Further observations on entrainment of atrial flutter in the dog.

abstract：BACKGROUND:Late prognosis after infective endocarditis has not been systematically studied in large series of patients with different underlying heart conditions in recent years. METHODS:We studied an inception cohort study of 420 patients discharged after treatment of endocarditis from a university tertiary care hosp...

journal_title：American heart journal

authors： Mansur AJ,Dal Bó CM,Fukushima JT,Issa VS,Grinberg M,Pomerantzeff PM

更新日期：2001-01-01 00:00:00

abstract：BACKGROUND:Diabetic nephropathy is associated with increased cardiovascular events. Coronary atherosclerosis is responsible for many of these events, but other mechanisms such as impaired flow reserve may be involved. The purpose of this study was to define the prevalence and mechanism of abnormal coronary velocity res...

journal_title：American heart journal

authors： Ragosta M,Samady H,Isaacs RB,Gimple LW,Sarembock IJ,Powers ER

更新日期：2004-06-01 00:00:00

abstract：:Ambulatory ECG recordings were obtained from 313 consecutive, totally symptom-free male subjects on whom cardiac catheterization was subsequently performed for occupational reasons. These recordings were examined for ventricular ectopy and the results were studied in relation to the findings on selective coronary angi...

journal_title：American heart journal

authors： Batchelor AJ,Kruyer WB,Hickman JR Jr

更新日期：1989-06-01 00:00:00

abstract：BACKGROUND:Physician adherence to guidelines is often poor, but the reasons have not been completely studied. We investigated whether physician adherence to guidelines for percutaneous transluminal coronary angioplasty (PTCA) and coronary artery bypass grafting (CABG) varied by source, development methods, or the exten...

journal_title：American heart journal

authors： Leape LL,Weissman JS,Schneider EC,Piana RN,Gatsonis C,Epstein AM

更新日期：2003-01-01 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：BACKGROUND:Atrial fibrillation (AF) is a major risk factor for stroke and systemic embolism. Trials comparing warfarin with non-vitamin K oral anticoagulants (NOACs) have demonstrated that, when compared with warfarin, the NOACs are at least as effective in preventing stroke, although detailed analyses characterizing s...

journal_title：American heart journal

authors： Geller BJ,Giugliano RP,Braunwald E,Murphy SA,Hanyok JJ,Jin J,Mercuri M,Antman EM,Ruff CT

更新日期：2015-10-01 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：:The present experiments were conducted on isolated dog hearts to demonstrate that conduction disturbances can be induced in the bundle branches by transection of about 50 per cent of the cross-sectional area of the His bundle on the right or left side. The His bundle, the posterior and anterior divisions of left bundl...

journal_title：American heart journal

authors： Fabregas RA,Tse WW,Han J

更新日期：1976-09-01 00:00:00

abstract：BACKGROUND:Our goal was to evaluate cross-sectionally the association between ideal risk factor (IRF) profile and the presence and severity of subclinical atherosclerosis measured as coronary artery calcium (CAC) in the Brazilian Longitudinal Study of Adult Health. METHODS:We included 4,077 participants with no prior ...

journal_title：American heart journal

authors： Bensenor IM,Goulart AC,Santos IS,Bittencourt MS,Pereira AC,Santos RD,Nasir K,Blankstein R,Lotufo PA

更新日期：2016-04-01 00:00:00

abstract：:To assess the relation between myocardial ischemia, ventricular arrhythmias (VA), and left ventricular (LV) dysfunction, we evaluated 74 patients with coronary artery disease (CAD) using radionuclide angiography (to determine the resting ejection fraction [EF]), resting thallium-201 scintigraphy (to ascertain the exte...

journal_title：American heart journal

authors： Edlin DE,Morganroth J,Iskandrian AS,Speilman SR,Horowitz LN,Kay H

更新日期：1985-02-01 00:00:00

abstract：:Atrial fibrillation is a common disease of the elderly, conferring considerable morbidity and mortality related to cardiovascular effects and thromboembolic risks. Anticoagulation, antiarrhythmic medications, and rate control are the cornerstone of contemporary management, whereas ablation and evolving surgical techni...

