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Plateau pressure

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https://www.readbyqxmd.com/read/28915229/the-optimal-night-time-home-blood-pressure-monitoring-schedule-agreement-with-ambulatory-blood-pressure-and-association-with-organ-damage
#1
Anastasios Kollias, Emmanuel Andreadis, Gerasimos Agaliotis, George N Kolyvas, Apostolos Achimastos, George S Stergiou
OBJECTIVE: Night-time home blood pressure (HBP) monitoring has emerged as a feasible, reliable and low-cost alternative to ambulatory blood pressure (ABP) monitoring. This study evaluated the optimal schedule of night-time HBP monitoring in terms of agreement with night-time ABP and association with preclinical target-organ damage. METHODS: Untreated hypertensive adults were evaluated with ABP (24-h) and HBP monitoring (daytime: six days, duplicate morning and evening measurements; night-time: three nights, three-hourly automated measurements/night), and determination of left ventricular mass index, common carotid intima-media thickness and urinary albumin excretion...
September 14, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28904452/long-term-response-of-cerebrospinal-fluid-pressure-in-patients-with-idiopathic-intracranial-hypertension-a-prospective-observational-study
#2
V Abdul Gafoor, B Smita, James Jose
BACKGROUND: Idiopathic intracranial hypertension (IIH) is increased intracranial pressure (ICP) with normal cerebrospinal fluid (CSF) contents, in the absence of an intracranial mass, hydrocephalus, or other identifiable causes. The current knowledge of the treatment outcome of IIH is limited, and the data on the natural history of this entity are scant. OBJECTIVE: The objective of the study is to study the treatment response of IIH by serially measuring the CSF opening pressure and to delineate the factors influencing the same...
July 2017: Annals of Indian Academy of Neurology
https://www.readbyqxmd.com/read/28895691/implementation-of-a-checklist-to-increase-adherence-to-evidence-based-practices-in-a-single-pediatric-intensive-care-unit
#3
Pablo Eulmesekian, Augusto Pérez, Silvia Díaz, Mateo Ferrero
INTRODUCTION: The use of checklists to increase adherence to evidence-based practices is not yet widespread in pediatric intensive care units. The objective of this study was to achieve 90% compliance with studied practices using an ad hoc checklist. POPULATION AND METHDOS: Time series quasiexperimental study conducted in ventilated children hospitalized in the pediatric intensive care unit. Studied practices included sedation breaks, plateau pressure ≤ 30 cm H 2O, fraction of inspired oxygen ≤ 60%, maintenance of headboard at > 30°, chlorhexidine mouthwash, weekly ventilator circuit changes, preference for enteral feeding, reduction in the threshold for blood transfusions (hemoglobin: 7 g/dL), daily consideration of spontaneous breathing trials and central venous catheter removal...
October 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28879341/airway-obstruction-by-dissection-of-the-inner-layer-of-a-reinforced-endotracheal-tube-in-a-patient-with-ludwig-s-angina-a-case-report
#4
Sung-Min Shim, Jae-Ho Park, Dong-Min Hyun, Hwa-Mi Lee
Intraoperative airway obstruction is perplexing to anesthesiologists because the patient may fall into danger rapidly. A 74-year-old woman underwent an emergency incision and drainage for a deep neck infection of dental origin. She was orally intubated with a 6. 0 mm internal diameter reinforced endotracheal tube by video laryngoscope using volatile induction and maintenance anesthesia (VIMA) with sevoflurane, fentanyl (100 µg), and succinylcholine (75 mg). During surgery, peak inspiratory pressure increased from 22 to 38 cmH2O and plateau pressure increased from 20 to 28 cmH2O...
June 2017: J Dent Anesth Pain Med
https://www.readbyqxmd.com/read/28870057/-clinical-analysis-of-34-cases-with-sepsis-and-systemic-capillary-leak-syndrome
#5
H X Ma, X J Shi, Y R Liang, H D Shi, H Wang, Y S Zhao
Objective: To study the clinical characteristics of sepsis with systemic capillary leak syndrome(SCLS) and to evaluate the therapeutic effect and clinical significance of fluid therapy adjusted timely in these patients. Methods: The clinical data of 34 patients with sepsis and SCLS in the Department of Hepatobiliary Surgery ICU of General Hospital of People's Liberation Army General Hospital from July 2014 to January 2016 were retrospectively analyzed.There were 21 males and 13 females, aged from 21 to 74 years, with an average age of 56...
