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https://www.readbyqxmd.com/read/29344043/assessment-of-the-midwifery-students-clinical-competency-before-internship-program-in-the-field-based-on-the-objective-structured-clinical-examination
#1
Narges Malakooti, Parvin Bahadoran, Soheyla Ehsanpoor
Background: One of the important goals of clinical education is to promote the level of students' clinical skills. About 50% of the midwifery education is focused on clinical education, which has a great importance in shaping the professional skills of the students. The aim of this study was to determine the ability of students in some practical skills, before internship program in the field, using objective structured clinical examination (OSCE). Materials and Methods: This research was a descriptive cross-sectional study with a single-stage, multivariate prospective design...
January 2018: Iranian Journal of Nursing and Midwifery Research
https://www.readbyqxmd.com/read/29336780/advances-in-non-contrast-quiescent-interval-slice-selective-qiss-magnetic-resonance-angiography
#2
REVIEW
R R Edelman, M Carr, I Koktzoglou
There is a pressing clinical need to develop accurate, efficient non-contrast magnetic resonance angiography (NC-MRA) techniques. Our efforts in the field have focused on a novel non-subtractive technique called quiescent-interval slice-selective (QISS) MRA. Compared with other NC-MRA techniques, QISS has the advantage of being more accurate while enabling a simpler and more efficient workflow. The original implementation, which uses electrocardiogram (ECG) gating and a Cartesian k-space trajectory, is a reliable technique for the evaluation of peripheral arterial disease (PAD)...
January 11, 2018: Clinical Radiology
https://www.readbyqxmd.com/read/29331435/complications-of-chronic-total-occlusion-percutaneous-coronary-intervention-subepicardial-hematoma
#3
Punag Divanji, Kendrick Shunk
A 67-year-old man with coronary artery disease and previous coronary underwent successful Guideliner reverse CART percutaneous coronary intervention of a chronic total occlusion of the right coronary artery. He later developed evidence of myocardial ischemia, and imaging, including angiogram, echocardiogram, and cardiac computed tomography revealing active dye extravasation from the previously normal RV marginal branches, in addition to a large subepicardial hematoma. Despite these dramatic findings, the patient remained hemodynamically stable and pain-free, with resolving ECG changes...
December 30, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/29321268/computational-techniques-for-ecg-analysis-and-interpretation-in-light-of-their-contribution-to-medical-advances
#4
REVIEW
Aurore Lyon, Ana Mincholé, Juan Pablo Martínez, Pablo Laguna, Blanca Rodriguez
Widely developed for clinical screening, electrocardiogram (ECG) recordings capture the cardiac electrical activity from the body surface. ECG analysis can therefore be a crucial first step to help diagnose, understand and predict cardiovascular disorders responsible for 30% of deaths worldwide. Computational techniques, and more specifically machine learning techniques and computational modelling are powerful tools for classification, clustering and simulation, and they have recently been applied to address the analysis of medical data, especially ECG data...
January 2018: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/29313142/opportunities-and-challenges-of-large-scale-screening-for-atrial-fibrillation
#5
REVIEW
Matthias Daniel Zink, Nikolaus Marx, Harry J G M Crijns, Ulrich Schotten
Atrial fibrillation (AF) is a common arrhythmia and is highly associated with stroke and cardiovascular morbidity. As many AF episodes remain subclinical (SCAF), large-scale AF screening is considered a desirable approach for the treatment and prevention of cardioembolic stroke. Newly available single-lead ECG devices have provided promising results in the diagnosis of SCAF and treatment by nonvitamin K antagonist drugs appears to be safe and effective. Nevertheless, a further gain in knowledge is needed to clarify the different types of AF...
January 8, 2018: Herzschrittmachertherapie & Elektrophysiologie
https://www.readbyqxmd.com/read/29283067/safety-limits-of-antidepressant-use-plus-combinations-focus-on-cardiovascular-function
#6
Florindo Stella, Julia C Loureiro, Marcos V Pais, Paulo R Canineu, Orestes V Florenza
BACKGROUND: Antidepressants have been widely prescribed for depression, anxiety, sleep disorders, and in the management of behavioural symptoms of adult-old patients. Although generally safe, newer generation antidepressants are not devoid of the risk of inducing clinically relevant adverse events. OBJECTIVES: To investigate the association between newer generation antidepressants and the occurrence of cardiovascular adverse events and electrocardiogram (ECG) abnormalities...
