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Respiratory sounds

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https://www.readbyqxmd.com/read/28047491/mo-fg-bra-02-a-feasibility-study-of-integrating-breathing-audio-signal-with-surface-surrogates-for-respiratory-motion-management
#1
Y Lei, X Zhu, D Zheng, S Li, R Ma, M Zhang, Q Fan, X Wang, V Verma, X Tang, S Zhou
PURPOSE: Tracking the surrogate placed on patient skin surface sometimes leads to problematic signals for certain patients, such as shallow breathers. This in turn impairs the 4D CT image quality and dosimetric accuracy. In this pilot study, we explored the feasibility of monitoring human breathing motion by integrating breathing sound signal with surface surrogates. METHODS: The breathing sound signals were acquired though a microphone attached adjacently to volunteer's nostrils, and breathing curve were analyzed using a low pass filter...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28030927/fogging-low-concentrated-organic-acid-in-a-fattening-pig-unit-effect-on-animal-health-and-microclimate
#2
Heiko Stein, Jochen Schulz, Nicole Kemper, Alexander Tichy, Ines Krauss, Christian Knecht, Isabel Hennig-Pauka
INTRODUCTION AND OBJECTIVE: In intensive pig production aerial contaminates are potential hazards for the health of animals and humans. In this study, the effect of fogging a low concentrated tartaric acid solution on pigs' health, environmental and hygiene parameters were evaluated in an inhabited fattening unit. MATERIALS AND METHOD: Pigs were housed in separate units (control group n=109 and experimental group n=110). During the whole fattening period, twice a week at 48 hour intervals, a 0...
23, 2016: Annals of Agricultural and Environmental Medicine: AAEM
https://www.readbyqxmd.com/read/28028308/metastatic-squamous-cell-carcinoma-of-the-pleura-a-rare-complication-of-hidradenitis-suppurativa
#3
Kiran Joglekar, Christopher Jackson, Dipen Kadaria, Amik Sodhi
BACKGROUND Squamous cell carcinoma (SCC), also known as Marjolin ulcer, is a rare complication of hidradenitis suppurativa (HS). Metastatic SCC from HS typically involves the axial skeleton or abdominopelvic viscera. Metastatic disease to the lungs is a rare phenomenon with only three reported cases of lung parenchyma. We present a biopsy proven case of metastatic SCC to the pleura from gluteal HS. CASE REPORT A 46-year-old male with a history of recently diagnosed Marjolin ulcer secondary to gluteal HS was transferred to our intensive care unit for acute hypoxemic respiratory failure secondary to recurrent pleural effusion...
December 28, 2016: American Journal of Case Reports
https://www.readbyqxmd.com/read/28025752/sound-level-analysis-in-endotracheal-tube-obstruction-in-spontaneous-breathing-and-mechanical-ventilation-an-animal-model-study
#4
Behzad Maghsoodi, Golnar Sabetian, Aram Azimi, Nader Tanideh, Alireza Mehdizade
Endotracheal tube (ETT) obstruction, either complete or partial, is a serious life threatening complication in intubated patients. Therefore, implementing a practical method to diagnose this condition is vital. Alteration in respiratory sound signals caused by ETT occlusion can be used for early detection of obstruction. This study is aimed to assess changes in respiratory sound signals after creation of different types of tubal obstruction in an animal model experiment. Artificial internal obstructions were created in three different sizes and three different locations by stitching pieces of smaller tubes in ETTs with internal diameter of 8 mm...
December 26, 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28010677/cochlear-implantation-in-chronic-demyelinating-inflammatory-polyneuropathy
#5
Sarah E Mowry, Sarah King
OBJECTIVE: To describe a case of chronic inflammatory demyelinating polyneuropathy (CDIP) with bilateral sudden sensorineural hearing loss who subsequently benefited from unilateral cochlear implantation. METHODS: case history review and review of the literature for the terms CDIP, hearing loss, cochleovestibular dysfunction, and cochlear implantation. RESULTS: A 49-year-old woman presented with bilateral rapidly progressive sensorineural hearing loss (SNHL) 1 month after an upper respiratory tract infection...
