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1.
Reprod Biomed Online ; 49(1): 103887, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38701632

RESUMEN

RESEARCH QUESTION: Could EMBRYOLY, an artificial intelligence embryo evaluation tool, assist embryologists to increase first cycle pregnancy rate and reduce cycles to pregnancy for patients? DESIGN: Data from 11,988 embryos were collected via EMBRYOLY from 2666 egg retrievals (2019-2022) across 11 centres in France, Spain and Morocco using three time-lapse systems (TLS). Data from two independent clinics were also examined. EMBRYOLY's transformer-based model was applied to transferred embryos to evaluate ranking performances against pregnancy and birth outcomes. It was applied to cohorts to rank sibling embryos (including non-transferred) according to their likelihood of clinical pregnancy and to compute the agreement with the embryologist's highest ranked embryo. Its effect on time to pregnancy and first cycle pregnancy rate was evaluated on cohorts with multiple single blastocyst transfers, assuming the embryologist would have considered EMBRYOLY's ranking on the embryos favoured for transfer. RESULTS: EMBRYOLY's score correlated significantly with clinical pregnancies and live births for cleavage and blastocyst transfers. This held true for clinical pregnancies from blastocyst transfers in two independent clinics. In cases of multiple single embryo transfers, embryologists achieved a 19.8% first cycle pregnancy rate, which could have been improved to 44.1% with the adjunctive use of EMBRYOLY (McNemar's test: P < 0.001). This could have reduced cycles to clinical pregnancy from 2.01 to 1.66 (Wilcoxon test: P < 0.001). CONCLUSIONS: EMBRYOLY's potential to enhance first cycle pregnancy rates when combined with embryologists' expertise is highlighted. It reduces the number of unsuccessful cycles for patients across TLS and IVF centres.


Asunto(s)
Inteligencia Artificial , Transferencia de Embrión , Índice de Embarazo , Humanos , Femenino , Embarazo , Transferencia de Embrión/métodos , Adulto , Fertilización In Vitro/métodos , Hermanos
2.
J Assist Reprod Genet ; 41(4): 957-965, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38315419

RESUMEN

PURPOSE: To assess the primary sex ratio (males-to-females at time of conception) in blastocysts from consanguine couples undergoing IVF/ICSI treatments and its correlation with chromosomal constitution. METHOD: A total of 5135 blastocysts were analyzed by preimplantation-genetic testing for aneuploidy (PGT-A) with next-generation sequencing (NGS) from November 2016 to December 2020. From those, a total of 1138 blastocysts were from consanguine couples (CS) and 3997 from non-consanguine couples (NCS). Only blastocysts presenting normal sex chromosome constitution with or without autosomal aneuploidies were included. Primary sex ratio (PSR) of biopsied blastocysts was compared between CS and NCS couples. RESULTS: Expanded blastocysts derived from CS had 47.7% XY versus 52.3% XX constitutions, presenting a PSR of 0.91. In NCS, 48.9% of expanded blastocysts were XY and 51.2% XX, with a less pronounced PSR of 0.95. When stratifying embryos by ploidy, euploid embryos from CS had the lowest PSR (0.87) with 46.6% XY versus 53.4% XX blastocysts (OR 0.89, 95% CI 0.70-1.14; NS), but it did not achieve statistical significance. The lower PSR seemed rather related to euploid embryos from first-degree cousins (PSR = 0.80 versus 0.98 in second-degree cousins, NS). Euploid embryos from NCS presented a PSR of 0.96, with 49.1% XY versus 50.9% XX blastocysts (OR 0.98, 95% CI 0.79-1.22; NS). Significant differences in prevalence of euploidy of specific chromosomes were encountered between CS and NCS. CONCLUSIONS: The primary sex ratio was generally similar in expanded blastocysts from consanguine and non-consanguine couples, with a slight decrease in primary sex ratio of euploid blastocysts from consanguine couples.


Asunto(s)
Aneuploidia , Blastocisto , Fertilización In Vitro , Diagnóstico Preimplantación , Razón de Masculinidad , Inyecciones de Esperma Intracitoplasmáticas , Humanos , Femenino , Masculino , Inyecciones de Esperma Intracitoplasmáticas/métodos , Embarazo , Adulto , Transferencia de Embrión/métodos , Pruebas Genéticas , Secuenciación de Nucleótidos de Alto Rendimiento
3.
Death Stud ; 48(3): 250-266, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-37226959

RESUMEN

The COVID-19 outbreak has further highlighted the need to strengthen support networks to sustain grieving people. However, we know very little about the experience of those who, because of their emotional connection with the bereaved person or of their social function, find themselves supporting people in grief. The current study aimed to analyze the experience of grievers' informal support providers (relatives and friends, teachers, religious leaders, funeral providers, pharmacists, volunteers, and social service workers). 162 in-depth interviews were collected (meanage = 42.3, SD = 14.9; women = 63.6%). Findings highlight two different ways of talking about one's experience and two different ways of offering support. Such dissimilarities do not relate to the period in which support was offered (before or during the pandemic). The results will be discussed in order to highlight emerging training needs to support bereaved people in their difficult transition.


