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1.
Support Care Cancer ; 28(2): 809-817, 2020 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-31154532

RESUMEN

PURPOSE: Impaired fertility in cancer patients and survivors of reproductive age (15-45 years) may lead to psychological distress and poor mental health outcomes, and may negatively impact quality of life. Limited research has focused on the fertility experiences of those who have had access to supportive oncofertility care. This study aims to explore the fertility-care experiences and reproductive concerns of reproductive age cancer patients at the time of their cancer diagnosis who have had access to oncofertility care. METHODS: The qualitative data from a larger mixed method study is presented, comprising 30 semi-structured telephone interviews with newly diagnosed cancer patients across Australia and New Zealand, undertaken between April 2016 and April 2018. RESULTS: Interviews were undertaken with 9 male patients and 21 female patients aged between 15 and 44 years. All patients recalled a discussion about fertility and majority underwent some form of fertility preservation. Thematic analysis identified five main themes: (i) satisfaction with oncofertility care, (ii) a need for individualised treatment and support, (iii) desire for parenthood, (iv) fertility treatment can be challenging, and (v) fertility preservation provides a safety net for the future. CONCLUSIONS: Participants who access supportive oncofertility care report low emotional impact of threatened future infertility at the time of cancer diagnosis. These results suggest that such services may assist in lowering the emotional burden of potential infertility in survivors. Long-term research is needed to assess the longitudinal benefits for different models of care.


Asunto(s)
Preservación de la Fertilidad/métodos , Preservación de la Fertilidad/psicología , Infertilidad/psicología , Neoplasias/psicología , Sistemas de Apoyo Psicosocial , Adolescente , Adulto , Australia , Femenino , Fertilidad/fisiología , Humanos , Infertilidad/patología , Masculino , Salud Mental , Neoplasias/terapia , Nueva Zelanda , Investigación Cualitativa , Calidad de Vida/psicología , Sobrevivientes , Adulto Joven
2.
BJOG ; 126(2): 237-243, 2019 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-30548407

RESUMEN

Over 8 million babies have been born following IVF (in vitro fertilisation) and other artificial reproductive technology (ART) procedures since Louise Brown's birth 40 years ago. New innovations have added much complexity to both clinical and laboratory procedures over the last four decades. Translation of novel approaches from basic science into clinical practice continues unabated, widening the applicability of ART to new groups of people and helping improve both chances of healthy live birth and patient acceptability. However, the impact of ART on the health of both patients and their offspring continues to cause concern, and many ethical challenges created by new scientific developments in this field attract widely differing opinions. What is undeniable is that there will be a sustained global growth in utilisation of ART and that reproductive tourism will allow many people to access the treatment they desire notwithstanding national regulations that may forbid some approaches. The greatest challenge is to expand access to ART to those living in the less wealthy nations who are equally deserving of its benefits.


Asunto(s)
Técnicas Reproductivas Asistidas/tendencias , Inyecciones de Esperma Intracitoplasmáticas/tendencias , Femenino , Fertilización In Vitro/tendencias , Humanos , Masculino , Embarazo , Conducta Reproductiva , Técnicas Reproductivas Asistidas/economía , Técnicas Reproductivas Asistidas/ética
3.
BJOG ; 124(1): 61-69, 2017 01.
Artículo en Inglés | MEDLINE | ID: mdl-27396541

RESUMEN

Bacterial vaginosis (BV), the change from a Lactobacillus-dominant vaginal microbiota to an anaerobic and facultative bacterial dominance, is associated with pathological sequelae. In many BV-positive women their microbiota is in fact normal and unrelated to pathology. Whether or not the dominance of BV-associated bacteria persists depends upon interactions between host and bacterial factors. Inconsistencies in diagnosis and erroneous associations with pathology may be due to a failure to differentiate between sub-populations of women. It is only in those women with a BV diagnosis in which the identified bacteria are atypical and persist that BV may be a clinical problem requiring intervention. TWEETABLE ABSTRACT: Improved diagnosis of bacterial vaginosis is needed to accurately determine its role in pathology.


