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predictors of viral respiratory

Anıl Er, Aykut Çağlar, Fatma Akgül, Emel Ulusoy, Hale Çitlenbik, Durgül Yılmaz, Murat Duman
AIM: High-flow nasal cannula (HFNC) is a new treatment option for pediatric respiratory distress and we aimed to assess early predictive factors of unresponsiveness to HFNC therapy in a pediatric emergency department (ED). METHOD: Patients who presented with respiratory distress and were treated by HFNC, were included. The age, gender, weight, medical history, diagnosis, vital signs, oxygen saturation/fraction of inspired oxygen (SpO2 /FiO2 ) ratio, modified Respiratory Distress Assessment Instrument (mRDAI) scores, medical interventions, duration of HFNC therapy, time to escalation, adverse effects, and laboratory test results were obtained from medical and nursing records...
March 12, 2018: Pediatric Pulmonology
Emma Kallvik, Laura Toivonen, Ville Peltola, Anne Kaljonen, Susanna Simberg
OBJECTIVES: Health-related factors are part of the multifactorial background of dysphonia in children. Respiratory tract infections affect the same systems and structures that are used for voice production. The purpose of this study was to investigate if the number of respiratory tract infections or the viral etiology were significant predictors for a more hoarse voice quality. METHODS: The participants were 4-year-old children who participated in the multidisciplinary STEPS study (Steps to the Healthy Development and Well-being of Children) where they were followed up from pregnancy or birth to 4 years of age...
March 2, 2018: Journal of Voice: Official Journal of the Voice Foundation
Kim Tien Ng, Xiang Yong Oong, Sin How Lim, Jack Bee Chook, Yutaka Takebe, Yoke Fun Chan, Kok Gan Chan, Nik Sherina Hanafi, Yong Kek Pang, Adeeba Kamarulzaman, Kok Keng Tee
Background: Rhinovirus (RV) is one of the main viral etiologic agents of acute respiratory illnesses. Despite the heightened disease burden caused by RV, the viral factors that increase the severity of RV infection, the transmission pattern and seasonality of RV infections remain unclear. Methods: An observational study was conducted among 3,935 patients presenting with acute upper respiratory illnesses in the ambulatory settings between 2012 and 2014. Results: The VP4/VP2 gene was genotyped from all 976 RV-positive specimens, where the predominance of RV-A (49%) was observed, followed by RV-C (38%) and RV-B (13%)...
January 29, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
Jing Yan, Michael Grantham, Jovan Pantelic, P Jacob Bueno de Mesquita, Barbara Albert, Fengjie Liu, Sheryl Ehrman, Donald K Milton
Little is known about the amount and infectiousness of influenza virus shed into exhaled breath. This contributes to uncertainty about the importance of airborne influenza transmission. We screened 355 symptomatic volunteers with acute respiratory illness and report 142 cases with confirmed influenza infection who provided 218 paired nasopharyngeal (NP) and 30-minute breath samples (coarse >5-µm and fine ≤5-µm fractions) on days 1-3 after symptom onset. We assessed viral RNA copy number for all samples and cultured NP swabs and fine aerosols...
January 30, 2018: Proceedings of the National Academy of Sciences of the United States of America
Thomas H A Ederveen, Gerben Ferwerda, Inge M Ahout, Marloes Vissers, Ronald de Groot, Jos Boekhorst, Harro M Timmerman, Martijn A Huynen, Sacha A F T van Hijum, Marien I de Jonge
BACKGROUND: While almost all infants are infected with respiratory syncytial virus (RSV) before the age of 2 years, only a small percentage develops severe disease. Previous studies suggest that the nasopharyngeal microbiome affects disease development. We therefore studied the effect of the nasopharyngeal microbiome on viral load and mucosal cytokine responses, two important factors influencing the pathophysiology of RSV disease. To determine the relation between (i) the microbiome of the upper respiratory tract, (ii) viral load, and (iii) host mucosal inflammation during an RSV infection, nasopharyngeal microbiota profiles of RSV infected infants (< 6 months) with different levels of disease severity and age-matched healthy controls were determined by 16S rRNA marker gene sequencing...
January 11, 2018: Microbiome
R M Blackburn, H Zhao, R Pebody, A C Hayward, C Warren-Gash
Background: Acute respiratory infections are associated with increased risk of myocardial infarction (MI) and stroke, however, the role of different organisms is poorly characterised. Methods: We undertook a time-series analysis of English hospital admissions for MI and stroke (age-stratified: 45-64, 65-74, 75+ years), laboratory-confirmed viral respiratory infections and environmental data for 2004-2015. Weekly counts of admissions were modelled using multivariable Poisson regression with weekly counts of respiratory viruses (influenza, parainfluenza, rhinovirus, respiratory syncytial virus (RSV), adenovirus or human meta-pneumovirus (HMPV)) investigated as predictors...
