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Cardiac Monitoring

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https://www.readbyqxmd.com/read/28241134/risk-of-ischemic-stroke-and-transient-ischemic-attack-is-increased-up-to-90-days-after-non-carotid-and-non-cardiac-surgery
#1
Armin J Grau, Martin Eicke, Christoph Burmeister, Roland Hardt, Eberhard Schmitt, Sieghard Dienlin
BACKGROUND: The risk of stroke after cardiac and carotid surgery is well established. In contrast, stroke risk in association with non-cardiac and non-carotid surgery and its time course are insufficiently known. We investigated the prevalence of recent and planned surgery among patients with stroke and transient ischemic attack (TIA), time dependency of stroke risk, stroke etiology, and interruption of antithrombotic medication in association with surgery. METHODS: Data on type and date of surgery and similar interventions within the last year or planned for the next 2 weeks were anonymously collected together with demographic data, vascular risk factors, stroke severity, handicap before stroke and stroke etiology within a state-wide, mandatory, hospital-based acute stroke care quality monitoring project (Rhineland-Palatinate, Germany) for 1 year (2010)...
February 28, 2017: Cerebrovascular Diseases
https://www.readbyqxmd.com/read/28241122/numerical-investigation-of-vasospasm-detection-by-extracranial-blood-velocity-ratios
#2
Jaiyoung Ryu, Nerissa Ko, Xiao Hu, Shawn C Shadden
BACKGROUND: Early diagnosis of vasospasm following subarachnoid hemorrhage can prevent cerebral ischemia and improve neurological outcomes. This study numerically evaluates the relevance of extracranial blood velocity indices to detect vasospasm. METHODS: A numerical model of cerebral blood flow was used to evaluate the hemodynamics associated with anterior and posterior vasospasm under normal and impaired cerebral autoregulation conditions. Extracranial blood velocities at the carotid and vertebral arteries and their ratios between ipsilateral and contralateral, anterior and posterior, and downstream and upstream arteries were monitored during vasospasm progression...
February 28, 2017: Cerebrovascular Diseases
https://www.readbyqxmd.com/read/28240694/improving-clinical-outcomes-for-patients-with-class-iii-heart-failure
#3
Melissa Shapiro, Angela Macci Bires, Kristen Waterstram-Rich, Thomas W Cline
Heart failure (HF) is a serious medical problem in the United States and is placing a financial strain on the health care system. It is the leading cause of mortality and as the overall incidence continues to increase, so does the economic impact on the health care system. Innovative treatment options, in the form of disease management programs and implantable cardiac devices, such as the CorVue capable implantable cardioverter defibrillator (ICD) pacemaker, offer the promise of an enhanced quality of life and reduced mortality...
April 2017: Critical Care Nursing Quarterly
https://www.readbyqxmd.com/read/28240317/non-invasive-mri-biomarkers-for-the-early-assessment-of-iron-overload-in-a-humanized-mouse-model-of-%C3%AE-thalassemia
#4
Laurence H Jackson, Evangelia Vlachodimitropoulou, Panicos Shangaris, Thomas A Roberts, Thomas M Ryan, Adrienne E Campbell-Washburn, Anna L David, John B Porter, Mark F Lythgoe, Daniel J Stuckey
β-thalassemia (βT) is a genetic blood disorder causing profound and life threatening anemia. Current clinical management of βT is a lifelong dependence on regular blood transfusions, a consequence of which is systemic iron overload leading to acute heart failure. Recent developments in gene and chelation therapy give hope of better prognosis for patients, but successful translation to clinical practice is hindered by the lack of thorough preclinical testing using representative animal models and clinically relevant quantitative biomarkers...
February 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28239802/anesthetic-management-of-patients-with-dilated-cardiomyopathy-for-noncardiac-surgery
#5
C-Q Chen, X Wang, J Zhang, S-M Zhu
Anesthetic management of patients with dilated cardiomyopathy (DCM) is a challenge to the anesthesiologist, due to poor left systolic function, ventricular enlargement, risk of malignant arrhythmias and sudden cardiac death. Therefore, preoperative assessment and appropriate anesthetic management are important in patients with DCM. This review describes the preoperative evaluation and anesthesia considerations of patients with DCM undergoing non-cardiac surgery. Patient pathophysiology and clinical status, such as ventricular function, degree of myocardial fibrosis, resting heart rate and high-sensitivity C-reactive protein can affect survival rates...
