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Viral pneumonia and bacterial pneumonia

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https://www.readbyqxmd.com/read/28425200/high-dose-calcineurin-inhibitor-free-everolimus-as-a-maintenance-regimen-for-heart-transplantation-may-be-a-risk-factor-for%C3%A2-pneumocystis-pneumonia
#1
Yu-Ning Hu, Nan-Yao Lee, Jun-Neng Roan, Chi-Hsin Hsu, Chwan-Yao Luo
BACKGROUND: Everolimus reduces the incidence of cardiac-allograft vasculopathy (CAV) and is less renally toxic than are calcineurin inhibitors (CNIs). We evaluated the safety of CNI-free everolimus for post-heart transplant (HTx) patients. METHODS: We retrospectively reviewed the records of 36 consecutive patients who had undergone an HTx between January 2006 and December 2013 in National Cheng Kung University Hospital. All patients initially had been treated with the standard tacrolimus regimen...
April 20, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28412081/nasopharyngeal-polymicrobial-colonization-during-health-viral-upper-respiratory-infection-and-upper-respiratory-bacterial-infection
#2
Qingfu Xu, Jareth Wischmeyer, Eduardo Gonzalez, Michael E Pichichero
OBJECTIVES: We sought to understand how polymicrobial colonization varies during health, viral upper respiratory infection (URI) and acute upper respiratory bacterial infection to understand differences in infection-prone vs. non-prone patients. METHODS: Nasopharyngeal (NP) samples were collected from 74 acute otitis media (AOM) infection-prone and 754 non-prone children during 2094 healthy visits, 673 viral URI visits and 631 AOM visits. Three otopathogens Streptococcus pneumoniae (Spn), Nontypeable Haemophilus influenzae (NTHi), and Moraxella catarrhalis (Mcat) were identified by culture...
April 13, 2017: Journal of Infection
https://www.readbyqxmd.com/read/28410546/coinfection-and-mortality-in-pneumonia-related-acute-respiratory-distress-syndrome-patients-with-bronchoalveolar-lavage-a-prospective-observational-study
#3
Kuo-Chin Kao, Li-Chung Chiu, Chen-Yiu Hung, Chih-Hao Chang, Cheng-Ta Yang, Chung-Chi Huang, Han-Chung Hu
BACKGROUND: Pneumonia is the leading risk factor of acute respiratory distress syndrome (ARDS). It is increasing studies in patients with pneumonia to reveal that coinfection with viral and bacterial infection can lead to poorer outcomes than no coinfection. This study evaluated the role of coinfection identified through bronchoalveolar lavage (BAL) examination on the outcomes of pneumonia-related ARDS. METHODS: We performed a prospective observational study at Chang Gung Memorial Hospital from October 2012 to May 2015...
May 2017: Shock
https://www.readbyqxmd.com/read/28408931/drug-induced-pneumonitis-secondary-to-treatment-with-paritaprevir-ritonavir-ombitasvir-and-dasabuvir-viekira-pak%C3%A2-for-chronic-hepatitis-c-case-report-of-an-unexpected-life-threatening-adverse-reaction
#4
Shih Yea Sylvia Wu, Bridget Faire, Edward Gane
VIEKIRA PAK (ritonavir-boosted paritaprevir/ombitasvir and dasabuvir) is an approved treatment for compensated patients with genotype 1 (GT1) chronic hepatitis C virus (HCV) infection. This oral regimen has minimal adverse effects and is well tolerated. Cure rates are 97% in patients infected with HCV GT 1a and 99% in those with HCV GT 1b. We report the first case of life-threatening allergic pneumonitis associated with VIEKIRA PAK. This unexpected serious adverse event occurred in a 68-year-old Chinese female with genotype 1b chronic hepatitis C and Child-Pugh A cirrhosis...
2017: Case Reports in Medicine
https://www.readbyqxmd.com/read/28407054/procalcitonin-as-a-marker-of-etiology-in-adults-hospitalized-with-community-acquired-pneumonia
#5
Wesley H Self, Robert A Balk, Carlos G Grijalva, Derek J Williams, Yuwei Zhu, Evan J Anderson, Grant W Waterer, D Mark Courtney, Anna M Bramley, Christopher Trabue, Sherene Fakhran, Anne J Blaschke, Seema Jain, Kathryn M Edwards, Richard G Wunderink
Background: Recent trials suggest procalcitonin-based guidelines can reduce antibiotic use for respiratory infections. However, the accuracy of procalcitonin to discriminate between viral and bacterial pneumonia requires further dissection. Methods: We evaluated the association between serum procalcitonin concentration at hospital admission with pathogens detected in a multicenter prospective surveillance study of adults hospitalized with community-acquired pneumonia...
