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2.
J Pers Med ; 13(7)2023 Jul 17.
Artigo em Inglês | MEDLINE | ID: mdl-37511761

RESUMO

No major breakthroughs have entered mainstream clinical fertility practice since egg donation and intracytoplasmic sperm injection decades ago, and oocyte deficits secondary to advanced age continue as the main manifestation of diminished ovarian reserve. In the meantime, several unproven IVF 'accessories' have emerged including so-called ovarian rejuvenation which entails placing fresh autologous platelet-rich plasma (PRP) directly into ovarian tissue. Among cellular responses attributed to this intervention are reduced oxidative stress, slowed apoptosis and improved metabolism. Besides having an impact on the existing follicle pool, platelet growth factors might also facilitate de novo oocyte recruitment by specified gene upregulation targeting uncommitted ovarian stem cells. Given that disordered activity at the mechanistic target of rapamycin (mTOR) has been shown to exacerbate or accelerate ovarian aging, PRP-discharged plasma cytokines combined with mTOR suppression by pulsed/cyclic rapamycin represents a novel fusion technique to enhance ovarian function. While beneficial effects have already been observed experimentally in oocytes and embryos with mTOR inhibition alone, this proposal is the first to discuss intraovarian platelet cytokines followed by low-dose, phased rapamycin. For refractory cases, this investigational, tailored approach could amplify or sustain ovarian capacity sufficient to permit retrieval of competent oocytes via distinct but complementary pathways-thus reducing dependency on oocyte donation.

3.
J Assist Reprod Genet ; 40(2): 381-387, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36574140

RESUMO

PURPOSE: Using a comprehensive flow cytometric panel, simultaneously obtained mid-luteal immunophenotypes from peripheral blood and endometrium were compared and values correlated. Is a peripheral blood evaluation of reproductive immunophenotype status meritorious relative to local endometrial evaluation to directly assess the peri-implantation environment? METHODS: Fifty-five patients had a mid-luteal biopsy to assess the local endometrial immunophenotype, while simultaneously providing a peripheral blood sample for analysis. Both samples were immediately assessed using a comprehensive multi-parameter panel, and lymphocyte subpopulations were described and compared. RESULTS: Distinct lymphocyte proportions and percentage differences were noted across the two compartments, confirming the hypothesis that they are distinct environments. The ratio of CD4 + to CD8 + T cells were reversed between the two compartments, as were Th1 and Th2-type CD4 + T cell ratios. Despite these differences, some direct relationships were noted. Positive Pearson correlations were found between the levels of CD57 + expressing natural killer cells, CD3 + NK-T cells and CD4 + Th1 cells in both compartments. CONCLUSIONS: Flow cytometric evaluation provides a rapid and objective analysis of lymphocyte subpopulations. Endometrial biopsies have become the gold standard technique to assess the uterine immunophenotype in adverse reproductive outcome, but there may still a place for peripheral blood evaluation in this context. The findings demonstrate significant variations in cellular proportions across the two regions, but some positive correlations are present. Immunological assessment of these specific peripheral blood lymphocyte subtypes may provide insight into patients with potential alterations of the uterine immune environment, without the risks and inconveniences associated with an invasive procedure.


Assuntos
Endométrio , Citometria de Fluxo , Imunofenotipagem , Feminino , Humanos , Endométrio/imunologia , Citometria de Fluxo/métodos , Imunofenotipagem/métodos , Células Matadoras Naturais , Reprodução , Útero , Implantação do Embrião/imunologia , Técnicas de Reprodução Assistida
4.
J Bone Metab ; 29(4): 271-277, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-36529870

RESUMO

This study covers the 5-year interval prior to COVID-19 admission for an otherwise healthy 46,XX adolescent expanding the developmental characterization of an unusual convergence of amenorrhea and genetic mutations. The patient experienced rapid collapse of endogenous estradiol output followed by secondary amenorrhea at 13 years of age. Euploid, diffusely hypocellular bone marrow was present on biopsy, although anemia or reduced total immunoglobulin production was not identified. Bone density was 1.5 years below mean; multiple dental anomalies were also documented. While alterations in "master regulator" genes RUNX2, SALL1, and SAMD9 are usually diagnosed in early childhood when missed milestones, dysmorphic features, or chronic infection/immune impairment warrant cross-disciplinary evaluation, this study is the first known report to associate ovarian failure with adolescence with such variants. Immunoglobulin patterns, osseous histomorphology, dentition, hematology/renal screening, pelvic anatomy, ovarian reserve data, and thyroid findings are also correlated. Although severe pathology is typically encountered when any of these genes are disrupted alone, this longitudinal survey reveals that a mild phenotype can prevail if these 3 variants occur simultaneously. Periodic monitoring is planned given the unclassified status of this unique mutation set.

