Publications by authors named "Hideki Asakawa"

Palbociclib, a CDK4/6 inhibitor, is found to be an effective therapeutic drug in the treatment of estrogen receptor positive (ER+)metastatic breast cancer. In this report, we describe a case of rapid progression of life-threatening multiple bone metastases of breast cancer treated with a combination of fulvestrant and palbociclib. The patient, a 58-year-old postmenopausal woman, was diagnosed with left breast cancer at the age of 43 years and underwent breast-conserving surgery.

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A 57-year-old Japanese woman underwent partial mastectomy of the right breast and sentinel lymph node biopsy in July 2005. The diagnosis was mucinous carcinoma with negative margins and no lymph node metastases(pT1cN0M0, pStage Ⅰ A). Postoperative adjuvant therapy included radiation therapy and oral administration of anastrozole for 5 years.

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Background: A retrospective study of the real-world use of neoadjuvant endocrine therapy (NET) is important for standardizing the role of NET in breast cancer care.

Methods: In a consecutive series of women with operable breast cancer who received NET for ≥28 days, associations of NET objectives, NET outcomes, adjuvant chemotherapy use after NET, and survival with clinicopathological factors were examined.

Results: NET objectives were reduction in surgical extent in 49 patients, avoidance of surgery in 31, and treatment until scheduled surgery in 8.

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Introduction: In patients receiving chronic anticoagulation agents, antiplatelet agents, or both, perioperative antithrombotic therapy for inguinal hernia repair requires an understanding of potential side-effects-specifically, the postoperative bleeding risks. In the present study, we evaluated postoperative bleeding complications after transabdominal preperitoneal patch plasty (TAPP) in patients undergoing antithrombotic therapy.

Methods: We retrospectively reviewed 413 patients who had undergone TAPP between February 2013 and June 2017.

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Background: The prognosis and survival of patients with advanced gastric cancer is poor. Although completeness of resection (R0) is one of the most important factors affecting survival, multivisceral resection (MVR) for locally advanced (clinical T4b, cT4b) gastric cancer remains controversial. The aim of this study was to evaluate the factors affecting prognosis and survival after MVR in patients with cT4b gastric cancer.

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Background: The study aimed to evaluate the prognosis for patients with colorectal cancer who underwent surgery while receiving antithrombotic therapy (ATT) across all disease stages and for patients at disease stages 0-III.

Methods: This retrospective cohort study included 710 Japanese patients who underwent surgery for colorectal cancer between January 2009 and November 2015 at our institution. Approximately 35% of these patients received ATT.

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Background: The aim of the study was to evaluate the clinical results and postoperative complications, especially recanalization or bleeding complications, in patients with saphenous varicose veins undergoing endovenous laser ablation (EVLA) while receiving antithrombotic therapy (ATT).

Methods: This retrospective cohort study included 1136 Japanese patients undergoing EVLA with a 980-nm diode laser between January 2012 and November 2015 at our institution. The patients were divided into two groups: ATT users (ATT group) and nonusers (control group).

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Background/aim: The aim of this study was to investigate the efficacy and safety of S-1 plus low-dose cisplatin for stage IIIB and stage IIIC gastric cancer patients after D2 gastrectomy.

Patients And Methods: The study group comprised of 52 patients. In the first cycle, S-1 (80 mg/m) was administered daily for 3 weeks, followed by 2 weeks of rest; low-dose cisplatin (10 mg) was administered on days 1-5 and 8-12.

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Chilaiditi syndrome is defined as the interposition of the bowel between the liver and right diaphragm. It is a rare disease and may be difficult to diagnose and manage. Treatment for asymptomatic patients with Chilaiditi is usually conservative and does not require surgical intervention, but surgery may be necessary if conservative treatment fails.

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Background: The aim of this study was to identify factors associated with perioperative morbidity among patients who underwent laparoscopic gastrectomy while receiving antithrombotic therapy (ATT).

Patients And Method: This retrospective cohort study included 46 patients (14 females and 32 males) who underwent laparoscopic gastrectomy, including 12 (26.1 %) who received perioperative ATT, between January 2012 and November 2015 in our institution.

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Immunoglobulin G4 (IgG4)-related sclerosing disease is a systemic inflammatory syndrome, and an understanding of its characteristics is currently evolving. IgG4-related cholecystitis is a manifestation of IgG4-related sclerosing disease in the gallbladder. This case report describes the clinical, radiographic, and histopathological findings in a young male patient who presented with a synchronous mass in the gallbladder.

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Background Postpancreatectomy hemorrhage (PPH) is a serious complication after pancreatic surgery. In this study, we evaluated PPH and thromboembolic complications after pancreatic surgery in patients with perioperative antithrombotic treatment. Methods Medical records of patients undergoing pancreatic surgery were reviewed retrospectively.

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Background/purpose: Postoperative pancreatic fistula formation remains a source of significant morbidity following distal pancreatectomy. The aim of this study was to evaluate the rate of clinically significant fistulas (International Study Group on Pancreatic Fistula grade B and grade C) after distal pancreatectomy using a fibrinogen/thrombin-based collagen fleece (TachoComb, TachoSil) with a stapled closure.

Methods: Seventy-five patients underwent distal pancreatectomy at our institution between January 2005 and March 2014.

