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Acute bronchiolitis

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https://www.readbyqxmd.com/read/28106480/radio-pathological-correlation-of-organising-pneumonia-op-a-pictorial-review
#1
Mohammad Zare Mehrjardi, Shahram Kahkouee, Mihan Pourabdollah
Since the description of cryptogenic organising pneumonia (COP) in 1983 by Davison et al. and the subsequent report on bronchiolitis obliterans organising pneumonia (BOOP) by Epler et al., some reports have been published regarding the imaging features of organising pneumonia (OP). In this pictorial review, we aim to describe different manifestations of OP on high-resolution computed tomography (HRCT) accompanied by their histopathological correlations for a better comprehension of the radiological findings pathomechanism...
January 20, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28104904/-prediction-of-severe-course-in-infants-with-rsv-bronchiolitis-under-6-months-spain
#2
José Miguel Ramos-Fernández, David Moreno-Pérez, Mario Gutiérrez-Bedmar, Alexandra Hernández-Yuste, Ana María Cordón-Martínez, Guillermo Milano-Manso, Antonio Urda-Cardona
OBJECTIVE: The need for mechanical ventilation (MV) in acute bronchiolitis (AB) by respiratory syncytial virus (RSV) varies depending on the series (6-18%). Our goal is to determine the admissions to PICU for MV in patients under 6 months with AB and define the risk factors for building a prediction model. METHODS: Retrospective study of patients younger than 6 months admitted by BA-VRS between the periods April 1, 2010 and March 31, 2015 was made. The primary variable was the admission to PICU for MV...
January 19, 2017: Revista Española de Salud Pública
https://www.readbyqxmd.com/read/28095826/non-invasive-respiratory-support-for-infants-with-bronchiolitis-a-national-survey-of-practice
#3
H Turnham, R S Agbeko, J Furness, J Pappachan, A G Sutcliffe, P Ramnarayan
BACKGROUND: Bronchiolitis is a common respiratory illness of early childhood. For most children it is a mild self-limiting disease but a small number of children develop respiratory failure. Nasal continuous positive airway pressure (nCPAP) has traditionally been used to provide non-invasive respiratory support in these children, but there is little clinical trial evidence to support its use. More recently, high-flow nasal cannula therapy (HFNC) has emerged as a novel respiratory support modality...
January 17, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28092107/rsv-associated-hospitalizations-in-children-in-karachi-pakistan-implications-for-vaccine-prevention-strategies
#4
Asad Ali, Mohammad Tahir Yousafzai, Rabbia Waris, Fatima Jafri, Fatima Aziz, Imran Naeem Abbasi, Anita Zaidi
Major progress is being made in vaccines against Respiratory Syncytial Virus (RSV), with multiple vaccine candidates currently in the clinical phase of development. Making an investment case for public sector financing of RSV vaccine will require estimation of burden, cost-effectiveness and impact. The aim of this study is to determine the proportion, age distribution and clinical spectrum of RSV associated hospitalizations in children in Karachi, Pakistan. A three years prospective study was conducted at the Aga Khan University hospital in Karachi, a city of 20 million in south Pakistan, from August 2009 to June 2012...
January 16, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28087650/simkania-negevensis-may-produce-long-lasting-infections-in-human-pneumocytes-and-endometrial-cells
#5
Manon Vouga, David Baud, Gilbert Greub
Simkania negevensis is a novel Chlamydia-related bacterium and the founding member of the Simkaniaceae family within the Chlamydiales order. Little is known about the biology and pathogenesis of this bacterium. So far, S. negevensis has been considered as an amoebal symbiont, but its natural host remains unknown. Moreover, evidence of human exposition has been reported worldwide and an association with pneumonia and bronchiolitis is suspected. Here, we evaluated the ability of S. negevensis to replicate in potential environmental reservoirs, namely amoebae and arthropods, as well as in mammalian cells (Vero cells, pneumocytes and endometrial cells) and further evaluated the characteristics of its replicative vacuole...
