Abstract:
:A new shape-memory coil for transcatheter closure of the PDA was developed and evaluated in a dog PDA model. The coil is sensitive to temperature (composed of thermal shape-memory nickel-titanium). The coil was delivered to and implanted in the PDA model with a 5F catheter through the femoral artery. The PDA model was made in 14 dogs by infrarenal aorta banding (diameter 2.0 +/- 0.6 mm; length 2.9 +/- 0.1 mm). Coils were implanted in 10 dogs, whereas the other 4 dogs served as controls. Complete occlusion of the PDA model was confirmed by angiography 24 hours after the coil implantation in 7 of 10 dogs, whereas small residual flow was noted even 2 weeks after the coil implantation in the other 3 dogs. The PDA model internal diameter in the dogs with complete occlusion (1.8 +/- 0.2 mm) was significantly smaller than the diameter in dogs with residual flow (2.9 +/- 0.4 mm, P < 0.05). In the 4 control dogs, the PDA model remained patent 2 weeks after the banding. We conclude that the transcatheter occlusion with the shape-memory coil was effective in the small-diameter PDA model.
journal_name
Am Heart Jjournal_title
American heart journalauthors
Liu C,Shiraishi H,Kikuchi Y,Yanagisawa Mdoi
10.1016/s0002-8703(96)90189-1subject
Has Abstractpub_date
1996-05-01 00:00:00pages
1018-23issue
5eissn
0002-8703issn
1097-6744pii
S0002-8703(96)90189-1journal_volume
131pub_type
杂志文章abstract:BACKGROUND:Recently revised American College of Cardiology/American Heart Association guidelines have suggested that exercise test scores be used in decisions concerning patients with suspected coronary artery disease (CAD). Pretest and exercise test scores derived for use in women without known CAD have not been teste...
journal_title:American heart journal
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1016/j.ahj.2003.12.034
更新日期:2004-06-01 00:00:00
abstract::Saphenous vein graft (SVG) failure is a common finding in patients following coronary artery bypass graft (CABG) surgery. In the literature SVG failure rates have been reported from 25 to over 50% within 10 years. Although common, it remains unclear to what extent SVG failure affects clinical outcome, due to differenc...
journal_title:American heart journal
pub_type: 社论
doi:10.1016/j.ahj.2013.01.019
更新日期:2013-05-01 00:00:00
abstract::Angina pectoris before and after MI was evaluated in a sample of 729 men and women from a general population in whom MI developed during a 36-year period of follow-up. Relations of AP to subsequent CHD events and mortality after initial MI were analyzed by proportional hazards regression models and were adjusted for c...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/s0002-8703(96)90406-8
更新日期:1996-07-01 00:00:00
abstract::Sixteen patients with mild or moderate essential hypertension received 1 to 8 mg/day of doxazosin (mean daily dose, 2.7 mg). Blood pressure reduction (supine and standing) was highly significant (p less than 0.001), and no significant changes in heart rate were observed. A significant reduction (p less than 0.01) in l...
journal_title:American heart journal
pub_type: 临床试验,杂志文章
doi:10.1016/0002-8703(91)90871-e
更新日期:1991-01-01 00:00:00
abstract:BACKGROUND:Single nucleotide polymorphisms of vitamin K epoxide reductase complex subunit 1 (VKORC1) was reported to have association with arterial vascular disease. We investigated whether single nucleotide polymorphism of VKORC1 +2255 is associated with clinical outcomes among patients who underwent drug-eluting sten...
journal_title:American heart journal
pub_type: 杂志文章,多中心研究
doi:10.1016/j.ahj.2009.02.001
更新日期:2009-05-01 00:00:00
abstract::In order to properly advise cardiac patients in the regulation of their sexual activity, more basic physiologic information is needed concerning the cardiovascular effects of sexual intercourse. This study examined the effects of the male's position during sexual intercourse on heart rate and blood pressure responses....
