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Clinical Medicine Insights. Cardiology

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https://www.readbyqxmd.com/read/29326534/is-exercise-training-appropriate-for-patients-with-advanced-heart-failure-receiving-continuous-inotropic-infusion-a-review
#1
REVIEW
Eisuke Amiya, Masanobu Taya
Exercise-based rehabilitation programs have been reported to have beneficial effects for patients with heart failure. However, there is little evidence about whether this is the case in patients with more severe heart failure. In particular, there is a question in the clinical setting whether patients with advanced heart failure and continuous inotropic infusion should be prescribed exercise training. In contrast, many studies conclude that prolonged immobility associated with heart failure profoundly impairs physical function and promotes muscle wasting that could further hasten the course of heart failure...
2018: Clinical Medicine Insights. Cardiology
https://www.readbyqxmd.com/read/29326533/manually-steerable-catheter-with-improved-agility
#2
Geir Arne Tangen, Frode Manstad-Hulaas, Erik Nypan, Reidar Brekken
Purpose: A prototype steerable catheter was designed for endovascular procedures. This technical pilot study reports the initial experience using the catheter for cannulation of visceral arteries. Technique: The 7F catheter was manually steerable with operator control handle for bending and rotation of the tip. The maximum bending angle was approximately 90° and full 360° rotation of the tip was supported. The study involved 1 pig with 4 designated target arteries: the left and right renal arteries, the superior mesenteric artery, and the celiac trunk...
2018: Clinical Medicine Insights. Cardiology
https://www.readbyqxmd.com/read/29308018/patients-with-intermittent-claudication-and-chronic-widespread-pain-improves-in-health-related-quality-of-life-after-invasive-but-not-after-noninvasive-treatment
#3
Hans Iv Lindgren, Håkan Pärsson, Anders Gottsäter, Stefan Bergman
Background: Intermittent claudication (IC) is traditionally managed with risk factor modification, best medical treatment (BMT), and exercise training. Comorbidities such as diabetes and ischemic heart disease affect both results of invasive treatment and health-related quality of life (HRQoL) negatively. It is unknown how chronic widespread pain (CWP) influences the results of invasive treatment. We evaluated the influence of CWP on HRQoL in patients undergoing invasive (open surgery or endovascular treatment) and noninvasive BMT of IC...
2017: Clinical Medicine Insights. Cardiology
https://www.readbyqxmd.com/read/29308017/improvements-in-regional-left-ventricular-function-following-late-percutaneous-coronary-intervention-for-anterior-myocardial-infarction
#4
Srilakshmi M Adhyapak, Prahlad G Menon, Kiron Varghese, Abhinav Mehra, S B Lohitashwa, Fabio Fantini
Background: Late revascularization following a myocardial infarction has questionable clinical benefit. Methods: We studied 13 patients with anterior wall myocardial infarction who underwent percutaneous coronary intervention within 2 weeks of the primary event, by quantitative analysis of 2-dimensional echocardiographic images. Endocardial segmentations of the left ventricular (LV) endocardium from the 4-chamber views were studied over time to establish cumulative wall displacements (CWDs) throughout the cardiac cycle...
2017: Clinical Medicine Insights. Cardiology
https://www.readbyqxmd.com/read/29276418/peripheral-artery-occlusive-disease-among-patients-with-chronic-myeloid-leukemia-receiving-tyrosine-kinase-inhibitors-a-cross-sectional-case-control-study
#5
Thanawat Rattanathammethee, Adisak Tantiworawit, Ekarat Rattarittamrong, Chatree Chai-Adisaksopha, Sasinee Hantrakool, Arintaya Phrommintikul, Wanwarang Wongcharoen, Siriluck Gunaparn, Lalita Norasetthada
Background: There were some reports of peripheral artery occlusive disease (PAOD) associated with nilotinib usage in chronic myeloid leukemia (CML). These complications in other tyrosine kinase inhibitors are revealed as unknown. Materials and methods: We determined the prevalence of PAOD in patients with CML as compared with matched-control population by cross-sectional case-control study. Peripheral artery occlusive disease was screened by ankle-brachial index (ABI)...
