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https://www.readbyqxmd.com/read/28437767/building-integrated-agriculture-a-first-assessment-of-aerobiological-air-quality-in-rooftop-greenhouses-i-rtgs
#1
Mireia Ercilla-Montserrat, Rebeca Izquierdo, Jordina Belmonte, Juan Ignacio Montero, Pere Muñoz, Concepción De Linares, Joan Rieradevall
Building-integrated rooftop greenhouse (i-RTG) agriculture has intensified in recent years, due to the growing interest in the development of new agricultural spaces and in the promotion of food self-sufficiency in urban areas. This paper provides a first assessment of the indoor dynamics of bioaerosols in an i-RTG, with the aim of evaluating biological air quality in a tomato greenhouse near Barcelona. It evaluates the greenhouse workers' exposure to airborne pollen and fungal spores in order to prevent allergy problems associated with occupational tasks...
April 21, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28437650/indoor-to-outdoor-relationship-of-aerosol-particles-inside-a-naturally-ventilated-apartment-a-comparison-between-single-parameter-analysis-and-indoor-aerosol-model-simulation
#2
Tareq Hussein
The indoor-to-outdoor relationship of aerosol particles is affected by several mechanisms including penetration, ventilation rate, dry deposition rate and sources. Understanding the effect of these factors is essential for a deeper knowledge of the indoor-to-outdoor relationship. In real-life conditions, it is difficult to analyze these factors in a naturally ventilated environment. In this study, a naturally ventilated and an occupied apartment was used to investigate the indoor-to-outdoor relationship of aerosol particles by applying two different techniques; single-parameter analysis and indoor aerosol model simulation...
April 21, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28437631/age-independent-anti-m%C3%A3-llerian-hormone-amh-standard-deviation-scores-to-estimate-ovarian-function
#3
Josef van Helden, Ralf Weiskirchen
OBJECTIVIES: To determine single year age-specific anti-Müllerian hormone (AMH) standard deviation scores (SDS) for women associated to normal ovarian function and different ovarian disorders resulting in sub- or infertility. DESIGN AND METHODS: Determination of particular year median and mean AMH values with standard deviations (SD), calculation of age-independent cut off SDS for the discrimination between normal ovarian function and ovarian disorders. RESULTS: Single-year-specific median, mean, and SD values have been evaluated for the Beckman Access AMH immunoassay...
April 18, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28437539/safety-and-efficacy-of-antiviral-therapy-for-prevention-of-cytomegalovirus-reactivation-in-immunocompetent-critically-ill-patients-a-randomized-clinical-trial
#4
Nicholas J Cowley, Andrew Owen, Sarah C Shiels, Joanne Millar, Rebecca Woolley, Natalie Ives, Husam Osman, Paul Moss, Julian F Bion
Importance: Latent cytomegalovirus (CMV) infection is present in more than half the adult population, and a viral reactivation (ie, when the virus becomes measurable in body fluids such as blood) can occur in up to one-third of these individuals during episodes of critical illness. Objective: To determine whether antiviral therapy is safe and effective for preventing CMV reactivation in a general population of critically ill patients. Design, Setting, and Participants: A single-center, open-label, randomized, controlled clinical trial recruited 124 CMV-seropositive patients undergoing mechanical ventilation for at least 24 hours in the intensive care unit between January 1, 2012, and January 31, 2014...
April 24, 2017: JAMA Internal Medicine
https://www.readbyqxmd.com/read/28437378/risk-factors-for-pediatric-extubation-failure-the-importance-of-respiratory-muscle-strength
#5
Robinder G Khemani, Tro Sekayan, Justin Hotz, Rutger C Flink, Gerrard F Rafferty, Narayan Iyer, Christopher J L Newth
OBJECTIVE: Respiratory muscle weakness frequently develops during mechanical ventilation, although in children there are limited data about its prevalence and whether it is associated with extubation outcomes. We sought to identify risk factors for pediatric extubation failure, with specific attention to respiratory muscle strength. DESIGN: Secondary analysis of prospectively collected data. SETTING: Tertiary care PICU. PATIENTS: Four hundred nine mechanically ventilated children...
