Publications by authors named "Takayuki Ishigaki"

Purpose: Thyroglobulin assay is important to assess the residual or recurrence of differentiated thyroid cancer (DTC). Patients with positive serum thyroglobulin levels after radioactive iodine (RAI) adjuvant therapy could achieve long-term recurrence-free survival (RFS). The patient's prognosis could not be confidently estimated based solely on the evaluation of thyroglobulin levels.

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Background/aim: Symptomatic mediastinal goitre requires surgery and is usually resectable using the cervical approach alone; however, sternotomy is occasionally required. Sternotomy is a highly invasive procedure, and its complications, including mediastinitis and osteomyelitis, can be critical. To date, there have been no reports of non-invasive techniques to avoid sternotomy for mediastinal thyroid tumours.

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Unlabelled: Intracorporeal esophagojejunostomy after total or proximal robot-assisted gastrectomy is technically more demanding than gastroduodenostomy and gastrojejunostomy for distal gastrectomy, as well as laparoscopic surgery. We have established a safe and simple esophagojejunostomy procedure using a liner stapler attached to the Da Vinci Surgical System and a barbed suture device.

Patients And Methods: For esophagojejunostomy after total gastrectomy or proximal gastrectomy with double-tract reconstruction, we choose the "overlap method," in which entry holes were made at the left of the esophageal stump and at 5 cm of the anal side in antimesentric area of the jejunum, followed by anastomosis on the left of the esophagus using SureForm (blue 45 mm) and hand-sewing closure of the common entry hole with V-Loc.

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Background/aim: Since January 2020, coronavirus disease (COVID-19) cases have been confirmed in Japan, and the number of patients with COVID-19 has been increasing. Two emergency declarations have been made previously and one is currently in effect. Based on our experience of a situation that could affect cancer treatment, this study retrospectively examined the correlation between perioperative anticancer therapy and COVID-19 incidence in patients with breast cancer.

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Article Synopsis
  • Differentiated thyroid cancer (DTC) usually has a good prognosis, but bone metastases can lower quality of life and survival rates for patients.
  • A study investigated the effectiveness of CyberKnife stereotactic radiotherapy (SRT) for treating bone metastases in 13 patients over a period from 2013 to 2018, focusing on the response to the treatment and any adverse events that occurred.
  • Results showed that SRT was generally effective, with a 97.1% local control rate after one year, minimal adverse effects, and various responses among the treated lesions, making SRT a viable option for DTC bone metastases.
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Article Synopsis
  • * In a study involving 31 patients with 52 recurrent lesions treated with SRT from 2011 to 2017, the treatment was administered using the CyberKnife system, with follow-up CT scans used to evaluate effectiveness.
  • * Results showed a 3-year local control rate of 84.6%, with various responses observed; SRT was deemed feasible and effective, though one patient experienced a serious adverse event requiring tracheostomy.
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Introduction: The breast is a rare site for metastatic disease. We report a rare case of breast metastasis 9 years after nephrectomy for renal cell carcinoma (RCC) and include a review of the relevant literature.

Presentation Of Case: An 82-year-old woman who developed an RCC underwent left nephrectomy in 2005.

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Primary breast cancer fairly infrequently occurs in ectopic breast tissue, and primary ectopic breast cancer of the vulva is particularly rare. Only 26 cases have been published in the English-language literature, and there has been no report of primary breast carcinoma of the vulva in Japan. We report a rare case of primary ectopic breast cancer of the vulva that was treated with local excision of the vulva and sentinel lymph node biopsy (SLNB).

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The aim of this randomized prospective study was to clarify risks associated with a drain-clamping method using tranexamic acid and carbazochrome sodium sulfonate hydrate after total knee arthroplasty (TKA). Subjects comprised 100 patients scheduled to undergo TKA, randomized into 2 groups: 50 patients received the drain-clamping method using tranexamic acid and carbazochrome sodium sulfonate hydrate and 50 patients received drain-clamping with saline. Although bleeding volume was significantly lower in the group with tranexamic acid and carbazochrome sodium sulfonate hydrate, risk of asymptomatic deep venous thrombosis as detected by ultrasonography was comparable between groups.

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Controversies exist in clinical study concerning the effect of rotating platform on patellar tracking. The aim of this in vivo study was to compare tibial rotation, patellar tracking, and patellofemoral contact stress in mobile and fixed-bearing platform intraoperatively in the same knee. Sixty-six knees of posterior-stabilized total knee prostheses were evaluated using a computed tomography-guided navigation system.

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