2017: Clinical Medicine Insights. Cardiology
https://www.readbyqxmd.com/read/29270038/takotsubo-cardiomyopathy-precipitated-by-tapering-of-anxiolytic-medication-a-case-report
#6
Christopher J Lafferty, Kristen M Lafferty, Tariq Bhat, Peter C Olson, Adam Atoot, Farshid Daneshvar, Donald A McCord
Takotsubo cardiomyopathy is a transient apical ballooning of the left ventricle typically with electrocardiographic changes and enzyme release without evidence of obstructive coronary artery disease. It typically occurs in postmenopausal women and may have a predilection for patients with anxiety disorders. The following is a case in which we believe takotsubo cardiomyopathy was induced by the tapering of antianxiety medications. We feel that health care professionals should be aware of this possibility in such a patient population especially when they have demonstrated cardiovascular symptomatology...
2017: Clinical Medicine Insights. Cardiology
https://www.readbyqxmd.com/read/29270037/clinical-and-echocardiographic-predictors-of-arrhythmias-detected-with-24-hour-holter-electrocardiography-among-hypertensive-heart-failure-patients-in-nigeria
#7
Tuoyo Omasan Mene-Afejuku, Michael Olabode Balogun, Anthony Olubunmi Akintomide, Rasaaq Ayodele Adebayo, Olufemi Eyitayo Ajayi, Valentine N Amadi, Omolola Abiodun Oketona, Amanze Nkemjika Ikwu, Bamidele Mene-Afejuku, Olaniyi James Bamikole
Background: Hypertensive heart failure (HHF) is the commonest form of heart failure in Nigeria. There is paucity of data in Nigeria on 24-hour Holter electrocardiography (24-HHECG) and important predictors of arrhythmias among HHF patients. Objectives: To determine the 24-HHECG characteristics among HHF patients. To determine the clinical and echocardiographic predictors of arrhythmias detected using 24-HHECG among HHF patients. Methods: A total of 100 HHF patients as well as 50 age-matched and sex-matched apparently healthy controls were prospectively recruited over a period of 1 year...
2017: Clinical Medicine Insights. Cardiology
https://www.readbyqxmd.com/read/29230090/calcium-dynamics-and-cardiac-arrhythmia
#8
EDITORIAL
Makarand Deo, Seth H Weinberg, Patrick M Boyle
This Special Collection will gather all studies highlighting recent advances in theoretical and experimental studies of arrhythmia, with a specific focus on research seeking to elucidate links between calcium homeostasis in cardiac cells and organ-scale disruption of heart rhythm.
2017: Clinical Medicine Insights. Cardiology
https://www.readbyqxmd.com/read/28974920/influence-of-apolipoprotein-e-on-the-lipid-profile-and-postprandial-triglyceride-levels-in-brazilian-postmenopausal-women-with-artery-disease
#9
Lúcia Helena Bonalume Tácito, Lilian Nakachima Yamada, Marcela Augusta de Souza Pinhel, Juan Carlos Yugar-Toledo, Dorotéia Rossi Silva Souza
This study confirms the association of risk factors for coronary artery disease (CAD) and the apoE polymorphisms, specifically related to the APOE*4 allele, with coronary disease in postmenopausal women. Significantly altered values of the lipid profile were found in patients when compared with controls, independent of the presence of the APOE*4 allele. However, the controls showed higher high-density lipoprotein cholesterol (HDL-C) levels and reduced triglyceride (TG) levels, differing significantly from patients...
2017: Clinical Medicine Insights. Cardiology
https://www.readbyqxmd.com/read/28951660/treatment-with-tafamidis-slows-disease-progression-in-early-stage-transthyretin-cardiomyopathy
#10
Marla B Sultan, Balarama Gundapaneni, Jennifer Schumacher, Jeffrey H Schwartz
BACKGROUND: Transthyretin cardiomyopathy (TTR-CM) is a progressive, fatal disease caused by the accumulation of misfolded transthyretin (TTR) amyloid fibrils in the heart. Tafamidis is a kinetic stabilizer of TTR that inhibits misfolding and amyloid formation. METHODS: In this post hoc analysis, data from an observational study (Transthyretin Amyloidosis Cardiac Study; n = 29) were compared with an open-label study of tafamidis in patients with TTR-CM (Fx1B-201; n = 35)...
