keyword
MENU ▼
Read by QxMD icon Read
search

Arrhythmias

keyword
https://www.readbyqxmd.com/read/29677053/safety-profile-of-baroreflex-activation-therapy-neo-in-patients-with-resistant-hypertension
#1
Manuel Wallbach, Enrico Böhning, Luca-Yves Lehnig, Charlotte Schroer, Gerhard Anton Müller, Rolf Wachter, Stephan Lüders, Dieter Zenker, Michael Johann Koziolek
OBJECTIVE: Unlike safety data of baroreflex activation therapy device (Rheos), only few data of the currently used second device (Barostim neo) are available and little is reported about common side effects. METHODS: We prospectively analyzed patients with resistant hypertension treated with Barostim neo. A standardized interview regarding side effects of the therapy was performed in routine follow-up visits after device implantation in 42 patients to determine adverse events staged into three degrees...
April 19, 2018: Journal of Hypertension
https://www.readbyqxmd.com/read/29675598/design-of-a-biorthogonal-wavelet-transform-based-r-peak-detection-and-data-compression-scheme-for-implantable-cardiac-pacemaker-systems
#2
Ashish Kumar, Manjeet Kumar, Rama Komaragiri
Bradycardia can be modulated using the cardiac pacemaker, an implantable medical device which sets and balances the patient's cardiac health. The device has been widely used to detect and monitor the patient's heart rate. The data collected hence has the highest authenticity assurance and is convenient for further electric stimulation. In the pacemaker, ECG detector is one of the most important element. The device is available in its new digital form, which is more efficient and accurate in performance with the added advantage of economical power consumption platform...
April 19, 2018: Journal of Medical Systems
https://www.readbyqxmd.com/read/29675595/involvement-of-cytosolic-and-mitochondrial-iron-in-iron-overload-cardiomyopathy-an-update
#3
REVIEW
Richard Gordan, Suwakon Wongjaikam, Judith K Gwathmey, Nipon Chattipakorn, Siriporn C Chattipakorn, Lai-Hua Xie
Iron overload cardiomyopathy (IOC) is a major cause of death in patients with diseases associated with chronic anemia such as thalassemia or sickle cell disease after chronic blood transfusions. Associated with iron overload conditions, there is excess free iron that enters cardiomyocytes through both L- and T-type calcium channels thereby resulting in increased reactive oxygen species being generated via Haber-Weiss and Fenton reactions. It is thought that an increase in reactive oxygen species contributes to high morbidity and mortality rates...
April 19, 2018: Heart Failure Reviews
https://www.readbyqxmd.com/read/29675061/comorbidities-with-non-small-cell-lung-cancer-is-there-an-interdisciplinary-consensus-needed-to-qualify-patients-for-surgical-treatment
#4
Marta Lembicz, Piotr Gabryel, Beata Brajer-Luftmann, Wojciech Dyszkiewicz, Halina Batura-Gabryel
INTRODUCTION: Radical surgical treatment is the preferred action for patients with early-stage non-small cell lung cancer (NSCLC). Qualification for surgical treatment should consider a risk associated with the effect of comorbidities on the general condition of the patient. The aim of this article was an attempt to identify the risk factors for postoperative complications in patients treated for NSCLC, with a special focus on the coexisting diseases. METHODS: A total of 400 patients with NSCLC were included in this retrospective study...
April 2018: Annals of Thoracic Medicine
https://www.readbyqxmd.com/read/29673659/effect-of-epidural-anesthesia-in-labor-pregnancy-with-cardiovascular-disease
#5
Hiroaki Tanaka, Chizuko Kamiya, Shinji Katsuragi, Kayo Tanaka, Jun Yoshimatsu, Tomoaki Ikeda
OBJECTIVE: We studied the effect and safety of epidural anesthesia during labor in pregnant women with cardiovascular disease. MATERIALS AND METHODS: In the pregnant women with cardiovascular disease, we compared maternal outcome and suppressive effect on blood pressure retrospectively between the epidural group (anesthetized epidurally during labor) and the no-epidural group (not anesthetized epidurally during labor). RESULTS: A total of 277 patients were included in the analyses...
