Publications by authors named "Mitsuaki Kawashima"

Article Synopsis
  • The study explores how respiratory sarcopenia, or reduced respiratory muscle strength, can help improve risk assessment for patients undergoing surgery for non-small cell lung cancer (NSCLC).
  • Researchers analyzed data from 806 patients in Tokyo who had surgical treatment for NSCLC between 2009 and 2018, focusing on outcomes based on their levels of respiratory strength and muscle mass.
  • Findings indicate that respiratory strength is a better predictor of patient outcomes than the traditional metric of muscle radiodensity, suggesting that factoring in respiratory sarcopenia could enhance postoperative care strategies.
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Purpose: While patients with autoimmune diseases (ADs) are at high risk for developing specific malignancies, including lung cancer, ADs may protect against the development of cancer through increased immune cell activity in tumors. This study aimed to investigate whether the presence of ADs affects surgical outcomes and survival after surgery for lung cancer.

Methods: The medical records of 1236 patients who underwent surgery for non-small cell lung cancer between 2007 and 2018 were retrospectively reviewed.

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Background: Baseline lung allograft dysfunction (BLAD) refers to a condition in which a lung transplant recipient does not achieve normal pulmonary function (i.e., forced expiratory volume in 1 s or forced vital capacity of <80% of predicted values).

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Objectives: Dual-lumen cannulas for veno-venous (VV) extracorporeal membrane oxygenation (ECMO) support are typically inserted in the right internal jugular vein (RIJV); however, some scenarios can make this venous route inaccessible. This multicentre case series aims to evaluate if single-site cannulation using an alternative venous access is safe and feasible in patients with an inaccessible RIJV.

Methods: We performed a multi-institutional retrospective analysis including high-volume ECMO centres with substantial experience in dual-lumen cannulation (DLC) (defined as >10 DLC per year).

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Although cytomegalovirus (CMV) viremia/DNAemia has been associated with reduced survival after lung transplantation, its association with chronic lung allograft dysfunction (CLAD) and its phenotypes is unclear. We hypothesized that, in a modern era of CMV prophylaxis, CMV DNAemia would still remain associated with death, but also represent a risk factor for CLAD and specifically restrictive allograft syndrome (RAS)/mixed phenotype. This was a single-center retrospective cohort study of all consecutive adult, first, bilateral-/single-lung transplants done between 2010-2016, consisting of 668 patients.

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Background: Airway epithelial injury is thought to be a key event in the pathogenesis of chronic lung allograft dysfunction (CLAD). We investigated whether markers of epithelial activity and injury in bronchoalveolar lavage fluid (BAL) correlate with CLAD diagnosis and major CLAD phenotypes: bronchiolitis obliterans syndrome (BOS) vs restrictive allograft syndrome (RAS)-related phenotypes (including RAS, mixed phenotype, and all other patients with RAS-like opacities).

Methods: CLAD status and phenotypes were retrospectively determined in a cohort of all consecutive adult, first, bilateral lung transplants performed 2010-2015, with available BAL samples.

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Background: Our recent work has challenged 4°C as an optimal lung preservation temperature by showing storage at 10°C to allow for the extension of preservation periods. Despite these findings, the impact of 10°C storage has not been evaluated in the setting of injured donor lungs.

Methods: Aspiration injury was created through bronchoscopic delivery of gastric juice (pH: 1.

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Background: Cold static preservation (CSP) at higher temperatures (10°C) has been recently shown as an optimal strategy up to 24-36h of preservation. Here, we hypothesized that alternating 10°C static storage with cycles of normothermic ex vivo lung perfusion (EVLP) would provide conditions for cellular "recharge", allowing for multi-day lung preservation.

Methods: Donor lungs from male Yorkshire pigs were preserved using 10°C CSP with two cycles of 4h EVLP.

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Background: Phenotyping chronic lung allograft dysfunction (CLAD) in single lung transplant (SLTX) is challenging, due to the native lung contribution to pulmonary function test (PFT). We aimed to assess the applicability and prognostic performance of International Society for Heart and Lung Transplantation (ISHLT) classification in SLTX.

Methods: In this retrospective study of adult, first, SLTX performed 2009-2017, patients with persistent drop in FEV1≥20% were assessed by 2 independent adjudicators to determine CLAD status and phenotype.

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Over 2.5% of deaths in Canada occur as a result from medical assisting in dying (MAID), and a subset of these deaths result in organ donation. However, detailed outcomes of lung transplant recipients using these donors is lacking.

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Definitions for chronic lung allograft dysfunction (CLAD) phenotypes were recently revised (2019 ISHLT consensus). Post-CLAD onset phenotype transition may occur as a result of change in obstruction, restriction, or RAS-like opacities (RLO). We aimed to assess the prevalence and prognostic implications of these transitions.

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Effective treatment of respiratory infections continues to be a major challenge. In high doses (≥160 ppm), inhaled Nitric Oxide (iNO) has been shown to act as a broad-spectrum antimicrobial agent, including its efficacy in vitro for coronavirus family. However, the safety of prolonged in vivo implementation of high-dose iNO therapy has not been studied.

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Background: Micronodular thymoma with lymphoid stroma (MNT) is a rare subtype of thymic neoplasms. Therefore, clinical guidelines, histopathological diagnostic criteria, prognostic factors, and therapeutic regimens have not been established.

Case Presentation: A 69-year-old woman was admitted to our hospital because of an abnormal shadow detected by chest radiography.

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Article Synopsis
  • - The study examines chronic lung allograft dysfunction (CLAD) by validating a new classification system and exploring patients who don't fit defined sub-categories, focusing on how this can improve understanding and treatment.
  • - Conducted at a single center, the study involved 174 lung transplant patients from 2010 to 2015, identifying categories like bronchiolitis obliterans syndrome (BOS) and restrictive allograft syndrome (RAS), with many patients remaining unclassified.
  • - Results indicate that patients with BOS had better survival rates than those with RAS or mixed phenotypes, while chest imaging can help assess risk for unclassified patients, providing valuable insights for patient management post-CLAD.
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Long-term survival after lung transplantation remains suboptimal due to chronic lung allograft dysfunction (CLAD), a progressive scarring process affecting the graft. Although anti-donor alloimmunity is central to the pathogenesis of CLAD, its underlying mechanisms are not fully elucidated and it is neither preventable nor treatable using currently available immunosuppression. Recent evidence has shown that innate immune stimuli are fundamental to the development of CLAD.

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Background: Fibrin glue effectively controls air leakage in lung surgery; however, allogenic fibrin glue cannot eliminate the risks of infection and allergy despite current sterilization methods. Autologous fibrin glue (AFG) could be a good alternative, but is not commonly used worldwide because of its limited availability and lack of evidence. Herein, we report clinical outcomes of AFG in thoracic surgery.

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A red rash developed on both hands of a 54-year-old man. At age 56, he was admitted to our hospital because of an abnormal shadow detected by chest roentgenogram. A detailed examination revealed an anterior mediastinal tumor and dermatomyositis.

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Background: This study aimed to analyze cause-specific mortality in lung cancer patients over 80 years old undergoing surgery.

Methods: This retrospective, multi-institutional analysis included patients aged ≥ 80 years who underwent radical surgery for primary lung cancer from January 1998 to December 2015. Preoperative clinical data, surgical results, survival, and cause of death were evaluated.

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