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exercise after myocardial infarction

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https://www.readbyqxmd.com/read/28545628/comparison-of-the-appropriateness-of-myocardial-perfusion-imaging-in-men-versus-women
#1
Ali Alsamarah, Asha Bansari, Hesham Nasser, Wajiha Raza, Issa Alsamarah, Anastasiya Bagrova, David E Winchester
After a decade of appropriate use criteria publication, the degree and predictors of inappropriate use in women compared with men are not known. We conducted a retrospective cohort investigation comparing appropriateness categories (appropriate, maybe appropriate, and rarely appropriate) and cardiovascular outcomes in patients undergoing nuclear myocardial perfusion imaging (MPI) between June 2011 and September 2014 in predominantly inpatient setting. Of 1,475 cases reviewed, 747 (50.6%) were women, and they were more likely to have rarely appropriate use 118 (15...
April 27, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28520537/anomalous-origin-of-right-coronary-artery-from-left-coronary-sinus-13-cases-treated-with-the-reimplantation-technique
#2
Alain Cubero, Alejandro Crespo, Gadah Hamzeh, Andrés Cortes, Daniel Rivas, José Ignacio Aramendi
OBJECTIVES: Anomalous aortic origin of a coronary artery is uncommon but potentially clinically significant. Manifestations vary from asymptomatic patients to those who present with angina pectoris, myocardial infarction, heart failure, syncope, arrhythmias, and sudden death. We describe our experience with surgical reimplantation and results at midterm follow-up. METHODS: Between February 2003 and July 2016, a total of 13 patients with anomalous origin of the right coronary artery (RCA) from the left sinus underwent surgical reimplantation...
May 2017: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/28492564/-heart-rate-as-a-therapeutic-target-after-acute-coronary-syndrome-and-in-chronic-coronary-heart-disease
#3
Marco Ambrosetti, Giuseppe Scardina, Giuseppe Favretto, Pier Luigi Temporelli, Pompilio Massimo Faggiano, Cesare Greco, Roberto Franco Pedretti
For patients with stable coronary artery disease (SCAD), either after hospitalization for acute cardiac events or in the chronic phase, comprehensive treatment programs should be devoted to: (i) reducing mortality and major adverse cardiovascular events, (ii) reducing the ischemic burden and related symptoms, and (iii) increasing exercise capacity and quality of life.Heart rate (HR) has demonstrated to have prognostic value and patients beyond the limit of 70 bpm display increased risk of all the above adverse outcomes, even after adjustment for parameters such as the extension of myocardial infarction and the presence of heart failure...
March 2017: Giornale Italiano di Cardiologia
https://www.readbyqxmd.com/read/28480026/exercise-training-provides-cardioprotection-by-activating-and-coupling-endothelial-nitric-oxide-synthase-via-a-%C3%AE-3-adrenergic-receptor-amp-activated-protein-kinase-signaling-pathway
#4
Larry A Barr, Jonathan P Lambert, Yuuki Shimizu, Lili A Barouch, Nawazish Naqvi, John W Calvert
Exercise training confers sustainable protection against ischemia/reperfusion injury. However, the mechanism by which this process occurs is not fully understood. Previously, it was shown that β3-adrenergic receptors (β3-ARs) play a critical role in regulating the activation of endothelial nitric oxide synthase (eNOS) in response to exercise and play a critical role in exercise-mediated cardioprotection. Intriguingly, a deficiency in β3-ARs led to increased myocardial injury following exercise training. The purpose of the current study was to determine mechanisms by which β3-ARs are linked to eNOS activation and to determine the mechanism responsible for the exacerbated ischemia/reperfusion injury displayed by β3-AR deficient (β3-AR KO) mice after exercise training...
January 2017: Medical Gas Research
https://www.readbyqxmd.com/read/28465976/addition-of-exercise-to-dipyridamole-stress-echocardiography-in-order-to-carry-on-the-ischemic-cascade-role-in-the-diagnosis-of-coronary-artery-disease-and-prognostic-value
#5
Piergiuseppe Piovesana, Pietro Offelli, Francesca D'Ambrosio, Fabio De Conti, Virginia Scarabeo, Marco Panfili, Francesco Antonini-Canterin
BACKGROUND: Sensitivity of dipyridamole stress echocardiography (SE) is often lower than required. The aim of the present work is the evaluation of the association of dipyridamole and exercise echocardiography. METHODS: From June 2007 to January 2011, 259 consecutive patients referred to Camposampiero Echocardiography Laboratory underwent SE. Stress protocol started with dipyridamole infusion of 0.84 mg/kg over 6 min. In patients without a new dyssynergy after dipyridamole, SE was carried on with supine exercise...
