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Find video protocols related to scientific articles indexed in Pubmed.
[Clinical characteristics of pulmonary Mycobacterium avium complex infection complicated with lung cancer].
Kekkaku
PUBLISHED: 10-07-2014
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The coexistence of lung cancer and pulmonary Mycobacterium avium complex (MAC) infection has not been well reported. This study illustrated the clinical characteristics of pulmonary MAC infections complicated with lung cancer.
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[Comparison of biomarkers of pulmonary tuberculosis activity --serum surfactant proteins A and D, KL-6, C-reactive protein, and erythrocyte sedimentation rate].
Kekkaku
PUBLISHED: 09-09-2014
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To evaluate serum surfactant proteins A and D (SP-A and SP-D), KL-6, C-reactive protein (CRP), and erythrocyte sedimentation rate (ESR) as biomarkers for monitoring the activity of pulmonary tuberculosis.
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Pilot quasi-randomized controlled study of herbal medicine Hochuekkito as an adjunct to conventional treatment for progressed pulmonary Mycobacterium avium complex disease.
PLoS ONE
PUBLISHED: 01-01-2014
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Hochuekkito, a traditional herbal medicine, is occasionally prescribed in Japan to treat patients with a poor general condition. We aimed to examine whether this medicine was beneficial and tolerable for patients with progressed pulmonary Mycobacterium avium complex (MAC) disease.
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Severe obliterative bronchitis associated with Stevens-Johnson syndrome.
Intern. Med.
PUBLISHED: 11-15-2011
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We report a case of Stevens-Johnson syndrome (SJS) in which the patient had been diagnosed with severe obliterative bronchitis. A 29-year-old woman was admitted with a high fever and a widespread vesicular rash. She was diagnosed with SJS and betamethasone administration was started. After one month, her vesicular skin rash improved; however, she developed respiratory failure and was assisted with mechanical ventilation. Computed tomography of the chest demonstrated a hyperlucent lung with narrowing of the peripheral vessels. Bronchoscopy revealed an occlusion of the bronchus when the patient exhaled. The flow-volume curve revealed a severe obstructive pattern. The patient was diagnosed with obliterative bronchitis following SJS. She was treated with a bronchodilator and steroids, but could not breathe adequately without the ventilator. During the following year, her PaCO(2) increased to 100 torr and her heart function also continued to worsen. Despite intensive treatment, she died one year and seven months after the onset of SJS. In SJS and toxic epidermal necrolysis (TEN) patients, chronic pulmonary complications are rare, but there is no effective therapy for obliterative bronchitis following SJS/TEN. Therefore, early awareness of this condition is needed and lung transplantation must be considered at an early stage of this disease.
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[Pulmonary mycobacteriosis caused by Mycobacterium peregrinum in a young, healthy man].
Nihon Kokyuki Gakkai Zasshi
PUBLISHED: 12-15-2010
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A 24-year-old male never-smoker with no contributory medical history was referred to our division because of chronic productive cough and fever. His chest CT showed pulmonary consolidation including nodular shadows around the bronchovascular bundle in both upper lobes and right middle lobe. Sputum smears were negative but cultures were positive for Mycobacterium peregrinum, twice. He was given a diagnosis of pulmonary mycobacteriosis caused by M. peregrinum and treated with clarithromycin, levofloxacin, and ethambutol. His symptoms and the infiltrates improved, and further sputum cultures were negative for mycobacteria. M. peregrinum is a species included in the M. fortuitum group, of rapidly-growing non-tuberculous mycobacteria. To the best of our knowledge, only 2 cases with lung infection caused by M. peregrinum have been previously reported, both of which occurred in patients in their 60s with underlying diseases, including low immunity due to immunosuppressants for polymyositis, or bronchiectasia. We describe a rare case of pulmonary mycobacteriosis due to M. peregrinum in a healthy man without any underlying diseases.
