Original Article Archives - Revista Brasileira de Ginecologia e Obstetrícia

  • Original Article07-26-2024

    Real-world data on adjuvant capecitabine after standard neoadjuvant chemotherapy for triple negative breast cancer

    Revista Brasileira de Ginecologia e Obstetrícia. 2024;46:e-rbgo29

    Abstract

    Original Article

    Real-world data on adjuvant capecitabine after standard neoadjuvant chemotherapy for triple negative breast cancer

    Revista Brasileira de Ginecologia e Obstetrícia. 2024;46:e-rbgo29

    DOI 10.61622/rbgo/2024rbgo29

    Views199

    Abstract

    Objective

    Neoadjuvant chemotherapy (NACT) has become the standard of care for patients with triple-negative breast cancer (TNBC) with tumors > 1 cm or positive axillary nodes. Pathologic complete response (pCR) has been used as an endpoint to select patients for treatment scaling. This study aimed to examine the benefit of adding adjuvant capecitabine for TNBC patients who did not achieve pCR after standard NACT in a real-world scenario.

    Methods

    This retrospective cohort study included all patients with TNBC who underwent NACT between 2010 and 2020. Clinicopathological data were obtained from the patient records. Univariate and multivariate analyses were conducted at the 5 years follow-up period.

    Results

    We included 153 patients, more than half of whom had stage III (58.2%) and high-grade tumors (60.8%). The overall pCR rate was 34.6%, and 41% of the patients with residual disease received adjuvant capecitabine. Disease-specific survival (DSS) among the patients who achieved pCR was significantly higher (p<0.0001). Residual disease after NACT was associated with detrimental effects on DSS. In this cohort, we did not observe any survival benefit of adding adjuvant capecitabine for patients with TNBC subjected to NACT who did not achieve pCR (p=0.52).

    Conclusion

    Our study failed to demonstrate a survival benefit of extended capecitabine therapy in patients with TNBC with residual disease after NACT. More studies are warranted to better understand the indication of systemic treatment escalation in this scenario.

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    This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
  • Original Article07-26-2024

    Mid-pregnancy circulating cytokine levels, placental efficiency and their relationship with preterm birth

    Revista Brasileira de Ginecologia e Obstetrícia. 2024;46:e-rbgo58

    Abstract

    Original Article

    Mid-pregnancy circulating cytokine levels, placental efficiency and their relationship with preterm birth

    Revista Brasileira de Ginecologia e Obstetrícia. 2024;46:e-rbgo58

    DOI 10.61622/rbgo/2024rbgo58

    Views202

    Abstract

    Objective

    To assess a panel of cytokines and placental insufficiency with the risk of preterm delivery (PTD).

    Methods

    Nested case-control study into the BRISA birth cohort. Eighty-two mother-infant-placenta pairs were selected at 20+0 to 25+6 weeks. Circulating biomarker levels were performed using Luminex flowmetric xMAP technology. Cytokines classified as Th1, Th2 or Th17 and other biomarkers were selected. The ratio between birth weight and placental weight (BW/PW) was used as a proxy for placental efficiency. Spearman correlation, univariate analyses and logistic regression models were calculated. Sensitivity, specificity, positive and negative likelihood ratios were calculated using the Receiver Operating Characteristic curve.

    Results

    Mean gestational age was 250 days, 14,6% were small for gestational age, 4,8% large for gestational age and 13,4% stunted. Placental efficiency was higher for term newborns (p<0,001), and 18/22 (81%) preterm biomarker values were higher than the control group. Th1 cytokines were highly correlated, while the weakest correlation was observed in other biomarkers. Less education was associated with a higher risk of PTD (p = 0.046), while there was no appreciable difference in the risk of PTD for placental insufficiency. Biomarkers showed negligible adjusted OR of PTD (0.90 to 1.02). IL-6, IL-8, IL-1β, TNFβ, IL-4, IL-13, GCSF, MIP1A, VEGF, EGF, and FGF2 presented a higher sensitivity ranging from 75.56% to 91.11%.

    Conclusion

    IL-8, IL-12p40, IL-4, IL-13, GCSF, MIP1B, and GMSF in asymptomatic pregnant women were associated with PTD. This finding suggests an activation of maternal inflammatory response.