Asunto(s)
Vagina , Vaginosis Bacteriana , Bacterias , Femenino , Humanos , Lactobacillus , Microbiota
4.
BJOG ; 122(12): 1580-5, 2015 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-25196575

RESUMEN

OBJECTIVE: Do metabolites in vaginal samples vary between women with different vaginal disorders. DESIGN: Cross-sectional study. SETTING: Campinas, Brazil. SAMPLE: Seventy-seven women (39.9%) with no vaginal disorder, 52 women (26.9%) with vulvovaginal candidiasis (VVC), 43 women (22.3%) with bacterial vaginosis (BV), and 21 women (10.9%) with cytolytic vaginosis (CTV). METHOD: Concentrations of D- and L-lactic acid, extracellular matrix metalloproteinase inducer (EMMPRIN), and matrix metalloproteinase-8 (MMP-8), and the influence of Candida albicans on EMMPRIN production by cultured vaginal epithelial cells, were determined by enzyme-linked immunosorbent assay (ELISA). Associations were determined by the Mann-Whitney U-test and by Spearman's rank correlation test. MAIN OUTCOME MEASURES: Metabolite levels and their correlation with diagnoses. RESULTS: Vaginal concentrations of D- and L-lactic acid were reduced from control levels in BV (P < 0.0001); L-lactic acid levels were elevated in CTV (P = 0.0116). EMMPRIN and MMP-8 concentrations were elevated in VVC (P < 0.0001). EMMPRIN and L-lactic acid concentrations (P ≤ 0.008), but not EMMPRIN and D-lactic acid, were correlated in all groups. EMMPRIN also increased in proportion with the ratio of L- to D-lactic acid in controls and in women with BV (P ≤ 0.009). Concentrations of EMMPRIN and MMP-8 were correlated in controls and women with VVC (P ≤ 0.0002). Candida albicans induced EMMPRIN release from vaginal epithelial cells. CONCLUSIONS: Vaginal secretions from women with BV are deficient in D- and L-lactic acid, women with VVC have elevated EMMPRIN and MMP-8 levels, and women with CTV have elevated L-lactic acid levels. These deviations may contribute to the clinical signs, symptoms, and sequelae that are characteristic of these disorders.


Asunto(s)
Basigina/metabolismo , Candidiasis Vulvovaginal/metabolismo , Ácido Láctico/metabolismo , Metaloproteinasa 8 de la Matriz/metabolismo , Vagina/microbiología , Vaginosis Bacteriana/metabolismo , Adulto , Líquidos Corporales/metabolismo , Brasil , Candidiasis Vulvovaginal/microbiología , Estudios Transversales , Ensayo de Inmunoadsorción Enzimática , Células Epiteliales , Femenino , Humanos , Vaginosis Bacteriana/microbiología
5.
Hum Reprod ; 29(12): 2794-801, 2014 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-25316444

