keyword
MENU ▼
Read by QxMD icon Read
search

Lung compliance

keyword
https://www.readbyqxmd.com/read/29334496/oxygen-in-the-critically-ill-friend-or-foe
#1
Elisa Damiani, Abele Donati, Massimo Girardis
PURPOSE OF REVIEW: To examine the potential harmful effects of hyperoxia and summarize the results of most recent clinical studies evaluating oxygen therapy in critically ill patients. RECENT FINDINGS: Excessive oxygen supplementation may have detrimental pulmonary and systemic effects because of enhanced oxidative stress and inflammation. Hyperoxia-induced lung injury includes altered surfactant protein composition, reduced mucociliary clearance and histological damage, resulting in atelectasis, reduced lung compliance and increased risk of infections...
January 12, 2018: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/29317351/a-new-physiological-model-for-studying-the-effect-of-chest-compression-and-ventilation-during-cardiopulmonary-resuscitation-the-thiel-cadaver
#2
Emmanuel Charbonney, Stéphane Delisle, Dominique Savary, Gilles Bronchti, Marceau Rigollot, Adrien Drouet, Bilal Badat, Paul Ouellet, Patrice Gosselin, Alain Mercat, Laurent Brochard, Jean-Christophe M Richard
BACKGROUND: Studying ventilation and intrathoracic pressure (ITP) induced by chest compressions (CC) during Cardio Pulmonary Resuscitation is challenging and important aspects such as airway closure have been mostly ignored. We hypothesized that Thiel Embalmed Cadavers could constitute an appropriate model. METHODS: We assessed respiratory mechanics and ITP during CC in 11 cadavers, and we compared it to measurements obtained in 9 out-of-hospital cardiac arrest patients and to predicted values from a bench model...
January 6, 2018: Resuscitation
https://www.readbyqxmd.com/read/29314868/bronchiolitis-obliterans-and-pulmonary-fibrosis-after-sulfur-mustard-inhalation-in-rats
#3
Matthew D McGraw, Marilyn M Dysart, Tara B Hendry-Hofer, Paul R Houin, Jacqueline S Rioux, Rhonda B Garlick, Joan E Loader, Russell Smith, Danielle C Paradiso, Wesley W Holmes, Dana R Anderson, Carl W White, Livia A Veress
RATIONALE: Inhalation of powerful chemical agents, such as sulfur mustard (SM), can have debilitating pulmonary consequences, such as bronchiolitis obliterans (BO) and parenchymal fibrosis (PF). The underlying pathogenesis of disorders after SM inhalation is not clearly understood, resulting in a paucity of effective therapies. OBJECTIVE: To evaluate the role of pro-fibrotic pathways involving TGF-β and PDGF in the development of BO and PF after inhalation injury sustained by SM, using a rat model...
January 9, 2018: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/29288717/ventilator-derived-dynamic-respiratory-system-compliance-comparison-with-static-compliance-in-children
#4
Anu K Kaskinen, Turkka Kirjavainen, Paula Rautiainen, Laura Martelius, Sture Andersson, Olli M Pitkänen
Measurement of dynamic lung compliance during breathing requires measurement of esophageal pressure, whereas static respiratory system compliance (Crs) method requires several airway occlusions. Despite their precision these compliance methods are cumbersome and not suitable for evaluation of pulmonary system in intensive care. The current ventilators display dynamic Crs, which, however, is seldom utilized in clinical practice. We studied the feasibility of ventilator-derived dynamic Crs measurement in pulmonary evaluation after congenital cardiac surgery in children...
December 27, 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/29284473/involvements-of-p38-mapk-and-oxidative-stress-in-the-ozone-induced-enhancement-of-ahr-and-pulmonary-inflammation-in-an-allergic-asthma-model
#5
Aihua Bao, Hong Yang, Jie Ji, Yuqin Chen, Wuping Bao, Feng Li, Min Zhang, Xin Zhou, Qiang Li, Suqin Ben
BACKGROUND: Exposure to ambient ozone (O3) increases the susceptivity to allergens and triggers exacerbations in patients with asthma. However, the detailed mechanisms of action for O3 to trigger asthma exacerbations are still unclear. METHODS: An ovalbumin (OVA)-established asthmatic mouse model was selected to expose to filtered air (OVA-model) or 1.0 ppm O3 (OVA-O3 model) during the process of OVA challenge. Next, the possible involvements of p38 MAPK and oxidative stress in the ozone actions on the asthma exacerbations were investigated on the mice of OVA-O3 model by treating them with SB239063 (a p38 MAPK inhibitor), and/or the α-tocopherol (antioxidant)...
