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1.
Hum Reprod ; 37(12): 2787-2796, 2022 11 24.
Artigo em Inglês | MEDLINE | ID: mdl-36272106

RESUMO

STUDY QUESTION: What are the pregnancy and live birth rates for ovarian tissue transplantation and which factors are associated with the success rate? SUMMARY ANSWER: Pregnancy and live birth rates per transplanted woman are 32.7% and 26.5% and success rate is associated with female age and first versus repeated transplantation. WHAT IS KNOWN ALREADY: Live birth rates after ovarian tissue transplantations have been reported to be between around 24% and 41% per patient. Success rates seem to be negatively associated with increasing female age at the time of tissue cryopreservation and with pelvic radiation. Success rates are apparently not reduced after overnight transportation of ovarian tissue before freezing. STUDY DESIGN, SIZE, DURATION: Registry analysis of 244 transplantations in 196 women, performed by 26 FertiPROTEKT network centres from 2007 to 2019 with follow-up till December 2020. PARTICIPANTS/MATERIALS, SETTING, METHODS: Orthotopic ovarian tissue transplantations were performed in 196 women, 191 with previous malignant and 5 with previous non-malignant diseases. Size of transplanting centres varied between 1 and 100 transplantations per centre (median: 2). Factors possibly associated with success rate such as female age, first and repeated transplantation, experience of the transplanting centre and overnight transportation of the ovarian tissue before freezing were analysed. MAIN RESULTS AND THE ROLE OF CHANCE: Average age of all 196 transplanted women was 31.3 years (SD 5.2; range 17-44) at the time of cryopreservation of tissue and 35.9 years (SD 4.8; range 23-47) at the time of transplantation. Pregnancy rate was 30.6% (95% CI, 24.2-37.6%) per first transplantation and 32.7% (95% CI, 26.1-39.7%) per patient. Pregnancy rate was higher after first transplantation (30.6% (95% CI, 24.2-37.6%)) compared to second and subsequent transplantations (11.8% (95% CI, 3.3-27.5%)). Live birth rate per first transplantation was 25.0% (95% CI, 19.1-31.7%) and per patient 26.5% (95% CI, 20.5-33.3%). Success rate decreased with increasing age at the time of ovarian tissue freezing. Live birth rate was 28.2% (95% CI, 20.9-36.3%) in women <35 years and 16.7% (95% CI, 7.9-29.3%) in women >35 years. Pregnancy rates after first transplantation were higher in centres who had performed ≥10 transplantations (35.1%) compared to centres with <10 transplantation (25.4%) (P = 0.12). Corresponding live birth rates were 27.0% and 18.6%. Success rates were not different in women with and without overnight transportation of tissue before cryopreservation. LIMITATIONS, REASONS FOR CAUTION: The data were drawn from a registry analysis. Data such as ovarian reserve and premature ovarian insufficiency were not available for all women. Data might be influenced by different follow-up policies of the centres. WIDER IMPLICATIONS OF THE FINDINGS: The study reveals the high potential of ovarian tissue freezing and transplantation, but only if freezing is performed in younger women. The study suggests focus should be placed on the first and not on repeated transplantations. It also opens the discussion of whether transplantation should rather be performed by experienced centres. STUDY FUNDING/COMPETING INTEREST(S): No funding. No competing interests. TRIAL REGISTRATION NUMBER: N/A.


Assuntos
Criopreservação , Preservação da Fertilidade , Gravidez , Feminino , Humanos , Adulto , Estudos Retrospectivos , Criopreservação/métodos , Ovário/transplante , Taxa de Gravidez , Preservação da Fertilidade/métodos , Coeficiente de Natalidade , Nascido Vivo , Fertilização in vitro/métodos
2.
Ann Oncol ; 29(1): 186-192, 2018 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-29045642

RESUMO

Background: Patients' compliance and persistence with endocrine treatment has a significant effect on the prognosis in early breast cancer (EBC). The purpose of this analysis was to identify possible reasons for non-persistence, defined as premature cessation of therapy, on the basis of patient and tumor characteristics in individuals receiving adjuvant treatment with letrozole. Patients and methods: The EvAluate-TM study is a prospective, multicenter, noninterventional study in which treatment with the aromatase inhibitor letrozole was evaluated in postmenopausal women with hormone receptor-positive EBC in the early therapy phase. Treatment persistence was evaluated at two pre-specified study visits after 6 and 12 months. As a measure of early therapy persistence the time from the start to the end of treatment (TTEOT) was analyzed. Cox regression analyses were carried out to identify patient characteristics and tumor characteristics predicting TTEOT. Results: Out of the total population of 3941 patients with EBC, 540 (13.7%) events involving treatment cessation unrelated to disease progression were observed. This was due to drug-related toxicity in the majority of cases (73.5%). Persistence rates were 92.2%, 86.9%, and 86.3% after 6, 12, and 15 months, respectively. The main factors influencing premature treatment discontinuation were older age [hazard ratio (HR) 1.02/year], comorbidities (HR 1.06 per comorbidity), low body mass index, and lower tumor grade (HR 0.85 per grade unit). Conclusion: These results support the view that older, multimorbid patients with low tumor grade and low body mass index are at the greatest risk for treatment discontinuation and might benefit from compliance and support programs.