April 2018: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29673171/litenet-lightweight-neural-network-for-detecting-arrhythmias-at-resource-constrained-mobile-devices
#6
Ziyang He, Xiaoqing Zhang, Yangjie Cao, Zhi Liu, Bo Zhang, Xiaoyan Wang
By running applications and services closer to the user, edge processing provides many advantages, such as short response time and reduced network traffic. Deep-learning based algorithms provide significantly better performances than traditional algorithms in many fields but demand more resources, such as higher computational power and more memory. Hence, designing deep learning algorithms that are more suitable for resource-constrained mobile devices is vital. In this paper, we build a lightweight neural network, termed LiteNet which uses a deep learning algorithm design to diagnose arrhythmias, as an example to show how we design deep learning schemes for resource-constrained mobile devices...
April 17, 2018: Sensors
https://www.readbyqxmd.com/read/29672845/drug-induced-proarrhythmia-and-torsade-de-pointes-a-primer-for-students-and-practitioners-of-medicine-and-pharmacy
#7
REVIEW
J Rick Turner, Ignacio Rodriguez, Emily Mantovani, Gary Gintant, Peter R Kowey, Ralph J Klotzbaugh, Krishna Prasad, Philip T Sager, Norman Stockbridge, Colette Strnadova
Multiple marketing withdrawals due to proarrhythmic concerns occurred in the United States, Canada, and the United Kingdom in the late 1980s to early 2000s. This primer reviews the clinical implications of a drug's identified proarrhythmic liability, the issues associated with these safety-related withdrawals, and the actions taken by the International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use (ICH) and by regulatory agencies in terms of changing drug development practices and introducing new nonclinical and clinical tests to asses proarrhythmic liability...
April 19, 2018: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/29671323/in-situ-visualization-of-herg-potassium-channel-via-dual-signal-amplification
#8
Xue-Jiao Yang, Kai Zhang, Hong-Yuan Chen, Jing-Juan Xu
Dysfunction of the human ether-a-go-go related gene (hERG)-encoded potassium channel is identified as a major cause of the long Q-T syndrome, a marker for the lethal cardiac arrhythmia. Furthermore, recent studies revealed that hERG K+ channel is a regulator of tumor cell apoptosis and proliferation. Herein, an ultrasensitive fluorescence assay combining DNA-functionalized gold nanoparticles and rolling circle amplification (RCA) is first attempted to visualize hERG channels in living cells. The spherical nucleic acids gold nanoparticles which can anchor on hERG channels in the cell membrane, not only act as the primary amplification elements, but also trigger the subsequent RCA reaction to achieve the secondary amplification...
April 19, 2018: Analytical Chemistry
https://www.readbyqxmd.com/read/29671105/mapping-and-ablation-of-rvot-type-arrhythmias-comparison-between-the-conventional-and-reversed-u-curve-methods
#9
Zhuo Liang, Xuejun Ren, Tao Zhang, Zhihong Han, Jianzeng Dong, Yunlong Wang
PURPOSE: We assessed conventional and reversed U curve methods for mapping and ablation of RVOT-type VAs. METHODS: Single-center data were reviewed from consecutive cases of symptomatic VAs of RVOT-type origin that were mapped and ablated successfully using conventional method in RVOT (pulmonary artery might be included) from January 2014 to December 2015 (cohort 1, n = 75) or conventional method in RVOT and reversed U curve in PSC (for first ablation attempt) from January 2016 to March 2017 (cohort 2, n = 60)...
April 18, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29670839/effects-of-postconditioning-with-fructose-on-arrhythmias-and-the-size-of-infarct-caused-by-global-ischemia-and-reperfusion-in-isolated-rat-heart
#10
Jila Haghi, Tahereh Eteraf-Oskouei, Moslem Najafi
Purpose: In the present study, postconditioning effect of fructose against ischemia/reperfusion (I/R)-induced arrhythmias and infarct size were investigated in isolated rat heart. Methods: The isolated hearts were divided into 7 groups, mounted on a Langendorff apparatus at constant pressure then subjected to 30 min zero flow global ischemia followed by 120 min reperfusion. In the control group, normal Krebs-Henseleit (K/H) solution was perfused into the hearts throughout the experiment. In two separate sets of experiments, the treatment groups received 12, 24 and 48 mM of fructose with/without normal glucose in K/H solution for 20 min at the beginning of reperfusion...