2017: Clinical Medicine Insights. Cardiology
https://www.readbyqxmd.com/read/28804249/pacing-spikes-all-over
#11
REVIEW
Mohammed Shurrab, Teresa Pagacz, Ayelet Shauer, Ilan Lashevsky, David Newman, Eugene Crystal
Ventricular safety pacing (VSP) is used to avoid cross talk by delivering ventricular stimulus shortly after an atrial-paced event if ventricular-sensed event occurs. Although VSP is a protective feature that exists for decades in different pacing devices, there are some reports of unfavorable outcomes of this algorithm. More so, health care providers sometimes face difficulties in interpreting and dealing with VSP strips. This case report discusses an important pacemaker algorithm and encourages further attention to possible pitfalls and hence avoids unnecessary interventions...
2017: Clinical Medicine Insights. Cardiology
https://www.readbyqxmd.com/read/28804248/effect-of-chronic-hepatitis-c-virus-treatment-by-combination-therapy-on-cardiovascular-system
#12
Reda Biomy, Mohamed Abdelshafy, Ahmed Abdelmonem, Hesham Abu-Elenin, George Ghaly
BACKGROUND: The prevalence of hepatitis C virus (HCV) in Egypt is quite high, and the combined oral direct-acting antiviral agents (DAAs) may have impressive results. OBJECTIVE: To assess the cardiovascular effects of DAAs in patients with HCV. METHODS: A total of 170 patients with HCV were divided into 2 groups: first group (100 patients) received triple combination therapy (pegylated interferon alfa, sofosbuvir, and ribavirin, whereas the second group (70 patients) received dual combination therapy (sofosbuvir and simeprevir)...
2017: Clinical Medicine Insights. Cardiology
https://www.readbyqxmd.com/read/28638244/cardiac-rehabilitation-for-patients-with-coronary-artery-disease-a-practical-guide-to-enhance-patient-outcomes-through-continuity-of-care
#13
Catherine Giuliano, Belinda J Parmenter, Michael K Baker, Braden L Mitchell, Andrew D Williams, Katie Lyndon, Tarryn Mair, Andrew Maiorana, Neil A Smart, Itamar Levinger
Coronary artery disease (CAD) is a leading cause of disease burden worldwide. Referral to cardiac rehabilitation (CR) is a class I recommendation for all patients with CAD based on findings that participation can reduce cardiovascular and all-cause mortality, as well as improve functional capacity and quality of life. However, programme uptake remains low, systematic progression through the traditional CR phases is often lacking, and communication between health care providers is frequently suboptimal, resulting in fragmented care...
2017: Clinical Medicine Insights. Cardiology
https://www.readbyqxmd.com/read/28607546/histologic-sequelae-of-apical-hypertrophic-cardiomyopathy-dystrophic-calcification
#14
Shahryar G Saba, John N Makaryus, Navid Rahmani, Ram Jadonath
We present cardiac computed tomography (CT) findings demonstrating apical hypertrophic cardiomyopathy with dystrophic calcification of the left ventricular apex. The absence of significant epicardial coronary artery disease demonstrated by coronary CT angiography suggests that increased wall tension and decreased microvascular perfusion over time account for the dyskinetic apical myocardium, rather than myocardial infarction secondary to atherosclerotic plaque rupture. These observations support CT as the imaging modality of choice to visualize the deposition of calcium in injured myocardial tissue, a recognized occurrence in chronically infarcted myocardium...
2017: Clinical Medicine Insights. Cardiology
https://www.readbyqxmd.com/read/28607545/the-genetics-of-aortopathies-in-clinical-cardiology
#15
REVIEW
Amit Goyal, Ali R Keramati, Matthew J Czarny, Jon R Resar, Arya Mani
Aortopathies pose a significant healthcare burden due to excess early mortality, increasing incidence, and underdiagnosis. Understanding the underlying genetic causes, early diagnosis, timely surveillance, prophylactic repair, and family screening are keys to addressing these diseases. Next-generation sequencing continues to expand our understanding of the genetic causes of heritable aortopathies, rapidly clarifying their underlying molecular pathophysiology and suggesting new potential therapeutic targets...
