The effects of atrial pacing on the signal-averaged electrocardiogram in patients with coronary artery disease.

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：:Adverse drug events affect millions of patients each year. An important drug-drug interaction between amiodarone and vitamin K antagonists is encountered frequently in daily clinical practice. Warfarin, a commonly used anticoagulant, is a mixture of 2 optically active isomers (R and S enantiomers). The S enantiomer is...

journal_title：American heart journal

authors： Shirolkar SC,Fiuzat M,Becker RC

更新日期：2010-10-01 00:00:00

abstract：BACKGROUND:Although age is the most important variable associated with death among patients with persistent ST-segment elevation, its impact on outcome among patients without persistent ST-segment elevation remains unknown. Moreover, the impact of age on the efficacy of antiplatelet therapy with eptifibatide is unknown...

journal_title：American heart journal

authors： Hasdai D,Holmes DR Jr,Criger DA,Topol EJ,Califf RM,Harrington RA

更新日期：2000-05-01 00:00:00

abstract：BACKGROUND:Bivalirudin is shown to be a competent substitute for heparin in percutaneous coronary intervention (PCI). The safety and efficacy of bivalirudin in patients undergoing PCI and vascular brachytherapy (VBT) are not known. This study aimed to assess the safety and efficacy of bivalirudin as a single antithromb...

journal_title：American heart journal

authors： Kuchulakanti P,Wolfram R,Torguson R,Rha SW,Cheneau E,Pinnow EE,Canos D,Satler LF,Pichard AD,Kent KM,Waksman R

更新日期：2005-10-01 00:00:00

abstract：BACKGROUND:Patients with heart failure frequently exhibit intraventricular conduction delays, which contribute to asynchronous contraction patterns and impaired hemodynamic performance. Cardiac resynchronization therapy (CRT) with biventricular (BV) and left ventricular (LV) pacing has been shown to improve both hemody...

journal_title：American heart journal

authors： Breithardt OA,Stellbrink C,Franke A,Balta O,Diem BH,Bakker P,Sack S,Auricchio A,Pochet T,Salo R,Pacing Therapies for Congestive Heart Failure Study Group.,Guidant Congestive Heart Failure Research Group.

更新日期：2002-01-01 00:00:00

abstract：:In vitro studies have established that intravascular ultrasound is a reliable technique for accurate assessment of vascular anatomic structure and disease conditions before and after intervention. In addition, quantitative data from intravascular ultrasound studies correspond well with histologic findings, which serve...

journal_title：American heart journal

authors： Gussenhoven EJ,van der Lugt A,van der Steen AF,Ligtvoet KM

更新日期：1996-09-01 00:00:00

abstract：:Fifty adult men with mild to moderate hypertension were recruited to participate in a double-blind crossover study. Each subject received 14 days of drug treatment and 14 days of placebo treatment (random order). Half the subjects were assigned to a metoprolol (150 mg/day) vs placebo treatment regimen and half to an a...

journal_title：American heart journal

authors： Streufert S,DePadova A,McGlynn T,Pogash R,Piasecki M

更新日期：1988-07-01 00:00:00

abstract：:The main threat to patients with mild to moderate hypertension is coronary heart disease (CHD), but controlled trials of antihypertensive drug therapy have given disappointing results: overall, the reduction in CHD mortality (11%) and morbidity (10%) were small and nonsignificant. Recent trials comparing a beta blocke...

journal_title：American heart journal

authors： Rose G

更新日期：1987-10-01 00:00:00

abstract：BACKGROUND:Ideal cardiovascular health (ICH) aims at primordial prevention of cardiovascular diseases in the population. However, there is a lack of research describing ICH in youth from middle-income countries. The aims of this study were to describe the prevalence of ICH at 18 and 22-years old and to investigate the ...

journal_title：American heart journal

authors： Oliveira RS,Schneider BC,Callo-Quinte G,Oliveira IO,Gonçalves H,Wehrmeister F,Menezes AMB

更新日期：2021-01-25 00:00:00

abstract：:The long-term prognosis of patients successfully resuscitated from cardiac arrest who do not have acute precipitating factors and in whom ventricular arrhythmias cannot be induced during baseline electrophysiologic testing is controversial. The purpose of this investigation was to evaluate the long-term risk of recurr...

journal_title：American heart journal

authors： Sager PT,Choudhary R,Leon C,Rahimtoola SH,Bhandari AK

更新日期：1990-12-01 00:00:00

abstract：:Atrial pacing-induced changes in the sum of R-wave amplitude were measured in leads V5, X, Y, and Z at rates of 100 bpm (phase I), 150 bpm (phase II), and immediately after pacing (phase III) in 33 patients undergoing cardiac catheterization for evaluation of chest pain. Seventeen (51%) patients showed evidence of isc...