Asunto(s)
Aflicción , COVID-19 , Humanos , Femenino , Adulto , Pandemias , Pesar , Emociones , Familia/psicología
4.
J Oral Maxillofac Surg ; 81(4): 483-498, 2023 04.
Artículo en Inglés | MEDLINE | ID: mdl-36442532

RESUMEN

PURPOSE: Surgery of impacted lower third molars may be associated with postoperative complications. The aim of this study is to determine whether piezoelectric surgery is effective in reducing pain, swelling, and trismus compared to conventional rotary instruments during extraction of impacted lower third molars. METHODS: For this systematic review, the searches were performed independently by 2 researchers. Randomized clinical trials that used the piezoelectric instrument for the removal of impacted lower third molars in humans were included. The predictor variable was the study group (piezo surgery vs rotary instruments). The main outcome was the analysis of postoperative pain, swelling, and trismus. Data analysis included risk of bias assessment (RoB 2 Cochrane) and meta-analysis with heterogeneity based on random effects I2 and 95% confidence interval. RESULTS: In the initial results, 956 articles were revised and after applying inclusion/exclusion criteria, the final sample was composed of 18 publications, all being randomized clinical trials. The results of this meta-analysis demonstrated a significant reduction in pain scores with a Cohen's d of -0.95 [CI 95% = -1.23 to -0.67] of high clinical impact (P < .001). In the piezo group there was a significant increase in mouth opening of 4.29 [CI 95% = 2.33 to 6.25] mm (P < .001). Regarding swelling, Tragus-Ang and Go-eye, both showed a significant reduction in the piezo group (P < .001). There was a significant increase of 7.32 [CI 95% = 4.40 to 10.24] minutes in the piezo group (P < .00001), and none of the studies showed a significant risk of bias. CONCLUSIONS: Piezo proved to be effective in reducing pain, swelling, and trismus in third molar surgeries even with longer surgical time, but due to the lack of standardization in primary studies regarding swelling, new, controlled and standardized studies should be carried out with the objective of proving the effectiveness of this therapeutic modality in the reduction of postoperative swelling.


Asunto(s)
Tercer Molar , Diente Impactado , Humanos , Tercer Molar/cirugía , Trismo/prevención & control , Extracción Dental/métodos , Dolor Postoperatorio/prevención & control , Complicaciones Posoperatorias , Diente Impactado/cirugía , Edema/etiología , Edema/prevención & control
5.
Zygote ; 31(6): 588-595, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37955175

RESUMEN

Embryos of optimal development reach blastocyst stage 116 ± 2 h after insemination. Usable D7 blastocysts represent nearly 5% of embryos in IVF with acceptable pregnancy and live birth rates, however data are still limited. Therefore, this study aimed to analyze the ongoing pregnancy rate (OPR) of D7 blastocysts in single euploid frozen embryo transfer (FET) cycles. An observational study was performed including 1527 FET cycles with blastocysts biopsied on D5 (N = 855), D6 (N = 636) and D7 (N = 36). Blastocysts were classified as good (AA/AB/BA), fair (BB) or poor (AC/BC/CC/CA/CB) (Gardner scoring). FETs were performed in natural cycles (NC) or hormone replacement therapy (HRT) cycles. Patient's age differed significantly between D5, D6 and D7 blastocysts FET cycles (33.2 ± 5.6, 34.4 ± 5.3 and 35.9 ± 5.2, P < 0.001). OPRs were higher when D5 euploid blastocysts were transferred compared with D6 and D7 (56.0% vs. 45.3% and 11.1%, P < 0.001). Poor quality blastocysts were predominant in D7 blastocyst FET cycles (good quality: 35.4%, 27.2%, 5.6%; fair quality: 52.1%, 38.5%, 11.1%; poor quality: 12.5%, 34.3%, 83.3%, P < 0.001 for D5, D6 and D7 blastocysts; respectively). OPR was significantly reduced by D7 blastocyst FETs (OR = 0.23 [0.08;0.62], P = 0.004), patient's BMI (OR = 0.96 [0.94;0.98], P < 0.001), HRT cycles (OR = 0.70 [0.56;0.88], P = 0.002) and poor quality blastocysts (OR = 0.33 [0.24;0.45], P < 0.001). OPR is significantly reduced with D7 compared with D5/D6 euploid blastocysts in FET cycles. The older the patient, the more likely they are to have an FET cycle with blastocysts biopsied on D7, therefore culturing embryos until D7 can be a strategy to increase OPR outcomes in patients ≥38 years.