Assuntos
Neoplasias da Mama/tratamento farmacológico , Letrozol/administração & dosagem , Adesão à Medicação , Idoso , Antineoplásicos/administração & dosagem , Inibidores da Aromatase/administração & dosagem , Neoplasias da Mama/patologia , Neoplasias da Mama/psicologia , Quimioterapia Adjuvante , Feminino , Humanos , Pessoa de Meia-Idade , Pós-Menopausa , Estudos Prospectivos
3.
Pathologe ; 39(Suppl 2): 236-240, 2018 Dec.
Artigo em Alemão | MEDLINE | ID: mdl-30406831

RESUMO

BACKGROUND: The interaction of our immune system with breast cancer (BC) cells prompted the investigation of tumor-infiltrating lymphocytes (TILs) and targeted, tumor antigen-specific immunotherapy. OBJECTIVES: Correlation between TILs and pathological complete response (pCR) after neoadjuvant systemic therapy (NACT). Tumor-specific antigens (TSAs) in HER2+ and triple negative BC and establishment of TSA-specific therapies within the interdisciplinary TILGen study. METHODS: Illustration of the TILGen study design. Assessment of TILs and correlation with pCR within this BC study. RESULTS: pCR was achieved in 38.4% (56/146) and associated with estrogen receptor/progesterone receptor negative (ER-/PR-) and HER2+ tumors. Lymphocytic predominant BC (LPBC) was found in 16.4% (24/146), particularly in ER-/PR- (ER-: 27.3% vs. ER+: 9.9%, PR-: 22.3% vs. PR+: 8.2%), large, and poorly differentiated BC. TILs were significantly correlated with pCR in multivariate analysis. In LPBC, pCR was achieved in 66.7%, whereas it was 32.8% in non-LPBC. CONCLUSIONS: First results confirm the influence of the human immune system on the response to NACT in HER2+ and triple negative BC. TSA-specific immunotherapy might improve the outcome in BC patients but there is an urgent need for comprehensive studies to further investigate this issue.


Assuntos
Neoplasias da Mama , Biomarcadores Tumorais , Humanos , Linfócitos , Linfócitos do Interstício Tumoral , Terapia Neoadjuvante , Prognóstico , Receptor ErbB-2 , Receptores de Estrogênio , Neoplasias de Mama Triplo Negativas
4.
Acta Psychiatr Scand ; 136(1): 96-107, 2017 07.
Artigo em Inglês | MEDLINE | ID: mdl-28383757

RESUMO

OBJECTIVE: Alcohol dependence is more prevalent in men than in women. The evidence for how prenatal and adult androgens influence alcohol dependence is limited. We investigated the effects of prenatal and adult androgen activity on alcohol dependence. Moreover, we studied how the behaviours of pregnant women affect their children's prenatal androgen load. METHOD: We quantified prenatal androgen markers (e.g., second-to-fourth finger length ratio [2D : 4D]) and blood androgens in 200 early-abstinent alcohol-dependent in-patients and 240 controls (2013-2015, including a 12-month follow-up). We also surveyed 134 women during pregnancy (2005-2007) and measured the 2D : 4D of their children (2013-2016). RESULTS: The prenatal androgen loads were higher in the male alcohol-dependent patients compared to the controls (lower 2D : 4D, P = 0.004) and correlated positively with the patients' liver transaminase activities (P < 0.001) and alcohol withdrawal severity (P = 0.019). Higher prenatal androgen loads and increasing androgen levels during withdrawal predicted earlier and more frequent 12-month hospital readmission in alcohol-dependent patients (P < 0.005). Moreover, stress levels (P = 0.002), alcohol (P = 0.010) and tobacco consumption (P = 0.017), and lifetime stressors (P = 0.019) of women during pregnancy related positively to their children's prenatal androgen loads (lower 2D : 4D). CONCLUSION: Androgen activities in alcohol-dependent patients and behaviours of pregnant women represent novel preventive and therapeutic targets of alcohol dependence.


Assuntos
Alcoolismo/sangue , Alcoolismo/fisiopatologia , Androgênios/metabolismo , Efeitos Tardios da Exposição Pré-Natal/metabolismo , Efeitos Tardios da Exposição Pré-Natal/fisiopatologia , Síndrome de Abstinência a Substâncias/sangue , Síndrome de Abstinência a Substâncias/fisiopatologia , Adulto , Consumo de Bebidas Alcoólicas/epidemiologia , Alcoolismo/epidemiologia , Alcoolismo/metabolismo , Estudos Transversais , Dinamarca/epidemiologia , Di-Hidrotestosterona/sangue , Feminino , Dedos/anatomia & histologia , Humanos , Estudos Longitudinais , Masculino , Gravidez , Efeitos Tardios da Exposição Pré-Natal/epidemiologia , Fatores Sexuais , Fumar/epidemiologia , Estresse Psicológico/epidemiologia , Testosterona/sangue
5.
Strahlenther Onkol ; 192(9): 617-23, 2016 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-27381751

