Dynamic QRS complex and ST segment vectorcardiographic monitoring can identify vessel patency in patients with acute myocardial infarction treated with reperfusion therapy.

abstract：:The aim of this study was to assess the relative value of exercise echocardiography and perfusion single-photon emission computed tomography (SPECT) in identifying the presence and severity of coronary artery stenosis. Accordingly, 44 consecutive patients with stenosis in one vessel performed simultaneous postexercise...

journal_title：American heart journal

authors： Salustri A,Pozzoli MM,Hermans W,Ilmer B,Cornel JH,Reijs AE,Roelandt JR,Fioretti PM

更新日期：1992-07-01 00:00:00

abstract：BACKGROUND:Despite significant attention to resuscitation care by hospitals, national data on trends in the incidence and survival of patients with inhospital cardiac arrest (IHCA) are limited. OBJECTIVE:To determine trends and hospital-level variation in the incidence and outcomes associated with IHCA. In exploratory...

journal_title：American heart journal

authors： Bradley SM,Kaboli P,Kamphuis LA,Chan PS,Iwashyna TJ,Nallamothu BK

更新日期：2017-11-01 00:00:00

abstract：:Serum digoxin and/quinidine concentration were measured before and following the institution of quinidine therapy in 11 patients who were receiving maintenance oral digoxin therapy and who required quinidine therapy for suppression of extrasystoles. Steady-state serum digoxin concentrations after quinidine administra...

journal_title：American heart journal

authors： Friedman HS,Chen TS

更新日期：1982-07-01 00:00:00

abstract：:Coronary arterial stenosis of varying severity and length were created in open-chest dogs. The reactive hyperemic responses (RHR) to 15 second occlusions were used to produce flow increases and judge the physiological significance of the narrowings. RHR are sensitive indices of functional impairment when resting flow ...

journal_title：American heart journal

authors： Hillis WS,Friesinger GC

更新日期：1976-12-01 00:00:00

abstract：:There has been skepticism since the early days of open heart surgery that good long-term or even short-term results were possible with repair of pure mitral insufficiency. The authors report 145 patients in whom a markedly insufficient mitral valve was repaired 6 months to 17 years previously and another 55 patients i...

journal_title：American heart journal

authors： Kay JH,Zubiate P,Mendez MA,Vanstrom N,Yokoyama T

更新日期：1978-08-01 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:Recent experimental studies have suggested that the angiogenic cytokines hepatocyte growth factor (HGF) and vascular endothelial growth factor (VEGF) may play a role in the pathogenesis of congestive heart failure (CHF). The aim of the present study was to test the hypothesis that HGF and VEGF concentrations...

journal_title：American heart journal

authors： Lamblin N,Susen S,Dagorn J,Mouquet F,Jude B,Van Belle E,Bauters C,de Groote P

更新日期：2005-07-01 00:00:00

abstract：:Despite the well-proven benefits of cardiac rehabilitation and exercise training, no data are available on the benefits of this therapy in patients with preserved baseline exercise capacity. Therefore we assessed data before and after phase II cardiac rehabilitation and exercise programs at two large teaching institut...

journal_title：American heart journal

authors： Lavie CJ,Milani RV

更新日期：1994-12-01 00:00:00

abstract：BACKGROUND:Clinical trials have helped clarify the efficacy of clopidogrel for the treatment and prevention of vascular disease. Costs for its use exceeded $5.9 billion in 2005, making it the second greatest source of drug expenditure in the world. However, little is known about the appropriateness of that use. Overuse...

journal_title：American heart journal

authors： Choudhry NK,Levin R,Avorn J

更新日期：2008-05-01 00:00:00

abstract：OBJECTIVES:The DANHEART trial is a multicenter, randomized (1:1), parallel-group, double-blind, placebo-controlled study in chronic heart failure patients with reduced ejection fraction (HFrEF). This investigator driven study will include 1500 HFrEF patients and test in a 2 × 2 factorial design: 1) if hydralazine-isoso...

journal_title：American heart journal

authors： Wiggers H,Køber L,Gislason G,Schou M,Poulsen MK,Vraa S,Nielsen OW,Bruun NE,Nørrelund H,Hollingdal M,Barasa A,Bøttcher M,Dodt K,Hansen VB,Nielsen G,Knudsen AS,Lomholdt J,Mikkelsen KV,Jonczy B,Brønnum-Schou J,Poenar

