed the influence of external factors on false-positive, false-negative, and invalid fibronectin results in the prediction of spontaneous delivery within 7 days. Methods We studied symptomatic women between 24 and 34 weeks' gestational age. We performed uni- and multivariable logistic regression to estimate the effect of external factors (vaginal soap, digital examination, transvaginal sonography, sexual intercourse, vaginal bleeding) on the risk of false-positive, false-negative, and invalid results, using spontaneous delivery within 7 days as the outcome. Results Out of 708 women, 237 (33%) had a false-positive result; none of the factors showed a significant association. Vaginal bleeding increased the proportion of positive fetal fibronectin (fFN) results, but was significantly associated with a lower risk of false-positive test results (odds ratio [OR], 0.22; 95% confidence intervals [CI], 0.12-0.39). Ten women (1%) had a false-negative result. None of the investigated factors was significantly associated with a significantly higher risk of false-negative results. Twenty-one tests (3%) were invalid; only vaginal bleeding showed a significant association (OR, 4.5; 95% CI, 1.7-12). Conclusion The effect of external factors on the performance of qualitative fFN testing is limited, with vaginal bleeding as the only factor that reduces its validity.


Asunto(s)
Fibronectinas/análisis , Trabajo de Parto Prematuro/diagnóstico , Vagina/química , Adulto , Coito , Endosonografía , Reacciones Falso Negativas , Reacciones Falso Positivas , Femenino , Edad Gestacional , Humanos , Trabajo de Parto Prematuro/metabolismo , Embarazo , Factores de Riesgo , Jabones , Hemorragia Uterina/metabolismo , Adulto Joven
9.
Birth Defects Res A Clin Mol Teratol ; 106(2): 114-21, 2016 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-26689996

RESUMEN

BACKGROUND: A total of 75% of monozygotic twins share 1 monochorionic placenta where placental anastomoses cause several serious complications, for example, acardiac twinning. Acardiac twins lack cardiac function but grow by perfusion of arterial blood from the pump twin. This rare pregnancy has 50% natural pump twin mortality but accurate risk prediction is currently impossible. Recent guidelines suggest prophylactic surgery before 18 weeks, suggesting 50% unnecessary interventions. We hypothesize that (1) adverse pump twin outcome relates to easy-to-measure pump/acardiac umbilical venous diameter (UVD) ratios, representing acardiac perfusion by the pump's excess cardiac output. This hypothesis suggests that (2) UVD-ratios are large, mildly varying in cases without complications but small and decreasing when complications develop, thus predicting that (3) UVD-ratios may allow risk prediction of pump twins. In this exploratory clinical pilot, we tested whether UVD-ratio measurements support these predictions. METHODS: We included 7 uncomplicated (expectant management), 3 elective surgical, and 17 complicated cases (pump decompensation, emergency intervention/delivery or demise). Nine UVD-ratios were measured sonographycally and 18 by pathology. RESULTS: Uncomplicated cases have larger, two serial measurements showing mildly varying UVD-ratios; elective surgical cases show larger UVD-ratios; complicated cases have smaller, two serial measurements showing decreasing UVD-ratios. There were no false-positives, no false-negatives and noncrossing linear trendlines of uncomplicated and complicated cohorts. CONCLUSION: Our data provide first evidence that UVD-ratios allow risk prediction of pump twins. More early uncomplicated and late complicated cases are needed, for example, in a prospective trial, before the separation between uncomplicated and complicated cohorts is accurate enough to support a well-founded decision on (early) intervention.


Asunto(s)
Anomalías Congénitas/embriología , Cardiopatías Congénitas/embriología , Corazón/embriología , Placenta/irrigación sanguínea , Gemelos Monocigóticos , Venas Umbilicales/fisiopatología , Femenino , Humanos , Placenta/fisiología , Embarazo , Embarazo Gemelar , Estudios Retrospectivos
10.
Birth Defects Res A Clin Mol Teratol ; 106(3): 213-7, 2016 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-26691208