RESUMO

AIM: Following mastectomy and adjuvant external beam radiation therapy in patients with breast cancer, the incidence of local or locoregional recurrence is approximately 9 % (2-20 %). Alongside the often limited possibilities of surgical treatment, radiation therapy combined with superficial hyperthermia is the most effective local therapy. In the present work, a retrospective analysis of salvage brachytherapy combined with superficial hyperthermia for chest wall recurrences is presented. PATIENTS AND METHODS: Between 2004 and 2011, 18 patients with a total of 23 target volumes resulting from chest wall recurrences after previously mastectomy and external beam radiation therapy (median 56 Gy, range 50-68 Gy) were treated with superficial brachytherapy as salvage treatment: 8 patients (44 %) had macroscopic tumor, 3 (17 %) had microscopic tumor (R1), and 7 (39 %) had undergone R0 resection and were treated due to risk factors. A dose of 50 Gy was given (high-dose rate [HDR] and pulsed-dose rate [PDR] procedures). In all, 5 of 23 patients (22 %) received additional concurrent chemotherapy, and in 20 of 23 (87 %) target volumes additional superficial hyperthermia was carried out twice weekly. RESULTS: The 5­year local recurrence-free survival was 56 %, the disease-free survival was 28 %, and a 5-year overall survival was 22 %. Late side effects Common Toxicity Criteria (CTC) grade 3 were reported in 17 % of the patients: 2 of 18 (11 %) had CTC grade 3 fibrosis, and 1 of 18 (6 %) had a chronic wound healing disorder. CONCLUSION: Re-irradiation as salvage brachytherapy with superficial hyperthermia for chest wall recurrences is a feasible and safe treatment with good local control results and acceptable late side effects.


Assuntos
Braquiterapia/métodos , Neoplasias da Mama/terapia , Hipertermia Induzida/métodos , Recidiva Local de Neoplasia/terapia , Lesões por Radiação/prevenção & controle , Neoplasias Torácicas/terapia , Adulto , Idoso , Idoso de 80 Anos ou mais , Braquiterapia/efeitos adversos , Neoplasias da Mama/diagnóstico , Terapia Combinada/efeitos adversos , Terapia Combinada/métodos , Intervalo Livre de Doença , Feminino , Humanos , Mastectomia , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/diagnóstico , Lesões por Radiação/etiologia , Dosagem Radioterapêutica , Radioterapia Conformacional/efeitos adversos , Reirradiação , Estudos Retrospectivos , Terapia de Salvação , Taxa de Sobrevida , Neoplasias Torácicas/diagnóstico , Parede Torácica , Resultado do Tratamento
6.
Ultrasound Obstet Gynecol ; 47(6): 674-9, 2016 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-26094600

RESUMO

OBJECTIVE: To determine whether the amniotic fluid index (AFI) or the single deepest vertical pocket (SDP) technique for estimating amniotic fluid volume is superior for predicting adverse pregnancy outcome. METHODS: This was a multicenter randomized controlled trial including 1052 pregnant women with a term singleton pregnancy across four hospitals in Germany. Women were assigned randomly, according to a computer-generated allocation sequence, to AFI or SDP measurement for estimation of amniotic fluid volume. Oligohydramnios was defined as AFI ≤ 5 cm or the absence of a pocket measuring at least 2 × 1 cm. The diagnosis of oligohydramnios was followed by labor induction. The primary outcome measure was postpartum admission to a neonatal intensive care unit. Further outcome parameters were the rates of diagnosis of oligohydramnios and induction of labor (for oligohydramnios or without specific indication), and mode of delivery. RESULTS: Postpartum admission to a neonatal intensive care unit was similar between groups (4.2% (n = 21) vs 5.0% (n = 25); relative risk (RR), 0.85 (95% CI, 0.48-1.50); P = 0.57). In the AFI group, there were more cases of oligohydramnios (9.8% (n = 49) vs 2.2% (n = 11); RR, 4.51 (95% CI, 2.2-8.57); P < 0.01) and more cases of labor induction for oligohydramnios (12.7% (n = 33) vs 3.6% (n = 10); RR, 3.50 (95% CI, 1.76-6.96); P < 0.01) than in the SDP group. Moreover, an abnormal cardiotocography was seen more often in the AFI group than in the SDP group (32.3% (n = 161) vs 26.2% (n = 132); RR, 1.23 (95% CI, 1.02-1.50); P = 0.03). The other outcome measures were not significantly different between the two groups. CONCLUSIONS: Use of the AFI method increased the rate of diagnosis of oligohydramnios and labor induction for oligohydramnios without improving perinatal outcome. The SDP method is therefore the favorable method to estimate amniotic fluid volume, especially in a population with many low-risk pregnancies. Copyright © 2015 ISUOG. Published by John Wiley & Sons Ltd.


