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Non invasive positive pressure

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https://www.readbyqxmd.com/read/27911338/sleepiness-and-sleep-related-breathing-disorders-in-myotonic-dystrophy-and-responses-to-treatment-a-prospective-cohort-study
#1
Sophie D West, Hanns Lochmüller, Joan Hughes, Antonio Atalaia, Chiara Marini-Bettolo, Simon V Baudouin, Kirstie N Anderson
OBJECTIVE: We conducted prospective assessments in people with myotonic dystrophy type 1 (DM1) with daytime sleepiness, provided targeted therapies and assessed response. METHODS: Patients had overnight sleep assessments. Treatment with continuous positive airway pressure (CPAP) for OSA, non-invasive ventilation (NIV) for respiratory failure, modafinil for excessive daytime sleepiness were commenced. RESULTS: 120 people were studied: mean age 46...
November 29, 2016: Journal of Neuromuscular Diseases
https://www.readbyqxmd.com/read/27910541/research-on-the-best-measurement-situation-between-optical-probe-and-tissue-surfaces-in-non-invasive-detection
#2
Xuyao Yu, Rong Liu, Hui Yu, Jiao Wang, Jun Wang, Kexin Xu
Near-infrared spectroscopy is often used for the non-invasive detection of composition in the human body, such as that of blood glucose and haemoglobin, due to its high penetration depth into tissues. Although it is feasible to position the optical probe precisely, contact situation between probe and human tissues is a difficult problem to determine because of physiological tremor and mechanical performance of bio-soft tissue. Here, we proposed a novel estimation method for the situation between the optical probe and tissue surfaces based on the dynamic auto-correlation matrix of two-dimensional correlation spectroscopy (2DCOS) and radar chart...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27906948/cervical-interlaminar-epidural-injections-at-high-doses-do-not-increase-optic-nerve-sheath-diameter-on-a-long-term-basis
#3
Hyunzu Kim, Joo Hyeon O, Sung-Jun Hong, Keun Man Shin, JungChan Park, Sang Soo Kang
BACKGROUND: Cervical epidural injection (CEI) is widely performed on patients with pain originating from the cervical spine. Studies have shown a good relationship between the optic nerve sheath diameter (ONSD) and the intracranial pressure (ICP). OBJECTIVE: The aim of this study was to evaluate the changes in the ONSD as a non-invasive surrogate marker of ICP after CEI. STUDY DESIGN: Prospective observational study. SETTING: Hospital and ambulatory pain clinic...
November 2016: Pain Physician
https://www.readbyqxmd.com/read/27900962/association-of-conjunctival-and-corneal-calcification-with-vascular-calcification-among-hepatitis-c-seropositive-hemodialysis-patients
#4
Khaled AbouSeif, Dawlat Sany, Yasser Elshahawy, Ayman Seddik, Khedr Rahman, Moustapha Gaber
Disorders associated with the hepatitis C virus (HCV) have been reported including cardiovascular, metabolic, and central nervous system diseases. Since chronic HCV infections may be curable, their identification as causal contributors to cardiovascular risk could offer new perspectives in the prevention of cardiovascular disease. The aim of this study is to investigate the association between HCV and aortic arch calcification (AAC) and corneal and conjunctival calcification (CCC) in maintenance hemodialysis (MHD) patients; further, we assessed the correlation of CCC with vascular calcification...
November 2016: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/27899105/non-invasive-mechanical-ventilation-after-heart-surgery-in-children
#5
Sarah Fernández Lafever, Blanca Toledo, Miguel Leiva, Maite Padrón, Marina Balseiro, Angel Carrillo, Jesús López-Herce
BACKGROUND: The purpose of the study was to analyze the characteristics and evolution of non-invasive mechanical ventilation (NIV) in the postoperative period of heart surgery in children. METHODS: Retrospective observational study including all children requiring NIV after heart surgery in a single center pediatric intensive care unit (PICU) between 2001 and 2012. Demographic characteristics, ventilation parameters and outcomes were registered, comparing the first 6 years of the study with the last 6 years...
November 29, 2016: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/27894060/combined-use-of-tissue-doppler-imaging-and-natriuretic-peptides-as-prognostic-marker-in-asymptomatic-aortic-stenosis
#6
Miquel Gomez Perez, Mireia Ble, Mercedes Cladellas, Lluis Molina, Joan Vila, Alexandra Mas-Stachurska, Laura Higueras-Ortega, Julio Marti-Almor
INTRODUCTION: Tissue Doppler imaging (TDI) and N-terminal-pro-Brain Natriuretic Peptide (NT-proBNP) provides useful non-invasive information about left ventricle filling pressures and both have demonstrated to be a prognostic marker in some valve disease as aortic stenosis (AS). OBJECTIVES: To assess the clinical value of combined TDI and NT-proBNP information in asymptomatic AS patients. MATERIAL AND METHODS: Prospective study of 350 initially asymptomatic moderate to severe AS patients with: Mean aortic valve area 0...