Asunto(s)
Implantación del Embrión , Transferencia de Embrión , Femenino , Humanos , Embarazo , Blastocisto , Resultado del Embarazo , Índice de Embarazo , Estudios Retrospectivos , Adulto
6.
J Assist Reprod Genet ; 39(11): 2529-2537, 2022 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-36190594

RESUMEN

PURPOSE: To evaluate the impact of a cesarean section (CS) on the chance of clinical pregnancy and live birth (LB) in frozen embryo transfer (FET) cycles in the setting of euploid embryos and the absence of intracavitary fluid (ICF) as causes of implantation failure were excluded. METHODS: Retrospective study, including patients with at least one previous CS or at least one previous vaginal delivery, who underwent a euploid FET cycle. RESULTS: A total of 412 euploid embryo transfer cycles had been included. Patients' mean age was 34.5 years and 42.48% of patients have had at least one previous CS. A clinical pregnancy was seen in 69.42% and 60.19% of the patients had a LB. Positive pregnancy test, clinical pregnancy, and LB rate were not significantly different between the groups without/with a history of a previous CS (p = 0.6/0.45/0.94, respectively). LB rate was significantly reduced by the presence of mucus on the ET catheter (OR: 0.413; p = 0.010), the BMI (OR: 0.946; p = 0.006), the combined embryo quality (embryo quality fair: OR: 0.444; p = 0.001; embryo quality low: OR: 0.062; p < 0.001), and by the HRT endometrial preparation approach (OR: 0.609; p = 0.023). CONCLUSION: The possible negative impact of a CS can be overcome when a euploid FET after exclusion of ICF is performed.


Asunto(s)
Cesárea , Implantación del Embrión , Humanos , Embarazo , Femenino , Adulto , Índice de Embarazo , Estudios Retrospectivos , Transferencia de Embrión , Nacimiento Vivo
7.
Psychother Res ; 32(5): 678-693, 2022 06.
Artículo en Inglés | MEDLINE | ID: mdl-34663184

RESUMEN

OBJECTIVE: Prior research, mainly conducted on depression, observed that clients' improved capability to process their emotions predicted better therapeutic outcomes. The current comparative study aimed to investigate whether emotional processing was related to therapeutic change in complicated grief. METHOD: We analyzed two contrasting cases (good or poor outcome) treated with grief constructivist therapy. In both cases we investigated the association of emotional processing (Experiencing Scale) to (1) therapeutic outcome (Inventory of Complicated Grief), and (2) change in the type of grief-related emotions (Emotions Episodes). RESULTS: The session-by-session growth of clients' emotional processing and the change of grief-related emotions were qualitatively explored throughout both cases. Compared with the poor outcome case, the good outcome case achieved more improvement in the ability to process emotions. Such improvement occurred alongside a deeper change in the type of grief-related emotions aroused, from maladaptive to more adaptive responses. CONCLUSION: Our findings suggest that a higher emotional processing capability may be associated with the transformation of grief-related maladaptive emotions and with the improvement of complicated grief condition.


Asunto(s)
Emociones , Pesar , Emociones/fisiología , Humanos , Psicoterapia
8.
Reprod Biomed Online ; 41(2): 141-150, 2020 08.
Artículo en Inglés | MEDLINE | ID: mdl-32622702

RESUMEN

Fertility societies worldwide responded to the COVID-19 pandemic by recommending that fertility clinics close, or sharply reduce, the clinical operation, leading to a shift in the management of IVF laboratories in three phases: shutdown preparation; maintenance during shutdown; and restart. Each of these phases carries distinct risks that need identification and mitigation, forcing laboratory managers to rethink and adapt their procedures in response to the pandemic. The sudden and unprecedented nature of the pandemic forced laboratory managers from around the world to base decisions on opinion and experience when evidence-based response options were unavailable. These perspectives on pandemic response were presented during a virtual international symposium on COVID-19, held on 3 April 2020, and organized by the London Laboratory Managers' Group. Laboratory managers from seven different countries at different stages of the pandemic (China, Italy, Spain, France, UK, Brazil and Australia) presented their personal experiences to a select audience of experienced laboratory managers from 19 different countries. The intention of this paper is to collect the learnings and considerations from this group of laboratory managers who collaborated to share personal experiences to contribute to the debate surrounding what constitutes good IVF laboratory practice in extraordinary circumstances, such as the COVID-19 pandemic.


Asunto(s)
Betacoronavirus , Infecciones por Coronavirus/prevención & control , Clínicas de Fertilidad/organización & administración , Fertilización In Vitro/métodos , Internacionalidad , Pandemias/prevención & control , Neumonía Viral/prevención & control , Australia/epidemiología , Brasil/epidemiología , COVID-19 , China/epidemiología , Infecciones por Coronavirus/epidemiología , Femenino , Clínicas de Fertilidad/estadística & datos numéricos , Fertilización In Vitro/estadística & datos numéricos , Francia/epidemiología , Humanos , Italia/epidemiología , Neumonía Viral/epidemiología , SARS-CoV-2 , España/epidemiología , Nivel de Atención , Reino Unido/epidemiología
9.
Acta Obstet Gynecol Scand ; 98(5): 647-652, 2019 05.
Artículo en Inglés | MEDLINE | ID: mdl-30758059

RESUMEN

The aim of this review is to provide current knowledge on fertility preservation for non-medical reasons in women willing to postpone childbearing. The topic is highly debatable, starting from disagreement about its terminology, the number of eggs necessary to predict chances of success, and the safety and socio/ethical point of view. Cost analysis and discrepancies among countries' recommendations and regulations are described to confirm the controversies and unsolved issues around this very interesting topic. Finally, an overview on the returning rate of women among "egg bankers" and reasons behind their decisions are illustrated.


