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https://www.readbyqxmd.com/read/28718893/association-between-maternal-vascular-murmur-and-the-small-for-gestational-age-fetus-with-abnormal-umbilical-artery-doppler-flow
#1
Diana Riknagel, Richard Farlie, Morten Hedegaard, Peter Humaidan, Johannes J Struijk
OBJECTIVE: To investigate the association between maternal vascular murmurs (MVMs) and fetal growth restriction (defined as small-for-gestational-age [SGA] fetus) and abnormal Doppler pulsatility index (PI) of the uterine and/or umbilical arteries. METHODS: A cross-sectional study of women aged 18 years or older with a singleton pregnancy at 28-34 weeks was conducted at Regional Hospital Viborg, Denmark, between May 1 and August 1, 2013. Ultrasound fetal biometry was performed and the Doppler PI of the umbilical and uterine arteries was determined...
July 18, 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28702947/initial-validation-of-a-healthcare-needs-scale-for-youth-with-congenital-heart-disease
#2
Chi-Wen Chen, Ciao-Lin Ho, Wen-Jen Su, Jou-Kou Wang, Hung-Tao Chung, Pi-Chang Lee, Chun-Wei Lu, Be-Tau Hwang
AIM: To validate the initial psychometric properties of a Healthcare Needs Scale for Youth with Congenital Heart Disease. BACKGROUND: As the number of patients with congenital heart disease surviving to adulthood increases, the transitional healthcare needs for adolescents and young adults with congenital heart disease require investigation. However, few tools comprehensively identify the healthcare needs of youth with congenital heart disease. DESIGN: A cross-sectional study was employed to examine the psychometric properties of the Healthcare Needs Scale for Youth with Congenital Heart Disease...
July 12, 2017: Journal of Advanced Nursing
https://www.readbyqxmd.com/read/28699082/combat-stress-decreases-memory-of-warfighters-in-action
#3
Rosa Delgado-Moreno, José Juan Robles-Pérez, Vicente Javier Clemente-Suárez
The present research aimed to analyze the effect of combat stress in the psychophysiological response and attention and memory of warfighters in a simulated combat situation. Variables of blood oxygen saturation, heart rate, blood glucose, blood lactate, body temperature, lower body muscular strength manifestation, cortical arousal, autonomic modulation, state anxiety and memory and attention through a postmission questionnaire were analyzed before and after a combat simulation in 20 male professional Spanish Army warfighters...
August 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/28696334/recent-advances-in-heart-sound-analysis
#4
Gari D Clifford, Chengyu Liu, Benjamin E Moody, José Millet Roig, Samuel E Schmidt, Qiao Li, Ikaro Silva, Roger G Mark
Heart sounds have been widely studied and have been demonstrated to have value for detecting pathologies in clinical applications. Over the last few decades, the use of heart sound signals has become increasingly uncommon and its practice in modern medicine somewhat diminished, although research into automated analysis has continued. Unfortunately, a comparative analyses of algorithms in the literature have been hindered by the lack of high-quality, rigorously validated, and standardized open databases of heart sound recordings...
July 11, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28688483/imaging-of-heart-acoustic-based-on-the-sub-space-methods-using-a-microphone-array
#5
Hanie Moghaddasi, Farshad Almasganj, Arezoo Zoroufian
BACKGROUND AND OBJECTIVES: Heart disease is one of the leading causes of death around the world. Phonocardiogram (PCG) is an important bio-signal which represents the acoustic activity of heart, typically without any spatiotemporal information of the involved acoustic sources. The aim of this study is to analyze the PCG by employing a microphone array by which the heart internal sound sources could be localized, too. METHOD: In this paper, it is intended to propose a modality by which the locations of the active sources in the heart could also be investigated, during a cardiac cycle...
July 2017: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/28684376/the-association-between-arterial-stiffness-initial-stroke-severity-and-3-week-outcomes-in-patients-with-ischemic-stroke
#6
Emma Ormerod, Khalid Ali, James Cameron, Muzaffar Malik, Richard Lee, Spas Getov, Chakravarthi Rajkumar
OBJECTIVES: Vascular compliance is emerging as a useful cardiovascular risk factor. The aim of this study was to investigate the association between arterial stiffness and stroke severity at presentation and 3 weeks. METHODS: Forty two patients with acute ischemic stroke (55% male, mean age 71 years) were recruited over 15-months. Stroke subtypes were classified into lacunar circulation infarct (LACI), partial anterior circulation infarct (PACI), and posterior circulation infarct (POCI)...
July 3, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28678697/in-ear-audio-wearable-measurement-of-heart-and-breathing-rates-for-health-and-safety-monitoring
#7
Alexis Martin, Jeremie Voix
OBJECTIVE: This paper examines the integration of a non-invasive vital sign monitoring feature into the workers' hearing protection devices (HPDs) by using a microphone positioned within the earcanal under the HPD. METHODS: 25 test-subjects were asked to breathe at various rhythms and intensities and these realistic sound events were recorded in the earcanal. Digital signal processing algorithms were then developed to assess heart and breathing rates. Finally, to test the robustness of theses algorithms in noisy work environments, industrial noise was added to the in-ear recorded signals and an adaptive denoising filter was used...
