Abstract：
BACKGROUND:A hallmark characteristic of heart failure (HF) is reduced physical activity (PA) patterns. The relationship between key cardiopulmonary exercise testing (CPX) variables and PA patterns has not been investigated. Therefore, we evaluated PA patterns in patients with ischemic HF and its relationship to peak oxygen consumption (VO2), the minute ventilation/carbon dioxide production (VE/VCO2) slope, and the oxygen uptake efficiency slope (OUES). METHODS AND RESULTS:Sixteen patients with HF wore an accelerometer for six days to measure total steps/day as well as percentage of time at light, moderate, and vigorous PA. Symptom-limited CPX was performed on a treadmill using a ramping protocol. Total steps correlated with VO2 (r = 0.64 P < .05), the VE/VCO2 slope (r = -0.72; P < .05), and the OUES (0.63; P < .05). The percentage of time at light-intensity PA correlated with the VE/VCO2 slope (r = 0.58; P < .05) and the OUES (r = -0.51; P < .05). The percentage of time at vigorous-intensity PA correlated with peak VO2 (r = 0.55; P < .05) and the VE/VCO2 slope (r = -0.52; P < .05). CONCLUSIONS:PA assessed by accelerometer is significantly associated with key CPX variables in patients with HF.
journal_name
J Card Failjournal_title
Journal of cardiac failureauthors
da Silva VZ,Lima AC,Vargas FT,Cahalin LP,Arena R,Cipriano G Jrdoi
10.1016/j.cardfail.2013.08.002subject
Has Abstractpub_date
2013-09-01 00:00:00pages
635-40issue
9eissn
1071-9164issn
1532-8414pii
S1071-9164(13)00569-1journal_volume
19pub_type
杂志文章abstract：BACKGROUND:Empirical evidence supporting the benefits of dietary recommendations for patients with advanced heart failure is scarce. We prospectively evaluated the relation of dietary habits to pre-transplant clinical outcomes in the multisite observational Waiting for a New Heart Study. METHODS AND RESULTS:A total of...
journal_title：Journal of cardiac failure
pub_type： 杂志文章,多中心研究
doi：10.1016/j.cardfail.2013.02.004
更新日期：2013-04-01 00:00:00
abstract：BACKGROUND:Previous studies have shown a paradox of lower mortality in black compared with white patients after hospitalization for heart failure, in contrast to the overall higher mortality reported for nonhospitalized black patients with heart failure. We examined racial differences in factors contributing to hospita...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1016/j.cardfail.2004.04.002
更新日期：2005-02-01 00:00:00
abstract：BACKGROUND:Patients with chronic heart failure (CHF) complain of breathlessness and fatigue on exertion, have reduced peak oxygen consumption (pV(O(2))), and an increased ventilatory response to exercise (V(E)/V(CO(2)) slope). These limitations correlate with abnormalities of spirometry (forced expiratory volume in 1 s...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1054/jcaf.2002.126916
更新日期：2002-08-01 00:00:00
abstract：BACKGROUND:The total artificial heart (TAH) replaces the heart with 2 pneumatic pumps and 4 tilting disk mechanical valves. It was hypothesized that patients receiving TAH support have persistent hemolysis that resolves after heart transplantation (HT). METHODS AND RESULTS:Hematocrit (HCT) was compared in patients on ...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1016/j.cardfail.2012.03.003
更新日期：2012-06-01 00:00:00
abstract：BACKGROUND:Since coronavirus disease 2019 (COVID-19) was first identified in Wuhan, China, in December 2019, the number of cases has risen exponentially. Clinical characteristics and outcomes among patients with orthotopic heart transplant (OHT) with COVID-19 remain poorly described. METHODS:We performed a retrospecti...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1016/j.cardfail.2020.05.008
更新日期：2020-06-01 00:00:00
abstract：BACKGROUND:Heightened activity of the sympathetic nervous system in heart failure patients is a major contributor to disease progression and death. I-123 metaiodobenzylguanidine (MIBG) provides an accurate, noninvasive method to assess cardiac sympathetic nerve activity. METHODS:Thirty-seven patients with New York Hea...
journal_title：Journal of cardiac failure
pub_type： 临床试验,杂志文章
doi：10.1054/s1071-9164(03)00134-9
更新日期：2003-10-01 00:00:00
abstract：:The authors have previously shown that the resistance ratio (RR) is increased in patients with congestive heart failure (CHF), and that the patients with the highest RRs have an increased mortality. The authors hypothesized that CHF patients with the lowest maximum oxygen consumption and the most impaired Weber functi...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1016/1071-9164(94)90005-1
更新日期：1994-10-01 00:00:00
abstract：BACKGROUND:The definition of response to cardiac resynchronization therapy (CRT) remains controversial, with variable rates of response depending on the criteria used. Our aim was to analyze the impact of CRT on diastolic function in different degrees of response, particularly in patients with positive clinical but no ...