Asunto(s)
Criopreservación , Preservación de la Fertilidad , Oocitos , Conducta Reproductiva , Criopreservación/economía , Criopreservación/métodos , Femenino , Preservación de la Fertilidad/ética , Preservación de la Fertilidad/métodos , Preservación de la Fertilidad/psicología , Humanos , Conducta Reproductiva/ética , Conducta Reproductiva/psicología
11.
Life (Basel) ; 13(6)2023 Jun 09.
Artículo en Inglés | MEDLINE | ID: mdl-37374137

RESUMEN

To ensure patient care in an oncological fertility preservation (FP) programme, specialists must provide technology that best suits the patients' clinical conditions. In vitro oocyte maturation (IVM) and ovarian tissue cryopreservation (OTC) are possible fertility preservation treatments for women in need of urgent oncological treatment. IVM consists of the retrieval of immature oocytes from small antral follicles, with no or minimal ovarian stimulation by gonadotropins. Therefore, IVM has become a pertinent option for fertility preservation, especially for cases whereby ovarian stimulation is unfeasible or contra-indicated. Existing data on immature oocytes, retrieved transvaginally (OPU-IVM) or extracted from ovarian tissue 'ex vivo' (OTO-IVM), are still limited on technical consistency, efficacy, and safety. The present retrospective cohort study includes 89 women undergoing fertility preservation using IVM methodologies and 26 women undergoing ovarian stimulation (OS) in concomitant period. In total, 533 immature oocytes were collected from IVM patients, achieving a maturation rate of 57% and 70% in OTO-IVM and 73% and 82% in OPU-IVM at 24 h and 48 h in culture, respectively. The observed high maturation rates might be due to the use of patients' serum in its innate status, i.e., without heat-inactivation. This permitted 7.6 ± 5.7 and 4.6 ± 4.9 oocytes to be vitrified in OTO-IVM and OPU-IVM, respectively, compared to 6.8 ± 4.6 from OS patients. Regarding OS patients, two of them underwent embryo transfer following the insemination of warmed oocytes after complete remission, resulting in a single live birth from one patient. Upon follow-up of two OTO-IVM patients after the termination of their oncological treatment, a total of 11 warmed oocytes lead to a transfer of a single embryo, but pregnancy was not achieved. From OPU-IVM, six embryos were transferred in three patients 4.25 years after oocyte vitrification, leading to the live birth of a healthy boy. The present case of live birth is among the first cases reported so far and supports the notion that IVM might be a relevant and safe FP option for cancer patients when oocyte preservation is required but ovarian stimulation is contra-indicated.

12.
Sci Rep ; 13(1): 8857, 2023 05 31.
Artículo en Inglés | MEDLINE | ID: mdl-37258645

RESUMEN

Consanguineous marriage is defined as marriage between first or second-degree cousins, with high prevalence in many cultures and societies. Descendants from consanguineous unions have an increased risk for genetic diseases. Additionally, in consanguineous couples, chromosomal disjunction during embryogenesis could also be affected, increasing the risk of chromosomal errors. Nowadays, genomic testing allows to identify new genetic syndromes and variants related to copy-number variations (CNV), including whole chromosome, segmental and micro-segmental errors. This is the first study evaluating chromosomal ploidy status on blastocysts formed from consanguineous couples during IVF/ICSI treatments with Preimplantation Genetic Testing for Aneuploidies (PGT-A), compared to non-consanguineous couples. Although consanguine couples were significantly younger, no differences were observed between groups for fertilisation rate, blastulation rate and euploidy rate, once adjusted by age. Nevertheless, the number of blastocysts biopsied on day 5 was lower for consanguine couples. Segmental errors, and aneuploidies of chromosomes 13 and 14 were the most prominent abnormalities in relation to consanguinity, together with errors in chromosome 16 and sex chromosomes when the female partner was younger than 35. Once euploid blastocysts were considered for subsequent frozen embryo transfer, pregnancy outcomes were similar in both groups. The current findings point toward the fact that in consanguine unions, not only the risk of having a child with genetic disorders is increased, but also the risk of specific chromosomal abnormalities seems to be increased. Premarital counselling and tailored reproductive treatments should be offered to these couples.