RESUMEN

STUDY QUESTION: What are the clinical efficacy and perinatal outcomes following transfer of vitrified blastocysts compared with transfer of fresh or of slow frozen blastocysts? SUMMARY ANSWER: Compared with slow frozen blastocysts, vitrified blastocysts resulted in significantly higher clinical pregnancy and live delivery rates with similar perinatal outcomes at population level. WHAT IS KNOWN ALREADY: Although vitrification has been reported to be associated with significantly increased post-thaw survival rates compared with slow freezing, there has been a lack of general consensus over which method of cryopreservation (vitrification versus slow freezing) is most appropriate for blastocysts. STUDY DESIGN, SIZE, DURATION: A population-based cohort of autologous fresh and initiated thaw cycles (a cycle where embryos were thawed with intention to transfer) performed between January 2009 and December 2011 in Australia and New Zealand was evaluated retrospectively. A total of 46 890 fresh blastocyst transfer cycles, 12 852 initiated slow frozen blastocyst thaw cycles and 20 887 initiated vitrified blastocyst warming cycles were included in the data analysis. PARTICIPANTS/MATERIALS, SETTING, METHODS: Pairwise comparisons were made between the vitrified blastocyst group and slow frozen or fresh blastocyst group. A Chi-square test was used for categorical variables and t-test was used for continuous variables. Cox regression was used to examine the pregnancy outcomes (clinical pregnancy rate, miscarriage rate and live delivery rate) and perinatal outcomes (preterm delivery, low birthweight births, small for gestational age (SGA) births, large for gestational age (LGA) births and perinatal mortality) following transfer of fresh, slow frozen and vitrified blastocysts. MAIN RESULTS AND THE ROLE OF CHANCE: The 46 890 fresh blastocyst transfers, 11 644 slow frozen blastocyst transfers and 19 978 vitrified blastocyst transfers resulted in 16 845, 2766 and 6537 clinical pregnancies, which led to 13 049, 2065 and 4955 live deliveries, respectively. Compared with slow frozen blastocyst transfer cycles, vitrified blastocyst transfer cycles resulted in a significantly higher clinical pregnancy rate (adjusted relative risk (ARR): 1.47, 95% confidence intervals (CI): 1.39-1.55) and live delivery rate (ARR: 1.41, 95% CI: 1.34-1.49). Compared with singletons born after transfer of fresh blastocysts, singletons born after transfer of vitrified blastocysts were at 14% less risk of being born preterm (ARR: 0.86, 95% CI: 0.77-0.96), 33% less risk of being low birthweight (ARR: 0.67, 95% CI: 0.58-0.78) and 40% less risk of being SGA (ARR: 0.60, 95% CI: 0.53-0.68). LIMITATIONS, REASONS FOR CAUTION: A limitation of this population-based study is the lack of information available on clinic-specific cryopreservation protocols and processes for slow freezing-thaw and vitrification-warm of blastocysts and the potential impact on outcomes. WIDER IMPLICATIONS OF THE FINDINGS: This study presents population-based evidence on clinical efficacy and perinatal outcomes associated with transfer of fresh, slow frozen and vitrified blastocysts. Vitrified blastocyst transfer resulted in significantly higher clinical pregnancy and live delivery rates with similar perinatal outcomes compared with slow frozen blastocyst transfer. Comparably better perinatal outcomes were reported for singletons born after transfer of vitrified blastocysts than singletons born after transfer of fresh blastocysts. Elective vitrification could be considered as an alternative embryo transfer strategy to achieve better perinatal outcomes following Assisted Reproduction Technology (ART) treatment. STUDY FUNDING/COMPETING INTERESTS: No specific funding was obtained. The authors have no conflicts of interest to declare.


Asunto(s)
Técnicas de Cultivo de Embriones , Técnicas Reproductivas Asistidas , Estudios de Cohortes , Criopreservación/métodos , Transferencia de Embrión , Femenino , Humanos , Infertilidad/terapia , Nacimiento Vivo , Embarazo , Índice de Embarazo , Resultado del Tratamiento , Vitrificación
6.
Reprod Biomed Online ; 28(1): 14-38, 2014 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-24269084

RESUMEN

Recurrent implantation failure refers to failure to achieve a clinical pregnancy after transfer of at least four good-quality embryos in a minimum of three fresh or frozen cycles in a woman under the age of 40 years. The failure to implant may be a consequence of embryo or uterine factors. Thorough investigations should be carried out to ascertain whether there is any underlying cause of the condition. Ovarian function should be assessed by measurement of antral follicle count, FSH and anti-Mu¨llerian hormone. Increased sperm DNA fragmentation may be a contributory cause. Various uterine pathology including fibroids, endometrial polyps, congenital anomalies and intrauterine adhesions should be excluded by ultrasonography and hysteroscopy. Hydrosalpinges are a recognized cause of implantation failure and should be excluded by hysterosalpingogram; if necessary, laparoscopy should be performed to confirm or refute the diagnosis. Treatment offered should be evidence based, aimed at improving embryo quality or endometrial receptivity. Gamete donation or surrogacy may be necessary if there is no realistic chance of success with further IVF attempts.


Asunto(s)
Implantación del Embrión/fisiología , Transferencia de Embrión/métodos , Infertilidad/terapia , Ovario/fisiología , Útero/patología , Adulto , Manejo de la Enfermedad , Femenino , Humanos , Histerosalpingografía , Infertilidad/etiología , Cariotipificación , Masculino , Oocitos/citología , Embarazo , Resultado del Embarazo , Recurrencia , Espermatozoides/citología , Insuficiencia del Tratamiento , Ultrasonografía , Útero/diagnóstico por imagen
7.
BJOG ; 121(7): 801-8, 2014 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-24506514

RESUMEN

Autophagy is a highly conserved process by which defective organelles, non-functional proteins, and intracellular microorganisms become sequestered within structures called autophagosomes, which fuse with lysosomes and the engulfed components are degraded by lysosomal enzymes. In microbial autophagy degraded peptides are used to induce antigen-specific acquired immunity. Viruses, bacteria, fungi, and protozoa have developed strategies to subvert autophagy and/or to use this process to promote their replication and persistence. This review details the mechanisms by which microorganisms that infect the female genital tract and/or are detrimental to pregnancy interact with this host defence mechanism. Based on an understanding of autophagy-related pathological mechanisms, we propose new avenues for research to more effectively prevent and/or treat these infectious diseases.


