Rebound phenomena following gradual withdrawal of chronic metoprolol treatment in patients with ischemic heart disease.

abstract：BACKGROUND:Experimental studies suggest that metabolic myocardial support by intravenous (IV) glucose, insulin, and potassium (GIK) reduces ischemia-induced arrhythmias, cardiac arrest, mortality, progression from unstable angina pectoris to acute myocardial infarction (AMI), and myocardial infarction size. However, tr...

journal_title：American heart journal

authors： Selker HP,Beshansky JR,Griffith JL,D'Agostino RB,Massaro JM,Udelson JE,Rashba EJ,Ruthazer R,Sheehan PR,Desvigne-Nickens P,Rosenberg YD,Atkins JM,Sayah AJ,Aufderheide TP,Rackley CE,Opie LH,Lambrew CT,Cobb LA,Macleod BA

更新日期：2012-03-01 00:00:00

abstract：:A new agent for use in contrast echocardiography that is capable of passing through the pulmonary circulation and opacifying the left ventricular cavity after intravenous injection was evaluated in a canine model. Air-filled albumin microbubbles were produced by sonication. A Coulter counter was used to size and count...

journal_title：American heart journal

authors： Keller MW,Feinstein SB,Watson DD

更新日期：1987-09-01 00:00:00

abstract：BACKGROUND:Hepatocyte growth factor (HGF), a member of the endothelial-specific growth factors with the greatest mitogenic activity, may play a role in the protection and/or repair of vascular endothelial cells injured by atherosclerosis. As a result, plasma HGF concentration may increase in response to endothelial cel...

journal_title：American heart journal

authors： Tateishi J,Waku S,Masutani M,Ohyanagi M,Iwasaki T

更新日期：2002-02-01 00:00:00

abstract：BACKGROUND:Contrast-induced acute kidney injury (CIAKI) is a frequent complication after infusion of contrast media in patients undergoing percutaneous coronary intervention. A wide range of CIAKI rates occurs after intervention between 3% and 30%, depending on the definition. The aim of this study was to identify whic...

journal_title：American heart journal

authors： Budano C,Levis M,D'Amico M,Usmiani T,Fava A,Sbarra P,Burdese M,Segoloni GP,Colombo A,Marra S

更新日期：2011-05-01 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

authors： Brand FN,Larson M,Friedman LM,Kannel WB,Castelli WP

更新日期：1996-07-01 00:00:00

abstract：BACKGROUND:Elevated C-reactive protein (CRP) is a common finding in patients with aortic stenosis (AS) and may be associated with rapid AS progression and worse outcome. The purpose of the study was to examine the role of high-sensitivity CRP and its interaction with rosuvastatin on the progression of AS. METHODS:We m...

journal_title：American heart journal

authors： Chan KL,Dumesnil JG,Tam J,Ni A,Teo K

更新日期：2011-06-01 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

authors： Ishizaka N,Issiki T,Saeki F,Ishizaka Y,Ikari Y,Abe J,Soumitsu Y,Hashimoto H,Masaki K,Yamaguchi T

更新日期：1994-01-01 00:00:00

abstract：:In this study, we reviewed M-mode and two-dimensional (2DE) echocardiographic observations in 13 patients with pulmonary atresia with ventricular septal defect and in six patients with truncus arteriosus in order to attempt to identify echocardiographic features distinguishing these two abnormalities in which no anato...

journal_title：American heart journal

authors： Vargas Barron J,Sahn DJ,Attie F,Valdes-Cruz LM,Grenadier E,Allen HD,Oliveira Lima C,Goldberg SJ

更新日期：1983-02-01 00:00:00

abstract：:Pregnancy has been discouraged in patients with peripartum cardiomyopathy (PPCM) to avoid the risk of precipitating recurrent or progressive left ventricular dysfunction. We assessed left ventricular size and contractile function using echocardiography in four PPCM patients prior to pregnancy, during the third trimest...

journal_title：American heart journal

authors： Sutton MS,Cole P,Plappert M,Saltzman D,Goldhaber S

更新日期：1991-06-01 00:00:00

abstract：BACKGROUND:31-Phosphorus-magnetic resonance spectroscopy may provide pathophysiological insights into the high-energy phosphate metabolism of the myocardium as measured by phosphocreatine to adenosine triphosphate (PCr/ATP) ratio. Aim of the present study was to determine in vivo the relation between cardiac PCr/ATP ra...

