Effects of prostacyclin on systemic and coronary hemodynamics in the dog.

abstract：BACKGROUND:Strenuous exercise can be a major trigger for coronary thrombosis and it enhances platelet aggregation. METHODS:We evaluated the effect of antiplatelet therapy on shear stress-induced platelet aggregation (SIPA), in addition to agonist-induced aggregation, before and immediately after ergometer exercise in ...

journal_title：American heart journal

authors： Kitai T,Nishikawa M,Tanigawa T,Okinaka T,Wada H,Shiku H,Ikeda Y,Ito M,Isaka N,Nakano T

更新日期：2001-08-01 00:00:00

abstract：BACKGROUND:Previous studies have suggested that thrombolysis is used less often in blacks than in whites. However, whether the greater prevalence of contraindications or less specific electrocardiographic manifestations of myocardial infarction (MI) account for this difference is unclear. METHODS AND RESULTS:We studie...

journal_title：American heart journal

authors： Manhapra A,Khaja F,Syed M,Rybicki BA,Wulbrecht N,Alam M,Sabbah H,Goldstein S,Borzak S

更新日期：2000-08-01 00:00:00

abstract：:We tested the efficacy of microwave-frequency energy for ablating atrial tachycardia in eight open-chest dogs. Five other dogs served as controls. Atrial tachycardia was induced by direct application of aconitine crystals to the epicardial atrial surface or by injection of aconitine solution (0.15 mg/ml) into the righ...

journal_title：American heart journal

authors： Rho TH,Ito M,Pride HP,Waller B,Zipes DP

更新日期：1995-05-01 00:00:00

abstract：BACKGROUND:Few data are available on the temporal patterns of health resource utilization (HRU) and expenditures around paroxysmal supraventricular tachycardia (PSVT) diagnosis. This study assessed the longitudinal trends in HRU and expenditures in the 3 years preceding and subsequent to PSVT diagnosis. METHODS:Adult ...

journal_title：American heart journal

authors： Chew DS,Sacks NC,Emden MR,Preib MT,Cyr PL,Wood D,Pokorney SD

更新日期：2021-01-15 00:00:00

abstract：:To determine how early myocardial infarction can be detected, serial creatine kinase MB concentrations were sampled in 313 patients during triage of acute (less than 12 hours) chest pain. Serum was sampled on hospital arrival (baseline) and hourly for 3 hours (total of four samples). Creatine kinase MB concentrations ...

journal_title：American heart journal

authors： Marin MM,Teichman SL

更新日期：1992-02-01 00:00:00

abstract：BACKGROUND:Pulmonary vein antrum isolation (PVI) as a treatment of paroxysmal atrial fibrillation (AF) is associated with a high rate of success; however, outcomes for treating persistent and long-standing persistent AF with PVI alone are substantially lower and often require multiple procedures to maintain long-term f...

journal_title：American heart journal

authors： Lee RJ,Lakkireddy D,Mittal S,Ellis C,Connor JT,Saville BR,Wilber D

更新日期：2015-12-01 00:00:00

abstract：BACKGROUND:It has been shown that transient increase in left ventricular stiffness, assessed by Doppler-derived early filling deceleration time, occurs during the first 24 to 48 hours after myocardial infarction but returns to normal within several days. It has been reported that hyperbaric oxygen treatment has a favor...

journal_title：American heart journal

authors： Vlahović A,Nesković AN,Dekleva M,Putniković B,Popović ZB,Otasević P,Ostojić M

更新日期：2004-07-01 00:00:00

abstract：BACKGROUND:Chronic periodontal infection is associated with an increased risk of coronary heart disease. Although the mechanism responsible for the relationship between periodontal disease and cardiovascular events is not fully understood, it is hypothesized that the chronic inflammatory burden of periodontal disease m...

journal_title：American heart journal

authors： Elter JR,Hinderliter AL,Offenbacher S,Beck JD,Caughey M,Brodala N,Madianos PN

更新日期：2006-01-01 00:00:00

abstract：:This study compares the effectiveness of teaching the calculation of frontal plane QRS axis with the use of the classical versus the orderly electrocardiographic limb lead display. Eighty-three students from two environments were randomized into two groups and were taught to determine frontal plane axis with one of th...