Asunto(s)
Diagnóstico Preimplantación , Femenino , Humanos , Embarazo , Aneuploidia , Blastocisto , Consanguinidad , Fertilización In Vitro , Pruebas Genéticas , Resultado del Embarazo , Estudios Retrospectivos , Inyecciones de Esperma Intracitoplasmáticas
13.
Reprod Sci ; 30(11): 3296-3304, 2023 11.
Artículo en Inglés | MEDLINE | ID: mdl-37253937

RESUMEN

Human embryos cultured in vitro can contain two or more cytogenetically distinct cell lineages known as "chromosomal mosaicism". Since mosaicism is produced by mitotic errors after fertilization occurs, culture conditions might contribute to mosaicism origins. Many studies demonstrated that euploidy rates are not affected by culture media; however, whether oocytes cultured under continuous culture media (CCM) or sequential culture media (SCM) has a higher risk of mosaicism occurring remains unsolved. Therefore, this study aims to determine whether mosaicism rates differ when sibling oocytes are cultured in CCM or SCM. A single center observational study was performed including 6072 sibling oocytes. Mature oocytes (MII) were inseminated and cultured in CCM (n = 3,194) or SCM (n = 2,359) until blastocyst stage for trophectoderm (TE) biopsy on day (D) 5, D6, or D7 for preimplantation genetic testing analysis with a semi-automated next-generation sequencing. Mosaicism was classified as low (30-50%) or high (50-80%) based on the percentage of abnormal cells constitution detected in TE samples. As a result, 426 women with a mean age of 34.7 ± 6.4 years were included in the study. Fertilization rates were comparable between CCM and SCM (74.0% vs 72.0%, p = 0.091). Although total blastulation rate and usable blastocyst rate (biopsied blastocysts) were significantly higher in CCM than SCM (75.3 % vs. 70.3%, p < 0.001 and 58.0% vs. 54.5%, p = 0.026), euploidy rates did not differ significantly (45.2% vs. 45.7%, p = 0.810, respectively). Mosaicism rate was not significantly different for blastocysts cultured in CCM or SCM (4.7% vs. 5.1%, p = 0.650), neither the proportion of low or high mosaic rates (3.7% vs. 4.4%, p = 0.353 and 1.0% vs. 0.7%, p = 0.355, respectively). Hence, it was concluded that CCM or SCM does not have an impact on mosaicism rate of embryos cultured until the blastocyst stage.


Asunto(s)
Mosaicismo , Diagnóstico Preimplantación , Embarazo , Femenino , Humanos , Adulto , Aneuploidia , Blastocisto , Oocitos , Medios de Cultivo
14.
Eur J Nucl Med Mol Imaging ; 39(1): 129-37, 2012 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-21909754

RESUMEN

PURPOSE: PET/CT using (18)F-FDG is a well-established diagnostic examination in oncology, cardiology and neurology. The clinical significance of nontumoral testicular uptake of FDG is unknown. Functional testicular imaging may have important clinical applications in the diagnosis and prognosis of male infertility. The aim of this study was to determine the andrological value of a FDG PET/CT in analysing testicular function, by correlating the PET/CT data with the sperm parameters. METHODS: Retrospective analysis of FDG PET/CT in 20 consecutive cancer patients without testicular pathology in whom two semen samples had been obtained for analysis before any chemotherapy. FDG PET/CT parameters were the mean standardized uptake value (SUVmean), used for measuring the intensity of uptake, and the functional testicular volume (FV). For statistical analysis, a Spearman's rank correlation test and a Mann-Whitney test were used. RESULTS: Of 20 patients (mean age 22 years), 18 had provided two sperm samples for cryopreservation. Sperm concentration was above 20 × 10(6)/ml in 55% of the patients. The intensity of uptake and the FV were correlated with the total sperm count, the sperm concentration and motility (p < 0.05). The difference in SUVmean between the two testes showed an inverse correlation with sperm concentration (p = 0.036). Normospermic and oligospermic men had significant differences in: (1) mean SUVmean, (2) mean FV, and (3) the difference in intensity of uptake between the testes (p < 0.05). CONCLUSION: This is the first report on the andrological value of FDG PET/CT in analysing nontumoral testicular function. This pilot study showed a significant correlation between intensity of uptake of FDG and testicular FV with the main sperm parameters. PET/CT with FDG could become a useful new tool in assisted reproductive technologies and other andrological or urological applications.