5.
Reprod Fertil ; 2022 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-36173705

RESUMO

Purpose Can a comprehensive flow cytometry panel be used to assess immunophenotype profiles in menstrual blood of patients experiencing reproductive failure and age matched controls of proven fertility? Methods 58 recurrent pregnancy loss and repeated implantation failure patients, along with 15 age matched controls of proven fertility, had menstrual blood samples obtained within the first 24 hours of the onset of menstruation to non-invasively assess the local immunophenotype. Using a comprehensive multi-parameter flow panel the lymphocyte sub-populations were described and compared. Results Relative to well established peripheral blood immunophenotyping values, distinct lymphocyte population differences were noted between the subgroups. The ratios of CD4+ and CD8+ T-cells were inverted relative to peripheral blood and uterine NK cells represented by CD56bright were distinctly visualised, emphasising the distinction of menstrual and peripheral blood. Relative to controls there were marked increases in CD3+ve T-cells (p=0.009), CD4:CD8 ratio (p=0.004), CD19 B-cells (p=0.026) and CD56dim NK's (p=0.002) in the reproductive failure cases. Conclusions Flow cytometric evaluation can provide a rapid and objective analysis of lymphocyte subpopulations in many forms of tissue and fluid. The findings show significant variations in cellular composition of immune cells indicating a distinct compartment, with differences between cases and controls. Immunological assessment of the menstrual blood immunophenotype, in clinically appropriate patients, may provide insight into the aetiology of adverse reproductive outcome, without the risks and inconveniences associated with a more invasive endometrial biopsy.

6.
Reprod Fertil ; 2(3): 173-186, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-35118388

RESUMO

Controversy exists regarding the benefits of intravenous intralipid therapy in patients with a poor reproductive history. It is frequently reported that there is no evidence to support the effectiveness, utility or safety for this treatment. While individual studies may be perceived as weak, a systematic review and meta-analysis were performed to determine if there is any advantage to patients. PubMed, Embase and Scopus searches were performed with the target populations being either recurrent pregnancy loss (RPL), or recurrent implantation failure (RIF) undergoing assisted reproductive technology (ART) and receiving intralipid infusions. These cohorts were compared with either placebo, no intervention or alternative treatments. The most relevant outcome measures were considered to be clinical pregnancy rate (CPR), live birth rate (LBR), implantation rate (IR) and miscarriage rate (MR). Twelve studies encompassing 2676 participants met the criteria for selection and were included and reviewed. Treatment of the target population with intralipid led to an improvement in IR (Odds Ratio (OR): 2.97, 2.05-4.29), pregnancy rate (OR: 1.64, 1.31-2.04), and LBR (OR: 2.36, 1.75-3.17), with a reduction in MR (OR: 0.2, 0.14-0.30). Although intravenous intralipid is not recommended as a routine treatment for recurrent miscarriage or implantation failure, there is enough data to suggest consideration in selected patients where routine testing is unremarkable, standard treatments have failed and immunological risk factors are present. The presence of abnormal uterine natural killer (uNK) cells needs more study as a target marker to determine those who could benefit. LAY SUMMARY: There is controversy regarding the benefits and efficacy of intravenous intralipid therapy in patients with a poor reproductive history. It is frequently reported that there is no credible evidence to support their use. A situation we frequently face as medical professionals is patients asking us to consider immune therapy (such as intralipid) for reproductive failure where good quality embryos have been used. Intralipid infusions have been reported to improve pregnancy rates with IVF, and reduce the miscarriage risk in selected patient groups, but study results are not universally accepted. We have performed a detailed review and analysis of the literature to determine if there is any benefit to this immune treatment in specific patient groups. Our paper identified and analyzed 12 studies, finding that treatment with intravenous intralipid leads to an improvement in implantation, pregnancy and live birth rates, with a decrease in miscarriage rate. This study shows that there is evidence to suggest consideration of intralipid in certain patients where standard treatments have failed.


