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https://www.readbyqxmd.com/read/28646325/anti-tuberculosis-bacteriophage-d29-delivery-with-a-vibrating-mesh-nebulizer-jet-nebulizer-and-soft-mist-inhaler
#1
Nicholas B Carrigy, Rachel Y Chang, Sharon S Y Leung, Melissa Harrison, Zaritza Petrova, Welkin H Pope, Graham F Hatfull, Warwick J Britton, Hak-Kim Chan, Dominic Sauvageau, Warren H Finlay, Reinhard Vehring
PURPOSE: To compare titer reduction and delivery rate of active anti-tuberculosis bacteriophage (phage) D29 with three inhalation devices. METHODS: Phage D29 lysate was amplified to a titer of 11.8 ± 0.3 log10(pfu/mL) and diluted 1:100 in isotonic saline. Filters captured the aerosolized saline D29 preparation emitted from three types of inhalation devices: 1) vibrating mesh nebulizer; 2) jet nebulizer; 3) soft mist inhaler. Full-plate plaque assays, performed in triplicate at multiple dilution levels with the surrogate host Mycobacterium smegmatis, were used to quantify phage titer...
June 23, 2017: Pharmaceutical Research
https://www.readbyqxmd.com/read/28644389/chronic-respiratory-infection-in-patients-with-chronic-obstructive-pulmonary-disease-what-is-the-role-of-antibiotics
#2
REVIEW
Marc Miravitlles, Antonio Anzueto
Chronic infections are associated with exacerbation in patients with chronic obstructive pulmonary disease (COPD). The major objective of the management of these patients is the prevention and effective treatment of exacerbations. Patients that have increased sputum production, associated with purulence and worsening shortness of breath, are the ones that will benefit from antibiotic therapy. It is important to give the appropriate antibiotic therapy to prevent treatment failure, relapse, and the emergence of resistant pathogens...
June 23, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28643178/economic-evaluation-of-tobramycin-inhalation-powder-for-the-treatment-of-chronic-pulmonary-pseudomonas-aeruginosa-infection-in-patients-with-cystic-fibrosis
#3
Srilekha Panguluri, Praveen Gunda, Laurie Debonnett, Kamal Hamed
BACKGROUND: Chronic lung infection with Pseudomonas aeruginosa occurs in approximately 50% of patients with cystic fibrosis (CF). This infection further compromises lung function, and significantly contributes to the increased healthcare costs. OBJECTIVES: Inhaled tobramycin, used to manage P. aeruginosa infection in CF patients, is available as powder (tobramycin inhalation powder, TIP) and solution (tobramycin inhalation solution, TIS). Evidence suggests increased adherence with the use of TIP over TIS...
June 22, 2017: Clinical Drug Investigation
https://www.readbyqxmd.com/read/28634121/population-pharmacokinetics-of-tobramycin-inhalation-solution-in-pediatric-patients-with-cystic-fibrosis
#4
Xinting Wang, Stephan Koehne-Voss, SivaNaga S Anumolu, Jing Yu
Tobramycin inhalation solution (TOBI) given as a twice-daily inhalation of nebulized aerosols of 300 mg is approved for the treatment of Pseudomonas aeruginosa infection in cystic fibrosis (CF) patients over 6 years of age. To investigate tobramycin pharmacokinetics (PK) after inhalation of TOBI in pediatric CF patients below 7 years, a population PK approach was used to evaluate tobramycin PK data in patients 6 months to 44 years of age from four clinical studies. The final model used a two-compartmental, first-order absorption model with effect of body mass index on the apparent central volume of distribution...
June 17, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28632907/preferential-aerosolization-of-bacteria-in-bioaerosols-generated-in-vitro
#5
P Perrott, N Turgeon, L Gauthier-Levesque, C Duchaine
AIMS: Little is known about how bacteria are aerosolized in terms of whether some bacteria will be found in the air more readily than others that are present in the source. This report describes in vitro experiments to compare aerosolization rates (also known as preferential aerosolization) of Gram-positive and Gram negative bacteria as well as rod and coccus shaped bacteria, using two nebulization conditions. METHODS AND RESULTS: A consortium of five bacterial species was aerosolized in a homemade chamber...