journal_title：American heart journal

authors： David D,Kitchen JG 3rd,Michelson EL,Naito M,Sawin HS,Chen CC

更新日期：1984-01-01 00:00:00

abstract：BACKGROUND:The study aimed to compare the short-term costs and long-term cost-effectiveness of 2 antithrombotics, fondaparinux and enoxaparin, for non-ST-elevation acute coronary syndrome in the United States. METHODS:It was based on a large randomized trial of 20,078 patients Fifth Organization to Assess Strategies i...

journal_title：American heart journal

authors： Sculpher MJ,Lozano-Ortega G,Sambrook J,Palmer S,Ormanidhi O,Bakhai A,Flather M,Steg PG,Mehta SR,Weintraub W

更新日期：2009-05-01 00:00:00

abstract：:This review focuses on selected aspects of the treatment of patients being evaluated for and undergoing cardiac transplantation. Cardiac transplantation is a potential therapeutic option for a variety of irreversible cardiac disorders when the symptomatic status and anticipated survival after transplantation exceeds t...

journal_title：American heart journal

authors： Taylor AJ,Bergin JD

更新日期：1995-03-01 00:00:00

abstract：:The antiarrhythmic effect of nadolol, a long-acting, nonselective beta antagonist without intrinsic sympathomimetic or membrane-stabilizing properties, was evaluated in 36 patients with ventricular dysrhythmias as determined by three baseline 24-hour Holter recordings at a time when subjects were receiving placebo. Na...

journal_title：American heart journal

authors： Nademanee K,Schleman MM,Singh BN,Morganroth J,Reid PR,Stritar JA

更新日期：1984-10-01 00:00:00

abstract：BACKGROUND:Statins (3-hydroxy-3-methyl-glutaryl coenzyme A reductase inhibitors) are known to reduce mortality and cardiac events in patients with coronary artery disease who have not progressed to left ventricular systolic dysfunction (LVSD) and/or heart failure (HF). This study investigated the effect of changes in s...

journal_title：American heart journal

authors： Huan Loh P,Windram JD,Tin L,Reddy P,Velavan P,Rigby AS,Atkin P,Nikitin NP,Clark AL,Cleland JG

更新日期：2007-04-01 00:00:00

abstract：BACKGROUND:Angiotensin-converting enzyme (ACE) inhibitors are established as first-line therapy in chronic heart failure (CHF). However, conflicting results exist regarding the dose-effect relation of ACE inhibitors. METHODS:We investigated 45 patients (age 55 +/- 10 years) with stable CHF who presented with a mainten...

journal_title：American heart journal

authors： Brunner-La Rocca HP,Weilenmann D,Kiowski W,Maly FE,Candinas R,Follath F

更新日期：1999-10-01 00:00:00

abstract：:We investigated the incidence and mechanism of pulmonary artery hypertension (PAH) in a consecutive series of patients with aortic stenosis who were undergoing diagnostic cardiac catheterization. Forty-five patients with severe aortic stenosis were divided into two groups: group 1 comprised 13 patients (29%) with PAH ...

journal_title：American heart journal

authors： Silver K,Aurigemma G,Krendel S,Barry N,Ockene I,Alpert J

更新日期：1993-01-01 00:00:00

abstract：BACKGROUND:Congestive heart failure (CHF) and heart transplantation (HTX) are characterized by endothelial dysfunction as indicated by elevation of markers of endothelial function, including endothelin and von Willebrand factor (vWF). However, previous studies included both patients with idiopathic dilated cardiomyopat...

journal_title：American heart journal

authors： Galatius S,Wroblewski H,Sørensen VB,Bie P,Parving HH,Kastrup J

更新日期：1999-03-01 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

authors： Pearlman JD,Gibson RS

更新日期：1987-04-01 00:00:00

abstract：BACKGROUND:Performing preoperative coronary angiography (CA) before surgical repair of a type A acute aortic dissection (TA-AAD) remains controversial. Although the information provided by CA may be useful in planning the surgical approach, the potential delay to surgery and complications of CA may confer added risk of...

journal_title：American heart journal

authors： Ramanath VS,Eagle KA,Nienaber CA,Isselbacher EM,Froehlich JB,Montgomery DG,Cooper JV,Gu X,Evangelista A,Voehringer M,Beckman J,Myrmel T,Pape L,Pyeritz RE,Hirsch AT,Gilon D,Bossone E

更新日期：2011-04-01 00:00:00

abstract：BACKGROUND:Half of patients with hypertension have poor blood pressure (BP) control. Recent models for treating hypertension have integrated disease monitoring and telephone-based interventions delivered in patients' homes. This study evaluated the costs of the Hypertension Intervention Nurse Telemedicine Study (HINTS)...

