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Pneumonia etiology

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https://www.readbyqxmd.com/read/29050992/the-impact-of-13-valent-pneumococcal-conjugate-vaccination-on-virus-associated-community-acquired-pneumonia-in-elderly
#1
Susanne M Huijts, Frank E J Coenjaerts, Marieke Bolkenbaas, Cornelis H van Werkhoven, Diederick E Grobbee, Marc J M Bonten
OBJECTIVES: Our objective was to evaluate whether vaccination with the 13-valent pneumococcal conjugate vaccine (PCV13) prevents the incidence of community-acquired pneumonia (CAP) caused by influenza (Influenza-Associated CAP, IA-CAP) or other respiratory viruses in elderly. METHODS: This analysis was part of the Community-Acquired Pneumonia immunization Trial in Adults (CAPiTA); a double blind, randomized, placebo-controlled trial in 84,496 immunocompetent individuals aged ≥65 years...
October 16, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/29046034/-neurological-manifestations-in-atypical-kawasaki-disease
#2
Edgar Martínez-Guzmán, Luisa Berenise Gámez-González, Francisco Rivas-Larrauri, Giovanni Sorcia-Ramírez, Marco Yamazaki-Nakashimada
BACKGROUND: Kawasaki disease (KD) is a type of systemic vasculitis of unknown etiology. Atypical Kawasaki disease is defined as that where there are signs and symptoms not corresponding to the classical criteria for this nosological entity. Children with atypical Kawasaki disease may present with acute abdominal symptoms, meningeal irritation, pneumonia or renal failure. CLINICAL CASES: We describe 4 children with ages ranging from 2 to 12 years who had atypical Kawasaki disease, with neurological and gastrointestinal symptoms as part of the systemic presentation of the disease...
July 2017: Revista Alergia Mexico: Organo Oficial de la Sociedad Mexicana de Alergia e Inmunología, A.C
https://www.readbyqxmd.com/read/29037396/maternal-exposure-to-ambient-air-temperature-during-pregnancy-and-early-childhood-pneumonia
#3
Yufeng Miao, Yong-Ming Shen, Chan Lu, Ji Zeng, Qihong Deng
BACKGROUND: Pneumonia has been widely recognized as the leading cause of death in children worldwide, but its etiology still remains unclear. OBJECTIVE: We examined the association between maternal exposure to ambient air temperature during pregnancy and lifetime pneumonia in the offspring. METHODS: We conducted a cohort study of 2598 preschool children aged 3-6 years in Changsha, China. The lifetime prevalence of pneumonia was assessed using questionnaire...
October 2017: Journal of Thermal Biology
https://www.readbyqxmd.com/read/29036955/-comparision-of-risk-factors-and-pathogens-in-patients-with-early-and-late-onset-ventilator-associated-pneumonia-in-intensive-care-unit
#4
Y J Liang, Z L Li, L Wang, B Y Liu, R Y Ding, X C Ma
Objective: To compare risk factors and bacterial etiology in patients with early-onset versus late-onset ventilator-associated pneumonia (VAP) in intensive care unit (ICU). Methods: This prospective cohort study enrolled mechanically ventilated patients hospitalized for more than 48 hours in the first affiliated hospital, China Medical University from Jan 2012 to Jun 2016. Subjects were classified by ventilator status: early-onset VAP (< 5 d ventilation, E-VAP) or late-onset VAP (≥ 5 d ventilation, L-VAP)...
October 1, 2017: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/29036724/etiology-and-clinical-characteristics-of-community-acquired-pneumonia-with-airway-malacia-in-children
#5
Wang Yu-Qing, Hao Chuang-Li, Ji Wei, Chen Zheng-Rong, Zhang Xin-Xin, Gu Wen-Jing
Objective: The objective of this article is to study the etiology of community-acquired pneumonia in children with airway malacia. Methods: We retrospectively reviewed the medical records of 428 pneumonia patients. All patients underwent bronchoscopy, and bronchoalveolar lavage samples were processed for microbiological assessment. Results: In a total of 428 cases reviewed, 60 were found to have airway malacia. Pathogens were identified in 44 of the 60 specimens (73...
September 27, 2017: Journal of Tropical Pediatrics
https://www.readbyqxmd.com/read/29027126/etiology-and-risk-factors-determining-poor-outcome-of-severe-pneumonia-in-under-five-children
#6
Suresh Kumar Jakhar, Mukul Pandey, Dheeraj Shah, V G Ramachandran, Rumpa Saha, Natasha Gupta, Piyush Gupta
OBJECTIVES: To determine the etiology of severe pneumonia (pneumonia with chest indrawing) in under-five children, and to study the risk factors for poor outcomes viz., 'treatment failure', 'need for change in antibiotics', 'prolonged hospital stay', 'need for mechanical ventilation' and 'mortality.' METHODS: Children (age 2 mo to 5 y) with pneumonia and chest drawing were enrolled prospectively from October 2012 through September 2013. Clinical history was recorded, and examination, anthropometry and investigations (including chest X-ray, blood culture and nasopharyngeal swab culture) were performed...
