Publications by authors named "N Sawabata"

Background: Although pulmonary metastasectomy is a commonly-performed procedure, data are lacking on the feasibility and oncological efficacy of removal of pulmonary metastases from pancreatic cancer. In this study, we retrospectively compared features of pulmonary metastases from pancreatic cancer versus colorectal cancer (CRC, patients with CRC being common candidates for pulmonary metastasectomy) and outcomes of removing such metastases, with our aim being to identify specific features of the former.

Methods: Data on removal of 182 pulmonary metastases (29 from pancreatic and 153 from CRC) performed from January 2013 to April 2024 were included in this analysis.

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Background: Surrogate markers of minimal residual disease primarily include cell-free tumor DNA and circulating tumor cells. Cell-free tumor DNA might aid precise decision-making regarding who should receive adjuvant chemotherapy. However, there are no relevant reports on circulating tumor cells.

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Background: Limited epidemiological information is available on spontaneous pneumothorax. To address this gap, the Japan Society for Pneumothorax and Cystic Lung Disease (JSPCLD) conducted a nationwide retrospective survey to investigate the current epidemiology of spontaneous pneumothorax in Japan.

Methods: In this study, we conducted a retrospective cross-sectional cohort study to demonstrate the clinical features of spontaneous pneumothorax in one year from April 2019 to March 2020, compare patient characteristics and treatment outcomes between primary (PSP) and secondary spontaneous pneumothorax (SSP), and investigate the risk factors associated with in-hospital mortality among patients with SSP.

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Article Synopsis
  • The study investigates the best timing and criteria for treating postoperative air leaks after lung surgery, as practices vary across hospitals.
  • Using data from a 2019 multicenter study, researchers identified 420 patients with air leaks and compared those who received treatment to those who were only monitored.
  • Key findings showed that factors like low body mass index, type of lung surgery, use of fibrin glue, and the severity of air leaks on the first postoperative day can predict the need for intervention, and that a significant number of air leaks resolved spontaneously within a week.
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Background/aim: Circulating tumor cells (CTCs) have garnered attention as biomarkers for therapeutic response and prognosis in malignant neoplasms. Nonetheless, existing literature predominantly relies on surrogate markers of tumor cells or focuses on single-cell CTC, failing to adequately address the challenge of detecting cluster-forming CTCs, which bear considerable prognostic implications. This prospective study aims to validate the efficacy of a novel filtration membrane, namely Soft Micro Pore Filter (S-MPF), for rare cell recovery in detecting CTCs through the analysis of clinical samples.

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