Assuntos
Líquido Amniótico/diagnóstico por imagem , Trabalho de Parto Induzido/estatística & dados numéricos , Oligo-Hidrâmnio/diagnóstico por imagem , Ultrassonografia Pré-Natal/métodos , Feminino , Humanos , Terapia Intensiva Neonatal , Oligo-Hidrâmnio/epidemiologia , Admissão do Paciente/estatística & dados numéricos , Valor Preditivo dos Testes , Gravidez , Resultado da Gravidez
7.
Arch Gynecol Obstet ; 294(3): 487-93, 2016 09.
Artigo em Inglês | MEDLINE | ID: mdl-26742730

RESUMO

INTRODUCTION: To evaluate the influence of the time interval between examination and delivery on the accuracy of sonographic fetal weight estimation (WE). MATERIALS AND METHODS: 8723 singleton pregnancies were included in this retrospective cohort study. Fetuses were divided into eight groups with regard to the time interval between estimation and delivery (group 1: 0 days; group 2: 1-3 days; group 3: 4-7 days; group 4: 8-14 days; group 5: 15-21 days; group 6: 22-28 days; group 7: 29-35 days; group 8: 36-42 days). The accuracy of WE was compared between the different time interval groups and five commonly used formulas using means of percentage errors (MPE), medians of absolute percentage errors, and proportions of estimates within 10 % of actual birth weight. RESULTS: In group one, the Hadlock I and Warsof formula showed a systematic underestimation of fetal weight (negative MPEs). No systematic error was found with the Hadlock II formula and the equations of Merz and Shepard showed a systematic overestimation (positive MPEs). MPE values of the Hadlock I, II and Warsof formulas were closest to zero in WEs of group two. From group three to six, MPE values decreased continuously. With the Merz and Shepard equations MPEs were closest to zero in group four. DISCUSSION: The best accuracy of sonographic WE with most of the commonly used equations is achieved within a scan-to-delivery interval of 1 week.


Assuntos
Peso ao Nascer , Peso Fetal , Ultrassonografia Pré-Natal , Adulto , Estudos Transversais , Feminino , Humanos , Gravidez , Estudos Retrospectivos
8.
Br J Cancer ; 113(5): 817-26, 2015 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-26151456

RESUMO

BACKGROUND: Observational studies have reported a modest association between obesity and risk of ovarian cancer; however, whether it is also associated with survival and whether this association varies for the different histologic subtypes are not clear. We undertook an international collaborative analysis to assess the association between body mass index (BMI), assessed shortly before diagnosis, progression-free survival (PFS), ovarian cancer-specific survival and overall survival (OS) among women with invasive ovarian cancer. METHODS: We used original data from 21 studies, which included 12 390 women with ovarian carcinoma. We combined study-specific adjusted hazard ratios (HRs) using random-effects models to estimate pooled HRs (pHR). We further explored associations by histologic subtype. RESULTS: Overall, 6715 (54%) deaths occurred during follow-up. A significant OS disadvantage was observed for women who were obese (BMI: 30-34.9, pHR: 1.10 (95% confidence intervals (CIs): 0.99-1.23); BMI: ⩾35, pHR: 1.12 (95% CI: 1.01-1.25)). Results were similar for PFS and ovarian cancer-specific survival. In analyses stratified by histologic subtype, associations were strongest for women with low-grade serous (pHR: 1.12 per 5 kg m(-2)) and endometrioid subtypes (pHR: 1.08 per 5 kg m(-2)), and more modest for the high-grade serous (pHR: 1.04 per 5 kg m(-2)) subtype, but only the association with high-grade serous cancers was significant. CONCLUSIONS: Higher BMI is associated with adverse survival among the majority of women with ovarian cancer.


Assuntos
Neoplasias Epiteliais e Glandulares/patologia , Obesidade/patologia , Neoplasias Ovarianas/patologia , Índice de Massa Corporal , Carcinoma Epitelial do Ovário , Intervalo Livre de Doença , Feminino , Humanos , Estimativa de Kaplan-Meier , Neoplasias Epiteliais e Glandulares/mortalidade , Obesidade/mortalidade , Neoplasias Ovarianas/mortalidade
9.
Arch Gynecol Obstet ; 292(1): 59-67, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25534163

