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Atypical pneumonia

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https://www.readbyqxmd.com/read/28214275/detection-of-pneumocystis-jirovecii-by-nested-pcr-in-hiv-negative-patients-with-pulmonary-disease
#1
Cristina Rodrigues Santos, Ângela M de Assis, Edson A Luz, Luzia Lyra, Ivan F Toro, José Claudio C Seabra, Dira H Daldin, Tathiane U Marcalto, Marcos T Galasso, Ronaldo F Macedo, Angélica Z Schreiber, Francisco H Aoki
BACKGROUND: Nested PCR can be used to determine the status of Pneumocystis jirovecii infection in other lung diseases. AIMS: This study sought to detect a target DNA fragment (mitochondrial large subunit rRNA or mtL SUrRNA) of P. jirovecii in patients with lung disease who underwent bronchoscopy with collection of bronchoalveolar lavage (BAL). METHODS: The results from toluidine blue staining were compared with those obtained using molecular methods that included an "in house" DNA extraction procedure, PCR and nested PCR...
February 14, 2017: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/28209041/-pulmonary-intravascular-large-b-cell-lymphomamanifesting-as-interstitial-pneumonias-report-of-2-cases-and-review-of-literature
#2
T T Zhao, M S Cao, Y W Zhang, J H Dai, F Q Meng, H R Cai
Objective: To investigate the clinical, radiographic characteristics and prognosis of pulmonary intravascular large B-cell lymphoma(IVLBCL) manifesting as interstitial pneumonias on HRCT. Methods: A retrospective analysis was carried out on clinical data of 2 patients with pulmonary IVLBCL admitted to the Affiliated Drum Tower Hospital of Nanjing University from March 2010 to May 2012. A literature research was performed with "pulmonary intravascular lymphoma" as the key word in Wanfang Database, China Knowledge Resource Integrated Database and Pubmed...
February 12, 2017: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28198726/community-acquired-pneumonia-requiring-hospitalization-rational-decision-making-and-interpretation-of-guidelines
#3
Douwe F Postma, Cornelis H van Werkhoven, Jan Jelrik Oosterheert
PURPOSE OF REVIEW: This review focuses on the evidence base for guideline recommendations on the diagnosis, the optimal choice, timing and duration of empirical antibiotic therapy, and the use of microbiological tests for patients hospitalized with community-acquired pneumonia (CAP): issues for which guidelines are frequently used as a quick reference. Furthermore, we will discuss possibilities for future research in these topics. RECENT FINDINGS: Many national and international guideline recommendations, even on critical elements of CAP management, are based on low-to-moderate quality evidence...
February 13, 2017: Current Opinion in Pulmonary Medicine
https://www.readbyqxmd.com/read/28193649/pbp2x-in-streptococcus-pseudopneumoniae-an-insight-into-the-diversity-of-pbp2x-alleles-and-mutations-in-viridans-streptococci
#4
Mark van der Linden, Julia Otten, Carina Bergmann, Cristina Latorre, Josefina Liñares, Regine Hakenbeck
Speciation of commensal streptococci is an everlasting problem due to their ability for genetic transformation. A new challenge in this respect is the recently described S. pseudopneumoniae as a new species, distinguished from closely related pathogenic S. pneumoniae and commensal S. mitis by a variety of physiological and molecular biological tests. Fortyone atypical S. pneumoniae have been collected at the National Reference Center for Streptococci (NRSG) in Germany. MLST analysis confirmed the species S...
February 13, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28192578/when-the-great-masquerader-reveals-itself-tuberculosis
#5
Brittany Hodgson, Benjamin D Kornfeld, Bridget M Wild
Pneumonia is a clinical diagnosis often treated empirically and successfully on an outpatient basis. When a patient fails to improve, the clinician is left to revisit the differential of pathogens and reconsider the host. Admission, imaging, and invasive and noninvasive testing are part of the toolkit for the severe or atypical case of pneumonia. For fastidious organisms, achieving a culture-proven diagnosis can be quite difficult. This article discusses the screening and testing for tuberculosis, reviews the utility of computed tomography imaging and bronchoscopy with bronchoalveolar lavage in severe or atypical pneumonia, and highlights the barriers to definitive diagnosis even when the causative microbe is on the differential diagnosis when a patient is admitted...