December 23, 2016: Cochlear Implants International
https://www.readbyqxmd.com/read/27943294/laryngeal-pacing-for-bilateral-vocal-fold-paralysis-voice-and-respiratory-aspects
#6
Andreas H Mueller, Rudolf Hagen, Claus Pototschnig, Gerhard Foerster, Wilma Grossmann, Katrin Baumbusch, Markus Gugatschka, Tadeus Nawka
OBJECTIVE: To evaluate the effects of neurostimulation with the laryngeal pacemaker (LP) system in patients with bilateral vocal fold paralysis (BVFP) in terms of voice quality and respiratory function. STUDY DESIGN: Feasibility study, first-in-human, single-arm, open-label, prospective, multicenter study with group-sequential design and 6-month follow-up period, as described in details in our previous publication. METHODS: Nine symptomatic BVFP subjects were unilaterally implanted with the LP system at three study sites in Germany and Austria...
December 10, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27939120/aerobic-exercise-as-a-warm-up-for-singing-acoustic-impacts
#7
Monica A McHenry, Joseph Evans
OBJECTIVES: In a previous work, it was found that a 30-minute aerobic workout significantly increased singers' sound pressure level and airflow during voicing, suggesting a shift to flow phonation. This companion study was designed to assess the impact of the same workout on pitch accuracy, vibrato rate, extent and regularity, and the singing power ratio. STUDY DESIGN: This study is a cohort experimental study. METHODS: Twenty-two students in an academic vocal performance program participated...
December 6, 2016: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/27923938/computerized-respiratory-sounds-novel-outcomes-for-pulmonary-rehabilitation-in-copd
#8
Cristina Jácome, Alda Marques
BACKGROUND: Computerized respiratory sounds are a simple and noninvasive measure to assess lung function. Nevertheless, their potential to detect changes after pulmonary rehabilitation (PR) is unknown and needs clarification if respiratory acoustics are to be used in clinical practice. Thus, this study investigated the short- and mid-term effects of PR on computerized respiratory sounds in subjects with COPD. METHODS: Forty-one subjects with COPD completed a 12-week PR program and a 3-month follow-up...
December 6, 2016: Respiratory Care
https://www.readbyqxmd.com/read/27916238/variation-in-effectiveness-of-a-cardiac-auscultation-training-class-with-a-cardiology-patient-simulator-among-heart-sounds-and-murmurs
#9
Yutaka Kagaya, Masao Tabata, Yutaro Arata, Junichi Kameoka, Seiichi Ishii
BACKGROUND: Effectiveness of simulation-based education in cardiac auscultation training is controversial, and may vary among a variety of heart sounds and murmurs. We investigated whether a single auscultation training class using a cardiology patient simulator for medical students provides competence required for clinical clerkship, and whether students' proficiency after the training differs among heart sounds and murmurs. METHODS: A total of 324 fourth-year medical students (93-117/year for 3 years) were divided into groups of 6-8 students; each group participated in a three-hour training session using a cardiology patient simulator...
December 1, 2016: Journal of Cardiology
https://www.readbyqxmd.com/read/27914263/positive-effects-of-low-intensity-recorded-maternal-voice-on-physiologic-reactions-in-premature-infants
#10
Negar Sajjadian, Mahboobeh Mohammadzadeh, Peymaneh Alizadeh Taheri, Mamak Shariat
OBJECTIVE: To evaluate the effect of low intensity recorded maternal voice on the physiologic reactions of healthy premature infants in the neonatal intensive care unit (NICU). METHODS: Physiologic responses of 20 healthy preterm infants in the NICU of Shariati Hospital, Tehran, were obtained during a 15min intervention including three 5min periods (no-sound control, audio recorded playback of mother's voice, no-sound post-voice). The intervention was presented three times a day for three consecutive days...