Asunto(s)
Autofagia , Investigación Biomédica , Infecciones del Sistema Genital/microbiología , Candidiasis/microbiología , Infecciones por Chlamydia/microbiología , Chlamydia trachomatis , Femenino , Herpes Genital/virología , Humanos , Embarazo , Complicaciones Infecciosas del Embarazo/microbiología
8.
Hum Reprod ; 28(1): 138-51, 2013 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-23081872

RESUMEN

STUDY QUESTION: Does the use of a digital home ovulation test have any effect on the level of stress in women seeking to conceive? SUMMARY ANSWER: No difference was found in levels of stress between women using digital ovulation tests to time intercourse compared with women who were trying to conceive without any additional aids: in addition, their use did not negatively impact time to conception in users but may provide additional benefits, including an increased understanding of the menstrual cycle, reassurance and confidence in focusing conception attempts to the correct time in the cycle. WHAT IS KNOWN ALREADY: It has been suggested that timing of intercourse in such a way that it coincides with ovulation by using ovulation tests can lead to emotional distress; however, no study has been conducted to investigate this hypothesis specifically, until now. STUDY DESIGN, SIZE AND DURATION: The study was performed over two complete menstrual cycles as a prospective, randomized, controlled trial including quantitative and qualitative methods. The intervention (test) group were given digital ovulation tests to time intercourse to the most fertile time of the cycle and the control group were provided with the current National Institute for Health and Clinical Excellence guidelines for increasing the chances of conception (intercourse every 2-3 days) and asked not to use any additional methods to time when ovulation occurs. PARTICIPANTS/MATERIALS, SETTING AND METHODS: A total of 210 women who were seeking to conceive were recruited from the general UK population. A total of 115 women were randomized to the test group and 95 to the control group through block randomization. The positive and negative affect schedule (PANAS) and the Perceived Stress Scale (PSS) were used to measure subjective stress levels, the Short-Form 12 health survey was used as a measure of general health and well-being and urine samples were measured for biochemical markers of stress including urinary cortisol. Qualitative data were collected in the form of a telephone interview upon study completion. MAIN RESULTS AND THE ROLE OF CHANCE: There was no evidence for a difference either in total stress as measured using the PSS or in total positive or negative affect using the PANAS questionnaire between the test and control groups at any time point for the duration of the study. During cycle 1, for example, on Day 6, the difference in total stress score (test-control) was -0.62 [95% confidence interval (CI) -2.47 to 1.24] and on the day of the LH surge, it was 0.53 (95% CI -1.38 to 2.44). In addition, no correlation was observed between time trying to conceive and levels of stress, or between age and levels of stress, and no evidence was found to show that stress affected whether or not a pregnancy was achieved. There is also no evidence that the biochemistry measurements are related to whether a pregnancy was achieved or of a difference in biochemistry between the treatment groups. The use of digital ovulation tests did not negatively affect time to conception and with an adequately sized study, could potentially show improvement. To ensure that the results of this study were not affected by chance, we used a number of different methods for measuring stress, each of which had been independently validated. LIMITATIONS AND REASONS FOR CAUTION: Randomization occurred before the start of the study because of the need to provide the ovulation tests in readiness for Day 6 of the first cycle. As a consequence, a number of women fell pregnant during this period (22 and 13 in the test and control groups, respectively). A further 15 women were either lost to follow-up or withdrew consent prior to study start. Pregnancy rate was higher overall in the test group, so to ensure that there were sufficient data from women who failed to become pregnant in the test group, we implemented an additional biased recruitment. This second cohort may have been different from the first, although no significant differences were observed between the two phases of recruitment for any of the information collected upon admission to the study. WIDER IMPLICATIONS OF THE FINDINGS: Women who seek medical advice while trying to conceive should not be discouraged by health care professionals from using digital ovulation tests in order to time intercourse. The cohort of women recruited to this study initially had no evidence of infertility and were looking to conceive in a non-medical setting. A separate study to assess the impact of home ovulation tests in a subfertile population would be of interest and complementary to the present study. STUDY FUNDING/COMPETING INTERESTS: This study was funded by SPD Swiss Precision Diagnostics, GmbH, manufacturer of Clearblue(®) pregnancy and ovulation tests. SPD Development Company Ltd is a wholly owned subsidiary of SPD Swiss Precision Diagnostics GmbH; together referred to as SPD. TRIAL REGISTRATION NUMBER: NCT01084304 (www.clinicaltrials.gov).