December 27, 2017: Current Drug Metabolism
https://www.readbyqxmd.com/read/29250277/evaluating-the-utility-of-mhealth-ecg-heart-monitoring-for-the-detection-and-management-of-atrial-fibrillation-in-clinical-practice
#7
Kathleen T Hickey, Angelo B Biviano, Hasan Garan, Robert R Sciacca, Teresa Riga, Kate Warren, Ashton P Frulla, Nicole R Hauser, Daniel Y Wang, William Whang
Background: Little attention has focused on the integration of mobile health (mHealth) technology with self-management approaches to improve the detection and management of atrial fibrillation (AF) in clinical practice. Objective: The objective of this study was to investigate the differences between mHealth and usual care over a 6-month follow-up period among patients with a known history of atrial fibrillation. Methods: A pilot cohort from within the larger ongoing randomized trial, iPhone® Helping Evaluate Atrial fibrillation Rhythm through Technology (iHEART), was evaluated to determine differences in detection of AF and atrial flutter (AFL) recurrence rates (following treatment to restore normal rhythm) between patients undergoing daily smartphone ECG monitoring and age and gender matched control patients...
February 2017: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/29237080/cardiopulmonary-coupling-spectrogram-as-an-ambulatory-clinical-biomarker-of-sleep-stability-and-quality-in-health-sleep-apnea-and-insomnia
#8
Robert Joseph Thomas, Christopher Wood, Matt Travis Bianchi
Study Objectives: Ambulatory tracking of sleep and sleep pathology is rapidly increasing with the introduction of wearable devices. The objective of this study was to evaluate a wearable device which used novel computational analysis of the electrocardiogram (ECG), collected over multiple nights, as a method to track the dynamics of sleep quality in health and disease. Methods: This study used the electrocardiogram as a primary signal, a wearable device, the M1, and an analysis of cardiopulmonary coupling to estimate sleep quality...
December 9, 2017: Sleep
https://www.readbyqxmd.com/read/29180267/cardiac-arrest-and-brugada-syndrome-is-drug-induced-type-1-ecg-pattern-always-a-marker-of-low-risk
#9
Pietro Delise, Giuseppe Allocca, Nadir Sitta, Federico Migliore, Federica Dagradi, Carla Spazzolini, Luigi Sciarra, Valeria Carinci, Domenico Corrado, Leonardo Calò, Peter J Schwartz
BACKGROUND: Patients diagnosed as affected by Brugada syndrome (BrS) on the basis of a drug-induced type 1 ECG pattern (type1) are regarded as at low risk for cardiac arrest. We tested whether this assumption matches reality. METHODS: The study population included 26 patients from our group and 217 patients from three studies published between 2002 and 2013, all of them with aborted cardiac arrest (ACA) and in whom a previously unrecognized type1 (spontaneous or drug-induced) was discovered after the event, thus leading to the diagnosis of BrS...
November 16, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/29146296/anomalous-origin-of-coronary-arteries-from-the-wrong-sinus-in-athletes-diagnosis-and-management-strategies
#10
Vincenzo Palmieri, Salvatore Gervasi, Massimiliano Bianco, Roberta Cogliani, Barbara Poscolieri, Francesco Cuccaro, Riccardo Marano, Mario Mazzari, Cristina Basso, Paolo Zeppilli
AIMS: Although anomalous origin of left (AOLCA) and right coronary artery (AORCA) from the wrong sinus may cause sudden death (SD) in athletes, early diagnosis and management of these anomalies are still challenging. We analysed clinical/instrumental profiles of athletes identified with AOLCA/AORCA focusing our attention on diagnosis, management and follow-up. METHODS AND RESULTS: We report 23 athletes (17 males, mean age 27±17yrs.), 6 with AOLCA and 17 with AORCA...
February 1, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29135450/influence-of-acquisition-frame-rate-and-video-compression-techniques-on-pulse-rate-variability-estimation-from-vppg-signal
#11
Luca Cerina, Luca Iozzia, Luca Mainardi
In this paper, common time- and frequency-domain variability indexes obtained by pulse rate variability (PRV) series extracted from video-photoplethysmographic signal (vPPG) were compared with heart rate variability (HRV) parameters calculated from synchronized ECG signals. The dual focus of this study was to analyze the effect of different video acquisition frame-rates starting from 60 frames-per-second (fps) down to 7.5 fps and different video compression techniques using both lossless and lossy codecs on PRV parameters estimation...
