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https://www.readbyqxmd.com/read/29154707/objective-evaluation-of-the-systemic-effects-of-topical-application-of-1-atropine-sulfate-ophthalmic-solution-in-healthy-horses
#1
Rita F Wehrman, Anne J Gemensky-Metzler, Ashley E Zibura, Amelia B Nyhart, Heather L Chandler
OBJECTIVE To determine the safety of topical administration of 1% atropine ophthalmic solution in healthy horses by objectively measuring gastrointestinal transit time. DESIGN Randomized, masked, controlled crossover study. ANIMALS 6 adult geldings. PROCEDURES Horses were randomly assigned (3/group) to first receive topical treatment of the left eye with 1% atropine or artificial tears solution; the right eye was left untreated. After 24 hours of treatment every 6 hours, 200 nontoxic beads were administered to each horse via nasogastric intubation and treatment frequency was decreased to every 12 hours for 4 more days...
December 1, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/29154421/haemodynamic-monitoring-of-cardiac-status-using-heart-sounds-from-an-implanted-cardiac-device
#2
Pramodsingh H Thakur, Qi An, Lynne Swanson, Yi Zhang, Roy S Gardner
AIM: The aim of this study was to evaluate the haemodynamic correlates of heart sound (HS) parameters such as third HS (S3), first HS (S1), and HS-based systolic time intervals (HSTIs) from an implantable cardiac device. METHODS AND RESULTS: Two unique animal models (10 swine with myocardial ischaemia and 11 canines with pulmonary oedema) were used to evaluate haemodynamic correlates of S1, S3, and HSTIs, namely, HS-based pre-ejection period (HSPEP), HS-based ejection time (HSET), and the ratio HSPEP/HSET during acute haemodynamic perturbations...
November 2017: ESC Heart Failure
https://www.readbyqxmd.com/read/29151003/lung-ultrasound-in-the-critically-ill-luci-a-translational-discipline
#3
Daniel A Lichtenstein, Manu L N G Malbrain
In the early days of ultrasound, it was not a translational discipline. The heart was claimed by cardiologists, with others, such as gynaecologists, urologists and vascular surgeons claiming their part while the rest was given to radiologists. Only recently, ultrasound transgressed and crossed the usual borders between the different disciplines, such as emergency and critical care medicine. The advent of portable machines in the early 1980s, allowed the critical care physician to perform bedside ultrasound, and the development of whole body critical care ultrasound (CCUS) was born...
November 18, 2017: Anaesthesiology Intensive Therapy
https://www.readbyqxmd.com/read/29143446/realism-in-paediatric-emergency-simulations-a-prospective-comparison-of-in-situ-low-fidelity-and-centre-based-high-fidelity-scenarios
#4
Fenton O'Leary, Ioannis Pegiazoglou, Kathryn McGarvey, Ruza Novakov, Ingrid Wolfsberger, Jennifer Peat
OBJECTIVE: To measure scenario participant and faculty self-reported realism, engagement and learning for the low fidelity, in situ simulations and compare this to high fidelity, centre-based simulations. METHODS: A prospective survey of scenario participants and faculty completing in situ and centre-based paediatric simulations. RESULTS: There were 382 responses, 276 from scenario participants and 106 from faculty with 241 responses from in situ and 141 from centre-based simulations...
November 16, 2017: Emergency Medicine Australasia: EMA
https://www.readbyqxmd.com/read/29142816/unilateral-pulmonary-edema-in-a-patient-with-worsening-tricuspid-valve-regurgitation-a-secret-inside-pulmonary-veins
#5
Elvira Resciniti, Ilaria Caso, Iside Scarfò, Giuseppe Di Pasquale, Giovanni La Canna
We present the case of a 69-year-old patient who was referred to the Department of Echocardiography for surgical treatment of severe tricuspid valve regurgitation (TVR) with advanced congestive heart failure. In 2013 the patient underwent unsuccessful percutaneous ablation for permanent atrial fibrillation. In 2015, following numerous episodes of atrial fibrillation and congestive heart failure with left pleural effusion, the patient was admitted to another center. A transthoracic echocardiogram showed severe TVR and moderate precapillary pulmonary hypertension, confirmed at right cardiac catheterization...
