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https://www.readbyqxmd.com/read/30425114/randomised-study-comparing-heart-rate-measurement-in-newly-born-infants-using-a-monitor-incorporating-electrocardiogram-and-pulse-oximeter-versus-pulse-oximeter-alone
#1
Madeleine C Murphy, Laura De Angelis, Lisa K McCarthy, Colm Patrick Finbarr O'Donnell
AIM: To determine whether IntelliVue (ECG plus Masimo pulse oximeter (PO)) measures heart rate (HR) in low-risk newborns more quickly than Nellcor PO (PO alone). METHODS: Unmasked parallel group randomised (1:1) study. RESULTS: We studied 100 infants, 47 randomised to IntelliVue, 53 to Nellcor. Time to first HR was shorter with IntelliVue ECG than Nellcor (median (IQR) 24 (19, 39) vs 48 (36, 69) s, p<0.001). There was no difference in time to display both HR and SpO2 (52 (47, 76) vs 48 (36, 69) s, p=0...
November 13, 2018: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/30385423/study-of-the-accumulation-and-distribution-of-arsenic-species-and-association-with-arsenic-toxicity-in-rats-after-30-days-of-oral-realgar-administration
#2
Yan Yi, Shuang-Rong Gao, Jing Xia, Chun-Ying Li, Yong Zhao, Yu-Shi Zhang, Ai-Hua Liang, Shen-Ji
ETHNOPHARMACOLOGICAL RELEVANCE: Realgar (As4 S4 ) has been traditionally incorporated as a chief ingredient in traditional Chinese medicine formulations used to treat inflammation, poisoning, cancer, convulsion, and parasites. However, because of the toxicity of arsenic (As), the safety of realgar has been questioned. AIM OF THE STUDY: Because the toxicity and efficacy of As are closely related to its chemical species, we conducted examinations of As species accumulation and distribution in the rat body after one-time and 30-day realgar administration and then elucidated the probable roles of different As species in the short-term toxicity of realgar...
October 29, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/30212343/comparison-of-a-smartphone-based-electrocardiogram-device-with-a-standard-six-lead-electrocardiogram-in-the-atlantic-bottlenose-dolphin-tursiops-truncatus
#3
Taylor J Yaw, Marc S Kraus, Allison Ginsburg, Leigh A Clayton, Catherine A Hadfield, Anna R Gelzer
A bipolar, single-lead electrocardiogram (ECG) device is capable of recording ECGs with an integrated smartphone application. To determine the utility of this device, phone-based ECGs (pECG) were compared with standard six-lead ECGs (sECG) in four female Atlantic bottlenose dolphins ( Tursiops truncatus) at the National Aquarium. Study animals were trained to haul out onto a dry deck in ventral recumbency and allow simultaneous 30-sec ECG acquisition using the two devices. The pECG device was held against the thoracic wall caudal to the left axilla...
September 2018: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/29993585/noncontact-wearable-wireless-ecg-systems-for-long-term-monitoring
#4
Sumit Majumder, Leon Chen, Ognian Marinov, Chih-Hung Chen, Tapas Mondal, M Jamal Deen
Electrocardiography (ECG) is the most common and extensively used vital sign monitoring method in modern healthcare systems. Different designs of ambulatory ECG systems were developed as alternatives to the commonly used 12-lead clinical ECG systems. These designs primarily focus on portability and user convenience, while maintaining signal integrity and lowering power consumption. Here, a wireless ECG monitoring system is developed using flexible and dry capacitive electrodes for long-term monitoring of cardiovascular health...
2018: IEEE Reviews in Biomedical Engineering
https://www.readbyqxmd.com/read/29990025/full-impedance-cardiography-measurement-device-using-raspberry-pi3-and-system-on-chip-biomedical-instrumentation-solutions
#5
Abdelakram Hafid, Sara Benouar, Malika Kedir-Talha, Farhad Abtahi, Mokhtar Attari, Fernando Seoane
Impedance Cardiography (ICG) is a non-invasive method for monitoring cardiac dynamics using Electrical Bioimpedance (EBI) measurements. Since its appearance more than 40 years ago, ICG has been used for assessing hemodynamic parameters. This paper present a measurement system based on two System on Chip (SoC) solutions and Raspberry PI, implementing both a full 3-lead ECG recorder and an impedance cardiographer, for educational and research development purposes. Raspberry PI is a platform supporting Do-It-Yourself project and education applications across the world...