January 12, 2017: Pathogens and Disease
https://www.readbyqxmd.com/read/28011970/zinc-sulphate-for-acute-bronchiolitis-a-double-blind-placebo-controlled-trial
#6
Abolfazl Mahyar, Parviz Ayazi, Negin Khoshbakht Ahmadi, Sara Talebi Pour Nikoo, Samaneh Hamzehloo, Alireza Taremiha, Zohreh Yazdi, Shiva Esmaeily
The use of adjunctive therapies to achieve rapid recovery from clinical symptoms of acute bronchiolitis would appear necessary. This study was performed to determine the effect of zinc sulphate on treating acute bronchiolitis. In this study, 100 children affected with acute bronchiolitis were investigated. Fifty patients received oral zinc sulphate and 50 patients placebo. Signs and symptoms of the disease were compared between two groups at the time of admission and then 24, 48, 72, 96 and 120 hours after the beginning of treatment...
1, 2016: Le Infezioni in Medicina
https://www.readbyqxmd.com/read/28008661/rescue-alemtuzumab-for-refractory-acute-cellular-rejection-and-bronchiolitis-obliterans-syndrome-after-lung-transplantation
#7
Christopher R Ensor, Lindsey C Rihtarchik, Matthew R Morrell, J W Awori Hayanga, Alicia B Lichvar, Joseph M Pilewski, Stephen Wisniewski, Bruce A Johnson, Jonathan D'Cunha, Adriana Zeevi, John F McDyer
Refractory acute-cellular rejection (rACR) is associated with death and bronchiolitis obliterans syndrome (BOS) post-lung transplantation. We report the largest cohort of lung transplant recipients (LTR) treated with rescue alemtuzumab for rACR or BOS. RACR outcomes included burden of ACR 30-days before and 180-days after rescue assessed by a novel composite rejection standardized score (CRSS, range 0-6); freedom from ≥A2 ACR. BOS outcomes included freedom from BOS progression and FEV1 decline >10%. Univariate parametric and nonparametric statistical approaches were used to assess treatment response...
December 23, 2016: Clinical Transplantation
https://www.readbyqxmd.com/read/27941431/role-of-circulating-micrornas-in-the-immunopathogenesis-of-rejection-following-pediatric-lung-transplantation
#8
Zhongping Xu, Wei Yang, Nancy Steward, Stuart C Sweet, Lara Danziger-Isakov, Peter S Heeger, T Mohanakumar
BACKGROUND: Acute rejection (AR) and development of chronic rejection, bronchiolitis obliterans syndrome (BOS), remain major limiting factors for lung transplantation (LTx). This retrospective study is to identify differentially expressed circulating microRNAs (miRNAs) that associate with development of AR and BOS in pediatric lung transplant recipients (LTxR). METHODS: We determined the circulating levels of 7 selected candidate miRNAs in 14 LTxR with AR, 7 with BOS, and compared them against 13 stable pediatric LTxR at 1, 6, and 12 months following LTx...
December 8, 2016: Transplantation
https://www.readbyqxmd.com/read/27940177/-use-of-high-flow-nasal-cannula-in-infants-with-bronchiolitis-in-a-pediatric-emergency-department
#9
M Guimaraes, M Pomedio, M Viprey, L Kanagaratnam, K Bessaci
High-flow nasal cannula oxygen therapy (HFNC) is a technique for noninvasive ventilation commonly used in pediatric intensive care units for respiratory distress, particularly in acute bronchiolitis. HFNC was introduced in the pediatric emergency department of the Reims university hospital for the treatment of infants with moderate to severe acute viral bronchiolitis. This retrospective observational study aimed to investigate the use of HFNC in a pediatric emergency ward, describing the groups of infants with acute viral bronchiolitis to be treated either with conventional oxygen therapy or with HFNC therapy...
January 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/27934561/various-regimens-of-total-body-irradiation-for-hematopoietic-stem-cell-transplant
#10
Naoya Ishibashi, Toshiya Maebayashi, Takuya Aizawa, Masakuni Sakaguchi, Osamu Abe, Kazuyoshi Sakanishi, Yuji Endoh, Tsutomu Saito, Jiro Kawamori, Yoshiaki Tanaka
OBJECTIVES: We aimed to evaluate the safety of total body irradiation before bone marrow transplant. MATERIALS AND METHODS: We analyzed 110 patients (65 male, 45 female) who underwent total body irradiation for hematopoietic stem cell transplant between May 1998 and March 2013. Median age at total body irradiation was 17 years (range, 1-62 y). Median observation time was 777 days (range, 31-5494 d). Initial diagnoses were acute lymphoblastic leukemia (24 patients), acute myeloid leukemia (26 patients), chronic myeloid leukemia (7 patients), myelodysplastic syndrome (8 patients), malignant lymphoma (13 patients), mucopolysaccharidosis (12 patients), neuroblastoma (10 patients), and other diseases (10 patients)...