Asunto(s)
Fluorodesoxiglucosa F18 , Imagen Multimodal , Tomografía de Emisión de Positrones , Testículo/diagnóstico por imagen , Tomografía Computarizada por Rayos X , Adolescente , Adulto , Andrología , Transporte Biológico , Fluorodesoxiglucosa F18/metabolismo , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Recuento de Espermatozoides , Motilidad Espermática , Espermatozoides/diagnóstico por imagen , Espermatozoides/metabolismo , Espermatozoides/fisiología , Neoplasias Testiculares/diagnóstico por imagen , Neoplasias Testiculares/metabolismo , Neoplasias Testiculares/fisiopatología , Testículo/metabolismo , Testículo/fisiopatología , Adulto Joven
15.
Hum Reprod Open ; 2020(3): hoaa027, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32695887

RESUMEN

STUDY QUESTION: To evaluate the implementation of the coding systems in medically assisted reproduction (MAR) centres in the European Union (EU). SUMMARY ANSWER: Our data show that a significant number of MAR centres use the Single European Code (SEC), but it also shows certain limitations to the coding. WHAT IS KNOWN ALREADY: Traceability and identification of tissue and cells used for clinical application are extremely important as it is one of the key aspects of quality and safety both for the donors and the recipients. Patients as well as tissues and cells move across the European continent and far beyond, hence a uniform coding system was very much needed. The coding of tissues and cells from human origin was already embedded in the EU directives 2004/23/EC. The use of the Single European Code (SEC) on tissues and cells was enforced in 2017 for tissues and cells distributed within the EU or exported from the EU. The SEC ensures standardization within the EU, allowing the integration of the two existing codes (ISBT-128 and Eurocode) within the SEC structure. Likewise, in the MAR field, the SEC was launched in order to ensure the traceability of reproductive tissues and cells. Gametes and embryos from partner donation as well as reproductive cells and tissues of allogeneic donation were excluded from the SEC as long as they remain in the centre of origin. STUDY DESIGN SIZE DURATION: A cross-sectional survey aimed to gain insight into the use of SEC by MAR centres was conducted between 5 November and 15 December 2018. PARTICIPANTS/MATERIALS SETTING METHODS: The online survey was distributed among the ESHRE members. MAIN RESULTS AND THE ROLE OF CHANCE: The survey results highlight the strengths and weaknesses in the practical use of the SEC. The data from the survey showed that the SEC code is something that is known in the MAR field. Our data showed that over half of the respondents were using the SEC in their centre. On the other hand, there is also criticism about the use of SEC in MAR, especially that the added value for traceability and identification in ART is found to be rather limited. LIMITATIONS REASONS FOR CAUTION: The survey response rate was rather low (4.84%). The view of the use of SEC discussed in this paper still provides insight into the use of the SEC in several MAR centres. WIDER IMPLICATIONS OF THE FINDINGS: The survey highlights some knowledge gaps concerning coding. This information can be used to develop tools to increase knowledge of the SEC. STUDY FUNDING/COMPETING INTERESTS: There was no external funding for this study. The authors declare that they have no conflict of interest. TRIAL REGISTRATION NUMBER: N/A.

16.
Cad Saude Publica ; 36(2): e00011919, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32022172

RESUMEN

Women presenting with advanced breast cancer tumors are common in Brazil. Little is known about factors contributing to the delay in seeking care. The aim of this study was to identify factors associated with longer time intervals between the onset of breast cancer symptoms and the first medical visit in the Federal District, Brazil. The analysis included 444 symptomatic women with incident breast cancer, interviewed between September, 2012 and September, 2014, during their admission for breast cancer treatment in nine public hospitals in the Federal District. Patients with metastatic disease at diagnosis were not included in this study. The outcome was time interval between symptom onset and the first medical visit, whether > 90 (34% of patients) or ≤ 90 days. Logistic regression was used to estimate odds ratios (OR) and 95% confidence intervals (95%CI). In the multivariate analysis, the > 90 day interval was significantly associated with patients not performing mammography and/or breast ultrasound in the two years prior to breast cancer diagnosis (OR = 1.97; 95%CI: 1.26-3.08), and with more advanced stages (OR = 1.72; 95%CI: 1.10-2.72). Furthermore, there was a lower chance of delay in patients with higher levels of education (OR = 0.95; 95%CI: 0.91-0.99). A relatively high proportion of breast cancer patients in the Brazilian Federal District experienced delay to attend the first medical consultation after the symptoms onset. Increasing breast cancer awareness, especially among women with low educational levels and those not participating in mammography screening programs could contribute to reduce this delay.


Asunto(s)
Neoplasias de la Mama/diagnóstico , Mamografía , Tiempo de Tratamiento , Brasil , Detección Precoz del Cáncer , Escolaridad , Femenino , Hospitales Públicos , Humanos
17.
Hum Reprod Open ; 2020(4): hoaa052, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-33225079