April 21, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28437365/a-method-to-account-for-variation-in-congenital-heart-surgery-length-of-stay
#6
Andrew Brennan, Kimberlee Gauvreau, Jean Connor, Melvin Almodovar, James DiNardo, Puja Banka, Meena Nathan, Derek Mathieu, Aditya Kaza, John E Mayer, Lisa Bergersen
OBJECTIVES: We sought to develop a risk-adjustment methodology for length of stay in congenital heart surgery, as none exist. DESIGN: Prospective cohort analysis combined with previously obtained retrospective cohort analysis of a Department of Cardiovascular Surgery clinical database. PATIENTS: Patients discharged from Boston Children's Hospital between October 1, 2006, and May 31, 2014, that underwent a congenital heart surgery procedure(s) linked to one of 103 surgical procedure types...
April 21, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28437301/dexmedetomidine-a-solution-to-the-dilemma-of-pain-and-agitation-in-the-mechanically-ventilated-preterm-neonate
#7
Sara E Rostas
No abstract text is available yet for this article.
April 2017: Journal of Perinatal & Neonatal Nursing
https://www.readbyqxmd.com/read/28437209/conversations-about-goals-and-values-are-feasible-and-acceptable-in-long-term-acute-care-hospitals-a-pilot-study
#8
Daniela J Lamas, Robert L Owens, R Nicholas Nace, Anthony F Massaro, Nathan J Pertsch, Susan T Moore, Rachelle E Bernacki, Susan D Block
RATIONALE: The chronically critically ill have survived acute critical illness but require prolonged mechanical ventilation. These patients are frequently transferred from acute care to long-term acute care hospitals (LTACHs) for prolonged recovery, yet many suffer setbacks requiring readmission to acute care. The patient's relatively improved condition while at the LTACH might be an opportunity for communication regarding care goals; however, there have been no prior studies of the feasibility of such conversations in the LTACH...
February 24, 2017: Journal of Palliative Medicine
https://www.readbyqxmd.com/read/28437202/low-dose-morphine-for-dyspnea-in-terminally-ill-patients-with-idiopathic-interstitial-pneumonias
#9
Yoshinobu Matsuda, Isseki Maeda, Kazunobu Tachibana, Keiko Nakao, Yumiko Sasaki, Chikatoshi Sugimoto, Toru Arai, Akihiro Tokoro, Masanori Akira, Yoshikazu Inoue
BACKGROUND: Dyspnea is highly prevalent in patients with idiopathic interstitial pneumonias (IIPs). OBJECTIVE: The objective of this study is to examine the effectiveness and safety of continuous subcutaneous morphine for dyspnea in terminally ill IIP patients. SETTING/SUBJECTS: We retrospectively reviewed cases of terminally ill IIP patients who received continuous subcutaneous morphine for dyspnea. MEASUREMENTS: We reviewed dyspnea severity measured using numerical rating scale (NRS) and respiratory rate (RR) before and two and four hours after morphine initiation...
February 16, 2017: Journal of Palliative Medicine
https://www.readbyqxmd.com/read/28436855/real-time-implementation-of-calder%C3%A3-n-s-method-on-subject-specific-domains
#10
Peter Muller, Jennifer Mueller, Michelle Mellenthin
A real-time implementation of Calderón's method for the reconstruction of a 2-D conductivity from electrical impedance tomography (EIT) data is presented in which domainspecific modeling is taken into account. This is the first implementation of Calderón's method that accounts for correct modeling of non-symmetric domain boundaries in image reconstruction. The domain-specific Calderón's method is derived and reconstructions from experimental tank data are presented, quantifying the distortion when correct modeling is not included in the reconstruction algorithm...
April 19, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28436852/frequency-selective-computed-tomography-applications-during-periodic-thoracic-motion
#11
Jacob Herrmann, Eric A Hoffman, David W Kaczka
We seek to use computed tomography (CT) to characterize regional lung parenchymal deformation during highfrequency and multi-frequency oscillatory ventilation. Periodic motion of thoracic structures results in artifacts of CT images obtained by standard reconstruction algorithms, especially for frequencies exceeding that of the X-ray source rotation. In this study, we propose an acquisition and reconstruction technique for high resolution imaging of the thorax during periodic motion. Our technique relies on phase-binning projections according to the frequency of subject motion relative to the scanner rotation, prior to volumetric reconstruction...