RESUMO

PURPOSE: To evaluate the influence of the time interval between examination and delivery on the accuracy of sonographic weight estimation (WE) in fetal macrosomia. MATERIALS AND METHODS: 896 singleton pregnancies (birth weight > 4,000 g) with a total of 1,281 sonographic weight estimations were included in this retrospective cohort study. Fetuses were divided into six groups with regard to the time interval between estimation and delivery: group 1: scan-to-delivery interval: 0 days; group 2: scan-to-delivery interval: 1-3 days; group 3: scan-to-delivery interval: 4-7 days; group 4: scan-to-delivery interval: 8-14 days; group 5: scan-to-delivery interval: 15-21 days; group 6: scan-to-delivery interval: 22-42 days. The accuracy of WE was compared between five commonly used formulas using means of percentage errors (MPE), random error, medians of absolute percentage errors (MAPE), and proportions of estimates within 10 % of actual birth weight. RESULTS: Significant differences were found between the time interval groups with regard to MAPE and MPE values (p < 0.001). All formulas showed a systematic underestimation of fetal weight (negative MPEs) (p < 0.05). MPE values were closest to zero in time interval group 1 and 2. From group 3 to 6, a continuous decrease was observed. The lowest MAPE was found with the Merz formula in group 1 and 2. Values increased continuously from group 3 to 6. Differences between time interval group one and three did not reach statistical significance. CONCLUSIONS: WE in fetal macrosomia shows the best results when examinations are performed within 7 days before delivery, using the formula of Merz et al. Accuracy significantly decreases after this time period.


Assuntos
Parto Obstétrico , Macrossomia Fetal/diagnóstico por imagem , Peso Fetal/fisiologia , Ultrassonografia Pré-Natal/métodos , Adulto , Peso ao Nascer , Estudos de Coortes , Estudos Transversais , Feminino , Humanos , Recém-Nascido , Masculino , Gravidez , Estudos Retrospectivos , Fatores de Tempo , Adulto Jovem
10.
Arch Gynecol Obstet ; 292(4): 805-11, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25870017

RESUMO

PURPOSE: To evaluate the accuracy of intrapartum sonographic weight estimation (WE). MATERIALS AND METHODS: This retrospective, cross-sectional study included 1958 singleton pregnancies. Inclusion criteria were singleton pregnancy with cephalic presentation, vaginal delivery and ultrasound examination with complete biometric parameters performed on the day of delivery during the latent or active phase of labor, and absence of chromosomal or structural anomalies. The accuracy of intrapartum WE was compared to a control group of fetuses delivered by primary cesarean section at our perinatal center and an ultrasound examination with complete biometric parameters performed within 3 days before delivery (n = 392). Otherwise, the same inclusion criteria as in the study group were applied. The accuracy of WE was compared between five commonly applied formulas using means of percentage errors (MPE), medians of absolute percentage errors (MAPE), and proportions of estimates within 10 % of actual birth weight. RESULTS: In the whole study group, all equations showed a systematic underestimation of fetal weight (negative MPEs). Overall, best MAPE and MPE values were found with the Hadlock II formula, using BPD, AC and FL as biometric parameters (Hadlock II, MPE: -1.28; MAPE: 6.52). MPEs differed significantly between WE in the study and control group for all evaluated formulas: in the control group, either no systematic error (Hadlock III, IV and V) or a significant overestimation (Hadlock I, II) was found. Regarding MAPEs, application of the Hadlock III (HC, AC, FL) and V (AC) formula resulted in significant lower values in the control group (Hadlock III, MAPE: 7.48 vs. 5.95, p = 0.0008 and Hadlock V, MAPE: 8.79 vs. 7.52, p = 0.0085). No significant differences were found for the other equations. CONCLUSIONS: A systematic underestimation of fetal weight has to be taken into account in sonographic WE performed intrapartum. Overall, the best results can be achieved with WE formulas using the BPD as the only head measurement.


Assuntos
Peso Fetal/fisiologia , Ultrassonografia Pré-Natal/métodos , Adulto , Biometria , Peso ao Nascer/fisiologia , Cefalometria/métodos , Cefalometria/estatística & dados numéricos , Estudos Transversais , Parto Obstétrico , Feminino , Humanos , Trabalho de Parto , Valor Preditivo dos Testes , Gravidez , Análise de Regressão , Estudos Retrospectivos
11.
Reprod Domest Anim ; 50(6): 958-64, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26446780

RESUMO

The goal of this study was to compare a traditional slow-freeze method (TF) with an open unidirectional slow freeze cooling system (UF) for whole ovary cryopreservation. Therefore, whole pig ovaries were randomly assigned to (A) fresh control, (B) traditional slow freeze (TF) or (C) unidirectional slow freeze (UF). Ovaries were perfused with 10% DMSO in Krebs-Ringer. For TF, whole ovaries were placed in specimen jars containing 10% DMSO and placed into a specialized container for freezing filled with propan-2-ol. For UF, whole ovaries were placed within a specially designed container containing 10% DMSO and transferred to a specialized freezing machine (CTE 920). Histological evaluation demonstrated intact morphology of follicles in all groups; however, an overall decrease of follicle numbers in TF (46%) and UF (50%) compared to fresh control. Live/dead assay indicated significantly lower populations of live cells in both TF (60%) and UF (58%) compared to fresh tissue (74%). TUNEL assay confirmed a difference in percentage of apoptotic follicles between fresh and TF, but there was no significant difference between fresh and UF. To improve the structural and functional integrity of whole ovaries, further investigation, especially into directional freezing, is needed. Whole ovary cryopreservation could provide opportunities for women facing fertility loss due to chemo- or radiotherapy treatment.


