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https://www.readbyqxmd.com/read/28346857/the-influence-of-epicardial-fat-and-nonalcoholic-fatty-liver-disease-on-heart-rate-recovery-in-metabolic-syndrome
#1
Kyoung Im Cho, Eun Ah Jo, Sang Hoon Cho, Bo Hyun Kim
BACKGROUND: Epicardial adipose tissues reflecting visceral fat accumulations of the heart are associated with metabolic syndrome (MetS) and can be a predictor of other cardiometabolic diseases. It can adversely influence autonomic nervous system (ANS) of heart. Heart rate recovery (HRR) is an easy method for measuring ANS dysfunction. The purpose of this study was to determine whether epicardial fat thickness (EFT) and nonalcoholic fatty liver disease (NAFLD) are related to HRR in patients with MetS...
March 27, 2017: Metabolic Syndrome and related Disorders
https://www.readbyqxmd.com/read/28346330/differentiation-of-impaired-from-preserved-hemodynamics-in-patients-with-fontan-circulation-using-real-time-phase-velocity-cardiovascular-magnetic-resonance
#2
Hermann Körperich, Katja Müller, Peter Barth, Jürgen Gieseke, Nikolaus Haas, Ingram Schulze-Neick, Wolfgang Burchert, Deniz Kececioglu, Kai T Laser
PURPOSE: Progressive impairment of hemodynamics in patients with Fontan circulation is common, multifactorial, and associated with decreased quality of life and increased morbidity. We sought to assess hemodynamic differences between patients with preserved (preserved Fontans) and those with impaired circulation (impaired Fontans) after pulmonary vasodilation using oxygen and under forced breathing conditions. MATERIALS AND METHODS: Real-time phase-contrast cardiovascular magnetic resonance was performed using non-ECG triggered echo-planar imaging (temporal resolution=24 to 28 ms) in the ascending aorta (AAo) and superior vena cava (SVC)/inferior vena cava (IVC) on room air, after 100% oxygen inhalation (4 L/min; 10 min) and on forced breathing in 29 Fontan patients (17...
March 24, 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28346316/impact-of-direction-of-unloading-influence-on-template-rate-of-perceived-exertion
#3
Beau Kjerulf Greer, Patrick R Young, Brooke Thompson, Brendan J Rickert, Matthew F Moran
It is suggested that exercisers engage in a process of teleoanticipation and create an exercise template based upon previous experience with the exercise task which guides their perceptions of the amount of effort required for task completion. The present study examined how altering workload intensity during a positive-pressure treadmill task may impact ratings of perceived exertion (RPE). In a counter-balanced design, 15 collegiate cross country runners (7 males, 8 females) performed two 25-min runs at a constant velocity while bodyweight (BW) was either increased from 60% to 100% (INC) or decreased from 100% to 60% (DEC) in 5 min increments...
March 23, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28346285/effect-of-early-revascularization-on-outcomes-in-diabetic-patients-with-stable-ischemic-heart-disease-and-previous-myocardial-infarction-in-the-bypass-angioplasty-investigation-2-diabetes-trial
#4
Matthew J Chung, Eric Novak, David L Brown
BACKGROUND: Survivors of a myocardial infarction (MI) are at a considerable risk of developing further cardiovascular events, including recurrent MI, heart failure, stroke, and death. Patients with type 2 diabetes mellitus and stable ischemic heart disease (SIHD) have worse outcomes than their nondiabetic counterparts, and those with previous MI may be at particularly high risk. Yet, little is known about the effect of adding early revascularization to intensive medical therapy in this high-risk group...
March 24, 2017: Coronary Artery Disease
https://www.readbyqxmd.com/read/28346241/hemodynamic-responses-to-magnetic-stimulation-of-carotid-sinus-in-normotensive-rabbits
#5
Jun Zhang, Qinqin Cao, Rongrong Li, Jingze Hu, Jiafei Dai, Hao Zhang, Huaiming Wang, Fang Yang, Ruidong Ye, Xinfeng Liu, Gelin Xu
OBJECTIVES: Carotid baroreflex plays a crucial role in regulating arterial pressure. Based on this knowledge, electrical stimulation of carotid sinus was designed for treating resistant hypertension. However, the clinical implication of electrical stimulation of carotid sinus is largely restrained due to obvious invasiveness. This study aimed to evaluate the efficacy of magnetic stimulation of carotid sinus (MSCS), a noninvasive strategy, for lowering blood pressure in rabbits. METHODS: MSCS with graded intensities and frequencies were systematically attempted in normotensive rabbits...
