Hirotsugu Notsuda

• Professor (Assistant) at Tohoku University

Purpose The expression of PD-L1 is linked to lung cancer severity; however, its prognostic value after resection is unclear. In this study, we investigated its role in resected lung cancers. Methods We analyzed 658 patients with stage pIA–IIIA NSCLC who underwent complete resection. We assessed the PD-L1 expression by stage and its link to cancer...

Background OK-432 (Picibanil), derived from Streptococcus pyogenes type A3, is widely used for both cancer immunotherapy and pleurodesis to manage pleural effusions and air leaks. While its efficacy and safety in pleurodesis are well-established, its potential immunomodulatory effects on long-term survival outcomes in lung cancer patients remain un...

Background Lung transplantation is a vital option for patients with end-stage lung disease. However, it faces a significant challenge due to the shortage of compatible donors, which particularly affects individuals with small chest cavities and pediatric patients. The novel approach of cadaveric lobar lung transplantation is a promising solution to...

This single-arm multi-institutional prospective study aimed to evaluate the 10-year outcomes of sublobar resection for small-sized ground-glass opacity-dominant lung cancer. Among 73 patients prospectively enrolled from 13 institutions between November 2006 and April 2012, 53 ground-glass opacity-dominant lung cancer patients underwent sublobar res...

Purpose Nutritional scores have been reported to be useful prognostic factors for various cancers. This study evaluated the usefulness of the preoperative controlling nutritional status (CONUT) score as a predictor of recurrence of non-small cell lung cancer (NSCLC). Methods The present study included 422 patients with stage I–IIIA NSCLC who under...

Purpose This single-institution retrospective cohort study was conducted to assess the prognostic significance of perioperative changes in the prognostic nutritional index (PNI) in patients who underwent surgery for non-small cell lung cancer (NSCLC). Methods Clinicopathological data were collected from 441 patients who underwent lobectomy for NSC...

Background Interstitial lung disease (ILD) represents a heterogeneous group of lung disorders characterized by fibrotic lung tissue changes. In regions with severe donor shortages, single-lung transplantation (SLTx) is often preferred over bilateral lung transplantation for advanced ILD. However, temporal changes and complications in the retained n...

Purposes Delayed chest closure (DCC) is a widely accepted procedure in the context of lung transplantation (LTx); yet there are few reports detailing its long-term survival and clinical outcomes. Methods We reviewed the medical records of recipients who underwent deceased-donor lung transplantation (LTx) at Tohoku University Hospital. Long-term su...

Non-islet cell tumor hypoglycemia (NICTH) is one of the paraneoplastic syndromes manifesting severe hypoglycemia caused by aberrant production of high-molecular-weight insulin-like growth factor 2 (big-IGF2). Two surgical cases of extremely large thoracic solitary fibrous tumors (SFT) with unusual history of NICTH are presented. One case manifested...

To investigate the surgical outcomes and postoperative survival prognostic factors of intractable secondary spontaneous pneumothorax. A total of 95 patients who underwent thoracoscopic surgery for intractable secondary spontaneous pneumothorax between April 2010 and March 2020 were included in this study. These patients were classified into interst...

This study aims to compare the post-transplant survival of untwinned single lung transplantation (SLT) to twinned SLT. In untwinned SLT, the contralateral lung is judged unsuitable for transplantation and might affect the lung graft within the donor body and recipient survival after SLT. A retrospective analysis was conducted on 84 SLT recipients a...

Background Systemic-to-pulmonary artery shunt (SPAS) is a rare condition that can occur as a result of congenital heart disease or chronic pulmonary inflammation, occasionally leading to life-threatening hemoptysis. Computed tomography (CT) imaging is crucial in the diagnosis of SPAS, and the optimal management approach for SPAS remains uncertain....

Background The ADAURA trial reported that osimertinib improved overall survival (OS) as an adjuvant chemotherapy for pathological stage IB–IIIA epidermal growth factor receptor (EGFR) mutant lung cancer compared with a placebo. Currently, platinum-based adjuvant chemotherapy is the standard treatment for patients with or without EGFR mutations. Thi...

Whole lung engineering and the transplantation of its products is an ambitious goal and ultimately a viable solution for alleviating the donor-shortage crisis for lung transplants. There are several limitations currently impeding progress in the field with a major obstacle being efficient revascularization of decellularized scaffolds, which require...

Objectives: Third-generation epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors were recently reported to be effective as adjuvant therapy for resected lung adenocarcinoma (ADC) harbouring common EGFR mutations. However, whether the EGFR mutation is a direct risk factor for postoperative recurrence remains unknown. Therefore, we co...

Background: The number of robotic-assisted thoracoscopic surgeries (RATSs) performed worldwide has been increasing rapidly in recent years. The purpose of the present study was to compare the surgical outcomes between video-assisted thoracoscopic surgery (VATS) and those of RATS in right upper lobectomy (RUL) with mediastinal nodal dissection, focu...

Background: Leukocyte immunoglobulin-like receptor subfamily B member 4 (LILRB4/ILT3) is an up-and-coming molecule that promotes immune evasion. We have previously reported that LILRB4 facilitates myeloid-derived suppressor cells (MDSCs)-mediated tumor metastasis in mice. This study aimed to investigate the impact of the LILRB4 expression levels o...

In this study, we sought to elucidate the roles of the interleukin (IL)-32β and IL-32γ in mesothelioma cell growth, and vascular endothelial growth factor (VEGF)-A and CXCL8 expression. IL-32 elicited a growth-promoting effect against one of the six mesotheliomas lines and exerted diverse regulatory functions in VEGF-A and CXCL8 secretion from meso...

