Histopathology of the conducting tissue of the heart in Chagas' myocarditis.

abstract：:To investigate the incidence and clinical significance of postoperative pericardial effusion (PE), the presence of PE was evaluated by echocardiography, 1 and 2 weeks postoperatively, in 50 patients after insertion of a valve prosthesis and in 100 patients after coronary bypass surgery (50 patients receiving a combina...

journal_title：American heart journal

authors： Ikäheimo MJ,Huikuri HV,Airaksinen KE,Korhonen UR,Linnaluoto MK,Tarkka MR,Takkunen JT

更新日期：1988-07-01 00:00:00

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

authors： Morise AP,Olson MB,Merz CN,Mankad S,Rogers WJ,Pepine CJ,Reis SE,Sharaf BL,Sopko G,Smith K,Pohost GM,Shaw L

更新日期：2004-06-01 00:00:00

abstract：:The safety and therapeutic benefits of percutaneous transluminal coronary angioplasty of the left anterior descending coronary artery, the left circumflex coronary artery or both were assessed in 61 patients with chronic (greater than 3 months) occlusion of the right coronary artery. Recanalization of the right corona...

journal_title：American heart journal

authors： De Bruyne B,Renkin J,Col J,Wijns W

更新日期：1991-08-01 00:00:00

abstract：:Plasma concentrations of immunoreactive alpha-human atrial natriuretic polypeptide (i alpha-hANP) and cyclic guanosine monophosphate (cGMP) were measured in 70 patients with heart disease. Plasma concentrations of i alpha-hANP were directly related to the severity of heart disease (F = 29.61, p less than 0.001). Plasm...

journal_title：American heart journal

authors： Hirata Y,Ishii M,Matsuoka H,Sugimoto T,Iizuka M,Uchida Y,Serizawa T,Sato H,Kohmoto O,Mochizuki T

更新日期：1987-06-01 00:00:00

abstract：:Patients with intractable heart failure (New York Heart Association [NYHA] class III and IV) who were receiving maximal conventional treatment were enrolled in an outpatient program that included inotropic infusions, intensive patient education, and close follow-up. The effects of this approach to therapy were evaluat...

journal_title：American heart journal

authors： Marius-Nunez AL,Heaney L,Fernandez RN,Clark WA,Ranganini A,Silber E,Denes P

更新日期：1996-10-01 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:The risk for reinfarctions and delays in reperfusion after streptokinase therapy may be caused by the antifibrinolytic effect of platelet-derived type 1 plasminogen activator inhibitor (PAI-1). This study aims to show the relation of pretreatment PAI-1 levels of patients with acute myocardial infarction trea...

journal_title：American heart journal

authors： Sinkovic A

更新日期：1998-09-01 00:00:00

abstract：:Clinical and electrophysiologic characteristics associated with spontaneous and inducible atrial fibrillation and ventricular tachyarrhythmia were assessed in 20 consecutive patients with Wolff-Parkinson-White (WPW) syndrome undergoing surgical division (n = 12) or transcatheter electrical ablation (n = 8) of accessor...

journal_title：American heart journal

authors： Waspe LE,Brodman R,Kim SG,Fisher JD

更新日期：1986-12-01 00:00:00

abstract：BACKGROUND:Several non-vitamin K antagonist oral anticoagulant (NOAC) alternatives to warfarin are available for stroke prevention in atrial fibrillation (AF). We aimed to describe the factors associated with selection of NOACs versus warfarin in patients with new onset AF. METHODS:The ORBIT-AF II study is a national,...

journal_title：American heart journal

authors： Steinberg BA,Shrader P,Thomas L,Ansell J,Fonarow GC,Gersh BJ,Hylek E,Kowey PR,Mahaffey KW,O'Brien EC,Singer DE,Peterson ED,Piccini JP,Outcomes Registry for Better Informed Treatment of Atrial Fibrillation (ORBIT-AF) Investigato

更新日期：2017-07-01 00:00:00

abstract：BACKGROUND:The optimal hydration strategy for prevention of contrast-induced acute kidney injury (AKI) remains unknown. The purpose of this meta-analysis is to compare the effectiveness of normal saline (NS) versus sodium bicarbonate hydration (NaHCO(3)) for prevention of contrast-induced AKI. METHODS:We performed a m...