November 10, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27891745/cardiac-extracellular-matrix-is-associated-with-adverse-outcome-in-patients-with-chronic-heart-failure
#7
Franz Duca, Caroline Zotter-Tufaro, Andreas A Kammerlander, Adelheid Panzenböck, Stefan Aschauer, Daniel Dalos, Benedikt Köll, Benedikt Börries, Hermine Agis, Renate Kain, Klaus Aumayr, Florian Klinglmüller, Julia Mascherbauer, Diana Bonderman
AIMS: Accumulation of extracellular matrix (ECM) is known to play a crucial role in the pathophysiology of heart failure (HF). However, its prognostic relevance is poorly investigated. METHODS AND RESULTS: A total of 73 HF patients who underwent LV endomyocardial biopsy were enrolled in our study. ECM area was quantified by TissueFAXS and ImageJ software. Patients were followed-up at 6-month intervals. The study endpoint was defined as hospitalization for a cardiac reason and/or cardiac death...
November 27, 2016: European Journal of Heart Failure
https://www.readbyqxmd.com/read/27887724/facial-deformations-during-nasal-continuous-positive-airway-pressure-therapy
#8
Andrew Sims, Anne Simmons, Mark Hoffman, Klaus Schindhelm
Obstructive Sleep Apnoea (OSA), characterised by repeated collapse of the pharyngeal airway during sleep, causes cessation of breathing followed by arousal, restoring normality. Continuous Positive Airway Pressure (CPAP) is a non-invasive, effective treatment for OSA where positive pressure is applied to the airway through a mask, maintaining patency. Nasal masks are commonly used, contacting the face across the upper lip, sides of the nose and the nasal bridge. Despite health benefits, therapy compliance is sub-optimal, often due to poor mask fit and discomfort...
October 22, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27878783/prediction-of-significant-hyperbilirubinemia-in-term-neonates-by-early-non-invasive-bilirubin-measurement
#9
Manish Jain, Akash Bang, Anju Tiwari, Shuchi Jain
BACKGROUND: Neonatal jaundice is a common problem. We evaluated the utility and best cut-off values of 24-and 48-hour transcutaneous bilirubin indices (TcBI) in predicting subsequent significant hyperbilirubinemia and evaluated various associated maternal and fetal risk factors. METHODS: TcBI at 24 and 48 hours and serum bilirubin levels at 72 hours of age were obtained for healthy, term, appropriate for gestational age neonates. Neonates with prematurity, birth weight <2500 g, ABO or Rh incompatibility, onset of clinical jaundice <24 hours, clinical suspicion of septicemia, positive pressure ventilation at birth, admission in neonatal intensive care unit and contraindications for BiliChek were excluded...
November 23, 2016: World Journal of Pediatrics: WJP
https://www.readbyqxmd.com/read/27878445/can-non-invasive-ventilation-modify-central-venous-pressure-comparison-between-invasive-measurement-and-ultrasonographic-evaluation
#10
Maurizio Zanobetti, Alessio Prota, Alessandro Coppa, Laura Giordano, Sofia Bigiarini, Peiman Nazerian, Francesca Innocenti, Alberto Conti, Federica Trausi, Simone Vanni, Giuseppe Pepe, Riccardo Pini
Central venous pressure (CVP) is primarily measured to assess intravascular volume status and heart preload. In clinical practice, the measuring device most commonly used in emergency departments and intensive care units, is an electronic transducer that interconnects a central venous catheter (CVC) with a monitoring system. Non-invasive ventilation (NIV) consists in a breathing support that supplies a positive pressure in airways through a mask or a cask though not using an endotracheal prosthesis. In emergency settings, non-invasive ultrasonography evaluation of CVP, and hence of intravascular volume status entail the measurement by a subxiphoid approach of inferior vena cava diameter and its variations in relation to respiratory activity...