Asunto(s)
Detección de la Ovulación , Autocuidado/efectos adversos , Estrés Psicológico/etiología , Adolescente , Adulto , Biomarcadores/orina , Estudios de Cohortes , Femenino , Guías como Asunto , Conocimientos, Actitudes y Práctica en Salud , Humanos , Hidrocortisona/orina , Perdida de Seguimiento , Pacientes Desistentes del Tratamiento , Embarazo , Índice de Embarazo , Análisis de Componente Principal , Escalas de Valoración Psiquiátrica , Estrés Psicológico/orina , Tiempo para Quedar Embarazada , Reino Unido/epidemiología , Adulto Joven
9.
J Obstet Gynaecol ; 33(3): 285-8, 2013 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-23550860

RESUMEN

The role of prolactin in early pregnancy is controversial. The aim of this study was to evaluate the relationship between serum prolactin concentration and the risk of miscarriage in women with unexplained recurrent miscarriage (RM). A series of 174 women with unexplained RM, who had serum prolactin concentrations measured from January 2000 to September 2009 at the Recurrent Miscarriage Clinic in Royal Hallamshire Hospital in Sheffield, were included in this study. Among the 174 patients with unexplained RM, 40 patients did not conceive during the study period, 9 were lost to follow-up and 125 patients conceived again. Patients who did not conceive were significantly older than those who conceived (p < 0.05, OR: 1.08, 95% CI: 1.03-1.13). Among those who conceived again, the pregnancy outcome data were available for analysis in 109 patients. Those who miscarried were older (p < 0.05, OR: 1.1, 95% CI: 1.01-1.22) and had significantly lower serum prolactin concentrations (p < 0.05, adjusted OR: 0.99, 95% CI: 0.97-0.99) after adjustment has been made for age, than those who had a live birth. Lower basal serum prolactin concentrations were associated with an increased risk of miscarriage in a subsequent pregnancy in women with unexplained RM.


Asunto(s)
Aborto Habitual/sangre , Resultado del Embarazo , Prolactina/sangre , Adulto , Femenino , Humanos , Embarazo
10.
Mol Cell Endocrinol ; 578: 112049, 2023 Dec 01.
Artículo en Inglés | MEDLINE | ID: mdl-37666445

RESUMEN

Bone morphogenetic protein 15 (BMP15) and growth differentiation factor 9 (GDF9) are oocyte-specific paracrine factors which regulate ovarian cumulus cell (CC) functions. This study aimed to investigate if BMP15 and GDF9 bound to CCs can be characterized, quantified, and show an association with IVF outcomes in infertile women. BMP15 and GDF9 ELISAs were validated and applied to discarded CC extracts. Pooled CCs from individual patients were collected from 120 (cohort 1; BMP15 only) and 81 infertility patients (cohort 2; BMP15 and GDF9) undergoing superovulation. BMP15 and GDF9 levels expressed per CC DNA were correlated with maternal age, clinical and embryology data. Total BMP15 and GDF9 were highly correlated with each other (r = 0.9, p < 0.001). The GDF9:BMP15 ratio was unrelated to oocyte number or age. BMP15/CC DNA and GDF9/CC DNA were unaffected by the type of superovulation and were not related to oocyte/embryo outcomes.