journal_title：Journal of cardiac failure
pub_type： 更正并重新发布的文章,杂志文章
doi：10.1016/j.cardfail.2013.11.001
更新日期：2013-12-01 00:00:00
abstract：BACKGROUND:For over a century, the dog model has been used widely in research studying cardiovascular physiology pertinent to humans. It has been specially applied, over the past 2 decades, in research on the pathophysiology and treatment of left ventricular (LV) remodeling and heart failure. METHODS AND RESULTS:Becau...
journal_title：Journal of cardiac failure
pub_type： 杂志文章,评审
doi：10.1054/jcaf.2002.129274
更新日期：2002-12-01 00:00:00
abstract：BACKGROUND:Differentiating between constrictive pericarditis (CP) and restrictive cardiomyopathy (RCMP) is difficult because of similar clinical and hemodynamic presentation. Brain natriuretic peptide (BNP) has been reported a useful noninvasive biomarker to differentiate CP from RCMP; however, its utility in patients ...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1016/j.cardfail.2007.05.001
更新日期：2007-10-01 00:00:00
abstract：BACKGROUND:Therapies for heart failure (HF) with a low ejection fraction (EF) have delayed disease progression and prolonged survival, but the implications of these therapies on the end stages of HF have not been examined. METHODS AND RESULTS:Patients seen by the Brigham and Women's cardiomyopathy service with an EF <...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1016/j.cardfail.2005.08.001
更新日期：2006-02-01 00:00:00
abstract：BACKGROUND:Left ventricular remodeling after myocardial infarction is a key component of heart failure and it has long been postulated that it may result from increased wall stress. It has recently been suggested that an injectable, non-degradable polymer may limit pathological remodeling in a manner analogous to that ...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1016/j.cardfail.2009.03.003
更新日期：2009-09-01 00:00:00
abstract：BACKGROUND:We recently reported that serum levels of pentosidine, one of the well-defined advanced glycation end products (AGE), was an independent prognostic factor for heart failure. Receptor for AGEs (RAGE) is expressed in a variety of tissues, and RAGE has a C-truncated secretory isoform of the receptor protein, te...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1016/j.cardfail.2007.10.019
更新日期：2008-03-01 00:00:00
abstract：BACKGROUND:Sympathetic adrenergic stimulation and the renin-angiotensin-aldosterone system are highly elevated in right heart failure. We evaluated if treatment with the adrenergic receptor blocker bisoprolol or the angiotensin II receptor blocker losartan could prevent the progression of right ventricular (RV) hypertr...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1016/j.cardfail.2014.08.003
更新日期：2014-11-01 00:00:00
abstract：BACKGROUND:Acute coronary syndromes (ACS) may precipitate up to a third of acute heart failure (AHF) cases. We assessed the characteristics, initial management, and survival of AHF patients with (ACS-AHF) and without (nACS-AHF) concomitant ACS. METHODS AND RESULTS:Data from 620 AHF patients were analyzed in a prospect...
journal_title：Journal of cardiac failure
pub_type： 杂志文章,多中心研究
doi：10.1016/j.cardfail.2014.07.008
更新日期：2014-10-01 00:00:00
abstract：BACKGROUND:Heart failure (HF) dramatically affects the lives of both patients and their caregivers, yet limited research exists examining the relationship between emotional well-being of HF patients and their caregivers. Therefore, we conducted a study to (1) describe and compare the emotional well-being of HF patients...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1054/jcaf.2002.128005
更新日期：2002-10-01 00:00:00
abstract：BACKGROUND:Heart failure (HF) guidelines recommend treatment with multiple medications to improve survival, functioning, and quality of life. Yet, HF treatments can be costly, resulting in significant economic burden for some patients. To date, there are few data on the impact of patients' perceived difficulties in aff...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1016/j.cardfail.2006.03.004
更新日期：2006-06-01 00:00:00
abstract：BACKGROUND:Development of heart failure greatly reduces life expectancy. Accurate estimates of the risk of dying are needed in clinical practice and for risk adjustment in observational studies. A relatively simple risk score has been developed to determine the risk of dying within 1-year of an admission for heart fail...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1016/j.cardfail.2006.02.004
更新日期：2006-05-01 00:00:00
abstract：:Heart failure (HF) is a syndrome characterized by high mortality, frequent hospitalization, reduced quality of life, and a complex therapeutic regimen. Knowledge about HF is accumulating so rapidly that individual clinicians may be unable to readily and adequately synthesize new information into effective strategies o...
