Abstract:
OBJECTIVES:This was a prospective, randomized, controlled study designed to determine the effect of resistance exercise training on bone metabolism in heart transplant recipients. BACKGROUND:Osteoporosis frequently complicates heart transplantation. No preventative strategy is generally accepted for glucocorticoid-induced bone loss. METHODS:Sixteen male heart transplant recipients were randomly assigned to a resistance exercise group that trained for 6 months (mean [+/- SD] age 56 +/- 6 years) or a control group (mean age 52 +/- 10 years) that did not perform resistance exercise. Bone mineral density (BMD) of the total body, femur neck and lumbar spine (L2 to L3) was measured by dual-energy X-ray absorptiometry before and 2 months after transplantation and after 3 and 6 months of resistance exercise or a control period. The exercise regimen consisted of lumbar extension exercise (MedX) performed 1 day/week and variable resistance exercises (Nautilus) performed 2 days/week. Each exercise consisted of one set of 10 to 15 repetitions performed to volitional fatigue. RESULTS:Pretransplantation baseline values for regional BMD did not differ in the control and training groups. Bone mineral density of the total body, femur neck and lumbar vertebra (L2 to L3) were significantly decreased below baseline at 2 months after transplantation in both the control (-3.3 +/- 1.3%, -4.5 +/- 2.8%, -12.7 +/- 3.2%, -14.8 +/- 3.1%, respectively). Six months of resistance exercise restored BMD of the whole body, femur neck and lumbar vertebra to within 1%, 1.9% and 3.6% of pretransplantation levels, respectively. Bone mineral density of the control group remained unchanged from the 2-month posttransplantation levels. CONCLUSIONS:Within 2 months after heart transplantation, approximately 3% of whole-body BMD is lost, mostly due to decreases in trabecular bone (-12% to -15% of lumbar vertebra). Six months of resistance exercise, consisting of low back exercise that isolates the lumbar spine and a regimen of variable resistance exercises, restores BMD toward pretransplantation levels. Our results suggest that resistance exercise is osteogenic and should be initiated early after heart transplantation.
journal_name
J Am Coll Cardioljournal_title
Journal of the American College of Cardiologyauthors
Braith RW,Mills RM,Welsch MA,Keller JW,Pollock MLdoi
10.1016/s0735-1097(96)00347-6subject
Has Abstractpub_date
1996-11-15 00:00:00pages
1471-7issue
6eissn
0735-1097issn
1558-3597pii
S0735-1097(96)00347-6journal_volume
28pub_type
临床试验,杂志文章,随机对照试验abstract:OBJECTIVES:We sought to determine the predictors of heart failure (HF) development in long-term survivors of myocardial infarction (MI). BACKGROUND:Modern strategies of acute MI care have resulted in an increasing proportion of survivors at heightened risk of future non-fatal events, including HF. METHODS:We assessed...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(03)01057-x
更新日期:2003-10-15 00:00:00
abstract:OBJECTIVES:We evaluated the prognostic value of dipyridamole stress cardiovascular magnetic resonance imaging (CMR) in patients with chest pain and known or suspected coronary artery disease. BACKGROUND:Stress perfusion CMR has been incorporated in daily practice. Data on its prognostic value are preliminary. METHODS...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2007.06.016
更新日期:2007-09-18 00:00:00
abstract:OBJECTIVES:This study sought to determine the association of chronic kidney disease (CKD) with high ankle brachial index (ABI) measurement and to compare its strength with that of CKD with a low ABI. BACKGROUND:CKD is an important risk factor for cardiovascular disease (CVD) events. A high ABI, a marker of lower extre...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2009.06.017
更新日期:2009-09-22 00:00:00
abstract::To evaluate the influence of left ventricular chamber stiffness and relaxation on Doppler echocardiographic indexes of diastolic function, 35 patients (mean age 60 +/- 12 years) were examined; 24 had coronary artery disease and 11 (Group I) had no cardiovascular disease. Micromanometer left ventricular pressure was re...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/0735-1097(89)90507-x
更新日期:1989-02-01 00:00:00
abstract:OBJECTIVES:The purpose of this study was to evaluate the prognostic value of community-based myocardial perfusion imaging (MPI) and to assess the incremental value of individual components of (99m)Tc-sestamibi single photon emission computed tomography (SPECT). BACKGROUND:Although the most rapid growth of MPI has been...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2003.07.041
更新日期:2004-01-21 00:00:00
abstract:OBJECTIVES:This study sought to determine whether ablation of complex fractionated atrial electrograms (CFAEs) after antral pulmonary vein isolation (APVI) further improves the clinical outcome of APVI in patients with long-lasting persistent atrial fibrillation (AF). BACKGROUND:Ablation of CFAEs has been reported to ...