Background: Aortopulmonary mediastinal paragangliomas are rare. Complete resection of the tumor is desirable regardless of tumor size in view of the risk of sudden death induced by adjacent organ compression and poor prognosis after partial resection or untreated observation. Due to the hypervascularity of the tumor, the risk of intraoperative ble...

As shown in our previous studies, the intratracheal-administration of stanniocalcin-1 (STC1) ameliorates pulmonary fibrosis by reducing oxidative and endoplasmic reticulum stress through the uncoupling of respiration in a bleomycin (BLM)-treated mouse model. However, the overall effect of STC1 on metabolism was not examined. Therefore, we first con...

The gastrointestinal tract is one of the locations that lung cancers cause metastasis. A 70-year-old male underwent right lower lobectomy while presenting fecal occult blood with a preoperative colonoscopy showing colon polyps as the cause. The pathological diagnosis was pleomorphic carcinoma of the lung, with stage pT3N0M0. Seven months after the...

The patient was a 41-year-old man. He was diagnosed with pleurisy and came to our hospital. The pleural effusion and pleurisy remained even after administration of sufficient doses of antibiotics. A thorough examination revealed an anterior mediastinal tumor. Six months later, pericarditis also developed. Autoimmune diseases, infections, and malign...

Background As lung transplantation (LTX) is a valuable treatment procedure for end-stage pulmonary disease, delayed referral to a transplant center should be avoided. We aimed to conduct a single-center analysis of the survival time after listing for LTX and waitlist mortality in each disease category in a Japanese population. Methods We included...

Neurological paraneoplastic syndrome is a relatively rare condition in patients with malignant tumors. Recently, it has been reported that anti-Aquaporin 4 (AQP4) antibody is highly specific for neuromyelitis optica. The patient was a 76-year-old man. He underwent right upper lobectomy for squamous cell carcinoma of the lung. Although the immediate...

Introduction: Mutations in BRAF occur in 2-4% of lung adenocarcinoma (LUAD) patients. Combination dabrafenib/trametinib or single-agent vemurafenib is approved only for patients with cancers driven by the V600E BRAF mutation. Targeted therapy is not currently available for patients harboring non-V600 BRAF mutations. Methods: An LUAD patient-deri...

Background While lung transplant (LTX) can be an effective therapy to provide the survival benefit in selected populations, post-transplant outcome in LTX recipients with bronchiectasis other than cystic fibrosis (CF) has been less studied. Pseudomonas aeruginosa , often associated with exacerbations in bronchiectasis, is the most common micro-orga...

In recent years, with the improvement of diagnostic techniques and treatment outcomes, the number of lung cancer cases after esophageal cancer treatment has been increasing. In general, severe adhesions are expected in the right lung, during lung resection after esophageal cancer surgery. In this study, we reviewed intraoperative findings of lung r...

Background While lung transplant (LTX) can be an effective therapy to provide the survival benefit in selected populations, post-transplant outcome in LTX recipients with bronchiectasis other than cystic fibrosis (CF) has been less studied. Pseudomonas aeruginosa, often associated with exacerbations in bronchiectasis, is the most common micro-organ...

The incidence of postoperative pulmonary torsion is not frequent but it has a high mortality rate once it occurs, and prompt diagnosis and treatment are required. From past reports, it is considered effective to point out disruption of pulmonary blood flow by contrast-enhanced computed tomography (CT) examination for diagnosis. However, the compari...

Background: The present study aimed to investigate the correlation between preoperative 2-deoxy-2-[18F]fluoro-d-glucose (18F-FDG) PET/CT findings and short-term survival in lung cancer patients with idiopathic interstitial pneumonia (IIP). Methods: We retrospectively reviewed the data of 425 patients who underwent lung resection for non-small ce...

Background. Acute kidney injury (AKI) is a common complication after lung transplant (LTx), and continuous renal replacement therapy (CRRT) is increasingly of use to critically ill patients who have developed AKI. However, the optimal timing or threshold of kidney impairment for which to commence CRRT after LTx has been uncertain. There has also be...

Purpose Non–small cell lung cancer (NSCLC) is the most common cause of cancer-related deaths worldwide. There is an unmet need to develop novel clinically relevant models of NSCLC to accelerate identification of drug targets and our understanding of the disease. Experimental Design Thirty surgically resected NSCLC primary patient tissue and 35 pre...

A 60-year-old man consulted a clinic complains of sore throat. Squamous cell carcinoma of the hypopharynx and adenocarcinoma of the stomach were pointed out and he was refered to our hospital. As a result of detailed systemic examination, squamous cell carcinoma of the esophagus and squamous cell carcinoma of the right lung were also pointed out, w...

PurposeThe purpose of this study was to assess the usefulness of positron emission tomography/computed tomography (PET/CT) in the differential diagnosis of anterior mediastinal tumors. MethodsA total of 94 patients with anterior mediastinal masses or nodules (male, n = 41; female, n = 53; age, 17–84 years) were retrospectively evaluated. All patien...

The need for effective treatment of KRAS‑mutant lung cancer is an emerging issue. Rho GTPase‑activating protein 35 (ARHGAP35) is reported to be a possible molecular target for lung adenocarcinoma. We investigated the effect of long‑term ARHGAP35 suppression on the proliferation, migration and molecular dynamics of lung adenocarcinomas harboring KRA...

Purpose: Using a rat model of allograft lung transplantation, we investigated the effectiveness of mesenchymal stromal cells (MSCs) as prophylactic and therapeutic agents against the acute rejection of lung grafts. Methods: Lung grafts were harvested from donor rats and transplanted orthotopically into major histocompatibility complex-mismatched...