更新日期：2021-01-01 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:Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia and is associated with an increased risk of stroke, heart failure, and death. Data on contemporary treatment patterns and outcomes associated with AF in clinical practice are limited. METHODS/DESIGN:The Outcomes Registry for Better Inf...

journal_title：American heart journal

authors： Piccini JP,Fraulo ES,Ansell JE,Fonarow GC,Gersh BJ,Go AS,Hylek EM,Kowey PR,Mahaffey KW,Thomas LE,Kong MH,Lopes RD,Mills RM,Peterson ED

更新日期：2011-10-01 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：:The role of prostaglandins in mediating the hemodynamic response to nitroglycerin in vivo is controversial. To determine the effect of inhibiting prostaglandin production on the response to nitroglycerin, either placebo or aspirin (650 mg) was administered 1 hour prior to the administration of nitroglycerin (432 micro...

journal_title：American heart journal

authors： Levin RI,Feit F

更新日期：1988-07-01 00:00:00

abstract：:Right- and left-sided endocarditis are two distinct entities, both clinically and experimentally. As such, they require different clinical approaches. The accurate diagnosis of right-sided endocarditis rests largely on a high index of suspicion which is often raised in the case of an intravenous drug abuser with fever...

journal_title：American heart journal

authors： Robbins MJ,Soeiro R,Frishman WH,Strom JA

更新日期：1986-01-01 00:00:00

abstract：BACKGROUND:Peculiar asynergy, which consists of hypokinesis or akinesis from the mid portion to the apical area and hyperkinesis of the basal area on contrast left ventriculogram, is rare. Because the end-systolic left ventriculogram looks like a "tako-tsubo," which was used for trapping octopuses in Japan, we proposed...

journal_title：American heart journal

authors： Kurisu S,Sato H,Kawagoe T,Ishihara M,Shimatani Y,Nishioka K,Kono Y,Umemura T,Nakamura S

更新日期：2002-03-01 00:00:00

abstract：:After dipyridamole, canine studies have demonstrated a slower rate of myocardial thallium-201 clearance from zones distal to a coronary artery stenosis compared to normal zones. To determine if criteria based on canine myocardial thallium-201 clearance rates could be applied clinically, 40 patients with and 26 patient...

journal_title：American heart journal

authors： Okada RD,Dai YH,Boucher CA,Pohost GM

更新日期：1984-03-01 00:00:00

abstract：INTRODUCTION:It has been demonstrated that skin tissue cholesterol (SkinTc) is associated with angiographic disease. Now, we further delineate the relative risk of multivessel disease (>50% stenosis in at least two vessels) in the conjoint presence of high SkinTc and high traditional risk burden. METHODS:Patients sche...

journal_title：American heart journal

authors： Sprecher DL,Pearce GL

更新日期：2006-10-01 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：:The effects of handgrip and supine bicycle exercise on hemodynamics and left ventricular (LV) performance were compared in 25 patients with moderate to severe aortic regurgitation (AR) and normal LV ejection fraction at rest (greater than or equal to 50%) and in 10 control subjects. In both groups, heart rate, systoli...

journal_title：American heart journal

authors： Shen WF,Fletcher PJ,Roubin GS,Choong CY,Hutton BF,Harris PJ,Kelly DT

更新日期：1985-06-01 00:00:00

abstract：:Quinidine serum levels and pharmacokinetic data were assessed during steady state therapy with oral quinidine sulfate in 19 hospitalized patients who were being treated for ventricular arrhythmias. A new high performance liquid chromatography assay was employed. Four patients were studied both after the first dose of ...

journal_title：American heart journal

authors： Carliner NH,Crouthamel WG,Fisher ML,Mugmon MA,Vassar DL,Narang PK,Plotnick GD

更新日期：1979-12-01 00:00:00

abstract：BACKGROUND:Although monitoring the clinical status of patients with heart failure rests at the core of clinical medicine, the ability of different techniques to reflect clinical change has not been evaluated. This study sought to describe changes in various measures of disease status associated with gradations of clini...

journal_title：American heart journal

authors： Spertus J,Peterson E,Conard MW,Heidenreich PA,Krumholz HM,Jones P,McCullough PA,Pina I,Tooley J,Weintraub WS,Rumsfeld JS,Cardiovascular Outcomes Research Consortium.