June 27, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28676955/a-novel-approach-for-acoustic-estimation-of-neck-fluid-volume-between-men-and-women
#8
Mehrnaz Shokrollahi, Frank Rudzicz, Daniel Vena, T Douglas Bradley, Azadeh Yadollahi
Obstructive Sleep apnea can be caused by fluid shift from the legs to the neck that narrows the upper airway (UA) and contributes to changes in tracheal sound. Tracheal sound is generated from the turbulent airflow in the pharynx and respiratory airways and it has recently been used to estimate increases in neck fluid volume (NFV). However, tracheal sound is also highly variable among people, especially across the sexes. In this paper, a novel method is proposed to select tracheal sound features towards estimating NFV in men and women separately...
July 5, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/28671499/focal-intramural-pericardial-effusion-and-cardiac-tamponade-associated-with-necrotic-adipose-tissue-in-a-dog
#9
Terence A Krentz, Robert J Schutrumpf, Julie C Zitz
CASE DESCRIPTION A 1-year-old castrated male German Shepherd Dog was examined because of an acute onset of lethargy, tachypnea, and inappetence. CLINICAL FINDINGS On initial physical examination, the dog was tachypneic with muffled heart sounds on thoracic auscultation and a palpable abdominal fluid wave. Transthoracic echocardiography revealed focal intramural pericardial effusion and cardiac tamponade. TREATMENT AND OUTCOME The patient underwent emergency therapeutic pericardiocentesis, followed by right lateral intercostal thoracotomy and subtotal pericardiectomy...
July 15, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/28659370/when-your-patient-clicks-a-loud-clicking-sound-as-a-key-sign-to-the-diagnosis
#10
Verena Charlotte Wilzeck, Christopher Hansi, Urs Hufschmid, Juerg Hans Beer
A 19-year-old male patient was referred by his general practitioner with a new 'cardiac murmur'. For 1 week, he had been able to provoke a clicking sound, which was in time with his heart beat and originated from his chest. The physical examination and laboratory tests were normal. The sound was initially interpreted as most likely due to a valve condition such as mitral valve prolapse, but a transthoracic echocardiogram was normal. A cardiac CT was obtained, which showed left-sided ventral pneumothorax.The Hamman's sign is a loud precordial pulse synchronous sound, which is often postural...
June 28, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28655800/improving-adherence-to-essential-birth-practices-using-the-who-safe-childbirth-checklist-with-peer-coaching-experience-from-60-public-health-facilities-in-uttar-pradesh-india
#11
Megan Marx Delaney, Pinki Maji, Tapan Kalita, Nabihah Kara, Darpan Rana, Krishan Kumar, Jenny Masoinneuve, Simon Cousens, Atul A Gawande, Vishwajeet Kumar, Bhala Kodkany, Narender Sharma, Rajiv Saurastri, Vinay Pratap Singh, Lisa R Hirschhorn, Katherine Ea Semrau, Rebecca Firestone
BACKGROUND: Adherence to evidence-based essential birth practices is critical for improving health outcomes for mothers and newborns. The WHO Safe Childbirth Checklist (SCC) incorporates these practices, which occur during 4 critical pause points: on admission, before pushing (or cesarean delivery), soon after birth, and before discharge. A peer-coaching strategy to support consistent use of the SCC may be an effective approach to increase birth attendants' adherence to these practices...
June 27, 2017: Global Health, Science and Practice
https://www.readbyqxmd.com/read/28654638/increased-inspiratory-resistance-affects-the-dynamic-relationship-between-blood-pressure-changes-and-subarachnoid-space-width-oscillations
#12
Magdalena Wszedybyl-Winklewska, Jacek Wolf, Ewa Swierblewska, Katarzyna Kunicka, Kamila Mazur, Marcin Gruszecki, Pawel J Winklewski, Andrzej F Frydrychowski, Leszek Bieniaszewski, Krzysztof Narkiewicz
BACKGROUND AND OBJECTIVE: Respiration is known to affect cerebrospinal fluid (CSF) movement. We hypothesised that increased inspiratory resistance would affect the dynamic relationship between blood pressure (BP) changes and subarachnoid space width (SAS) oscillations. METHODS: Experiments were performed in a group of 20 healthy volunteers undergoing controlled intermittent Mueller Manoeuvres (the key characteristic of the procedure is that a studied person is subjected to a controlled, increased inspiratory resistance which results in marked potentiation of the intrathoracic negative pressure)...
2017: PloS One
https://www.readbyqxmd.com/read/28641244/computerized-lung-sound-screening-for-pediatric-auscultation-in-noisy-field-environments
#13
Dimitra Emmanouilidou, Eric D McCollum, Daniel E Park, Mounya Elhilali
GOAL: Chest auscultations offer a non-invasive and low-cost tool for monitoring lung disease. However, they present many shortcomings including inter-listener variability, subjectivity, and vulnerability to noise and distortions. The current work proposes a computer-aided approach to process lung signals acquired in the field under adverse noisy conditions, by improving the signal quality and offering automated iden- tification of abnormal auscultations indicative of respiratory pathologies...
