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Auscultation

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https://www.readbyqxmd.com/read/28227933/classification-of-severity-of-mitral-regurgitation-patients-using-multifractal-analysis
#1
Rijil Thomas, Ling Lieng Hsi, Soh Cheong Boon, Erry Gunawan, Rijil Thomas, Ling Lieng Hsi, Soh Cheong Boon, Erry Gunawan, Soh Cheong Boon, Erry Gunawan, Ling Lieng Hsi
Owing to its efficiency and cost effectiveness, auscultation using a stethoscope is the primary diagnosis method preferred by most medical examiners for cardiovascular disease. Phonocardiography (PCG) is the next level of auscultation and an effective analysis technique in cardiology. This paper presents a method to quantify Mitral Regurgitation (MR) using PCG. MR is one of the most common cardiovascular diseases associated with a defect in mitral valve. We analyzed the multifractal nature of heart sounds with murmur followed by classification and clustering using Hurst exponents...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227728/comparison-between-users-of-a-new-methodology-for-heart-sound-auscultation
#2
Ana Castro, Pedro Gomes, Sandra S Mattos, Miguel T Coimbra, Ana Castro, Pedro Gomes, Sandra S Mattos, Miguel T Coimbra, Ana Castro, Sandra S Mattos, Pedro Gomes, Miguel Y Coimbra
Auscultation is a routine exam and the first line of screening in heart pathologies. The objective of this study was to assess if using a new data collection system, the DigiScope Collector, with a guided and automatic annotation of heart auscultation, different levels of expertise/experience users could collect similar digital auscultations. Data were collected within the Heart Caravan Initiative (Paraíba, Brasil). Patients were divided into two study groups: Group 1 evaluated by a third year medical student (User 1), and an experienced nurse (User 2); Group 2 evaluated by User 2 and an Information Technology professional (User 3)...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227727/the-effect-of-data-exchange-protocols-on-decision-support-systems-for-heart-sounds
#3
P Gomes, S Faria, M Coimbra, P Gomes, S Faria, M Coimbra, P Gomes, S Faria, M Coimbra
Heart auscultation is one of the basic exams performed during a patient physical examination, but it is also one that has a high skill ceiling. Decision support systems can provide physicians with a tool that can help to reduce the demanding skill requirements of this exam. Nevertheless, this second opinion needs to be delivered in a timely interval in order to be truly useful for a physician. To do this we need not only optimized algorithms, but also a well designed system. In this paper, we have studied how two different data exchange protocols, that define how data should be transferred from an acquisition to a process module, can impact the celerity of delivering second opinion to a physician...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227481/identi-wheez-a-device-for-in-home-diagnosis-of-asthma
#4
Guy Satat, Krithika Ramchander, Ramesh Raskar, Guy Satat, Krithika Ramchander, Ramesh Raskar, Guy Satat, Ramesh Raskar, Krithika Ramchander
Asthma is the most common chronic illness among children. The skills required to diagnose it make it an even greater concern. In this work, we present a child-friendly wearable device, which allows in-home diagnosis of asthma. The device acquires simultaneous measurements from multiple stethoscopes. The recordings are then sent to a specialist who uses assistive diagnosis algorithms that enable auscultation (listening to lung sounds with a stethoscope) at any location in the lungs volume by sound refocusing...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227309/an-analysis-of-sounds-for-lungs-with-excessive-water
#5
Kah Jun Hong, Wee Ser, David Chee-Guan Foo, Kah Jun Hong, Wee Ser, David Chee-Guan Foo, Wee Ser, Kah Jun Hong, David Chee-Guan Foo
Excessive lung water occurs when too much water accumulates in the lung, causing breathing difficulty. Current diagnosis methods include X-rays and CT-scans. However, because of their bulk and the need for trained professionals to operate, physicians rely on auscultation for preliminary diagnosis. Recent attempts have been made to automate the auscultation process and some degree of success has been reported. Thus, it would be useful to provide more analysis of such lung sounds. This paper attempts to study the characteristics of breathing sounds from lungs with excessive water and compare them with breathing sounds from healthy lungs...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227259/detection-of-patients-considering-observation-frequency-of-continuous-and-discontinuous-adventitious-sounds-in-lung-sounds