October 13, 2017: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/29027028/determination-of-avidity-of-igg-against-protein-antigens-from-streptococcus-pneumoniae-assay-development-and-preliminary-application-in-clinical-settings
#7
D C Andrade, I C Borges, N Ekström, T Jartti, T Puhakka, A Barral, H Kayhty, O Ruuskanen, C M Nascimento-Carvalho
The measurement of antibody levels is a common test for the diagnosis of Streptococcus pneumoniae infection in research. However, the quality of antibody response, reflected by avidity, has not been adequately evaluated. We aimed to evaluate the role of avidity of IgG against eight pneumococcal proteins in etiologic diagnosis. Eight pneumococcal proteins (Ply, CbpA, PspA1 and 2, PcpA, PhtD, StkP-C, and PcsB-N) were used to develop a multiplex bead-based avidity immunoassay. The assay was tested for effects of the chaotropic agent, multiplexing, and repeatability...
October 12, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/29026472/clinical-features-and-antimicrobial-resistance-of-bacterial-agents-of-ventilator-associated-tracheobronchitis-in-hamedan-iran
#8
Seyyed Hamid Hashemi, Naeimeh Hashemi, Farzaneh Esna-Ashari, Abbas Taher, Arash Dehghan
OBJECTIVES: Ventilator-associated tracheobronchitis (VAT) is a common cause of mortality and morbidity in patients admitted to intensive care units (ICUs). This study was conducted to evaluate the clinical course, etiology, and antimicrobial resistance of bacterial agents of VAT in ICUs in Hamedan, Iran. METHODS: During a 12-month period, all patients with VAT in a medical and a surgical ICU were included. The criteria for the diagnosis of VAT were fever, mucus production, a positive culture of tracheal secretions, and the absence of lung infiltration...
September 2017: Oman Medical Journal
https://www.readbyqxmd.com/read/29022232/a-case-of-fatal-perimyocarditis-due-to-a-rare-disease
#9
Stefanie Plenzig, Sara Heinbuch, Hannelore Held, Marcel A Verhoff, Constantin Lux
Although myocarditis is caused by viral infections in about 50% of cases in European countries, various other causative agents are known. We report the case of a 51-year-old man who died several months after being diagnosed with asthma by his general practitioner. This diagnosis had been confirmed by a pulmonologist approximately 6 weeks before the man's death. To rule out the possibility of medical malpractice the prosecuting authority ordered a forensic autopsy. At autopsy macroscopic indicators for perimyocarditis and pneumonia were found...
October 11, 2017: Forensic Science, Medicine, and Pathology
https://www.readbyqxmd.com/read/29017829/etiology-of-community-onset-monomicrobial-bacteremic-pneumonia-and-its-clinical-presentation-and-outcome-klebsiella-and-pseudomonas-matters
#10
Chao-Yung Yang, Chung-Hsun Lee, Chih-Chia Hsieh, Wen-Chien Ko, Ching-Chi Lee
To describe the difference of the clinical features, bacteremia severity, and outcome of patient with community-onset bacteremic pneumonia between Pseudomonas, Klebsiella, and other causative microorganisms, the total 278 adults with community-onset monomicrobial bacteremic pneumonia were studied in a retrospective cohort. Klebsiella (61 patients, 21.9%) and Pseudomonas (22, 7.9%) species was the leading and the fifth common pathogen, respectively. More patients having initial presentation with critical illness (a Pitt bacteremia score ≥ 4) and a fatal comorbidity (McCabe classification) as well as a higher short- (30-day) or long-term (90-day) mortality rate was evidenced in patients infected with Klebsiella or Pseudomonas species, compared to other causative microorganisms...
October 7, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28991723/infections-and-chlamydia-pneumoniae-antibodies-influence-the-functional-outcome-in-thrombolysed-strokes
#11
Domenico Consoli, Simone Vidale, Marco Arnaboldi, Anna Cavallini, Arturo Consoli, Franco Galati, Donata Guidetti, Giuseppe Micieli, Maurizia Rasura, Roberto Sterzi, Danilo Toni, Domenico Inzitari
OBJECTIVE: Thrombolysis is effective in ischemic stroke patients, but some factors influence its benefit. Previous infections could increase the risk of ischemic stroke by an activation of systemic inflammation. We analysed the influence of previous infections and Chlamydia pneumoniae serology on functional outcome in thrombolysed stroke patients. METHODS: Consecutive thrombolysed stroke patients admitted during calendar year 2011 were analysed. Demographics, vascular risk factors, clinical and aetiological data were registered...