November 14, 2017: Biomedizinische Technik. Biomedical Engineering
https://www.readbyqxmd.com/read/29116540/long-term-safety-of-long-acting-octreotide-in-patients-with-diabetic-retinopathy-results-of-pooled-data-from-2-randomized-double-blind-placebo-controlled-phase-3-studies
#12
Rosario Pivonello, Giovanna Muscogiuri, Geoffrey Holder, Michaela Paul, Severine Sarp, Anastasia Lesogor, Pierre Jordaan, Johannes Eisinger, Annamaria Colao
PURPOSE: Octreotide (OCT) has been successfully used for treatment of acromegaly and neuroendocrine tumors for more than 30 years. However, long-term safety of OCT has not been documented in placebo-controlled setting. This present analysis pooled safety data from two similarly-designed, randomized, and placebo-controlled studies to evaluate long-term safety of long-acting OCT (20, 30 mg); targeted post-hoc analyzes focused on cardiac, hepatic, and renal safety. METHODS: Two studies (NCT00131144, NCT001308450) were conducted in patients with diabetic retinopathy (OCT20 = 191, OCT30 = 348, placebo = 347)...
November 7, 2017: Endocrine
https://www.readbyqxmd.com/read/29115010/gender-aspects-on-exercise-induced-ecg-changes-in-relation-to-scintigraphic-evidence-of-myocardial-ischaemia
#13
Shahnaz Akil, Bo Hedén, Olle Pahlm, Marcus Carlsson, Håkan Arheden, Henrik Engblom
BACKGROUND: This retrospective study aimed to determine the diagnostic performance of exercise-induced ST response in relation to findings by myocardial perfusion single photon emission computed tomography (MPS), with focus on gender differences, in patients with suspected or established stable ischemic heart disease. METHODS: MPS findings of 1 021 patients (518 females) were related to the exercise-induced ST response alone (blinded and unblinded to gender) and ST response together with additional exercise stress test (EST) variables (exercise capacity, blood pressure and heart rate response)...
November 8, 2017: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/29097067/contemporary-review-of-left-bundle-branch-block-in-the-failing-heart-pathogenesis-prognosis-and-therapy
#14
REVIEW
Juliana Kanawati, Raymond W Sy
Cardiac resynchronisation therapy (CRT) is a cornerstone in the contemporary management of heart failure. The most effective way of predicting response to this therapy remains electrocardiographic (ECG) criteria of electromechanical dyssynchrony. The left bundle branch block (LBBB) pattern is currently the most robust ECG criterion in predicting improvement in symptoms and reduction in mortality. However, recent studies using three-dimensional (3D) mapping and cardiac magnetic resonance imaging (CMR) have demonstrated heterogeneous left ventricular activation patterns in patients with LBBB...
October 6, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/29040884/heart-rate-variability-feature-selection-in-the-presence-of-sleep-apnea-an-expert-system-for-the-characterization-and-detection-of-the-disorder
#15
Sofía Martín-González, Juan L Navarro-Mesa, Gabriel Juliá-Serdá, Jan F Kraemer, Niels Wessel, Antonio G Ravelo-García
We introduce a sleep apnea characterization and classification approach based on a Heart Rate Variability (HRV) feature selection process, thus focusing on the characterization of the underlying process from a cardiac rate point of view. Therefore, we introduce linear and nonlinear variables, namely Cepstrum Coefficients (CC), Filterbanks (Fbank) and Detrended Fluctuation Analysis (DFA). Logistic Regression, Linear Discriminant Analysis and Quadratic Discriminant Analysis were used for classification purposes...
December 1, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/29035225/a-review-of-automated-methods-for-detection-of-myocardial-ischemia-and-infarction-using-electrocardiogram-and-electronic-health-record
#16
Sardar Ansari, Negar Farzaneh, Marlena Duda, Kelsey Horan, Hedvig B Andersson
There is a growing body of research focusing on automatic detection of ischemia and myocardial infarction (MI) using computer algorithms. In clinical settings, ischemia and MI are diagnosed using ECG recordings as well as medical context including patient symptoms, medical history and risk factors, information that is often stored in the electronic health records. The ECG signal is inspected to identify changes in the morphology such as ST-segment deviation and T wave changes. Some of the proposed methods compute similar features automatically while others use non-conventional features such as wavelet coefficients...