journal_title:Journal of the American College of Cardiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/j.jacc.2008.10.054
更新日期:2009-03-03 00:00:00
abstract:OBJECTIVES:This study was conducted to assess the relations among intracoronary ultrasound, angiographic and histologic data obtained from patients with coronary artery disease successfully treated by directional coronary atherectomy. In addition, it was designed to elucidate whether some aspects of intravascular ultra...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/0735-1097(93)90667-p
更新日期:1993-02-01 00:00:00
abstract:OBJECTIVES:This study tested the hypothesis that response to antiarrhythmic drugs (AADs) is modulated by 3 common loci associated with atrial fibrillation (AF). BACKGROUND:Recent genome-wide association studies have identified 3 loci, on chromosomes 4q25 (near PITX2), 16q22 (in ZFHX3), and 1q21 (in KCNN3), that associ...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2012.01.070
更新日期:2012-08-07 00:00:00
abstract:OBJECTIVES:This study sought to evaluate the ability of the proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitor evolocumab to reduce the risk of complex coronary atherosclerosis requiring revascularization. BACKGROUND:PCSK9 inhibitors induce plaque regression and reduce the risk of coronary revascularizati...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2020.11.011
更新日期:2021-01-26 00:00:00
abstract::Homocysteine is increasingly recognized as a risk factor for coronary artery disease. An understanding of its metabolism and of the importance of vitamins B6 and B12 and folate as well as enzyme levels in its regulation will aid the development of therapeutic strategies that, by lowering circulating concentrations, ma...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,评审
doi:10.1016/0735-1097(95)00508-0
更新日期:1996-03-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to determine the effects of physical activity on systemic blood pressure (BP) and early markers of atherosclerosis in pre-pubertal obese children. BACKGROUND:Hypertension and endothelial dysfunction are premature complications of obesity. METHODS:We performed a 3-month randomized ...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.jacc.2009.08.030
更新日期:2009-12-15 00:00:00
abstract:OBJECTIVES:The purpose of this study was to examine the two-year clinical outcomes in patients enrolled in the Sirolimus-Eluting Stent in De Novo Native Coronary Lesions (SIRIUS) study. BACKGROUND:The SIRIUS study was a double-blinded randomized study which demonstrated that sirolimus-eluting stents (SES) significantl...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2005.11.077
更新日期:2006-04-04 00:00:00
abstract:OBJECTIVES:This study used pre-rotational and post-rotational atherectomy volumetric intravascular ultrasound analysis to determine whether rotational atherectomy causes ablation of non-calcified atherosclerotic plaque. BACKGROUND:Rotational atherectomy is currently the preferred treatment for heavily calcified corona...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(96)00255-0
更新日期:1996-10-01 00:00:00
abstract:BACKGROUND:A leadless cardiac pacemaker (LCP) system was recently introduced to overcome lead-related complications of conventional pacing systems. To date, long-term results of an LCP system are unknown. OBJECTIVES:The aim of this study was to assess the complication incidence, electrical performance, and rate respon...
journal_title:Journal of the American College of Cardiology
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1016/j.jacc.2015.02.022
更新日期:2015-04-21 00:00:00
abstract::The utility of ergonovine testing for coronary artery spasm was assessed in 3,447 patients with angiographically insignificant (less than 50% diameter stenosis) or no coronary artery disease. No patients clinically had Prinzmetal's variant angina. Overall, 4% had a positive ergonovine test result, defined by spasm cau...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/0735-1097(92)90145-d
更新日期:1992-07-01 00:00:00
abstract:OBJECTIVES:This study aimed to evaluate the effect of cardiac resynchronization therapy with a defibrillator (CRT-D) on the risks of first and recurrent ventricular tachyarrhythmic events (VTEs) in the MADIT-CRT. BACKGROUND:Reverse remodeling associated with CRT-D therapy was suggested to reduce arrhythmic risk. Howev...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.jacc.2012.05.057
更新日期:2012-10-30 00:00:00
abstract:OBJECTIVES:Our goals were to examine late clinical outcome in a cohort of patients who electively received Palmaz-Schatz intracoronary stents, to identify specific predictors of outcome and to determine the time course of the development of ischemic cardiac events after stenting. BACKGROUND:Short-term results of Palma...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/0735-1097(95)00574-9
更新日期:1996-04-01 00:00:00
abstract:OBJECTIVES:We sought to compare standard lower extremity vascular laboratory treadmill exercise with the office-based active pedal plantarflexion technique. BACKGROUND:Intermittent claudication is relatively common in elderly patients and is an important predictor of cardiovascular morbidity and mortality. Noninvasive...