#6
Naoki Nakamura, Masaru Yamashita, Shoichi Matsunaga, Naoki Nakamura, Masaru Yamashita, Shoichi Matsunaga, 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/28227257/why-should-you-model-time-when-you-use-markov-models-for-heart-sound-analysis
#7
Jorge Oliveira, Theofrastos Mantadelis, Miguel Coimbra, Jorge Oliveira, Theofrastos Mantadelis, Miguel Coimbra, Jorge Oliveira, Miguel Coimbra, Theofrastos Mantadelis
Auscultation is a widely used technique in clinical activity to diagnose heart diseases. However, heart sounds are difficult to interpret because a) of events with very short temporal onset between them (tens of milliseconds) and b) dominant frequencies that are out of the human audible spectrum. In this paper, we propose a model to segment heart sounds using a semi-hidden Markov model instead of a hidden Markov model. Our model in difference from the state-of-the-art hidden Markov models takes in account the temporal constraints that exist in heart cycles...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227154/teaching-cardiopulmonary-auscultation-in-workshops-using-a-virtual-patient-simulation-technology-a-pilot-study
#8
D Pereira, P Gomes, S Faria, R Cruz-Correia, M Coimbra, D Pereira, P Gomes, S Faria, R Cruz-Correia, M Coimbra, P Gomes, R Cruz-Correia, S Faria, M Coimbra, D Pereira
Auscultation is currently both a powerful screening tool, providing a cheap and quick initial assessment of a patient's clinical condition, and a hard skill to master. The teaching of auscultation in Universities is today reduced to an unsuitable number of hours. Virtual patient simulators can potentially mitigate this problem, by providing an interesting high-quality alternative to teaching with real patients or patient simulators. In this paper we evaluate the pedagogical impact of using a virtual patient simulation technology in a short workshop format for medical students, training them to detect cardiac pathologies...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226619/application-of-semi-supervised-deep-learning-to-lung-sound-analysis
#9
Daniel Chamberlain, Rahul Kodgule, Daniela Ganelin, Vivek Miglani, Richard Ribon Fletcher, Daniel Chamberlain, Rahul Kodgule, Daniela Ganelin, Vivek Miglani, Richard Ribon Fletcher, Vivek Miglani, Daniel Chamberlain, Richard Ribon Fletcher, Rahul Kodgule, Daniela Ganelin
The analysis of lung sounds, collected through auscultation, is a fundamental component of pulmonary disease diagnostics for primary care and general patient monitoring for telemedicine. Despite advances in computation and algorithms, the goal of automated lung sound identification and classification has remained elusive. Over the past 40 years, published work in this field has demonstrated only limited success in identifying lung sounds, with most published studies using only a small numbers of patients (typically N<;20) and usually limited to a single type of lung sound...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226493/towards-an-unsupervised-device-for-the-diagnosis-of-childhood-pneumonia-in-low-resource-settings-automatic-segmentation-of-respiratory-sounds
#10
J Sola, F Braun, E Muntane, C Verjus, M Bertschi, F Hugon, S Manzano, M Benissa, A Gervaix, J Sola, F Braun, E Muntane, C Verjus, M Bertschi, F Hugon, S Manzano, M Benissa, A Gervaix, F Hugon, C Verjus, A Gervaix, S Manzano, M Bertschi, E Muntane, M Benissa, J Sola, F Braun
Pneumonia remains the worldwide leading cause of children mortality under the age of five, with every year 1.4 million deaths. Unfortunately, in low resource settings, very limited diagnostic support aids are provided to point-of-care practitioners. Current UNICEF/WHO case management algorithm relies on the use of a chronometer to manually count breath rates on pediatric patients: there is thus a major need for more sophisticated tools to diagnose pneumonia that increase sensitivity and specificity of breath-rate-based algorithms...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28191626/intermittent-auscultation-ia-of-fetal-heart-rate-in-labour-for-fetal-well-being
#11
REVIEW
Ruth Martis, Ova Emilia, Detty S Nurdiati, Julie Brown
BACKGROUND: The goal of fetal monitoring in labour is the early detection of a hypoxic baby. There are a variety of tools and methods available for intermittent auscultation (IA) of the fetal heart rate (FHR). Low- and middle-income countries usually have only access to a Pinard/Laënnec or the use of a hand-held Doppler device. Currently, there is no robust evidence to guide clinical practice on the most effective IA tool to use, timing intervals and length of listening to the fetal heart for women during established labour...