November 22, 2016: Internal and Emergency Medicine
https://www.readbyqxmd.com/read/27859915/transcriptome-based-phylogeny-of-endemic-lake-baikal-amphipod-species-flock-fast-speciation-accompanied-by-frequent-episodes-of-positive-selection
#11
Sergey A Naumenko, Maria D Logacheva, Nina V Popova, Anna V Klepikova, Aleksey A Penin, Georgii A Bazykin, Anna E Etingova, Nikolai S Mugue, Alexey S Kondrashov, Lev Y Yampolsky
Endemic species flocks inhabiting ancient lakes, oceanic islands and other long-lived isolated habitats are often interpreted as adaptive radiations. Yet molecular evidence for directional selection during species flocks radiation is scarce. Using partial transcriptomes of 64 species of Lake Baikal (Siberia, Russia) endemic amphipods and two non-endemic outgroups, we report a revised phylogeny of this species flock, and analyze evidence for positive selection within the endemic lineages. We confirm two independent invasions of amphipods into Baikal and demonstrate that several morphological features of Baikal amphipods, such as body armor and reduction of appendages and sensory organs, evolved in several lineages in parallel...
November 17, 2016: Molecular Ecology
https://www.readbyqxmd.com/read/27853876/impact-of-non-invasive-ventilation-on-sympathetic-nerve-activity-in-chronic-obstructive-pulmonary-disease
#12
Helge Haarmann, Jan Folle, Xuan Phuc Nguyen, Peter Herrmann, Karsten Heusser, Gerd Hasenfuß, Stefan Andreas, Tobias Raupach
PURPOSE: Chronic obstructive pulmonary disease (COPD) is associated with elevated sympathetic nerve activity, which is probably linked to an increased cardiovascular risk, and may contribute to muscle dysfunction by heightened muscle vasoconstrictor drive. We hypothesized that resistive unloading of respiratory muscles by intermittent non-invasive ventilation (NIV) reduces sympathetic tone at rest and during subsequent handgrip exercise in patients with COPD. METHODS: Muscle sympathetic nerve activity (MSNA) in the peroneal nerve, heart rate, blood pressure, CO2, and SpO2 were continuously recorded in 5 COPD patients with intermittent NIV and 11 control COPD patients without NIV...
November 16, 2016: Lung
https://www.readbyqxmd.com/read/27852952/a-randomised-controlled-trial-of-cpap-versus-non-invasive-ventilation-for-initial-treatment-of-obesity-hypoventilation-syndrome
#13
Mark E Howard, Amanda J Piper, Bronwyn Stevens, Anne E Holland, Brendon J Yee, Eli Dabscheck, Duncan Mortimer, Angela T Burge, Daniel Flunt, Catherine Buchan, Linda Rautela, Nicole Sheers, David Hillman, David J Berlowitz
BACKGROUND: Obesity hypoventilation syndrome (OHS) is the most common indication for home ventilation, although the optimal therapy remains unclear, particularly for severe disease. We compared Bi-level and continuous positive airways pressure (Bi-level positive airway pressure (PAP); CPAP) for treatment of severe OHS. METHODS: We conducted a multicentre, parallel, double-blind trial for initial treatment of OHS, with participants randomised to nocturnal Bi-level PAP or CPAP for 3 months...
November 15, 2016: Thorax
https://www.readbyqxmd.com/read/27833807/the-ecology-of-stress-linking-life-history-traits-with-physiological-control-mechanisms-in-free-living-guanacos
#14
Ramiro J A Ovejero Aguilar, Graciela A Jahn, Mauricio Soto-Gamboa, Andrés J Novaro, Pablo Carmanchahi
BACKGROUND: Providing the context for the evolution of life-history traits, habitat features constrain successful ecological and physiological strategies. In vertebrates, a key response to life's challenges is the activation of the Stress (HPA) and Gonadal (HPG) axes. Much of the interest in stress ecology is motivated by the desire to understand the physiological mechanisms in which the environment affects fitness. As reported in the literature, several intrinsic and extrinsic factors affect variability in hormone levels...
2016: PeerJ
https://www.readbyqxmd.com/read/27812378/the-clinical-characteristics-and-hospital-and-post-hospital-survival-of-patients-with-the-obesity-hypoventilation-syndrome-analysis-of-a-large-cohort
#15
P E Marik, C Chen
OBJECTIVE: The worldwide prevalence of obesity has reached epidemic proportions. Obesity hypoventilation syndrome (OHS) is a common yet largely undiagnosed and mistreated condition that likely carries a high mortality. The aim of this study was to determine the clinical characteristics, hospital outcome, outcome following hospital discharge and predictors of death in a large cohort of patients hospitalized with OHS. OHS is an important condition as many patients with this syndrome are misdiagnosed and receive inappropriate treatment...