February 1, 2017: Pediatric Annals
https://www.readbyqxmd.com/read/28186624/adverse-events-associated-with-antipsychotic-use-in-hospitalized-older-adults-after-cardiac-surgery
#6
Dae H Kim, Krista F Huybrechts, Elisabetta Patorno, Edward R Marcantonio, Yoonyoung Park, Raisa Levin, Abdurrahman Abdurrob, Brian T Bateman
OBJECTIVES: To evaluate in-hospital adverse events associated with typical and atypical antipsychotic medications (APMs) after cardiac surgery. DESIGN: Retrospective cohort study. SETTING: Nationwide inpatient database, 2003 to 14. PARTICIPANTS: Individuals (mean age 70) newly treated with oral atypical (n = 2,580) or typical (n = 1,126 APMs) after coronary artery bypass grafting or valve surgery (N = 3,706). MEASUREMENTS: In-hospital mortality, arrhythmia, pneumonia, use of brain imaging (surrogate for oversedation and neurological events), and length of stay after drug initiation RESULTS: In the propensity score-matched cohort, median treatment duration was 3 days (interquartile range (IQR) 1-6 days) for atypical APMs and 2 days (IQR 1-3 days) for typical APMs...
February 10, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28159180/legionnaire-s-disease-and-its-protean-clinical-manifestations-the-ongoing-challenges-of-the-most-interesting-atypical-pneumonia
#7
EDITORIAL
Cheston B Cunha, Burke A Cunha
No abstract text is available yet for this article.
March 2017: Infectious Disease Clinics of North America
https://www.readbyqxmd.com/read/28159178/legionnaire-s-disease-a-clinical-diagnostic-approach
#8
REVIEW
Burke A Cunha, Cheston B Cunha
Legionnaire's disease is a nonzoonotic atypical pneumonia caused by Legionella sp that occurs sporadically or in outbreaks. Legionnaire's disease pneumonia is accompanied by several extrapulmonary clinical and laboratory findings. Rather than testing all pneumonias for Legionnaire's disease, the clinical challenge is to recognize the diagnostic significance of Legionnaire's disease's. The pretest probability of Legionnaire's disease is increased if several characteristic extrapulmonary findings are present...
March 2017: Infectious Disease Clinics of North America
https://www.readbyqxmd.com/read/28159166/respiratory-viral-and-atypical-pneumonias
#9
EDITORIAL
Charles S Dela Cruz, Richard G Wunderink
No abstract text is available yet for this article.
March 2017: Clinics in Chest Medicine
https://www.readbyqxmd.com/read/28159161/atypical-pneumonia-updates-on-legionella-chlamydophila-and-mycoplasma-pneumonia
#10
REVIEW
Lokesh Sharma, Ashley Losier, Thomas Tolbert, Charles S Dela Cruz, Chad R Marion
Community-acquired pneumonia (CAP) has multiple causes and is associated with illness that requires admission to the hospital and mortality. The causes of atypical CAP include Legionella species, Chlamydophila, and Mycoplasma. Atypical CAP remains a diagnostic challenge and, therefore, likely is undertreated. This article reviews the advancements in the evaluation and treatment of patients and discusses current conflicts and controversies of atypical CAP.
March 2017: Clinics in Chest Medicine
https://www.readbyqxmd.com/read/28159158/diagnosing-viral-and-atypical-pathogens-in-the-setting-of-community-acquired-pneumonia
#11
REVIEW
Grant W Waterer
The 'atypical' pathogens causing pneumonia have long been problematic for physicians because we have had to rely on serologic tests to make a diagnosis. The introduction of polymerase chain reaction techniques revolutionized the diagnosis of respiratory infections and now a new wave of technologies promising faster, cheaper, and more comprehensive testing are becoming available. This review focuses principally on the diagnosis of Legionella, Mycoplasma, and influenza infections, but also covers recent publications on the cutting edge of diagnostic tools likely to transform the field of infectious diseases over the coming decade...
