Publications by authors named "Shundo Y"

Delayed chest closure (DCC) is a useful technique in cases with oversized lung grafts, pulmonary edema, and hemodynamic instability. Anatomically oversized lung grafts are potentially problematic in pediatric living-donor lobar lung transplantation (LDLLT), but rarely in an adult LDLLT. We experienced a case of anatomically oversized grafts in the adult LDLLT requiring DCC, although the grafts provided only 57.

View Article and Find Full Text PDF

complex (MAC) pulmonary disease presents significant therapeutic challenges in respiratory medicine. While amikacin liposome inhalation suspension (ALIS) has emerged as a promising option for treatment-refractory cases, some patients continue to show persistence of infection. We report a case of a 64-year-old male with MAC pulmonary disease who demonstrated a remarkable clinical response to sitafloxacin (STFX) after failing both guideline-based therapy and subsequent ALIS treatment.

View Article and Find Full Text PDF

typically causes mild respiratory infections but can rarely lead to severe complications. We report a case of a 43-year-old immunocompetent male who presented with progressive dyspnea and respiratory failure with bilateral pulmonary infiltrates, refractory to outpatient treatment with azithromycin, ceftriaxone, and levofloxacin. Bronchoscopy revealed multiple white plaques in the trachea and diffuse alveolar hemorrhage.

View Article and Find Full Text PDF

Accurate prognostic awareness (PA) and knowledge of the disease are critical for decision-making regarding treatment options, advance care planning, and end-of-life care. However, they have not been investigated in patients with interstitial lung disease (ILD). To determine the prevalence of patients with ILD who have accurate PA and/or knowledge of acute exacerbation and whether accurate PA is associated with end-of-life medical interventions and quality of dying and death.

View Article and Find Full Text PDF
Article Synopsis
  • A study was conducted to investigate the safety and effectiveness of docetaxel/ramucirumab (DOC/RAM) therapy in patients with advanced non-small cell lung cancer (NSCLC) who also had interstitial lung disease (ILD).
  • The study found that 25% of patients with pre-existing ILD developed DOC/RAM-induced interstitial pneumonia, while no patients without ILD experienced this condition.
  • Despite the increased incidence of pneumonia in those with ILD, the treatment did not significantly impact the overall treatment outcomes like objective response rate, progression-free survival, or overall survival.
View Article and Find Full Text PDF

SMARCA4-deficient undifferentiated tumor (SMARCA4-UT) is a rare and aggressive malignancy characterized by the loss of SMARCA4 protein expression. It typically affects middle-aged male smokers and has a poor prognosis due to its rapid progression and metastatic potential. This case report presents a 73-year-old male diagnosed with a thoracic SMARCA4-UT.

View Article and Find Full Text PDF

Platypnea-orthodeoxia syndrome (POS) is a rare condition characterized by dyspnea and oxygen desaturation that worsens in the upright position and improves when lying down. We report the case of a 67-year-old male who presented with a 14-month history of dyspnea in the sitting/standing position. Despite treatment for suspected asthma, his symptoms persisted, and he was referred to our hospital for further evaluation.

View Article and Find Full Text PDF

Background/aim: Nivolumab and ipilimumab combination therapy has been extensively explored for the treatment of advanced non-small-cell lung cancer (NSCLC) through the pivotal phase III trials CheckMate 227 and CheckMate 9LA. However, the relationship between immune-related adverse events (irAEs) and the effectiveness of nivolumab plus ipilimumab-based therapy in a real-world clinical setting remains uncertain.

Patients And Methods: We performed a retrospective analysis of 28 patients with advanced or recurrent NSCLC who underwent treatment with nivolumab plus ipilimumab, with or without platinum-doublet chemotherapy, from February 2021 to January 2023.

View Article and Find Full Text PDF

The generation of hydrogen as a clean energy carrier by photocatalysis, as a zero-emission technology, is of significant scientific and industrial interest. However, the main drawback of photocatalytic hydrogen generation from water splitting is its low efficiency compared to traditional chemical or electrochemical methods. Zinc oxide (ZnO) with the wurtzite phase is one of the most investigated photocatalysts for hydrogen production, but its activity still needs to be improved.

View Article and Find Full Text PDF
Article Synopsis
  • Letermovir, originally approved for CMV prevention in stem-cell transplants, is being explored for off-label use in lung-transplant recipients due to their high risk of CMV infections.
  • A retrospective study at Tohoku University Hospital from 2000 to 2023 analyzed letermovir's effectiveness, identifying cases that showed positive outcomes in managing side effects and preventing CMV replication.
  • The findings and literature review suggest letermovir is a safe and promising prophylactic option for lung-transplant patients who cannot tolerate valganciclovir, though its integration into treatment protocols should be approached cautiously.
View Article and Find Full Text PDF

is an intracellular proliferating pathogen that causes chronic refractory respiratory infection. Although apoptosis induced by has been reported in vitro, the role of apoptosis against infection in vivo remains unclear. Here, we investigated the role of apoptosis in mouse models of infection.