journal_title：American heart journal

authors： Fragasso G,De Cobelli F,Spoladore R,Esposito A,Salerno A,Calori G,Montanaro C,Maranta F,Lattuada G,Margonato A,Del Maschio A,Perseghin G

更新日期：2011-07-01 00:00:00

abstract：:In patients with essential hypertension, glomerular filtration rate remains normal or elevated, whereas renal blood flow tends to be lower, which results in an increased filtration fraction. The afferent (preglomerular) arteriolar resistance determines the fraction of the pressure that is transmitted to the glomerular...

journal_title：American heart journal

authors： Larochelle P

更新日期：1991-10-01 00:00:00

abstract：:There are selective blocking agents (antagonists) for alpha receptors and beta receptors. These blocking agents prevent the response to injected agonists and neurogenically released norepinephrine. The principal cardiovascular response to alpha blockade is postural hypotension with reflexly induced cardiac stimulation...

journal_title：American heart journal

authors： Ahlquist RP

更新日期：1976-12-01 00:00:00

abstract：:Although the Doppler mitral flow velocity pattern changes in accordance with the degree of left ventricular diastolic dysfunction, it is "normalized" in the presence of heart failure. In this study the pulmonary venous flow velocity pattern was characterized in 43 hypertensive patients with and without heart failure t...

journal_title：American heart journal

authors： Masuyama T,Lee JM,Yamamoto K,Tanouchi J,Hori M,Kamada T

更新日期：1992-10-01 00:00:00

abstract：:The primary objective of this study was to apply a sophisticated coagulation monitoring system including estimation of the concentration of prothrombin fragment 1 + 2 (PTF 1 + 2) and the activity of prothrombin (coagulation factor II or FII) to cases of stent implantation and to compare the results with those of stand...

journal_title：American heart journal

authors： Haude M,Hafner G,Jablonka A,Rupprecht HJ,Prellwitz W,Meyer J,Erbel R

更新日期：1995-08-01 00:00:00

abstract：BACKGROUND:Clinical practice is discrepant regarding routine enlargement of the interatrial communication (IAC) in patients with right-sided atrioventricular valve atresia. We determined the percentage and risk factors of those who develop a restrictive IAC. METHODS:Medical records were reviewed for patients treated f...

journal_title：American heart journal

authors： Tzifa A,Gauvreau K,Geggel RL

更新日期：2007-12-01 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

authors： Khetan A,Purushothaman R,Zullo M,Gupta R,Hejjaji V,Agarwal S,Mohan SK,Josephson R

更新日期：2017-03-01 00:00:00

abstract：:Echocardiography was performed on 26 patients with prosthetic Björk-Shiley aortic valves (BSAV). Technically satisfactory records were obtained in 22 patients. The systolic displacement of the valve disc varied from 1 to 1.8 cm. (mean, 1.4 cm.). Six patients developed valve dysfunction. Two patients had complete absen...

journal_title：American heart journal

authors： Chandraratna PA,Lopez JM,Hildner FJ,Samet P,Ben-Zvi J

更新日期：1976-03-01 00:00:00

abstract：:In 72 patients who received streptokinase within 6 hours of the onset of an acute myocardial infarction (AMI), the relationship between the presence of a previous coronary event and the severity of the residual coronary artery stenosis was studied. Fifty-five patients were either asymptomatic or had recent onset angin...

journal_title：American heart journal

authors： Sarmiento RA,Blüguermann JJ,González Mora RC,Riccitelli MA,Bertolasi CA

更新日期：1989-11-01 00:00:00

abstract：:Baroreflex modulation of forearm vascular resistance (FVR) has been reported to be abnormal in patients with congestive heart failure (CHF). However, the neurohumoral mechanisms for this impairment are not defined. We assessed the responses of arterial pressure, FVR, plasma norepinephrine, and plasma renin activity to...

journal_title：American heart journal

authors： Mohanty PK,Arrowood JA,Ellenbogen KA,Thames MD

更新日期：1989-07-01 00:00:00

abstract：BACKGROUND:beta-blockers have been shown to benefit patients after myocardial infarction by decreasing mortality, sudden cardiac death, and reinfarction. Although beta-blockers are recommended for all patients with acute coronary syndromes (ACS) without contraindications, a target heart rate (HR) is recommended only fo...