RESUMEN

STUDY QUESTION: What is the recommended management for women and transgender men with regards to fertility preservation (FP), based on the best available evidence in the literature? SUMMARY ANSWER: The ESHRE Guideline on Female Fertility Preservation makes 78 recommendations on organization of care, information provision and support, pre-FP assessment, FP interventions and after treatment care. Ongoing developments in FP are also discussed. WHAT IS KNOWN ALREADY: The field of FP has grown hugely in the last two decades, driven by the increasing recognition of the importance of potential loss of fertility as a significant effect of the treatment of cancer and other serious diseases, and the development of the enabling technologies of oocyte vitrification and ovarian tissue cryopreservation (OTC) for subsequent autografting. This has led to the widespread, though uneven, provision of FP for young women. STUDY DESIGN SIZE DURATION: The guideline was developed according to the structured methodology for development of ESHRE guidelines. After formulation of key questions by a group of experts, literature searches and assessments were performed. Papers published up to 1 November 2019 and written in English were included in the review. PARTICIPANTS/MATERIALS SETTING METHODS: Based on the collected evidence, recommendations were formulated and discussed until consensus was reached within the guideline group. A stakeholder review was organized after finalization of the draft. The final version was approved by the guideline group and the ESHRE Executive Committee. MAIN RESULTS AND THE ROLE OF CHANCE: This guideline aims to help providers meet a growing demand for FP options by diverse groups of patients, including those diagnosed with cancer undergoing gonadotoxic treatments, with benign diseases undergoing gonadotoxic treatments or those with a genetic condition predisposing to premature ovarian insufficiency, transgender men (assigned female at birth), and women requesting oocyte cryopreservation for age-related fertility loss.The guideline makes 78 recommendations on information provision and support, pre-FP assessment, FP interventions and after treatment care, including 50 evidence-based recommendations-of which 31 were formulated as strong recommendations and 19 as weak-25 good practice points and 3 research only recommendations. Of the evidence-based recommendations, 1 was supported by high-quality evidence, 3 by moderate-quality evidence, 17 by low-quality evidence and 29 by very low-quality evidence. To support future research in the field of female FP, a list of research recommendations is provided. LIMITATIONS REASONS FOR CAUTION: Most interventions included are not well studied in FP patients. As some interventions, e.g. oocyte and embryo cryopreservation, are well established for treatment of infertility, technical aspects, feasibility and outcomes can be extrapolated. For other interventions, such as OTC and IVM, more evidence is required, specifically pregnancy outcomes after applying these techniques for FP patients. Such future studies may require the current recommendations to be revised. WIDER IMPLICATIONS OF THE FINDINGS: The guideline provides clinicians with clear advice on best practice in female FP, based on the best evidence currently available. In addition, a list of research recommendations is provided to stimulate further studies in FP. STUDY FUNDING/COMPETING INTERESTS: The guideline was developed and funded by ESHRE, covering expenses associated with the guideline meetings, with the literature searches and with the dissemination of the guideline. The guideline group members did not receive payment. R.A.A. reports personal fees and non-financial support from Roche Diagnostics, personal fees from Ferring Pharmaceuticals, IBSA and Merck Serono, outside the submitted work; D.B. reports grants from Merck Serono and Goodlife, outside the submitted work; I.D. reports consulting fees from Roche and speaker's fees from Novartis; M.L. reports personal fees from Roche, Novartis, Pfizer, Lilly, Takeda, and Theramex, outside the submitted work. The other authors have no conflicts of interest to declare. DISCLAIMER: This guideline represents the views of ESHRE, which were achieved after careful consideration of the scientific evidence available at the time of preparation. In the absence of scientific evidence on certain aspects, a consensus between the relevant ESHRE stakeholders has been obtained. Adherence to these clinical practice guidelines does not guarantee a successful or specific outcome, nor does it establish a standard of care. Clinical practice guidelines do not replace the need for application of clinical judgment to each individual presentation, nor variations based on locality and facility type. ESHRE makes no warranty, express or implied, regarding the clinical practice guidelines and specifically excludes any warranties of merchantability and fitness for a particular use or purpose. (Full disclaimer available at  www.eshre.eu/guidelines.) †ESHRE Pages content is not externally peer reviewed. The manuscript has been approved by the Executive Committee of ESHRE.

19.
Mol Reprod Dev ; 75(6): 1021-30, 2008 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-18163445

RESUMEN

The present study aimed to analyze detailed morphological and functional characteristics of mouse in vitro matured oocytes after a pre-maturation culture (PMC) by temporary nuclear arrest with the specific phosphodiesterase 3-inhibitor (PDE3-I) Cilostamide. In a first experiment the lowest effective dose of Cilostamide was determined. Cumulus-oocyte complexes (COCs), isolated from small antral follicles, were exposed to different concentrations of Cilostamide (ranging from 0 (control) to 10 microM) for 24 hr. Afterwards, oocytes were removed from PDE3-I-containing medium and underwent in vitro maturation (IVM) for 16-18 hr. A concentration of 1 microM Cilostamide was the lowest effective dose for maximum level of inhibition and reversibility of meiosis inhibition. This concentration was used in further experiments to evaluate oocyte quality following IVM in relation to different parameters: kinetics of meiotic progression, metaphase II (MII) spindle morphology, aneuploidy rate, fertilization, and embryonic developmental rates. The results were compared to nonarrested (in vitro control) and in vivo matured oocytes (in vivo control). Following withdrawal of the inhibitor, the progression of meiosis was more synchronous and accelerated in arrested when compared to nonarrested oocytes. A PMC resulted in a significant increase in the number of oocytes constituting a MII spindle of normal morphology. None of the oocytes exposed to PDE3-I showed numerical chromosome alterations. In addition, fertilization and embryonic developmental rates were higher in the PMC group compared to in vitro controls, but lower than in vivo controls. These results provide evidence that induced nuclear arrest by PDE3-I is a safe and reliable method to improve oocyte quality after IVM.