journal_title：American heart journal

authors： Wang V,Smith VA,Bosworth HB,Oddone EZ,Olsen MK,McCant F,Powers BJ,Van Houtven CH

更新日期：2012-06-01 00:00:00

abstract：:To investigate the influence of intrinsic limb vasodilator capacity on exercise performance, limb reactive hyperemic flows and their relations to exercise capacity during upright bicycle exercise were examined in 52 patients with recent myocardial infarction. Reactive hyperemic flow was measured in the forearm and the...

journal_title：American heart journal

authors： Hattori T,Sumimoto T,Yuasa F,Kaida M,Jikuhara T,Hikosaka M,Sugiura T,Iwasaka T

更新日期：1996-09-01 00:00:00

abstract：:Of 178 transseptal left heart catheterizations performed, 173 successful cases are reported, with the use of a Swan-Ganz, flow-directed, balloon-tipped catheter. By means of a modified Brockenbrough technique, which is described in detail, a 10F Teflon tube (3.3 mm outside diameter) was inserted into the left atrium. ...

journal_title：American heart journal

authors： Bagger JP,Sennels F,Vejby-Christensen H,Rasmussen K,Thomsen PE,Gøtzsche H

更新日期：1985-02-01 00:00:00

abstract：:This article reviews the evidence that congestive heart failure is accompanied by an increased plasma norepinephrine concentration and that this is due not only to a reduced tissue clearance of the substance but also to a marked increase in sympathetic nerve activity. It also reports data that indicate that the sympat...

journal_title：American heart journal

authors： Mancia G

更新日期：1990-12-01 00:00:00

abstract：BACKGROUND:A common regimen for patients requiring dual-antiplatelet therapy who are at risk for gastrointestinal complications is the synchronous administration of enteric-coated (EC) aspirin, a proton pump inhibitor, and clopidogrel, although proton pump inhibitors have the potential for pharmacodynamic interaction w...

journal_title：American heart journal

authors： Gurbel PA,Bliden KP,Fort JG,Jeong YH,Shuldiner A,Chai S,Gesheff T,Antonino M,Gesheff M,Zhang Y,Tantry US

更新日期：2013-02-01 00:00:00

abstract：:The aim of our study was to compare the outcome of patients with a first acute myocardial infarction (AMI) among three large cohorts of patients hospitalized between 1966 and 1992 in Israel, in view of changes in treatment facilities and investigation methods. Patients with a first AMI constituted 71% of all myocardia...

journal_title：American heart journal

authors： Behar S,Goldbourt U,Barbash G,Modan B

更新日期：1995-09-01 00:00:00

abstract：BACKGROUND:Some pharmacist-managed anticoagulation services (PMAS) provide initial follow-up to patients on oral anticoagulant, who are transferred to their physician once they are stabilized. This may be as effective as and less expensive than long-term PMAS follow-up. METHODS:Once PMAS patients were stabilized and r...

journal_title：American heart journal

authors： Lalonde L,Martineau J,Blais N,Montigny M,Ginsberg J,Fournier M,Berbiche D,Vanier MC,Blais L,Perreault S,Rodrigues I

更新日期：2008-07-01 00:00:00

abstract：:Repair of coarctation of the aorta may not prevent the subsequent development of elevated systemic blood pressure at rest or with exercise. The correlates of late postoperative resting systolic blood pressure and maximal exercise systolic blood pressure levels were investigated in a retrospective study of 42 patients ...

journal_title：American heart journal

authors： Daniels SR,James FW,Loggie JM,Kaplan S

更新日期：1987-02-01 00:00:00

abstract：BACKGROUND:Randomized trials have established efficacy of clopidogrel in various types of acute coronary syndromes (ACS). The objective of this study was to examine the temporal trends and patterns of early clopidogrel use (within the first 24 hours of hospitalization) across the spectrum of patients with ACS in Canada...

journal_title：American heart journal

authors： Rao RV,Goodman SG,Yan RT,Spencer FA,Fox KA,DeYoung JP,Rose B,Grondin FR,Gallo R,Gore JM,Yan AT,Canadian Global Registry of Acute Coronary Events (GRACE\/GRACE(2)) Investigators.

更新日期：2009-04-01 00:00:00

abstract：:Two-dimensional contrast perfusion echocardiography was performed in 14 patients who underwent percutaneous transluminal coronary angioplasty to test the efficacy of this new technique for defining the area at risk of dyskinesis during acute coronary occlusion. In nine patients (group A) selective coronary injection o...

journal_title：American heart journal

authors： Griffin B,Timmis AD,Henderson RA,Sowton E

更新日期：1987-09-01 00:00:00