Concealed atrial bigeminy: mechanisms of disappearance and reappearance of manifest extrasystoles.

abstract：BACKGROUND:Chest pain in the absence of obstructive coronary artery disease (CAD) is common in women; it is frequently associated with debilitating symptoms and repeated evaluations and may be caused by coronary microvascular dysfunction. However, the prevalence and determinants of microvascular dysfunction in these wo...

journal_title：American heart journal

authors： Reis SE,Holubkov R,Conrad Smith AJ,Kelsey SF,Sharaf BL,Reichek N,Rogers WJ,Merz CN,Sopko G,Pepine CJ,WISE Investigators.

更新日期：2001-05-01 00:00:00

abstract：:In this editorial, the problem of restenosis after coronary balloon angioplasty and other transluminal interventions is reviewed from the perspective of quantitative coronary angiography. The review is largely based on the experience of the Thoraxcentre in the application of quantitative angiography to the study of re...

journal_title：American heart journal

authors： Serruys PW,Foley DP,Kirkeeide RL,King SB 3rd

更新日期：1993-11-01 00:00:00

abstract：BACKGROUND:The use of vascular closure devices (VCDs) for the reduction of access site complications following percutaneous coronary intervention (PCI) remains controversial. Patients undergoing primary PCI for acute ST-segment elevation myocardial infarction (STEMI) are at high risk of femoral artery complications. A ...

journal_title：American heart journal

authors： Prada-Delgado Ó,Estévez-Loureiro R,Calviño-Santos R,Barge-Caballero E,Salgado-Fernández J,Piñón-Esteban P,Vázquez-Rodríguez JM,Aldama-López G,Flores-Ríos X,Soler-Martín MR,Vázquez-González N,Castro-Beiras A

更新日期：2011-06-01 00:00:00

abstract：BACKGROUND:There are limited data regarding the clinical correlates and prognostic significance of echocardiographically defined mitral regurgitation (MR) early after acute myocardial infarction (MI). The current study addressed these issues. METHODS:Seven hundred thirty-seven patients with acute MI who underwent tran...

journal_title：American heart journal

authors： Hillis GS,Møller JE,Pellikka PA,Bell MR,Casaclang-Verzosa GC,Oh JK

更新日期：2005-12-01 00:00:00

abstract：:Plasma catecholamine levels were determined in 26 cases of uncomplicated myocardial infarction within 24 hours of onset of acute chest pain. Blood samples were collected at time of entry and at 4-hour intervals during the 48 hours following admission. Average values of plasma catecholamines within 1 hour of onset of p...

journal_title：American heart journal

authors： Nadeau RA,de Champlain J

更新日期：1979-11-01 00:00:00

abstract：BACKGROUND:Little is known about the management of elderly patients with congestive heart failure (CHF) although they represent the majority of the CHF population. Therefore, the TIME-CHF study was set up (1) to evaluate the medical management of very old patients (> or = 75 years) with CHF compared with younger patien...

journal_title：American heart journal

authors： Brunner-La Rocca HP,Buser PT,Schindler R,Bernheim A,Rickenbacher P,Pfisterer M,TIME-CHF-Investigators.

更新日期：2006-05-01 00:00:00

abstract：:The hemodynamic effects of molsidomine were studied in 48 patients with acute myocardial infarction and compared with hemodynamic properties in a control group of 24 patients. The most pronounced decrease in pulmonary artery diastolic pressure occurs between 30 and 60 minutes after oral administration of 8 to 12 mg (n...

journal_title：American heart journal

authors： Reifart N,Neidl K,Kaltenbach M,Bussmann WD

更新日期：1985-03-01 00:00:00

abstract：:Three cases of large multiple coronary aneurysms, situated on both right and left coronary arteries, were seen in three middle-aged adult patients. These patients were hospitalized for myocardial infarction in two cases and for angina pectoris in the third case. On the coronary angiogram, the coronary lesions were qui...

journal_title：American heart journal

authors： Letac B,Cazor JL,Cribier A,Sibille C,Toussaint C

更新日期：1980-06-01 00:00:00

abstract：:Although coronary thrombosis is thought to play a pivotal role in the pathogenesis of unstable angina and non-Q wave myocardial infarction and antithrombotic therapy is a mainstay in the early management of these patients, the relation between measures of systemic anticoagulation and clinical events has not been defin...

