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noise in critical care

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https://www.readbyqxmd.com/read/28594352/automatic-artifact-removal-in-eeg-of-normal-and-demented-individuals-using-ica-wt-during-working-memory-tasks
#1
Noor Kamal Al-Qazzaz, Sawal Hamid Bin Mohd Ali, Siti Anom Ahmad, Mohd Shabiul Islam, Javier Escudero
Characterizing dementia is a global challenge in supporting personalized health care. The electroencephalogram (EEG) is a promising tool to support the diagnosis and evaluation of abnormalities in the human brain. The EEG sensors record the brain activity directly with excellent time resolution. In this study, EEG sensor with 19 electrodes were used to test the background activities of the brains of five vascular dementia (VaD), 15 stroke-related patients with mild cognitive impairment (MCI), and 15 healthy subjects during a working memory (WM) task...
June 8, 2017: Sensors
https://www.readbyqxmd.com/read/28570377/part-i-the-effects-of-music-for-the-symptom-management-of-anxiety-pain-and-insomnia-in-critically-ill-patients-an-integrative-review-of-current-literature
#2
Naheed Meghani, Mary Fran Tracy, Niloufar Niakosari Hadidi, Ruth Lindquist
Critical care environments are known for provoking anxiety, pain, and sleeplessness. Often, these symptoms are attributed to patients' underlying physiological conditions; life-sustaining or life-prolonging treatments such as ventilators, invasive procedures, tubes, and monitoring lines; and noise and the fast-paced technological nature of the critical care environment. This, in turn, possibly increases length of stay and morbidity and challenges the recovery and healing of critically ill patients. Complementary therapies can be used as adjunctive therapies alongside pharmacological interventions and modalities...
July 2017: Dimensions of Critical Care Nursing: DCCN
https://www.readbyqxmd.com/read/28508438/the-effect-of-chronotherapy-on-delirium-in-critical-care%C3%A2-%C3%A2-a-systematic-review
#3
Roseanne Luther, Anne McLeod
BACKGROUND: Delirium is highly prevalent within critical care and is linked to adverse clinical outcomes, increased mortality and impaired quality of life. Development of delirium is thought to be caused by multiple risk factors, including disruption of the circadian rhythm. Chronotherapeutic interventions, such as light therapy, music and use of eye shades, have been suggested as an option to improve circadian rhythm within intensive care units. AIM: This review aims to answer the question: Can chronotherapy reduce the prevalence of delirium in adult patients in critical care? DESIGN: This study is a systematic review of quantitative studies...
May 15, 2017: Nursing in Critical Care
https://www.readbyqxmd.com/read/28414862/editorial-perspective-longitudinal-research-in-autism-introducing-the-concept-of-chronogeneity
#4
EDITORIAL
Stelios Georgiades, Somer L Bishop, Thomas Frazier
Autism Spectrum Disorder (ASD or autism) is a heterogeneous neurodevelopmental disorder. We are now at a critical juncture in autism research where we have the knowledge base and expertise to begin to think about studies that view heterogeneity, not as 'statistical noise' that can be 'accounted for' using data-reduction techniques (such as group trajectories), but rather as 'informative variance' that can help form a more precise and dynamic picture of autism. In this Editorial we coin a new term and introduce the concept of 'chronogeneity' for the study of autism heterogeneity in relation to the dimension of time (chrono)...
May 2017: Journal of Child Psychology and Psychiatry, and Allied Disciplines
https://www.readbyqxmd.com/read/28398915/noise-in-the-neonatal-intensive-care-unit-what-does-the-evidence-tell-us
#5
Sharon G Casavant, Katherine Bernier, Sheena Andrews, Allison Bourgoin
BACKGROUND: In 2014, more than 10% of all births in the United States were preterm (born at <37-weeks' gestation). These high-risk infants will often spend weeks to months within the neonatal intensive care unit (NICU), where noise levels can easily reach 120 decibels adjusted (dBA) on a regular and sometimes consistent basis. The American Academy of Pediatrics recommends that NICU sound levels remain below 45 dBA to promote optimal growth and development. PURPOSE: The purpose of this evidence-based brief is to critically appraise the literature concerning preterm infant response to noise within the NICU as well as the use of noise interventions to improve health outcomes for the vulnerable preterm infant population...