October 2017: Journal of Cardiovascular Echography
https://www.readbyqxmd.com/read/29138409/predicting-the-origin-of-ventricular-arrhythmia-using-acoustic-cardiography
#6
Chin-Yu Lin, Shih-Lin Chang, Yenn-Jiang Lin, Li-Wei Lo, Yu-Feng Hu, Tze-Fan Chao, Fa-Po Chung, Ta-Chuan Tuan, Jo-Nan Liao, Yao-Ting Chang, Abigail Louise D Te, Shinya Yamada, Hao-Min Cheng, Shih-Hsien Sung, Ling Kuo, Hsing-Yuan Li, Ting-Yung Chang, Hoang Quang Minh, Simon Salim, Ting-Chung Huang, Shih-Ann Chen
This study aimed to examine the relationship between measurements related to heart sounds and the origin of ventricular arrhythmia. We retrospectively evaluated 45 patients undergoing catheter ablation with contemporaneous digital acoustic cardiography of the first heart sound (S1) and the second heart sound (S2). The patients with baseline wide QRS morphology (>120 ms or aberrant conduction), heart failure, valvular heart disease, chronic pulmonary disease, and obesity were excluded. Ventricular arrhythmias from the left ventricle had an increased S1 complexity score and S1 duration in comparison to adjacent sinus beats...
November 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29122932/diagnostic-performance-of-an-acoustic-based-system-for-coronary-artery-disease-risk-stratification
#7
Simon Winther, Louise Nissen, Samuel Emil Schmidt, Jelmer Sybren Westra, Laust Dupont Rasmussen, Lars Lyhne Knudsen, Lene Helleskov Madsen, Jane Kirk Johansen, Bjarke Skogstad Larsen, Johannes Jan Struijk, Lars Frost, Niels Ramsing Holm, Evald Høj Christiansen, Hans Erik Botker, Morten Bøttcher
OBJECTIVE: Diagnosing coronary artery disease (CAD) continues to require substantial healthcare resources. Acoustic analysis of transcutaneous heart sounds of cardiac movement and intracoronary turbulence due to obstructive coronary disease could potentially change this. The aim of this study was thus to test the diagnostic accuracy of a new portable acoustic device for detection of CAD. METHODS: We included 1675 patients consecutively with low to intermediate likelihood of CAD who had been referred for cardiac CT angiography...
November 9, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/29122253/the-effect-of-nature-sounds-on-physiological-indicators-among-patients-in-the-cardiac-care-unit
#8
Tahereh Najafi Ghezeljeh, Maryam Nasari, Hamid Haghani, Habiballah Rezaei Loieh
BACKGROUND AND OBJECTIVES: Environmental noises may create physiological and psychological disorders in patients hospitalized in the CCU. Therefore, this study was conducted to investigate the effects of nature sounds on physiological indicators among patients in the CCU. MATERIALS & METHODS: This randomized clinical trial was conducted on 93 patients hospitalized in the cardiac care units of three teaching hospitals in 2016. The patients were selected using the convenient method with three randomized blocks...
November 2017: Complementary Therapies in Clinical Practice
https://www.readbyqxmd.com/read/29120036/rapid-assessment-with-physical-examination-in-dyspnoeic-cats-the-rapid-cat-study
#9
D Dickson, C J L Little, J Harris, M Rishniw
OBJECTIVES: To determine the underlying disease prevalence in acute feline dyspnoea and to examine whether historical and clinical examination findings can differentiate between acute cardiac and non-cardiac dyspnoea in cats in primary practice. MATERIALS AND METHODS: We prospectively enrolled cats presenting with dyspnoea for the first time to primary practice between June 1, 2011 and October 31, 2016. We collected signalment, historical and clinical data at presentation using a standard form...