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We report a case of small intestinal cancer that arose in the upper intestine 16 years after pylorus-preserving pancreaticoduodenectomy( PPPD). An 84-year-old man, who had undergone PPPD for benign biliary tract disease 16 years previously, was found to have a primary small intestinal tumor in the upper intestine by upper gastrointestinal endoscopy, and primary intestinal cancer in the upper intestine was finally diagnosed. We performed partial resection of the upper small intestine and stomach and partial colectomy of the transverse colon to account for direct invasion.

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Background: This study sought to identify and evaluate the risk factors of postoperative complications, prognostic factors, and appropriate surgical strategies in elderly patients undergoing surgery for gastric cancer.

Methods: The medical records of 396 radical gastrectomies conducted from January 2006 to December 2011 were retrospectively reviewed. Surgical results and survival rates were assessed for 60 elderly patients (aged ≥ 80 years) and 336 non-elderly patients (aged < 80 years).

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Background: Perioperative antithrombotic treatment for gastric cancer patients receiving chronic anticoagulation and/or antiplatelet agents requires an understanding of potential bleeding and thromboembolic risks. However, no study has examined the safety aspects of perioperative antithrombotic treatment during radical gastrectomy. This study sought to evaluate postoperative bleeding and thromboembolic complications after radical gastrectomy in patients undergoing perioperative antithrombotic treatment.

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Article Synopsis
  • This study reviewed the clinical importance of hidden metastases in sentinel lymph nodes (SLNs) and non-sentinel lymph nodes (non-SLNs) in patients with early-stage breast cancer.* -
  • Among 109 women who initially showed no SLN involvement, 23% had hidden metastases in SLNs and 16% in non-SLNs, with some correlation to tumor characteristics.* -
  • After an average follow-up of 86 months, patients with or without these hidden metastases had similar disease-free and overall survival rates, indicating no significant impact on prognosis.*
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Article Synopsis
  • DNA double-strand breaks (DSBs) in breast cancer are linked to chemotherapy sensitivity, and proper repair mechanisms determine cell survival.
  • A study on 60 primary breast cancer patients analyzed the formation of DNA repair protein foci before and after treatment with epirubicin and cyclophosphamide.
  • Results showed that high levels of repair protein foci correlating with low tumor response, indicating that evaluating DNA damage response capability could help predict which patients might not respond to chemotherapy.
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It remains to be clarified whether a positive sentinel lymph node biopsy (SLNB) can predict the number of metastatic axillary nodes. This study examined a consecutive series of women with unilateral invasive breast cancer who underwent axillary lymph node dissection after an intra-operative positive SLNB. The numbers of positive and negative sentinel lymph nodes (SLNs) were analyzed for a likelihood of pN1a, pN2a, and pN3a diseases as per the UICC TNM classification.

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Carcinoma with a large central acellular zone (central acellular carcinoma, CAC) and matrix-producing carcinoma (MPC) have been recently noted as basal-like-type breast cancers, but the two entities are often confused. To clarify their histological differences, the histopathological sections of 15 CAC and seven MPC were examined and the following features were compared by reviewing slides: (i) mode of invasion; (ii) alteration of cancer cell adhesion in the transitional area between cellular and acellular zones; (iii) staining of the stromal matrix; (iv) lymphocyte infiltration; and (v) tumor grade. Complete agreement was required between two observers for the assessments of these features.

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Gene-expression profiling classified breast cancer to intrinsic subtypes, including luminal A and B, HER2 positive, normal-breast-like, and basal-like tumors. Of these, basal-like tumors that express basal cytokeratins and that are negative for estrogen receptor alpha, progesterone receptor, and HER2 show the most aggressive phenotype with a poor prognosis. Analyses of clinical samples and basic research indicate that basal-like breast cancer is caused by deficiencies in the breast cancer susceptibility protein, BRCA1.

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Background: Higher standardized uptake value (SUV) detected by 18F-fluorodeoxyglucose positron emission tomography/computed tomography (FDG PET/CT) correlates with proliferation of primary breast cancer. The purpose of this study is to identify specific molecules upregulated in primary breast cancers with a high SUV and to examine their clinical significance.

Methods: We compared mRNA expression profiles between 14 tumors with low SUVs and 24 tumors with high SUVs by cDNA microarray.

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Article Synopsis
  • This study compares the effectiveness of two diagnostic methods—18F-FDG PET/CT and axillary ultrasonography (AUS)—in detecting axillary lymph node (ALN) metastasis in patients with operable breast cancer.
  • In a sample of 183 patients, it was found that while both methods have high specificity, AUS had a slightly higher overall accuracy (85%) compared to 18F-FDG PET/CT (83%).
  • The combination of AUS and PET/CT improved the diagnostic process and helped better identify patients for sentinel node biopsy (SNB), indicating that using both methods together can enhance clinical decision-making for breast cancer treatment.
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Objective: Using integrated 18F-fluorodeoxyglucose positron emission tomography/computed tomography fusion imaging (18F-FDG PET/CT), the clinical significance of 18F-FDG uptake was evaluated in patients with primary breast cancer.

Methods: Clinicopathological correlation with the level of maximum standardized uptake values (SUV) 60 min obtained from preoperative 18F-FDG PET/CT were examined in 152 patients with primary breast cancer. The prognostic impact of the level of SUV was explored using simulated prognosis derived from computed program Adjuvant! in 136 (89%) patients with invasive ductal carcinoma (IDC).

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