Assuntos
Criopreservação/métodos , Preservação da Fertilidade/métodos , Preservação da Fertilidade/veterinária , Folículo Ovariano/fisiologia , Suínos , Animais , Feminino
12.
Ultraschall Med ; 36(6): 630-6, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25014478

RESUMO

PURPOSE: To determine the accuracy of sonographic weight estimation (WE) for small-for-gestational-age (SGA) fetuses, and to further differentiate the evaluation between symmetric and asymmetric SGA fetuses. MATERIALS AND METHODS: The accuracy of WE in SGA fetuses (n = 898) was evaluated using 14 sonographic models and was further differentiated between symmetric (n = 750) and asymmetric (n = 148) SGA fetuses. SGA fetuses were considered to be asymmetric with a head circumference to abdominal circumference ratio above the 95th percentile. The accuracy of the different formulas was compared using means of percentage errors (MPE), medians of absolute percentage errors (MAPE), and proportions of estimates within 10 % of actual birth weight. RESULTS: RESULTS for the subgroup of asymmetric SGA fetuses differed significantly from the subgroup of symmetric SGA fetuses. MPE values were closer to zero with most of the formulas in the asymmetric SGA group. Apart from the Siemer, Shepard, Merz and Warsof equations, all formulas showed an underestimation of fetal weight in asymmetric SGA fetuses. In contrast, in the symmetric SGA group, all of the formulas commonly used for fetuses in a normal weight range showed a systematic overestimation of fetal weight. Overall the best accuracy was achieved by using the Sabbagha equation (MPE 1.7 %; SD 9.0 %; MAPE: 6.0). CONCLUSION: An accurate WE in SGA fetuses is feasible using the Sabbagha formula. However, one has to be aware of the significant differences in WE between symmetric and asymmetric SGA fetuses.


Assuntos
Peso Fetal/fisiologia , Recém-Nascido Pequeno para a Idade Gestacional/fisiologia , Cefalometria , Estudos Transversais , Feminino , Idade Gestacional , Humanos , Recém-Nascido , Masculino , Gravidez , Estudos Retrospectivos , Sensibilidade e Especificidade , Estatística como Assunto , Circunferência da Cintura
13.
Ultraschall Med ; 36(3): 284-9, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-24927106

RESUMO

PURPOSE: The accuracy of the sonographic weight estimation (WE) of fetuses with congenital diaphragmatic hernia (CDH) is significantly lower than that of fetuses without any malformations. The objective of this study was to develop and evaluate the first specific sonographic weight formula for fetuses with CDH. MATERIALS AND METHODS: In a retrospective, multicenter, cohort study, a statistical estimation technique known as "multivariable fractional polynomial regression" was applied to a group of 146 fetuses with CDH. Each fetus underwent an ultrasound examination with complete biometric parameters within 7 days of delivery. A new formula was derived using the obtained data and was then compared with other commonly used equations. The accuracy of the different formulas was compared using means of signed percentage errors (SPE), medians of absolute percentage errors (MAPE), and fractions of estimates within prespecified error bounds. RESULTS: The new derived formula is: EFW = 10^(4.6729 107 371 + 0.2365 011 768 * HC + 0.2228 897 682 * FL^2 - 0.0129 895 773 * FL^3 - 1.0470 039 072 * (FL * HC)^0.5 + 0.0004 314 661 * (AC * HC) - [in case of liver herniation] 0.0062 112 122), where EFW is the estimated fetal weight, HC is the head circumference, AC is the abdominal circumference, and FL is the femur length. The new formula proved to be superior to other established equations, showing both the lowest median absolute percentage error (MAE: 6.97) and mean signed percentage error (SPE: 0.40), and the best distribution of absolute percentage errors within prespecified error bounds. CONCLUSION: This new formula significantly improves weight estimation in fetuses with CDH.


Assuntos
Peso Fetal , Hérnias Diafragmáticas Congênitas/diagnóstico por imagem , Ultrassonografia Pré-Natal/métodos , Estudos de Coortes , Feminino , Humanos , Recém-Nascido , Masculino , Modelos Estatísticos , Gravidez , Análise de Regressão , Estudos Retrospectivos
14.
Pathologe ; 36(6): 585-93, 2015 Nov.
Artigo em Alemão | MEDLINE | ID: mdl-26483249

RESUMO

Between 2011 and the end of 2014 the former consensus S2k guidelines for the diagnostics and treatment of cervical cancer were updated and upgraded to S3 level, methodologically based on the regulations of the German Cancer Society (DKG). The present article summarizes the relevant aspects for the sectioning, histopathological workup, diagnostics and reporting for the pathology of invasive cancer of the uterine cervix. The recommendations are based on the most recent World Health Organization (WHO) and TNM classification systems and consider the needs of the clinician for appropriate surgical and radiotherapeutic treatment of patients. Detailed processing rules of colposcopy-guided diagnostic biopsies, conization and trachelectomy as well as for radical hysterectomy specimens and lymph node resection (including sentinel lymph node resection) are given. In the guidelines deep stromal invasion in macroinvasive cervical cancer is defined for the first time as tumor infiltration of > 66% of the cervical stromal wall. Furthermore, morphological prognostic factors for microinvasive and macroinvasive cervical cancer are summarized.


