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 second [FEV(1)] and forced ventilatory capacity [FVC]). Increased airway resistance by increasing the work of breathing might contribute to exercise intolerance in CHF. METHODS:Impulse oscillometry (IOS) measures airway resistance and lung compliance independently of respiratory muscle strength and patient compliance. Sound waves of varying frequencies are sent into the lungs and the amplitude and phase shift of the reflected waves give a measure of airway resistance (R) and reactance (X). Twenty-three CHF patients and 18 controls underwent peak exercise testing with metabolic gas analysis and had airway resistance assessment using the Jaeger (Würtzberg, Germany) IOS system. RESULTS:Patients had a lower pV(O(2)) (18.7 (4.0) v 39.2 (8.3) mL x kg x min; P < .0001), elevated V(E)/V(CO(2)) slope (41.6 (8.1) v 27.4 (2.9)), and lower FEV(1) (2.4 (0.4) v 3.2 (0.7) L/min; P = .0001) and FVC (3.3 (0.7) v 4.1 (1.1) L; P < .005) than controls. R and X correlated with spirometric abnormalities and were different between patients and controls (R at 5 Hz 0.44 (0.16) v 0.30 (0.15) kPa (L/s); P < .005 and X at 5 Hz -0.16 (0.08) v -0.09 (0.08) kPa (L/s); P < .05). R at 5 Hz correlated with pV(O(2)) (0.46; P = .0025) and V(E)/V(CO(2)) slope (0.43; P < .05). CONCLUSION:CHF patients have elevated airway resistance and reduced reactance measured with IOS compared with control subjects.
journal_name
J Card Failjournal_title
Journal of cardiac failureauthors
Witte KK,Morice A,Clark AL,Cleland JGdoi
10.1054/jcaf.2002.126916keywords:
subject
Has Abstractpub_date
2002-08-01 00:00:00pages
225-31issue
4eissn
1071-9164issn
1532-8414pii
S1071916402000192journal_volume
8pub_type
杂志文章abstract：BACKGROUND:Left ventricular dilatation and elevated plasma natriuretic peptide levels predict adverse prognosis and the development of congestive heart failure after myocardial infarction. Altered matrix metalloproteinase (MMP) activity has been implicated in the structural changes associated with development of heart ...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1016/j.cardfail.2003.11.003
更新日期：2004-08-01 00:00:00
abstract：BACKGROUND:We investigated the effects of the dipeptidyl peptidase 4 inhibitor teneligliptin on cardiac function and hemodynamics during heart failure in hypertensive model rats. METHODS AND RESULTS:Fifty-five male Dahl salt-sensitive rats were divided into 4 groups: control group (0.3% NaCl chow; n = 13), hypertensio...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1016/j.cardfail.2017.09.001
更新日期：2018-01-01 00:00:00
abstract：BACKGROUND:In vivo administration of norepinephrine fails to cause beta-adrenergic receptor desensitization. However, short-term exposure of cultured cells to norepinephrine induces the phenomenon in vitro. We sought to identify the local regulatory mechanisms responsible for in vivo beta-adrenergic receptor desensitiz...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1054/jcaf.2000.19223
更新日期：2000-12-01 00:00:00
abstract：BACKGROUND:There are few data on the prevalence and pattern of complementary and alternative medicine (CAM) supplement use among people with chronic heart failure (CHF). The aim of this survey was to characterize the prevalence, pattern, and reasons for use of CAM supplements among those with CHF. METHODS AND RESULTS:...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1016/j.cardfail.2005.06.427
更新日期：2005-10-01 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: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:In patients with heart failure and preserved ejection fraction (HF-PEF) randomized in the Americas as part of the Treatment of Preserved Cardiac Function Heart Failure with an Aldosterone Antagonist (TOPCAT) trial, treatment with spironolactone enhanced the risk of hyperkalemia but reduced the risk of hypoka...
journal_title：Journal of cardiac failure
pub_type： 杂志文章,多中心研究,随机对照试验
doi：10.1016/j.cardfail.2018.03.002
更新日期：2018-05-01 00:00:00
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 ox...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1016/j.cardfail.2013.08.002
更新日期：2013-09-01 00:00:00
abstract：:Since the introduction of biomarkers in the late 1980s, considerable research has been dedicated to their validation and application. As a result, many biomarkers are now commonly used in clinical practice. However, the role of biomarkers in the prediction of right ventricular failure (RVF) and in the prognostication ...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1016/j.cardfail.2019.09.007
更新日期：2020-09-01 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:Survival of patients with congenital heart defects including increased right ventricular pressure load (ie, tetralogy of Fallot) or pulmonary hypertension is dependent on the function of the right ventricle (RV). RV remodeling has several effects with progressive transition from compensated status to heart f...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1016/j.cardfail.2020.02.006
更新日期：2020-07-01 00:00:00
abstract：OBJECTIVE:In chronic heart failure (HF), diuretic doses increase as the disease progresses, often after hospitalization for instability, and have been associated with worsening renal function and increased mortality. METHODS AND RESULTS:A prospective observational analysis of 183 patients in an advanced HF clinic stra...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1016/j.cardfail.2008.01.015
更新日期：2008-06-01 00:00:00
abstract：BACKGROUND:Several echocardiographic parameters are currently used to evaluate left ventricular (LV) filling pressure. However, these parameters are not always consistent in the clinical setting. We aimed to determine a novel parameter by multiplying log B-type natriuretic peptide (lnBNP) and the ratio of mitral inflow...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1016/j.cardfail.2017.10.008
更新日期：2018-01-01 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:The present study examined the influence of rapid intravenous fluid loading (RFL) on airway structure and pulmonary vascular volumes using computed tomography imaging and the subsequent impact on pulmonary function in healthy adults (n = 16). METHODS AND RESULTS:Total lung capacity (DeltaTLC = -6%), forced ...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1016/j.cardfail.2009.08.005
更新日期：2010-02-01 00:00:00
abstract：BACKGROUND:The effect of elevated heart rate (HR) on outcomes after heart transplantation (HT) has not been well established. The aim of this study was to assess predictors of elevated HR following HT and its impact on outcomes. METHODS AND RESULTS:We retrospectively evaluated 394 patients who underwent HT at 2 academ...