February 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28239760/incidence-and-outcome-of-acute-cardiorenal-syndrome-in-hospitalized-children
#6
Vivek Athwani, Maneesha Bhargava, Rahul Chanchlani, Amar Jeet Mehta
OBJECTIVES: To determine the incidence, etiology and outcome of Cardiorenal syndrome (CRS) in hospitalized children. METHODS: A prospective cohort study was carried out in 242 children between 6 mo to 18 y of age hospitalized with primary cardiac, renal or any systemic disorder at a tertiary care center in India. The primary outcome was the development of CRS. Univariate and multivariate logistic regression analysis were performed to determine the risk of mortality secondary to CRS...
February 27, 2017: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/28239054/critical-care-management-focused-on-optimizing-brain-function-after-cardiac-arrest
#7
Ryuta Nakashima, Toru Hifumi, Kenya Kawakita, Tomoya Okazaki, Satoshi Egawa, Akihiko Inoue, Ryutaro Seo, Nobuhiro Inagaki, Yasuhiro Kuroda
The discussion of neurocritical care management in post-cardiac arrest syndrome (PCAS) has generally focused on target values used for targeted temperature management (TTM). There has been less attention paid to target values for systemic and cerebral parameters to minimize secondary brain damage in PCAS. And the neurologic indications for TTM to produce a favorable neurologic outcome remain to be determined. Critical care management of PCAS patients is fundamental and essential for both cardiologists and general intensivists to improve neurologic outcome, because definitive therapy of PCAS includes both special management of the cause of cardiac arrest, such as coronary intervention to ischemic heart disease, and intensive management of the results of cardiac arrest, such as ventilation strategies to avoid brain ischemia...
February 24, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28238244/nt-probnp-as-a-potential-marker-of-left-atrial-dysfunction-in-rheumatic-mitral-stenosis-correlation-with-left-atrial-function-after-pbmv
#8
Rashi Khare, Sudhanshu Dwivedi
BACKGROUND: Rheumatic heart disease is a common reason for cardiovascular morbidity and mortality. Plasma levels of N-terminal pro-brain natriuretic peptide (NT-proBNP) are known to rise in patients with MS, but the role of this compound as a non-invasive marker of left atrial (LA) dysfunction is yet to be established. The study aim was to correlate levels of NT-proBNP in patients with rheumatic mitral stenosis (MS), with echocardiographic parameters of LA function including tissue Doppler-derived strain/strain rate (S/Sr) indices, hemodynamic parameters of LA function, before and after percutaneous balloon mitral valvotomy (PBMV) for a follow up of one year...
September 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28238239/ablation-of-macro-re-entrant-atrial-arrhythmia-late-after-surgical-aortic-valve-replacement
#9
Michał Orczykowski, Paweł Derejko, Piotr Urbanek, Robert Bodalski, Katarzyna Kodziszewska, Radosław Sierpiński, Rafał Baranowski, Maria Bilińska, Łukasz Szumowski
BACKGROUND: Re-entrant atrial arrhythmias are common in patients after cardiac surgery. To date, however, no studies have reported the safety and efficacy of radiofrequency (RF) ablation of macro-re-entrant atrial arrhythmias in a unique, homogeneous group of patients after surgical replacement of the aortic valve and single right atriotomy. METHODS: Among over 4,000 RF catheter ablations performed at the authors' center between 2008 and 2014, eight patients (seven males, one female; mean age 55...
September 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28237125/biomarkers-of-atrial-cardiopathy-and-atrial-fibrillation-detection-on-mobile-outpatient-continuous-telemetry-after-embolic-stroke-of-undetermined-source
#10
Denise Sebasigari, Alexander Merkler, Yang Guo, Gino Gialdini, Benjamin Kummer, Morgan Hemendinger, Christopher Song, Antony Chu, Shawna Cutting, Brian Silver, Mitchell S V Elkind, Hooman Kamel, Karen L Furie, Shadi Yaghi
BACKGROUND: Biomarkers of atrial dysfunction or "cardiopathy" are associated with embolic stroke risk. However, it is unclear if this risk is mediated by undiagnosed paroxysmal atrial fibrillation or flutter (AF). We aim to determine whether atrial cardiopathy biomarkers predict AF on continuous heart-rhythm monitoring after embolic stroke of undetermined source (ESUS). METHODS: This was a single-center retrospective study including all patients with ESUS undergoing 30 days of ambulatory heart-rhythm monitoring to look for AF between January 1, 2013 and December 31, 2015...