December 2016: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/27925791/reemergence-of-lower-airway-microbiota-in-lung-transplant-patients-with-cystic-fibrosis
#11
Saad A Syed, Fiona J Whelan, Barbara Waddell, Harvey R Rabin, Michael D Parkins, Michael G Surette
RATIONALE: Chronic lung infections are a hallmark of cystic fibrosis; they are responsible for progressive airway destruction and ultimately lead to respiratory death or the requirement for life-saving bilateral lung transplant. Furthermore, recurrent isolation of airway pathogens such as Pseudomonas aeruginosa in the allograft after transplant is associated with adverse outcomes, including bronchiolitis obliterans syndrome and acute infections. Little information exists on the impact of bilateral lung transplant on the lower-airway microbiota...
December 2016: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/27925447/rehospitalization-of-preterm-infants-according-to-the-discharge-risk-level
#12
Burcu Aykanat Girgin, Güler Cimete
PURPOSE: The rehospitalization rate of preterm infants is between 22 and 52% within the first year after discharge. The purpose of this study was to investigate the rehospitalization of preterm infants within 2 months following discharge, considering the level of risks originating from the infant, parents, and the social factors. DESIGN AND METHODS: The sample was composed of 238 preterm infants and their parents. The data were collected with a Descriptive Information Form, the Post-Discharge Infant Follow-up Form, and the Neonatal Discharge Assessment Tool (N-DAT)...
December 7, 2016: Journal for Specialists in Pediatric Nursing: JSPN
https://www.readbyqxmd.com/read/27916030/-short-term-outcomes-of-lung-transplant-recipients-using-organs-from-brain-death-donors
#13
W X He, C Jiang, X G Liu, W Huang, C Chen, L Jiang, B Yang, K Wu, Q K Chen, Y Yang, Y M Yu, G N Jiang
Objective: To assess short-term outcomes after lung transplantation with organs procured following brain death. Methods: Between April 2015 and July 2016, all 17 recipients after lung transplantation using organs from brain death donors (DBD) at Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine were enrolled in this study. All patients were male, aging (60±7) years, including 11 chronic obstructive pulmonary disease, 5 idiopathic pulmonary fibrosis, 1 silicosis...
December 1, 2016: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/27913141/acute-lung-injury-and-persistent-small-airway-disease-in-a-rabbit-model-of-chlorine-inhalation
#14
Sadiatu Musah, Connie F Schlueter, David M Humphrey, Karen S Powell, Andrew M Roberts, Gary W Hoyle
Chlorine is a pulmonary toxicant to which humans can be exposed through accidents or intentional releases. Acute effects of chlorine inhalation in humans and animal models have been well characterized, but less is known about persistent effects of acute, high-level chlorine exposures. In particular, animal models that reproduce the long-term effects suggested to occur in humans are lacking. Here, we report the development of a rabbit model in which both acute and persistent effects of chlorine inhalation can be assessed...
January 15, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/27893614/the-presence-of-pretransplant-hla-antibodies-does-not-impact-the-development-of-chronic-lung-allograft-dysfunction-or-clad-related-death
#15
Oscar E Zazueta, Sara E Preston, Anna Moniodis, Sabrina Fried, Miae Kim, Keri Townsend, Isabelle Wood, Steve Boukedes, Indira Guleria, Phillip Camp, Souheil El-Chemaly, Ivan O Rosas, Anil Chandraker, Edgar Milford, Hilary J Goldberg
BACKGROUND: Development of Donor-specific Antibodies (DSA) after lung transplantation is associated with antibody mediated rejection (AMR), acute cellular rejection, and bronchiolitis obliterans syndrome (BOS); however, the significance of circulating antibodies before transplant remains unclear. METHODS: We performed a retrospective cohort study including recipients of primary lung transplants between 2008 and 2012.We assessed the impact of circulating human leukocyte (HLA) and noncytotoxic Donor Specific antibodies (DSA) detected before transplant on development of Chronic Lung Allograft Dysfunction (CLAD) or CLAD related death...