Assuntos
Aborto Habitual , Nascido Vivo , Emulsões , Feminino , Humanos , Fosfolipídeos , Gravidez , Taxa de Gravidez , Óleo de Soja
7.
Reprod Biomed Online ; 39(2): 294-303, 2019 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-31182354

RESUMO

RESEARCH QUESTION: Many techniques now exist to assess the receptivity status of the endometrium. Can a simple low-cost flow cytometric technique be used to rapidly assess uterine receptivity via a luteal phase endometrial biopsy? DESIGN: Epithelial ß3 integrin (EB3) evaluation was undertaken in 300 women presenting with repeated implantation failure or recurrent pregnancy loss who subsequently underwent 710 assisted reproductive technology (ART) cycles. Endometrial tissue was mechanically dissociated and evaluated using specific antibodies to capture integrin expression. Autologous and donor oocyte embryo transfers were evaluated. A 'High', 'Borderline' and 'Low' grading system was developed based on the pattern and percentage expression of EB3 relative to the total endometrial epithelium. Clinical outcomes of the resulting embryo transfers (n = 559) were analysed according to EB3 grading. RESULTS: Based on 180 completed transfers, the clinical pregnancy rate (CPR) per embryo transferred in the donor egg cycles was 41.7%. EB3 results from women with a 'High' grading showed a superior CPR (54.0%) compared with 'Low' (22.2% CPR) or 'Borderline' (37.4%) cases (P = 0.024). Similarly, following 379 autologous oocyte transfers, the CPR was 36.1% overall, with major variations between the 'High' (43.8%), 'Low' (17.5%) and 'Borderline' (34.8%) groups (P = 0.0008). Implantation rates showed similar significant trends in the 'High' versus 'Low' groups of 40.4% versus 16% (P = 0.048) in donor oocyte transfers, and 30.8% versus 16.1% (P = 0.025) in autologous oocyte transfers. CONCLUSIONS: The distribution patterns and percentage expression of EB3 assessed by a flow cytometry grading system shows a significant relationship to implantation rate and CPR success in ART cycles and may thus represent a useful additional tool for the assessment of uterine receptivity.


Assuntos
Epitélio/metabolismo , Integrina beta3/metabolismo , Útero/metabolismo , Aborto Habitual/terapia , Adulto , Biópsia , Implantação do Embrião , Transferência Embrionária , Endométrio/patologia , Feminino , Fertilização in vitro , Citometria de Fluxo , Humanos , Infertilidade Feminina/terapia , Fase Luteal , Oócitos , Fenótipo , Gravidez , Taxa de Gravidez , Técnicas de Reprodução Assistida
8.
J Assist Reprod Genet ; 36(5): 837-846, 2019 May.
Artigo em Inglês | MEDLINE | ID: mdl-30847699

RESUMO

PURPOSE: The uterine immunophenotype is relatively poorly understood, with most studies reporting proportions/percentages. A novel technique to calculate local endometrial lymphocyte concentrations is described, and used to compare results between aetiological subgroups such as repeated implantation failure (RIF) and recurrent pregnancy loss (RPL) with male-factor controls. METHODS: 455 patients had an endometrial biopsy performed. Background history on initial presentation was used to subdivide the population into RIF (n = 149), RPL (n = 121), primary (n = 76) and secondary infertility (n = 80). A control group was identified comprising male factor infertility aetiology with all female investigations normal (n = 29). Endometrial Tissue was assessed using a comprehensive multi-parameter panel. Lymphocyte subpopulations were calculated using flowcount flurospheres and a mathematical correction applied to determine concentrations per milligram of tissue, based on original biopsy weight and volumetric dilutions. RESULTS: The flow cytometry technique was successful in determining population centiles for concentrations of endometrial lymphocyte subsets. Distinct differences were noted across the patient groups. Th2 concentrations were significantly higher in the controls (p = 0.0002). All RPL/infertile populations had increased concentrations of peripheral type NK's (p = 0.016) and B cells (p = 0.045). Relative to male factor controls, CD4+ and CD8+ T lymphocyte populations were increased in RPL patients, and reduced in those with a history of RIF. Th1 concentrations were elevated in the adverse outcome groups (p = 0.032). Concentration centiles alone do not appear to accurately predict outcome with subsequent treatment. CONCLUSIONS: Endometrial biopsy analysis by flow cytometry can provide detailed analysis of constituent lymphocyte subsets by concentration as well as proportion. This novel approach provides additional independent data to further assess the significance of endometrial changes in the setting of reproductive failure.