June 20, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/28627376/inhaled-salbutamol-dose-delivered-by-jet-nebulizer-vibrating-mesh-nebulizer-and-metered-dose-inhaler-with-spacer-during-invasive-mechanical-ventilation
#6
Muhammad E ElHansy, Marina Emad, Assem Fouad Mohamed El Essawy, Mohamed Bakry Al-Kholy, Maha M Abdelrahman, Amira S A Said, Raghda R S Hussein, Mohamed E Abdelrahim
BACKGROUND: Patient receiving invasive mechanical ventilation (IMV) may benefit from medical aerosol, but guidance on dosing with different aerosol devices is limited to in-vitro studies. The study was designed to compare aerosol delivery with five different types of aerosol generators during IMV. METHOD: In randomized design, 60 (30 female) mechanically ventilated chronic obstructive pulmonary disease (COPD) patients were assigned to one of 5 groups. Groups 1-4 received 5000 μg salbutamol using Aerogen Pro (PRO), Aerogen Solo (SOLO), NIVO vibrating mesh and jet nebulizers (JN), respectively, while group 5 received 800 μg (8 puffs) of salbutamol via metered dose inhaler with AeroChamber-MV (MDI-AC)...
June 13, 2017: Pulmonary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28627354/-principle-and-influence-factors-of-aerosolized-antibiotics-in-the-treatment-of-ventilator-associated-pneumonia
#7
Chang Liu, Yuting Zhang, Jianguo Li
Ventilator associated pneumonia (VAP) is a challenging complication of critical illness. Aerosolized antibiotic is an option for the management of VAP currently, as it is reported that it could increase levels of drug in alveolar without increasing systemic toxicity. The articles that focused on the aerosolized antibiotics in the treatment of VAP and its influence factors were reviewed, and it was found that to achieve maximum drug delivery efficiency and reduce the influence of nebulization method, some factors, such as ventilation modes, tidal volume, nebulizer type, should be adjusted and monitored during the treatment...
March 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28614995/ease-of-use-of-tobramycin-inhalation-powder-compared-with-nebulized-tobramycin-and-colistimethate-sodium-a-crossover-study-in-cystic-fibrosis-patients-with-pulmonary-pseudomonas-aeruginosa-infection
#8
James Greenwood, Carsten Schwarz, Urte Sommerwerck, Edward F Nash, Michael Tamm, Weihua Cao, Paul Mastoridis, Laurie Debonnett, Kamal Hamed
BACKGROUND: This study assessed the ease of use of tobramycin inhalation powder (TIP) administered via T-326 inhaler versus tobramycin inhalation solution (TIS) and colistimethate sodium (COLI), both administered via nebulizers, for the treatment of chronic pulmonary Pseudomonas aeruginosa infection in patients with cystic fibrosis (CF). METHODS: A real-world, open-label, crossover, interventional phase IV study was conducted in CF patients aged ⩾6 years with forced expiratory volume in 1 second (FEV1) ⩾25% to ⩽90% predicted...
July 2017: Therapeutic Advances in Respiratory Disease
https://www.readbyqxmd.com/read/28614632/high-pressure-nebulization-as-application-route-for-the-peritoneal-administration-of-sirna-complexes
#9
An-Katrien Minnaert, George R Dakwar, Juan M Benito, José M García Fernández, W Ceelen, Stefaan C De Smedt, Katrien Remaut
Peritoneal carcinomatosis is a severe form of cancer in the abdomen, currently treated with cytoreductive surgery and intravenous chemotherapy. Recently, nebulization has been proposed as a less invasive strategy for the local delivery of chemotherapeutic drugs. Also, RNA interference has been considered as a potential therapeutic approach for treatment of cancer. In this study, Lipofectamine RNAiMAX/siRNA complexes and cyclodextrin/siRNA complexes are evaluated before and after nebulization. Nebulization of the siRNA complexes does not significantly lower transfection efficiency when compared to non-nebulized complexes...
June 14, 2017: Macromolecular Bioscience
https://www.readbyqxmd.com/read/28609635/spx-101-is-a-promising-and-novel-nebulized-enac-inhibitor
#10
Alison Lennox, Mike M Myerburg
No abstract text is available yet for this article.
June 13, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28607943/poor-adherence-with-medication-refill-and-medical-supplies-maintenance-as-risk-factors-for-inpatient-asthma-admission-in-children
#11
Pavadee Poowuttikul, Benjamin Hart, Ronald Thomas, Elizabeth Secord
Background. Asthma results in significant pediatric hospitalizations in the inner city. Many asthmatic children were admitted to our hospital as a result of lack of medications or medical supplies that had been previously prescribed ("ran out," "broken," or "lost"). Objective. To identify the incidence of children admitted for asthma because of lack of prescribed medications/supplies and to assess risk factors for poor adherence between groups. Methods. This was a prospective chart review of 200 asthmatic children admitted to Children's Hospital of Michigan, Detroit...
