Publications by authors named "Ohara G"

Unlabelled: Rhizobia are soil bacteria capable of establishing symbiosis within legume root nodules, where they reduce atmospheric N into ammonia and supply it to the plant for growth. Australian soils often lack rhizobia compatible with introduced agricultural legumes, so inoculation with exotic strains has become a common practice for over 50 years. While extensive research has assessed the N-fixing capabilities of these inoculants, their genomics, taxonomy, and core and accessory gene phylogeny are poorly characterized.

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Background: Bronchial cysts (BCs) can be difficult to diagnose because of non-specific site of occurrence and heterogeneous density of cyst content in some patients. We present herein a BC case with such nonspecific findings.

Case: A 23-year-old man referred to our hospital because of an abnormal chest image during a mass-screening.

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Introduction And Objectives: The optimal antithrombotic therapy (AT) after left atrial appendage closure (LAAC) is debated. We assessed the impact of intensive vs nonintensive AT on the incidence of device-related thrombus (DRT) based on whether the device implantation was classified as optimal or suboptimal.

Methods: This study included patients who underwent successful LAAC in 9 centers.

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  • Metatarsal fractures, particularly affecting the fifth metatarsal, are common injuries, making up 5-6% of outpatient fractures, with zone 2 fractures—specifically Jones fractures—being difficult to manage due to poor blood supply and higher nonunion rates.
  • Surgical treatment, particularly open reduction and internal fixation (ORIF), is preferred for Jones fractures, as it leads to better healing rates compared to conservative treatment methods.
  • The surgical technique involves careful anatomical marking and using a guidewire for screw placement to compress the fracture, followed by a recovery period that includes non-weight-bearing and gradual weight-bearing activities.*
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Eosinophilia is a common finding in returning travellers, migrants and other travelling groups. In this setting it often indicates an underlying helminth infection. Infections associated with eosinophilia are frequently either asymptomatic or associated with non-specific symptoms but some can cause severe disease.

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Background: Immune checkpoint inhibitor (ICI) therapy has brought about a revolutionary advance in the treatment of advanced non-small cell lung cancer (NSCLC). Not a few patients with NSCLC have comorbid diseases. In patients who already have impaired renal function, particular attention must be paid to renal toxicity, a rare immune-related adverse events.

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Importance: The emergence of novel programming guidelines that reduce premature and inappropriate therapies along with the availability of new implantable cardioverter-defibrillator (ICD) technologies lacking traditional endocardial antitachycardia pacing (ATP) capabilities requires the reevaluation of ATP as a first strategy in terminating fast ventricular tachycardias (VTs) in primary prevention ICD recipients.

Objective: To assess the role of ATP in terminating fast VTs in primary prevention ICD recipients with contemporary programming.

Design, Setting, And Participants: This global, prospective, double-blind, randomized clinical trial had an equivalence design with a relative margin of 35%.

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Head and neck squamous cell carcinoma (HNSCC) has a low five-year survival rate because of its high rate of recurrence and metastasis. After surgical resection or radiation, the main treatments for HNSCC, patients sometimes experience functional or aesthetic disorders. Therefore, there is a great demand for the development of non-surgical treatment strategies to improve clinical outcomes and patients' quality of life.

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Infectious disease physicians in England have been diagnosing and managing occasional cases of viral hemorrhagic fever since 1971, including the United Kingdom's first case of Ebola virus disease in 1976. Specialist isolation facilities to provide safe and effective care have been present since that time. Following the emergence of Middle East respiratory syndrome (MERS) in 2012, and the avian influenza A (H7N9) outbreak in 2013, and the 2014-2016 Ebola virus disease outbreak in West Africa, clinical and public health preparedness and response pathways in England have been strengthened for these types of diseases, now called high-consequence infectious diseases (HCIDs).

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Pseudochylothorax is a rare disease entity. It is characterized by a milky white pleural fluid with a cholesterol/triglyceride ratio >1. According to published reports, most patients had associated diseases, including rheumatoid arthritis and tuberculosis, with only one patient having oropharynx carcinoma associated with lung metastases.