journal_title:Journal of the American College of Cardiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/s0735-1097(01)01120-2
更新日期:2001-04-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to examine mortality and liver disease among patients exposed to dronedarone. BACKGROUND:There has been concern about the safety of dronedarone, especially for patients with heart failure and permanent atrial fibrillation (AF). There have also been suspicions about liver toxicity. ...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2014.02.601
更新日期:2014-06-10 00:00:00
abstract:OBJECTIVES:We sought to determine if the occurrence of postoperative atrial fibrillation (AF) affects early or late mortality following coronary artery bypass surgery (CABG). BACKGROUND:Atrial fibrillation is the most common arrhythmia seen following CABG. METHODS:The Texas Heart Institute Cardiovascular Research Dat...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2003.11.023
更新日期:2004-03-03 00:00:00
abstract:OBJECTIVES:This study assessed the feasibility of implanting a device in the left atrial appendage (LAA) in patients with atrial fibrillation (AF) to prevent thromboembolic stroke. BACKGROUND:Meta-analyses confirmed that in cases of left atrial thrombus in nonrheumatic AF patients approximately 90% of them are in the ...
journal_title:Journal of the American College of Cardiology
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1016/j.jacc.2007.02.035
更新日期:2007-04-03 00:00:00
abstract::Although valved conduits have been used successfully in severe forms of right ventricular-pulmonary artery discontinuity, progressive valved conduit stenosis is an important clinical problem. To determine the feasibility of reducing right heart valved conduit stenosis with a balloon expandable stent, a baboon model wa...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/0735-1097(90)90570-f
更新日期:1990-11-01 00:00:00
abstract:OBJECTIVES:The purpose of this study was to determine the efficacy of treatment with antiplatelet therapy and no anticoagulation after high pressure assisted coronary stent implantation performed without intravascular ultrasound (IVUS) guidance. BACKGROUND:Previous studies have shown that during IVUS-guided Palmaz-Sch...
journal_title:Journal of the American College of Cardiology
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1016/s0735-1097(96)00431-7
更新日期:1997-01-01 00:00:00
abstract::The value of heart rate variability, ambulatory electrocardiographic (ECG) variables and the signal-averaged ECG in the prediction of arrhythmic events (sudden death or life-threatening ventricular arrhythmias) was assessed before hospital discharge in 416 consecutive survivors of acute myocardial infarction. During t...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/0735-1097(91)90791-7
更新日期:1991-09-01 00:00:00
abstract:OBJECTIVES:Our goal was to assess the effect of hypercoagulability on the risk of stroke in patients with aortic plaques. BACKGROUND:Atherosclerotic plaques in the aortic arch are a risk factor for ischemic stroke. Their relationship with blood hypercoagulability, which might enhance their embolic potential and affect...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2008.04.062
更新日期:2008-09-02 00:00:00
abstract:BACKGROUND:In patients referred for radiofrequency catheter ablation (RFCA) of ventricular tachycardia (VT) in the setting of structural heart disease, early post-procedural mortality (EM) has not been previously investigated. OBJECTIVES:The purpose of this study was to evaluate EM after catheter ablation of scar-rela...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,多中心研究
doi:10.1016/j.jacc.2017.02.044
更新日期:2017-05-02 00:00:00
abstract:OBJECTIVES:In this study, our goal was to determine if human resistin plays a role in regulating the uptake of atherogenic low-density lipoproteins in human hepatocytes. BACKGROUND:Serum levels of resistin, an adipose tissue-derived adipokine, are increased in human obesity and are positively correlated with atheroscl...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2011.11.064
更新日期:2012-05-08 00:00:00
abstract::In the recent era, no congenital heart defect has undergone a more dramatic change in diagnostic approach, management, and outcomes than hypoplastic left heart syndrome (HLHS). During this time, survival to the age of 5 years (including Fontan) has ranged from 50% to 69%, but current expectations are that 70% of newbo...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,评审
doi:10.1016/j.jacc.2011.09.022
更新日期:2012-01-03 00:00:00
abstract:BACKGROUND:Bacterial growth in cultures of resected heart valves of patients with infective endocarditis (IE) is influenced by pre-operative antibiotic treatment (preop-AT). OBJECTIVES:This study sought to evaluate the time dependency of valve culture results (positive valve culture [PVC] vs. negative valve culture) o...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2020.04.075
更新日期:2020-07-07 00:00:00
abstract:OBJECTIVES:The goal of this study was to investigate the effect of three different doses of acetylsalicylic acid (aspirin) (ASA) on the late phase of ischemic preconditioning (PC) against myocardial stunning. BACKGROUND:Although recent evidence indicates that the late phase of ischemic PC is mediated by cyclooxygenase...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(03)00086-x
更新日期:2003-04-02 00:00:00