journal_title：Journal of cardiac failure
pub_type： 杂志文章,多中心研究
doi：10.1016/j.cardfail.2019.01.009
更新日期：2019-04-01 00:00:00
abstract：:The aim of this study was to compare the effects on left ventricular function and exercise tolerance of a selective beta-antagonist (atenolol) with those of another selective beta 1-antagonist with vasodilator properties (nebivolol) in patients with ischemic left ventricular dysfunction but no overt congestive heart f...
journal_title：Journal of cardiac failure
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/s1071-9164(96)80004-2
更新日期：1996-03-01 00:00:00
abstract：BACKGROUND:There are little data on the optimization of high-intensity aerobic interval exercise (HIIE) protocols in patients with chronic heart failure (CHF). Therefore, we compared acute cardiopulmonary responses to 4 different HIIE protocols to identify the optimal one. METHODS AND RESULTS:Twenty men with stable sy...
journal_title：Journal of cardiac failure
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.cardfail.2011.10.010
更新日期：2012-02-01 00:00:00
abstract：BACKGROUND:Donor-transmitted atherosclerosis (DTA) and rapidly progressive cardiac allograft vasculopathy (CAV) at 1 year are intravascular ultrasound (IVUS)-derived measures shown to predict adverse cardiovascular outcomes in the setting of early generation immunosuppressive agents. Given the paucity of data on the pr...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1016/j.cardfail.2020.12.012
更新日期：2021-01-20 00:00:00
abstract：BACKGROUND:The importance of repeated clinical assessments of patients with heart failure is widely accepted. The frequency of such follow-up is not established and is likely to depend on the natural history and variability of patients' health status and the availability and use of appropriate treatments. METHODS AND ...
journal_title：Journal of cardiac failure
pub_type： 杂志文章,多中心研究
doi：10.1016/j.cardfail.2003.12.008
更新日期：2004-10-01 00:00:00
abstract：BACKGROUND:Tissue kallikrein is a serine proteinase that generates the vasoactive kinin peptide, which produces vasodilatory, angiogenic, and antiapoptotic effects. In this study, we investigated the effect of a stable supply of kallikrein and kinin on ventricular remodeling and blood vessel growth in rats after myocar...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1016/j.cardfail.2007.04.009
更新日期：2007-09-01 00:00:00
abstract：BACKGROUND:Numerous models predicting the risk of incident heart failure (HF) have been developed; however, evidence of their methodological rigor and reporting remains unclear. This study critically appraises the methods underpinning incident HF risk prediction models. METHODS AND RESULTS:EMBASE and PubMed were searc...
journal_title：Journal of cardiac failure
pub_type： 杂志文章,评审
doi：10.1016/j.cardfail.2017.03.005
更新日期：2017-09-01 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:Idiopathic giant cell myocarditis (GCM) is an uncommon cause of cardiac failure distinguished clinically from lymphocytic myocarditis by rapidly progressive heart failure, arrhythmias, and heart block. Unlike fulminant lymphocytic myocarditis, patients with fulminant cardiac failure caused by GCM may respond...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1054/jcaf.2002.32196
更新日期：2002-04-01 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：BACKGROUND:Limited data exist on outcomes in patients ≥70 years of age supported with the use of continuous-flow left ventricular assist devices (LVADs). METHODS:Data on 1149 continuous-flow LVAD recipients was queried from the Mechanical Circulatory Support Research Network. Groups were assigned based on age: ≥70 yea...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1016/j.cardfail.2016.10.004
更新日期：2016-12-01 00:00:00
abstract：BACKGROUND:Some controlled clinical trials showed a beneficial effect of beta-blockers on symptoms, exercise tolerance, and left ventricular function in dilated cardiomyopathy. The purpose of this study was to investigate if there are clinical variables at baseline that could predict a favorable response to long-term m...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1016/s1071-9164(96)80027-3
更新日期：1996-06-01 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:Endothelin-1 (ET-1) is a potent vasoconstrictor peptide elaborated by many cell types. Plasma ET-1 levels are significantly augmented in patients and experimental animals with heart failure. Enhanced levels of ET-1 may contribute to myocardial depression and alterations in sympathetic nerve activity in the s...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1016/s1071-9164(00)00012-9
更新日期：2000-03-01 00:00:00
abstract：:In most mammalian species, activation of myocardial endothelin as well as alpha1-adrenergic and angiotensin receptors leads to an increase in contractile function and myocardial cell hypertrophy, in association with acceleration of PI hydrolysis and with resultant production of IP3 and diacylglycerol. Therefore, these...
journal_title：Journal of cardiac failure
pub_type： 杂志文章
doi：10.1016/s1071-9164(96)80058-3
更新日期：1996-12-01 00:00:00