March 2018: Advanced Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/29670772/left-circumflex-artery-rupture-with-left-atrial-tamponade-and-functional-mitral-stenosis
#11
Weiting Huang, Khaled Mohamed Emadeldin Moheb Hammad, Victor Tar Toong Chao, Khung Keong Yeo
The growth in percutaneous transluminal devices has enabled operators to tackle more complex, native, and post-bypass surgery anatomy. However, complications such as coronary artery dissection, coronary perforation, retrograde aortic dissection, arrhythmias, and acute coronary syndrome still occur with resulting mortality rates of up to 4.2% in complex interventions. Perforation of the circumflex artery is of particular interest in view of its position and relation to the surrounding cardiac structures. This is a site of potential fluid collection, and as the left atrium is fixed to the parietal pericardium at the entry of the pulmonary veins, fluid in the oblique sinus can accumulate enough pressure to compress the left atrium and the coronary sinus...
2018: Case Reports in Cardiology
https://www.readbyqxmd.com/read/29670767/anxiety-and-depression-in-patients-with-permanent-atrial-fibrillation-prevalence-and-associated-factors
#12
Maria Polikandrioti, Ioannis Koutelekos, Georgios Vasilopoulos, Georgia Gerogianni, Maritsa Gourni, Sofia Zyga, George Panoutsopoulos
Atrial fibrillation (AF) is an important public health problem that is increasing at an alarming rate, worldwide. The most common type is permanent AF followed by the paroxysmal and persistent AF. Purpose . This study was aimed at exploring anxiety and depression and the associated factors in patients with permanent AF. Materials and Methods . The sample of the study included 170 AF patients. Data collection was performed by the method of interview using the "Hospital Anxiety and Depression Scale" (HADS) to assess anxiety and depression and a questionnaire including patients' characteristics...
2018: Cardiology Research and Practice
https://www.readbyqxmd.com/read/29669504/atrial-fibrillation-in-autoimmune-rheumatic-diseases-from-the-pathogenesis-to-the-treatment
#13
Giuseppe Ciconte, Manuel Conti, Martina Evangelista, Carlo Pappone
BACKGROUND: Atrial fibrillation (AF) is the most prevalent cardiac arrhythmia in the general population and is associated with an increased number of adverse outcomes. The onset and maintenance of this arrhythmia requires a trigger event and the presence of a predisposing substrate. Atrial fibrosis, a major characteristic of AF-related structural remodeling, represents a process closely related to inflammation as demonstrated by emerging evidence. Aim of this article is to review the evidence linking AF to systemic autoimmune diseases...
April 17, 2018: Reviews on Recent Clinical Trials
https://www.readbyqxmd.com/read/29668881/hyperactive-ryanodine-receptors-in-human-heart-failure-and-ischemic-cardiomyopathy-reside-outside-of-couplons
#14
Eef Dries, Demetrio J Santiago, Guillaume Gilbert, Ilse Lenaerts, Bert Vandenberk, Chandan K Nagaraju, Daniel M Johnson, Patricia Holemans, H Llewelyn Roderick, Niall Macquaide, Piet Claus, Karin R Sipido
Aims: In ventricular myocytes from humans and large mammals, the transverse and axial tubular system (TATS) network is less extensive than in rodents with consequently a greater proportion of ryanodine receptors (RyRs) not coupled to this membrane system. TATS remodeling in heart failure (HF) and after myocardial infarction (MI) increases the fraction of non-coupled RyR. Here we investigate whether this remodeling alters the activity of coupled and non-coupled RyR sub-populations through changes in local signaling...
April 14, 2018: Cardiovascular Research
https://www.readbyqxmd.com/read/29668588/a-delayed-diagnosis-of-catecholaminergic-polymorphic-ventricular-tachycardia-with-a-mutant-of-ryr2-at-c-7580t-g-for-6-years-in-a-9-year-old-child
#15
Hongyu Duan, Yongyi Lu, Song Yan, Lina Qiao, Yimin Hua, Yifei Li, Kaiyu Zhou, Chuan Wang
RATIONALE: Catecholaminergic polymorphic ventricular tachycardia (CPVT) is a rare but potentially lethal inherited arrhythmia syndrome induced by adrenergic stress. Due to the atypical clinical manifestations in early age, limited recognition and experience of pediatric cardiologists, and low awareness of the significance of genetic diagnosis in some underdeveloped areas in China, a delayed or missed diagnosis of CPVT in children is common and concerning. PATIENT CONCERNS: A 9-year and 3-month male child with recurrent exercise-induced syncope accompanied by convulsion was initially misdiagnosed as epilepsy since the first manifestation at the age of 3 years...