11.
Reprod Biomed Online ; 25(2): 180-9, 2012 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-22687324

RESUMEN

Stress arousal may compromise the feedback regulation of the hypothalamo-pituitary-adrenal axis, releasing stress-related biomarkers and thereby affecting establishment of pregnancy. This study examined the relationship between stress and recurrent miscarriage (RM) and the impact of stress on establishment of pregnancy. The stress status of 45 patients with unexplained RM and 40 fertile women was investigated with the Fertility Problem Inventory (FPI), Perceived Stress Scale (PSS), Positive and Negative Affect Schedule, peripheral natural killer (NK) cells and cortisol. Patients with unexplained RM had significantly higher scores on the FPI (P<0.05, adjusted OR 1.02), PSS (P<0.05, adjusted OR 1.13) and Negative Affect scale (P<0.05, adjusted OR 1.12) and lower scores on the Positive Affect scale (P<0.05, adjusted OR 0.89) than fertile controls. Patients who had live births (n=20) during the study period had significantly lower scores in the Positive Affect scale (P<0.05, adjusted OR 1.17) than those who miscarried (n=10). There was a little association between psychological stress measurements and biochemical stress measurements. These results suggest that stress is a risk factor of RM. Within women with RM, moderate stress appears to be associated with improved pregnancy outcome.


Asunto(s)
Aborto Habitual/epidemiología , Aborto Habitual/etiología , Estrés Psicológico/complicaciones , Afecto/fisiología , Recuento de Células , Inglaterra/epidemiología , Femenino , Humanos , Hidrocortisona/sangre , Células Asesinas Naturales/fisiología , Embarazo , Factores de Riesgo , Estadísticas no Paramétricas , Encuestas y Cuestionarios
15.
Reprod Biomed Online ; 20(6): 861-5, 2010 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-20378408

RESUMEN

There is continuing debate concerning the relationship between cigarette smoking and premature ovarian failure. The aim of this retrospective data analysis was to investigate whether smoking has a measurable effect on early follicular serum concentrations of inhibin B hormone, FSH and anti-Müllerian hormone (AMH) in women of reproductive age. A database containing data on age, smoking status and serum concentrations of inhibin B, FSH and AMH was analysed. Pearson's correlation coefficient was calculated to determine the correlation between hormone concentrations and age. One-way analysis of variance was used to determine any significant difference in age between smoking categories and a univariate general linear model was used to compare geometric means and geometric mean ratios of hormone concentrations in relation to smoking status. Serum concentrations of inhibin B were significantly lower in women who had ever smoked cigarettes: F(2,332) = 3.371, P = 0.036. There was no statistically significant difference in FSH or AMH concentrations although a trend towards lower AMH concentrations in smokers was observed. This analysis provides evidence of an advancement of ovarian ageing in women who smoke cigarettes and is relevant to women of childbearing age who wish to avoid premature decline in fertility.


Asunto(s)
Hormonas/sangre , Nicotiana , Fumar/sangre , Adulto , Humanos , Persona de Mediana Edad , Estudios Retrospectivos
16.
Hum Reprod Open ; 2020(4): hoaa045, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-33134561

RESUMEN

STUDY QUESTION: What is the evidence to guide the management of women who wish to conceive following abdominopelvic radiotherapy (AP RT) or total body irradiation (TBI)? SUMMARY ANSWER: Pregnancy is possible, even following higher doses of post-pubertal uterine radiation exposure; however, it is associated with adverse reproductive sequelae and pregnancies must be managed in a high-risk obstetric unit. WHAT IS KNOWN ALREADY: In addition to primary ovarian insufficiency, female survivors who are treated with AP RT and TBI are at risk of damage to the uterus. This may impact on its function and manifest as adverse reproductive sequelae. STUDY DESIGN SIZE DURATION: A review of the literature was carried out and a multidisciplinary working group provided expert opinion regarding assessment of the uterus and obstetric management. PARTICIPANTS/MATERIALS SETTING METHODS: Reproductive outcomes for postpubertal women with uterine radiation exposure in the form of AP RT or TBI were reviewed. This included Pubmed listed peer-reviewed publications from 1990 to 2019, and limited to English language.. MAIN RESULTS AND THE ROLE OF CHANCE: The prepubertal uterus is much more vulnerable to the effects of radiation than after puberty. Almost all available information about the impact of radiation on the uterus comes from studies of radiation exposure during childhood or adolescence.An uncomplicated pregnancy is possible, even with doses as high as 54 Gy. Therefore, tumour treatment doses alone cannot at present be used to accurately predict uterine damage. LIMITATIONS REASONS FOR CAUTION: Much of the data cannot be readily extrapolated to adult women who have had uterine radiation and the publications concerning adult women treated with AP RT are largely limited to case reports. WIDER IMPLICATIONS OF THE FINDINGS: This analysis offers clinical guidance and assists with patient counselling. It is important to include patients who have undergone AP RT or TBI in prospective studies to provide further evidence regarding uterine function, pregnancy outcomes and correlation of imaging with clinical outcomes. STUDY FUNDING/COMPETING INTERESTS: This study received no funding and there are no conflicts of interest. TRIAL REGISTRATION NUMBER: N/A.