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[Trends in antibiotic susceptibility and genetic beta-lactam resistance patterns among Haemophilus influenzae cases isolated from adult patients with respiratory tract infection].
Kansenshogaku Zasshi
PUBLISHED: 08-25-2009
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Haemophilus influenzae, a major respiratory tract pathogen, is becoming increasingly resistant to beta-lactam antibiotics. Studying annual trends in antibiotic susceptibility and genetic patterns of H. influenzae beta-lactam resistance, we isolated 122 strains from the adult respiratory tract in 2007, determined MIC for different antibiotics, and analyzed TEM-1 beta-lactamase resistant genes and ftsI encoding PBP3 mutation compared to results in 2005 and 2007. We found that ABPC-susceptible strains with MIC <1 microg/mL (BLNAS) accounted for 71.0%, ABPC-resistant strains with MIC exceeding 2 microg/mL without beta-lactamase activity (BLNAR) for 25.3%, and beta-lactamase-positive strains (BLP) for 3.7%. The BLNAS ratio showed no significant change from 2002 and 2005. The BLP ratio decreased from those in 2002 and 2005. Genetic studies of resistant genes showed that gBLNAS with no resistant genes had increased in the last five years. The ratio of all strains with PBP3 mutation (gBLNAR and gLow-BLNAR) remained constant from 2002 to 2007. The proportion of gBLNAR with two PBP3 mutations had increased, however, while gLow-BLNAR with one mutation had decreased. LVFX showed constant strong antimicrobial potency for all mutation groups. Among beta-lactam antibiotics, the lowest MIC90 was observed in parenteral CTRX and oral CDTR-PI use. Although a new MIC peak generated by gBLNAR became obvious in the ABPC and CDTR-PI MIC distribution, the MIC of the new peak was still low enough to treat with high doses of those two antibiotics.
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[A case of pulmonary Mycobacterium avium infection presenting multiple nodules with substantial difference in 18F-fluorodeoxyglucose uptake].
Nihon Kokyuki Gakkai Zasshi
PUBLISHED: 07-30-2009
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A 56-year-old man presented with a chief complaint of chronic cough due to bronchial asthma and pulmonary emphysema in 2001, without any abnormal findings on chest CT. His symptoms improved with high-dose inhaled corticosteroid. In February 2004, multiple nodules without bronchiectasis appeared in the chest CT. Pulmonary Mycobacterium avium infection was diagnosed by bronchial lavage and sputum culture. After multiple nodules appeared and disappeared repeatedly without medication, most nodules vanished after administration of antituberculous drugs. In Feburary 2007, a rapidly growing mass appeared in the right upper lobe, and a new nodule emerged in the left upper lobe the following month. On 18F-fluorodeoxyglucose positron emission tomography (18 FDG-PET), a substantial difference in 18FDG uptake was observed although both lesions were shown to be caused by Mycobacterium avium infection by needle biopsy. The lung specimen of the lesion with high 18FDG uptake demonstrated neutrophil infiltrates, suggesting acute inflammation. On the other hand, neutrophil infiltrates were not observed in the lesion with low uptake. We conclude that the degree of 18FDG uptake is not useful to decide when to initiate therapy and evaluate the efficacy of treatment.
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[Usefulness of monitoring plasma voriconazole concentration in patients with chronic necrotizing pulmonary aspergillosis].
Nihon Kokyuki Gakkai Zasshi
PUBLISHED: 03-06-2009
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We investigated the significance and the usefulness of monitoring plasma voriconazole levels in patients with chronic necrotizing pulmonary aspergillosis associated with underlying chronic respiratory diseases. The average trough level was 2.2 microg/ml and there was no correlation between trough levels and voriconazole doses. Orally administered drug showed no significant difference in trough or peak levels compared with parenteral injection. Six cases with visual adverse events had significantly higher nadirs compared to those without visual disturbance. All three cases who discontinued the drug due to liver dysfunction had plasma trough levels higher than 4.0 microg/ml. Those who failed to respond to the treatment had trough levels lower than 1.4 microg/ml or peak levels lower than 2.8 microg/ml, while some cases with plasma level lower than those levels responded well. Since plasma voriconazole level has a large inter-patient variability, drug monitoring may be beneficial to evaluate the drug efficacy and safety in each individual.