Assuntos
Aborto Habitual/imunologia , Linfócitos B/imunologia , Implantação do Embrião/imunologia , Endométrio/imunologia , Reprodução , Linfócitos T/imunologia , Aborto Habitual/epidemiologia , Adulto , Linfócitos B/citologia , Endométrio/citologia , Feminino , Humanos , Projetos Piloto , Gravidez , Resultado da Gravidez , Taxa de Gravidez , Estudos Prospectivos , Linfócitos T/citologia
9.
Ir J Med Sci ; 188(3): 893-901, 2019 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-30484068

RESUMO

BACKGROUND: A complete reproductive immunophenotype is poorly described, with most focus on peripheral blood natural killer cells rather than uterine populations. There is debate regarding normal endometrial levels, with no consensus, and much controversy on correlation with implantation/miscarriage. AIMS: Development and validation of a rapid endometrial assessment flow cytometry (FCM) technique, allowing determination of local lymphocyte subset ranges, comparison to peripheral blood, and patient subgroup analysis. METHODS: Prospective pilot, assessing patients with prior implantation, failure offered endometrial biopsy before subsequent ART cycle, functioning as therapeutic scratch. HRT regime administered to standardise environment, and progesterone-primed mid-luteal biopsy (five completed days progestogen, P+5) analysed using comprehensive flow panel to identify lymphocyte subsets. RESULTS: Two hundred patients were recruited in a tertiary university-affiliated ART centre. FCM identified differing lymphocyte ranges between peripheral blood and biopsy. Uterine/decidual natural killer cells are the dominant endometrial subtype. Patients with repeated implantation failure had higher uNK levels (52.4 vs 43.7%, p = 0.01). Conversely, B lymphocytes (0.87 vs 0.72%, p = 0.032), pNK (1.21 vs 0.8%, p = 0.041), and NK-T (2.68 vs 2.26, p = 0.031) cells were higher in recurrent pregnancy loss. CONCLUSION: FCM is widely used to assess cellular populations, but not typically employed for endometrial evaluation. FCM provides a rapid, detailed, and quantitative analysis and reduces inter-observer subjectivity bias. Detailed understanding of the normal endometrial immunophenotype, and associated deviations, may provide insight into the aetiology of infertile patients labelled "unexplained". Failure despite transfer of high grade, or proven euploid blastocysts, is a difficult problem, and endometrial profiling may help identify research areas to determine potential future therapeutic interventions for this difficult to treat population.


Assuntos
Imunofenotipagem/métodos , Células Matadoras Naturais/imunologia , Contagem de Linfócitos/métodos , História Reprodutiva , Útero/irrigação sanguínea , Útero/imunologia , Adulto , Feminino , Humanos , Projetos Piloto , Gravidez , Estudos Prospectivos
10.
J Assist Reprod Genet ; 36(2): 199-210, 2019 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-30194617