February 22, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28236336/cardiac-mr-elastography-for-quantitative-assessment-of-elevated-myocardial-stiffness-in-cardiac-amyloidosis
#11
Arvin Arani, Shivaram P Arunachalam, Ian C Y Chang, Francis Baffour, Phillip J Rossman, Kevin J Glaser, Joshua D Trzasko, Kiaran P McGee, Armando Manduca, Martha Grogan, Angela Dispenzieri, Richard L Ehman, Philip A Araoz
PURPOSE: To evaluate if cardiac magnetic resonance elastography (MRE) can measure increased stiffness in patients with cardiac amyloidosis. Myocardial tissue stiffness plays an important role in cardiac function. A noninvasive quantitative imaging technique capable of measuring myocardial stiffness could aid in disease diagnosis, therapy monitoring, and disease prognostic strategies. We recently developed a high-frequency cardiac MRE technique capable of making noninvasive stiffness measurements...
February 25, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28236162/regression-and-complications-of-z-score-based-giant-aneurysms-in-a-dutch-cohort-of-kawasaki-disease-patients
#12
S M Dietz, I M Kuipers, J C D Koole, J M P J Breur, Z Fejzic, S Frerich, M Dalinghaus, A A W Roest, B A Hutten, T W Kuijpers
: Kawasaki disease (KD) is a pediatric vasculitis. Its main complication is the development of coronary artery aneurysms (CAA), with giant CAA at the end of the spectrum. We evaluated regression and event-free rates in a non-Asian cohort of patients with giant CAA using the current z-scores adjusted for body surface area instead of absolute diameters. KD patients with giant CAA (z-score ≥10) visiting our outpatient clinic between January 1999 and September 2015 were included. Patient characteristics and clinical details were extracted from medical records...
February 24, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28236021/high-incidence-of-cardiac-dysfunction-and-response-to-antiviral-treatment-in-patients-with-chronic-hepatitis-c-virus-infection
#13
Wolfgang Poller, Ziya Kaya, Marion Muche, Mario Kasner, Carsten Skurk, Kai Kappert, Rudolf Tauber, Felicitas Escher, Heinz-Peter Schultheiss, Hans-Jörg Epple, Ulf Landmesser
AIMS: Hepatitis C virus (HCV) has been associated with cardiomyopathies. Former anti-HCV therapies employing interferon could have serious side effects in patients with advanced heart failure since interferon may adversely impact upon cardiac function. We, therefore, examined whether the novel, interferon-free and highly virus-selective anti-HCV combination therapy might be applicable even in advanced or end-stage heart failure. METHODS AND RESULTS: In a retrospective series of HCV-positive patients admitted to our institution with suspected cardiac disease, coronary, valvular or hypertensive heart disease was diagnosed in 70/146 (47...
February 24, 2017: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/28227895/a-fabric-wrist-patch-sensor-for-continuous-and-comprehensive-monitoring-of-the-cardiovascular-system
#14
Kwonjoon Lee, Kiseok Song, Taehwan Roh, Hoi-Jun Yoo, Kwonjoon Lee, Kiseok Song, Taehwan Roh, Hoi-Jun Yoo, Kwonjoon Lee, Kiseok Song, Taehwan Roh, Hoi-Jun Yoo
The wrist patch-type ECG/APW sensor system is proposed for continuous and comprehensive monitoring of the patient's cardiovascular system. The wrist patch-type ECG/APW sensor system is consists of ECG/APW sensor, ECG/APW electrodes, and base station for real-time monitoring of the patient's status. The ECG/APW sensor and electrodes are composed of wrist patch, bandage-type ECG electrode and fabric APW electrode, respectively so that the patient's cardiovascular system can be continuously monitored in daily life with free hand-movement...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227820/evaluating-respiratory-muscle-activity-using-a-wireless-sensor-platform
#15
Luis Estrada, Abel Torres, Leonardo Sarlabous, Raimon Jane, Luis Estrada, Abel Torres, Leonardo Sarlabous, Raimon Jane, Raimon Jane, Luis Estrada, Leonardo Sarlabous, Abel Torres
Wireless sensors are an emerging technology that allows to assist physicians in the monitoring of patients health status. This approach can be used for the non-invasive recording of the electrical respiratory muscle activity of the diaphragm (EMGdi). In this work, we acquired the EMGdi signal of a healthy subject performing an inspiratory load test. To this end, the EMGdi activity was captured from a single channel of electromyography using a wireless platform which was compared with the EMGdi and the inspiratory mouth pressure (Pmouth) recorded with a conventional lab equipment...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227618/non-invasive-cardiac-output-monitoring-in-pharmacology-a-plethysmographie-solution-in-rats
