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https://www.readbyqxmd.com/read/28530262/transtracheal-endoscopic-assisted-resection-of-a-rare-inflammatory-myofibroblastic-tumour-in-adult-trachea-a-case-report
#1
S Reddy, R Swamy, D V Kumar Irugu, K V V Ramji
Inflammatory myofibroblastic tumours (IMTs) are rare and clinically benign in childhood, and malignant in adults. The aetiology of IMTs is not clear, and recent studies report it as true neoplasm rather than a reactive or inflammatory lesion. IMTs can involve any part of the body, but are usually common in lungs. These are rarely seen in adults and tracheal involvement is also rare in both adults and children. We describe an 18-year-old woman who presented with respiratory difficulty to the emergency department...
May 22, 2017: Acta Otorhinolaryngologica Italica
https://www.readbyqxmd.com/read/28528787/inspiratory-phonation-in-baby-voice
#2
Kathleen Wermke, Asin Ahmad Haschemi, Volker Hesse, Michael P Robb
OBJECTIVE: This study aimed to evaluate the developmental occurrence of inspiratory phonations (IPs) in the spontaneous cries of healthy infants across the first 10 weeks of life. STUDY DESIGN: This is a populational retrospective study. PARTICIPANTS: The spontaneous crying of 17 healthy infants (10 were male) was retrospectively investigated. MATERIALS AND METHODS: Sound files of spontaneously uttered cries that were repeatedly recorded once per week for across the first 10 weeks of life were retrospectively analyzed...
May 18, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28520888/traffic-congestion-as-a-risk-factor-for-mortality-in-near-road-communities-a-case-crossover-study
#3
Meredith Pedde, Adam A Szpiro, Sara D Adar
Existing epidemiological research on traffic largely neglects localized fluctuations. We leveraged finely-resolved congestion data to investigate short-term associations with mortality in near-road communities. We identified all non-accidental, cardiovascular, cerebrovascular, and respiratory deaths (2009-2013) within 1 km of a Puget Sound highway. Using a case-crossover design, we examined the association between congestion 0-150, 151-300, and 301-1000 m upwind of a decedent's home and mortality, adjusting for meteorology, holidays, and flu...
May 18, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28512363/-attenuation-of-earmuffs-used-simultaneously-with-respiratory-protective-devices
#4
Emil Kozłowski, Rafał Młyński
BACKGROUND: In the work environment, apart from the noise, employees may be exposed to other harmful factors. Therefore, they wear hearing protectors and other personal protective equipment. The aim of the study was to determine whether simultaneous use of earmuffs and respiratory protective devices affects the attenuation of earmuffs. MATERIAL AND METHODS: The study was conducted in laboratory conditions using the subjective REAT (Real Ear Attenuation at Threshold) and objective MIRE (Microphone in Real Ear) methods...
May 16, 2017: Medycyna Pracy
https://www.readbyqxmd.com/read/28510504/cardiopulmonary-exercise-testing-basics-of-methodology-and-measurements
#5
Alessandro Mezzani
Cardiopulmonary exercise testing adds measurement of ventilation and volume of oxygen uptake and exhaled carbon dioxide to routine physiological and performance parameters obtainable from conventional exercise testing, furnishing an all-round vision of the systems involved in both oxygen transport from air to mitochondria and its utilization during exercise. Peculiarities of cardiopulmonary exercise testing methodology are the use of ramp protocols and calibration procedures for flow meters and gas analyzers...
May 16, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28507831/streptococcus%C3%A2-gordonii%C3%A2-empyema-a-case-report-and-review-of-empyema
#6
Amanda M Krantz, Felicia Ratnaraj, Manasa Velagapudi, Mridula Krishnan, Nagarjuna R Gujjula, Pamela A Foral, Laurel Preheim
Streptococcus gordonii (S. gordonii) is a pioneer oral bacteria that is recognized as an agent of bacterial endocarditis. However, an extensive review of the literature revealed no reported case of S. gordonii causing empyema. We present a case of a 65-year-old male who presented with respiratory distress. Physical examination revealed several dental caries with decreased breath sounds in the bibasilar regions. A computed tomography (CT) scan of the chest and abdomen demonstrated left-sided pleural effusion and a 4...
April 12, 2017: Curēus
https://www.readbyqxmd.com/read/28495874/cranking-up-the-heat-relationships-between-energetically-costly-song-features-and-the-increase-in-thorax-temperature-in-male-crickets-and-katydids
#7
B Erregger, H Kovac, A Stabentheiner, M Hartbauer, H Römer, A K D Schmidt
Sexual displays of acoustically signalling insects are used in the context of mate attraction and mate choice. While energetic investment in sound production can increase the reproductive success of the sender, this entails metabolic costs. Resource allocation into sexually selected, reproductive traits can trade off against allocation to naturally selected traits (e.g., growth, immunity) when individuals' energy budgets are limited. Estimating the magnitude of the costs invested in acoustic signalling is necessary to understand this trade-off and its influence on fitness and life-history...