November 9, 2017: Journal of Small Animal Practice
https://www.readbyqxmd.com/read/29104498/complexity-change-in-cardiovascular-disease
#10
REVIEW
Chang Chen, Yu Jin, Iek Long Lo, Hansen Zhao, Baoqing Sun, Qi Zhao, Jun Zheng, Xiaohua Douglas Zhang
With the fast development of wearable medical device in recent years, it becomes critical to conduct research on continuously measured physiological signals. Entropy is a key metric for quantifying the irregularity and/or complexity contained in human physiological signals. In this review, we focus on exploring how entropy changes in various physiological signals in cardiovascular diseases. Our review concludes that the direction of entropy change relies on the physiological signals under investigation. For heart rate variability and pulse index, the entropy of a healthy person is higher than that of a patient with cardiovascular diseases...
2017: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/29101915/pericarditis
#11
Atifur Rahman, Avadhesh Saraswat
BACKGROUND: Pericarditis is an important diagnosis to consider, along with various other differential diagnoses, in a patient who presents with chest pain. OBJECTIVE: This article describes in detail the common features, management and complications of pericarditis in the general practice setting. DISCUSSION: Characteristic clinical findings in pericarditis include pleuritic chest pain and pericardial friction rub on auscultation of the left lower sternal border...
November 2017: Australian Family Physician
https://www.readbyqxmd.com/read/29100627/locus-coeruleus-activity-mediates-hyperresponsiveness-in-posttraumatic-stress-disorder
#12
Christoph Naegeli, Thomas Zeffiro, Marco Piccirelli, Assia Jaillard, Anina Weilenmann, Katayun Hassanpour, Matthis Schick, Michael Rufer, Scott P Orr, Christoph Mueller-Pfeiffer
BACKGROUND: Patients with posttraumatic stress disorder (PTSD) are hyperresponsive to unexpected or potentially threatening environmental stimuli. Research in lower animals and humans suggests that sensitization of the locus coeruleus-norepinephrine system may underlie behavioral and autonomic hyperresponsiveness in PTSD. However, direct evidence linking locus coeruleus system hyperactivity to PTSD hyperresponsiveness is sparse. METHODS: Psychophysiological recording and functional magnetic resonance imaging were used during passive listening to brief, 95-dB sound pressure level, white noise bursts presented intermittently to determine whether behavioral and autonomic hyperresponsiveness to sudden sounds in PTSD is associated with locus coeruleus hyperresponsiveness...
September 7, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/29094875/heart-failure-with-preserved-ejection-fraction-diagnosis-and-management
#13
John D Gazewood, Patrick L Turner
Heart failure with preserved ejection fraction, also referred to as diastolic heart failure, causes almost one-half of the 5 million cases of heart failure in the United States. It is more common among older patients and women, and results from abnormalities of active ventricular relaxation and passive ventricular compliance, leading to a decline in stroke volume and cardiac output. Heart failure with preserved ejection fraction should be suspected in patients with typical symptoms (e.g., fatigue, weakness, dyspnea, orthopnea, paroxysmal nocturnal dyspnea, edema) and signs (S3 heart sound, displaced apical pulse, and jugular venous distension) of chronic heart failure...
November 1, 2017: American Family Physician
https://www.readbyqxmd.com/read/29094542/how-to-auscultate-for-heart-sounds-in-adults
#14
Sara Morgan
This article aims to improve nurses' knowledge and understanding of the procedure for auscultating heart sounds in adults, as part of a cardiovascular examination. It focuses on auscultating normal heart sounds; it is beyond the scope of this article to discuss the pathophysiology of abnormal findings. REFLECTIVE ACTIVITY: 'How to' articles can help update your practice and ensure it remains evidence-based. Apply this article to your practice. Reflect on and write a short account of.