September 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/28867023/machine-learning-for-prediction-of-30-day-mortality-after-st-elevation-myocardial-infraction-an-acute-coronary-syndrome-israeli-survey-data-mining-study
#6
Roni Shouval, Amir Hadanny, Nir Shlomo, Zaza Iakobishvili, Ron Unger, Doron Zahger, Ronny Alcalai, Shaul Atar, Shmuel Gottlieb, Shlomi Matetzky, Ilan Goldenberg, Roy Beigel
BACKGROUND: Risk scores for prediction of mortality 30-days following a ST-segment elevation myocardial infarction (STEMI) have been developed using a conventional statistical approach. OBJECTIVE: To evaluate an array of machine learning (ML) algorithms for prediction of mortality at 30-days in STEMI patients and to compare these to the conventional validated risk scores. METHODS: This was a retrospective, supervised learning, data mining study...
November 1, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28860996/prey-capture-ingestion-and-digestion-dynamics-of-octopus-vulgaris-paralarvae-fed-live-zooplankton
#7
Manuel Nande, Pablo Presa, Álvaro Roura, Paul L R Andrews, Montse Pérez
Octopus vulgaris is a species of great interest in research areas such as neurobiology, ethology, and ecology but also a candidate species for aquaculture as a food resource and for alleviating the fishing pressure on its wild populations. This study aimed to characterize the predatory behavior of O. vulgaris paralarvae and to quantify their digestive activity. Those processes were affordable using the video-recording analysis of 3 days post-hatching (dph), mantle-transparent paralarvae feeding on 18 types of live zooplanktonic prey...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28859401/do-bar-headed-geese-train-for-high-altitude-flights
#8
Lucy A Hawkes, Nyambayar Batbayar, Patrick J Butler, Beverley Chua, Peter B Frappell, Jessica U Meir, William K Milsom, Tseveenmyadag Natsagdorj, Nicole Parr, Graham R Scott, John Y Takekawa, Martin WikeIski, Matthew J Witt, Charles M Bishop
Exercise at high altitude is extremely challenging, largely due to hypobaric hypoxia (low oxygen levels brought about by low air pressure). In humans, the maximal rate of oxygen consumption decreases with increasing altitude, supporting progressively poorer performance. Bar-headed geese (Anser indicus) are renowned high altitude migrants and, although they appear to minimize altitude during migration where possible, they must fly over the Tibetan Plateau (mean altitude 4800 m) for much of their annual migration...
August 1, 2017: Integrative and Comparative Biology
https://www.readbyqxmd.com/read/28857808/effect-of-bronchoconstriction-induced-ventilation-perfusion-mismatch-on-uptake-and-elimination-of-isoflurane-and-desflurane
#9
Moritz Kretzschmar, Alf Kozian, James E Baumgardner, Joao Batista Borges, Göran Hedenstierna, Anders Larsson, Thomas Hachenberg, Thomas Schilling
BACKGROUND: Increasing numbers of patients with obstructive lung diseases need anesthesia for surgery. These conditions are associated with pulmonary ventilation/perfusion (VA/Q) mismatch affecting kinetics of volatile anesthetics. Pure shunt might delay uptake of less soluble anesthetic agents but other forms of VA/Q scatter have not yet been examined. Volatile anesthetics with higher blood solubility would be less affected by VA/Q mismatch. We therefore compared uptake and elimination of higher soluble isoflurane and less soluble desflurane in a piglet model...
August 30, 2017: Anesthesiology
https://www.readbyqxmd.com/read/28846571/pulmonary-mechanics-and-mortality-in-mechanically-ventilated-patients-without-acute-respiratory-distress-syndrome-a-cohort-study
#10
Brian M Fuller, David Page, Robert J Stephens, Brian W Roberts, Anne M Drewry, Enyo Ablordeppey, Nicholas M Mohr, Marin H Kollef
BACKGROUND: Driving pressure has been proposed as a major determinant of outcome in patients with acute respiratory distress syndrome (ARDS), but there is little data examining the association between pulmonary mechanics, include driving pressure, and outcomes in mechanically ventilated patients without ARDS. METHODS: Secondary analysis from 1,705 mechanically ventilated patients enrolled in a clinical study that examined outcomes associated with the use of early lung-protective mechanical ventilation...