November 30, 2016: Infant Behavior & Development
https://www.readbyqxmd.com/read/27909886/automatic-snoring-sounds-detection-from-sleep-sounds-via-multi-features-analysis
#11
Can Wang, Jianxin Peng, Lijuan Song, Xiaowen Zhang
Obstructive sleep apnea hypopnea syndrome (OSAHS) is a serious respiratory disorder. Snoring is the most intuitively characteristic symptom of OSAHS. Recently, many studies have attempted to develop snore analysis technology for diagnosing OSAHS. The preliminary and essential step in such diagnosis is to automatically segment snoring sounds from original sleep sounds. This study presents an automatic snoring detection algorithm that detects potential snoring episodes using an adaptive effective-value threshold method, linear and nonlinear feature extraction using maximum power ratio, sum of positive/negative amplitudes, 500 Hz power ratio, spectral entropy (SE) and sample entropy (SampEn), and automatic snore/nonsnore classification using a support vector machine...
December 1, 2016: Australasian Physical & Engineering Sciences in Medicine
https://www.readbyqxmd.com/read/27888824/clinico-radiological-parameters-predicting-early-diagnosis-of-foreign-body-aspiration-in-children
#12
Pradipta Kumar Parida, Nirmal Shanmugasundaram, Surianarayanan Gopalakrishnan
OBJECTIVES: This study aims to investigate clinical and radiological findings to make early diagnosis of foreign body (FB) aspiration in children. PATIENTS AND METHODS: This prospective study was conducted on 45 children younger than 12 years with a clinical diagnosis of FB aspiration undergone rigid bronchoscopy between September 2010 and May 2014. The results of 37 children (22 males, 15 females; mean age 2.6 years; range 1 to 12 years) with positive for FB on bronchoscopy were analyzed...
September 2016: Kulak Burun Boğaz Ihtisas Dergisi: KBB, Journal of Ear, Nose, and Throat
https://www.readbyqxmd.com/read/27875410/should-we-use-driving-pressure-to-set-tidal-volume
#13
Domenico L Grieco, Lu Chen, Martin Dres, Laurent Brochard
PURPOSE OF REVIEW: Ventilator-induced lung injury (VILI) can occur despite use of tidal volume (VT) limited to 6 ml/kg of predicted body weight, especially in patients with a smaller aerated compartment (i.e. the baby lung) in which, indeed, tidal ventilation takes place. Because respiratory system static compliance (CRS) is mostly affected by the volume of the baby lung, the ratio VT/CRS (i.e. the driving pressure, ΔP) may potentially help tailoring interventions on VT setting. RECENT FINDINGS: Driving pressure is the ventilatory variable most strongly associated with changes in survival and has been shown to be the key mediator of the effects of mechanical ventilation on outcome in the acute respiratory distress syndrome...
February 2017: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/27869106/computerized-wheeze-detection-in-young-infants-comparison-of-signals-from-tracheal-and-chest-wall-sensors
#14
Lia C Puder, Silke Wilitzki, Christoph Bührer, Hendrik S Fischer, Gerd Schmalisch
Computerized wheeze detection is an established method for objective assessment of respiratory sounds. In infants, this method has been used to detect subclinical airway obstruction and to monitor treatment effects. The optimal location for the acoustic sensors, however, is unknown. The aim of this study was to evaluate the quality of respiratory sound recordings in young infants, and to determine whether the position of the sensor affected computerized wheeze detection. Respiratory sounds were recorded over the left lateral chest wall and the trachea in 112 sleeping infants (median postmenstrual age: 49 weeks) on 129 test occasions using an automatic wheeze detection device (PulmoTrack(®))...
December 2016: Physiological Measurement
https://www.readbyqxmd.com/read/27863117/unique-turbinal-morphology-in-horseshoe-bats-chiroptera-rhinolophidae
#15
Abigail A Curtis, Nancy B Simmons
The mammalian nasal fossa contains a set of delicate and often structurally complex bones called turbinals. Turbinals and associated mucosae function in regulating respiratory heat and water loss, increasing surface area for olfactory tissue, and directing airflow within the nasal fossa. We used high-resolution micro-CT scanning to investigate a unique maxilloturbinal morphology in 37 species from the bat family Rhinolophidae, which we compared with those of families Hipposideridae, Megadermatidae, and Pteropodidae...