September 27, 2017: Nursing Standard
https://www.readbyqxmd.com/read/29089896/a-comparative-study-on-fetal-heart-rates-estimated-from-fetal-phonography-and-cardiotocography
#15
Emad A Ibrahim, Shamsa Al Awar, Zuhur H Balayah, Leontios J Hadjileontiadis, Ahsan H Khandoker
The aim of this study is to investigate that fetal heart rates (fHR) extracted from fetal phonocardiography (fPCG) could convey similar information of fHR from cardiotocography (CTG). Four-channel fPCG sensors made of low cost (<$1) ceramic piezo vibration sensor within 3D-printed casings were used to collect abdominal phonogram signals from 20 pregnant mothers (>34 weeks of gestation). A novel multi-lag covariance matrix-based eigenvalue decomposition technique was used to separate maternal breathing, fetal heart sounds (fHS) and maternal heart sounds (mHS) from abdominal phonogram signals...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29066881/entropy-change-of-biological-dynamics-in-copd
#16
REVIEW
Yu Jin, Chang Chen, Zhixin Cao, Baoqing Sun, Iek Long Lo, Tzu-Ming Liu, Jun Zheng, Shixue Sun, Yan Shi, Xiaohua Douglas Zhang
In this century, the rapid development of large data storage technologies, mobile network technology, and portable medical devices makes it possible to measure, record, store, and track analysis of large amount of data in human physiological signals. Entropy is a key metric for quantifying the irregularity contained in physiological signals. In this review, we focus on how entropy changes in various physiological signals in COPD. Our review concludes that the entropy change relies on the types of physiological signals under investigation...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29064457/detection-of-stress-levels-from-biosignals-measured-in-virtual-reality-environments-using-a-kernel-based-extreme-learning-machine
#17
Dongrae Cho, Jinsil Ham, Jooyoung Oh, Jeanho Park, Sayup Kim, Nak-Kyu Lee, Boreom Lee
Virtual reality (VR) is a computer technique that creates an artificial environment composed of realistic images, sounds, and other sensations. Many researchers have used VR devices to generate various stimuli, and have utilized them to perform experiments or to provide treatment. In this study, the participants performed mental tasks using a VR device while physiological signals were measured: a photoplethysmogram (PPG), electrodermal activity (EDA), and skin temperature (SKT). In general, stress is an important factor that can influence the autonomic nervous system (ANS)...
October 24, 2017: Sensors
https://www.readbyqxmd.com/read/29063567/best-paper-selection
#18
(no author information available yet)
Agarwal V, Podchiyska T, Banda JM, Goel V, Leung TI, Minty EP, Sweeney TE, Gyang E, Shah NH. Learning statistical models of phenotypes using noisy labeled training data. J Am Med Inform Assoc 2016;23(6):1166-73 https://academic.oup.com/jamia/article-lookup/doi/10.1093/jamia/ocw028 Harmanci A, Gerstein M. Quantification of private information leakage from phenotype-genotype data: linking attacks. Nat Methods 2016;13(3):251-6 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4834871/ Pfiffner PB, Pinyol I, Natter MD, Mandl KD...
August 2017: Yearbook of Medical Informatics
https://www.readbyqxmd.com/read/29063551/best-paper-selection
#19
(no author information available yet)
Arnold CW, Wallace WD, Chen S, Oh A, Abtin F, Genshaft S, Binder S, Aberle D, Enzmann D. RadPath: A web-based system for integrating and correlating radiology and pathology findings during cancer diagnosis. Acad Radiol 2016 Jan;23(1):90-100 http://escholarship.org/uc/item/22x4021q Hravnak M, Chen L, Dubrawski A, Bose E, Clermont G, Pinsky MR. Real alerts and artifact classification in archived multi-signal vital sign monitoring data: implications for mining big data. J Clin Monit Comput 2016 Dec;30(6):875-88 https://link...
August 2017: Yearbook of Medical Informatics
https://www.readbyqxmd.com/read/29060918/identification-of-chronic-heart-failure-using-linear-and-nonlinear-analysis-of-heart-sound
#20
Yineng Zheng, Xingming Guo
Chronic heart failure (CHF) is a cardiac condition caused by various of cardiac diseases in the end stage. This paper employed the linear and nonlinear approaches to analyze the heart sound (HS) signals from the patients with CHF. The linear approaches include the time and frequency domain analysis. The nonlinear parameters include largest Lyapunov exponent, correlation dimension, sample entropy and the width of multifractal spectrum, which describe the chaos, fractal characteristics and complexity of the HS signals...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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