January 6, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
Miriam Gómez-Novo, José A Boga, Marta E Álvarez-Argüelles, Susana Rojo-Alba, Ana Fernández, María J Menéndez, María de Oña, Santiago Melón
OBJECTIVES: Human respiratory syncytial virus (HRSV) is a common cause of respiratory infections. The main objective is to analyze the prediction ability of viral load of HRSV normalized by cell number in respiratory symptoms. STUDY DESIGN: A prospective, descriptive and analytical study was performed. From 7307 respiratory samples processed between December 2014 to April 2016, 1019 HRSV-positive samples, were included in this study. Low respiratory tract infection was present in 729 patients (71...
January 5, 2018: Journal of Medical Virology
Viral Sangwan, Dhruva Chaudhry, Roopa Malik
Introduction: Acute exacerbations of chronic obstructive pulmonary disease (AECOPD) being common and often fatal, prognostic tools in AECOPD are lacking. Materials and Methods: A prospective, observational study was carried out in fifty patients of AECOPD admitted in A and E department. Dyspnea, Eosinopenia, Consolidation, Acidemia and atrial Fibrillation (DECAF) score and elevated blood urea nitrogen, altered mental status, pulse >109, age >65 (BAP-65) score were calculated...
October 2017: Indian Journal of Critical Care Medicine
Marisa Passos Silva, Daniel Caeiro, Paula Fernandes, Cláudio Guerreiro, Eduardo Vilela, Marta Ponte, Adelaide Dias, Fernando Alves, Jorge Morais, Andreza Mello, Lino Santos, Paula Castelões, Vasco Gama
INTRODUCTION: Extracorporeal membrane oxygenation (ECMO) provides mechanical pulmonary and circulatory support for patients with shock refractory to conventional medical therapy. In this study we aim to describe the indications, clinical characteristics, complications and mortality associated with use of ECMO in a single tertiary hospital. METHODS: We conducted a retrospective observational cohort study of all patients supported with ECMO in two different intensive care units (general and cardiac), from the first patient cannulated in April 2011 up to October 2016...
November 7, 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
P Mkoko, R I Raine
BACKGROUND: The indications for and outcomes of intensive care unit (ICU) admission of HIV-positive patients in resource-poor settings such as sub-Saharan Africa are unknown. OBJECTIVE: To identify indications for ICU admission and determine factors associated with high ICU and hospital mortality in HIV-positive patients. METHODS: We reviewed case records of HIV-positive patients admitted to the medical and surgical ICUs at Groote Schuur Hospital, Cape Town, South Africa, from 1 January 2012 to 31 December 2012...
September 22, 2017: South African Medical Journal, Suid-Afrikaanse Tydskrif Vir Geneeskunde
Carlos E Rodríguez-Martínez, Ranniery Acuña-Cordero, Monica P Sossa-Briceño
BACKGROUND: Length of hospital stay and readmissions are outcome measures that have been largely overlooked in many studies that have evaluated the clinical evolution of pediatric patients with bronchopulmonary dysplasia (BPD). The aim of the present study was to identify predictors of prolonged hospitalizations or readmissions for acute lower respiratory infections (ALRIs) in infants with BPD. METHODS: In a prospective cohort study, we determined independent predictors of prolonged hospitalizations or readmissions for ALRIs during the first two years of life in a population of infants with BPD living in Bogota, Colombia...
October 3, 2017: Journal of Medical Virology
Kristen Fisher, Tracy Trupka, Scott T Micek, Paul Juang, Marin H Kollef
BACKGROUND: Pneumonia and respiratory failure are common problems in the intensive care unit (ICU) setting, often occurring together. The relative prevalence of pneumonia types (community acquired, hospital acquired, ventilator associated) and causative pathogens is not well described in patients with respiratory failure. METHODS: This was a prospective observational cohort study conducted in the medical ICU (34 beds) of Barnes-Jewish Hospital, an academic referral center of 1,300 beds from January 2016-December 2016...
October 2017: Surgical Infections
Ki-Ho Hong, Jae-Phil Choi, Seon-Hui Hong, Jeewon Lee, Ji-Soo Kwon, Sun-Mi Kim, Se Yoon Park, Ji-Young Rhee, Baek-Nam Kim, Hee Jung Choi, Eui-Cheol Shin, Hyunjoo Pai, Su-Hyung Park, Sung-Han Kim
We evaluated the clinical characteristics, cytokine/chemokine concentrations, viral shedding and antibody kinetics in 30 patients with Middle East respiratory syndrome (MERS), including 6 non-survivors admitted to 3 MERS-designated hospitals. Old age, low albumin, altered mentality and high pneumonia severity index score at admission were risk factors for mortality. In addition, severe signs of inflammation at initial presentation (at hospital days 1-4), such as high inducible protein-10 (p=0.0013), monocyte chemoattractant protein-1 (p=0...