2017: Global Pediatric Health
https://www.readbyqxmd.com/read/28602287/optimization-of-plasma-sampling-depth-and-aerosol-gas-flow-rates-for-single-particle-inductively-coupled-plasma-mass-spectrometry-analysis
#12
Ildikó Kálomista, Albert Kéri, Gábor Galbács
We performed experiments to assess the separate and also the combined effect of the sampling depth and the aerosol gas flow rates on the signal formation in single particle inductively coupled plasma mass spectrometry (spICP-MS) measurements by using dispersions containing Ag and Au NPs. It was found that the NP signal can significantly be improved by the optimization of the sampling depth. With respect to the "robust" setting, a signal improvement of nearly 100% could be achieved, which translates into a 25-30% improvement in size detection limits...
September 1, 2017: Talanta
https://www.readbyqxmd.com/read/28598050/consensus-document-on-home-nebulization-for-maintenance-treatment-of-obstructive-airway-diseases-a-joint-initiative-by-the-national-allergy-asthma-bronchitis-institute-naabi-and-chest-research-foundation-crf
#13
Aloke G Ghoshal, Sundeep Salvi, Raja Dhar, Randeep Guleria, Ashok Mahashur, Anshuman Mukhopadhyay, Rmpl Ramanathan
Recent years have seen an increase in the use of nebulizers for delivering maintenance therapy in obstructive airway diseases (OADs) such as asthma and chronic obstructive pulmonary disease (COPD). The probable factors associated with this increase at home are: convenience of drug delivery, technological advances making the nebulizer equipment more efficient and portable, increase in the prevalence of OADs and the ageing population which may impact the optimal use of handheld inhalers such as pressurized metered dose inhalers (pMDIs) and dry powder inhalers (DPIs)...
May 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/28597762/the-safety-and-pharmacokinetics-of-rapid-iloprost-aerosol-delivery-via-the-breelib-nebulizer-in-pulmonary-arterial-hypertension
#14
Tobias Gessler, Hossein-Ardeschir Ghofrani, Matthias Held, Hans Klose, Hanno Leuchte, Horst Olschewski, Stephan Rosenkranz, Lueder Fels, Na Li, Dawn Ren, Andreas Kaiser, Marcus-Hillert Schultze-Mosgau, Bernhard Müllinger, Beate Rohde, Werner Seeger
The BREELIB nebulizer was developed for iloprost to reduce inhalation times for patients with pulmonary arterial hypertension (PAH). This multicenter, randomized, unblinded, four-part study compared inhalation time, pharmacokinetics, and acute tolerability of iloprost 5 µg at mouthpiece delivered via BREELIB versus the standard I-Neb nebulizer in 27 patients with PAH. The primary safety outcome was the proportion of patients with a maximum increase in heart rate (HR) ≥ 25% and/or a maximum decrease in systolic blood pressure ≥ 20% within 30 min after inhalation...
April 2017: Pulmonary Circulation
https://www.readbyqxmd.com/read/28592015/-clinical-manifestations-of-three-cases-of-surfactant-protein-c-p-v39l-mutation
#15
J H Chen, D Y Zhao, S H An, Y J Zheng, H P Wang, H L Ma
Objective: To investigate the clinical manifestations of surfactant protein C gene (SFTPC) exon-2 c. 115G>G/T (p.V39L). Method: Patients were screened for the entire coding sequence of SFTPC. Three cases from three children's hospital with mutation in p. V39L were reported. Result: All the three cases were females. The age of onset ranged from 2 months to 7 years. Two cases had recurrent lower respiratory tract infection and failed to thrive. One had chronic anoxia and clubbing fingers. Chest computed tomography (CT) showed diffused ground glass pattern, localized emphysema and intralobular septal thickening...