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/s0002-8703(76)80106-8
更新日期:1976-09-01 00:00:00
abstract::Percutaneous transluminal coronary angioplasty (PTCA) was performed in 110 consecutive patients (111 vessels) with chronically occluded coronary arteries and was successful in 69 patients (69 vessels). Successful initial PTCA was related to the extent of coronary artery disease, the morphology of the proximal surface ...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/0002-8703(94)90503-7
更新日期:1994-01-01 00:00:00
abstract::Patent foramen ovale (PFO) and atrial septal aneurysm (ASA) have been identified as potential risk factors for stroke, but information about the risk of recurrent cerebral ischemia is scarce. The aim of this retrospective study was to assess the absolute risk of recurrent cerebrovascular events in 132 patients under 6...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/0002-8703(95)90212-0
更新日期:1995-11-01 00:00:00
abstract::Recognition of tachyarrhythmia by an implantable cardioverter-defibrillator (ICD) requires an intact rate-sensing lead. We retrospectively examined 266 consecutive patients requiring an ICD to characterize the incidence, clinical presentation, diagnosis, and management of a defective rate-sensing lead. To identify cli...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/0002-8703(94)90585-1
更新日期:1994-11-01 00:00:00
abstract::Technetium 99m-Q12 is a new cationic myocardial perfusion imaging agent that produces excellent images in human beings. The purpose of this study was to examine the separate effects of hypoxia and low flow on myocardial clearance kinetics. After a 1 mCi bolus injection, myocardial 99mTc-Q12 clearance was monitored for...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/s0002-8703(96)90397-x
更新日期:1996-07-01 00:00:00
abstract::Few studies have examined metabolic consequences of coronary occlusion and reperfusion using phosphorus31 nuclear magnetic resonance (31P-NMR) in an intact animal model. Accordingly, we developed a model to study serial changes in myocardial metabolism in the intact open-chest rabbit. Ten animals underwent 20 +/- 2 mi...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/0002-8703(89)90656-x
更新日期:1989-01-01 00:00:00
abstract::The hemodynamic, electrocardiographic, and metabolic responses of dogs with acute myocardial ischemia to intravenous administration of fructose-1,6-diphosphate (FDP) were assessed. Analysis of the results (compared to dextrose control) revealed evidence of major improvement of LVEDP and cardiac output, significant dec...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/0002-8703(80)90228-8
更新日期:1980-11-01 00:00:00
abstract:BACKGROUND:Few data are available on the temporal patterns of health resource utilization (HRU) and expenditures around paroxysmal supraventricular tachycardia (PSVT) diagnosis. This study assessed the longitudinal trends in HRU and expenditures in the 3 years preceding and subsequent to PSVT diagnosis. METHODS:Adult ...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/j.ahj.2020.12.012
更新日期:2021-01-15 00:00:00
abstract::Atrial depressurization time measurement by Doppler ultrasound can be used to quantify stenotic mitral valve area. In this report, we present the results of a blinded trial comparing the standard Doppler method for "pressure half-time" (A) and another Doppler method we devised (B) for measurement of atrial depressuriz...
journal_title:American heart journal
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/0002-8703(87)90045-7
更新日期:1987-04-01 00:00:00
abstract:BACKGROUND:Diastolic dysfunction induced by ischemia may alter transmitral blood flow, but this reflects global ventricular function, and pseudonormalization may occur with increased preload. Tissue Doppler may assess regional diastolic function and is relatively load-independent, but limited data exist regarding its a...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1067/mhj.2002.123836
更新日期:2002-09-01 00:00:00
abstract::Oxygen has long been assumed beneficial for all ill and injured patients. However, hyperoxia may be harmful and aggravate myocardial injury such as that caused by myocardial infarction. We aimed to investigate if hyperoxia increases myocardial injury following direct current cardioversion compared with room air. METH...
journal_title:American heart journal
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.ahj.2017.10.006
更新日期:2018-02-01 00:00:00
abstract::Current evidence suggests that the pathogenesis of atrial fibrillation (AF) is multifactorial. The observation that AF, once present, alters the electrophysiologic properties of the atrial myocardium causing self-perpetuation of the arrhythmia raised the importance of electrical remodeling in its pathogenesis. Althoug...
journal_title:American heart journal
pub_type: 杂志文章,评审
doi:10.1016/j.ahj.2008.10.009
更新日期:2009-02-01 00:00:00
abstract:BACKGROUND:The contemporary magnitude and prognostic implications of complete heart block (CHB) in patients with acute myocardial infarction (AMI) are unknown. As part of a community-based study of patients hospitalized with AMI in the Worcester, MA, metropolitan area, changes over time in the incidence rates of CHB co...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/j.ahj.2008.03.011
更新日期:2008-08-01 00:00:00
abstract::To study the left ventricular (LV) diastolic function in uncomplicated insulin-dependent diabetic patients without hypertension (n = 25) and comparable controls (n = 15), the effect of acute administration of nitroglycerin and nifedipine on cavity dimensions and transmitral flow pattern was investigated by Doppler ech...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/0002-8703(93)90542-h
更新日期:1993-12-01 00:00:00
abstract:BACKGROUND:Lipid lowering through statin therapy significantly reduces the risk of cardiovascular events. The ENHANCE study is an international 2-year, randomized, double-blind, controlled trial designed to test the hypothesis that treatment of hypercholesterolemia by use of 2 complementary agents, ezetimibe (a specifi...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/j.ahj.2004.06.024
更新日期:2005-02-01 00:00:00
abstract::CHD remains the leading cause of death in most developed countries; therefore, elucidation of risk factors and associated mechanisms for atherosclerosis and development of CHD has been a high priority. Data from the Framingham Heart Study and other large-scale epidemiologic studies have identified major risk factors a...
