Prognostic significance of coronary artery calcium in asymptomatic subjects with usual cardiovascular risk.

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：:Giant cell arteritis is a disease of the elderly which is more common than previously recognized. It is important to be aware of this condition because treatment effectively relieves symptoms and prevents serious complications. The disease is suggested when an elderly patient complains of constitutional symptoms, head...

journal_title：American heart journal

authors： Huston KA,Hunder GG

更新日期：1980-07-01 00:00:00

abstract：:The electrophysiologic characteristics of the denervated human heart were assessed in 14 cardiac transplant recipients. Conduction intervals and refractory periods were measured at pacing cycle lengths of 500 msec and 400 msec. The faster pacing rate caused lengthening of the AH interval (83 +/- 23 msec to 116 +/- 41 ...

journal_title：American heart journal

authors： Bexton RS,Nathan AW,Hellestrand KJ,Cory-Pearce R,Spurrell RA,English TA,Camm AJ

更新日期：1984-01-01 00:00:00

abstract：BACKGROUND:There is growing interest in assessing therapy for acute myocardial infarction. Because thrombolysis was not a study therapy in the GISSI-3 trial, the decision about thrombolysis was left to the responsible physicians. We evaluated the data on thrombolytic therapy among patients with acute myocardial infarct...

journal_title：American heart journal

authors： Bobbio M,Bergerone S,Maggioni AP,Malacrida R,Franzosi MG,Barlera S,Tognoni G,GISSI-3 Investigators.

更新日期：1998-03-01 00:00:00

abstract：:The stent delivery system (SDS) is a sheath-covered Palmaz-Schatz stent mounted on a 3.0, 3.5, or 4.0 mm compliant polyethylene balloon catheter; the balloon resists maximal inflation pressures of 5.7, 6.2, or 6.0 atm, respectively. It is postulated that these pressures are too low to obtain optimal stent deployment. ...

journal_title：American heart journal

authors： Kiemeneij F,Laarman G,Slagboom T

更新日期：1995-04-01 00:00:00

abstract：BACKGROUND:The aim of this study was to compare rate of onset, magnitude, and consistency of platelet inhibition after administration of prasugrel or clopidogrel and to relate platelet inhibition to systemic exposure to each active metabolite. Thienopyridines are prodrugs, metabolized in vivo to active metabolites that...

journal_title：American heart journal

authors： Brandt JT,Payne CD,Wiviott SD,Weerakkody G,Farid NA,Small DS,Jakubowski JA,Naganuma H,Winters KJ

更新日期：2007-01-01 00:00:00

abstract：:Programmed ventricular stimulation with a standard protocol that used up to three extrastimuli was compared prospectively with a short-to-long protocol and a two-site protocol in 77 consecutive patients undergoing electrophysiologic study in an attempt to increase the yield of ventricular tachycardia (VT) induction. T...

journal_title：American heart journal

authors： Simonson JS,Gang ES,Mandel W,Peter T

更新日期：1991-01-01 00:00:00

abstract：:Doxazosin, a selective alpha 1-inhibitor, was assessed for antihypertensive efficacy, effect on lipid parameters, and safety profile in 21 hypertensive patients with noninsulin-dependent diabetes mellitus. The study involved a 2- to 4-week baseline period, a 10-week period in which patients received doxazosin, 1 to 8 ...

journal_title：American heart journal

authors： Castrignano R,D'Angelo A,Pati T,Al Awady M,Tronca R,Crepaldi G

更新日期：1988-12-01 00:00:00

abstract：BACKGROUND:We assessed left atrial function in normal subjects and in patients with hypertrophic cardiomyopathy (HCM) by using Doppler echocardiography at the supine position and after sudden standing. METHODS AND RESULTS:Twenty-seven patients with hypertrophic obstructive cardiomyopathy (HOCM), 17 patients with HCM, ...

journal_title：American heart journal

authors： Dernellis J,Tsiamis E,Stefanadis C,Pitsavos C,Toutouzas P

更新日期：1998-12-01 00:00:00

abstract：BACKGROUND:The prevalence of acute myocardial infarction (AMI) has increased due to the recent definitions, but the magnitude of this effect using contemporary highly sensitive troponin assays is unclear. The objective of this study is to compare the diagnosis of AMI using a contemporary troponin I (cTnI) biomarker and...

journal_title：American heart journal

authors： Kavsak PA,MacRae AR,Lustig V,Bhargava R,Vandersluis R,Palomaki GE,Yerna MJ,Jaffe AS