journal_title：American heart journal

authors： Hogan SE,L'Allier P,Chetcuti S,Grossman PM,Nallamothu BK,Duvernoy C,Bates E,Moscucci M,Gurm HS

更新日期：2008-09-01 00:00:00

abstract：:The hemodynamic hallmark of hypertension is increased systemic vascular resistance, although this variable is usually not determined in hypertensive patients because it has generally required invasive procedures to measure cardiac output. Reliable, totally noninvasive methods are now available that measure cardiac out...

journal_title：American heart journal

authors： Franciosa JA

更新日期：1988-08-01 00:00:00

abstract：BACKGROUND:This report describes the long-term follow-up of transcatheter closure of patent ductus arteriosus (PDA) with 2 different modalities in 123 patients of diverse ages. METHODS AND RESULTS:Between October 1990 and August 1997, 123 patients underwent transcatheter PDA (1.9 to 7.5 mm) closure at a mean age of 6....

journal_title：American heart journal

authors： Janorkar S,Goh T,Wilkinson J

更新日期：1999-12-01 00:00:00

abstract：OBJECTIVES:We used virtual histology-intravascular ultrasound (VH-IVUS) to investigate the characteristics of culprit lesions in acute coronary syndromes (ACS). BACKGROUND:Autopsy studies of patients who died of ACS have shown that culprit atheromatous plaques almost always contain a large lipid-necrotic core covered ...

journal_title：American heart journal

authors： Cascón-Pérez JD,de la Torre-Hernández JM,Ruiz-Abellón MC,Martínez-Pascual M,Mármol-Lozano R,López-Candel J,Cano P,Fernández C,Ramos JL,Villegas M,Picó-Aracil F

更新日期：2013-03-01 00:00:00

abstract：:The pathophysiologic features and clinical manifestations of HCM have been elucidated by the introduction of several new diagnostic options. Knowledge of the molecular defects of HCM has advanced rapidly, and genetic screening studies have reemphasized the value of the standard electrocardiogram as an initial screenin...

journal_title：American heart journal

authors： Posma JL,van der Wall EE,Blanksma PK,van der Wall E,Lie KI

更新日期：1996-11-01 00:00:00

abstract：:The proximal flow convergence method of multiplying color Doppler aliasing velocity by flow convergence surface area has yielded a new means of quantifying flow rate by noninvasively derived measurements. Unlike previous methods of visualizing the turbulent jet of mitral regurgitation on color flow Doppler mapping, fl...

journal_title：American heart journal

authors： Zhang J,Jones M,Shandas R,Valdes-Cruz LM,Murillo A,Yamada I,Kang SU,Weintraub RG,Shiota T,Sahn DJ

更新日期：1993-02-01 00:00:00

abstract：:The effect of participation in cardiac rehabilitation on medical costs was determined by measuring hospitalization charges for cardiac admissions over a 3-year period in 580 post-coronary event patients (58% after coronary bypass surgery, 42% after myocardial infarction), of whom 230 entered a cardiac rehabilitation p...

journal_title：American heart journal

authors： Ades PA,Huang D,Weaver SO

更新日期：1992-04-01 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：:The duration of intravenous heparin therapy required to maintain patency of the infarct-related artery after intravenous streptokinase is uncertain. Twenty-eight patients were prospectively treated with 1.5 million units of intravenous streptokinase within 4 hours of onset of chest pain. Intravenous heparin was begun ...

journal_title：American heart journal

authors： Hays LJ,Beller GA,Moore CA,Burwell LR,Craddock GB,Gascho JA,Smucker ML,Tedesco C,Nygaard TW

更新日期：1988-04-01 00:00:00

abstract：:To assess the influence of viscosity and iodine concentration, three matched and standardized left coronary arteriograms were obtained in 20 patients using iopamidol (Isovue-370), ioversol (Optiray-320), and iohexol (Omnipaque-350). The order of contrast media was randomized and the administration of contrast was doub...

journal_title：American heart journal

authors： Kern MJ,Roth RA,Aguirre FV,Beauman G,Vogel R

更新日期：1992-01-01 00:00:00

abstract：:In 14 patients with severe congestive heart failure, the effects of captopril on the forearm circulation were evaluated with strain gauge plethysmography. Changes in plasma renin activity, angiotensin II, norepinephrine, epinephrine, bradykinin, prostaglandin E2, and 6-keto-prostaglandin F1 alpha concentrations were a...