journal_title：American heart journal

authors： Pahlm US,O'Brien JE,Pettersson J,Pahlm O,White T,Maynard C,Wagner GS

更新日期：1997-12-01 00:00:00

abstract：:An expression representative of the rate of change of ventricular power during ejection was derived. The primary advantages of the expression are its theoretical value and its ability to characterize ventricular performance. The rate of change of ventricular power, measured during ejection, is virtually free of assump...

journal_title：American heart journal

authors： Stein PD,Sabbah HN

更新日期：1976-02-01 00:00:00

abstract：:Three kinds of torso surface isopotential maps (measured, simulated, and difference maps) were delineated at every 1.5 (or 3) msec. during the QRS duration from the 85 unipolar lead ECG's led from the surface of a cylindrical torso model filled with perfusate and containing a canine heart undergoing Langendorff's perf...

journal_title：American heart journal

authors： Toyoshima H

更新日期：1976-08-01 00:00:00

abstract：BACKGROUND:Carvedilol therapy during congestive heart failure demonstrated a good efficacy in mortality rate reduction and in improvement of left ventricular (LV) systolic performance. However, currently there is not any finding about the drug's effect on diastolic filling. The aim of this study was to evaluate the eff...

journal_title：American heart journal

authors： Palazzuoli A,Carrera A,Calabria P,Puccetti L,Pastrorelli M,Pasqui AL,Auteri A,Bruni F

更新日期：2004-01-01 00:00:00

abstract：OBJECTIVES:In patients with severe heart failure additional therapeutic support with intravenous inotropic or vasodilator drugs is frequently used in the attempt to obtain hemodynamic control. The nature and extent to which diastolic filling, atrial function, and mitral regurgitation are modified by these drugs have no...

journal_title：American heart journal

authors： Capomolla S,Pozzoli M,Opasich C,Febo O,Riccardi G,Salvucci F,Maestri R,Sisti M,Cobelli F,Tavazzi L

更新日期：1997-12-01 00:00:00

abstract：:Women with coronary artery disease are less likely to undergo percutaneous transluminal coronary angioplasty (PTCA) because of the potential referral bias in favor of men with coronary artery disease in the use of invasive diagnostic procedures and interventions. This difference may represent a sex bias in the deliver...

journal_title：American heart journal

authors： Hussain KM,Estrada AQ,Kogan A,Dadkhah S,Foschi A

更新日期：1997-10-01 00:00:00

abstract：:The antihypertensive effects of the renin inhibitor enalkiren were compared with those of the angiotensin-converting enzyme inhibitor enalaprilat in 17 hypertensive patients (14 white, 3 black; mean age 57 years), whose renin systems had been stimulated by diuretic pretreatment. Patients were studied on 3 separate in-...

journal_title：American heart journal

authors： Neutel JM,Luther RR,Boger RS,Weber MA

更新日期：1991-10-01 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：:Sequential bedside electrophysiologic testing was performed over 22 hours at intervals of 1 to 2 hours in 13 patients with left-sided Kent bundles to assess possible daily variations in the capacity to electrically induce reciprocating tachycardia. In all patients the tachycardia involved the accessory pathway in retr...

journal_title：American heart journal

authors： Cinca J,Moya A,Bardají A,Figueras J,Rius J

更新日期：1987-08-01 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：:The isovolumic relaxation time (IVRT) is an important noninvasive index of left ventricular diastolic function. Despite its widespread use, however, the IVRT has not been related analytically to invasive parameters of ventricular function. Establishing such a relationship would make the IVRT more useful by itself and ...

journal_title：American heart journal

authors： Thomas JD,Flachskampf FA,Chen C,Guererro JL,Picard MH,Levine RA,Weyman AE

更新日期：1992-11-01 00:00:00

abstract：:Mechanisms responsible for the well-documented "protection" against myocardial ischemia and infarction in young women and subsequent loss of protection after menopause remain speculative. One possibility is that gender-related variables (such as endogenous hormone levels or regular loss of stored iron) alter the susce...