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    This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
  • Original Article07-26-2024

    Factors associated with exclusive breastfeeding in “Near Miss” neonates in Brazil

    Revista Brasileira de Ginecologia e Obstetrícia. 2024;46:e-rbgo59

    Abstract

    Original Article

    Factors associated with exclusive breastfeeding in “Near Miss” neonates in Brazil

    Revista Brasileira de Ginecologia e Obstetrícia. 2024;46:e-rbgo59

    DOI 10.61622/rbgo/2024rbgo59

    Views142

    Abstract

    Objective

    To assess the association between sociodemographic and perinatal factors and hospital practices to encourage exclusive breastfeeding in near miss neonates in maternity hospitals.

    Methods

    This is a prospective cohort of live births from the survey “To be born in Brazil” conducted between 2011 and 2012. The weighted number of newborns who met the neonatal near miss criteria was 832. Exclusive breastfeeding at hospital discharge and 45 days after delivery were dependent variables of the study. The sociodemographic and perinatal factors of the puerperal women and hospital practices to encourage breastfeeding were independent variables. The data were analyzed with Poisson regression and set with p value<0.05. Is exclusive breastfeeding in neonatal near misses associated with factors related to sociodemographic conditions, maternal characteristics and the organization of health services?

    Results

    Data from 498 women and their children were analyzed. Mothers with incomplete primary education were more likely (36%) to have exclusive breastfeeding (RR: 1.36; 95% CI: 1.06-1.74) at discharge. Women who did not offer the breast to the newborn in the joint accommodation (65%) were less likely to be breastfeeding exclusively (RR: 0.65; 95% CI: 0.56-0.75) at discharge. Variables that increased the probability of exclusive breastfeeding after 45 days of delivery were primiparity (RR: 1.36; 95% CI: 1.08-1.69) and having the newborn in the delivery room (RR: 1.90; 95% CI: 1.12-3.24).

    Conclusion

    Exclusive breastfeeding in neonatal near misses was associated with maternal characteristics and important hospital practices, such as being breastfed in the joint accommodation and the newborn being in the mother’s lap in the delivery room.

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    This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
  • Original Article07-26-2024

    Mode of delivery according to Robson classification and perinatal outcomes in restricted and small for gestational age fetuses

    Revista Brasileira de Ginecologia e Obstetrícia. 2024;46:e-rbgo30

    Abstract

    Original Article

    Mode of delivery according to Robson classification and perinatal outcomes in restricted and small for gestational age fetuses

    Revista Brasileira de Ginecologia e Obstetrícia. 2024;46:e-rbgo30

    DOI 10.61622/rbgo/2024rbgo30

    Views210

    Abstract

    Objective

    To evaluate the mode of delivery according to Robson classification (RC) and the perinatal outcomes in fetal growth restriction (FGR) and small for gestational age (SGA) fetuses.

    Methods

    Retrospective cohort study by analyzing medical records of singleton pregnancies from two consecutive years (2018 and 2019). FGR was defined according to Delphi Consensus. The Robson groups were divided into two intervals (1–5.1 and 5.2–10).

    Results

    Total of 852 cases were included: FGR (n = 85), SGA (n = 20) and control (n=747). FGR showed higher percentages of newborns < 1,500 grams (p<0.001) and higher overall cesarean section (CS) rates (p<0.001). FGR had the highest rates of neonatal resuscitation and neonatal intensive care unit admission (p<0.001). SGA and control presented higher percentage of patients classified in 1 - 5.1 RC groups, while FGR had higher percentage in 5.2 - 10 RC groups (p<0.001). FGR, SGA and control did not differ in the mode of delivery in the 1-5.1 RC groups as all groups showed a higher percentage of vaginal deliveries (p=0.476).

    Conclusion

    Fetuses with FGR had higher CS rates and worse perinatal outcomes than SGA and control fetuses. Most FGR fetuses were delivered by cesarean section and were allocated in 5.2 to 10 RC groups, while most SGA and control fetuses were allocated in 1 to 5.1 RC groups. Vaginal delivery occurred in nearly 60% of FGR allocated in 1-5.1 RC groups without a significant increase in perinatal morbidity. Therefore, the vaginal route should be considered in FGR fetuses.