journal_title：American heart journal

authors： Becker RC,Cannon CP,Tracy RP,Thompson B,Bovill EG,Desvigne-Nickens P,Randall AM,Knatternud G,Braunwald E

更新日期：1996-03-01 00:00:00

abstract：BACKGROUND:Although more than one million patients in the United States have permanent pacemakers, little is known about their cause of death. We evaluated the cause of death in 404 patients who died in the Mode Selection Trial (MOST). METHODS:In MOST, patients received a dual-chamber pacemaker randomly programmed to ...

journal_title：American heart journal

authors： Flaker G,Greenspon A,Tardiff B,Schron E,Goldman L,Hellkamp A,Lee K,Lamas G,Mode Selection Trial (MOST) Investigators.

更新日期：2003-11-01 00:00:00

abstract：BACKGROUND:Anemia is now recognized as being a common finding in CHF and is associated with increased mortality and morbidity. However, it is uncertain whether the anemia is actually causing the worse prognosis or is merely a marker of more severe cardiac disease. Previous intervention studies with subcutaneous (s.c.) ...

journal_title：American heart journal

authors： Palazzuoli A,Silverberg D,Iovine F,Capobianco S,Giannotti G,Calabrò A,Campagna SM,Nuti R

更新日期：2006-12-01 00:00:00

abstract：OBJECTIVES:We investigated the presence of left ventricular hypertrophy (LVH) and features of diastolic dysfunction in genotype-confirmed children from families with hypertrophic cardiomyopathy (HCM) and healthy control children. BACKGROUND:In subjects with HCM-causing mutations, LVH usually does not evolve until adol...

journal_title：American heart journal

authors： Poutanen T,Tikanoja T,Jääskeläinen P,Jokinen E,Silvast A,Laakso M,Kuusisto J

更新日期：2006-03-01 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：BACKGROUND:The Total Occlusion Study of Canada (TOSCA) is a multicenter, randomized trial evaluating the effect of stenting with > =1 heparin-coated stent on long-term patency after percutaneous coronary intervention by balloon angioplasty of occluded coronary arteries. The purpose of the current study was to compare t...

journal_title：American heart journal

authors： Dzavik V,Carere RG,Mancini GB,Cohen EA,Catellier D,Anderson TE,Barbeau G,Lazzam C,Title LM,Berger PB,Labinaz M,Teo KK,Buller CE,Total Occlusion Study of Canada Investigators.

更新日期：2001-08-01 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

authors： Mezzani A,Corrà U,Bosimini E,Giordano A,Giannuzzi P

更新日期：2003-06-01 00:00:00

abstract：:Progress in our understanding diabetic angiopathy has been slow, but we are now learning a number of lessons of interest to the cardiologist. Diabetic angiopathy is a collective term for conditions specific to the diabetic state and related to its duration more than to patient age. The angiopathy produces calcificatio...

journal_title：American heart journal

authors： McMillan DE

更新日期：1978-09-01 00:00:00

abstract：:The 2,000 heart donors available annually continue to be inadequate for the 50,000 patients with end-stage congestive heart failure who require heart transplantation to survive. This discrepancy has led to the successful use of long-term implantable LVADs as a bridge to transplantation and has raised the issue of perm...

journal_title：American heart journal

authors： Oz MC,Rose EA,Levin HR

更新日期：1995-01-01 00:00:00

abstract：:Compared with pathologic studies coronary angiography is a relatively insensitive technique to detect early atherosclerosis. Coronary angioscopy is a new technique providing direct information on luminal vessel surface. To determine whether coronary angioscopy may detect the presence of atherosclerotic disease on angi...

journal_title：American heart journal

authors： Alfonso F,Goicolea J,Hernandez R,Segovia J,Silva JC,Perez-Vizcayno MJ,Rollan MJ,Bañuelos C,Macaya C

更新日期：1995-11-01 00:00:00

abstract：:Of 26,294 consecutive patients monitored in a comprehensive drug surveillance program, 1067 (4 per cent) received methyldopa for treatment of hypertension. Adverse reactions attributed to methyldopa were reported in 149 patients (14 per cent), the most frequent being hypotension. Life-threatening adverse effects were ...