December 15, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/29895572/pulseless-electrical-activity-a-misdiagnosed-entity-during-asphyxia-in-newborn-infants
#6
Sparsh Patel, Po-Yin Cheung, Anne Lee Solevåg, Keith J Barrington, C Omar Farouk Kamlin, Peter G Davis, Georg M Schmölzer
BACKGROUND: The 2015 neonatal resuscitation guidelines added ECG as a recommended method of assessment of an infant's heart rate (HR) when determining the need for resuscitation at birth. However, a recent case report raised concerns about this technique in the delivery room. OBJECTIVES: To compare accuracy of ECG with auscultation to assess asystole in asphyxiated piglets. METHODS: Neonatal piglets had the right common carotid artery exposed and enclosed with a real-time ultrasonic flow probe and HR was continuously measured and recorded using ECG...
June 12, 2018: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/29866980/medical-device-integrated-vital-signs-monitoring-application-with-real-time-clinical-decision-support
#7
Aasia Moqeem, Mirza Baig, Hamid Gholamhosseini, Farhaan Mirza, Maria Lindén
This research involves the design and development of a novel Android smartphone application for real-time vital signs monitoring and decision support. The proposed application integrates market available, wireless and Bluetooth connected medical devices for collecting vital signs. The medical device data collected by the app includes heart rate, oxygen saturation and electrocardiograph (ECG). The collated data is streamed/displayed on the smartphone in real-time. This application was designed by adopting six screens approach (6S) mobile development framework and focused on user-centered approach and considered clinicians-as-a-user...
2018: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/29862739/-design-and-implementation-of-the-wireless-ecg-monitor-based-on-ad8232-and-cc2530
#8
Guojing Wang, Weidong Wang, Lei Yu
Based on the heart rate monitor front end AD8232 chips and Zigbee system solutions CC2530 single chip, the wireless ECG monitor has been realized in order to implement the acquisition, processing and wireless transmission of electrocardiogram signal. Meanwhile, the real-time heart rate has been calculated and wirelessly transmitted. The wireless ECG monitor is characterized by low power consumption, small size and simple operation. It can be seen from the experimental results that the wireless ECG monitor designed in this paper can successfully obtain favorable ECG data and real-time heart rate data and display it...
January 30, 2018: Zhongguo Yi Liao Qi Xie za Zhi, Chinese Journal of Medical Instrumentation
https://www.readbyqxmd.com/read/29862723/-concept-and-implementation-of-ecg-monitoring-for-whole-course-of-pre-hospital-emergency
#9
Bo Shi, Li Zhang, Young Tsau, Guiquan Zou, Huayong Liu, Lei Li, Yan Zhang
In pre-hospital emergency, it's essential to immediate recognize cardiac arrest, and use real-time ECG monitoring for patients. We propose a concept of whole-course ECG monitoring and implementation in pre-hospital emergency, and design a portable pre-hospital ECG monitor (Pre-ECG). There are two working modes in Pre-ECG, i.e., rapid detection and continuous monitoring modes. In rapid detection mode, ECG waves and heart rate of patients can be displayed in a few seconds by using metal electrodes, which helps to understand the status of patients' cardiac electrical activity...
September 30, 2017: Zhongguo Yi Liao Qi Xie za Zhi, Chinese Journal of Medical Instrumentation
https://www.readbyqxmd.com/read/29805457/effect-of-time-of-ecg-administration-on-the-fate-of-ovarian-follicle-in-holstein-heifers
#10
A Hosseini, A Niasari-Naslaji, M Vojgani, F Gharagozloo
The objective of this study was to investigate the effect of equine chorionic gonadotropin (eCG) on ovarian follicles at three stages of development (emergence, dominance and early static phases) during the first follicular wave (FFW) in Holstein heifers. Heifers (n=20) were randomly assigned into four experimental groups (n=5 in each group). Heifers received eCG (500 IU; Folligon® ; Intervet, Holland; i.m) a) on the day of follicle emergence (day of ovulation; group 1), b) on the dominant phase (dominant follicle (DF): the first day in which follicle was observed at ≥10 mm; group 2, and c) on the early static phase (group 3) of the FFW...