更新日期：2005-10-01 00:00:00

abstract：BACKGROUND:Although there is evidence linking smoking and heart failure (HF), the association between lifetime smoking exposure and HF in older adults and the strength of this association among current and past smokers is not well known. METHODS:We examined the association between smoking status, pack-years of exposur...

journal_title：American heart journal

authors： Gopal DM,Kalogeropoulos AP,Georgiopoulou VV,Smith AL,Bauer DC,Newman AB,Kim L,Bibbins-Domingo K,Tindle H,Harris TB,Tang WW,Kritchevsky SB,Butler J

更新日期：2012-08-01 00:00:00

abstract：:We investigated the relation between the angiographic collateral grade (Rentrop's classification) and the collateral flow velocity pattern in 43 patients with angina pectoris. Collateral flow velocity was measured with a Doppler guide wire during balloon occlusion in coronary angioplasty. Collateral flow was detected ...

journal_title：American heart journal

authors： Yamada T,Okamoto M,Sueda T,Hashimoto M,Kajiyama G

更新日期：1995-07-01 00:00:00

abstract：BACKGROUND:In patients with chronic heart failure, the use of carvedilol therapy induces clinical and hemodynamic improvement. However, although the benefits of this beta-blocker have been established in patients with chronic heart failure, the mechanisms underlying them and the changes in left ventricular systolic fun...

journal_title：American heart journal

authors： Capomolla S,Febo O,Gnemmi M,Riccardi G,Opasich C,Caporotondi A,Mortara A,Pinna GD,Cobelli F

更新日期：2000-04-01 00:00:00

abstract：:An extremely athletic 56-year-old male physician was found to have profound sinus bradycardia. His only symptom was markedly increased alertness while actively exercising. During pacemaker insertion he had an episode of prolonged sinus arrest terminated by a precordial thump. This case suggests that exercise can alter...

journal_title：American heart journal

authors： Marmor BM,Black MM

更新日期：1980-07-01 00:00:00

abstract：BACKGROUND:Percutaneous coronary intervention (PCI) of saphenous vein graft (SVG) is associated with frequent postprocedural enzyme elevation and late cardiac events. New strategies are proposed to minimize distal embolization and to improve the outcome of patients treated with stenting for SVG lesions. The objectives ...

journal_title：American heart journal

authors： Leborgne L,Cheneau E,Pichard A,Ajani A,Pakala R,Yazdi H,Satler L,Kent K,Suddath WO,Pinnow E,Canos D,Waksman R

更新日期：2003-09-01 00:00:00

abstract：:Ventricular late potentials at the end of the surface QRS, detected on the signal-averaged electrocardiogram (SAECG) have been shown to be markers for spontaneous and/or inducible ventricular tachycardia (VT) in patients with coronary artery disease (CAD). We examined the correlations between electrophysiologic study ...

journal_title：American heart journal

authors： Borbola J,Ezri MD,Denes P

更新日期：1988-04-01 00:00:00

abstract：BACKGROUND:Myocardial infarction (MI) with non-obstructive coronary arteries (MINOCA) is a recently recognized condition where biomarkers and prognosis are less well studied than in MI with obstructive coronary artery disease (MI-CAD). We therefore aimed to investigate the one-year prognostic value of high-sensitivity ...

journal_title：American heart journal

authors： Hjort M,Lindahl B,Baron T,Jernberg T,Tornvall P,Eggers KM

更新日期：2018-06-01 00:00:00

abstract：BACKGROUND:Although hospital admissions during weekends have been associated with worse quality of care and worse outcomes in some but not all medical conditions, the impact of weekend versus weekday admission and discharge for heart failure (HF) has not been well studied. This study investigates the association of (1)...

journal_title：American heart journal

authors： Horwich TB,Hernandez AF,Liang L,Albert NM,Labresh KA,Yancy CW,Fonarow GC,Get With Guidelines Steering Committee and Hospitals.

更新日期：2009-09-01 00:00:00