RESUMEN

BACKGROUND: Acardiac twinning is a rare anomaly of monochorionic twin pregnancies. Acardiac fetuses lack a functional heart but are passively perfused by arterial blood from their pump co-twin. Although four acardiac morphological types have been classified, the various paths of anatomical and circulatory acardiac twin development, and the potential influence of acardiac size and perfusion flow as possible predictors of pump twin morbidity and mortality are poorly understood. This report presents the first high resolution three-dimensional reconstruction of the vasculature of an acardiac twin by cryomicrotome imaging. CASE: A small, approximately 7.5-cm-diameter ball-shaped acardius amorphous of 30 5/7 weeks had caused pump twin cardiac decompensation that necessitated an emergency cesarian section. The pump twin survived well. The acardiac body had a partially intact vascular system with large diameter arteries and veins and multiple zones that appeared devoid of perfusion. The three-dimensional reconstruction showed neither recognizable organ structures nor identifiable blood vessels except for the umbilical artery and vein. CONCLUSION: Our case showed a small acardiac mass with large diameter vessels and consequential low outflow resistance that caused pump twin complications. This indicates that the development of a method that allows pump twin prognosis is likely more successful if based on the use of acardiac versus pump twin perfusion flows than on body volume ratios.


Asunto(s)
Enfermedades en Gemelos/diagnóstico por imagen , Cardiopatías Congénitas/diagnóstico por imagen , Procesamiento de Imagen Asistido por Computador/métodos , Imagenología Tridimensional/métodos , Gemelos Monocigóticos , Cesárea , Microscopía por Crioelectrón , Enfermedades en Gemelos/congénito , Enfermedades en Gemelos/patología , Enfermedades en Gemelos/cirugía , Femenino , Feto , Cardiopatías Congénitas/patología , Cardiopatías Congénitas/cirugía , Humanos , Microtomía , Embarazo , Ultrasonografía Prenatal
11.
Birth Defects Res A Clin Mol Teratol ; 103(7): 641-3, 2015 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-26172962

RESUMEN

BACKGROUND: Approximately 75% of monozygotic twin pregnancies share one monochorionic placenta where placental anastomoses are virtually always present to connect the two fetoplacental circulations. These anastomoses cause several serious complications such as acardiac twinning. Acardiac twins lack a functional heart but nevertheless show fetal growth because the normal pump twin perfuses the acardiac body through arterioarterial (AA) and venovenous (VV) anastomoses. The widely accepted 1% monochorionic acardiac incidence dates back to 1944 and the associated 1:35,000 pregnancies to 1953. Our aim was to update this analysis. METHODS: We accepted the 1% (actually 1.1%) monochorionic acardiac incidence due to lack of more precise data, included the recently observed 58% early cessation of acardiac development as well as consequences of assisted reproductive technology, and assessed the incidence of acardiac twinning under conditions of AA-VV anastomoses. RESULTS: Early acardiac monochorionic twinning increased from 1.1% to 1.1/(1-0.58) = 2.6%, from 1:35,000 to 1:9,500 to 11,000 pregnancies, depending on number and method of assisted reproductive technology, and occurs in approximately 1:8 AA-VV anastomoses-containing monochorionic placentas. CONCLUSION: Early acardiac twinning is not a rare event. The 1944-based 1% acardiac monochorionic incidence has a weak basis and could therefore be (much) larger. Knowing this incidence more precisely may contribute to our knowledge of embryonic splitting in unequal cell masses.


Asunto(s)
Feto/irrigación sanguínea , Placenta/irrigación sanguínea , Gemelos Monocigóticos , Femenino , Humanos , Embarazo
12.
Acta Obstet Gynecol Scand ; 94(7): 715-721, 2015 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-25845495