View Article and Find Full Text PDF

Background: To date, reports addressing the antibody response following mRNA SARS-CoV-2 vaccination in lung transplant (LTX) recipients are limited. Thus, the aim of this clinical study was to investigate the efficacy and safety of the vaccines in LTX recipients compared to controls.

Methods: An open-label, nonrandomized prospective study was conducted at Tohoku University Hospital.

View Article and Find Full Text PDF

Cytomegalovirus( CMV) infection is one of the most common complications after lung transplantation which affects the morbidity and mortality. The transplantation society international CMV consensus group published the consensus guideline on the management, prevention, treatment and diagnostics of CMV infection. On the other hand, each lung transplant program in Japan manages the CMV infection in the lung transplant recipients according to the unique protocol.

View Article and Find Full Text PDF

Non-platinum group metal (non-PGM) catalysts for the oxygen reduction reaction (ORR) are set to reduce the cost of polymer electrolyte membrane fuel cells (PEFCs) by replacing platinum at the cathode. We previously developed unique nitrogen-doped carbon foams by template-free pyrolysis of alkoxide powders synthesized using a high temperature and high pressure solvothermal reaction. These were shown to be effective ORR electrocatalysts in alkaline media.

View Article and Find Full Text PDF

Background: There has been no large-scale observational study examining the association between chronic obstructive pulmonary disease (COPD) or airflow limitation and carotid atherosclerosis in the general population across a wide range of generations in Asia. In the present study we assessed the association between airflow limitation and carotid intima-media thickness (IMT) in a general Japanese population, with consideration of a comprehensive array of cardiovascular risk factors.

Methods and results: In all, 2,099 community-dwelling Japanese subjects were included in the study.

View Article and Find Full Text PDF

The present case is 74 years old man who was hospitalized to treat lung tumor suspected of malignancy. Because the superior vena cava thrombus was also revealed by radiological examination, he was performed lobectomy and thrombectomy at the same time. He has past history of intravenous hyperalimentation for 15 days, and we supposed the event to be the cause of the thrombus.

View Article and Find Full Text PDF

Pulmonary adenosquamous carcinoma is a rare malignant tumor as defined by the Japan Lung Cancer Society Classification. At our institution, of the 1,023 patients who underwent resection for primary lung cancer, 42 (4.0%) had adenosquamous carcinoma.

View Article and Find Full Text PDF

The case was 74-year-old woman. A tumor at the aortic window was found while retrieving the cause of the hoarseness, and the surgical biopsy was performed. The diagnosis of the leiomyosarcoma was obtained by pathology, and it probably originated from the middle mediastinal tissue.

View Article and Find Full Text PDF

Background: A radical resection is considered to be the most effective treatment for resectable non-small cell lung cancer. However, even when resected in early stages (T1aN0, T1bN0) up to 20% of patients will experience recurrence. The aim of this retrospective study was to evaluate the prognostic influence of lymphatic vessel invasion (LVI) in stage IA adenocarcinoma patients.

View Article and Find Full Text PDF

Aim: Nonalcoholic fatty liver disease (NAFLD) is one of the most frequent causes of liver dysfunction and its incidence has increased markedly. However, the mechanisms involved in the pathogenesis of NAFLD in humans have not been thoroughly investigated. Sterol regulatory element binding protein (SREBP)-1c and carbohydrate responsive element binding protein (ChREBP) are transcriptional factors that regulate the expression of lipogenic genes, including acetyl-CoA carboxylases (ACCs) and fatty acid synthase (FAS).

View Article and Find Full Text PDF

The prognosis of the lung cancer patients with aortic invasion is thought to be very poor in general. Thoracic aorta resection and reconstruction was performed in 6 patients, aortic arch in 2, descending aorta in 4. An intraoperative and a postoperative major complication occurred in each 1 patient.

View Article and Find Full Text PDF

The prognosis of the lung cancer patients with malignant pleural effusion is extremely poor. Intrapleural perfusion hyperthermo-chemotherapy for the treatment of malignant pleural effusion was performed in 120 lung cancer patients and showed better prognosis than conventional treatment. After successful local control by hyperthermo-chemotherapy, extrapleural pneumonectomy was performed in 8 patients with clinical N 0 or N 1 and M 0 lung cancer.

View Article and Find Full Text PDF

A 76-year-old woman underwent a left pneumonectomy for a primary adenocarcinoma. On the fourth postoperative day, when walking to the toilet, she suddenly developed syncope followed by dyspnea and cardiopulmonary arrest. Although we performed cardiopulmonary resusciation, she died 1 hour later.

View Article and Find Full Text PDF

A 66-year-old woman admitted our hospital due to an abnormal shadow in the right lung field on a routine chest X-ray film. Preoperative diagnosis was not made, we didn't have correct diagnosis of benign or malignancy by intraoperative frozen-section specimen, so segmentectomy without lymph nodes dissection was performed. The histopathological diagnosis was glandular papilloma.

View Article and Find Full Text PDF