April 12, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28397477/real-time-pcr-detection-of-the-most-common-bacteria-and-viruses-causing-meningitis
#6
Oya Akkaya, Hulya Iren Guvenc, Serife Yuksekkaya, Aysegul Opus, Asuman Guzelant, Meral Kaya, Muhammet Guzel Kurtoglu, Nurettin Kaya
BACKGROUND: Central nervous system (CNS) infections require prompt diagnosis, as the clinical condition progresses rapidly and may lead to severe permanent sequelae or death. The causative agents include viruses, bacteria, fungi, and parasites. In this study, samples with the diagnosis of CNS infection based on cerebrospinal fluid (CSF) sent to us from other hospitals/labs, were studied by multiplex real-time Polymerase Chain Reaction (PCR) method. The purpose of this study is to demonstrate, retrospectively, the most common bacteria and viruses causing meningitis and seasonal distribution of these agents using the multiplex real-time PCR method in CSF samples...
April 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/28394553/drug-induced-oral-ulcerations-case-report
#7
Vanja Vučičević Boras, Snježana Židovec-Lepej, Branka Marinović, Sven Seiwerth, Ivana Škrinjar, Dražen Pulanić, Danica Vidović Juras
A 70-year-old patient was admitted to the Department of Oral Medicine for multiple oral ulcerations on the left buccal mucosa, around 0.5 cm in diameter, as well as on the gingiva. Otherwise, the patient suffered from chronic lymphocytic leukemia, hypogammaglobulinemia, chronic renal insufficiency, with complete afunction of the right kidney, asthma, hypertension, gastritis and prostate hyperplasia. Differential diagnosis of oral ulcerations included drug induced oral ulcerations, paraneoplastic pemphigus, viral ulcerations (cytomegalovirus, herpes simplex viruses), fungal ulcerations (candidiasis, aspergillosis, histoplasmosis, cryptococcosis) and bacterial ulcerations, as well as neutropenic ulcers...
June 2016: Acta Clinica Croatica
https://www.readbyqxmd.com/read/28393985/-importance-of-respiratory-virus-in-immunocompetent-adult-patients-hospitalized-with-community-acquired-pneumonia
#8
Fernando Saldías Peñafiel, Marcos Ortega Gutiérrez, Gino Fuentes López, José Manuel Elola Aránguiz, Javier Uribe Monasterio, Arturo Morales Soto, Orlando Díaz Patiño
BACKGROUND: Community-acquired pneumonia (CAP) is a relevant worldwide cause of morbidity and mortality in adult population, however its etiology is often not identified and therapy is empirical. AIM: To assess the etiology of CAP in immunocompetent adult hospitalized patients using conventional and molecular diagnostic methods. MATERIAL AND METHODS: We prospectively studied 240 adult patients who were hospitalized for CAP to identify the microbial etiology...
December 2016: Revista Médica de Chile
https://www.readbyqxmd.com/read/28385463/clinical-and-social-barriers-to-antimicrobial-stewardship-in-pulmonary-medicine-a-qualitative-study
#9
Jennifer K Broom, Alex F Broom, Emma R Kirby, Alexandra F Gibson, Jeffrey J Post
BACKGROUND: The treatment of pulmonary infections is one of the largest indications for antibiotics in human health care, offering significant potential for antibiotic optimization internationally. This study explores the perspectives of pulmonary clinicians on antibiotic use in hospital pulmonary infections. METHODS: Twenty-eight pulmonary doctors and nurses from 2 hospitals participated in semi-structured interviews focusing on their experiences of antibiotic use...
April 3, 2017: American Journal of Infection Control
https://www.readbyqxmd.com/read/28375519/impact-of-type-i-and-iii-interferons-on-respiratory-superinfections-due-to-multidrug-resistant-pathogens
#10
Dane Parker
The increased morbidity and mortality associated with bacterial pneumonias that are acquired following influenza infection are well appreciated by clinicians. One of the major components of the immune response to influenza is the induction of the types I and III interferon cascades, which encompasses the activation of over 300 genes. The immunological consequences of IFN activation, while important for viral clearance, modify the host proinflammatory responses through effects on the inflammasome, Th17 signaling and recruitment of phagocytic cells...