October 2016: Journal of Cardiovascular Echography
https://www.readbyqxmd.com/read/28462120/high-density-lipoprotein-cholesterol-hdl-c-in-cardiovascular-disease-effect-of-exercise-training
#6
REVIEW
Nayoung Ahn, Kijin Kim
Decreases in high-density lipoprotein cholesterol (HDL-C) levels are associated with an increased risk of coronary artery disease (CAD), whereas increased HDL-C levels are related to a decreased risk of CAD and myocardial infarction. Although HDL prevents the oxidation of low-density lipoprotein under normal conditions, it triggers a structural change, inhibiting antiarteriosclerotic and anti-inflammatory functions, under pathological conditions such as oxidative stress, inflammation, and diabetes. HDL can transform into various structures based on the quantitative reduction and deformation of apolipoprotein A1 and is the primary cause of increased levels of dysfunctional HDL, which can lead to an increased risk of CAD...
September 2016: Integr Med Res
https://www.readbyqxmd.com/read/28434533/performance-of-fixed-heart-rate-increment-targets-of-20-vs-30-beats-per-minute-for-exercise-rehabilitation-prescription-in-outpatients-with-heart-failure
#7
Jennifer L Reed, Angelica Z Blais, Marja-Leena Keast, Andrew L Pipe, Robert D Reid
BACKGROUND: Patients with heart failure (HF) should exercise at 40%-60% heart rate reserve (HRR) during the first 3 weeks of an outpatient cardiac rehabilitation (CR) program and at 50%-80% HRR thereafter. Arbitrary methods to prescribe exercise intensity such as resting HR (RHR) plus 20 or 30 beats per minute (bpm) (RHR + 20 or RHR + 30) are recommended for inpatients after a myocardial infarction or those recovering from heart surgery. This approach has been repurposed by outpatient CR programs to prescribe exercise intensity for patients with HF, yet its efficacy has not been evaluated...
February 2, 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28422851/relation-between-serum-myokines-and-phase-ii-cardiac-rehabilitation
#8
Der-Sheng Han, Ming-Yen Hsiao, Tyng-Guey Wang, Ssu-Yuan Chen, Wei-Shiung Yang
Patients with coronary heart disease or acute myocardial infarction after cardiac catheterization with stenting referred for phase II cardiac rehabilitation (CR) were grouped according to their preference. Cardio-pulmonary exercise testing (CPET) was used to determine oxygen uptake ((Equation is included in full-text article.)) at peak exercise and anaerobic threshold (AT). The control patients received counseling only while the experiment group received 36 sessions of CR in 3 to 6 months. Exercise physiology parameters and serum myokines (myostatin, insulin-like growth factor-1 (IGF-1), and interleukin-6 (IL-6) were measured pre- and postrehabilitation...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28410336/improved-oxygen-uptake-efficiency-slope-in-acute-myocardial-infarction-patients-after-early-phase-i-cardiac-rehabilitation
#9
Yun-Jeng Tsai, Min-Hui Li, Chia-Hsin Chen, Sheng-Hui Tuan, Yi-Jen Chen, Ko-Long Lin
A predischarge submaximal exercise test is often recommended after acute myocardial infarction (AMI) as part of phase I cardiac rehabilitation. In this study, a submaximal exercise parameter, oxygen uptake efficiency slope (OUES), was used to monitor the benefit of early mobilization within 48 h after AMI. An early mobilization protocol within 48 h after AMI has been initiated since 1 September 2012 in our center. Patients with onset time of AMI within 1 year before and 1 year after initiation of the early mobilization protocol were recruited for comparisons...
April 13, 2017: International Journal of Rehabilitation Research. Revue Internationale de Recherches de Réadaptation
https://www.readbyqxmd.com/read/28402023/heart-rate-recovery-improvement-in-patients-following-acute-myocardial-infarction-exercise-training-%C3%AE-blocker-therapy-or-both
#10
Wladimir M Medeiros, Fabio A de Luca, Alcides R de Figueredo Júnior, Felipe A R Mendes, Carlos Gun
Heart rate recovery (HRR) is a strong mortality predictor. Exercise training (ET) and β-blocker therapy have significant impact on the HRR of patients following myocardial infarction (MI). However, the combination of ET and β-blocker therapy, as well as its effectiveness in patients with a more compromised HRR (≤12 bpm), has been under-studied. Male patients (n = 64) post-MI were divided: Training + β-blocker (n = 19), Training (n = 15), β-blocker (n = 11) and Control (n = 19). Participants performed an ergometric test before and after 3 months of intervention...