更新日期：2006-07-01 00:00:00

abstract：:This prospective study evaluated the accuracy of phase analysis of scintigraphic imaging in defining the site of earliest ventricular activation in pediatric patients with electrophysiologic disorders. Twenty patients (10.8 +/- 5.5 years) with preexcitation (n = 16) or ventricular tachycardia (VT) (n = 4) were indepen...

journal_title：American heart journal

authors： Silka MJ,Chelsky R,Kron J,Wilson RA

更新日期：1993-02-01 00:00:00

abstract：:Late potentials have been shown to predict malignant ventricular arrhythmias and sudden cardiac death. To determine whether prolonged, strenuous activity is associated with the development of ventricular late potentials, signal-averaged electrocardiography was performed on 30 marathon runners before, immediately after...

journal_title：American heart journal

authors： Smith GS,Vacek JL,Wilson DB,Hawkins JW,Boyer TA

更新日期：1989-12-01 00:00:00

abstract：OBJECTIVE:The aim of this study is to examine ethnic differences in depressive symptoms and antidepressant treatment in a cohort of patients undergoing diagnostic coronary angiography. BACKGROUND:Coronary heart disease (CHD) is the leading cause of mortality in the United States, with an excess of mortality in African...

journal_title：American heart journal

authors： Waldman SV,Blumenthal JA,Babyak MA,Sherwood A,Sketch M,Davidson J,Watkins LL

更新日期：2009-01-01 00:00:00

abstract：:The rate and form of creatine kinase-MB (CK-MB) enzyme release following reflow to ischemic myocardium has not been specifically examined in man. In this investigation, we examined the combined CK-MB time-activity curves during acute transmural myocardial infarction (AMI) in a group of patients receiving conventional ...

journal_title：American heart journal

authors： Shell W,Mickle DK,Swan HJ

更新日期：1983-10-01 00:00:00

abstract：BACKGROUND:Current recommendations for antithrombotic therapy after drug-eluting stent (DES) implantation include prolonged dual antiplatelet therapy (DAPT) with aspirin and clopidogrel ≥12 months. However, the impact of such a regimen for all patients receiving any DES system remains unclear based on scientific eviden...

journal_title：American heart journal

authors： Feres F,Costa RA,Bhatt DL,Leon MB,Botelho RV,King SB 3rd,de Paula JE,Mangione JA,Salvadori D Jr,Gusmão MO,Castello H Jr,Nicolela E Jr,Perin MA,Devito FS,Marin-Neto JA,Abizaid A

更新日期：2012-12-01 00:00:00

abstract：BACKGROUND:Nitroglycerin is known to augment vessel wall squeezing at the site with coronary-myocardial bridging (CMB). This study was designed to define the mechanism of nitroglycerin-induced augmentation of CMB in clinical settings. METHODS:We analyzed nitroglycerin reactivity at the site with CMB in 39 patients. Ma...

journal_title：American heart journal

authors： Hongo Y,Tada H,Ito K,Yasumura Y,Miyatake K,Yamagishi M

更新日期：1999-08-01 00:00:00

abstract：:We studied the effect of propranolol administration on risk assessment based on submaximal exercise testing performed early after myocardial infarction. A total of 70 patients with recent infarction underwent modified Bruce treadmill testing with simultaneous measurement of expired gases in the absence of antianginal ...

journal_title：American heart journal

authors： Curtis JL,Houghton JL,Patterson JH,Koch G,Bradley DA,Adams KF Jr

更新日期：1991-06-01 00:00:00

abstract：BACKGROUND:Platelets play an important role in the natural history of coronary artery disease. Enhanced platelet aggregation and receptor expression unquestionably occur after coronary stent implantation; however, the functional characteristics of platelets before stenting have not been fully elucidated. METHODS:Plate...

journal_title：American heart journal

authors： Serebruany VL,Cummings CC,Malinin AI,Steinhubl SR,Gurbel PA

更新日期：2001-10-01 00:00:00

abstract：:Although it has been shown that early cardiac rejection can be visualized by radioimmunoscintigraphy targeting major histocompatibility complex class II antigen, the use of antibodies that bind to a polymorphic determinant of class II antigen has certain disadvantages for clinical application. This investigation was d...

journal_title：American heart journal

authors： Isobe M,Southern JF,Yazaki Y

更新日期：1994-05-01 00:00:00

abstract：:Several autoimmune diseases have been associated with increased frequencies of specific histocompatibility (HLA) antigens, particularly for the D (DR) locus, that may be linked to immune response genes. Rheumatic valvular heart disease (RHD) has been postulated to have autoimmune features, but HLA associations have no...

