Pulmonary function and chest CT abnormalities 3 months after discharge from COVID-19, 2020-2021: A nation-wide multicenter prospective cohort study from the Japanese respiratory society.

Background: No comprehensive analysis of the pulmonary sequelae of coronavirus disease 2019 (COVID-19) in Japan based on respiratory function tests and chest computed tomography (CT) has been reported. We evaluated post-COVID-19 conditions, especially focusing on pulmonary sequelae assessed by pulmonary function tests and chest CT.

Methods: For this prospective cohort study, we enrolled 1069 patients who presented pneumonia at the time of admission in 55 hospitals from February 2020 to September 2021.

Retrospective investigation on diagnostic process for benign asbestos pleural effusion (BAPE) using checklist.

Objectives: In Japan, benign asbestos pleural effusion (BAPE) has been eligible for industrial accident compensation since 2003 as an asbestos-related disease despite the lack of good criteria. We compiled a criteria into a checklist of essential items and for excluding other diseases inducing pleural effusion as a diagnosis process.

Method: Thoracentesis was performed in order to confirm the presence of pleural effusion at the initial diagnosis, and 105 suspected BAPE patients were retrospectively examined.

[Outcome of patients with acute exacerbation of idiopathic interstitial fibrosis (IPF) treated with sivelestat and the prognostic value of serum KL-6 and surfactant protein D].

Idiopathic interstitial fibrosis (IPF) is a chronic, usually fatal lung disease of unknown etiology. There are few specific therapies for acute exacerbation of IPF and factors predicting the onset or severity of this syndrome are not clearly understood. A neutrophil elastase inhibitor, sivelestat (ONO-5046) has been commercially available in Japan since 2002.

[Familial occurrence of bronchiolitis obliterans associated with pulmonary aspergillosis].

We report the familial occurrence of bronchiolitis obliterans (BO) associated with pulmonary aspergillosis. A mother and daughter admitted for dyspnea after taking Sauropus androgynus both had overfiltration of both lungs in chest X-ray and severe obstructive impairment in lung function tests. They were initially diagnosed with severe asthma and treated with high-dose prednisolone (0.

[Familial occurrence of bronchiolitis obliterans associated with sauropus androgynus].

We experienced familial occurrence of bronchiolitis obliterans (BO) associated with Sauropus androgynus. The cases were a mother and daughter and both were admitted to our hospital because of dyspnea after taking Sauropus androgynus. Both cases had hyperinflation of both lungs in chest x-ray and lung function test showed severe obstructive impairment.

[Effectiveness of pneumococcal polysaccharide vaccine in older patients with chronic respiratory diseases].

To evaluate effectiveness of pneumococcal polysaccharide vaccine, we recommended 1378 outpatients aged over 60 with chronic respiratory diseases to be vaccinated from August to October 2002, and 647 patients were vaccinated from August to November 2002. In the 1229 patients without respiratory failure, the incidence of antimicrobial treatment for bacterial respiratory infections in 547 vaccinated patients significantly decreased from 7.9% in the 2001/02 winter season to 5.

[Combination chemotherapy with carboplatin and weekly Paclitaxel in patients with advanced non-small cell lung cancer].

Background: The objective of this study was to evaluate the efficacy and toxicity of carboplatin plus weekly paclitaxel as first-line therapy in patients with advanced non-small cell lung cancer (NSCLC).

Methods: Forty-nine patients were analyzed retrospectively. Every 4 weeks patients received 70 mg/m(2)paclitaxel on days 1, 8, and 15, and AUC 5-6 carboplatin on day 1.

[Gefitinib as a first-line therapy in patients with advanced non-small cell lung cancer].

Background: The objective of this study was to evaluate the efficacy and toxicity of gefitinib as a first-line therapy in patients with advanced non-small cell lung cancer (NSCLC).

Methods: We analyzed 19 patients with advanced NSCLC retrospectively, who were treated with gefitinib as a first-line therapy. These patients were not considered for systemic chemotherapy secondary to co-morbid conditions, poor performance status (PS) or refusal of chemotherapy.

[Eighty cases of chronic respiratory failure treated with home noninvasive positive pressure ventilation].

We studied the clinical features and efficacy of home noninvasive positive pressure ventilation (NPPV) therapy in 80 patients to ascertain its indications and problems. The causes of chronic respiratory failure were restrictive thoracic diseases of post-tuberculosis sequelae (40 cases) and kyphoscoliosis (9 cases), COPD (8 cases), bronchiectasis (7 cases), and interstitial pneumonia (4 cases). One year survival rate of the patients with post-tuberculosis sequelae was 76% and most of the patients who started NPPV at their acute exacerbation died within several months.