journal_title：American heart journal

authors： Nishimura H,Kubo S,Ueyama M,Kubota J,Kawamura K

更新日期：1989-01-01 00:00:00

abstract：:Congenitally corrected transposition of the great arteries (ccTGA) is associated with various types of arrhythmia, including supraventricular tachycardia (SVT) and complete atrioventricular block (cAVB). Our study aims to characterize the arrhythmia burden, associated risk factors, arrhythmia mechanisms, and the long-...

journal_title：American heart journal

authors： Tseng WC,Huang CN,Chiu SN,Lu CW,Wang JK,Lin MT,Chen CA,Wu MH

更新日期：2021-01-01 00:00:00

abstract：:A significant diuretic and natriuretic response occurs during paroxysmal supraventricular tachycardia (SVT). Although the diuresis may be secondary to suppression of vasopressin secretion, the etiology of the natriuresis remains unexplained. To determine if atrial natriuretic factor (ANF) could contribute to the polyu...

journal_title：American heart journal

authors： Nicklas JM,DiCarlo LA,Koller PT,Morady F,Diltz EA,Shenker Y,Grekin RJ

更新日期：1986-11-01 00:00:00

abstract：:Meta-analyses of major outcome trials have demonstrated that the benefits of antihypertensive treatment for reduction of the incidence of stroke are entirely consistent with the benefits predicted from epidemiologic data; however, there remains a shortfall in the expected reduction of the incidence of coronary heart d...

journal_title：American heart journal

authors： Meredith PA

更新日期：1996-07-01 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 antiarrhythmic effects of mexiletine (n = 14) were compared to procainamide (n = 16) by a double-blind parallel protocol in 30 patients (group I) with frequent premature ventricular contractions (PVCs) (greater than 20/hr), and to amiodarone by an open-label sequential approach in 25 patients (mean left ventricula...

journal_title：American heart journal

authors： Nademanee K,Feld G,Hendrickson J,Intarachot V,Yale C,Heng MK,Singh BN

更新日期：1985-11-01 00:00:00

abstract：:To assess relative capabilities of magnetic resonance (MR) imaging and two-dimensional echocardiography (2DE) for evaluating regional contractile dysfunction in the left ventricle after a myocardial infarction, results from 22 concurrent MR (orthogonal-transaxial, ECG-gated, multiphasic, single-spin echo) and 2DE exam...

journal_title：American heart journal

authors： White RD,Cassidy MM,Cheitlin MD,Emilson B,Ports TA,Lim AD,Botvinick EH,Schiller NB,Higgins CB

更新日期：1988-01-01 00:00:00

abstract：:Radiofrequency-powered, thermal balloon angioplasty is a new technique that enhances luminal dilatation with less dissection than conventional angioplasty. The purpose of this study was to assess the effect of radiofrequency heating of balloon fluid on the pressure-volume mechanics of in vitro balloon angioplasty and ...

journal_title：American heart journal

authors： Mitchel JF,Fram DB,Aretz TA,Gillam LD,Woronick C,Waters DD,McKay RG

更新日期：1994-07-01 00:00:00

abstract：AIMS:The impact of estimated glomerular filtration rate (eGFR) on adverse events in patients with mechanical heart valves (MHVs) is unknown. We analyzed the independent association of eGFR and thromboembolism (TE), major bleeding, and mortality in patients with MHV in an observational cohort study. METHODS AND RESULTS...

journal_title：American heart journal

authors： Labaf A,Grzymala-Lubanski B,Själander A,Svensson PJ,Stagmo M

更新日期：2015-09-01 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：BACKGROUND:The effect of raloxifene on aortic elasticity in healthy postmenopausal women is unknown. The purpose of the present study was to examine the effect of raloxifene on aortic elasticity and cardiovascular structure and function in healthy postmenopausal women. METHODS:A randomized, crossover, double-blind, pl...

journal_title：American heart journal

authors： Tritos NA,Goepfert L,Kissinger KV,Katsimaglis G,Manning WJ,Danias PG

更新日期：2005-12-01 00:00:00