2018: Iranian Journal of Veterinary Research
https://www.readbyqxmd.com/read/29779679/loperamide-abuse-cardiotoxicity-should-loperamide-still-be-an-over-the-counter-medication
#11
Amr Idris, Danielle C Mihora, Kenji Kaye
Loperamide is an over-the-counter anti-diarrheal medication that is inexpensive, easily accessible, and widely used. It is generally thought to be safe and effective without the potential for abuse. However, recent discovery of its ability to treat opioid withdrawal symptoms at high doses has led to not only its abuse, but also the need to recognize its cardiotoxicity due to the ability to prolong the QTc interval. We report a case of a 33 year old female with a history of opioid dependence who presented to the emergency department with acute onset shortness of breath and generalized weakness who was subsequently found to be in ventricular tachycardia...
September 2018: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29761985/-design-and-implementation-of-hand-held-electrocardiogram-monitor
#12
Xiaowen Xu, Tianhan Li
A hand-held electrocardiogram (ECG) monitor with capacitive coupling is designed in this study that can rapidly detect ECG signals through clothing. This new device improves many deficiencies of the traditional ECG monitor, such as infection due to direct skin contacting, inconvenience, and time-consuming. In specificity, the hand-held ECG monitor consists of two parts, a sensor and an embedded terminal. ECG signals are initially detected by a sensing electrode placed on the chest through clothing, then treated by single ended differential amplification, filtering and master amplification, and later processed through A/D conversion and ECG signal transmission by CC2540 module...
December 1, 2017: Sheng Wu Yi Xue Gong Cheng Xue za Zhi, Journal of Biomedical Engineering, Shengwu Yixue Gongchengxue Zazhi
https://www.readbyqxmd.com/read/29744253/an-unusual-cause-of-electrocardiographic-artefact-a-patient-s-warming-blanket
#13
Gaurav Misra, Sanjay Dhiraaj, Aditya Kapoor, Puneet Goyal
In electrocardiography, an electrocardiographic (ECG) artefact is used to indicate a misleading or confusing alteration in data or observation not arising from the heart. Although technological advancements have produced monitors that may provide accurate data and reliable heart rate alarms, interferences of the displayed electrocardiogram such as (but not limited to) electrical interference by outside sources, electrical noise from elsewhere in the body, poor contact and machine malfunction continue to occur...
April 2018: Turkish Journal of Anaesthesiology and Reanimation
https://www.readbyqxmd.com/read/29520908/electrocardiogram-failure-in-the-operating-room-bench-testing-to-prevent-bed-side-disaster
#14
B Cowie, L Baker, B Shoghi, M Worner, D Scott
Electrocardiogram (ECG) false alarms are common in electrically-hostile peri-operative environments. Newer integrated monitoring, with sophisticated hardware and software, has the potential to minimise artefacts. However, monitoring issues continue to occur, with the potential for critical incidents and unnecessary and harmful interventions. We describe the root cause analysis of a series of apparent ECG flatline asystolic events that appeared in the operating room shortly after the introduction of new intra-operative monitoring systems...
June 2018: Anaesthesia
https://www.readbyqxmd.com/read/29204376/mobile-cardiac-health-care-monitoring-and-notification-with-real-time-tachycardia-and-bradycardia-arrhythmia-detection
#15
Mina Golzar, Faranak Fotouhi-Ghazvini, Hossein Rabbani, Fahimeh Sadat Zakeri
Background: The increasing trend of heart disease has turned the attention of researchers toward the use of portable connected technologies. The necessity of continuous special care for cardiovascular patients is an inevitable fact. Methods: In this research, a new wireless electrocardiographic (ECG) signal-monitoring system based on smartphone is presented. This system has two main sections. The first section consists of a sensor which receives ECG signals via an amplifier, then filters and digitizes the signal, and prepares it to be transmitted...