August 25, 2017: Shock
https://www.readbyqxmd.com/read/28842794/analysis-of-the-spatial-temporal-variation-characteristics-of-vegetative-drought-and-its-relationship-with-meteorological-factors-in-china-from-1982-to-2010
#11
Qiu Shen, Liang Liang, Xiang Luo, Yanjun Li, Lianpeng Zhang
Drought is a complex natural phenomenon that can cause reduced water supplies and can consequently have substantial effects on agriculture and socioeconomic activities. The objective of this study was to gain a better understanding of the spatial-temporal variation characteristics of vegetative drought and its relationship with meteorological factors in China. The Vegetation Condition Index (VCI) dataset calculated from NOAA/AVHRR images from 1982 to 2010 was used to analyse the spatial-temporal variation characteristics of vegetative drought in China...
August 25, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28828362/tidal-volume-in-acute-respiratory-distress-syndrome-how-best-to-select-it
#12
REVIEW
Michele Umbrello, Antonella Marino, Davide Chiumello
Mechanical ventilation is the type of organ support most widely provided in the intensive care unit. However, this form of support does not constitute a cure for acute respiratory distress syndrome (ARDS), as it mainly works by buying time for the lungs to heal while contributing to the maintenance of vital gas exchange. Moreover, it can further damage the lung, leading to the development of a particular form of lung injury named ventilator-induced lung injury (VILI). Experimental evidence accumulated over the last 30 years highlighted the factors associated with an injurious form of mechanical ventilation...
July 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28828361/driving-pressure-and-mechanical-power-new-targets-for-vili-prevention
#13
REVIEW
Tommaso Tonetti, Francesco Vasques, Francesca Rapetti, Giorgia Maiolo, Francesca Collino, Federica Romitti, Luigi Camporota, Massimo Cressoni, Paolo Cadringher, Michael Quintel, Luciano Gattinoni
Several factors have been recognized as possible triggers of ventilator-induced lung injury (VILI). The first is pressure (thus the 'barotrauma'), then the volume (hence the 'volutrauma'), finally the cyclic opening-closing of the lung units ('atelectrauma'). Less attention has been paid to the respiratory rate and the flow, although both theoretical considerations and experimental evidence attribute them a significant role in the generation of VILI. The initial injury to the lung parenchyma is necessarily mechanical and it could manifest as an unphysiological distortion of the extracellular matrix and/or as micro-fractures in the hyaluronan, likely the most fragile polymer embedded in the matrix...
July 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28828360/transpulmonary-pressure-importance-and-limits
#14
REVIEW
Domenico Luca Grieco, Lu Chen, Laurent Brochard
Transpulmonary pressure (PL) is computed as the difference between airway pressure and pleural pressure and separates the pressure delivered to the lung from the one acting on chest wall and abdomen. Pleural pressure is measured as esophageal pressure (PES) through dedicated catheters provided with esophageal balloons. We discuss the role of PL in assessing the effects of mechanical ventilation in patients with acute respiratory distress syndrome (ARDS). In the supine position, directly measured PL represents the pressure acting on the alveoli and airways...
July 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28811880/population-genetic-structure-in-six-sympatric-and-widespread-aquatic-plants-inhabiting-diverse-lake-environments-in-china
#15
Qian-Jin Cao, Fang-Fang Mei, Ling Wang
Many aquatic plant species are distributed over large areas and diverse environments with populations interconnected by abiotic and biotic mediators. Here, we examined differences and similarities in the population genetic structure of six sympatric and widespread aquatic plant species. We sampled the aquatic species from six Chinese lakes found on plateaus, plains, and different river systems and analyzed them using inter-simple sequence repeat (ISSR) markers. Samples originating from each lake tended to cluster together...