November 23, 2016: Transplantation
https://www.readbyqxmd.com/read/27892438/comparison-of-initial-response-of-nebulized-salbutamol-and-adrenaline-in-infants-and-young-children-admitted-with-acute-bronchiolitis
#16
S Adhikari, P Thapa, K S Rao, G Bk
Background Acute bronchiolitis is common cause of hospitalization in infants and young children. There are widespread variations in the diagnosis and management. Despite the use of bronchodilators for decades, there is lack of consensus for the benefit of one above another. Objective To compare initial response of nebulized adrenaline and salbutamol. Method Children aged two months to two years admitted with acute bronchiolitis in the department of Paediatrics of Manipal teaching hospital, Pokhara, Nepal, from 1st March 2014 to 28th February 2015 were enrolled...
January 2016: Kathmandu University Medical Journal (KUMJ)
https://www.readbyqxmd.com/read/27890033/il-8-il-17-gene-variations-and-the-susceptibility-to-severe-viral-bronchiolitis
#17
L A Pinto, L A DE Azeredo Leitão, M Mocellin, P Acosta, M T Caballero, R Libster, J E Vargas, F Polack, T Comaru, R T Stein, A P DE Souza
Clinical manifestations of acute bronchiolitis (AB) vary from minimal disease to severe respiratory failure. The response to respiratory viral infections is possibly influenced by genetic polymorphisms linked to the regulation of the inflammatory response. In the present study, we investigated whether interleukin-8 (IL-8) and interleukin-17 (IL-17) genetic variants are associated with the severity of AB. A group of Brazilian infants hospitalized with AB and a control group (infants with no or mild AB, without hospitalization) were genotyped for four IL-8/IL-17 variations...
November 28, 2016: Epidemiology and Infection
https://www.readbyqxmd.com/read/27889372/-non-invasive-ventilation-in-children-do-we-need-more-evidence
#18
G Mortamet, G Emeriaud, P Jouvet, B Fauroux, S Essouri
Respiratory failure is the leading cause of hospital admissions in the pediatric intensive care unit (PICU) and is associated with significant morbidity and mortality. Mechanical ventilation, preferentially delivered by a non-invasive route (NIV), is currently the first-line treatment for respiratory failure since it is associated with a reduction in the intubation rate. This ventilatory support is increasingly used in the PICU, but its wider use contrasts with the paucity of studies in this field. This review aims to describe the main indications of NIV in acute settings: (i) bronchiolitis; (ii) postextubation respiratory failure; (iii) acute respiratory distress syndrome; (iv) pneumonia; (v) status asthmaticus; (vi) acute chest syndrome; (vii) left heart failure; (viii) exacerbation of chronic respiratory failure; (ix) upper airway obstruction and (x) end-of-life care...
January 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/27885562/respiratory-syncytial-virus-and-influenza-are-the-key-viral-pathogens-in-children-2%C3%A2-years-hospitalized-with-bronchiolitis-and-pneumonia-in-islamabad-pakistan
#19
Uzma Bashir, Nadia Nisar, Yasir Arshad, Muhammad Masroor Alam, Asiya Ashraf, Hajra Sadia, Birjees Mazher Kazi, Syed Sohail Zahoor Zaidi
Pneumonia remains a leading cause of morbidity and mortality in developing countries. Comprehensive surveillance data are needed to review the prevention and control strategies. We conducted active surveillance of acute lower respiratory infections among children aged <2 years hospitalized at two hospitals of Islamabad, Pakistan. Viral etiology was determined using real-time PCR on respiratory specimens collected during March 2011-April 2012. The overall mean age was 7.83 ± 5.25 months while no statistical difference between age or sex distribution of patients with positive and negative viral etiology (p > 0...
November 24, 2016: Archives of Virology
https://www.readbyqxmd.com/read/27884536/-chest-x-ray-and-acute-bronchiolitis-are-these-indications-decreasing
#20
V Arnoux, A Carsin, E Bosdure, K Retornaz, B Chabrol, G Gorincour, J Mancini, A Dabadie, J-C Dubus
OBJECTIVE: A management protocol for infants hospitalized for acute bronchiolitis, established after the study conducted in our unit in 2012, recommends a chest X-ray when the clinical course is unusual or if a differential diagnosis is suspected. The goal of this study was to evaluate professional practices after the introduction of this new management protocol. STUDY DESIGN: Retrospective descriptive study in two pediatric units from October 2013 to March 2015, including infants (0-23 months) hospitalized for their first episode of acute bronchiolitis without any underlying chronic condition...
January 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
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