RESUMO

PURPOSE: Using a comprehensive flow cytometric panel, do endometrial immune profiles in adverse reproductive outcomes such as repeat implantation failure (RIF) and repeat pregnancy loss (RPL) differ from each other and male-factor controls? METHODS: Six-hundred and twelve patients had an endometrial biopsy to assess the immunophenotype. History on presentation was used to subdivide the population into recurrent implantation failure (RIF) [n = 178], recurrent pregnancy loss (RPL) [n = 155], primary infertility [n = 130] and secondary infertility [n = 114]. A control group was utilised for comparative purposes [n = 35] and lymphocyte subpopulations were described. RESULTS: Distinct lymphocyte percentage differences were noted across the populations. Relative to controls and RPL, patients with a history of RIF had significantly raised uterine NKs (53.2 vs 45.2 & 42.9%, p < 0.0001). All sub-fertile populations had increased percentage peripheral type NKs (p = 0.001), and exhibited increased CD69+ activation (p = 0.005), higher levels of B cells (p < 0.001), elevated CD4:CD8 ratio (p < 0.0001), lower T-regs (p = 0.034) and a higher proportion of Th1+ CD4s (p = 0.001). Patient aetiology confers some distinct findings, RPL; pNK, Bcells and CD4 elevated; RIF; uNK and CD56 raised while CD-8 and NK-T lowered. CONCLUSIONS: Flow cytometric endometrial evaluation has the ability to provide a rapid and objective analysis of lymphocyte subpopulations. The findings show significant variations in cellular proportions of immune cells across the patient categories relative to control tissue. The cell types involved suggest that a potential differential pro-inflammatory bias may exist in patients with a history of adverse reproductive outcomes. Immunological assessment in appropriate populations may provide insight into the underlying aetiology of some cases of reproductive failure.


Assuntos
Implantação do Embrião/imunologia , Endométrio/imunologia , Infertilidade Feminina/imunologia , Reprodução/imunologia , Aborto Habitual/imunologia , Aborto Habitual/patologia , Adulto , Antígenos CD/imunologia , Antígenos de Diferenciação de Linfócitos T/imunologia , Linfócitos B/imunologia , Linfócitos B/ultraestrutura , Antígenos CD8/imunologia , Endométrio/patologia , Endométrio/ultraestrutura , Feminino , Citometria de Fluxo , Humanos , Infertilidade Feminina/patologia , Células Matadoras Naturais/imunologia , Lectinas Tipo C/imunologia , Gravidez , Reprodução/genética , Útero/imunologia , Útero/patologia , Útero/ultraestrutura
11.
Fertil Res Pract ; 4: 7, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30349731

RESUMO

BACKGROUND: The origins of adverse reproductive outcome can be multifactorial, but the contribution of the maternal immune system is considered debatable. Elevated intracellular cytokine ratios have been proposed, although not universally supported, as a marker for immunological dysfunction in implantation and early pregnancy. Poor patient selection or inadequate treatment or testing may be confounding factors. Specific immunomodulation, in carefully selected sub-populations of ART patients with poor reproductive history, despite transfer of good quality blastocysts, may potentially improve clinical outcomes. METHODS: Intracellular cytokine ratios (CKR) were prospectively assessed in 337 patients presenting with a history of implantation failure and/or pregnancy loss, prior to further treatment, and were found to be elevated in 150 (44.5%). Of this group, 134 agreed to initiate a standardised immunotherapy regime (nutraceuticals, prednisolone & intralipids) to evaluate the efficacy of this proposed therapy. Of the intervention population, a small cohort (n = 70) delayed commencing ART for ~ 10 weeks to assess if extended pre-treatment nutraceutical supplementation could normalise CKRs prior to starting ART, and if this conferred additional benefit. RESULTS: Baseline assessment in the intervention population (n = 134) identified 160 miscarriages from 180 total pregnancies (89% miscarriage rate, MR), conceived both spontaneously and by assisted reproduction. Post-treatment analysis of subsequent ART cycles revealed a significant improvement in both implantation (OR 3.0, 2.0-4.5) and miscarriage rates (41/97, 42.2% MR, P < 0.001). Interestingly, pre-treatment normalisation of CKRs appeared to impart marginal extra benefit prior to subsequent fertility treatment with immunotherapy. CONCLUSIONS: Following immunomodulation, significant improvements in both implantation rate and miscarriage rate were seen in this poor prognosis population. This suggests a possible role for both detailed immuno-evaluation of patients with poor reproductive history with good embryo quality, and application of personalised immunotherapy regimes alongside ART in selected cases. Future randomised controlled trials are needed to definitively evaluate this potentially promising therapeutic approach.