December 29, 2017: Respiratory Research
https://www.readbyqxmd.com/read/29278953/reduction-in-exhaled-nitric-oxide-tracks-improved-patient-inhaler-compliance-in-difficult-asthma-a-case-study
#6
Eoin Hunt, Deirdre Flynn, Elaine MacHale, Richard W Costello, Desmond M Murphy
INTRODUCTION: Exhaled nitric oxide is believed be a useful surrogate for airways inflammation while non-adherence with therapy is known to be associated with worsening of asthma control. CASE: We present the case of a 49-year-old female with steroid-dependent asthma and an exacerbation rate of >20/year. She was enrolled in a 3-month-long prospective study using a validated diagnostic inhaler device that provided objective evidence of inhaler compliance. Fractional exhaled nitric oxide (FeNO), peak expiratory flow rates, asthma control questionnaires were measured throughout the study period...
December 26, 2017: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/29260317/effects-of-long-term-cysteamine-treatment-in-patients-with-cystinosis
#7
REVIEW
Gema Ariceta, Vincenzo Giordano, Fernando Santos
Cystinosis is a rare autosomal-recessive lysosomal storage disease with high morbidity and mortality. It is caused by mutations in the CTNS gene that encodes the cystine transporter, cystinosin, which leads to lysosomal cystine accumulation. Patients with infantile nephropathic cystinosis, the most common and most severe clinical form of cystinosis, commonly present with renal Fanconi syndrome by 6-12 months of age, and without specific treatment, almost all will develop end-stage renal disease (ESRD) by 10-12 years of age...
December 19, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/29250571/estimability-index-for-volume-quantification-of-homogeneous-spherical-lesions-in-computed-tomography
#8
Ehsan Samei, Marthony Robins, Baiyu Chen, Greeshma Agasthya
Volume of lung nodules is an important biomarker, quantifiable from computed tomography (CT) images. The usefulness of volume quantification, however, depends on the precision of quantification. Experimental assessment of precision is time consuming. A mathematical estimability model was used to assess the quantification precision of CT nodule volumetry in terms of an index ([Formula: see text]), incorporating image noise and resolution, nodule properties, and segmentation software. The noise and resolution were characterized in terms of noise power spectrum and task transfer function...
July 2018: Journal of Medical Imaging
https://www.readbyqxmd.com/read/29237033/colchicine-for-prevention-of-perioperative-atrial-fibrillation-in-patients-undergoing-lung-resection-surgery-a-pilot-randomized-controlled-study
#9
Amal Bessissow, John Agzarian, Yaron Shargall, Sadeesh Srinathan, John Neary, Vikas Tandon, Christian Finley, Jeff S Healey, David Conen, Reitze Rodseth, Shirley Pettit, William Dechert, Otto Regalado, Chinthanie Ramasundarahettige, Saleh Alshalash, P J Devereaux
OBJECTIVES: We carried out a pilot randomized controlled study to determine the feasibility of a large trial evaluating the impact of colchicine versus placebo on postoperative atrial fibrillation or atrial flutter (POAF) among patients undergoing lung resection surgery. METHODS: Patients ≥55 years of age undergoing lung resection surgery were randomly assigned to receive colchicine 0.6 mg or placebo starting a few hours before surgery. Postoperatively, patients received colchicine 0...
December 9, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29234148/quality-improvement-to-reduce-chronic-lung-disease-rates-in-very-low-birth-weight-infants-high-compliance-with-a-respiratory-care-bundle-in-a-small-nicu
#10
Zuzanna Kubicka, Eyad Zahr, Tamara Rousseau, Henry A Feldman, John Fiascone
OBJECTIVE: Reduce chronic lung disease by 10% among very-low birth weight infants by implementing a consistent respiratory care bundle. STUDY DESIGN: Prospective quality improvement study of infants below 32 weeks gestation in a small neonatal intensive care unit. A respiratory care bundle to eliminate inter-provider variability and minimize use of mechanical ventilation was implemented. This included: defining delivery room management with use of continuous positive airway pressure/nasal intermittent positive pressure ventilation, uniform intubation/extubation criteria, and standardizing ventilation/post-extubation support...