Assuntos
Neoplasias do Colo do Útero/diagnóstico , Neoplasias do Colo do Útero/patologia , Neoplasias do Colo do Útero/terapia , Colo do Útero/patologia , Comportamento Cooperativo , Feminino , Alemanha , Humanos , Comunicação Interdisciplinar , Invasividade Neoplásica , Estadiamento de Neoplasias , Prognóstico , Organização Mundial da Saúde
15.
Br J Cancer ; 111(12): 2297-307, 2014 Dec 09.
Artigo em Inglês | MEDLINE | ID: mdl-25349970

RESUMO

BACKGROUND: Folate receptor 1 (FOLR1) is expressed in the majority of ovarian carcinomas (OvCa), making it an attractive target for therapy. However, clinical trials testing anti-FOLR1 therapies in OvCa show mixed results and require better understanding of the prognostic relevance of FOLR1 expression. We conducted a large study evaluating FOLR1 expression with survival in different histological types of OvCa. METHODS: Tissue microarrays composed of tumour samples from 2801 patients in the Ovarian Tumour Tissue Analysis (OTTA) consortium were assessed for FOLR1 expression by centralised immunohistochemistry. We estimated associations for overall (OS) and progression-free (PFS) survival using adjusted Cox regression models. High-grade serous ovarian carcinomas (HGSC) from The Cancer Genome Atlas (TCGA) were evaluated independently for association between FOLR1 mRNA upregulation and survival. RESULTS: FOLR1 expression ranged from 76% in HGSC to 11% in mucinous carcinomas in OTTA. For HGSC, the association between FOLR1 expression and OS changed significantly during the years following diagnosis in OTTA (Pinteraction=0.01, N=1422) and TCGA (Pinteraction=0.01, N=485). In OTTA, particularly for FIGO stage I/II tumours, patients with FOLR1-positive HGSC showed increased OS during the first 2 years only (hazard ratio=0.44, 95% confidence interval=0.20-0.96) and patients with FOLR1-positive clear cell carcinomas (CCC) showed decreased PFS independent of follow-up time (HR=1.89, 95% CI=1.10-3.25, N=259). In TCGA, FOLR1 mRNA upregulation in HGSC was also associated with increased OS during the first 2 years following diagnosis irrespective of tumour stage (HR: 0.48, 95% CI: 0.25-0.94). CONCLUSIONS: FOLR1-positive HGSC tumours were associated with an increased OS in the first 2 years following diagnosis. Patients with FOLR1-negative, poor prognosis HGSC would be unlikely to benefit from anti-FOLR1 therapies. In contrast, a decreased PFS interval was observed for FOLR1-positive CCC. The clinical efficacy of FOLR1-targeted interventions should therefore be evaluated according to histology, stage and time following diagnosis.


Assuntos
Biomarcadores Tumorais/biossíntese , Receptor 1 de Folato/biossíntese , Neoplasias Epiteliais e Glandulares/metabolismo , Neoplasias Ovarianas/metabolismo , Carcinoma Epitelial do Ovário , Intervalo Livre de Doença , Feminino , Humanos , Imuno-Histoquímica , Pessoa de Meia-Idade , Análise de Sobrevida , Análise Serial de Tecidos
16.
Arch Gynecol Obstet ; 289(1): 7-12, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-24220845

RESUMO

PURPOSE: This article describes the status of gynecological cancer care in Germany and gives an overview of the certification of gynecological cancer care by the German Cancer Society (Deutsche Krebsgesellschaft DKG). The DKG certifies cancer centers to promote a high-quality level in the treatment of oncological patients. METHODS: Searches were conducted in PubMed and ScienceDirect to identify the relevant literature. Catalog of requirements for centers certification as well as benchmark reports were used to characterize cancer care in centers certified by DKG. RESULTS AND CONCLUSIONS: The certification system of the DKG has been developed to ensure comprehensive care for cancer patients in Germany. The criteria for certification are based on interdisciplinary and inter-professional care conforming to guidelines and specialist expertise. These requirements have been shown to improve structural and process quality, and thus satisfaction and health outcomes in patients.


Assuntos
Institutos de Câncer/normas , Certificação , Neoplasias dos Genitais Femininos/terapia , Oncologia/normas , Feminino , Alemanha , Humanos , Sociedades
17.
Radiologe ; 54(3): 217-23, 2014 Mar.
Artigo em Alemão | MEDLINE | ID: mdl-24570108

RESUMO

Mammography is the central diagnostic method for clinical diagnostics of breast cancer and the breast cancer screening program. In the clinical routine complementary methods, such as ultrasound, tomosynthesis and optional magnetic resonance imaging (MRI) are already combined for the diagnostic procedure. Future developments will utilize investigative procedures either as a hybrid (combination of several different imaging modalities in one instrument) or as a fusion method (the technical fusion of two or more of these methods) to implement fusion imaging into diagnostic algorithms. For screening there are reasonable hypotheses to aim for studies that individualize the diagnostic process within the screening procedure. Individual breast cancer risk prediction and individualized knowledge about sensitivity and specificity for certain diagnostic methods could be tested. The clinical implementation of these algorithms is not yet in sight.