RESUMEN

OBJECTIVE: To stratify the risk of spontaneous preterm delivery using cervical length (CL) and fetal fibronectin (fFN) in women with threatened preterm labor who remained pregnant after 7 days. DESIGN: Prospective observational study. SETTING: Nationwide cohort of women with threatened preterm labor from the Netherlands. POPULATION: Women with threatened preterm labor between 24 and 34 weeks with a valid CL and fFN measurement and remaining pregnant 7 days after admission. METHODS: Kaplan-Meier and Cox proportional hazards models were used to estimate cumulative percentages and hazard ratios (HR) for spontaneous delivery. MAIN OUTCOME MEASURES: Spontaneous delivery between 7 and 14 days after initial presentation and spontaneous preterm delivery before 34 weeks. RESULTS: The risk of delivery between 7 and 14 days was significantly increased for women with a CL < 15 mm or a CL ≥15 to <30 mm and a positive fFN, compared with women with a CL ≥30 mm: HR 22.3 [95% confidence interval (CI) 2.6-191] and 14 (95% CI 1.8-118), respectively. For spontaneous preterm delivery before 34 weeks the risk was increased for women with a CL < 15 mm [HR 6.3 (95% CI 2.6-15)] or with a CL ≥15 to <30 mm with either positive fFN [HR 3.6 (95% CI 1.5-8.7)] or negative fFN [HR 3.0 (95% CI 1.2-7.1)] compared with women with a CL ≥ 30 mm. CONCLUSIONS: In women remaining pregnant 7 days after threatened preterm labor, CL and fFN results can be used in risk stratification for spontaneous delivery.


Asunto(s)
Medición de Longitud Cervical , Fibronectinas/sangre , Trabajo de Parto Prematuro/epidemiología , Medición de Riesgo , Adulto , Femenino , Humanos , Países Bajos/epidemiología , Trabajo de Parto Prematuro/sangre , Embarazo , Nacimiento Prematuro/epidemiología , Modelos de Riesgos Proporcionales , Estudios Prospectivos , Nacimiento a Término
13.
Am J Perinatol ; 32(5): 451-60, 2015 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-25486290

RESUMEN

OBJECTIVE: To evaluate whether tocolysis with nifedipine can be omitted in women with symptoms of preterm labor, a shortened cervix, and negative fetal fibronectin test. STUDY DESIGN: A randomized noninferiority trial was performed in all Dutch perinatal centers. Women with symptoms of preterm labor between 24 and 34 weeks, intact membranes, cervical length between 10 and 30 mm, and negative fibronectin test were randomly allocated to nifedipine (80 mg/day) or placebo. The primary outcome was delivery within 7 days. Secondary outcomes were severe neonatal morbidity and mortality. We also followed all eligible nonrandomized women. RESULTS: We allocated 37 women to nifedipine and 36 women to placebo. In the nifedipine group, three women (8.1%) delivered within 7 days, compared with one woman (2.8%) in the placebo group (difference -5.3%; one-sided 95% confidence limit 4.5%). Median gestational age at delivery were respectively 37 + 0 (interquartile range [IQR] 34 + 6 to 38 + 5) and 38 + 2 (IQR 37 + 0 to 39 + 6) weeks (p = 0.008). In the nifedipine group, three pregnancies (8.1%) had a poor outcome; there were no poor outcomes in the placebo group. We observed similar trends in eligible nonrandomized women. CONCLUSION: In symptomatic women with preterm labor, a shortened cervix, and negative fibronectin test, placebo treatment is not inferior to tocolysis with nifedipine.


Asunto(s)
Medición de Longitud Cervical , Fibronectinas/análisis , Nifedipino/uso terapéutico , Trabajo de Parto Prematuro/tratamiento farmacológico , Complicaciones del Embarazo/tratamiento farmacológico , Tocolíticos/uso terapéutico , Adulto , Femenino , Edad Gestacional , Humanos , Países Bajos , Trabajo de Parto Prematuro/prevención & control , Embarazo , Complicaciones del Embarazo/prevención & control , Resultado del Tratamiento , Adulto Joven
14.
Bioact Mater ; 20: 463-471, 2023 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-35800408

RESUMEN

Iatrogenic preterm premature rupture of fetal membranes (iPPROM) after fetal surgery remains a strong trigger for premature birth. As fetal membrane defects do not heal spontaneously and amniotic fluid leakage and chorioamniotic membrane separation may occur, we developed a biocompatible, fetoscopically-applicable collagen plug with shape memory to prevent leakage. This plug expands directly upon employment and seals fetal membranes, hence preventing amniotic fluid leakage and potentially iPPROM. Lyophilized type I collagen plugs were given shape memory and crimped to fit through a fetoscopic cannula (Ø 3 mm). Expansion of the plug was examined in phosphate buffered saline (PBS). Its sealing capacity was studied ex vivo using human fetal membranes, and in situ in a porcine bladder model. The crimped plug with shape memory expanded and tripled in diameter within 1 min when placed into PBS, whereas a crimped plug without shape memory did not. In both human fetal membranes and porcine bladder, the plug expanded in the defect, secured itself and sealed the defect without membrane rupture. In conclusion, collagen plugs with shape memory are promising as medical device for rapid sealing of fetoscopic defects in fetal membranes at the endoscopic entry point.