March 24, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28345604/mind-wandering-and-alterations-to-default-mode-network-connectivity-when-listening-to-naturalistic-versus-artificial-sounds
#6
Cassandra D Gould van Praag, Sarah N Garfinkel, Oliver Sparasci, Alex Mees, Andrew O Philippides, Mark Ware, Cristina Ottaviani, Hugo D Critchley
Naturalistic environments have been demonstrated to promote relaxation and wellbeing. We assess opposing theoretical accounts for these effects through investigation of autonomic arousal and alterations of activation and functional connectivity within the default mode network (DMN) of the brain while participants listened to sounds from artificial and natural environments. We found no evidence for increased DMN activity in the naturalistic compared to artificial or control condition, however, seed based functional connectivity showed a shift from anterior to posterior midline functional coupling in the naturalistic condition...
March 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28345541/a-risk-prediction-model-for-in-hospital-mortality-in-patients-with-suspected-myocarditis
#7
Duo Xu, Ruo-Chi Zhao, Wen-Hui Gao, Han-Bin Cui
BACKGROUND: Myocarditis is an inflammatory disease of the myocardium that may lead to cardiac death in some patients. However, little is known about the predictors of in-hospital mortality in patients with suspected myocarditis. Thus, the aim of this study was to identify the independent risk factors for in-hospital mortality in patients with suspected myocarditis by establishing a risk prediction model. METHODS: A retrospective study was performed to analyze the clinical medical records of 403 consecutive patients with suspected myocarditis who were admitted to Ningbo First Hospital between January 2003 and December 2013...
April 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28345365/atrioventricular-nodal-ablation-in-patients-with-resynchronization-therapy-and-atrial-fibrillation-long-term-results
#8
Arleen Aune, Svein Færestrand, Per Ivar Hoff, Peter Schuster
OBJECTIVES: Atrioventricular nodal ablation (AVNA) is recommended for patients (pts) with cardiac resynchronization therapy (CRT) having atrial fibrillation (AF) and incomplete ventricular capture (Class IIa, level B). AVNA reduces mortality and improves the New York Heart Association (NYHA) functional class during intermediate term follow-up. The objectives were to study the long-term outcome regarding quality of life (QoL) and survival of our CRT pts after AVNA. DESIGN: 37 CRT-pts undergoing AVNA due to inadequate biventricular pacing were included in the study...
March 27, 2017: Scandinavian Cardiovascular Journal: SCJ
https://www.readbyqxmd.com/read/28345316/the-implication-of-coronary-artery-calcium-testing-for-cardiovascular-disease-prevention-and-diabetes
#9
REVIEW
Ron Blankstein, Ankur Gupta, Jamal S Rana, Khurram Nasir
Over the last two decades coronary artery calcium (CAC) scanning has emerged as a quick, safe, and inexpensive method to detect the presence of coronary atherosclerosis. Data from multiple studies has shown that compared to individuals who do not have any coronary calcifications, those with severe calcifications (i.e., CAC score >300) have a 10-fold increase in their risk of coronary heart disease events and cardiovascular disease. Conversely, those that have a CAC of 0 have a very low event rate (~0.1%/year), with data that now extends to 15 years in some studies...
March 2017: Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28345302/outcome-of-subsequent-pregnancies-in-patients-with-a-history-of-peripartum-cardiomyopathy
#10
Denise Hilfiker-Kleiner, Arash Haghikia, David Masuko, Justus Nonhoff, Dominik Held, Elena Libhaber, Mark C Petrie, Niki L Walker, Edith Podewski, Dominik Berliner, Johann Bauersachs, Karen Sliwa
AIMS: Subsequent pregnancies (SSPs) in patients with peripartum cardiomyopathy (PPCM) have a high risk of heart failure relapse. We report on outcome of SSPs in PPCM patients in Germany, Scotland, and South Africa. METHODS AND RESULTS: Among 34 PPCM patients with a SSP, pregnancy ended prematurely in four patients while it was full-term in 30. Overall relapse rate [left ventricular ejection fraction, LVEF <50% or death after at least 6-month follow-up] was 56% with 12% (4/34) mortality...