April 12, 2017: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/28399634/prognostic-impact-of-physical-activity-prior-to-myocardial-infarction-case-fatality-and-subsequent-risk-of-heart-failure-and-death
#11
Hanne Ejlersen, Zorana Jovanovic Andersen, My Catarina von Euler-Chelpin, Pernille Palm Johansen, Peter Schnohr, Eva Prescott
Background Animal studies indicate that exercise reduces myocardial damage during myocardial infarction by ischaemic preconditioning. Aim To determine from a prospective cohort study whether the level of leisure time physical activity (LTPA) in humans prior to myocardial infarction could modify the course of myocardial infarction by reducing case fatality and the subsequent risk of heart failure and mortality. Methods A total of 14,223 participants in the Copenhagen City Heart Study were assessed at baseline in 1976-1978; 1,664 later developed myocardial infarction (mean age at myocardial infarction 70...
January 1, 2017: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/28392370/out-of-hospital-cardiac-arrest-survivors-with-cognitive-impairments-have-lower-exercise-capacity
#12
Liesbeth W Boyce, Carlien C Reinders, Gerard Volker, Esther Los, Henk J van Exel, Thea P M Vliet Vlieland, Paulien H Goossens
BACKGROUND: Hypoxic brain injury is described in up to 40% of survivors after out-of-hospital cardiac arrest (OHCA). Besides cognitive impairments, lack of circulation may also affect exercise capacity. It is not known if exercise capacity of patients with cognitive impairments differs from other OHCA survivors. METHODS: This retrospective cohort study included patients ≥18 years with myocardial infarction (MI) as cause of OHCA admitted for cardiac rehabilitation between February 2011 and April 2014...
June 2017: Resuscitation
https://www.readbyqxmd.com/read/28385304/functional-testing-or-coronary-computed-tomography-angiography-in-patients-with-stable%C3%A2-coronary-artery-disease
#13
Mads E Jørgensen, Charlotte Andersson, Bjarne L Nørgaard, Jawdat Abdulla, Jacqueline B Shreibati, Christian Torp-Pedersen, Gunnar H Gislason, Richard E Shaw, Mark A Hlatky
BACKGROUND: The choice of either anatomical or functional noninvasive testing to evaluate suspected coronary artery disease might affect subsequent clinical management and outcomes. OBJECTIVES: This study analyzed the association of initial noninvasive cardiac testing in outpatients with stable symptoms, with subsequent use of medications, invasive procedures, and clinical outcomes. METHODS: We studied patients enrolled in a Danish nationwide register who underwent initial noninvasive cardiac testing with either coronary computed tomography angiography (CTA) or functional testing (exercise electrocardiography or nuclear stress testing) from 2009 to 2015...
April 11, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28373523/fire-simulation-and-cardiovascular-health-in-firefighters
#14
RANDOMIZED CONTROLLED TRIAL
Amanda L Hunter, Anoop S V Shah, Jeremy P Langrish, Jennifer B Raftis, Andrew J Lucking, Mairi Brittan, Sowmya Venkatasubramanian, Catherine L Stables, Dominik Stelzle, James Marshall, Richard Graveling, Andrew D Flapan, David E Newby, Nicholas L Mills
BACKGROUND: Rates of myocardial infarction in firefighters are increased during fire suppression duties, and are likely to reflect a combination of factors including extreme physical exertion and heat exposure. We assessed the effects of simulated fire suppression on measures of cardiovascular health in healthy firefighters. METHODS: In an open-label randomized crossover study, 19 healthy firefighters (age, 41±7 years; 16 males) performed a standardized training exercise in a fire simulation facility or light duties for 20 minutes...
April 4, 2017: Circulation
https://www.readbyqxmd.com/read/28330378/effects-of-exercise-training-on-kinin-receptors-expression-in-rats-with-myocardial-infarction
#15
Mei Shen, Min Yu, Jingya Li, Li Ma
OBJECTIVES: The objective of this study is to determine the role of kinin B1 and B2 receptors in exercise-induced cardiac muscle angiogenesis. METHOD: Thirty Wistar rats were randomly assigned to the control group, the myocardial infarction group and the exercise training group (myocardial infarction model was made and received 30 min exercise training on a treadmill). After 4 weeks of experiment, cardiac muscle was harvested. RESULTS: B1 and B2 receptor mRNA and protein levels in the exercise-training group were significantly higher than those in the myocardial infarction group, which were higher than those in the control group...