July 19, 2017: Thorax
Cristiane C Lamas, Lara E Coelho, Beatriz J Grinsztejn, Valdilea G Veloso
Community-acquired pneumonia represents the most frequent bacterial infection in patients with HIV/AIDS. PURPOSE: We aimed to assess variables associated with lower respiratory tract infection (LRTI) among HIV-infected adults using ART. METHODS: A cohort study of HIV-infected patients aged ≥18 years, enrolled from 2000 to 2015, on ART for at least 60 days, with primary outcome as the 1st episode of LRTI during follow-up. The independent variables included were sex at birth, age, race/skin color, educational level, tobacco smoking, alcohol use, cocaine use, diabetes mellitus, CD4 count, HIV viral load, influenza and pneumococcal vaccination...
December 2017: Infection
Julia Korell, Bruce Green, John DeVincenzo, Dymphy Huntjens
Respiratory syncytial virus (RSV) causes acute lower respiratory tract infections, and is a major cause of hospital admissions and death in young children. Limited treatments currently exist that can prevent or minimise exacerbation of the disease. The aims of this work were: 1) to develop a population pharmacodynamic model to describe RSV kinetics (RSVK) in nasal lavage, 2) evaluate the impact of an investigational fusion inhibitor, JNJ-53718678, on RSVK, and 3) determine the relationship between RSVK and symptoms scores...
November 15, 2017: European Journal of Pharmaceutical Sciences
Siraya Jaijakul, Lucrecia Salazar, Susan H Wootton, Elizabeth Aguilera, Rodrigo Hasbun
BACKGROUND: Viral central nervous system (CNS) infections are typically characterized by a cerebrospinal fluid (CSF) lymphocytic pleocytosis. A CSF neutrophilic pleocytosis presentation has been described, but its prognostic and clinical significance is unknown. The objectives of this study were to (1) compare the clinical and laboratory characteristics of viral CNS infections with a CSF neutrophilic pleocytosis to those with a lymphocytic pleocytosis, and (2) evaluate factors associated with an adverse clinical outcome...
June 2017: International Journal of Infectious Diseases: IJID
Daniel J Lachant, Daniel P Croft, Heather McGrane Minton, Paritosh Prasad, Robert M Kottmann
BACKGROUND AND OBJECTIVE: Pulmonary infiltrates are common in immunosuppressed patients. Bronchoscopy with bronchoalveolar lavage (BAL) is often used to evaluate their aetiology. However, it may not always be easily performed. Thus, alternative diagnostic strategies may be needed. There is limited data on the correlation of nasopharyngeal (NP) respiratory viral panel (RVP)-PCR testing compared with BAL. We aimed to identify the predictive value of NP RVP-PCR samples compared with samples obtained from BAL in immunosuppressed patients with pulmonary infiltrates...
August 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
Mera A Ababneh, Sayer I Al-Azzam, Rawan Ababneh, Abeer M Rababa'h, Saddam Al Demour
Background: Most acute respiratory infections (ARIs) in children are due to viral etiology; however, over-prescribing of antibiotics for ARIs is common. The aim of this investigation was to identify antibiotic prescribing prevalence for children with ARIs and to identify predictors of broad-spectrum antibiotic prescribing. Methods: This was a prospective cross sectional study in a sample of ambulatory care settings in Jordan. Children (<18 years) presenting with ARIs were assessed in terms of patient's demographics, antibiotic prescription and clinical diagnosis...
March 1, 2017: International Health
Ranjani Somayaji, Christopher H Goss, Umer Khan, Moni Neradilek, Kathleen M Neuzil, Justin R Ortiz
Background.: Characterization of the role of respiratory viral pathogens on cystic fibrosis (CF) pulmonary disease is needed. We aimed to determine the association of influenza and respiratory syncytial virus (RSV) activity with risk of pulmonary exacerbation (PEx) in persons with CF in the United States. Methods.: We conducted a cohort study from January 2003 to March 2009 using the CF Foundation Patient Registry merged with Centers for Disease Control and Prevention respiratory virus surveillance data...
June 15, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
John C S Harding, Andrea Ladinig, Predrag Novakovic, Susan E Detmer, Jamie M Wilkinson, Tianfu Yang, Joan K Lunney, Graham S Plastow
A large challenge experiment using North American porcine reproductive and respiratory virus (PRRSV-2) provided new insights into the pathophysiology of reproductive PRRS. Deep phenotyping of dams and fetuses identified maternal and fetal predictors of PRRS severity and resilience. PRRSV infection resulted in dramatic decreases in all leukocyte subsets by 2days post inoculation. Apoptosis in the interface region was positively related to endometrial vasculitis, viral load in endometrium and fetal thymus, and odds of meconium staining...
September 2017: Veterinary Microbiology
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