March 27, 2017: European Journal of Heart Failure
https://www.readbyqxmd.com/read/28345212/cardiac-iodine-123-metaiodobenzylguanidine-scintigraphy-may-be-useful-to-identify-pathologic-from-physiologic-sinus-bradycardia
#11
Akihiro Sunaga, Masaharu Masuda, Masashi Fujita, Osamu Iida, Takashi Kanda, Yasuhiro Matsuda, Takakazu Morozumi, Toshiaki Mano, Masaaki Uematsu
BACKGROUND: Sinus bradycardia includes pathologic sick sinus syndrome (SSS) and physiologic bradycardia such as athletes' heart. Pacemaker implantation is indicated for patients with symptomatic SSS; however, the indication remains difficult to determine in those with mild and/or unspecific symptoms. The sympathetic tone is increased in response to reduced cardiac output in SSS, whereas excessive vagal tone has been seen in physiological bradycardia. We sought to determine if cardiac iodine-123-metaiodobenzylguanidine scintigraphy ((123) I-MIBG) was useful in differentiating pathologic from physiologic sinus bradycardia...
March 27, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28345052/cardiac-myosin-binding-protein-c-ser-302-phosphorylation-regulates-cardiac-%C3%AE-adrenergic-reserve
#12
Ranganath Mamidi, Kenneth S Gresham, Jiayang Li, Julian E Stelzer
Phosphorylation of cardiac myosin binding protein-C (MyBP-C) modulates cardiac contractile function; however, the specific roles of individual serines (Ser) within the M-domain that are targets for β-adrenergic signaling are not known. Recently, we demonstrated that significant accelerations in in vivo pressure development following β-agonist infusion can occur in transgenic (TG) mouse hearts expressing phospho-ablated Ser(282) (that is, TG(S282A)) but not in hearts expressing phospho-ablation of all three serines [that is, Ser(273), Ser(282), and Ser(302) (TG(3SA))], suggesting an important modulatory role for other Ser residues...
March 2017: Science Advances
https://www.readbyqxmd.com/read/28344957/predicting-factors-for-success-of-vaginal-delivery-in-preterm-induction-with-prostaglandin-e2
#13
Yoo Min Kim, Ju Young Park, Ji-Hee Sung, Suk-Joo Choi, Soo-Young Oh, Cheong-Rae Roh, Jong-Hwa Kim
OBJECTIVE: To evaluate the efficacy and safety of prostaglandin (PG) E2 for preterm labor induction and to investigate the predictive factors for the success of vaginal delivery. METHODS: A retrospective cohort study was performed in women (n=155) at 24+0 to 36+6 weeks of gestation who underwent induction of labor using a PGE2 vaginal pessary (10 mg, Propess) from January 2009 to December 2015. Success rates of vaginal delivery according to gestational age at induction and incidence of intrapartum complications such as tachysystole and nonreassuring fetal heart rate were investigated...
March 2017: Obstetrics & Gynecology Science
https://www.readbyqxmd.com/read/28344739/effect-of-caffeine-on-near-maximal-blood-pressure-and-blood-pressure-recovery-in-physically-active-college-aged-females
#14
Laura E Connahan, Christopher A Ott, Vaughn W Barry
The purpose of this study is to determine how caffeine affects exercise blood pressure (BP) and active and passive recovery BP after vigorous intensity exercise in physically active college-aged females. Fifteen physically active, ACSM stratified low-risk females (age (y): 23.53 ± 4.07, weight (kg): 60.34 ± 3.67, height (cm): 165.14 ± 7.20, BMI (kg/m(2)): 22.18 ± 1.55) participated in two Bruce protocol exercise tests. Before each test participants consumed 1) a placebo or 2) 3.3 mg·kg(-1) of caffeine at least one hour before exercise in a counterbalanced double-blinded fashion...
2017: International Journal of Exercise Science
https://www.readbyqxmd.com/read/28344733/an-acute-bout-of-a-controlled-breathing-frequency-lowers-sympathetic-neural-outflow-but-not-blood-pressure-in-healthy-normotensive-subjects
#15
Shannon L McClain, Alexa M Brooks, Sara S Jarvis
Controlled or paced breathing is often used as a stress reduction technique but the impact on blood pressure (BP) and sympathetic outflow have not been consistently reported. The purpose of this study was to determine whether a controlled breathing (12 breaths/min, CB) rate would be similar to an individual's spontaneous breathing (SB) rate. Secondly, would a CB rate of 12 breaths/min alter heart rate (HR), BP, and indices of muscle sympathetic nerve activity (MSNA). Twenty-one subjects (10 women, 11 men) performed two trials: SB, where the subject chose a comfortable breathing rate; and CB, where the subject breathed at a pace of 12 breaths/min...