12.
Fertil Res Pract ; 4: 1, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29507746

RESUMO

BACKGROUND: Raised intracellular cytokine ratios (CKR) are proposed as a significant risk factor for adverse reproductive outcome. An elevated cytokine ratio, such as between TNFa and/or IFNg to IL-10 is associated with recurrent miscarriage (RM). The use of pharmacological immunomodulators such as TNFα inhibitors in these patients is controversial and not generally recommended due to a lack of conclusive data supporting their use. We evaluated whether the use of anti-oxidants/dietary supplements as an alternative could positively influence CKR's in ART patients. METHODS: A prospective non-placebo control trial of antioxidant treatment for abnormal peripheral inflammatory cytokine ratios was performed. CKRs were assessed using flow cytometry in stimulated versus unstimulated whole blood samples in 337 IVF patients presenting with a previous history of poor outcome (RM or implantation failure). CKR's were found to be elevated in 150/337. 70/150 patients in this elevated group agreed to a 10 week regime of Omega 3, vitamin D3, and B complex, followed by retesting to evaluate effect. RESULTS: Mean cytokine ratios significantly improved between tests. Pre-treatment TNFa:IL-10 ratio improved from 71.6 to 21.0 (p < 0.0001) and IFNg:IL-10 ratio dropped from 24.5 to 12.5 (p < 0.0001). The improved ratios were achieved primarily by an increase in IL-10 expression (P = 0.0007), but also by a moderate decrease in stimulated TNFa expression (p = 0.008). Mean IFNg expression was unchanged (p = 0.42). On an individual basis CKR levels were normalised in 43 patients, improved in 12 and remained unchanged in 15. No significant differences in improvement were found between RM and IF subgroups. CONCLUSIONS: Intracellular cytokine expression levels and ratios were modifiable by the supplement regime employed. Elevated cytokine ratios have been linked with adverse reproductive outcomes, and proposed treatments have included biological immunomodulators which antagonise TNFa, but come with significant associated cost implications and more importantly, cytotoxic side-effects. A dietary regime is more patient friendly and lower risk, while still achieving a similar effect in many patients.

13.
J Assist Reprod Genet ; 33(9): 1135-47, 2016 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-27432256

RESUMO

PURPOSE: This is a comprehensive review of the literature in this field attempting to put the FMR1 gene and its evaluation into context, both in general and for the reproductive health audience. METHODS: Online database search of publications with systematic review of all papers relevant to ovarian reserve and assisted reproduction was done. RESULTS: Relevant papers were identified and assessed, and an attempt was made to understand, rationalize and explain the divergent views in this field of study. Seminal and original illustrations were employed. CONCLUSIONS: FMR1 is a highly conserved gene whose interpretation and effect on outcomes remains controversial in the reproductive health setting. Recent re-evaluations of the commonly accepted normal range have yielded interesting tools for possibly explaining unexpected outcomes in assisted reproduction. Fragile X investigations should perhaps become more routinely assessed in the reproductive health setting, particularly following a failed treatment cycle where oocyte quality is thought to be a contributing factor, or in the presence of a surprise finding of diminished ovarian reserve in a young patient.


Assuntos
Proteína do X Frágil da Deficiência Intelectual/genética , Reserva Ovariana/genética , Reprodução/genética , Técnicas de Reprodução Assistida , Feminino , Humanos , Mutação
14.
Int J Gynaecol Obstet ; 133(2): 226-9, 2016 May.
Artigo em Inglês | MEDLINE | ID: mdl-26878978

RESUMO

OBJECTIVE: To compare the ovarian reserves between female patients with cancer and patients experiencing infertility. METHODS: A retrospective age-matched observational study was performed at Rotunda Hospital, Dublin. The study group included data from all female oncology patients attending for oocyte or embryo cryopreservation between January 1, 2009 and December 31, 2013. Anti-Müllerian hormone (AMH) levels were recorded at patients' initial visits before beginning chemotherapy or radiotherapy. The control group included patients without cancer who had their AMH levels recorded to investigate fertility or as a baseline level prior to beginning assisted reproductive treatment. RESULTS: The records of 118 oncology and 5231 control patients from the study period were identified. There was no difference in AMH levels between patients in the oncology and control groups aged 30-38years; however, significantly lower AMH levels were observed in patients in the oncology group aged 29years and younger (17.89pmol/L vs 23.35pmol/L; P=0.015), or at least 39years (2.65pmol/L vs 5.87pmol/L; P=0.028). CONCLUSION: Before commencing chemotherapy or radiotherapy, patients in the oncology group at the margins of reproductive age had a diminished ovarian reserve compared with the control group. This should be considered when planning optimal doses of follicular stimulating hormone as part of controlled ovarian-stimulation regimes performed for embryo or oocyte cryopreservation prior to chemotherapy or radiotherapy.