December 12, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/29220407/respiratory-resistance-and-reactance-in-adults-with-sickle-cell-anemia-correlation-with-functional-exercise-capacity-and-diagnostic-use
#11
Cirlene de Lima Marinho, Maria Christina Paixão Maioli, Jorge Luis Machado do Amaral, Agnaldo José Lopes, Pedro Lopes de Melo
BACKGROUND: The improvement in sickle cell anemia (SCA) care resulted in the emergence of a large population of adults living with this disease. The mechanisms of lung injury in this new population are largely unknown. The forced oscillation technique (FOT) represents the current state-of-the-art in the assessment of lung function. The present work uses the FOT to improve our knowledge about the respiratory abnormalities in SCA, evaluates the associations of FOT with the functional exercise capacity and investigates the early detection of respiratory abnormalities...
2017: PloS One
https://www.readbyqxmd.com/read/29219321/sheta2-dry-powder-aerosols-for-tuberculosis-formulation-design-and-optimization-using-quality-by-design
#12
Mariam Ibrahim, Manolya Kukut Hatipoglu, Lucila Garcia-Contreras
Tuberculosis (TB) is a life threatening pulmonary infection caused by Mycobacterium tuberculosis (MTB). Current treatments are complex, lengthy and associated with severe side effects that decrease patient compliance and increase the probability of the emergence of drug resistant strains. Thus, more effective drugs with little to no side effects are needed to diversify the armamentarium against the global TB epidemic. SHetA2, an anticancer compound with null toxicity at doses much higher than the effective dose, was recently discovered to be active against MTB...
December 8, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/29211316/the-efficacy-of-prostate-specific-antigen-screening-impact-of-key-components-in-the-erspc-and-plco-trials
#13
Harry J de Koning, Roman Gulati, Sue M Moss, Jonas Hugosson, Paul F Pinsky, Christine D Berg, Anssi Auvinen, Gerald L Andriole, Monique J Roobol, E David Crawford, Vera Nelen, Maciej Kwiatkowski, Marco Zappa, Marcos Luján, Arnauld Villers, Tiago M de Carvalho, Eric J Feuer, Alex Tsodikov, Angela B Mariotto, Eveline A M Heijnsdijk, Ruth Etzioni
BACKGROUND: The European Randomized Study of Screening for Prostate Cancer (ERSPC) demonstrated that prostate-specific antigen (PSA) screening significantly reduced prostate cancer mortality (rate ratio, 0.79; 95% confidence interval, 0.69-0.91). The US Prostate, Lung, Colorectal, and Ovarian (PLCO) trial indicated no such reduction but had a wide 95% CI (rate ratio for prostate cancer mortality, 1.09; 95% CI, 0.87-1.36). Standard meta-analyses are unable to account for key differences between the trials that can impact the estimated effects of screening and the trials' point estimates...
December 6, 2017: Cancer
https://www.readbyqxmd.com/read/29207907/implementation-of-a-goal-directed-mechanical-ventilation-order-set-driven-by-respiratory-therapists-improves-compliance-with-best-practices-for-mechanical-ventilation
#14
Misty A Radosevich, Brendan T Wanta, Todd J Meyer, Verlin W Weber, Daniel R Brown, Nathan J Smischney, Daniel A Diedrich
PURPOSE: Data regarding best practices for ventilator management strategies that improve outcomes in acute respiratory distress syndrome (ARDS) are readily available. However, little is known regarding processes to ensure compliance with these strategies. We developed a goal-directed mechanical ventilation order set that included physician-specified lung-protective ventilation and oxygenation goals to be implemented by respiratory therapists (RTs). We sought as a primary outcome to determine whether an RT-driven order set with predefined oxygenation and ventilation goals could be implemented and associated with improved adherence with best practice...
January 1, 2017: Journal of Intensive Care Medicine
https://www.readbyqxmd.com/read/29205669/prospective-analysis-of-serious-cardiorespiratory-events-in-children-during-ophthalmic-artery-chemotherapy-for-retinoblastoma-under-a-deep-standardized-anesthesia
#15
Marie-Claire Nghe, Anne Godier, Anoushée Shaffii, Isabelle Leblanc, Hervé Picard, Raphaël Blanc, Livia Lumbroso-Le Rouic, Jean-Michel Devys
BACKGROUND AND OBJECTIVE: Serious adverse cardiorespiratory events complicate super selective ophthalmic artery chemotherapy for retinoblastoma in anesthetized children. Their mechanism remains unclear but may be attributed to an autonomic nervous reflex induced by the catheter close to the ophthalmic artery. Inadequate depth of anesthesia during catheter stimulation might be an aggravating factor. Thus, we tested whether deep general anesthesia reduced the incidence of serious cardiorespiratory events...