15.
J Med Case Rep ; 16(1): 136, 2022 Apr 06.
Artículo en Inglés | MEDLINE | ID: mdl-35382872

RESUMEN

BACKGROUND: Twin reversed arterial perfusion sequence is a rare complication of monochorionic multifetal pregnancies. In this syndrome, the acardiac twin has a nonfunctional heart, while the other twin, the pump twin, has normal development. The pump twin perfuses the acardiac twin and is therefore at risk for cardiac decompensation. In monoamniotic cases, the normal co-twin is also at risk of sudden death due to cord entanglement. Treatment consists of coagulation and transection of the acardiac's umbilical cord. We report the first intrauterine use in pregnancy of a Ho:yttrium aluminum garnet laser to safely and successfully transect the umbilical cord after Nd:yttrium aluminum garnet coagulation. CASE PRESENTATION: A 30-year-old Caucasian woman was referred to our fetal-maternal medicine unit at 9 weeks gestation with a monochorionic-monoamniotic twin pregnancy complicated by an acardiac twin. After counseling, she opted for an elective intervention to minimize the risks to the pump twin. At 16 weeks, fetoscopy was performed using a single 2-mm entry port. Through this port, a 1.0-mm fetoscope and a 0.365-mm laser fiber were introduced. Under fetoscopic sight and ultrasound (Doppler) guidance, the umbilical cord of the acardiac twin was first coagulated by laser energy using a Nd:yttrium aluminum garnet laser and then, using the same fiber, transected using a Ho:yttrium aluminum garnet laser. The patient underwent cesarean section at 38 weeks and delivered a healthy baby. CONCLUSIONS: We present the first report on intrauterine use of an Ho:yttrium aluminum garnet laser in human pregnancy. Ho:yttrium aluminum garnet laser energy can be successfully and safely used for umbilical cord transection and carries fewer risks than other methods of transection.


Asunto(s)
Láseres de Estado Sólido , Adulto , Cesárea , Femenino , Humanos , Láseres de Estado Sólido/uso terapéutico , Embarazo , Reducción de Embarazo Multifetal , Embarazo Gemelar , Cordón Umbilical/cirugía
16.
PLoS One ; 17(2): e0262894, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35139105

RESUMEN

BACKGROUND: In case of early pregnancy loss (EPL) women can either choose for expectant, medical or surgical management. One week of expectant management is known to lead to spontaneous abortion in approximately 50% of women. Medical treatment with misoprostol is known to be safe and less costly than surgical management, however less effective in reaching complete evacuation of the uterus. Recently, a number of trials showed that prompt treatment with the sequential combination of mifepristone with misoprostol is superior to misoprostol alone in reaching complete evacuation. In this analysis we evaluate whether the sequential combination of mifepristone with misoprostol is cost-effective compared to misoprostol alone, in the treatment of EPL. METHODS AND FINDINGS: A cost-effectiveness analysis (CEA) from a healthcare perspective was performed alongside a randomised controlled trial (RCT) in which standard treatment with misoprostol only was compared with a combination of mifepristone and misoprostol, in women with EPL after a minimum of one week of unsuccessful management. A limited societal perspective scenario was added. This RCT, the Triple M trial, was a multicentre, randomized, double-blinded, placebo-controlled trial executed at 17 hospitals in the Netherlands. The trial started on June 27th 2018, and ended prematurely in January 2020 due to highly significant outcomes from the predefined interim-analysis. We included 351 women with a diagnosis of EPL between 6 and 14 weeks gestation after at least one week of unsuccessful expectant management. They were randomized between double blinded pre-treatment with oral mifepristone 600mg (N = 175) or placebo (N = 176) taken on day one, both followed by misoprostol orally. In both groups, an intention-to-treat analysis was performed for 172 patients, showing a significant difference in success rates between participants treated with mifepristone and misoprostol versus those treated with misoprostol alone (79.1% vs 58.7% respectively). In this cost-effective analysis we measured the direct, medical costs related to treatment (planned and unplanned hospital visits, medication, additional treatment) and indirect costs based on the IMTA Productivity Cost Questionnaire (iPCQ). Quality Adjusted Life Years (QALY's) were calculated from participants' scores on the SF-36 questionnaires sent digitally at treatment start, and one, two and six weeks later. We found medical treatment with placebo followed by misoprostol to be 26% more expensive compared to mifepristone followed by misoprostol (p = 0.001). Mean average medical costs per patient were significantly lower in the mifepristone group compared to the placebo group (€528.95 ± 328.93 vs €663.77 ± 456.03, respectively; absolute difference €134.82, 95% CI 50,46-219,18, p = 0.002). Both indirect costs and QALY's were similar between both groups. CONCLUSION: The sequential combination of mifepristone with misoprostol is cost-effective compared with misoprostol alone, for treatment of EPL after a minimum of one week of unsuccessful expectant management.