#16
Timothe Flenet, Julie Fontecave-Jallon, Stephane Tanguy, Francois Boucher, Pierre Baconnier, Pierre-Yves Gumery, Timothe Flenet, Julie Fontecave-Jallon, Stephane Tanguy, Francois Boucher, Pierre Baconnier, Pierre-Yves Gumery, Pierre-Yves Gumery, Pierre Baconnier, Stephane Tanguy, Julie Fontecave-Jallon, Francois Boucher, Timothe Flenet
Cardiovascular monitoring is of great importance in pharmacology but there is a lack of convenient non-invasive alternatives. Hence, we aim to evaluate the relevance of inductive plethysmography (IP) in preclinical cardiac studies. An IP system was specifically designed for rat. Its evaluation carried out using a mechanical test bench has shown appropriate instrumental performances for cardiac monitoring in rats. Measurements were also performed during a volume overload hemodynamic challenge in vivo in rats...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227605/an-accelerometer-based-system-to-measure-myocardial-performance-index-during-stress-testing
#17
Anh Dinh, Francis M Bui, Tam Nguyen, Anh Dinh, Francis M Bui, Tam Nguyen, Tam Nguyen, Anh Dinh, Francis M Bui
Stress testing is used to measure the performance of the heart in an elevated stress state, in order to monitor or diagnose certain heart problems. Many measurements can be used to determine the performance of the heart, with the Tei index being the measurement of interest in this work. The Tei index has been used as a reliable method to evaluate systolic and diastolic performance, as it overcomes some limitations of the classical echocardiographic indices. It is calculated based on the time intervals derived from echocardiography...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227580/non-invasive-bcg-monitoring-for-non-traditional-settings
#18
Esteban J Pino, Constanza Larsen, Javier Chavez, Pablo Aqueveque, Esteban J Pino, Constanza Larsen, Javier Chavez, Pablo Aqueveque, Javier Chavez, Constanza Larsen, Pablo Aqueveque, Esteban J Pino
This paper presents the results from actual measurements of cardiac activity acquired through the use of noninvasive sensors to detect Ballistocardiogram (BCG). The results show that it is feasible to unobtrusively monitor heart rate in non-standard settings such as waiting rooms or at school using simple chairs fitted with capacitive sensors. The selected sensors, based on electromechanical principles, are able to measure BCG from a variety of subjects. We present the results for 114 participants from homes, school and a hospital waiting room, adding up over 815 minutes of data...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227573/video-monitoring-of-oxygen-saturation-during-controlled-episodes-of-acute-hypoxia
#19
Paul S Addison, David M H Foo, Dominique Jacquel, Ulf Borg, Paul S Addison, David M H Foo, Dominique Jacquel, Ulf Borg, Ulf Borg, Dominique Jacquel, Paul S Addison, David M H Foo
A method for extracting video photoplethysmographic information from an RGB video stream is tested on data acquired during a porcine model of acute hypoxia. Cardiac pulsatile information was extracted from the acquired signals and processed to determine a continuously reported oxygen saturation (SvidO2). A high degree of correlation was found to exist between the video and a reference from a pulse oximeter. The calculated mean bias and accuracy across all eight desaturation episodes were -0.03% (range: -0.21% to 0...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227487/e-health-prototype-system-for-cardiac-telemonitoring
#20
Laura Juliana Vargas Escobar, Sergio Alexander Salinas, Laura Juliana Vargas Escobar, Sergio Alexander Salinas, Sergio Alexander Salinas, Laura Juliana Vargas Escobar
This paper presents the approach of an e-health system for cardiac telemonitoring which uses the development board LinkIt ONE as a monitoring system. Such board was adapted to measure the cardiac pulse, analyze it and determine whether a person is having a cardiac arrhythmia or not. When an arrhythmia appears, the prototype activates an alarm in order to report the patient's condition and its location to a caregiver or a close healthcare center. The data of the cardiac pulse is originated in an e-health sensor platform connected to an Arduino...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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