June 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/28589136/low-molecular-weight-heparin-nebulization-attenuates-acute-lung-injury
#16
Nianlin Xie, Menglei Huan, Feng Tian, Zhongping Gu, Xiaofei Li
BACKGROUND: As acute lung injury (ALI) caused high mortality rate, it is important to explore the protection and treatment of ALI. The aim of the current study is to evaluate the effect of low molecular weight heparin (LMWH) nebulization on attenuating acute lung injury and the associated mechanism. METHODS: The arterial blood gas, total protein content in bronchoalveolar lavage fluid, lung wet/dry weight ratio, malondialdehyde (MDA) content, superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) activity, and Akt phosphorylation were evaluated after the ALI rabbits were treated with or without LMWH nebulization...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28588117/aerosol-delivery-through-adult-high-flow-nasal-cannula-with-heliox-and-oxygen
#17
Patricia A Dailey, Robert Harwood, Kyle Walsh, James B Fink, Tina Thayer, Greg Gagnon, Arzu Ari
BACKGROUND: Heliox (helium-oxygen mixture) has been shown to reduce turbulence and improve aerosol delivery in a range of clinical settings. We questioned whether heliox as compared with oxygen via high-flow nasal cannula (HFNC) would affect aerosol delivery. We hypothesized that heliox would have a significant effect on aerosol delivery as compared with oxygen with both quiet and distressed breathing patterns. METHODS: A vibrating mesh nebulizer was placed at the inlet of a humidifier via HFNC with small adult cannula distal to the heated-wire circuit with prongs placed into simulated nares with a T-shaped trap and absolute filter connected to a breath simulator set to adult quiet and distressed breathing parameters...
June 6, 2017: Respiratory Care
https://www.readbyqxmd.com/read/28586918/effect-of-nebulized-hypertonic-saline-treatment-in-emergency-departments-on-the-hospitalization-rate-for-acute-bronchiolitis-a-randomized-clinical-trial
#18
François Angoulvant, Xavier Bellêttre, Karen Milcent, Jean-Paul Teglas, Isabelle Claudet, Christèle Gras Le Guen, Loïc de Pontual, Philippe Minodier, François Dubos, Jacques Brouard, Valérie Soussan-Banini, Vanessa Degas-Bussiere, Amélie Gatin, Cyril Schweitzer, Ralph Epaud, Amélie Ryckewaert, Pierrick Cros, Yves Marot, Philippe Flahaut, Pascal Saunier, Philippe Babe, Géraldine Patteau, Mathilde Delebarre, Luigi Titomanlio, Bénédicte Vrignaud, Thanh-Van Trieu, Abdelilah Tahir, Delphine Regnard, Pascale Micheau, Oussama Charara, Simon Henry, Dominique Ploin, Henri Panjo, Astrid Vabret, Jean Bouyer, Vincent Gajdos
Importance: Acute bronchiolitis is the leading cause of hospitalization among infants. Previous studies, underpowered to examine hospital admission, have found a limited benefit of nebulized hypertonic saline (HS) treatment in the pediatric emergency department (ED). Objective: To examine whether HS nebulization treatment would decrease the hospital admission rate among infants with a first episode of acute bronchiolitis. Design, Setting, and Participants: The Efficacy of 3% Hypertonic Saline in Acute Viral Bronchiolitis (GUERANDE) study was a multicenter, double-blind randomized clinical trial on 2 parallel groups conducted during 2 bronchiolitis seasons (October through March) from October 15, 2012, through April 15, 2014, at 24 French pediatric EDs...
June 5, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28583257/in-vitro-and-in-vivo-comparison-of-two-nebulizers-used-for-inhaled-pentamidine-delivery
#19
Nicolas Audag, Giuseppe Liistro, Dimitri Van der Linden, Françoise Smets, Teresinha Leal, Gregory Reychler
No abstract text is available yet for this article.
June 2, 2017: Archivos de Bronconeumología
https://www.readbyqxmd.com/read/28579158/protective-strategies-against-dysphonia-in-teachers-preliminary-results-comparing-voice-amplification-and-0-9-nacl-nebulization
#20
Maria Lúcia Vaz Masson, Tânia Maria de Araújo
OBJECTIVE: This study aimed to compare the effects of two protective strategies, voice amplification (VA) and 0.9% NaCl nebulization (NEB), on teachers' voice in the work setting. METHODS: An interventional evaluator-blind study was conducted, assigning 53 teachers from two public high schools to one of the two protective strategy groups (VA or NEB). Vocal function was assessed in a sound-treated booth before and after a 4-week period. Assessment included the severity of voice impairment (Consensus Auditory-Perceptual Evaluation of Voice [CAPE-V]), acoustic analysis of fundamental frequency (f0), sound pressure level (SPL), jitter, shimmer, glottal-to-noise excitation ratio (GNE), noise (VoxMetria), and the self-rated Screening Index for Voice Disorder (SIVD)...
May 31, 2017: Journal of Voice: Official Journal of the Voice Foundation
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