Assuntos
Neoplasias da Mama/diagnóstico , Detecção Precoce de Câncer/tendências , Previsões , Mamografia/tendências , Imagem Molecular/tendências , Imagem Multimodal/tendências , Técnica de Subtração/tendências , Algoritmos , Feminino , Humanos , Aumento da Imagem/métodos
19.
Arch Gynecol Obstet ; 287(5): 851-8, 2013 May.
Artigo em Inglês | MEDLINE | ID: mdl-23224651

RESUMO

PURPOSE: To assess the accuracy of weight estimation (WE) in fetuses with breech presentation and to compare it directly with a control group of fetuses in vertex presentation. MATERIALS AND METHODS: In a retrospective cohort study, the accuracy of WE in fetuses with breech presentation (n = 244) was evaluated using eight sonographic models and was compared with a control group of fetuses in vertex presentation (n = 244). Each fetus underwent ultrasound examination with complete biometric parameters within 7 days before delivery. The accuracy of the different formulas was compared using means of percentage error (MPE), a measure that reflects systematic error; standard deviation values of MPEs, a measure for random error; medians of absolute percentage error (MAPE), which take both the systematic and random error into account and the percentage of fetal WEs falling within a 10 % range of the actual birth weight. RESULTS: Significantly lower (more negative) MPE values were found in the breech group with the Hadlock (AC, FL) formula, whereas no significant differences were seen with any of the other equations. When compared to zero, in the breech group, a significant systematic error was found with five formulas, while in the control group a significant systematic error was found with three equations. With regard to random error and MAPE, no significant differences were found between the two groups, irrespective of the formula applied. Generally, in both groups, formulas based on three or four biometric indices were more accurate in detecting fetal weight than formulas with only one or two parameters. CONCLUSIONS: Weight estimation in fetuses with breech presentation was as accurate as weight estimation in fetuses with vertex presentation. Using the currently available, well-established formulas should therefore also be appropriate for WE in fetuses with such malpresentations.


Assuntos
Apresentação Pélvica/diagnóstico por imagem , Peso Fetal , Ultrassonografia Pré-Natal , Antropometria/métodos , Peso ao Nascer , Estudos de Coortes , Feminino , Idade Gestacional , Humanos , Masculino , Gravidez , Análise de Regressão , Estudos Retrospectivos
20.
Ultraschall Med ; 34(2): 145-50, 2013 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-22623132

RESUMO

PURPOSE: To assess the diagnostic accuracy of a new automatic texture-based algorithm (ATBA) in ultrasound imaging of ovarian masses and to compare its performance to subjective assessment by examiners with different levels of ultrasound experience. MATERIALS AND METHODS: A total of 105 ultrasound images from three different groups of ovarian lesions (malignancies, functional cysts, and dermoid cysts) were evaluated using ATBA and by a total of 36 examiners with four different levels of experience (9 junior trainees, 8 senior trainees, 11 senior gynecologists, and 8 experts). Cohen's κ, Youden's indices, and the sensitivity and specificity of ATBA and of each observer were calculated for every subgroup of ovarian lesions. RESULTS: ATBA classified 78 of the 105 masses correctly (κ = 0.62) - results that were significantly better than those of the junior and senior trainees (p = 0.02 and p < 0.01), while differences from the group of level II examiners did not reach statistical significance (p = 0.27). The best diagnostic performance (κ = 0.70) was obtained by the group of expert level III ultrasonographers. The best classification rates overall, including both ATBA and subjective assessments, were achieved in the detection of functional cysts (Youden's indices from 0.73 to 0.85), while the poorest diagnostic performance was obtained for the classification of dermoid cysts (Youden's indices from 0.28 to 0.55). CONCLUSION: ATBA showed a significantly better diagnostic performance than observers with low or medium levels of experience, emphasizing its potential value for training purposes and in providing additional diagnostic assistance for inexperienced observers.


Assuntos
Aumento da Imagem/métodos , Interpretação de Imagem Assistida por Computador/métodos , Neoplasias Ovarianas/diagnóstico por imagem , Ultrassonografia/métodos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Cisto Dermoide/diagnóstico por imagem , Cisto Dermoide/patologia , Cisto Dermoide/cirurgia , Diagnóstico Diferencial , Feminino , Humanos , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Variações Dependentes do Observador , Cistos Ovarianos/diagnóstico por imagem , Cistos Ovarianos/patologia , Cistos Ovarianos/cirurgia , Neoplasias Ovarianas/patologia , Neoplasias Ovarianas/cirurgia , Ovário/diagnóstico por imagem , Ovário/patologia , Sensibilidade e Especificidade , Adulto Jovem
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