October 16, 2017: IEEE Reviews in Biomedical Engineering
https://www.readbyqxmd.com/read/29019518/prevalence-and-predictive-value-of-electrocardiographic-abnormalities-in-pulmonary-hypertension-evidence-from-the-pan-african-pulmonary-hypertension-cohort-papuco-study
#17
Irina Balieva, Anastase Dzudie, Friedrich Thienemann, Ana O Mocumbi, Kamilu Karaye, Mahmoud U Sani, Okechukwu S Ogah, Adriaan A Voors, Andre Pascal Kengne, Karen Sliwa
BACKGROUND: Pulmonary hypertension (PH) is prevalent in Africa and is still often diagnosed only at an advanced stage, therefore it is associated with poor quality of life and survival rates. In resource-limited settings, we assessed the diagnostic utility of standard 12-lead electrocardiograms (ECG) to detect abnormalities indicating PH. METHODS: Sixty-five patients diagnosed with PH were compared with 285 heart disease-free subjects. The prevalence and diagnostic performance of ECG features indicative of PH and right heart strain were calculated...
October 11, 2017: Cardiovascular Journal of Africa
https://www.readbyqxmd.com/read/28966550/entropy-information-of-cardiorespiratory-dynamics-in-neonates-during-sleep
#18
Maristella Lucchini, Nicolò Pini, William P Fifer, Nina Burtchen, Maria G Signorini
Sleep is a central activity in human adults and characterizes most of the newborn infant life. During sleep, autonomic control acts to modulate heart rate variability (HRV) and respiration. Mechanisms underlying cardiorespiratory interactions in different sleep states have been studied but are not yet fully understood. Signal processing approaches have focused on cardiorespiratory analysis to elucidate this co-regulation. This manuscript proposes to analyze heart rate (HR), respiratory variability and their interrelationship in newborn infants to characterize cardiorespiratory interactions in different sleep states (active vs...
May 2017: Entropy
https://www.readbyqxmd.com/read/28965135/chronic-phase-improvements-in-electrocardiographic-and-echocardiographic-manifestations-of-left-ventricular-hypertrophy-after-alcohol-septal-ablation-for-drug-refractory-hypertrophic-obstructive-cardiomyopathy
#19
Junya Matsuda, Mitsunobu Kitamura, Morimasa Takayama, Yoichi Imori, Junsuke Shibuya, Yoshiaki Kubota, Hideto Sangen, Shunichi Nakamura, Hitoshi Takano, Kuniya Asai, Wataru Shimizu
After alcohol septal ablation (ASA), regression of left ventricular hypertrophy (LVH) has been observed in several studies using echocardiography or cardiac magnetic resonance, and favorable changes of myocardial excitation have been expected. However, no studies have focused on the alteration of electrocardiography (ECG) findings after ASA. Therefore, we evaluated serial changes in ECG parameters during the chronic phase after ASA for drug-refractory hypertrophic obstructive cardiomyopathy (HOCM). From 1998 to 2014, we performed 187 ASA procedures in 157 drug-refractory HOCM patients...
September 30, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28956856/towards-a-continuous-biometric-system-based-on-ecg-signals-acquired-on-the-steering-wheel
#20
João Ribeiro Pinto, Jaime S Cardoso, André Lourenço, Carlos Carreiras
Electrocardiogram signals acquired through a steering wheel could be the key to seamless, highly comfortable, and continuous human recognition in driving settings. This paper focuses on the enhancement of the unprecedented lesser quality of such signals, through the combination of Savitzky-Golay and moving average filters, followed by outlier detection and removal based on normalised cross-correlation and clustering, which was able to render ensemble heartbeats of significantly higher quality. Discrete Cosine Transform (DCT) and Haar transform features were extracted and fed to decision methods based on Support Vector Machines (SVM), k-Nearest Neighbours (kNN), Multilayer Perceptrons (MLP), and Gaussian Mixture Models - Universal Background Models (GMM-UBM) classifiers, for both identification and authentication tasks...
September 28, 2017: Sensors
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