March 2017: Clinics in Chest Medicine
https://www.readbyqxmd.com/read/28149568/recommendations-for-the-management-of-idiopathic-pulmonary-fibrosis-in-south-africa-a-position-statement-of-the-south-african-thoracic-society
#12
REVIEW
Coenraad F N Koegelenberg, Gillian M Ainslie, Keertan Dheda, Brian W Allwood, Michelle L Wong, Umesh G Lalloo, Mohamed S Abdool-Gaffar, Hoosain Khalfey, Elvis M Irusen
Idiopathic pulmonary fibrosis (IPF) is a very specific form of a chronic, progressive fibroproliferative interstitial pneumonia of unknown aetiology. The disease is generally associated with a poor prognosis. Several international evidence-based guidelines on the diagnosis and management of IPF and other interstitial lung diseases (ILDs) have been published and updated in the last decade, and while the body of evidence for the use of some treatment modalities has grown, others have been shown to be futile and even harmful to patients...
December 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28148787/sars-coronavirus-nucleocapsid-inhibits-type-i-interferon-production-by-interfering-with-trim25-mediated-rig-i-ubiquitination
#13
Yong Hu, Wei Li, Ting Gao, Yan Cui, Yanwen Jin, Ping Li, Qingjun Ma, Xuan Liu, Cheng Cao
: Severe acute respiratory syndrome (SARS) is a respiratory disease caused by a coronavirus (SARS-CoV) that is characterized by atypical pneumonia. The nucleocapsid protein (N protein) of SARS-CoV plays an important role in inhibition of type I interferon (IFN) production via an unknown mechanism. In this study, the SARS-CoV N protein was found to bind to the SPRY domain of the tripartite motif protein 25 (TRIM25) E3 ubiquitin ligase, thereby interfering with the association between TRIM25 and retinoic acid-inducible gene I (RIG-I) and inhibiting TRIM25-mediated RIG-I ubiquitination and activation...
February 1, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28129377/high-prevalence-of-mycoplasma-pneumoniae-and-chlamydia-pneumoniae-in-children-with-acute-respiratory-infections-from-lima-peru
#14
Juana Del Valle-Mendoza, Fiorella Orellana-Peralta, Alvaro Marcelo-Rodríguez, Eduardo Verne, Mónica Esquivel-Vizcarra, Wilmer Silva-Caso, Miguel Angel Aguilar-Luis, Pablo Weilg, Verónica Casabona-Oré, Claudia Ugarte, Luis J Del Valle
BACKGROUND: Mycoplasma pneumoniae and Chlamydia pneumoniae are atypical pathogens responsible for pneumonia and a leading cause of morbidity and mortality in low income countries. The study objective is to determine the prevalence of this pathogens in Peruvian children with acute respiratory infections. METHODS: A consecutive cross-sectional study was conducted in Lima, Peru from May 2009 to September 2010. A total of 675 children admitted with clinical diagnoses of acute respiratory infections were tested for Mycoplasma pneumoniae and Chlamydia pneumoniae detection by polymerase chain reaction (PCR), and clinical symptoms were registered by the attending physician...
2017: PloS One
https://www.readbyqxmd.com/read/28121925/prospective-etiological-investigation-of-community-acquired-pulmonary-infections-in-hospitalized-people-living-with-hiv
#15
Claudia Figueiredo-Mello, Pontus Naucler, Marinella D Negra, Anna S Levin
The study of the etiological agents of community-acquired pulmonary infections is important to guide empirical therapy, requires constant updating, and has a substantial impact on the prognosis of patients. The objective of this study is to determine prospectively the etiology of community-acquired pulmonary infections in hospitalized adults living with HIV. Patients were submitted to an extended microbiological investigation that included molecular methods. The microbiological findings were evaluated according to severity of the disease and pneumococcal vaccine status...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28114362/clinical-features-and-courses-of-adenovirus-pneumonia-in-healthy-young-adults-during-an-outbreak-among-korean-military-personnel
#16
Ji Young Park, Bong-Joon Kim, Eun Jung Lee, Kwi Sung Park, Hee Sun Park, Sung Soo Jung, Ju Ock Kim
BACKGROUND: The number of pneumonia patients increased suddenly in Korean military hospitals in late December 2014, indicating the urgent need for an epidemic outbreak investigation. METHODS: We conducted a prospective study of pneumonia etiology among immunocompetent young adults admitted to Daejeon Armed Forces hospital. Patient blood and sputum samples were subjected to conventional culture, serology, and polymerase chain reaction tests for respiratory viruses and atypical pathogens...