April 7, 2017: Advances in Neonatal Care: Official Journal of the National Association of Neonatal Nurses
https://www.readbyqxmd.com/read/28384272/a-novel-low-complexity-digital-filter-design-for-wearable-ecg-devices
#6
Shadnaz Asgari, Alireza Mehrnia
Wearable and implantable Electrocardiograph (ECG) devices are becoming prevailing tools for continuous real-time personal health monitoring. The ECG signal can be contaminated by various types of noise and artifacts (e.g., powerline interference, baseline wandering) that must be removed or suppressed for accurate ECG signal processing. Limited device size, power consumption and cost are critical issues that need to be carefully considered when designing any portable health monitoring device, including a battery-powered ECG device...
2017: PloS One
https://www.readbyqxmd.com/read/28367540/task-based-regularization-design-for-detection-of-intracranial-hemorrhage-in-cone-beam-ct
#7
H Dang, J W Stayman, J Xu, A Sisniega, W Zbijewski, X Wang, D H Foos, N Aygun, V E Koliatsos, J H Siewerdsen
Prompt and reliable detection of acute intracranial hemorrhage (ICH) is critical to treatment of a number of neurological disorders. Cone-beam CT (CBCT) systems are potentially suitable for detecting ICH (contrast 40-80 HU, size down to 1 mm) at the point of care but face major challenges in image quality requirements. Statistical reconstruction demonstrates improved noise-resolution tradeoffs in CBCT head imaging, but its capability in improving image quality with respect to the task of ICH detection remains to be fully investigated...
July 2016: Conference Proceedings of International Conference on Image Formation in X-Ray Computed Tomography
https://www.readbyqxmd.com/read/28351551/effect-of-nocturnal-sound-reduction-on-the-incidence-of-delirium-in-intensive-care-unit-patients-an-interrupted-time-series-analysis
#8
Ineke van de Pol, Mat van Iterson, Jolanda Maaskant
INTRODUCTION: Delirium in critically-ill patients is a common multifactorial disorder that is associated with various negative outcomes. It is assumed that sleep disturbances can result in an increased risk of delirium. This study hypothesized that implementing a protocol that reduces overall nocturnal sound levels improves quality of sleep and reduces the incidence of delirium in Intensive Care Unit (ICU) patients. METHODS: This interrupted time series study was performed in an adult mixed medical and surgical 24-bed ICU...
March 25, 2017: Intensive & Critical Care Nursing: the Official Journal of the British Association of Critical Care Nurses
https://www.readbyqxmd.com/read/28334628/superwetting-and-aptamer-functionalized-shrink-induced-high-surface-area-electrochemical-sensors
#9
A Hauke, L S Selva Kumar, M Y Kim, J Pegan, M Khine, H Li, K W Plaxco, J Heikenfeld
Electrochemical sensing is moving to the forefront of point-of-care and wearable molecular sensing technologies due to the ability to miniaturize the required equipment, a critical advantage over optical methods in this field. Electrochemical sensors that employ roughness to increase their microscopic surface area offer a strategy to combatting the loss in signal associated with the loss of macroscopic surface area upon miniaturization. A simple, low-cost method of creating such roughness has emerged with the development of shrink-induced high surface area electrodes...
March 12, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28241545/on-tilt-and-curvature-dependent-errors-and-the-calibration-of-coherence-scanning-interferometry
#10
Rong Su, Yuhang Wang, Jeremy Coupland, Richard Leach
Although coherence scanning interferometry (CSI) is capable of measuring surface topography with sub-nanometre precision, it is well known that the performance of measuring instruments depends strongly on the local tilt and curvature of the sample surface. Based on 3D linear systems theory, however, a recent analysis of fringe generation in CSI provides a method to characterize the performance of surface measuring instruments and offers considerable insight into the origins of these errors. Furthermore, from the measurement of a precision sphere, a process to calibrate and partially correct instruments has been proposed...