Asunto(s)
Oocitos/efectos de los fármacos , Inhibidores de Fosfodiesterasa/farmacología , Quinolonas/farmacología , Aneuploidia , Animales , Núcleo Celular/efectos de los fármacos , Desarrollo Embrionario/efectos de los fármacos , Femenino , Fertilización In Vitro , Técnicas In Vitro , Cinética , Meiosis/efectos de los fármacos , Ratones , Ratones Endogámicos C57BL , Ratones Endogámicos DBA , Oocitos/citología , Oocitos/crecimiento & desarrollo , Oogénesis/efectos de los fármacos , Inhibidores de Fosfodiesterasa 3 , Inhibidores de Fosfodiesterasa/administración & dosificación , Quinolonas/administración & dosificación
20.
Arq. odontol ; 57: 46-56, jan.-dez. 2021. ilus, tab
Artículo en Portugués | LILACS, BBO - odontología (Brasil) | ID: biblio-1223620

RESUMEN

Objetivo: Avaliar a prevalência de erros radiográficos em radiografias periapicais de uma clínica de Odontopediatria em uma instituição de ensino superior de Teresina-Piauí. Métodos: Tratou-se de estudo transversal retrospectivo. Foram coletados dados sociodemográficos e radiográficos (localização e presença de erros de técnica radiográfica, processamento e armazenamento). As radiografias foram analisadas por um único examinador calibrado (kappa > 0,80). Foi realizada análise descritiva dos dados, teste Qui-Quadrado, razão de prevalência não-ajustadas (RPnãoajust) e intervalos de confiança (IC 95%). Considerou-se significativo valor de p < 0,05. Resultados: Das 208 radiografias analisadas, 187 (89,9%) possuíam algum tipo de erro. O erro mais prevalente foi de técnica radiográfica (n = 115; 55,3%). Entre esses, a radiografia tremida foi o mais frequente (n = 57; 28,4%). O erro de processamento mais frequente foi presença de digitais (n = 37; 17,8%). Todos os erros de armazenamento (n = 89; 100%) estavam relacionados a não identificação do paciente. O erro de técnica esteve associado com os pacientes de idade menor que 5 anos (RPnãoajus = 1,2 IC95% 1,1-1,3) comparando com idade entre 6 e 10 anos. Não houve associação entre tipo de erro radiográfico e a dentição avaliada nas radiografias (p > 0,05). Conclusão: A quantidade de erros detectados neste estudo foi alta e o mais frequente foi quanto à técnica radiográfica mal executada. Todos os erros de armazenamento observados foram devido a não identificação do paciente. Há uma maior frequência de erros de técnica radiográfica em pacientes com menos de 5 anos se comparados aos de 6 a 10 anos.


Aim: To evaluate the prevalence of radiographic errors in periapical radiographs of a pediatric dentistry clinic in a higher education institution in Teresina, Piauí, Brazil. Methods: This work is a retrospective cross-sectional study. Sociodemographic and radiographic data (location and presence of radiographic technique errors, processing, and storage) were collected. The radiographs were analyzed by a single calibrated examiner (kappa > 0.80). Descriptive analysis of the data, chi-square test, unadjusted prevalence ratio (PRnon-adjusted), and confidence intervals (95% CI) were performed. A p-value < 0.05 was considered significant. Results: Of the 208 radiographs analyzed in this study, 187 (89.9%) presented some type of error. The most prevalent error was the radiographic technique (n = 115; 55.3%). Among these, shaky radiography was the most frequent (n = 57; 28.4%). The most frequent processing error was the presence of fingerprints (n = 37; 17.8%). All storage errors (n = 89; 100%) were related to failure to identify the patient. The technical error was associated with patients younger than 5 years of age (PRnon-adjusted = 1.2; 95% CI 1.1-1.3) compared with 6 to 10 years of age. No association was observed between the type of radiographic error and the dentition assessed on the radiographs (p > 0.05). Conclusion: The number of errors detected in this study was high and the most frequent concerned the poorly performed radiographic technique. All storage errors observed in this study were due to the failure to identify the patients. Children under 5 years of age proved to be more prone to technical radiographic errors than those of 6 to 10 years of age.


Asunto(s)
Niño , Control de Calidad , Rayos X , Radiografía Dental , Niño , Evaluación de Resultado en la Atención de Salud , Odontología Pediátrica , Atención Dental para Niños , Estudios Transversales
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