February 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28371525/risk-factors-for-mortality-in-children-with-pneumonia-admitted-to-the-pediatric-intensive-care-unit
#11
Jia Wen Janine Cynthia Koh, Judith Ju-Ming Wong, Rehena Sultana, Petrina Poh Chen Wong, Yee Hui Mok, Jan Hau Lee
AIMS: To describe the epidemiology of children with severe pneumonia and identify risk factors for poor outcomes. METHODS: We conducted a retrospective study of children admitted to pediatric intensive care unit (PICU) from 2010 to 2014 with a diagnosis of pneumonia. Clinical microbiological, ventilation and other pertinent PICU data were collected. Primary outcome was PICU mortality. Univariate and multivariate logistic regression model were used to identify risk factors for mortality...
April 3, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28361440/acid-suppressive-therapy-and-risk-of-infections-pros-and-cons
#12
REVIEW
Leon Fisher, Alexander Fisher
This narrative review summarises the benefits, risks and appropriate use of acid-suppressing drugs (ASDs), proton pump inhibitors and histamine-2 receptor antagonists, advocating a rationale balanced and individualised approach aimed to minimise any serious adverse consequences. It focuses on current controversies on the potential of ASDs to contribute to infections-bacterial, parasitic, fungal, protozoan and viral, particularly in the elderly, comprehensively and critically discusses the growing body of observational literature linking ASD use to a variety of enteric, respiratory, skin and systemic infectious diseases and complications (Clostridium difficile diarrhoea, pneumonia, spontaneous bacterial peritonitis, septicaemia and other)...
March 30, 2017: Clinical Drug Investigation
https://www.readbyqxmd.com/read/28346512/bacterial-and-viral-pathogen-spectra-of-acute-respiratory-infections-in-under-5-children-in-hospital-settings-in-dhaka-city
#13
Golam Sarower Bhuyan, Mohammad Amir Hossain, Suprovath Kumar Sarker, Asifuzzaman Rahat, Md Tarikul Islam, Tanjina Noor Haque, Noorjahan Begum, Syeda Kashfi Qadri, A K M Muraduzzaman, Nafisa Nawal Islam, Mohammad Sazzadul Islam, Nusrat Sultana, Manjur Hossain Khan Jony, Farhana Khanam, Golam Mowla, Abdul Matin, Firoza Begum, Tahmina Shirin, Dilruba Ahmed, Narayan Saha, Firdausi Qadri, Kaiissar Mannoor
The study aimed to examine for the first time the spectra of viral and bacterial pathogens along with the antibiotic susceptibility of the isolated bacteria in under-5 children with acute respiratory infections (ARIs) in hospital settings of Dhaka, Bangladesh. Nasal swabs were collected from 200 under-five children hospitalized with clinical signs of ARIs. Nasal swabs from 30 asymptomatic children were also collected. Screening of viral pathogens targeted ten respiratory viruses using RT-qPCR. Bacterial pathogens were identified by bacteriological culture methods and antimicrobial susceptibility of the isolates was determined following CLSI guidelines...
2017: PloS One
https://www.readbyqxmd.com/read/28346504/diagnostic-accuracy-of-two-multiplex-real-time-polymerase-chain-reaction-assays-for-the-diagnosis-of-meningitis-in-children-in-a-resource-limited-setting
#14
Jermaine Khumalo, Mark Nicol, Diana Hardie, Rudzani Muloiwa, Phindile Mteshana, Colleen Bamford
INTRODUCTION: Accurate etiological diagnosis of meningitis is important, but difficult in resource-limited settings due to prior administration of antibiotics and lack of viral diagnostics. We aimed to develop and validate 2 real-time multiplex PCR (RT-PCR) assays for the detection of common causes of community-acquired bacterial and viral meningitis in South African children. METHODS: We developed 2 multiplex RT- PCRs for detection of S. pneumoniae, N. meningitidis, H...
2017: PloS One
https://www.readbyqxmd.com/read/28342288/the-role-of-acute-and-chronic-respiratory-colonization-and-infections-in-the-pathogenesis-of-copd
#15
REVIEW
Janice M Leung, Pei Yee Tiew, Micheál Mac Aogáin, Kurtis F Budden, Valerie Fei Lee Yong, Sangeeta S Thomas, Kevin Pethe, Philip M Hansbro, Sanjay H Chotirmall
COPD is a major global concern, increasingly so in the context of ageing populations. The role of infections in disease pathogenesis and progression is known to be important, yet the mechanisms involved remain to be fully elucidated. While COPD pathogens such as Haemophilus influenzae, Moraxella catarrhalis and Streptococcus pneumoniae are strongly associated with acute exacerbations of COPD (AECOPD), the clinical relevance of these pathogens in stable COPD patients remains unclear. Immune responses in stable and colonized COPD patients are comparable to those detected in AECOPD, supporting a role for chronic colonization in COPD pathogenesis through perpetuation of deleterious immune responses...