August 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28811557/separating-vegetation-greening-and-climate-change-controls-on-evapotranspiration-trend-over-the-loess-plateau
#16
Zhao Jin, Wei Liang, Yuting Yang, Weibin Zhang, Jianwu Yan, Xuejuan Chen, Sha Li, Xingguo Mo
Evapotranspiration (ET) is a key ecological process connecting the soil-vegetation-atmosphere system, and its changes seriously affects the regional distribution of available water resources, especially in the arid and semiarid regions. With the Grain-for-Green project implemented in the Loess Plateau (LP) since 1999, water and heat distribution across the region have experienced great changes. Here, we investigate the changes and associated driving forces of ET in the LP from 2000 to 2012 using a remote sensing-based evapotranspiration model...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28801985/between-day-reliability-of-local-thermal-hyperaemia-in-the-forearm-and-index-finger-using-single-point-laser-doppler-flowmetry
#17
Gregory W McGarr, Gary J Hodges, Stephen S Cheung
OBJECTIVE: To assess between-day reliability for local thermal hyperaemia (LTH) in glabrous and non-glabrous index finger skin and non-glabrous forearm skin, with single point laser-Doppler flowmetry. METHODS: Part-1: In healthy, habitually active males (n=10), LTH was examined twice (~7-10 d apart) for both skin types on the index finger. Part-2: Identical testing was performed on the volar forearm. Local heating (33-42°C at 1°C·20 s(-1) +20 min at 44°C) was performed at all skin sites and baseline, initial peak, and plateau phases were identified...
August 12, 2017: Microcirculation: the Official Journal of the Microcirculatory Society, Inc
https://www.readbyqxmd.com/read/28790149/evaluation-of-endotracheal-tube-scraping-on-airway-resistance
#18
J Brady Scott, Meagan N Dubosky, David L Vines, Adewunmi S Sulaiman, Kyle R Jendral, Gagan Singh, Ankeet Patel, Carl A Kaplan, David P Gurka, Robert A Balk
BACKGROUND: Spontaneous breathing trials (SBTs) are used to assess the readiness for discontinuation of mechanical ventilation. When airway resistance (Raw) is elevated, the imposed work of breathing can lead to prolongation of mechanical ventilation. Biofilm and mucus build-up within the endotracheal tube (ETT) can increase Raw. Scraping the ETT can remove the biofilm build-up and decrease mechanical Raw. The primary aim of this study was to evaluate the impact of ETT scraping on Raw...
August 8, 2017: Respiratory Care
https://www.readbyqxmd.com/read/28782513/the-effect-of-age-on-the-response-of-retinal-capillary-filling-to-changes-in-intraocular-pressure-measured-by-optical-coherence-tomography-angiography
#19
Xiaoyun Jiang, Elaine Johnson, William Cepurna, Diana Lozano, Shaojie Men, Ruikang K Wang, John Morrison
PURPOSE: To compare the effect of elevated intraocular pressure (IOP) on retinal capillary filling in elderly vs adult rats using optical coherence tomography angiography (OCTA). METHODS: The IOP of elderly (24-month-old, N=12) and adult (6-8month-old, N=10) Brown Norway rats was elevated in 10mmHg increments from 10 to 100mmHg. At each IOP level, 3D OCT data were captured using an optical microangiography (OMAG) scanning protocol and then post-processed to obtain both structural and vascular images...
August 3, 2017: Microvascular Research
https://www.readbyqxmd.com/read/28770093/the-clinical-practice-guideline-for-the-management-of-ards-in-japan
#20
Satoru Hashimoto, Masamitsu Sanui, Moritoki Egi, Shinichiro Ohshimo, Junji Shiotsuka, Ryutaro Seo, Ryoma Tanaka, Yu Tanaka, Yasuhiro Norisue, Yoshiro Hayashi, Eishu Nango
BACKGROUND: The Japanese Society of Respiratory Care Medicine and the Japanese Society of Intensive Care Medicine provide here a clinical practice guideline for the management of adult patients with ARDS in the ICU. METHOD: The guideline was developed applying the GRADE system for performing robust systematic reviews with plausible recommendations. The guideline consists of 13 clinical questions mainly regarding ventilator settings and drug therapies (the last question includes 11 medications that are not approved for clinical use in Japan)...
2017: Journal of Intensive Care
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