Assuntos
Hormônio Antimülleriano/sangue , Criopreservação , Infertilidade Feminina/sangue , Neoplasias/sangue , Reserva Ovariana , Adulto , Feminino , Humanos , Irlanda , Pessoa de Meia-Idade , Estudos Retrospectivos , Adulto Jovem
15.
J Assist Reprod Genet ; 33(4): 481-8, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26852232

RESUMO

PURPOSE: The purpose of this study was to evaluate the serum estradiol (E2) per oocyte ratio (EOR) as a function of selected embryology events and reproductive outcomes with IVF. METHODS: This retrospective analysis included all IVF cycles where oocyte collection and fresh transfer occurred between January 2001 and November 2012 at a single institution. Patients were divided by three age groups (<35, 35-39, and ≥40 years) and further stratified into nine groups based on EOR (measured in pmol/L/oocyte). Terminal serum E2 (pmol/mL) was recorded on day of hCG trigger administration, and fertilization rate, cleavage rate, number of good quality embryos, and reproductive outcomes were recorded for each IVF cycle. RESULTS: During the study interval, 9109 oocyte retrievals were performed for 5499 IVF patients (mean = 1.7 cycles/patient). A total of 63.4 % of transfers were performed on day 3 (n = 4926), while 36.6 % were carried out on day 5 (n = 2843). Clinical pregnancy rates were highest in patients with EOR of 250-750 and declined as this ratio increased, independent of patient age. While the odds ratio (OR) for clinical pregnancy where EOR = 250-750 vs. EOR > 1500 was 3.4 (p < 0.001; 95 % CI 2.67-4.34), no statistically significant correlation was seen in fertilization, cleavage rates or number of good quality embryos as a function of EOR. CONCLUSIONS: Predicting reproductive outcomes with IVF has great utility both for patients and providers. The former have the opportunity to build realistic expectations, and the latter are better able to counsel according to measured clinical parameters. A better understanding of follicular dynamics and ovarian response to gonadotropin stimulation could optimize IVF treatments going forward.


Assuntos
Estradiol/sangue , Fertilização in vitro/métodos , Oócitos/citologia , Técnicas de Reprodução Assistida , Adulto , Transferência Embrionária , Feminino , Humanos , Pessoa de Meia-Idade , Recuperação de Oócitos , Indução da Ovulação , Gravidez , Taxa de Gravidez , Progesterona/sangue
16.
Eur J Obstet Gynecol Reprod Biol ; 193: 136-9, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26298808

RESUMO

OBJECTIVE: Primarily, to assess the performance of three statistical models in predicting successful vaginal birth in patients attempting a trial of labour after one previous lower segment caesarean section (TOLAC). The statistically most reliable models were subsequently subjected to validation testing in a local antenatal population. STUDY DESIGN: A retrospective observational study was performed with study data collected from the Northern Ireland Maternity Service Database (NIMATs). The study population included all women that underwent a TOLAC (n=385) from 2010 to 2012 in a regional UK obstetric unit. Data was collected from the Northern Ireland Maternity Service Database (NIMATs). Area under the curve (AUC) and correlation analysis was performed. RESULTS: Of the three prediction models evaluated, AUC calculations for the Smith et al., Grobman et al. and Troyer and Parisi Models were 0.74, 0.72 and 0.65, respectively. Using the Smith et al. model, 52% of women had a low risk of caesarean section (CS) (predicted VBAC >72%) and 20% had a high risk of CS (predicted VBAC <60%), of whom 20% and 63% had delivery by CS. The fit between observed and predicted outcome in this study cohort using the Smith et al. and Grobman et al. models were greatest (Chi-square test, p=0.228 and 0.904), validating both within the population. CONCLUSION: The Smith et al. and Grobman et al. models could potentially be utilized within the UK to provide women with an informed choice when deciding on mode of delivery after a previous CS.