May 11, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28451580/a-wireless-electronic-esophageal-stethoscope-for-continuous-monitoring-of-cardiovascular-and-respiratory-systems-during-anaesthesia
#8
H Parsaei, A Vakily, A M Shafiei
BACKGROUND: The basic requirements for monitoring anesthetized patients during surgery are assessing cardiac and respiratory function. Esophageal stethoscopes have been developed for this purpose, but these devices may not provide clear heart and lung sound due to existence of various noises in operating rooms. In addition, the stethoscope is not applicable for continues monitoring, and it is unsuitable for observing inaccessible patients in some conditions such as during CT scan. OBJECTIVE: A wireless electronic esophageal stethoscope is designed for continues auscultation of heart and lung sounds in anesthetized patients...
March 2017: Journal of Biomedical Physics & Engineering
https://www.readbyqxmd.com/read/28407209/neutrophil-to-lymphocyte-ratio-an-emerging-marker-predicting-prognosis-in-elderly-adults-with-community-acquired-pneumonia
#9
Emanuela Cataudella, Chiara M Giraffa, Salvatore Di Marca, Alfredo Pulvirenti, Salvatore Alaimo, Marcella Pisano, Valentina Terranova, Thea Corriere, Maria L Ronsisvalle, Rosario Di Quattro, Benedetta Stancanelli, Mauro Giordano, Carlo Vancheri, Lorenzo Malatino
OBJECTIVES: To explore the performance of the neutrophil-to-lymphocyte ratio (NLR), an index of systemic inflammation that predicts prognosis of several diseases, in a cohort of elderly adults with community-acquired pneumonia (CAP). DESIGN: Prospective clinical study from January 2014 to July 2016. SETTING: Unit of Internal Medicine, University of Catania, Catania, Italy. PARTICIPANTS: Elderly adults admitted for CAP (N = 195)...
April 13, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28401328/equine-colic-clinical-epidemiology-and-associated-risk-factors-in-and-around-debre-zeit
#10
Yonas Worku, Workneh Wondimagegn, Nigatu Aklilu, Zerihun Assefa, Ayele Gizachew
A prospective study was conducted to describe clinical epidemiology of equine colic in the Society for Protection of Animal Abroad and Donkey Sanctuary Project Clinic, at Debre Zeit, Ethiopia, from November 2014 to April 2015. The objectives were to describe clinical epidemiology of equine colic, to characterize the main types of equine colic, and to determine the major risk factors associated with equine colic. The method which was used in the study was attending clinical case of equine and assessing physiological parameters, fecal egg count, abdominal sounds, and rectal examination as well as questioner interviewing of the owners...
April 11, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28364431/validation-of-the-sonomat-against-psg-and-quantitative-measurement-of-partial-upper-airway-obstruction-in-children-with-sleep-disordered-breathing
#11
Mark B Norman, Sonia M Pithers, Arthur Y Teng, Karen A Waters, Colin E Sullivan
Study Objectives: To validate the Sonomat against polysomnography (PSG) metrics in children and to objectively measure snoring and stertor to produce a quantitative indicator of partial upper airway obstruction that accurately reflects the pathology of pediatric sleep-disordered breathing (SDB). Methods: Simultaneous PSG and Sonomat recordings were performed in 76 children (46 male, age 5.8 ± 2.8, BMI = 18.5 ± 3.8 kg/m2). Sleep time, individual respiratory events and the apnea/hypopnea index (AHI) were compared...
March 1, 2017: Sleep
https://www.readbyqxmd.com/read/28363113/the-attractor-recurrent-neural-network-based-on-fuzzy-functions-an-effective-model-for-the-classification-of-lung-abnormalities
#12
Mohammad Bagher Khodabakhshi, Mohammad Hassan Moradi
The respiratory system dynamic is of high significance when it comes to the detection of lung abnormalities, which highlights the importance of presenting a reliable model for it. In this paper, we introduce a novel dynamic modelling method for the characterization of the lung sounds (LS), based on the attractor recurrent neural network (ARNN). The ARNN structure allows the development of an effective LS model. Additionally, it has the capability to reproduce the distinctive features of the lung sounds using its formed attractors...
March 23, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28337872/safety-and-pharmacodynamic-mechanism-of-ropivacaine-lumbar-anesthesia-in-cesarean-section
#13
Q Liu, J J Wang, H Y Yan, Y Q Wang, C W Qin, M L Li
Lumbar anesthesia is the preferred anesthetic approach for puerperae undergoing cesarean section in China. To observe the safety of administering different doses of ropivacaine for cesarean section and its pharmacodynamic mechanism, we randomly divided 180 pregnant women undergoing cesarean section into three groups: group A, 10 mg ropivacaine (0.50%); group B, 12 mg ropivacaine (0.50%); and group C, 14 mg ropivacaine (0.50%). Pharmacodynamic index, anesthesia quality and incidence of untoward reactions of each group were observed...