Asunto(s)
Mifepristona
17.
Am J Obstet Gynecol ; 205(6): 574.e1-5, 2011 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-21906713

RESUMEN

OBJECTIVE: Sonography-based Automated Volume Count (SonoAVC) is an automated, operator-independent, 3-dimensional ultrasound technique. The study goal was to assess agreement between SonoAVC and Virtual Organ Computer-aided AnaLysis (VOCAL) for bladder volume measurements and fetal urine production (FUP). STUDY DESIGN: This was a prospective study of recipient bladder volumes in twin-to-twin transfusion syndrome acquired with SonoAVC and VOCAL every 2 minutes during 30 minutes before and 24 hours after laser coagulation. FUP formulas: (V(2) - V(1)) × 60/time interval in minutes; and slope of linear regression of ≥ 3 consecutively increasing bladder volumes × 60 minutes. Bland-Altman plots were used to compare techniques. RESULTS: In 38 pregnancies, 560 bladder measurements were acquired. Mean FUP was 7.29 mL/h (95% confidence interval, 5.66-8.92) using SonoAVC and 6.79 mL/h (95% confidence interval, 5.16-8.42) using VOCAL (P = .14). Limits of agreement were -0.20 to 0.22 cm(3). CONCLUSION: Fetal bladder volume and FUP measurements using SonoAVC were comparable to VOCAL. SonoAVC is operator independent, easy, and fast.


Asunto(s)
Diagnóstico por Computador/métodos , Transfusión Feto-Fetal/diagnóstico por imagen , Enfermedades Renales/diagnóstico por imagen , Ultrasonografía Prenatal/métodos , Enfermedades en Gemelos/diagnóstico por imagen , Femenino , Edad Gestacional , Humanos , Imagenología Tridimensional/métodos , Riñón/diagnóstico por imagen , Enfermedades Renales/orina , Tamaño de los Órganos , Embarazo , Estudios Prospectivos , Vejiga Urinaria/diagnóstico por imagen , Orina
18.
Fetal Diagn Ther ; 29(4): 307-14, 2011.
Artículo en Inglés | MEDLINE | ID: mdl-21304232

RESUMEN

INTRODUCTION: Intravascular intrauterine transfusion (IUT) is an effective and relatively safe method for the treatment of fetal anemia. Although implemented in centers all over the world in the 1980s, the length and strength of the learning curve for this procedure has never been studied. Cumulative sum (CUSUM) analysis has been increasingly used as a graphical and statistical tool for quality control and learning curve assessment in clinical medicine. We aimed to test the feasibility of CUSUM analysis for quality control in fetal therapy by using this method to monitor individual performance of IUT in the learning phase and over the long term. METHODS: IUTs performed in the Dutch referral center for fetal therapy from 1987 to 2009 were retrospectively classified as successful or failed. Failed was defined as no net transfusion or the occurrence of life-threatening procedure-related complications. The CUSUM statistical method was used to estimate individual learning curves and to monitor long-term performance. Four operators who each performed at least 200 procedures were included. RESULTS: Individual CUSUM graphs were easily assessed. Both operators pioneering IUT in the late 1980s had long learning phases. The 2 operators learning IUT in later years in an experienced team performed acceptably from the start and reached a level of competence after 34 and 49 procedures. DISCUSSION: CUSUM analysis is a feasible method for quality control in fetal therapy. In an experienced setting, individual competence may be reached after 30 to 50 IUTs. Our data suggest that operators need at least 10 procedures per year to keep a level of competence.