journal_title:American heart journal
pub_type: 杂志文章,评审
doi:10.1016/s0002-8703(96)90096-4
更新日期:1996-06-01 00:00:00
abstract:BACKGROUND:Low heart rate recovery (HRR) at exercise test and the metabolic syndrome (MetS) are both predictors of cardiovascular morbidity and mortality. We studied in 75-year-old women and men, representative of the general population, the relationship between (1) HRR and the MetS, (2) HRR and the individual componen...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/j.ahj.2007.06.025
更新日期:2007-09-01 00:00:00
abstract:BACKGROUND:We evaluated the influence of peak respiratory exchange ratio (pRER), as an index of effort adequacy, on peak VO2 prognostic reliability in patients with chronic heart failure (CHF) and reduced exercise capacity, whose peak VO2 may be underestimated because of poor patient motivation. METHODS:A cardiopulmon...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/S0002-8703(03)00100-5
更新日期:2003-06-01 00:00:00
abstract:BACKGROUND:The increasing burden of cardiovascular disease (CVD) in low- and middle-income countries is largely driven by the increasing prevalence of hypertension, diabetes, and tobacco use. We hypothesize that the utilization of community health workers (CHWs) to screen for and manage these 3 determinants of CVD in a...
journal_title:American heart journal
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.ahj.2016.10.027
更新日期:2017-03-01 00:00:00
abstract:BACKGROUND:Selenium is a central determinant of antioxidative glutathione peroxidase 1 (GPx-1) expression and activity. The relevance of selenium supplementation on GPx-1 in coronary artery disease (CAD) needs to be established. We assessed the effect of selenium supplementation on GPx-1 in cell culture and on endothel...
journal_title:American heart journal
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.ahj.2008.09.004
更新日期:2008-12-01 00:00:00
abstract:BACKGROUND:Galectin-3, a β-galactoside binding lectin involved in important regulatory roles in adhesion, inflammation, immunity, and fibrosis, may be relevant to atrial fibrillation (AF) etiology. METHODS:We included 8,436 participants free of AF at baseline (1996-1998) and with measures of plasma galectin-3 from the...
journal_title:American heart journal
pub_type: 杂志文章,多中心研究
doi:10.1016/j.ahj.2017.07.001
更新日期:2017-10-01 00:00:00
abstract::The Institute of Medicine report on the frequency and consequences of medical errors in clinical practice has stimulated physicians to evaluate current practice and means of improving medical care. In the treatment of patients with acute myocardial infarction, previous studies have found that dosing of fibrinolytic th...
journal_title:American heart journal
pub_type: 杂志文章,评审
doi:10.1067/mhj.2000.111605
更新日期:2000-12-01 00:00:00
abstract::Early postexercise polarcardiographic (PCG) changes in the ST segment vector, as reflected in the variable MS X theta, are reported to clearly distinguish normal subjects from those with myocardial ischemia. We prospectively assessed the value of this test in detecting coronary artery disease (CAD) during treadmill ex...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/0002-8703(85)90019-5
更新日期:1985-12-01 00:00:00
abstract::The relation of alcohol consumption to coronary heart disease (CHD) was examined in a cohort of 1910 employed men aged 38 to 55 years enrolled in the Albany Study, a prospective investigation of factors related to cardiovascular disease. Two follow-up periods were examined, one between 1953-54 and 1971-72, the other a...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/0002-8703(85)90152-8
更新日期:1985-08-01 00:00:00
abstract::Increased intracellular calcium (calcium overload) is considered one of the factors that can initiate ventricular fibrillation. In addition, ventricular fibrillation itself can cause and possibly maintain calcium overload. The goal of this study was to determine whether the class IA antiarrhythmic agent procainamide c...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/0002-8703(95)90453-0
更新日期:1995-08-01 00:00:00