2017: Clinical Medicine Insights. Cardiology
https://www.readbyqxmd.com/read/28579858/cardiovascular-magnetic-resonance-imaging-incremental-value-in-a-series-of-361-patients-demonstrating-cost-savings-and-clinical-benefits-an-outcome-based-study
#16
Vinayak A Hegde, Robert Ww Biederman, J Ronald Mikolich
BACKGROUND: This study was designed to assess the clinical impact and cost-benefit of cardiovascular magnetic resonance imaging (CMR). In the face of current health care cost concerns, cardiac imaging modalities have come under focused review. Data related to CMR clinical impact and cost-benefit are lacking. METHODS AND RESULTS: Retrospective review of 361 consecutive patients (pts) who underwent CMR exams was conducted. Indications for CMR were tabulated for appropriateness criteria...
2017: Clinical Medicine Insights. Cardiology
https://www.readbyqxmd.com/read/28469496/use-and-misuse-of-aspirin-in-primary-cardiovascular-prevention
#17
REVIEW
Sergio Coccheri
The use of low-dose aspirin in primary prevention of cardiovascular (CV) events in healthy or apparently healthy people is a widely debated topic. Many arguments indicate that "primary prevention" is only a conventional definition and that the transition from primary to secondary prevention represents a continuum of increasing levels of CV risk. Although there are no direct proofs of a different efficacy of aspirin at different CV risk levels, in low-risk populations aspirin will appear to be less efficient...
2017: Clinical Medicine Insights. Cardiology
https://www.readbyqxmd.com/read/28469495/psychological-responses-to-acute-aerobic-resistance-or-combined-exercise-in-healthy-and-overweight-individuals-a-systematic-review
#18
REVIEW
Thomas J Elkington, Samantha Cassar, André R Nelson, Itamar Levinger
INTRODUCTION: Psychological distress and depression are risk factors for cardiovascular disease (CVD). As such, a reduction in psychological distress and increase in positive well-being may be important to reduce the risk for future development of CVD. Exercise training may be a good strategy to prevent and assist in the management of psychological disorders. The psychological effects of the initial exercise sessions may be important to increase exercise adherence. The aims of this systematic review were (a) to examine whether acute aerobic, resistance, or a combination of the 2 exercises improves psychological well-being and reduces psychological distress in individuals with healthy weight and those who are overweight/obese but free from psychological disorders, and (b) if so, to examine which form of exercise might yield superior results...
2017: Clinical Medicine Insights. Cardiology
https://www.readbyqxmd.com/read/28469494/studying-dyadic-structure-function-relationships-a-review-of-current-modeling-approaches-and-new-insights-into-ca-2-mis-handling
#19
Mary M Maleckar, Andrew G Edwards, William E Louch, Glenn T Lines
Excitation-contraction coupling in cardiac myocytes requires calcium influx through L-type calcium channels in the sarcolemma, which gates calcium release through sarcoplasmic reticulum ryanodine receptors in a process known as calcium-induced calcium release, producing a myoplasmic calcium transient and enabling cardiomyocyte contraction. The spatio-temporal dynamics of calcium release, buffering, and reuptake into the sarcoplasmic reticulum play a central role in excitation-contraction coupling in both normal and diseased cardiac myocytes...
2017: Clinical Medicine Insights. Cardiology
https://www.readbyqxmd.com/read/28469493/beyond-the-electrocardiogram-mutations-in-cardiac-ion-channel-genes-underlie-nonarrhythmic-phenotypes
#20
REVIEW
Thomas M Roston, Taylor Cunningham, Anna Lehman, Zachary W Laksman, Andrew D Krahn, Shubhayan Sanatani
Cardiac ion channelopathies are an important cause of sudden death in the young and include long QT syndrome, Brugada syndrome, catecholaminergic polymorphic ventricular tachycardia, idiopathic ventricular fibrillation, and short QT syndrome. Genes that encode ion channels have been implicated in all of these conditions, leading to the widespread implementation of genetic testing for suspected channelopathies. Over the past half-century, researchers have also identified systemic pathologies that extend beyond the arrhythmic phenotype in patients with ion channel gene mutations, including deafness, epilepsy, cardiomyopathy, periodic paralysis, and congenital heart disease...
2017: Clinical Medicine Insights. Cardiology
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