June 19, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28635904/-myocardial-fibrosis-current-aspects-of-the-problem
#14
V N Karetnikova, V V Kashtalap, S N Kosareva, O L Barbarash
Fibrosis is one of the main components in the progression of most cardiovascular diseases, including coronary heart disease, by causing structural changes in the myocardium and vascular wall. The quantitative and qualitative characteristics of fibrosis of the myocardium are responsible for decreasing its elastic properties, developing diastolic dysfunction, impairing myocardial contractility, developing systolic dysfunction and cardiac arrhythmias, and worsening coronary blood flow in patients with heart failure of different etiologies...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28615157/designing-prototyping-and-evaluating-digital-mindfulness-applications-a-case-study-of-mindful-breathing-for-stress-reduction
#15
Bin Zhu, Anders Hedman, Shuo Feng, Haibo Li, Walter Osika
BACKGROUND: During the past decade, there has been a rapid increase of interactive apps designed for health and well-being. Yet, little research has been published on developing frameworks for design and evaluation of digital mindfulness facilitating technologies. Moreover, many existing digital mindfulness applications are purely software based. There is room for further exploration and assessment of designs that make more use of physical qualities of artifacts. OBJECTIVE: The study aimed to develop and test a new physical digital mindfulness prototype designed for stress reduction...
June 14, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/28613208/ensemble-methods-with-outliers-for-phonocardiogram-classification
#16
Masun Nabhan Homsi, Philip Warrick
Heart sound classification and analysis play an important role in early diagnosis and prevention of cardiovascular disease. To this end, this paper introduces a novel method for automatic classification of normal and abnormal heart sound recordings. Signals are first preprocessed to extract a total of 131 features in time, frequency, wavelet and statistical domains from the entire signal and from the timings of the states. Outlier signals are then detected and separated from those with a standard range using interquartile range algorithm...
June 14, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28611139/unrecognised-diaphragmatic-hernia-in-a-refugee-child-an-incidental-diagnosis
#17
Dimitri Poddighe, Tiziana Boggini, Salvatore Savasta, Gian Luigi Marseglia
A 4-year-old boy from Syria was evaluated at the emergency department because of an upper airway viral illness. His physical examination showed a significant intensity reduction of all heart sounds in the absence of any other pathological signs. As the child was affected with Down's syndrome and had suffered thoracic and abdominal trauma because of bombardments, a diaphragmatic hernia was immediately suspected and was confirmed through a simple chest X-ray. A careful clinical examination is crucial in refugee children and adolescents, as several medical and surgical disorders could have escaped previously...
June 13, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28604999/percutaneous-cardiac-support-during-myocardial-infarction-drastically-reduces-mortality-perspectives-from-a-swine-model
#18
Maria Giovanna Trivella, Alessandra Piersigilli, Fabio Bernini, Gualtiero Pelosi, Silvia Burchielli, Stefano Puzzuoli, Claudia Kusmic, Antonio L'Abbate
BACKGROUND/AIMS: Acute myocardial infarction (AMI) with cardiogenic shock (CS) remains the leading cause of in-hospital death in acute coronary syndromes. In the AMI-CS pig model we tested the efficacy of temporary percutaneous cardiorespiratory assist device (PCRA) in rescuing the failing heart and reducing early mortality. METHODS: In open-chest pigs we induced AMI by proximal left anterior descending coronary artery (LAD) ligation. Eight animals without PCRA (C group) were compared with 12 animals otherwise treated with PCRA (T group), starting approximately at 60 minutes post-occlusion and lasting 120-180 minutes...
July 5, 2017: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/28596461/classification-of-pulmonary-pathology-from-breath-sounds-using-the-wavelet-packet-transform-and-an-extreme-learning-machine
#19
Rajkumar Palaniappan, Kenneth Sundaraj, Sebastian Sundaraj, N Huliraj, S S Revadi
BACKGROUND: Auscultation is a medical procedure used for the initial diagnosis and assessment of lung and heart diseases. From this perspective, we propose assessing the performance of the extreme learning machine (ELM) classifiers for the diagnosis of pulmonary pathology using breath sounds. METHODS: Energy and entropy features were extracted from the breath sound using the wavelet packet transform. The statistical significance of the extracted features was evaluated by one-way analysis of variance (ANOVA)...
June 8, 2017: Biomedizinische Technik. Biomedical Engineering
https://www.readbyqxmd.com/read/28594641/detection-of-pathological-heart-sounds
#20
Mostafa Abdollahpur, Ali Ghaffari, Shadi Ghiasi, Mohammad Javad Mollakazemi
Heart sound analysis has been a major topic of research during the past few decades. However, necessity for a large reliable and database has been a major concern in these studies. Noting that the current heart sound classification methods do not work properly for noisy signals, the PhysioNet/CinC Challenge 2016 aims at developing the heart sound classification algorithms by providing a global open database for challengers. This paper addresses the problem of heart sound classification methods within noisy real-world phonocardiogram (PCG) recordings by implementing an innovative approach...
June 8, 2017: Physiological Measurement
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