April 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29668450/comorbidities-of-copd-in-bulgarian-patients-prevalence-and-association-with-severity-and-inflammation
#16
Velin Stratev, Diana Petkova, Valentina Dimitrova, Jordan Petev
BACKGROUND: wis a disease with constantly rising economic and social burden; it is associated with multiple comorbidities which contribute to the disease severity. AIM: To investigate the prevalence of co-morbidities in COPD patients and their association with the disease severity and CRP levels. PATIENTS AND METHODS: We conducted a retrospective study among 338 COPD patients (mean age 65.2±7.6 years) with assessment of comorbidities, spirometry measurements and serum levels of CRP...
March 1, 2018: Folia Medica
https://www.readbyqxmd.com/read/29668335/electrocardiographic-changes-after-high-dose-corticosteroid-pulse-therapy-in-pemphigus-patients
#17
M Pishgahi, S Dadkhahfar, R M Robati, Z Kheradmand, M Shahidi-Dadras, O Zargari, D J Elpern
PURPOSE: The objective of the current study was to evaluate the effect of intravenous methylprednisolone pulse therapy on myocardial repolarization alterations, especially QT dispersion in anticipation of cardiovascular risks in patients with pemphigus vulgaris. METHODS: The current study is a prospective controlled study on the electrocardiographic changes after methylprednisolone pulse therapy in 50 patients with pemphigus vulgaris. RESULTS: A total of 50 patients (28 female and 22 male) were included in our study...
April 18, 2018: Journal of Dermatological Treatment
https://www.readbyqxmd.com/read/29667458/sudden-unexpected-death-in-epilepsy-ongoing-challenges-in-finding-mechanisms-and-prevention
#18
Doungporn Ruthirago, Parunyou Julayanont, Amputch Karukote, Mohamed Shehabeldin, Kenneth Nugent
Patients with epilepsy have a significantly higher risk of death than the general population. Sudden unexpected death in epilepsy (SUDEP) is the leading cause of sudden death among patients with epilepsy. Despite on-going research, there are still deficits in our knowledge about the mechanisms, genetic factors, and prevention of SUDEP. Current evidence suggests that cardiac arrhythmias, respiratory dysfunction, and brainstem arousal system dysfunction are the major mechanisms of SUDEP, and animal models support the role of neurotransmitters, especially serotonin and adenosine, in pathophysiology of SUDEP...
April 18, 2018: International Journal of Neuroscience
https://www.readbyqxmd.com/read/29667303/mir-146a-regulates-pm-1-induced-inflammation-via-nf-%C3%AE%C2%BAb-signaling-pathway-in-beas-2b-cells
#19
Limin Liu, Chong Wan, Wei Zhang, Longfei Guan, Guoxiong Tian, Fang Zhang, Wenjun Ding
Exposure to particulate matter (PM) leads to kinds of cardiopulmonary diseases, such as asthma, COPD, arrhythmias, lung cancer, etc., which are related to PM-induced inflammation. We have found that PM2.5 (aerodynamics diameter <2.5 µm) exposure induces inflammatory response both in vivo and in vitro. Since the toxicity of PM is tightly associated with its size and components, PM1 (aerodynamics diameter <1.0 µm) is supposed to be more toxic than PM2.5 . However, the mechanism of PM1 -induced inflammation is not clear...
April 18, 2018: Environmental Toxicology
https://www.readbyqxmd.com/read/29667277/arrhythmic-manifestation-of-peripartum-cardiomyopathy-case-report
#20
Patryk Siedlecki, Małgorzata Kurpesa, Barbara Uznańska-Loch, Ewa Trzos, Jarosław Damian Kasprzak
We report a case of 26-year-old woman, with arrhythmic manifestation of peripartum cardiomyopathy with moderate heart failure. Ventricular arrhythmia recorded in ambulatory Holter ECG (premature ventricular contractions) was most severe during pregnancy, reduced when beta-blocker therapy was initiated and almost completely resolved after delivery. Then, 1 year after hospitalization in Cardiology Department, recurrence was observed with recorded short episode of nonsustained ventricular tachycardia.
April 17, 2018: Annals of Noninvasive Electrocardiology
keyword
keyword
1858
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"