journal_title：American heart journal

authors： Przyklenk K,Ovize M,Bauer B,Kloner RA

更新日期：1995-06-01 00:00:00

abstract：:Metoprolol or placebo was gradually withdrawn during 1 week in 115 patients participating in a 3-year, double-blind, postinfarction study. During the first month after withdrawal mental symptoms and increased cardiac symptoms occurred significantly more frequently in the metoprolol group. Disabling symptoms requiring ...

journal_title：American heart journal

authors： Olsson G,Hjemdahl P,Rehnqvist N

更新日期：1984-09-01 00:00:00

abstract：:Detection of mild hypertension by a small number of casual blood pressures may be inaccurate for the determination of average blood pressure. Nonetheless, casual pressures remain the basis for the diagnosis and treatment of hypertensive patients. We compared casual and noninvasive ambulatory blood pressure monitoring ...

journal_title：American heart journal

authors： Krakoff LR,Eison H,Phillips RH,Leiman SJ,Lev S

更新日期：1988-10-01 00:00:00

abstract：:Inducible ventricular tachycardia frequently persists despite solitary class I antiarrhythmic drug therapy. To determine the effect of metoprolol as adjuvant therapy, 19 patients with clinical ventricular tachycardia with baseline inducible sustained monomorphic ventricular tachycardia and persistently inducible ventr...

journal_title：American heart journal

authors： Brodsky MA,Chough SP,Allen BJ,Capparelli EV,Orlov MV,Caudillo G

更新日期：1992-09-01 00:00:00

abstract：BACKGROUND:In the United States as well as globally, Asians are a growing proportion of patients presenting with non-ST-segment elevation myocardial infarction (NSTEMI), yet little is known about their longitudinal outcomes. METHODS:We linked Centers for Medicare & Medicaid claims data to detailed clinical data for 37...

journal_title：American heart journal

authors： Xu W,Holmes DN,Becker RC,Roe MT,Peterson ED,Wang TY

更新日期：2013-12-01 00:00:00

abstract：:Recently developed unstable angina clinical practice guidelines have recommended risk stratification with dipyridamole thallium-201 myocardial imaging in patients at "intermediate" pretest clinical risk who cannot exercise maximally. The prognostic value of predischarge dipyridamole technetium 99m sestamibi (MIBI) tom...

journal_title：American heart journal

authors： Stratmann HG,Tamesis BR,Younis LT,Wittry MD,Amato M,Miller DD

更新日期：1995-10-01 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：:The effects of cytochrome C, an electron carrier in the process of oxidative phosphorylation, on infarct size and regional left ventricular function after a coronary artery occlusion were investigated. Thus, in 30 dogs, 1 minute after left anterior descending coronary artery occlusion, 99mTc-labeled albumin microspher...

journal_title：American heart journal

authors： Zalewski A,Goldberg S,Krol R,Maroko PR

更新日期：1987-01-01 00:00:00

abstract：:A population of 2955 patients admitted to the hospital with acute myocardial infarction (AMI) was followed for 1 year after AMI or until death. Smokers as compared to nonsmokers were over 10 years younger (p less than 0.001) and had a lower prevalence of hypertension (p less than 0.01), congestive heart failure (p les...

journal_title：American heart journal

authors： Kelly TL,Gilpin E,Ahnve S,Henning H,Ross J Jr

更新日期：1985-09-01 00:00:00

abstract：:This study was designed to evaluate the relative diagnostic values of transthoracic (TTE) and transesophageal (TEE) echocardiography in the assessment of congenitally corrected transposition of the great arteries in adult patients. Twelve patients (mean age 29 years, range 21 to 39 years) with congenitally corrected t...

journal_title：American heart journal

authors： Caso P,Ascione L,Lange A,Palka P,Mininni N,Sutherland GR

更新日期：1998-01-01 00:00:00

abstract：:The effects of lorcainide, a new antiarrhythmic drug, on serum electrolytes and osmolality are described in a series of 33 patients with organic heart disease and complex ventricular arrhythmias treated with lorcainide. In eight patients, a mean decrease in serum Na+ of 8.25 +/- 3.2 mEq/L was observed after a single 2...

journal_title：American heart journal

authors： Somani P,Temesy-Armos PN,Leighton RF,Goodenday LS,Fraker TD Jr

更新日期：1984-12-01 00:00:00