February 13, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28188079/current-practices-in-home-management-of-nasogastric-tube-placement-in-pediatric-patients-a-survey-of-parents-and-homecare-providers
#12
LaDonna Northington, Beth Lyman, Peggi Guenter, Sharon Y Irving, Lori Duesing
: Enteral feeding tubes are used in pediatric patients to deliver nutrition, fluids or medications. The literature related to short-term feeding tube (nasogastric [NG], hereafter known as NGT, or orogastric [OGT],) use in pediatric homecare patients is sparse. This descriptive study sought to gather baseline information about these children and how their feeding tubes are managed at home. Specifically, we sought to better understand how the tubes are placed and the method(s) used for tube placement verification...
February 7, 2017: Journal of Pediatric Nursing
https://www.readbyqxmd.com/read/28174004/beneficial-redundancy-did-we-forget-the-benefit-of-auscultation-of-breath-sounds
#13
Jeffrey Bennett
No abstract text is available yet for this article.
January 13, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28163427/rheumatic-heart-disease-screening-current-concepts-and-challenges
#14
REVIEW
Scott Dougherty, Maziar Khorsandi, Philip Herbst
Rheumatic heart disease (RHD) is a disease of poverty, is almost entirely preventable, and is the most common cardiovascular disease worldwide in those under 25 years. RHD is caused by acute rheumatic fever (ARF) which typically results in cumulative valvular lesions that may present clinically after a number of years of subclinical disease. Therapeutic interventions, therefore, typically focus on preventing subsequent ARF episodes (with penicillin prophylaxis). However, not all patients with ARF develop symptoms and not all symptomatic cases present to a physician or are correctly diagnosed...
January 2017: Annals of Pediatric Cardiology
https://www.readbyqxmd.com/read/28157275/continuous-cardiotocography-ctg-as-a-form-of-electronic-fetal-monitoring-efm-for-fetal-assessment-during-labour
#15
REVIEW
Zarko Alfirevic, Declan Devane, Gillian Ml Gyte, Anna Cuthbert
BACKGROUND: Cardiotocography (CTG) records changes in the fetal heart rate and their temporal relationship to uterine contractions. The aim is to identify babies who may be short of oxygen (hypoxic) to guide additional assessments of fetal wellbeing, or determine if the baby needs to be delivered by caesarean section or instrumental vaginal birth. This is an update of a review previously published in 2013, 2006 and 2001. OBJECTIVES: To evaluate the effectiveness and safety of continuous cardiotocography when used as a method to monitor fetal wellbeing during labour...
February 3, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28155280/poor-consistency-in-evaluating-south-african-adults-with-neurogenic-dysphagia
#16
Mckinley Andrews, Mershen Pillay
BACKGROUND: Speech-language therapists are specifically trained in clinically evaluating swallowing in adults with acute stroke. Incidence of dysphagia following acute stroke is high in South Africa, and health implications can be fatal, making optimal management of this patient population crucial. However, despite training and guidelines for best practice in clinically evaluating swallowing in adults with acute stroke, there are low levels of consistency in these practice patterns. OBJECTIVE: The aim was to explore the clinical practice activities of speech-language therapists in the clinical evaluation of swallowing in adults with acute stroke...