journal_title：American heart journal

authors： Lawson DH,Gloss D,Jick H

更新日期：1978-11-01 00:00:00

abstract：:The aim of this study was to determine whether paroxysmal atrial fibrillation (PAF) and/or restoration to sinus rhythm with electric or pharmacologic cardioversion induce modifications to the coagulation system. Thirty-five patients with PAF undergoing either electric (n = 11) or pharmacologic (n = 24) cardioversion w...

journal_title：American heart journal

authors： Giansante C,Fiotti N,Miccio M,Altamura N,Salvi R,Guarnieri G

更新日期：2000-09-01 00:00:00

abstract：:Anesthetized dogs were cooled to a core body temperature of 26 degree C. or maintained at a body temperature of 37 degree C. during periods of 5 and 10 hours of LAD coronary artery occlusion. Subsequent macroscopic dehydrogenase enzyme mapping showed that ischemic injury was 25 per cent less after 5 hours of coronary ...

journal_title：American heart journal

authors： Abendschein DR,Tacker WA Jr,Babbs CF

更新日期：1978-12-01 00:00:00

abstract：:To determine whether any differences exist in results of treatment of restenosis with repeat angioplasty when the procedure is performed during diagnosis or, as an alternative, when it is performed as a separate elective procedure, we prospectively compared the outcome of 48 consecutive procedures (including 51 lesion...

journal_title：American heart journal

authors： Alfonso F,Macaya C,Iñiguez A,Zarco P

更新日期：1990-02-01 00:00:00

abstract：:The relationship between coronary artery size and left ventricular (LV) muscle mass was studied in 10 control subjects and in 10 patients with chronic mitral regurgitation before and 28 +/- 15 months after mitral valve surgery. Left and right coronary artery size was determined by quantitative coronary arteriography. ...

journal_title：American heart journal

authors： Vassalli G,Hess OM,Krogmann ON,Villari B,Corin WJ,Turina M,Krayenbuehl HP

更新日期：1993-11-01 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

authors： Kourliouros A,Savelieva I,Kiotsekoglou A,Jahangiri M,Camm J

更新日期：2009-02-01 00:00:00

abstract：:We assessed the safety of early (2 to 4 days) intravenous dipyridamole infusion in conjunction with technetium 99m sestamibi tomographic myocardial perfusion imaging in patients with first myocardial infarction (MI). Early risk stratification with myocardial perfusion imaging of patients after acute MI may be useful t...

journal_title：American heart journal

authors： Heller GV,Brown KA,Landin RJ,Haber SB

更新日期：1997-07-01 00:00:00

abstract：:The electrocardiographic QT interval, with a wide variety of practical and theoretic applications in medicine, pharmacology, and cardiology, is critically dependent on heart rate as expressed by cycle length (RR). To account for this and permit intraindividual and interindividual comparisons of changing QT intervals, ...

journal_title：American heart journal

authors： Spodick DH,Rifkin RD,Rajasingh MC

更新日期：1990-07-01 00:00:00

abstract：:One hundred thirty-three patients with dilated heart failure, 80 with coronary artery disease, and 53 with idiopathic dilated cardiomyopathy were followed for a mean of 29 months. Patients with ischemic heart disease had a worse prognosis than those classified as having idiopathic cardiomyopathy. Features from history...

journal_title：American heart journal

authors： Kelly TL,Cremo R,Nielsen C,Shabetai R

更新日期：1990-05-01 00:00:00

abstract：:In chronic heart failure (CHF) the contributing role of increased sympathetic activity and hemodynamic dysfunction in the genesis of ventricular arrhythmias has not been well established. To assess the relation between severe ventricular arrhythmias, hemodynamic impairment, and autonomic nervous system derangement, 14...

journal_title：American heart journal

authors： Mortara A,La Rovere MT,Pinna GD,Parziale P,Maestri R,Capomolla S,Opasich C,Cobelli F,Tavazzi L

更新日期：1997-11-01 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

abstract：BACKGROUND:The American Heart Association recommends women with congenital heart defects (CHD) receive contraceptive counseling early in their reproductive years, but little is known about contraceptive method use among women with CHD. We describe recent female sterilization and reversible prescription contraceptive me...

journal_title：American heart journal

authors： Anderson KN,Tepper NK,Downing K,Ailes EC,Abarbanell G,Farr SL

更新日期：2020-04-01 00:00:00