March 25, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28298903/apoptosis-toll-like-rig-i-like-and-nod-like-receptors-are-pathways-jointly-induced-by-diverse-respiratory-bacterial-and-viral-pathogens
#16
Isidoro Martínez, Juan C Oliveros, Isabel Cuesta, Jorge de la Barrera, Vicente Ausina, Cristina Casals, Alba de Lorenzo, Ernesto García, Belén García-Fojeda, Junkal Garmendia, Mar González-Nicolau, Alicia Lacoma, Margarita Menéndez, David Moranta, Amelia Nieto, Juan Ortín, Alicia Pérez-González, Cristina Prat, Elisa Ramos-Sevillano, Verónica Regueiro, Ariel Rodriguez-Frandsen, Dolores Solís, José Yuste, José A Bengoechea, José A Melero
Lower respiratory tract infections are among the top five leading causes of human death. Fighting these infections is therefore a world health priority. Searching for induced alterations in host gene expression shared by several relevant respiratory pathogens represents an alternative to identify new targets for wide-range host-oriented therapeutics. With this aim, alveolar macrophages were independently infected with three unrelated bacterial (Streptococcus pneumoniae, Klebsiella pneumoniae, and Staphylococcus aureus) and two dissimilar viral (respiratory syncytial virus and influenza A virus) respiratory pathogens, all of them highly relevant for human health...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28290951/pneumonia-at-marine-corps-recruit-depots-current-trends-in-ambulatory-encounters-and-inpatient-discharges
#17
Kristen Rossi, Gosia Nowak, Asha Jindal Riegodedios
BACKGROUND: Acute respiratory infections are recognized as a significant source of morbidity for military populations, particularly for recruits. This analysis aims to describe the pneumonia burden at Marine Corps Recruit Depots (MCRD) in Parris Island and San Diego during 2007-2014, as these two depots maintain noteworthy comparisons in vaccine and prophylaxis policies. First, both depots reinstated the adenovirus vaccine in October 2011. Second, San Diego provides the pneumococcal polysaccharide vaccine to all recruits within the first 2 days of arrival, although Parris Island does not routinely vaccinate for Streptococcus pneumoniae...
March 2017: Military Medicine
https://www.readbyqxmd.com/read/28282407/potential-disease-agents-in-domestic-goats-and-relevance-to-bighorn-sheep-ovis-canadensis-management
#18
Mark L Drew, Glen C Weiser
Domestic goats are raised for meat, milk and hair production, in herds for rangeland weed control, and as pack animals. Domestic sheep, goats and wild bighorn sheep are all susceptible to a multifactorial pneumonia. We sampled 43 herd goats from 7 herds and 48 pack goats from 11 herds for viral and bacterial serology, parasitology, and Pasteurellaceae microbiology. The goats in this study were in generally good health, although most goats did harbor various pathogens and parasites including several bacteria, specifically Pasteurellaceae, which have been associated with pneumonia in free-ranging bighorn sheep...
2017: PloS One
https://www.readbyqxmd.com/read/28281094/clinical-features-and-inflammatory-markers-in-pediatric-pneumonia-a-prospective-study
#19
Are Stuwitz Berg, Christopher Stephen Inchley, Hans Olav Fjaerli, Truls Michael Leegaard, Morten Lindbaek, Britt Nakstad
In this prospective, observational study on previously healthy children <18 years, we aimed to study the diagnostic ability of clinical features and inflammatory markers to (i) predict pathologic chest radiography in suspected pneumonia and (ii) differentiate etiology in radiological proven pneumonia. In 394 cases of suspected pneumonia, 265 (67%) had radiographs consistent with pneumonia; 34/265 had proof of bacterial etiology. Of the cases, 86.5% had received pneumococcal conjugate vaccine. In suspected pneumonia, positive chest radiography was significantly associated with increasing C-reactive protein (CRP) values, higher age, and SpO2 ≤92% in multivariate logistic regression, OR 1...
March 9, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28279802/prevention-of-influenza-virus-induced-bacterial-superinfection-by-standardized-echinacea-purpurea-via-regulation-of-surface-receptor-expression-in-human-bronchial-epithelial-cells
#20
Selvarani Vimalanathan, Roland Schoop, Andy Suter, James Hudson
Viral infections may predispose the airways to secondary bacterial infections that can lead to unfavorable progression of principally self-limiting illnesses. Such complicated respiratory infections include pneumonia, bronchitis, sinusitis, acute otitis media, and sepsis, which cause high morbidity and lethality. Some of the pathogenic consequences of viral infections, like the expression of bacterial adhesion receptors and the disturbance of physical barrier integrity due to inflammation, may create permissive conditions for co-infections...
March 7, 2017: Virus Research
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