February 20, 2017: Optics Express
https://www.readbyqxmd.com/read/28121760/striving-for-optimum-noise-decreasing-strategies-in-critical-care-initial-measurements-and-observations
#11
Timothy C Disher, Britney Benoit, Darlene Inglis, Stacy A Burgess, Barbara Ellsmere, Brenda E Hewitt, Tanya M Bishop, Christopher L Sheppard, Krista A Jangaard, Gavin C Morrison, Marsha L Campbell-Yeo
To identify baseline sound levels, patterns of sound levels, and potential barriers and facilitators to sound level reduction. The study setting was neonatal and pediatric intensive care units in a tertiary care hospital. Participants were staff in both units and parents of currently hospitalized children or infants. One 24-hour sound measurements and one 4-hour sound measurement linked to observed sound events were conducted in each area of the center's neonatal intensive care unit. Two of each measurement type were conducted in the pediatric intensive care unit...
January 2017: Journal of Perinatal & Neonatal Nursing
https://www.readbyqxmd.com/read/27892247/family-satisfaction-with-patient-care-in-critical-care-units-in-pakistan-a-descriptive-cross-sectional-study
#12
Younas Ahtisham, Parveen Subia, Victor Gideon
AIM: To assess family satisfaction with care provided to patients in critical care units in Islamabad. METHOD: A descriptive cross-sectional study was conducted in 11 medical and surgical critical care units at two private hospitals in Islamabad, Pakistan. The purposive sample consisted of 323 immediate family members and other relatives and friends (referred to as family members in this article) of 323 patients admitted to the critical care units for at least 24 hours...
November 23, 2016: Nursing Standard
https://www.readbyqxmd.com/read/27891665/spectral-summation-and-facilitation-in-on-and-off-responses-for-optimized-representation-of-communication-calls-in-mouse-inferior-colliculus
#13
Alexander G Akimov, Marina A Egorova, Günter Ehret
Selectivity for processing of species-specific vocalizations and communication sounds has often been associated with the auditory cortex. The midbrain inferior colliculus, however, is the first center in the auditory pathways of mammals integrating acoustic information processed in separate nuclei and channels in the brainstem and, therefore, could significantly contribute to enhance the perception of species' communication sounds. Here, we used natural wriggling calls of mouse pups, which communicate need for maternal care to adult females, and further 15 synthesized sounds to test the hypothesis that neurons in the central nucleus of the inferior colliculus of adult females optimize their response rates for reproduction of the three main harmonics (formants) of wriggling calls...
November 27, 2016: European Journal of Neuroscience
https://www.readbyqxmd.com/read/27890060/implementing-no-interruption-zones-in-the-perioperative-environment
#14
M Imelda Wright
The perioperative arena is one of the most information-intensive, intricate, and complex work environments in health care, and it depends on sound communication to help ensure patient safety. Surgical procedures require attention, vigilance, and situational awareness. Noise and other distractions have the potential to cause mental lapses, impair thought processes, and divert attention away from tasks, increasing the likelihood of adverse patient events. However, there is no way to eliminate all noise from an OR...
December 2016: AORN Journal
https://www.readbyqxmd.com/read/27775399/heterogeneous-population-dynamics-and-scaling-laws-near-epidemic-outbreaks
#15
Andreas Widder, Christian Kuehn
In this paper, we focus on the influence of heterogeneity and stochasticity of the population on the dynamical structure of a basic susceptible-infected-susceptible (SIS) model. First we prove that, upon a suitable mathematical reformulation of the basic reproduction number, the homogeneous system and the heterogeneous system exhibit a completely analogous global behaviour. Then we consider noise terms to incorporate the fluctuation effects and the random import of the disease into the population and analyse the influence of heterogeneity on warning signs for critical transitions (or tipping points)...
