Publications by authors named "Nayuko Sato"

Article Synopsis
  • Neoadjuvant treatment combining trastuzumab with nab-PTX is effective for node-negative, small HER2-positive breast cancer, aiming for a less toxic approach compared to traditional anthracycline regimens.
  • In a study involving 18 patients, 66.7% achieved a pathological complete response (pCR), indicating successful tumor reduction without the need for anthracycline in subsequent treatment.
  • The treatment was well-tolerated, with no severe adverse events reported, suggesting it could be a promising option for patients with low relapse risk.*
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This case report discusses a 48-year-old woman with metastatic breast cancer: T4c(10.5 cm)N2bM1,(OSS, LYM), stage IV, estrogen receptor(ER)(+), progesterone receptor(PgR)(+), human epidermal growth factor receptor-2(HER2) (-), and Ki-67 17.2%.

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Background: There is no consensus on the need for adjuvant chemotherapy for patients with pathological residual invasive breast cancer (non-pCR) after neoadjuvant chemotherapy (NAC). We evaluated the tolerability and safety of tegafur-uracil (UFT) as adjuvant chemotherapy for patients with human epidermal growth factor receptor 2-negative breast cancer that resulted in non-pCR after NAC.

Patients And Methods: We treated patients with 270 mg/m UFT per day for 2 years after definitive surgery and radiotherapy, if necessary.

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The purpose of this study was to retrospectively analyze the feasibility of outpatient management without initial assessment for febrile patients undergoing adjuvant chemotherapy for breast cancer. A total of 131 consecutive patients with breast cancer treated with adjuvant or neoadjuvant chemotherapy from 2011 to 2013 at Osaka Medical College Hospital (Osaka, Japan) were retrospectively reviewed. In the case of developing a fever (body temperature, ≥38°C), the outpatients had been instructed to take previously prescribed oral antibiotics for 3 days without any initial assessment, and if no improvement had occurred by then, they were required to visit the hospital for examination and to undergo treatment based on the results of a risk assessment for complications.

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Squamous cell carcinoma(SCC)of the breast is a rare disease. We encountered a case of SCC of the breast that relapsed in the early postoperative period and rapidly progressed thereafter. A 38-year-old woman visited our hospital presenting with a tumor in the left breast consisting of a 5-cm mass with an irregularly sharped wall.

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We evaluated the cosmetic outcome of volume replacement with oxidized regenerated cellulose (ORC) after breast-conserving surgery (BCS) and also examined factors that may have influenced the results. Ninety-four patients who underwent BCS with ORC replacement between January 2010 and August 2012 participated in this study. The cosmetic outcomes of these patients were evaluated using scores based on the criteria of the Japan Breast Cancer Society.

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Taxanes, including paclitaxel (PTX) and docetaxel (DOC), are poorly soluble in water due to their hydrophobic properties and thus, require solvents. However, use of these solvents has been associated with toxic responses, including a hypersensitivity reaction (HSR). Nanoparticle albumin-bound paclitaxel (nab-PTX) is a novel formulation of PTX, which allows reconstitution of the agent with a saline solution instead of solvents and administration without premedication for HSRs.

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Article Synopsis
  • Metastatic breast tumors are uncommon, but malignant melanoma, especially from cutaneous sources, frequently spreads to the breast, with a rare case reported here involving a melanoma from the nasal cavity.
  • The patient, a 78-year-old woman, underwent surgery and radiotherapy but experienced rapid disease progression despite treatment.
  • This case highlights the importance of developing tailored treatment strategies based on the specific origin and characteristics of the melanoma, as it represents a unique situation not previously documented in medical literature.
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The use of computed tomography (CT) with regards to the clinical staging of patients with asymptomatic breast cancer has been on the increase in clinical practice. However, the benefits of routine CT have yet to be fully clarified. This study investigated the value of employing contrast-enhanced CT (CECT) to screen for distant metastases in patients with asymptomatic breast cancer.

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Purpose: This study evaluated and compared the predictive values of the Memorial Sloan-Kettering Cancer Center (MSKCC) nomogram and the Stanford nomogram for predicting non-sentinel lymph node (SLN) metastasis in patients with SLN metastasis, which were the only nomograms available online, and verified their usefulness in the macrometastasis or micrometastasis/isolated tumor cell (ITC) subgroups.

Methods: Eighty-nine patients with a positive SLN biopsy who underwent axillary lymph node dissection were analyzed. The predicted probability of non-SLN metastasis was calculated using a computerized model from the websites for each nomogram.

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Breast-conserving surgery (BCS) has been increasingly performed as a standard operative strategy for patients with breast cancer. The primary purpose of BCS is to acquire both local control and good cosmetic results. An insignificant difference in cancer treatment results has been shown between BCS and total mastectomy.

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