December 5, 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/29202404/discovery-of-a-novel-series-of-%C3%AE-terpineol-derivatives-as-promising-anti-asthmatic-agents-their-design-synthesis-and-biological-evaluation
#16
Wanping Zhu, Xia Liu, Yuji Wang, Yeling Tong, Yongzhou Hu
A series of novel α-terpineol derivatives were designed and synthesized through structural derivatization of the tertiary hydroxyl moiety or reduction of the double bond. Of the resulting compounds, eight compounds enhanced relaxation of airway smooth muscle (ASM) compared to the α-terpineol precursor, and four compounds (4a, 4d, 4e, and 4i)were superior or comparable to aminophylline at a concentration of 0.75 mmol/L. Assays for 3'-5'-Cyclic adenosine monophpsphate (cAMP) activation revealed that some representative α-terpineol derivatives in this series were capable of upregulating the level of cAMP in ASM cells...
August 1, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29200968/volatile-organic-metabolites-identify-patients-with-gastric-carcinoma-gastric-ulcer-or-gastritis-and-control-patients
#17
Hongshuang Tong, Yue Wang, Yue Li, Shujuan Liu, Chunjie Chi, Desheng Liu, Lei Guo, Enyou Li, Changsong Wang
Background: Gastric cancer ranks 4th among the most common cancers worldwide, and the mortality caused by gastric cancer is 2nd only to lung cancer. Gastric cancer shows a lack of specific symptoms in its early stages. In addition, its clinical symptoms often do not match the corresponding stage. Upper gastrointestinal endoscopy with biopsy is the gold standard for the diagnosis of gastric cancer because of its high accuracy. However, this operation is invasive, patient compliance is poor, and high demands for medical staff and equipment are typical of this procedure...
2017: Cancer Cell International
https://www.readbyqxmd.com/read/29199705/outcomes-in-lung-cancer-an-experience-from-routine-tertiary-care-setting
#18
R Thippeswamy, S Patil, P Prashanth, C T Sateesh, T Vittal, H P Shashidhara, K M Haridas
BACKGROUND: The aim of this study was to establish characteristics of lung cancer patients diagnosed at a tertiary care hospital in Bangalore. METHODS: The retrospective study was undertaken comprising of 202 patients diagnosed of advanced lung cancer in a tertiary care setting. Data was analyzed to identify patients' characteristics, smoking history, tumor histology, stage of the disease, treatment received, and survival rates. RESULTS: Among the 202 patients diagnosed, 134 were males, and 68 were females...
January 2017: Indian Journal of Cancer
https://www.readbyqxmd.com/read/29185443/a-feline-hfpef-model-with-pulmonary-hypertension-and-compromised-pulmonary-function
#19
Markus Wallner, Deborah M Eaton, Remus M Berretta, Giulia Borghetti, Jichuan Wu, Sandy T Baker, Eric A Feldsott, Thomas E Sharp, Sadia Mohsin, Mark A Oyama, Dirk von Lewinski, Heiner Post, Marla R Wolfson, Steven R Houser
Heart Failure with preserved Ejection Fraction (HFpEF) represents a major public health problem. The causative mechanisms are multifactorial and there are no effective treatments for HFpEF, partially attributable to the lack of well-established HFpEF animal models. We established a feline HFpEF model induced by slow-progressive pressure overload. Male domestic short hair cats (n = 20), underwent either sham procedures (n = 8) or aortic constriction (n = 12) with a customized pre-shaped band. Pulmonary function, gas exchange, and invasive hemodynamics were measured at 4-months post-banding...
November 29, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29167126/chronic-lung-injury-and-impaired-pulmonary-function-in-a-mouse-model-of-acid-ceramidase-deficiency
#20
Fabian Ps Yu, Diana Islam, Jakub Sikora, Shaalee Dworski, Jiří Gurka', Lucia Lopez-Vasquez, Mingyao Liu, Wolfgang Michael Kuebler, Thierry Levade, Haibo Zhang, Jeffrey A Medin
Farber Disease (FD) is a debilitating Lysosomal Storage Disorder (LSD) caused by a deficiency of acid ceramidase (ACDase) activity due to mutations in the gene ASAH1. Patients with ACDase deficiency may develop a spectrum of clinical phenotypes. Severe cases of FD are frequently associated with neurological involvement, failure to thrive, and respiratory complications. Mice homozygous (Asah1P361R/P361R) for an orthologous patient mutation in Asah1 recapitulate human FD. In this study, we show significant impairment in lung function including low compliance and increased airway resistance in a mouse model of ACDase deficiency...
November 22, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
keyword
keyword
52242
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"