November 14, 2016: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/27790556/efficacy-of-sciatic-nerve-block-for-pain-management-in-below-knee-orthopaedic-surgery
#16
Subhadra Arun Sinha, Sandeep Champalal Mutha, Deepak Sadashiv Phalgune
INTRODUCTION: Perioperative pain management is an integral part of anaesthesia and patients are most satisfied if there is minimal or no pain after surgery. Sciatic nerve block provides postoperative pain relief after below knee surgery and knee surgery. Many studies with different approaches for sciatic nerve block have been conducted to demonstrate the efficacy of sciatic nerve block with different local anaesthetic drugs over the past decade. AIM: To study the efficacy of single-shot sciatic nerve block for postoperative pain management in below knee orthopaedic surgery...
September 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27786168/computerized-respiratory-sound-analysis-in-people-with-dementia-a-first-step-towards-diagnosis-and-monitoring-of-respiratory-conditions
#17
Vânia Rocha, Cristina Melo, Alda Marques
Computerized respiratory sound analysis has been shown to be an objective and reliable way to assess respiratory diseases. However, its application in non-collaborative populations, such as people with dementia, is still unknown. Therefore this study aimed to characterize normal and adventitious respiratory sounds (NRS; ARS) in older people with and without dementia. A cross-sectional study including two groups of 30 subjects with dementia and 30 subjects without dementia was performed. Digital auscultation was used to record NRS and ARS per breathing-phase (inspiration/expiration) at trachea and thorax...
November 2016: Physiological Measurement
https://www.readbyqxmd.com/read/27766526/implementation-of-a-novel-postoperative-monitoring-system-using-automated-modified-early-warning-scores-mews-incorporating-end-tidal-capnography
#18
Joseph M Blankush, Robbie Freeman, Joy McIlvaine, Trung Tran, Stephen Nassani, I Michael Leitman
Modified Early Warning Scores (MEWS) provide real-time vital sign (VS) trending and reduce ICU admissions in post-operative patients. These early warning calculations classically incorporate oxygen saturation, heart rate, respiratory rate, systolic blood pressure, and temperature but have not previously included end-tidal CO2 (EtCO2), more recently identified as an independent predictor of critical illness. These systems may be subject to failure when physiologic data is incorrectly measured, leading to false alarms and increased workload...
October 20, 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/27745883/-conditional-probability-analysis-between-tinnitus-and-comorbidities-in-patients-attending-the-national-rehabilitation-institute-lgii-in-the-period-2012-2013
#19
Verónica Gómez Toledo, Ileana Gutiérrez Farfán, Antonio Verduzco-Mendoza, Emilio Arch-Tirado
BACKGROUND: Tinnitus is defined as the conscious perception of a sensation of sound that occurs in the absence of an external stimulus. This audiological symptom affects 7% to 19% of the adult population. The aim of this study is to describe the associated comorbidities present in patients with tinnitus usingjoint and conditional probability analysis. PATIENTS: Patients of both genders, diagnosed with unilateral or bilateral tinnitus, aged between 20 and 45 years, and had a full computerised medical record, were selected...
October 13, 2016: Cirugia y Cirujanos
https://www.readbyqxmd.com/read/27732575/fossil-evidence-of-the-avian-vocal-organ-from-the-mesozoic
#20
Julia A Clarke, Sankar Chatterjee, Zhiheng Li, Tobias Riede, Federico Agnolin, Franz Goller, Marcelo P Isasi, Daniel R Martinioni, Francisco J Mussel, Fernando E Novas
From complex songs to simple honks, birds produce sounds using a unique vocal organ called the syrinx. Located close to the heart at the tracheobronchial junction, vocal folds or membranes attached to modified mineralized rings vibrate to produce sound. Syringeal components were not thought to commonly enter the fossil record, and the few reported fossilized parts of the syrinx are geologically young (from the Pleistocene and Holocene (approximately 2.5 million years ago to the present)). The only known older syrinx is an Eocene specimen that was not described or illustrated...
October 27, 2016: Nature
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