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[A case of pulmonary Mycobacterium gordonae infection diagnosed by gastric juice culture and successfully treated with multidrug chemotherapy].
Kekkaku
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In September 2008, a 60-year-old woman presented to our hospital with a complaint of bloody sputum; she was healthy until this event. Chest computed tomography scan revealed a cavity, nodular shadows, and bronchiectasis in the left upper lobe and in the left and right middle lobes. Acid-fast bacilli were detected 2 times on gastric juice culture and Mycobacterium gordonae was identified on biochemical study. No active chemotherapy was administered because the discharge of this strain was considered casual and clinically nonsignificant. However, her radiological findings worsened in the following 1 year and 3 months, and M. gordonae was detected 2 more times on gastric juice culture. Subsequently, she was diagnosed with pulmonary mycobacteriosis caused by M. gordonae and was treated with clarithromycin, rifampicin, and levofloxacin. After 1 month, her gastric juice culture yielded negative results for M. gordonae, and after a year and a half, her radiological findings improved. In this case, gastric juice culture was as useful as sputum examination for diagnosis and evaluation of the disease. Although M. gordonae is usually considered nonpathogenic, our study shows that it can be pathogenic, and M. gordonae infection may require treatment with chemotherapy.
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Clinical characteristics and prevalence of pneumothorax in patients with pulmonary Mycobacterium avium complex disease.
J. Infect. Chemother.
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Pneumothorax in patients with pulmonary Mycobacterium avium complex (MAC) disease is considered to be a rare complication, and little is known about its clinical course. In this study, we aimed to define the clinical features, outcome, and prevalence of pneumothorax in patients with pulmonary MAC disease. A retrospective review of medical records identified eight men and ten women (mean age, 75 years) with active pulmonary MAC disease complicated by pneumothorax between 2003 and 2010 in our institution. None of the patients was positive for HIV infection. Pneumothorax occurred in the right lung in 12 patients and in the left in six. All but one patient had MAC disease in both lungs, and 12 patients had widespread lesions covering a total area larger than one lung field. Seven of the 18 patients (39 %) were forced to undergo surgery following unsuccessful thoracic drainage. Five patients experienced recurrence during the study period and two others eventually developed chronic pneumothorax. The complication rate of pneumothorax was calculated on the bases of the total number of patients with active pulmonary MAC disease during the same period. The overall complication rate of pneumothorax was as high as 2.4 % (18 of 746 patients with MAC disease). In conclusion, the incidence of pneumothorax in patients with active pulmonary MAC disease was unexpectedly high, especially in patients who were elderly and had advanced MAC disease. This condition is often difficult to treat and can recur easily.
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Antimicrobial resistance genotype trend and its association with host clinical characteristics in respiratory isolates of Haemophilus influenzae.
Chemotherapy
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?-Lactam resistance genotype trends in clinical isolates of Haemophilus influenzae and their correlation with the clinical background were analyzed.
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What is Visualize?

JoVE Visualize is a tool created to match the last 5 years of PubMed publications to methods in JoVE's video library.

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We use abstracts found on PubMed and match them to JoVE videos to create a list of 10 to 30 related methods videos.

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In developing our video relationships, we compare around 5 million PubMed articles to our library of over 4,500 methods videos. In some cases the language used in the PubMed abstracts makes matching that content to a JoVE video difficult. In other cases, there happens not to be any content in our video library that is relevant to the topic of a given abstract. In these cases, our algorithms are trying their best to display videos with relevant content, which can sometimes result in matched videos with only a slight relation.