Publications by authors named "Ettie Piura"

Objective: To evaluate the feasibility and accuracy of a novel ultrasonographic screening method for an aberrant right subclavian artery (ARSA) using the novel "full rectangle" method.

Methods: This prospective study was conducted at a tertiary care center, September 2022 to February 2023. The study included unselected pregnant women at 14-38 weeks of gestation referred for routine or targeted anomaly scans.

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  • The velocity time integral (VTI) is a Doppler ultrasound measurement used to evaluate blood flow, specifically looking at the middle cerebral artery (MCA) in fetuses affected by maternal alloimmunization.
  • This study analyzed 255 Doppler examinations across different gestational weeks and found that VTI increases as pregnancy progresses, with significant differences in values when comparing fetuses with suspected anemia to those without.
  • The findings suggest that higher VTI in fetuses may indicate increased blood flow to the brain, potentially serving as a new marker for detecting fetal anemia.
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  • External cephalic version (ECV) is a safe and cost-effective procedure for turning a breech baby before birth, with a success rate of 75% in the studied cases.
  • Following the procedure, the well-being of the fetus is evaluated through a non-stress test and Doppler measurements of blood flow in arteries, which showed increased resistance after ECV but no lasting negative effects.
  • Although ECV can temporarily alter placental blood flow, it is generally safe for uncomplicated pregnancies, highlighting the need for careful selection of patients for the procedure.
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Objective: Most patients with epithelial ovarian cancer will experience a recurrence; currently, there is no cure. In patients with platinum-sensitive disease (platinum-free interval >6 months), a combination similar to that used as frontline therapy (carboplatin and paclitaxel) is recommended. However, it is associated with a high incidence (20%) of neurotoxicity.

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Two topotecan treatment schedules in patients with recurrent epithelial ovarian cancer were evaluated. Protocol A (21 days) was 1.5 mg/m(2)/day topotecan on days 1 through 5 of a 21-day cycle; Protocol B (weekly) 4 mg/m(2) on days 1, 8, and 15 of a 28-day cycle.

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Purpose: To investigate the clinical characteristics and pre-operative imaging features of non-genital metastatic ovarian tumors.

Methods: A retrospective case series study that compared 18 patients with histologically confirmed non-genital metastatic ovarian tumors (the study group) with 25 patients who were diagnosed with a primary ovarian cancer (control group).

Results: The most common primary disease was breast cancer (n = 10; 55 %), followed by colon cancer, gastric cancer, lymphoma, and unknown primary malignancy.

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This paper will focus on knowledge related to brain metastases from endometrial carcinoma. To date, 115 cases were documented in the literature with an incidence of 0.6% among endometrial carcinoma patients.

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This paper will focus on knowledge related to brain metastases from ovarian carcinoma. So far, less than 600 cases were documented in the literature with an incidence among ovarian carcinoma patients ranging from 0.29% to 11.

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Purpose: Somatostatin analogs act directly on breast cancer cells and indirectly on insulin and insulin-like growth factor 1 (IGF-1) levels. This trial was undertaken to assess whether octreotide would lower insulin and IGF-1 levels and reduce risk of breast cancer recurrence.

Patients And Methods: The NCIC CTG MA.

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Autoantibodies (AAbs) to tumor-associated antigens (TAAs) have been identified in the sera of cancer patients. In a previous review published in this journal, we have focused on recent knowledge related to circulating AAbs to individual TAAs in breast carcinoma. This review will focus on recent knowledge related to AAb assays to tailor-made panels of TAAs in breast carcinoma.

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Objective: The aims of the study were to evaluate the ability of metformin to induce apoptosis in epithelial ovarian cancer cell lines and to identify the pathways involved in this effect.

Methods: After treatment with metformin and/or cisplatin, OVCAR-3 and OVCAR-4 cellular apoptosis was assessed by flow cytometry and caspase 3/7 activity. Cell cycle analysis was also performed by flow cytometry as well.

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Autoantibodies (AAbs) to tumor-associated antigens (TAAs) have been identified in the circulation of patients with cancer. This paper will focus on recent knowledge related to circulating AAbs to TAAs in breast carcinoma. So far, the following TAAs have been identified to elicit circulating AAbs in breast carcinoma: p53, MUC-1, heat shock proteins (HSP-27, HSP-60, and HSP-90), HER2/neu/c-erb B2, GIPC-1, c-myc, c-myb, cancer-testis antigens (NY-ESO-1), BRCA1, BRCA2, endostatin, lipophilin B, cyclin B1, cyclin D1, fibulin, insulin-like growth factor binding protein 2 (IGFBP-2), topoisomerase II alpha (TOPO2α), and cathepsin D.

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Splenic metastases are rare. Usually, they are part of a disseminated disease and located on the splenic capsule. Common sources are breast cancer, lung cancer and malignant melanoma.

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This review will focus on recent knowledge related to circulating autoantibodies (AAbs) to tumor-associated antigens (TAAs) in epithelial ovarian carcinoma. So far, the following TAAs have been identified to elicit circulating AAbs in epithelial ovarian carcinoma: p53, homeobox proteins (HOXA7, HOXB7), heat shock proteins (HSP-27, HSP-90), cathepsin D, cancer-testis antigens (NY-ESO-1/LAGE-1), MUC1, GIPC-1, IL-8, Ep-CAM, and S100A7. Since AAbs to TAAs have been identified in the circulation of patients with early-stage cancer, it has been speculated that the assessment of a panel of AAbs specific for epithelial ovarian carcinoma TAAs might hold great potential as a novel tool for early diagnosis of epithelial ovarian carcinoma.

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