January 23, 2017: South African Journal of Communication Disorders. die Suid-Afrikaanse Tydskrif Vir Kommunikasieafwykings
https://www.readbyqxmd.com/read/28150431/should-learners-reason-one-step-at-a-time-a-randomised-trial-of-two-diagnostic-scheme-designs
#17
Sarah Blissett, Deric Morrison, David McCarty, Matthew Sibbald
CONTEXT: Making a diagnosis can be difficult for learners as they must integrate multiple clinical variables. Diagnostic schemes can help learners with this complex task. A diagnostic scheme is an algorithm that organises possible diagnoses by assigning signs or symptoms (e.g. systolic murmur) to groups of similar diagnoses (e.g. aortic stenosis and aortic sclerosis) and provides distinguishing features to help discriminate between similar diagnoses (e.g. carotid pulse). The current literature does not identify whether scheme layouts should guide learners to reason one step at a time in a terminally branching scheme or weigh multiple variables simultaneously in a hybrid scheme...
February 2, 2017: Medical Education
https://www.readbyqxmd.com/read/28150025/initial-field-test-of-a-cloud-based-cardiac-auscultation-system-to-determine-murmur-etiology-in-rural-china
#18
Lee Pyles, Pouya Hemmati, J Pan, Xiaoju Yu, Ke Liu, Jing Wang, Andreas Tsakistos, Bistra Zheleva, Weiguang Shao, Quan Ni
A system for collection, distribution, and long distant, asynchronous interpretation of cardiac auscultation has been developed and field-tested in rural China. We initiated a proof-of-concept test as a critical component of design of a system to allow rural physicians with little experience in evaluation of congenital heart disease (CHD) to obtain assistance in diagnosis and management of children with significant heart disease. The project tested the hypothesis that acceptable screening of heart murmurs could be accomplished using a digital stethoscope and internet cloud transmittal to deliver phonocardiograms to an experienced observer...
February 2, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28125772/cardiotocography-versus-intermittent-auscultation-of-fetal-heart-on-admission-to-labour-ward-for-assessment-of-fetal-wellbeing
#19
REVIEW
Declan Devane, Joan G Lalor, Sean Daly, William McGuire, Anna Cuthbert, Valerie Smith
BACKGROUND: The admission cardiotocograph (CTG) is a commonly used screening test consisting of a short (usually 20 minutes) recording of the fetal heart rate (FHR) and uterine activity performed on the mother's admission to the labour ward. This is an update of a review published in 2012. OBJECTIVES: To compare the effects of admission cardiotocography with intermittent auscultation of the FHR on maternal and infant outcomes for pregnant women without risk factors on their admission to the labour ward...
January 26, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28124966/-a-case-of-bronchiolitis-obliterans-secondary-to-human-metapneumovirus-bronchiolitis
#20
Osman Yeşilbaş, Esra Şevketoğlu, Hasan Serdar Kıhtır, Mey Talip Petmezci, Elif Bato, Seda Balkaya, Nevin Hatipoğlu, Mert Ahmet Kuşkucu, Figen Palabıyık, Erkan Çakır
Human metapneumovirus (hMPV), formerly classified in Paramyxoviridae family is now moved into Pneumoviridae, which was described as a novel family. It causes upper and lower respiratory tract infections (LRTIs) usually in children younger than five years old. The recent epidemiological studies indicated that hMPV is the second most frequently detected virus in LRTIs of young children, following the respiratory syncytial virus (RSV). Bronchiolitis obliterans (BO) is a chronic obstructive lung disease characterized by fibrosis of the distal respiratory airways...
October 2016: Mikrobiyoloji Bülteni
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