October 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28991319/-etiology-and-evolution-of-the-osteoarticular-infections-2009-2015-pediatric-hospital-pereira-rossell-uruguay
#12
Carlos Zuníno, Alejandra Vomero, Soledad Pandolfo, Claudia Gutiérrez, Gabriela Algorta, M Catalina Pírez, Gustavo Giachetto
BACKGROUND: The most frequent osteoarticular infections (OAI) etiological agent is Staphylococcus aureus. The prevalence of other microorganisms has changed after the introduction of new vaccines. AIM: To describe the etiology and evolution of the OAIs in children hospitalized in Pediatric Hospital Pereira Rossell between 2009 and 2015. PATIENTS AND METHODS: Joint fluid and bone puncture studies of hospitalized children suspected of OAI. Epidemiological characteristics, isolated microorganisms, complementary tests, initial treatment, complications, and days of hospitalization were analyzed...
June 2017: Revista Chilena de Infectología: órgano Oficial de la Sociedad Chilena de Infectología
https://www.readbyqxmd.com/read/28980591/-the-role-of-persistent-viral-infections-with-herpes-viridae-and-papilloma-viridae-associated-with-chronic-inflammatory-pathology-of-the-oropharynx
#13
N D Yushchuk, A I Kryukov, A B Turovsky, I A Popova, M V Savostikova
The high prevalence of chronic inflammatory oropharyngeal pathologies and a large variety of specific pathogenetic features of the persistent viral infections caused by the species of the families Herpesviridae and Papillomaviridae as etiological agents of the disease suggest the necessity of investigations with a view to evaluating the clinical significance of persistent viral infections with Herpesviridae and Papillomaviridae species in the patients presenting with chronic inflammatory oropharyngreal pathology...
2017: Vestnik Otorinolaringologii
https://www.readbyqxmd.com/read/28975629/etiology-of-community-acquired-pneumonia-in-1500-hospitalized-children
#14
Oumei Hao, Xuefeng Wang, Jianping Liu, Kunling Shen, Rong Ma, Zhenze Cui, Li Deng, Huimin Yan, Lining Wang, Zhaolan Liu, Xinmin Li, Hua Xu, Zhiyan Jiang, Yanning Li, Yan Huang, Baoqing Zhang, Xiaochun Feng, Chunhui He, Yonghong Jiang, Xue Zhao, Wei Wei, Zi Wang
Childhood community-acquired pneumonia (CAP) is a common illness; however, comprehensive studies of hospitalizations for CAP among children in China based on prospective and multicenter data collection are limited. The aim of this investigation was to determine the respiratory pathogens responsible for CAP in hospitalized children. From January to December 2015, oropharyngeal swabs and blood serum were collected from hospitalized children with CAP symptoms ranging in age from 6 months to 14 years at 10 hospitals across China...
October 3, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28968668/rhinovirus-viremia-in-patients-hospitalized-with-community-acquired-pneumonia
#15
Xiaoyan Lu, Eileen Schneider, Seema Jain, Anna M Bramley, Weston Hymas, Chris Stockmann, Krow Ampofo, Sandra R Arnold, Derek J Williams, Wesley H Self, Anami Patel, James D Chappell, Carlos G Grijalva, Evan J Anderson, Richard G Wunderink, Jonathan A McCullers, Kathryn M Edwards, Andrew T Pavia, Dean D Erdman
Background: Rhinoviruses (RVs) are ubiquitous respiratory pathogens that often cause mild or subclinical infections. Molecular detection of RV from the upper respiratory tract can be prolonged, complicating etiologic association in persons with severe lower respiratory tract infections. Little is known about RV viremia and its value as a diagnostic indicator in persons hospitalized with community-acquired pneumonia (CAP). Methods: Sera from RV-positive children and adults hospitalized with CAP were tested for RV by real-time RT-PCR...
August 29, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28948369/acute-hypoxemic-respiratory-failure-in-immunocompromised-patients-the-efraim-multinational-prospective-cohort-study
#16
Elie Azoulay, Peter Pickkers, Marcio Soares, Anders Perner, Jordi Rello, Philippe R Bauer, Andry van de Louw, Pleun Hemelaar, Virginie Lemiale, Fabio Silvio Taccone, Ignacio Martin Loeches, Tine Sylvest Meyhoff, Jorge Salluh, Peter Schellongowski, Katerina Rusinova, Nicolas Terzi, Sangeeta Mehta, Massimo Antonelli, Achille Kouatchet, Andreas Barratt-Due, Miia Valkonen, Precious Pearl Landburg, Fabrice Bruneel, Ramin Brandt Bukan, Frédéric Pène, Victoria Metaxa, Anne Sophie Moreau, Virginie Souppart, Gaston Burghi, Christophe Girault, Ulysses V A Silva, Luca Montini, François Barbier, Lene B Nielsen, Benjamin Gaborit, Djamel Mokart, Sylvie Chevret
BACKGROUND: In immunocompromised patients with acute hypoxemic respiratory failure (ARF), initial management aims primarily to avoid invasive mechanical ventilation (IMV). METHODS: To assess the impact of initial management on IMV and mortality rates, we performed a multinational observational prospective cohort study in 16 countries (68 centers). RESULTS: A total of 1611 patients were enrolled (hematological malignancies 51.9%, solid tumors 35...