Assuntos
Modelos Estatísticos , Nascimento Vaginal Após Cesárea , Adulto , Área Sob a Curva , Feminino , Previsões/métodos , Humanos , Irlanda do Norte , Gravidez , Curva ROC , Estudos Retrospectivos , Prova de Trabalho de Parto
17.
Int J Gynaecol Obstet ; 126(1): 67-9, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-24731437

RESUMO

OBJECTIVE: To compare the characteristics of women who select elective repeat cesarean rather than trial of labor after cesarean (TOLAC) for delivery, and to determine individual predictors for success and failure within a TOLAC group and observe differences in maternal and neonatal morbidity. METHODS: The present descriptive, retrospective, observational study was performed in a regional obstetric unit in the United Kingdom. Data were collected from the Northern Ireland Maternity System database on all women who gave birth between April 2010 and April 2012, and had a previous cesarean delivery, and statistical analysis was performed. RESULTS: In total, 893 patients were included in the study: 385 underwent TOLAC and 493 underwent elective repeat cesarean. On comparison, women in the elective repeat cesarean group had a shorter inter-delivery interval and fewer had had a previous vaginal delivery (P<0.005). Predictors for success in the TOLAC group included previous vaginal delivery and a longer inter-delivery interval (P<0.05). Successful vaginal birth after cesarean (VBAC) did not have higher rates of maternal morbidity. CONCLUSION: The majority of patients (56%) chose elective repeat cesarean rather than TOLAC, which has long-term implications both clinically and financially. A validated prediction model might improve patient counseling and identify women with a high likelihood of successful VBAC.


Assuntos
Recesariana/estatística & dados numéricos , Prova de Trabalho de Parto , Nascimento Vaginal Após Cesárea/estatística & dados numéricos , Adulto , Feminino , Humanos , Gravidez , Estudos Retrospectivos
18.
Stud Health Technol Inform ; 121: 266-75, 2006.
Artigo em Inglês | MEDLINE | ID: mdl-17095825

RESUMO

OBJECTIVES: To design a system capable of recording complete and accurate electronic patient records with respect to obstetrics and gynaecology, with the ability to perform instant statistically summaries of data. BACKGROUND: Electronic patient records have been shown to provide numerous benefits for the clinician, with respect to patient consultation, accurate recording of data, medical audit and statistical analysis. In Northern Ireland there is no database designed to cover all the major clinical aspects of obstetrics and gynaecology. This project incorporates all aspects of obstetrics and gynaecology into a single database. METHODS: Database designed using Filemaker pro 7, Macromedia Fireworks 8, and Microsoft photodraw. Problems specific to obstetrics and gynaecology included recording multiple pregnancy data, and the lack of a unique patient number (the current system in Northern Ireland gives patients a unique hospital number, and a separate maternity number for each pregnancy). Linking all of these sources was a major component of this database. The database contains many intrinsic tabulations, relationships, programming scripts and calculations to combine files and calculate important statistical information for clinicians automatically. RESULTS: A successful audit of delivery statistics for December 05 was performed using the system. Several additional audits are currently under completion using the database. The major audit, completion date end April 06, is a 5 month summary of delivery data (Dec-April) based on mode of delivery, Robson groups, and Caesarian -Section rate among specified patient sub-groups. CONCLUSION: The system has been successful in its initial stages with obvious improvements to the medical audit process already apparent. The system should prove to be a valuable addition to the department and ultimately improve patient care. The ability to provide instant access to clinical data and statistics will simplify and improve the audit process, improving clinical governance. The management of the OB/GYN department should benefit greatly.


Assuntos
Sistemas de Gerenciamento de Base de Dados , Ginecologia/organização & administração , Sistemas de Informação Hospitalar , Auditoria Médica , Sistemas Computadorizados de Registros Médicos , Obstetrícia/organização & administração , Redes de Comunicação de Computadores , Apresentação de Dados , Feminino , Ginecologia/normas , Humanos , Irlanda do Norte , Obstetrícia/normas , Gravidez , Software
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