April 18, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28436722/exercise-training-improves-characteristics-of-exercise-oscillatory-ventilation-in-chronic-heart-failure
#12
Niki Panagopoulou, Eleftherios Karatzanos, Stavros Dimopoulos, Athanasios Tasoulis, Ioannis Tachliabouris, Styliani Vakrou, Antonios Sideris, Christina Gratziou, Serafim Nanas
Background Exercise oscillatory ventilation in chronic heart failure has been suggested as a factor related to adverse cardiac events, aggravated prognosis and higher mortality. Exercise training is well known to affect exercise capacity and mechanisms of pathophysiology beneficially in chronic heart failure. Little is known, however, about the exercise training effects on characteristics of exercise oscillatory ventilation in chronic heart failure patients. Design and methods Twenty (out of 38) stable chronic heart failure patients exhibited exercise oscillatory ventilation (age 54 ± 11 years, peak oxygen uptake 15...
January 1, 2017: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/28436715/controlled-invasive-mechanical-ventilation-strategies-in-obese-patients-undergoing-surgery
#13
Lígia de Albuquerque Maia, Pedro Leme Silva, Paolo Pelosi, Patricia Rieken Macedo Rocco
The obesity prevalence is increasing in surgical population. As the number of obese surgical patients increases, so does the demand for mechanical ventilation. Nevertheless, ventilatory strategies in this population are challenging, since obesity results in pathophysiological changes in respiratory function. Areas covered: We reviewed the impact of obesity on respiratory system and the effects of controlled invasive mechanical ventilation strategies in obese patients undergoing surgery. To date, there is no consensus regarding the optimal invasive mechanical ventilation strategy for obese surgical patients, and no evidence that possible intraoperative beneficial effects on oxygenation and mechanics translate into better postoperative pulmonary function or improved outcomes...
April 24, 2017: Expert Review of Respiratory Medicine
https://www.readbyqxmd.com/read/28436394/sarcomere-dysfunction-in-nemaline-myopathy
#14
Josine M de Winter, Coen A C Ottenheijm
Nemaline myopathy (NM) is among the most common non-dystrophic congenital myopathies (incidence 1:50.000). Hallmark features of NM are skeletal muscle weakness and the presence of nemaline bodies in the muscle fiber. The clinical phenotype of NM patients is quite diverse, ranging from neonatal death to normal lifespan with almost normal motor function. As the respiratory muscles are involved as well, severely affected patients are ventilator-dependent. The mechanisms underlying muscle weakness in NM are currently poorly understood...
April 19, 2017: Journal of Neuromuscular Diseases
https://www.readbyqxmd.com/read/28436232/safety-performance-and-satisfaction-outcomes-in-the-operating-room-a-literature-review
#15
Anjali Joseph, Sara Bayramzadeh, Zahra Zamani, Bill Rostenberg
OBJECTIVE: This review of empirical literature focuses on the design of operating rooms (ORs) by investigating the physical environmental features of ORs associated with patient and staff outcomes. BACKGROUND: Many ORs built more than 30 years ago remain operational today. However, most are inadequately designed to handle the equipment, processes, and people that a contemporary OR needs to accommodate. However, the evidence base for designing ORs has been sorely lacking, and little guidance exists on how OR design can improve safety and performance outcomes...
January 1, 2017: HERD
https://www.readbyqxmd.com/read/28436107/a-complete-4dct-ventilation-functional-avoidance-virtual-trial-developing-strategies-for-prospective-clinical-trials
#16
Timothy Waxweiler, Leah Schubert, Quentin Diot, Austin Faught, Kelly Stuhr, Richard Castillo, Edward Castillo, Thomas Guerrero, Chad Rusthoven, Laurie Gaspar, Brian Kavanagh, Moyed Miften, Yevgeniy Vinogradskiy
INTRODUCTION: 4DCT-ventilation is an exciting new imaging modality that uses 4DCT data to calculate lung-function maps. Because 4DCTs are acquired as standard of care for lung cancer patients undergoing radiotherapy, 4DCT-ventiltation provides functional information at no extra dosimetric or monetary cost to the patient. The development of clinical trials is underway to use 4DCT-ventilation imaging to spare functional lung in patients undergoing radiotherapy. The purpose of this work was to perform a virtual trial using retrospective data to develop the practical aspects of a 4DCT-ventilation functional avoidance clinical trial...