March 23, 2017: Archives of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28329376/comparison-of-the-prognostic-value-of-negative-non-invasive-cardiac-investigations-in-patients-with-suspected-or-known-coronary-artery-disease-a-meta-analysis
#16
Martijn W Smulders, Caroline Jaarsma, Patricia J Nelemans, Sebastiaan C A M Bekkers, Jan Bucerius, Tim Leiner, Harry J G M Crijns, Joachim E Wildberger, Simon Schalla
Aims: To compare the prognostic value of negative non-invasive cardiac investigations (coronary computed tomographic angiography [CCTA], cardiovascular magnetic resonance [CMR], exercise electrocardiographic testing [EET], positron emission tomography [PET], stress-echocardiography [SE], and single-photon emission tomography [SPECT]) in patients with suspected or known coronary artery disease (CAD) and to explore the effect of adjustment for population event risk and presence of CAD. Methods and results: MEDLINE/PubMed database, EMBASE and Cochrane Library were searched from January-1990 to April-2015 for studies reporting annual event rates (AER) of myocardial infarction (MI) and cardiac death...
February 27, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28303967/effects-of-exercise-based-cardiac-rehabilitation-in-patients-after-percutaneous-coronary-intervention-a-meta-analysis-of-randomized-controlled-trials
#17
Xinyu Yang, Yanda Li, Xiaomeng Ren, Xingjiang Xiong, Lijun Wu, Jie Li, Jie Wang, Yonghong Gao, Hongcai Shang, Yanwei Xing
In this study, we assessed the effect of rehabilitation exercise after percutaneous coronary intervention (PCI) in patients with coronary heart disease (CHD). We performed a meta-analysis to determine the effects of exercise in patients after PCI. The Cochrane Central Register of Controlled Trials (CENTRAL), PubMed, the Embase database, China National Knowledge Internet (CNKI), China Biology Medicine (CBM), and the Wanfang Database were searched for randomized controlled trials (RCTs). The key words used for the searches were PCI, exercise, walking, jogging, Tai Chi, and yoga...
March 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28293100/adenosine-a2a-receptor-agonist-prevents-cardiac-remodeling-and-dysfunction-in-spontaneously-hypertensive-male-rats-after-myocardial-infarction
#18
Jaqueline S da Silva, Daniele Gabriel-Costa, Roberto T Sudo, Hao Wang, Leanne Groban, Emanuele B Ferraz, José Hamilton M Nascimento, Carlos Alberto M Fraga, Eliezer J Barreiro, Gisele Zapata-Sudo
BACKGROUND: This work evaluated the hypothesis that 3,4-methylenedioxybenzoyl-2-thienylhydrazone (LASSBio-294), an agonist of adenosine A2A receptor, could be beneficial for preventing cardiac dysfunction due to hypertension associated with myocardial infarction (MI). METHODS: Male spontaneously hypertensive rats (SHR) were randomly divided into four groups (six animals per group): sham-operation (SHR-Sham), and myocardial infarction rats (SHR-MI) were treated orally either with vehicle or LASSBio-294 (10 and 20 mg...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28289644/quality-of-life-and-physical-ability-changes-after-hospital-based-cardiac-rehabilitation-in-patients-with-myocardial-infarction
#19
Byung Joo Lee, Jin Young Go, Ae Ryung Kim, Seong Min Chun, Minhyuk Park, Dong Heon Yang, Hun Sik Park, Tae-Du Jung
OBJECTIVE: To evaluate the effect of hospital-based cardiac rehabilitation (CR) on quality of life (QOL) and physical ability in patients with myocardial infarction (MI). METHODS: Patients with MI who were referred to the Cardiac Health and Rehabilitation Center 2 weeks after percutaneous coronary intervention were divided into CR and non-CR groups. The CR group performed supervised exercises 3 times a week for 2 months. QOL assessment, using the 36-item Short-Form Health Survey (SF-36) and physical ability evaluation were performed at the beginning and end of CR...
February 2017: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28255936/sudden-arrhythmic-death-during-exercise-a-post-mortem-genetic-analysis
#20
Oscar Campuzano, Olallo Sanchez-Molero, Anna Fernandez, Irene Mademont-Soler, Monica Coll, Alexandra Perez-Serra, Jesus Mates, Bernat Del Olmo, Ferran Pico, Laia Nogue-Navarro, Georgia Sarquella-Brugada, Anna Iglesias, Sergi Cesar, Esther Carro, Juan Carlos Borondo, Josep Brugada, Josep Castellà, Jordi Medallo, Ramon Brugada
BACKGROUND: Sudden cardiac death is a natural and unexpected death that occurs within 1 h of the first symptom. Most sudden cardiac deaths occur during exercise, mostly as a result of myocardial infarction. After autopsy, some cases, especially in the young, are diagnosed as cardiomyopathies or remain without a conclusive cause of death. In both situations, genetic alterations may explain the arrhythmia. OBJECTIVE: Our aim was to identify a genetic predisposition to sudden cardiac death in a cohort of post-mortem cases of individuals who died during exercise, with a structurally normal heart, and were classified as arrhythmogenic death...
March 3, 2017: Sports Medicine
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