journal_title：American heart journal

authors： Anastasiou-Nana MI,Anderson JL,Carlquist JF,Nanas JN

更新日期：1986-11-01 00:00:00

abstract：:The acute and chronic cellular electrophysiologic actions of ketanserin, a selective blocker of 5-hydroxytriptamine (5-HT2) receptor, were examined in the isolated rabbit ventricular muscle. This work was prompted by the recent observations that small numbers of patients treated with hypertension develop QTc prolongat...

journal_title：American heart journal

authors： Kamiya K,Venkatesh N,Singh BN

更新日期：1988-06-01 00:00:00

abstract：:New postoperative electrocardiographic Q waves have been described in eight of 40 per cent of patients undergoing bypass grafting for coronary artery disease. Various theories have been proposed to explain these new Q waves. Correlations of new Q waves to vein bypass occlusion, prolonged pump time or aortic cross-clam...

journal_title：American heart journal

authors： Aintablian A,Hamby RI,Hoffman I,Weisz D,Voleti C,Wisoff BG

更新日期：1978-04-01 00:00:00

abstract：BACKGROUND:Knowledge of pressure gradients across valves, arteries, and ventricular septal defects (VSD) is important in patient management. It was determined how well such gradients can be estimated by auscultation of a murmur's frequencies. METHODS:In 151 patients with pulmonary stenosis (PS) (n = 77), aortic stenos...

journal_title：American heart journal

authors： Phoon CK

更新日期：2001-03-01 00:00:00

abstract：:Percutaneous transluminal coronary recanalization, a new therapeutic procedure used in acute myocardial infarction, offers significant reduction in mortality, as well as more effective limitation of the zone of infarction than has been possible with other pharmacologic treatment employed in the past. The risk of coron...

journal_title：American heart journal

authors： Rutsch W,Schartl M,Mathey D,Kuck K,Merx W,Dörr R,Rentrop P,Blanke H

更新日期：1981-12-01 00:00:00

abstract：BACKGROUND:During daytime working hours, outcomes may be worse when percutaneous coronary intervention (PCI) is performed later in the day because of operator fatigue and differences in process of care. METHODS:Using the APPROACH database, we analyzed 2,492 consecutive nonurgent PCI procedures performed during working...

journal_title：American heart journal

authors： Cantor WJ,Strauss BH,Graham MM,Southern DA,Woo K,Tyrrell B,Knudtson M,Ghali WA

更新日期：2010-06-01 00:00:00

abstract：BACKGROUND:After the Mustard or Senning procedure, adults with transposition of the great arteries may have right ventricular failure and require consideration of new therapies. A 2-stage arterial switch operation (ASO) may be performed as an alternative to heart transplantation. This procedure is relatively successful...

journal_title：American heart journal

authors： Benzaquen BS,Webb GD,Colman JM,Therrien J

更新日期：2004-03-01 00:00:00

abstract：:An acute thrombus at the proximal border of a high-grade atherosclerotic obstruction is the usual cause of myocardial infarction. Although intracoronary thrombolysis is potentially an exciting new therapy for reducing the extent of myocardial infarction by lysing coronary clot, a number of major difficulties limit its...

journal_title：American heart journal

authors： Spann JF,Sherry S,Carabello BA,Mann RH,McCann WD,Gault JH,Gentzler RD,Rosenberg KM,Maurer AH,Denenberg BS,Warner HF,Rubin RN,Malmud LS,Comerota A

更新日期：1982-10-01 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：:Cardiac arrhythmias arise from disturbances in the functioning of the specific ion channels that normally control excitation or from the functional expression of previously latent channels. Antiarrhythmic agents act by blocking the membrane sodium, potassium, and calcium channels, but no agent has exclusive action on ...

journal_title：American heart journal

authors： Grant AO Jr

更新日期：1992-04-01 00:00:00

abstract：BACKGROUND:The treatment of cocaine-related acute coronary syndromes presents unique challenges. Although percutaneous coronary intervention in cocaine abusers appears to be safe in the short term, longer-term outcomes have not been reported. We postulated that cocaine use would be associated with increased risk for st...

journal_title：American heart journal

authors： McKee SA,Applegate RJ,Hoyle JR,Sacrinty MT,Kutcher MA,Sane DC

更新日期：2007-07-01 00:00:00