April 24, 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28436022/ventilation-via-the-2-4%C3%A2-mm-internal-diameter-tritube-%C3%A2-with-cuff%C3%A2-new-possibilities-in-airway-management
#17
REVIEW
M S Kristensen, M W P de Wolf, L S Rasmussen
BACKGROUND: A small tube may facilitate tracheal intubation and improve surgical access. We describe our initial experience with the Tritube(®) that is a novel cuffed endotracheal tube with a 2.4 mm internal diameter. METHODS: The Tritube(®) was used in seven adult Ear-Nose-and Throat surgical patients with airway narrowing or whose surgical access was facilitated by this small-bore endotracheal tube. Ventilation through Tritube(®) is performed with the manually operated Ventrain(®) -ventilator that allows active suctioning during expiration, therefore facilitating normoventilation through small diameter airways...
April 23, 2017: Acta Anaesthesiologica Scandinavica
https://www.readbyqxmd.com/read/28435681/a-hol-e-y-predicament
#18
Shaiva Ginoya Meka, Daniel Shelden, Amy Mertens, Paul Christensen, Meet Patel
Endocardial cushion defects are congenital abnormalities that result in valvular dysfunction as well as defects (or "holes") in the septa of the heart. They are typically diagnosed in early infancy; presentation late in life is rare. We present the case of a 72-year-old female admitted to the hospital with dyspnoea and palpitations. She was found to have multifocal atrial tachycardia. She suffered cardiac arrest associated with refractory hypoxaemia that required mechanical ventilation and vasodilator therapy with inhaled nitric oxide...
July 2017: Respirology Case Reports
https://www.readbyqxmd.com/read/28435672/tele-medicine-in-respiratory-diseases
#19
REVIEW
Nicolino Ambrosino, Dewi Nurul Makhabah, Yusup Subagio Sutanto
Information and Communication Technologies applied to health care and advances in sensor and data transmission technology allowed tele-medicine based programs of care also for patients with respiratory diseases. Different sensors, transmission devices and interventions are used in tele-medicine for some indications. Patients suffering from Chronic Obstructive Pulmonary Disease, asthma, neuromuscular diseases, ventilator assisted individuals and those undergoing pulmonary rehabilitation programs may benefit from this approach...
2017: Multidisciplinary Respiratory Medicine
https://www.readbyqxmd.com/read/28435239/pulmonary-rehabilitation-for-copd-improves-exercise-time-rather-than-exercise-tolerance-effects-and-mechanisms
#20
Keisuke Miki, Ryoji Maekura, Seigo Kitada, Mari Miki, Kenji Yoshimura, Hiroshi Yamamoto, Toshiko Kawabe, Hiroyuki Kagawa, Yohei Oshitani, Akitoshi Satomi, Kohei Nishida, Nobuhiko Sawa, Kimiko Inoue
BACKGROUND: COPD patients undergoing pulmonary rehabilitation (PR) show various responses. The purpose of this study was to investigate the possible mechanisms and predictors of the response to PR in COPD patients. METHODS: Thirty-six stable COPD patients underwent PR including a 4-week high-intensity exercise training program, and they were evaluated by cardiopulmonary exercise testing. All patients (mean age 69 years, severe and very severe COPD 94%) were classified into four groups by whether the exercise time (Tex) or the peak oxygen uptake [Formula: see text] increased after PR: two factors increased (both the Tex and the peak [Formula: see text] increased); two factors decreased; time only increased (the Tex increased, but the peak [Formula: see text] economized); and [Formula: see text] only increased (the Tex decreased, but the peak [Formula: see text] increased)...
2017: International Journal of Chronic Obstructive Pulmonary Disease
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