October 2017: Journal of Medical Signals and Sensors
https://www.readbyqxmd.com/read/29110883/linear-and-nonlinear-parameters-of-heart-rate-variability-in-ischemic-stroke-patients
#16
V Constantinescu, D Matei, V Costache, D Cuciureanu, C Arsenescu-Georgescu
INTRODUCTION: Cardiovascular system presents cortical modulation. Post-stroke outcome can be highly influenced by autonomic nervous system disruption. Heart rate variability (HRV) analysis is a simple non-invasive method to assess sympatho-vagal balance. OBJECTIVES: The purpose of this study was to investigate cardiac autonomic activity in ischemic stroke patients and to asses HRV nonlinear parameters beside linear ones. METHODS: We analyzed HRV parameters in 15 right and 15 left middle cerebral artery ischemic stroke patients, in rest condition and during challenge (standing and deep breathing)...
March 2018: Neurologia i Neurochirurgia Polska
https://www.readbyqxmd.com/read/28659193/feasibility-of-a-prototype-newborn-resuscitation-monitor-to-study-transition-at-birth-measuring-heart-rate-and-ventilator-parameters-an-animal-experimental-study
#17
Jørgen E Linde, Joar Eilevstjønn, Knut Øymar, Hege L Ersdal
BACKGROUND: Every year, an estimated 10 million babies are born, non-breathing and in need of resuscitation. Advances in management have been made over the past decades, however, approximately 700.000 yearly deaths result from this global problem. A prototype newborn resuscitation monitor (NRM) (Laerdal Global Health, Stavanger, Norway) has been developed with the purpose of studying newborn resuscitation. The monitor has the ability to continuously display HR using dry electrode ECG technology, to measure tidal volume, pressure and end tidal CO2 , and to store the results for later analysis...
June 28, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28644794/electrocardiogram-signal-quality-assessment-based-on-structural-image-similarity-metric
#18
Yalda Shahriari, Richard Fidler, Michele M Pelter, Yong Bai, Andrea Villaroman, Xiao Hu
OBJECTIVE: We developed an image-based electrocardiographic (ECG) quality assessment technique that mimics how clinicians annotate ECG signal quality. METHODS: We adopted the structural similarity measure (SSIM) to compare images of two ECG records that are obtained from displaying ECGs in a standard scale. Then, a subset of representative ECG images from the training set was selected as templates through a clustering method. SSIM between each image and all the templates were used as the feature vector for the linear discriminant analysis classifier...
April 2018: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28643129/magnetohydrodynamic-voltage-recorder-for-comparing-peripheral-blood-flow
#19
Kevin J Wu, T Stan Gregory, Michael C Lastinger, Jonathan R Murrow, Zion Tsz Ho Tse
Blood flow is a clinical metric for monitoring of cardiovascular diseases but current measurements methods are costly or uncomfortable for patients. It was shown that the interaction of the magnetic field (B 0 ) during MRI and blood flow in the body, through the magnetohydrodynamic (MHD) effect, produce voltages (V MHD ) observable through intra-MRI electrocardiography (ECG), which are correlated with regional blood flow. This study shows the reproducibility of V MHD outside the MRI and its application in a portable flow monitoring device...
October 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/27879618/the-value-of-detecting-asymptomatic-signs-of-myocardial-ischemia-in-patients-with-coronary-artery-disease-in-outpatient-cardiac-rehabilitation
#20
Patricia Lounsbury, Ahmed S Elokda, Jennifer M Bunning, Ross Arena, Ellen E I Gordon
BACKGROUND: Electrocardiographic (ECG) monitored outpatient cardiac rehabilitation (OP-CR) is routinely performed following a variety of cardiovascular procedures and conditions. OBJECTIVE: The aim of this study is to determine if diagnostic-quality ECG monitoring in patients with coronary artery disease (CAD) during OP-CR is useful in identifying asymptomatic myocardial ischemia, resulting in change(s) in care or medical management. METHODS: A retrospective analysis of ECG monitoring was done on all OP-CR patients diagnosed with CAD (n = 1213) from January 2000 through June 2013...
May 2017: Journal of Cardiovascular Nursing
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