17.
Hum Reprod ; 24(3): 626-32, 2009 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-19056775

RESUMEN

BACKGROUND: Over the past decade, demand for fertility treatments has increased as a result of delaying time to first pregnancy and growing awareness and acceptance of available treatment options. Despite increasing demand, health authorities often view infertility as a low health priority and consequently limit access to treatments by rationing and limiting funds. METHODS: To assess the long-term economic benefits attributed to in vitro fertilization (IVF)-conceived children, we developed a health investment model to evaluate whether state-funded IVF programmes in the UK represent sound fiscal policies. Based on the average investment cost to conceive an IVF singleton, we describe the present value of net taxes derived from gross taxes paid minus direct government transfers received (e.g. education, health, pension) over the lifetime of the child. To establish the present value of investing in IVF, we have discounted all costs from benefits (i.e. lifetime taxes paid) using UK Treasury department rates based on a singleton delivery with similar characteristics for education, earnings, health and life expectancy to a naturally conceived child. RESULTS: The lifetime discounted value of net taxes from an IVF-conceived child with mother aged 35 is pound 109,939 compared with pound 122,127 for a naturally conceived child. The lifetime undiscounted net tax contribution for the IVF-conceived child and naturally conceived child are pound 603,000 and pound 616,000, respectively. CONCLUSIONS: An investment of pound 12,931 to achieve an IVF singleton is actually worth 8.5-times this amount to the UK Treasury in discounted future tax revenue. The analysis underscores that costs to the health sector are actually investments when a broader government perspective is considered over a longer period of time.


Asunto(s)
Fertilización In Vitro/economía , Financiación Gubernamental/estadística & datos numéricos , Costos de la Atención en Salud/estadística & datos numéricos , Política de Salud/economía , Infertilidad/terapia , Impuestos/estadística & datos numéricos , Contabilidad , Gobierno Federal , Femenino , Fertilización In Vitro/métodos , Predicción , Humanos , Modelos Económicos , Pensiones , Embarazo , Impuestos/economía , Reino Unido
18.
Hum Reprod ; 24(4): 966-75, 2009 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-19095663

RESUMEN

BACKGROUND: Treatment of obesity-related anovulation poses a significant clinical challenge. Occasionally, the use of antiobesity medications such as orlistat or insulin sensitizing agents such as metformin is sometimes indicated in these patients. This study aimed to compare the effects of metformin and orlistat for improving ovulation in obese anovulatory women. METHODS: This was an open-label RCT. A total of 40 women were randomized to receive either metformin (n = 20) or orlistat (n = 20). BMI as well as the androgen profile and the ovulatory status were assessed at baseline and at four weekly intervals for 3 months. Different anthropometric and endocrine parameters were also assessed as possible predictors of ovulation. RESULTS: There was no significant difference between the two study arms regarding the ovulation rate for metformin and orlistat [40% (n = 8/20) and 25% (n = 5/20), respectively, P = 0.31]. Both arms showed a significant drop in the BMI, testosterone and androstendione concentrations (P < 0.05), but there was no difference between the two arms. Patients who ovulated had significantly lower concentrations of baseline LH, androstendione, dehydroepiandrosterone and free androgen index (P < 0.05). Among these factors, a low baseline LH was found to be the only independent predictor of ovulation (area under curve, 0.85). CONCLUSIONS: Both metformin and orlistat show a similar effect on weight loss, ovulation rates and androgen concentrations. However, the effects on ovulation rates need to be confirmed in larger studies. The presence of a low baseline serum LH was found to be the most important predictor of ovulation. The study was registered at clinicaltrials.gov. NCT00292799.