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  • Percutaneous left atrial appendage closure (LAAC) is a procedure to prevent blood clots in patients with nonvalvular atrial fibrillation, but there is limited information on readmission rates following the procedure.
  • A study of 1419 patients found that 18.1% were readmitted within a year, primarily due to bleeding and heart failure, with specific health conditions increasing the likelihood of readmission.
  • Both early and late readmissions were linked to a higher risk of mortality within two years, highlighting the importance of managing patient health before and after LAAC.
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  • Device-related thrombosis (DRT) occurs frequently after left atrial appendage closure (LAAC), with notable differences in diagnosis timing and outcomes between men and women.
  • Women make up 34.7% of DRT patients in the study and tend to be older and have fewer comorbidities compared to men, but DRT in women is diagnosed significantly later.
  • Both genders have similar treatment outcomes and overall mortality rates, indicating that treatment strategies are equally effective regardless of sex.
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  • The study examined early nonprocedural bleeding in patients who underwent left atrial appendage occlusion (LAAO), finding that about 7% experienced bleeding unrelated to the procedure within three months, with more than half categorized as major bleeding.
  • Key predictors for early bleeding included receiving dual antiplatelet therapy at discharge, a history of gastrointestinal bleeding, and multiple previous bleeding episodes.
  • Furthermore, early nonprocedural bleeding was linked to a higher risk of all-cause mortality, emphasizing the serious implications of such events, regardless of their severity.
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: Gender-affirming mastectomy (GAM) improves the psychosocial functioning and quality of life of transgender and non-binary (TGNB) individuals. However, the perioperative period is often marked by emotional stress, concerns about surgical outcomes, and physical discomfort. While inpatient procedures provide multiple opportunities to engage with and educate patients, outpatient surgeries, such as GAM, pose a unique challenge as patients are followed for <24 h postoperatively.

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  • People with HIV are more likely to experience severe cases of mpox, including serious eye issues like keratitis and vision loss.
  • Tecovirimat is the main antiviral treatment for severe mpox, but there's not much data on how well it works for eye-related cases.
  • This report discusses a patient with advanced HIV who suffered from a serious eye infection due to mpox, needing a long treatment with tecovirimat because the virus lingered for almost 5 months.
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Superior vena cava obstruction (SVCO) is an oncological emergency and can often be linked to an underlying lung malignancy. Due to the potential life-threatening risks associated with SVCO, it necessitates urgent diagnosis and management. In this report, we discuss 3 case studies where the use of ultrasound-guided supraclavicular lymph node biopsy was used to obtain a biopsy from patients with SVCO, followed by rapid on-site evaluation (ROSE).

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Background: High-consequence infectious diseases (HCIDs) represent a group of acute infectious diseases with the potential to impact healthcare systems and public health profoundly. Effective management requires a system-based strategy focused on early detection, initiation of infection prevention and control measures, and appropriate use of personal protective equipment (PPE). Inadequate training in the safe use of HCID PPE, and lack of familiarity with key processes such as HCID waste and spills management, exacerbates the risk posed to healthcare workers (HCWs).

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Systemic emboli are not uncommon in patients with advanced non-small cell lung cancer. The present study describes a rare case of long-term control in a patient with lung adenocarcinoma, nonbacterial thrombotic endocarditis and multiple systemic emboli. Briefly, a 56-year-old man was diagnosed with metastatic lung adenocarcinoma and was treated with pembrolizumab, which was discontinued due to the appearance of a pulmonary immune-related adverse event.

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This paper proposes a novel concept of "stereohaptic vibration," which employs distributed vibration to localize vibration sources outside the body. Inspired by amplitude panning, a stereophonic sound display technique, we developed a method to localize a virtual vibration source (VVS) by polarizing the perceived intensity of multiple vibration stimuli to a specific orientation. Considering the perceptual characteristics of high-frequency vibration, the perceived intensity of the VVS was allocated to multiple vibrators according to the distance and direction of the target.

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We describe herein two patients with epidermal growth factor receptor (EGFR) mutated non-small cell lung cancer (NSCLC) who developed cancer-associated ischemic stroke (CAIS), infarction caused by thromboembolism in the central nervous system. Case 1 was a 63-year-old man with Exon 19 deletion type EGFR mutated lung adenocarcinoma presenting with CAIS. Case 2 was a 71-year-old woman with Exon 21 L858R type EGFR mutated lung adenocarcinoma who developed CAIS during chemotherapy after EGFR-tyrosine kinase inhibitor (TKI) resistance.

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Background/aim: Atezolizumab is a monoclonal antibody that targets programmed death-ligand 1 (PD-L1) expressed on cancer cells derived from various organs and antigen-presenting cells and is currently commonly used in combination with chemotherapy. We conducted a study to clarify the current status of response to atezolizumab monotherapy in clinical practice and clarify the factors that contribute to long-term response and survival.

Patients And Methods: We conducted a retrospective review of patients with advanced non-small cell lung cancer (NSCLC) treated with atezolizumab monotherapy from April 2018 to March 2023 at 11 Hospitals.

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Monkeypox is a viral infection historically rarely seen in humans, but currently the focus of international attention due to a multi-country outbreak outside endemic countries of Central and West Africa, where cases are typically confined. Perianal pain and lesions have recently been recognised as a feature of monkeypox. We present a case series of the imaging findings of patients with monkeypox, including active proctitis, anal canal inflammation, and perianal inflammation.

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Background: Device-related thrombus (DRT) remains one of the main concerns after left atrial appendage occlusion (LAAO). Several risk factors have been proposed, but most cannot be modulated. A modifiable factor such as device implantation depth is a potential target to adjust the risk for DRT.

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