2017: International Journal of Exercise Science
https://www.readbyqxmd.com/read/28344732/autonomic-modulation-in-older-women-using-resistance-exercise-as-a-countermeasure
#16
Hayden Gerhart, Yu Lun Tai, Curtis Fennell, Xián Mayo, J Derek Kingsley
It is unclear if resistance training (RT) can be used to alter declines in autonomic modulation associated with aging. Young women (YW; range 18-25 yrs) and older women (OW; range 50-72 yrs) were compared at baseline. Only OW underwent supervised RT 2 days a week for 12-weeks. Baseline and post-training measurements included heart rate variability (HRV) and complexity (Sample Entropy) to assess autonomic modulation. The 12-weeks of RT consisted of 9 exercises performing 3 sets of 8-12 repetitions. At baseline, group differences in maximal strength, and autonomic modulation were evaluated with a one-way ANOVA with BMI as a covariate...
2017: International Journal of Exercise Science
https://www.readbyqxmd.com/read/28344612/the-polish-interventional-cardiology-tavi-survey-picts-adoption-and-practice-of-transcatheter-aortic-valve-implantation-in-poland
#17
Radosław Parma, Maciej Dąbrowski, Andrzej Ochała, Adam Witkowski, Dariusz Dudek, Zbigniew Siudak, Jacek Legutko
INTRODUCTION: Few studies have assessed the development of transcatheter aortic valve implantation (TAVI) in Poland since its introduction in 2008, and data on current TAVI activity or practice are missing. AIM: To assess the dynamics of TAVI adoption in Poland and to detect differences among Polish centres in TAVI practice and decision-making. MATERIAL AND METHODS: The Polish Interventional Cardiology TAVI Survey (PICTS) was approved by the Polish Association of Cardiovascular Interventions and presented to all 21 national TAVI centres...
2017: Postępy W Kardiologii Interwencyjnej, Advances in Interventional Cardiology
https://www.readbyqxmd.com/read/28344611/percutaneous-pulmonary-valve-implantation-state-of-the-art-and-polish-experience
#18
REVIEW
Elżbieta K Biernacka, Witold Rużyłło, Marcin Demkow
Percutaneous pulmonary valve implantation (PPVI) is a relatively new method of treating patients with right ventricular outflow tract (RVOT) dysfunction after surgical repair of congenital heart disease. Since its introduction in 2000 by Bonhoeffer, more than ten thousand PPVI procedures have been performed worldwide. Indications for PPVI have been adapted from those accepted for surgical intervention. Two types of valves are being used: Melody Medtronic available in diameters 16 mm and 18 mm and the family of Edwards SAPIEN valves 23, 26 and 29...
2017: Postępy W Kardiologii Interwencyjnej, Advances in Interventional Cardiology
https://www.readbyqxmd.com/read/28344545/music-improves-subjective-feelings-leading-to-cardiac-autonomic-nervous-modulation-a-pilot-study
#19
Satoshi Kume, Yukako Nishimura, Kei Mizuno, Nae Sakimoto, Hiroshi Hori, Yasuhisa Tamura, Masanori Yamato, Rika Mitsuhashi, Keigo Akiba, Jun-Ichi Koizumi, Yasuyoshi Watanabe, Yosky Kataoka
It is widely accepted that listening to music improves subjective feelings and reduces fatigue sensations, and different kinds of music lead to different activations of these feelings. Recently, cardiac autonomic nervous modulation has been proposed as a useful objective indicator of fatigue. However, scientific considerations of the relation between feelings of fatigue and cardiac autonomic nervous modulation while listening to music are still lacking. In this study, we examined which subjective feelings of fatigue are related to participants' cardiac autonomic nervous function while they listen to music...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28344458/the-effects-of-non-contingent-feedback-on-the-incidence-of-plateau-at-v%C3%AC-o2max
#20
Dan Gordon, Marie Gernigon, James Baker, Viviane Merzbach, Adrian Scruton
The purpose of this study was to examine the effects of non-contingent feedback in the form of heart rate (HR) on the incidence of plateau at V̇O2max. Ten physically active males (age 24.8 yrs ± 4.2; mass 81.4 ± 9.0 kg; stature 1.80 ± 0.11 m, V̇O2max 53.2 ± 5.8 ml·kg(-1.)min(-1)) who were V̇O2max testing naïve but were cognisant as to the heart rate responses to exercise completed four incremental tests to volitional exhaustion, separated by ~72 h for the determination of V̇O2max and gas exchange threshold...
March 2017: Journal of Sports Science & Medicine
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