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    This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
  • Original Article07-26-2024

    Association of insulin-like growth factor II mrna-binding protein 3 (IMP3) expression with prognostic and morphological factors in endometrial cancer

    Revista Brasileira de Ginecologia e Obstetrícia. 2024;46:e-rbgo61

    Abstract

    Original Article

    Association of insulin-like growth factor II mrna-binding protein 3 (IMP3) expression with prognostic and morphological factors in endometrial cancer

    Revista Brasileira de Ginecologia e Obstetrícia. 2024;46:e-rbgo61

    DOI 10.61622/rbgo/2024rbgo61

    Views173

    Abstract

    Objective

    Endometrial cancer (EC) is a heterogeneous disease with recurrence rates ranging from 15 to 20%. The discrimination of cases with a worse prognosis aims, in part, to reduce the length of surgical staging in cases with a better prognosis. This study aimed to evaluate the association between Insulin-like growth factor II mRNA-binding protein 3 (IMP3) expression and prognostic and morphological factors in EC.

    Methods

    This retrospective, cross-sectional, analytical study included 79 EC patients - 70 endometrioid carcinoma (EEC) and 9 serous carcinoma (SC) - and 74 benign endometrium controls. IMP3 expression was evaluated by immunohistochemistry-based TMA (Tissue Microarray), and the results were associated with morphological and prognostic factors, including claudins 3 and 4, estrogen and progesterone receptors, TP53, and KI67.

    Results

    IMP3 expression was significantly higher in SC compared to EEC in both extent (p<0.001) and intensity (p=0.044). It was also significantly associated with worse prognostic factors, including degree of differentiation (p=0.024, p<0.001), staging (p<0.001; p<0.001) and metastasis (p=0.002; p<0.001). IMP3 expression was also significant in extent (p=0.002) in endometrial tumors compared with controls. In addition, protein TP53 and KI67 showed significant associations in extent and intensity, respectively.

    Conclusion

    IMP3 expression was associated with worse prognostic factors studied. These findings suggest that IMP3 may be a potential biomarker for EC poorer prognosis.

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    This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
  • Original Article07-26-2024

    Study of 138 vulvar lichen sclerosus patients and the malignant risk transformation

    Revista Brasileira de Ginecologia e Obstetrícia. 2024;46:e-rbgo62

    Abstract

    Original Article

    Study of 138 vulvar lichen sclerosus patients and the malignant risk transformation

    Revista Brasileira de Ginecologia e Obstetrícia. 2024;46:e-rbgo62

    DOI 10.61622/rbgo/2024rbgo62

    Views197

    Abstract

    Objective

    To report the prevalence of malignant transformation of vulvar lichen sclerosus (VLS) and possible risk factors.

    Methods

    This is a cohort study with data analysis from medical records of 138 patients with histological diagnosis of VLS registered at the Vulvar Pathology Outpatient Clinic of the University Hospital, between 2007 and 2017. Predominance of risk factors was performed using logistic regression analysis. The variables studied were the length of follow-up, age, regular or irregular follow up; presence of symptoms (dyspareunia, pruritus and/or vulvar burning); histology characteristics, the presence of epithelial hyperplasia; and the presence of autoimmune diseases.

    Results

    There were 138 patients included in the study, and among them five progressed to malignant transformation. The patients had a median age of 59 years and 83% were symptomatic. The most frequent symptom was itching with 72%. Autoimmune diseases were present in 11.6%, the most prevalent being thyroid disease. All five case of malignant transformation (0.6%) had an irregular follow up. The logistic regression analysis was used among the studied variables, and no statistical significance was found among them (p ≥ 0.05). The relationship between hyperplasia and the clinical outcome of malignant transformation, in which non-significant but acceptable p value close to 0.05 was observed.

    Conclusion

    The prevalence of malignant transformation in patients with VLS was 0.6%, and common factors were the lack of adherence to medical treatments and the loss of follow-up.