September 25, 2017: Intensive Care Medicine
https://www.readbyqxmd.com/read/28947036/possible-uip-pattern-on-high-resolution-computed-tomography-is-associated-with-better-survival-than-definite-uip-in-ipf-patients
#17
Margaret L Salisbury, Leslie B Tolle, Meng Xia, Susan Murray, Nabihah Tayob, Anoop M Nambiar, Shelley L Schmidt, Amir Lagstein, Jeffery L Myers, Barry H Gross, Ella A Kazerooni, Baskaran Sundaram, Aamer R Chughtai, Fernando J Martinez, Kevin R Flaherty
BACKGROUND: Idiopathic pulmonary fibrosis (IPF) is a progressive fibrosing lung disease of unknown etiology. Inter-society consensus guidelines on IPF diagnosis and management outline radiologic patterns including definite usual interstitial pneumonia (UIP), possible UIP, and inconsistent with UIP. We evaluate these diagnostic categories as prognostic markers among patients with IPF. METHODS: Included subjects had biopsy-proven UIP, a multidisciplinary team diagnosis of IPF, and a baseline high-resolution computed tomography (HRCT)...
October 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/28944408/etiology-of-childhood-pneumonia-what-we-know-and-what-we-need-to-know-based-on-5th-dr-ic-verma-excellence-oration-award
#18
Joseph L Mathew
Childhood community acquired pneumonia continues to be an important clinical problem at the individual, institutional and community levels. Determination of microbial etiology is critical to develop evidence-based management (therapeutic and prophylactic) decisions. For decades, the approach to this relied on culture of lung aspirate specimens obtained from children with radiographically confirmed pneumonia, before administering antibiotics. Such studies revealed the major bacteria associated with pneumonia, prompting the World Health Organization to develop a highly sensitive clinical definition of pneumonia and advocate empiric antibiotic therapy; in order to save lives (focusing on community settings lacking resources for diagnostic tests)...
September 25, 2017: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/28943175/a-promising-new-test-to-detect-streptococcus-pneumoniae-urinary-antigen
#19
C Loïez, C Duployez, F Wallet
BACKGROUND: Streptococcus pneumoniae is the main etiology of community-acquired pneumonia (CAP). A quick detection of urinary antigen helps in obtaining a documented result in case of Streptococcus pneumoniae CAP. METHODS: We compared the BinaxNOW(®)S. pneumoniae test with the new urinary antigen Sofia(®)S. pneumoniae FIA. We examined 133 urine samples. RESULTS: Of the 133 included and tested non-concentrated urine samples, BinaxNOW(®) and Sofia(®) tests yielded 122 and 113 negative results and 11 and 20 positive results, respectively...
November 2017: Médecine et Maladies Infectieuses
https://www.readbyqxmd.com/read/28942952/persistent-impairment-on-spirometry-in-chronic-eosinophilic-pneumonia-a-longitudinal-observation-study-shizuoka-cep-study
#20
Yuzo Suzuki, Yoshiyuki Oyama, Hironao Hozumi, Shiro Imokawa, Mikio Toyoshima, Koshi Yokomura, Hidenori Nakamura, Shigeki Kuroishi, Masato Karayama, Kazuki Furuhashi, Noriyuki Enomoto, Tomoyuki Fujisawa, Yutaro Nakamura, Naoki Inui, Naoki Koshimizu, Takashi Yamada, Kazutaka Mori, Masafumi Masuda, Toshihiro Shirai, Hiroshi Hayakawa, Mitsuhiro Sumikawa, Takeshi Johkoh, Takafumi Suda
BACKGROUND: Chronic eosinophilic pneumonia (CEP) is characterized by the accumulation of eosinophils in the lung with unknown etiology. Although systemic corticosteroid administration leads to dramatic improvement, nearly half the patients with CEP experience relapse and some develop persistent impairment of pulmonary function. However, predictive factors for this persistent impairment have not been determined. OBJECTIVE: To investigate the occurrence of persistent impairment of pulmonary function in CEP and determine its predictive factors...
September 21, 2017: Annals of Allergy, Asthma & Immunology
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