March 2016: Obesity Science & Practice
https://www.readbyqxmd.com/read/27807759/p-wave-dispersion-in-patients-with-guillain-barr%C3%A3-syndrome
#16
Seden Demirci, Akif Arslan, Vedat Ali Yürekli, Süleyman Kutluhan, Hasan Rifat Koyuncuoğlu, Serpil Demirci
Cardiac autonomic dysfunction assessed by the presence of arrhythmia, by the methods, such as heart rate variability or blood pressure variability, and by the electrocardiographic abnormalities is common in Guillain-Barré syndrome (GBS). The goal of present study was to analyze the P-wave dispersion (PWD), which is the non-invasive marker of atrial arrhythmia, in GBS patients and to compare those with healthy individuals. Thirty-five patients with GBS (mean age 53.6 ± 15.5 years) and 35 healthy controls (mean age 49...
November 2, 2016: Acta Neurologica Belgica
https://www.readbyqxmd.com/read/27793244/bilateral-parotitis-in-a-patient-under-continuous-positive-airway-pressure-treatment
#17
Ruslan Abdullayev, Filiz Cosku Saral, Omer Burak Kucukebe, Hakan Sezgin Sayiner, Cem Bayraktar, Sadik Akgun
BACKGROUND AND OBJECTIVES: Many conditions such as bacterial and viral infectious diseases, mechanical obstruction due to air and calculi and drugs can cause parotitis. We present a case of unusual bilateral parotitis in a patient under non-invasive continuous positive airway pressure (CPAP) therapy for chronic obstructive pulmonary disease exacerbation in intensive care unit. CASE REPORT: A 36-year-old patient was admitted to intensive care unit with the diagnosis of chronic obstructive pulmonary disease exacerbation...
November 2016: Brazilian Journal of Anesthesiology
https://www.readbyqxmd.com/read/27790484/utility-of-transcutaneous-capnography-for-optimization-of-non-invasive-ventilation-pressures
#18
Prashant N Chhajed, Simone Gehrer, Kamlesh V Pandey, Preyas J Vaidya, Joerg D Leuppi, Michael Tamm, Werner Strobel
INTRODUCTION: Nocturnal Non-invasive Positive Pressure Ventilation (NPPV) is the treatment of choice in patients with chronic hypercapnic respiratory failure due to hypoventilation. Continuous oxygen saturation measured with a pulse oximeter provides a surrogate measure of arterial oxygen saturation but does not completely reflect ventilation. Currently, Partial Pressure of Arterial (PaCO2) measured by arterial blood analysis is used for estimating the adequacy of ventilatory support and serves as the gold standard...
September 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27788267/hbk-14-and-hbk-15-do-not-influence-blood-pressure-lipid-profile-glucose-level-or-liver-enzymes-activity-after-chronic-treatment-in-rats
#19
Karolina Pytka, Monika Głuch-Lutwin, Joanna Knutelska, Magdalena Jakubczyk, Anna Waszkielewicz, Magdalena Kotańska
Older and even new antidepressants cause adverse effects, such as orthostatic hypotension, hyper- or hypoglycemia, liver injury or lipid disorders. In our previous experiments we showed significant antidepressant- and anxiolytic-like activities of dual 5-HT1A and 5-HT7 antagonists with α1-adrenolitic properties i.e. 1-[(2,6-dimethylphenoxy)ethoxyethyl]-4-(2-methoxyphenyl)piperazine hydrochloride (HBK-14) and 1-[(2-chloro-6-methylphenoxy)ethoxyethyl]-4-(2-methoxyphenyl)piperazine hydrochloride (HBK-15). Here, we evaluated the influence of chronic administration of HBK-14 and HBK-15 on blood pressure (non-invasive blood pressure measurement system for rodents), lipid profile (total cholesterol, low density lipoproteins-LDL, high density lipoproteins-HDL, triglycerides), glucose level, and liver enzymes activity (aspartate aminotransferase, alanine aminotransferase, γ-glutamyl transferase)...
2016: PloS One
https://www.readbyqxmd.com/read/27787611/delirium-is-a-strong-predictor-of-mortality-in-patients-receiving-non-invasive-positive-pressure-ventilation
#20
Ka-Yee Chan, Linda S L Cheng, Ivan W C Mak, Shu-Wah Ng, Michael G C Yiu, Chung-Ming Chu
PURPOSE: Non-invasive positive pressure ventilation (NIPPV) has gained popularity over the years in the treatment of acute respiratory failure (ARF). Preliminary evidence suggests that delirium is an important factor contributing to NIPPV failure and death. This study was conducted to evaluate delirium and other associated factors of deaths in patients with ARF requiring the use of NIPPV. METHODS: A prospective observational study was conducted in a specialised NIPPV unit...
October 27, 2016: Lung
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