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    This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
  • Original Article07-26-2024

    Agreement between frozen section and histopathology to detect malignancy in adnexal masses according to size and morphology by ultrasound

    Revista Brasileira de Ginecologia e Obstetrícia. 2024;46:e-rbgo63

    Abstract

    Original Article

    Agreement between frozen section and histopathology to detect malignancy in adnexal masses according to size and morphology by ultrasound

    Revista Brasileira de Ginecologia e Obstetrícia. 2024;46:e-rbgo63

    DOI 10.61622/rbgo/2024rbgo63

    Views187

    Abstract

    Objective

    Management of suspect adnexal masses involves surgery to define the best treatment. Diagnostic choices include a two-stage procedure for histopathology examination (HPE) or intraoperative histological analysis – intraoperative frozen section (IFS) and formalin-fixed and paraffin-soaked tissues (FFPE). Preoperative assessment with ultrasound may also be useful to predict malignancy. We aimed at determining the accuracy of IFS to evaluate adnexal masses stratified by size and morphology having HPE as the diagnostic gold standard.

    Methods

    A retrospective chart review of 302 patients undergoing IFS of adnexal masses at Hospital de Clínicas de Porto Alegre, between January2005 and September2011 was performed. Data were collected regarding sonographic size (≤10cm or >10cm), characteristics of the lesion, and diagnosis established in IFS and HPE. Eight groups were studied: unilocular lesions; septated/cystic lesions; heterogeneous (solid/cystic) lesions; and solid lesions, divided in two main groups according to the size of lesion, ≤10cm or >10cm. Kappa agreement between IFS and HPE was calculated for each group.

    Results

    Overall agreement between IFS and HPE was 96.1% for benign tumors, 96.1% for malignant tumors, and 73.3% for borderline tumors. Considering the combination of tumor size and morphology, 100% agreement between IFS and HPE was recorded for unilocular and septated tumors ≤10cm and for solid tumors.

    Conclusion

    Stratification of adnexal masses according to size and morphology is a good method for preoperative assessment. We should wait for final HPE for staging decision, regardless of IFS results, in heterogeneous adnexal tumors of any size, solid tumors ≤10cm, and all non-solid tumors >10cm.

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    This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
  • Original Article07-26-2024

    Maternal deaths caused by eclampsia in Brazil: a descriptive study from 2000 to 2021

    Revista Brasileira de Ginecologia e Obstetrícia. 2024;46:e-rbgo65

    Abstract

    Original Article

    Maternal deaths caused by eclampsia in Brazil: a descriptive study from 2000 to 2021

    Revista Brasileira de Ginecologia e Obstetrícia. 2024;46:e-rbgo65

    DOI 10.61622/rbgo/2024rbgo65

    Views253

    Abstract

    Objective

    Eclampsia is a hypertensive disorder that occurs during pregnancy and can lead to death. The literature has gaps by not providing comprehensive data on the epidemiology of the disease, restricting analysis to limited temporal intervals and geographical locations. This study aims to characterize the epidemiological profile of women who died from eclampsia in Brazil from 2000 to 2021.

    Methods

    The maternal mortality data were obtained from the Sistema de Informações sobre Mortalidade, with the following variables of interest selected: “Federative Unit,” “Year,” “Age Range,” “Race/Color,” and “Education Level.” The collection of the number of live births for data normalization was conducted in the Sistema de Informações sobre Nascidos Vivos. Statistical analyses were performed using GraphPad Prism, calculating odds ratio for variables and fixing number of deaths per 100,000 live births for calculating maternal mortality ratio (MMR).

    Results

    There was a downward trend in maternal mortality rate during the study period. Maranhão stood out as the federative unit with the highest MMR (17 deaths per 100.000 live births). Mothers aged between 40 and 49 years (OR = 3.55, CI: 3.11–4.05) presents higher MMR. Additionally, black women showed the highest MMR (OR = 4.67, CI: 4.18–5.22), as well as mothers with no educational background (OR = 5.83, CI: 4.82–7.06).

    Conclusion

    The epidemiological profile studied is predominantly composed of mothers with little or no formal education, self-declared as Black, residing in needy states and with advanced aged. These data are useful for formulating public policies aimed at combating the issue.

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    This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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