journal_title：Journal of cardiac failure
pub_type： 杂志文章,实务指引
doi：10.1016/j.cardfail.2005.11.005
更新日期：2006-02-01 00:00:00
abstract：BACKGROUND:Congestive heart failure (CHF) and atrial fibrillation (AF), both of which cause morbidity and mortality, are mutually promoting diseases. We aimed to evaluate surgical AF ablation in CHF. METHODS AND RESULTS:Among 212 patients (age 69 +/- 8.8 years, 87% with persistent AF) undergoing concomitant left atria...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1016/j.cardfail.2007.04.011
更新日期：2007-09-01 00:00:00
abstract：BACKGROUND:Although substantial effort has been devoted to reducing readmissions among heart failure (HF) patients, little is known about factors identified by patients and caregivers that may contribute to readmissions. The goal of this study was to compare the perspectives of HF patients, their caregivers, and their ...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1016/j.cardfail.2015.10.011
更新日期：2016-03-01 00:00:00
abstract：BACKGROUND:Sleep-disordered breathing (SDB) is common in patients with reduced ejection fraction (EF). However, little is known about the prevalence of SDB in a general heart failure population including patients with preserved EF (HFPEF). METHODS:We prospectively enrolled stable heart failure outpatients from our hea...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1016/j.cardfail.2011.01.013
更新日期：2011-05-01 00:00:00
abstract：BACKGROUND:Recent studies have suggested a high prevalence of cardiac amyloidosis (CAm) in heart failure (HF) patients. CAm might be underdiagnosed owing to low clinical suspicion. METHODS AND RESULTS:We performed retrospective analysis of 259 patients with HF and ejection fraction (EF) ≥50% referred for endomyocardia...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1016/j.cardfail.2016.12.006
更新日期：2017-04-01 00:00:00
abstract：BACKGROUND:Altering the renin-angiotensin aldosterone system improve mortality in heart failure (HF) in part through an improvement in nitric oxide (NO)-mediated endothelial function. This study examined if spironolactone affects endothelial nitric oxide synthase (eNOS) and NO-mediated vasorelaxation in HF. METHODS AN...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1016/j.cardfail.2006.01.002
更新日期：2006-04-01 00:00:00
abstract：BACKGROUND:Worsening renal function (WRF) and hypokalemia related to diuretic use for acute decompensated heart failure (ADHF) are common and associated with poor prognosis. Low-dose dopamine infusion improves renal perfusion; its effect on diuresis or renal function specifically in ADHF is not known. METHODS AND RESU...
journal_title：Journal of cardiac failure
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.cardfail.2010.07.246
更新日期：2010-12-01 00:00:00
abstract：BACKGROUND:Functional electrical stimulation (FES) improves exercise capacity and quality of life in chronic heart failure (CHF) patients. However, there is no evidence regarding the effectiveness of this treatment modality according to the severity of CHF. This study compares the effectiveness of FES on exercise capac...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1016/j.cardfail.2009.10.023
更新日期：2010-03-01 00:00:00
abstract：BACKGROUND:Studies have shown that neither ejection fraction nor hemodynamic abnormalities during exercise in chronic heart failure (HF) correlate with symptoms of fatigue and exhaustion. The concept that exercise limitation in patients with chronic HF is due to abnormal hemodynamics during exercise has been revised to...
journal_title：Journal of cardiac failure
pub_type： 杂志文章,评审
doi：10.1016/j.cardfail.2005.03.002
更新日期：2005-09-01 00:00:00
abstract：BACKGROUND:Recent advances in cardiac multi-detector computed tomography (MDCT) technology now permits entire coronary tree evaluation in a single breath hold with submillimeter slice collimation and improved temporal resolution. METHODS AND RESULTS:Besides excellent correlation with invasive angiogram for the detecti...
journal_title：Journal of cardiac failure
pub_type： 杂志文章,评审
doi：10.1016/j.cardfail.2006.11.014
更新日期：2007-04-01 00:00:00
abstract：BACKGROUND:The role of matrix metalloproteinases (MMPs) polymorphisms on heart failure (HF) susceptibility, phenotypic characteristics, and prognosis has been poorly explored. METHODS AND RESULTS:We studied 313 HF patients with left ventricular systolic dysfunction and 367 healthy control subjects. Genotyping of MMP-1...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1016/j.cardfail.2010.09.017
更新日期：2011-02-01 00:00:00
abstract：BACKGROUND:Coenzyme Q10 (CoQ10) is essential for ATP generation and has antioxidant properties. Decreased CoQ10 levels have been reported in human heart failure (CHF), but it remains unclear if this is a conserved feature of CHF. The objective of the study was to determine if tachycardia-induced CHF in the dog is assoc...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1054/jcaf.2000.8839
更新日期：2000-09-01 00:00:00