October 1, 2016: Mathematical Biosciences and Engineering: MBE
https://www.readbyqxmd.com/read/27720335/inattentional-blindness-and-failures-to-rescue-the-deteriorating-patient-in-critical-care-emergency-and-perioperative-settings-four-case-scenarios
#16
Angela Jones, Megan-Jane Johnstone
BACKGROUND: Failure to identify and respond to clinical deterioration is an important measure of patient safety, hospital performance and quality of care. Although studies have identified the role of patient, system and human factors in failure to rescue events, the role of 'inattentional blindness' as a possible contributing factor has been overlooked. OBJECTIVES: To explore the nature and possible patient safety implications of inattentional blindness in critical care, emergency and perioperative nursing contexts...
October 5, 2016: Australian Critical Care: Official Journal of the Confederation of Australian Critical Care Nurses
https://www.readbyqxmd.com/read/27687008/can-nursing-units-with-high-fall-rates-be-identified-using-one-year-of-data-reliability-of-fall-rates-as-a-function-of-the-number-of-quarters-on-which-they-are-based
#17
Vincent S Staggs, Emily Cramer
Reliability-the extent to which multiple measurements of a target yield similar results-is critical in comparing healthcare provider quality. Hospital unit fall rates are widely tracked and used for benchmarking, but their reliability is not well-studied. Our twofold purpose was to estimate fall rate reliability, both in terms of signal (between-unit variability) relative to noise (within-unit variability) and in terms of the accuracy with which units can be classified as high-fall units; and to assess reliability as a function of the number of quarters of data used to compute fall rates...
February 2017: Research in Nursing & Health
https://www.readbyqxmd.com/read/27676170/perspectives-of-physicians-and-nurses-on-identifying-and-treating-psychological-distress-of-the-critically-ill
#18
Lioudmila V Karnatovskaia, Margaret M Johnson, Travis J Dockter, Ognjen Gajic
PURPOSE: Survivors of critical illness are frequently unable to return to their premorbid level of psychocognitive functioning following discharge. Therefore, we aimed to evaluate the burden of psychological trauma experienced by patients in the intensive care unit (ICU) as perceived by clinicians to assess factors that can impede its recognition and treatment in the ICU. MATERIALS AND METHODS: Two distinct role-specific Web-based surveys were administered to critical care physicians and nurses in medical and surgical ICUs of 2 academic medical centers...
February 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/27660924/sleep-in-intensive-care-unit-the-role-of-environment
#19
Yuliya Boyko, Poul Jennum, Miki Nikolic, René Holst, Helle Oerding, Palle Toft
PURPOSE: To determine if improving intensive care unit (ICU) environment would enhance sleep quality, assessed by polysomnography (PSG), in critically ill mechanically ventilated patients. MATERIALS AND METHODS: Randomized controlled trial, crossover design. The night intervention "quiet routine" protocol was directed toward improving ICU environment between 10pm and 6am. Noise levels during control and intervention nights were recorded. Patients on mechanical ventilation and able to give consent were eligible for the study...
February 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/27587429/nurses-perceptions-of-pediatric-intensive-care-unit-environment-and-work-experience-after-transition-to-single-patient-rooms
#20
Sapna R Kudchadkar, M Claire Beers, Judith A Ascenzi, Ebaa Jastaniah, Naresh M Punjabi
BACKGROUND: The architectural design of the pediatric intensive care unit may play a major role in optimizing the environment to promote patients' sleep while improving stress levels and the work experience of critical care nurses. OBJECTIVES: To examine changes in nurses' perceptions of the environment of a pediatric critical care unit for promotion of patients' sleep and the nurses' work experience after a transition from multipatient rooms to single-patient rooms...
September 2016: American Journal of Critical Care: An Official Publication, American Association of Critical-Care Nurses
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