Asunto(s)
Anovulación/tratamiento farmacológico , Anovulación/etiología , Fármacos Antiobesidad/uso terapéutico , Hipoglucemiantes/uso terapéutico , Lactonas/uso terapéutico , Metformina/uso terapéutico , Obesidad/complicaciones , Obesidad/tratamiento farmacológico , Adolescente , Adulto , Andrógenos/sangre , Anovulación/patología , Anovulación/fisiopatología , Femenino , Humanos , Hormona Luteinizante/sangre , Obesidad/patología , Obesidad/fisiopatología , Orlistat , Ovulación/efectos de los fármacos , Pérdida de Peso/efectos de los fármacos , Adulto Joven
19.
Hum Reprod ; 24(11): 2760-6, 2009 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-19640893

RESUMEN

BACKGROUND: Anti-Müllerian hormone (AMH) has been implicated in the pathogenesis of polycystic ovary syndrome (PCOS). The aim of this study was to measure circulating AMH before laparoscopic ovarian diathermy (LOD) to evaluate its prognostic value for an ovulatory response and to investigate AMH changes after LOD to further explore the effects of LOD. METHODS: This prospective study included anovulatory women with PCOS undergoing LOD (n = 29) or receiving clomiphene citrate (n = 18). Plasma AMH concentrations were measured before and 1 week after treatment. Further measurements of AMH were made at 3- and 6-month follow-up. RESULTS: The pretreatment median (range) plasma AMH concentrations were 6.1 (1.0-21.0) and 5.7 (1.3-9.5) ng/ml in women having LOD and clomiphene citrate treatment, respectively. Women who ovulated after LOD (n = 24) had a significantly (P = 0.032) lower pre-operative AMH [5.6 (1.0-21.0) ng/ml] compared with the non-responders [9.0 (6.1-17.1) ng/ml]. Using receiver-operating characteristic curve analysis, AMH was found to be a useful predictor of no ovulation after LOD with area under the curve of 0.804 (P = 0.025). Using a cut-off of 7.7 ng/ml, AMH had a sensitivity of 78% and a specificity of 76% in the prediction of no ovulation after LOD. For all patients (n = 47, clomiphene citrate or LOD), plasma AMH >or=7.7 ng/ml was associated with a reduced chance of ovulation after treatment (P = 0.004). Following LOD, the median AMH concentration significantly (P = 0.003) decreased to 4.7 (0.3-15.1) ng/ml and remained low at 3- and 6-month follow-up. CONCLUSIONS: Pretreatment circulating AMH level seems to be a good predictor of the ovarian response to LOD.


Asunto(s)
Anovulación/cirugía , Hormona Antimülleriana/sangre , Electrocoagulación , Síndrome del Ovario Poliquístico/cirugía , Adulto , Anovulación/sangre , Anovulación/complicaciones , Femenino , Humanos , Laparoscopía , Síndrome del Ovario Poliquístico/sangre , Síndrome del Ovario Poliquístico/complicaciones , Estudios Prospectivos , Resultado del Tratamiento
20.
Hum Reprod ; 24(11): 2796-800, 2009 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-19625316

RESUMEN

BACKGROUND: Authorities concerned by rising healthcare costs have a tendency to target reproductive treatments because of the perception that infertility is a low priority. In 2004 German health authorities introduced a 50% co-payment for patients, in an effort to save cost. We explored the impact of this pricing policy on the utilization of reproductive treatments in Germany. METHODS: Using aggregated annual in-vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) cycle data in Germany, we evaluated the relationship between changes in the number of cycles in relation to changes in costs faced by consumers following the introduction of a patient co-payment from 'no fees' to 1500-2000 euros by estimating the short-run price-elasticity of demand. The impact of introducing patient co-payments for IVF/ICSI on the likelihood of switching to other low-cost fertility treatments was evaluated using the cross-price elasticity methodology. RESULTS The reduction in demand for IVF and ICSI cycles in the year following the introduction of patient co-payments resulted in elasticities of -0.41 and -0.34, respectively. The price-elasticity for the combined reduction of IVF/ICSI in relation to the co-payment was estimated to be -0.36. The cross-price elasticity for clomifene was close to zero (-0.01) suggesting that demand for these interventions are independent of each other and no substitution occurred. CONCLUSIONS: We report price elasticities for IVF and ICSI of -0.41 and -0.34 after introducing a 500-2000 euros co-payment. These findings likely represent short-run elasticities that are likely to vary over time as factors that influence the supply and demand for fertility treatments change.


Asunto(s)
Seguro de Costos Compartidos , Fertilización In Vitro/economía , Inyecciones de Esperma Intracitoplasmáticas/economía , Ahorro de Costo , Alemania , Humanos , Estudios Retrospectivos
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