journal_title：American heart journal

authors： Herman M,Donovan J,Tran M,McKenna B,Gore JM,Goldberg RJ,Tighe DA

更新日期：2009-09-01 00:00:00

abstract：:Left ventricular angiography frequently produces one or more premature atrial or ventricular contractions which may make quantitative volume analysis unreliable. Three hundred left ventricular power injections were analyzed and found to produce premature ventricular contractions (PVC's) in 28 per cent of injections an...

journal_title：American heart journal

authors： Caldwell JH,Kennedy JW

更新日期：1977-02-01 00:00:00

abstract：:Interatrial septal aneurysm (IASA) has been detected with increasing frequency since the advent of two-dimensional echocardiography (2DE). In this study, we investigated the prevalence, characteristics, and predisposing factors in IASA formation in 724 infants, children, and adolescents undergoing 2DE. Among this grou...

journal_title：American heart journal

authors： Wolf WJ,Casta A,Sapire DW

更新日期：1987-05-01 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

authors： Okada RD,Nguyen KN,Lauinger M,Allton IL,Johnson G 3rd

更新日期：1996-07-01 00:00:00

abstract：BACKGROUND:The major structural characteristic of congestive heart failure is myocardial cell death. The aim of our study was to determine whether the level of cardiac troponin T, a protein specific for cardiac necrosis, was increased in patients with congestive heart failure. METHODS AND RESULTS:Plasma samples were o...

journal_title：American heart journal

authors： Missov E,Mair J

更新日期：1999-07-01 00:00:00

abstract：AIMS:There is a growing concern about the occurrence of coronary artery aneurysms (CAAs) after drug-eluting stent (DES) implantation and their long-term course. We assessed the occurrence and the factors affecting the long-term outcome of DES-associated CAA. METHODS AND RESULTS:We analyzed 3,612 consecutive patients (...

journal_title：American heart journal

authors： Ahn CM,Hong BK,Kim JY,Min PK,Yoon YW,Lee BK,Kwon HM,Kim JS,Ko YG,Choi D,Hong MK,Jang Y,Shim WH,Cho SY,Kim BK,Oh S,Jeon DW,Yang JY,Jung JH

更新日期：2010-11-01 00:00:00

abstract：:There has been considerable debate regarding the value of programmed electrical stimulation in patients who present with asymptomatic, or minimally symptomatic, nonsustained VT. Unfortunately, there has never been a sufficiently large study of an untreated group of patients to make any sense of the issue. We culled th...

journal_title：American heart journal

authors： Kowey PR,Taylor JE,Marinchak RA,Rials SJ

更新日期：1992-02-01 00:00:00

abstract：BACKGROUND:Depression is common in cardiac patients and has been associated with adverse clinical outcome. However, little is known about predictors of the onset of depressive symptoms. We examined predictors of the onset of depressive symptoms at 12 months post-percutaneous coronary intervention (PCI) in patients trea...

journal_title：American heart journal

authors： Pedersen SS,Ong AT,Sonnenschein K,Serruys PW,Erdman RA,van Domburg RT

更新日期：2006-02-01 00:00:00

abstract：OBJECTIVE:Racial differences in cardiovascular mortality among women remain largely unexplained. Preliminary data suggest that African American and Caucasian differences in endothelial function may parallel differential cardiovascular disease (CVD) risk in women. To further study differences in endothelial function bet...

journal_title：American heart journal

authors： Loehr LR,Espeland MA,Sutton-Tyrrell K,Burke GL,Crouse JR 3rd,Herrington DM

更新日期：2004-10-01 00:00:00

abstract：:Combination therapy with mexiletine (MEX) and quinidine (Q) may be more efficacious than monotherapy with either drug in suppressing ventricular arrhythmias, but its effects on ventricular performance are not known. Thus, right ventricular ejection fraction (RVEF) and left ventricular ejection fraction (LVEF) and wall...

journal_title：American heart journal

authors： Sheldon RS,Duff HJ,Mitchell LB,Wyse DG,Manyari DE

更新日期：1988-05-01 00:00:00

abstract：BACKGROUND:Appropriate use criteria (AUC) for stress single-photon emission computed tomography (SPECT) are only one step in appropriate use of imaging. Other steps include pretest clinical risk evaluation and optimal management responses. We sought to understand the link between AUC, risk evaluation, management, and o...

journal_title：American heart journal

authors： Aldweib N,Negishi K,Seicean S,Jaber WA,Hachamovitch R,Cerqueira M,Marwick TH

更新日期：2013-09-01 00:00:00