January 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28318077/the-effectiveness-of-familiar-auditory-stimulus-on-hospitalized-neonates-physiologic-responses-to-procedural-pain
#14
Elham Azarmnejad, Forogh Sarhangi, Mahrooz Javadi, Nahid Rejeh, Susan Amirsalari, Seyed Davood Tadrisi
Hospitalized neonates usually undergo different painful procedures. This study sought to test the effects of a familiar auditory stimulus on the physiologic responses to pain of venipuncture among neonates in intensive care unit. The study design is quasi-experimental. The randomized clinical trial study was done on 60 full-term neonates admitted to the neonatal intensive care unit between March 20 to June 20, 2014. The neonates were conveniently selected and randomly allocated to the control and the experimental groups...
March 20, 2017: International Journal of Nursing Practice
https://www.readbyqxmd.com/read/28269225/a-method-for-extracting-respiratory-frequency-during-blood-pressure-measurement-from-oscillometric-cuff-pressure-pulses-and-korotkoff-sounds-recorded-during-the-measurement
#15
Diliang Chen, Fei Chen, Alan Murray, Dingchang Zheng
Respiratory frequency is an important physiological feature commonly used to assess health. However, the current measurements involve dedicated devices which not only increase the medical cost but also make health monitoring inconvenient. Earlier studies have shown that respiratory frequency could be extracted from electrocardiography (ECG) signal, but little was done to assess the possibility of extracting respiratory frequency from oscillometric cuff pressure pulses (OscP) or Korotkoff sounds (KorS), which are normally used for measuring blood pressure and more easily accessible than the ECG signal...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28269103/effect-of-importance-sampling-on-robust-segmentation-of-audio-cough-events-in-noisy-environments
#16
Jesus Monge-Alvarez, Carlos Hoyos-Barcelo, Paul Lesso, Javier Escudero, Keshav Dahal, Pablo Casaseca-de-la-Higuera
This paper proposes a new cough detection system based on audio signals acquired from conventional smartphones. The system relies on local Hu moments to characterize cough events and a Λ-NN classifier to distinguish cough events from non-cough ones (speech, laugh, sneeze, etc.) and noisy sounds. To deal with the unbalance between classes, we employ Distinct-Borderline2 Synthetic Minority Oversampling Technique and a bespoke cost matrix. The system additionally features a post-processing module to avoid isolated false negatives and, this way, increases sensitivity...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28269094/resonance-based-respiratory-sound-decomposition-aiming-at-localization-of-crackles-in-noisy-measurements
#17
Sezer Ulukaya, Gorkem Serbes, Yasemin P Kahya
In this work, resonance based decomposition of lung sounds that aims to separate wheeze, crackle and vesicular sounds into three individual channels while automatically localizing crackles for both synthetic and real data is presented. Previous works focus on stationary-non stationary discrimination to separate crackles and vesicular sounds disregarding wheezes which are stationary as compared to crackles. However, wheeze sounds include important cues about the underlying pathology. Using two different threshold methods and synthetic sound generation scenarios in the presence of wheezes, resonance based decomposition performs 89...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28269092/detection-of-crackle-events-using-a-multi-feature-approach
#18
L Mendes, I M Vogiatzis, E Perantoni, E Kaimakamis, I Chouvarda, N Maglaveras, J Henriques, P Carvalho, R P Paiva
The automatic detection of adventitious lung sounds is a valuable tool to monitor respiratory diseases like chronic obstructive pulmonary disease. Crackles are adventitious and explosive respiratory sounds that are usually associated with the inflammation or infection of the small bronchi, bronchioles and alveoli. In this study a multi-feature approach is proposed for the detection of events, in the frame space, that contain one or more crackles. The performance of thirty-five features was tested. These features include thirty-one features usually used in the context of Music Information Retrieval, a wavelet based feature as well as the Teager energy and the entropy...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28269044/detection-of-patients-considering-observation-frequency-of-continuous-and-discontinuous-adventitious-sounds-in-lung-sounds
#19
Naoki Nakamura, Masaru Yamashita, Shoichi Matsunaga
We propose an improved approach for distinguishing between healthy subjects and patients with pulmonary emphysema by the use of one stochastic acoustic model for continuous adventitious sounds and another for discontinuous adventitious sounds. These models are able to represent the spectral features of the adventitious sounds for the detection of abnormal respiration. However, abnormal respiratory sounds with unclassifiable spectral features are present among the continuous and discontinuous adventitious sounds and mixing noises...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28268992/snoring-sound-classification-from-respiratory-signal
#20
Mehrnaz Shokrollahi, Shumit Saha, Peyman Hadi, Frank Rudzicz, Azadeh Yadollahi
Snoring is common in the general population and the irregularity could lead to the presence of Obstructive sleep apnea. Diagnosis of OSA could therefore be made by snoring sound analysis. However, there is still a shortage of robust methods to automatically detect snoring sounds without the need to calibrate for every individual. In this paper, a novel method based on neural network is proposed to classify breathing sound episodes from snoring and non-snoring sound segments. Our snore detection algorithm was applied to the tracheal sounds of nine individuals with different OSA severities...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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