Asunto(s)
Anemia/embriología , Anemia/terapia , Transfusión de Sangre Intrauterina/métodos , Enfermedades Fetales/terapia , Transfusión de Sangre Intrauterina/estadística & datos numéricos , Competencia Clínica , Femenino , Humanos , Curva de Aprendizaje , Embarazo , Control de Calidad , Resultado del Tratamiento
19.
Artículo en Inglés | MEDLINE | ID: mdl-34639642

RESUMEN

To improve both the active involvement of pregnant women in their maternal health and multidisciplinary collaboration between maternal care professionals, we introduced a personal health record (PHR) in routine maternity care. We studied the effects of this intervention on the percentage of uncomplicated births, women's perspectives on quality of care, and the collaboration between health care professionals. We performed a stepped-wedge cluster randomized controlled trial with four clusters and 13 maternity health centers (community-based midwife practices and hospitals) in one collaborative area. In total, 7350 pregnant women and 220 health care professionals participated. Uncomplicated births accounted for 51.8% (95% CI 50.1-53.9%) of total births in the control group and 55.0% (CI 53.5-56.5%) of total births in the intervention group (p = 0.289). Estimated means revealed that the differences detected in the stepped-wedge study were due to time and not the intervention. Women's perspectives on quality of care and collaboration between health care professionals revealed no relevant differences between the control and intervention groups. The introduction of the PHR resulted in no significant effect on the chosen measures of quality of maternal care. The suggested positive effect in the raw data was a local trend which was less visible in the national database, and thus might be related to subtle changes toward an improved collaborative culture in the study region.


Asunto(s)
Registros de Salud Personal , Servicios de Salud Materna , Obstetricia , Femenino , Humanos , Parto , Embarazo , Atención Prenatal
20.
Am J Obstet Gynecol ; 203(1): 54.e1-5, 2010 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-20417489

RESUMEN

OBJECTIVE: The purpose of this study was to evaluate neonatal outcome of monochorionic twin pregnancies complicated by twin anemia-polycythemia sequence (TAPS). STUDY DESIGN: A cohort of consecutive monochorionic twins with TAPS with double survivors was included in the study. Each twin pair with TAPS was compared with 2 monochorionic twin pairs who were unaffected by TAPS or twin-to-twin transfusion syndrome and who were matched for gestational age at birth. Neonatal death, severe morbidity, and cerebral injury were studied. RESULTS: We included 19 twin pairs in the TAPS group and 38 control twin pairs. The incidence of neonatal death and severe neonatal morbidity was similar in the TAPS group and control group (3% [1/38] vs 1% [1/76] and 24% [9/38] vs 28% [21/76], respectively). Severe cerebral injury was detected in 1 infant (5%) in the TAPS group and 1 infant (2%) in the control group. CONCLUSION: Neonatal mortality and morbidity rates in a select population of TAPS neonates are similar to control neonatal rates.


Asunto(s)
Anemia/patología , Transfusión Feto-Fetal/patología , Policitemia/patología , Anemia/sangre , Anemia/terapia , Transfusión Sanguínea , Lesiones Encefálicas/diagnóstico por imagen , Lesiones Encefálicas/patología , Estudios de Cohortes , Femenino , Transfusión Feto-Fetal/sangre , Transfusión Feto-Fetal/terapia , Hemoglobinas/metabolismo , Humanos , Mortalidad Infantil , Recién Nacido , Coagulación con Láser , Policitemia/sangre , Policitemia/terapia , Embarazo , Recuento de Reticulocitos , Gemelos Monocigóticos , Ultrasonografía
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