2017: PloS One
https://www.readbyqxmd.com/read/28096226/disseminated-adenovirus-infection-causing-severe-ards
#17
Steven J Campbell, Jessica A Kynyk, John A Davis
A previously healthy young man with a rare genetic condition presented with severe acute respiratory distress syndrome secondary to pneumonia with septic shock. He did not improve with conventional therapy for his known causal organism thus prompting further workup. He was found to be profoundly immunosuppressed raising our suspicion for atypical organisms. A bronchoalveolar lavage sample was positive via PCR for adenovirus which we suspect exacerbated a pre-existing bacterial pneumonia and led to a severe and non-responsive respiratory failure...
January 17, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28062316/discovery-of-streptococcus-pneumoniae-serogroup-35-variants-in-australian-patients
#18
Megan Staples, Rikki M A Graham, Vicki Hicks, Janet Strachan, Anders Gonçalves da Silva, Jade Peverall, Veyatie Wicks, Amy V Jennison
OBJECTIVES: S. pneumoniae isolates from Australian invasive pneumococcal disease cases displaying an atypical 35B phenotype. Whole genome sequencing was used to analyse these strains and identify changes to the capsule gene regions. METHODS: Four atypical serogroup 35 isolates from Australian reference laboratories were unable to be assigned to one of the four known group 35 serotypes by the Quellung serotyping method. Genetic characterisation of the capsule locus was performed by bioinformatic analysis of whole genome sequencing data for all isolates RESULTS: Genetic analysis identified four independent disruptions to the wciG gene, which encodes an O-acetyltransferase responsible for the O-acetylation of the 6Galβ1 residue in the capsular polysaccharide repeat unit of serotype 35B...
January 3, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28059928/clozapine-usage-increases-the-incidence-of-pneumonia-compared-with-risperidone-and-the-general-population-a-retrospective-comparison-of-clozapine-risperidone-and-the-general-population-in-a-single-hospital-over-25-months
#19
Zachary R Stoecker, Wales T George, Jeffrey B O'Brien, Jon Jancik, Eduardo Colon, Joseph J Rasimas
The aim of this study was to determine whether the incidence of pneumonia in patients taking clozapine was more frequent compared with those taking risperidone or no atypical antipsychotics at all before admission to a tertiary care medical center. This was a retrospective, case-matched study of 465 general medicine patients over a 25 month period from 1 July 2010 to 31 July 2012. Detailed electronic medical records were analyzed to explore the association between the use of two atypical antipsychotics and incidence of pneumonia...
January 4, 2017: International Clinical Psychopharmacology
https://www.readbyqxmd.com/read/28058476/-pneumonia-in-immunosuppressed-patients
#20
O Solyanik, T Gaass, K Hellbach, J Dinkel
CLINICAL/METHODICAL ISSUE: Pulmonary infections are a common complication in immunosuppressed patients with a frequently fatal prognosis despite modern prophylactic therapy. An early and correct diagnosis is important for initiation of the appropriate therapy. STANDARD RADIOLOGICAL METHODS: Chest radiography is the preferred initial imaging examination but is not accurate enough for the detection of pulmonary infections in immunosuppressed patients. METHODICAL INNOVATIONS: Pneumonia is caused by a broad spectrum of pathogens in immunocompromised patients...
January 2017: Der Radiologe
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