journal_title：American heart journal

authors： Hui DS,Morley JE,Mikolajczak PC,Lee R

更新日期：2015-04-01 00:00:00

abstract：:Our experience with the use of five new antiarrhythmic drugs for treating life-threatening arrhythmias in children will be briefly reviewed. Prevention of recurrent episodes of atrial flutter with digoxin and local anesthetic antiarrhythmic drugs often is only moderately successful, benefiting 65% of patients. Amiodar...

journal_title：American heart journal

authors： Moak JP,Smith RT,Garson A Jr

更新日期：1987-01-01 00:00:00

abstract：:To investigate the mechanisms of restenosis and detect useful interventions to prevent it, reliable quantitative measurements must be evaluated. Coronary arteries of domestic and minipigs (n = 18) were mechanically injured by balloon overstretching and killed at different intervals (2 to 25 weeks) after quantitative a...

journal_title：American heart journal

authors： Bonan R,Paiement P,Scortichini D,Cloutier MJ,Leung TK

更新日期：1993-12-01 00:00:00

abstract：BACKGROUND:Comparing the dose-response of a new drug to that of a previously studied drug can aid in understanding their relative potencies. Two dose-finding studies addressed the effect of a new drug, rosuvastatin, on its ability to decrease low-density lipoprotein cholesterol (LDL-C) levels. One of these studies incl...

journal_title：American heart journal

authors： Berry DA,Berry SM,McKellar J,Pearson TA

更新日期：2003-06-01 00:00:00

abstract：BACKGROUND:The inverse relation between alcohol intake and clinical coronary artery disease (CAD) is well established, although the mechanisms remain speculative. We studied the relation between alcohol intake and subclinical CAD to assess the possible role of alcohol in atherogenesis. METHODS:We conducted a prospecti...

journal_title：American heart journal

authors： Tofferi JK,Taylor AJ,Feuerstein IM,O'Malley PG

更新日期：2004-11-01 00:00:00

abstract：:A retrospective analysis of our experience with intraprocedural thrombus complicating percutaneous transluminal coronary angioplasty (PTCA) was undertaken. Of 983 PTCA procedures reviewed, 62 (6.3%) were complicated by thrombus. Patients were managed conservatively (group I, n = 18), with redilation (group II, n = 17)...

journal_title：American heart journal

authors： Vaitkus PT,Herrmann HC,Laskey WK

更新日期：1992-07-01 00:00:00

abstract：BACKGROUND:Prescribing rate control medications with or without antiarrhythmic drugs is often the first course treatment for atrial fibrillation (AF). Clinical trial data suggest that antiarrhythmic drugs are only marginally effective and have multiple drawbacks, whereas rate control alone is sufficient for most patien...

journal_title：American heart journal

authors： Vaughan-Sarrazin MS,Mazur A,Chrischilles E,Cram P

更新日期：2014-07-01 00:00:00

abstract：:Out of 156 patients with stable coronary heart disease randomized to either an exercise intervention group or a control group, 41 had complete gas analysis data. Continuous gas exchange data, including the ventilatory threshold, and selected heart rates were determined initially and at 1 year. The mean attendance for ...

journal_title：American heart journal

authors： Sullivan M,Ahnve S,Froelicher VF,Meyers J

更新日期：1985-03-01 00:00:00

abstract：BACKGROUND:With one-quarter of initial myocardial infarctions (MI) being unrecognized MI (UMI), recognition is critical to minimize further cardiovascular risk. Diabetes mellitus is an established risk factor for UMI. If impaired fasting glucose (IFG) also increased the risk for UMI, it would represent a significant pu...

journal_title：American heart journal

authors： Stacey RB,Leaverton PE,Schocken DD,Peregoy JA,Bertoni AG

更新日期：2015-11-01 00:00:00

abstract：:We altered the mechanical activity of the atrial myocardium in open-chest dogs and measured changes in coronary blood flow distribution, using the radioactive microsphere technique. When left and right atrial pressures were decreased to 2 mm Hg by hypovolemia, atrial coronary blood flow fell to values nearly 50% below...

journal_title：American heart journal

authors： Neill WA,Sewell DH,Gosalia KP,Kingsley EM,Oxendine JM

更新日期：1983-09-01 00:00:00

abstract：BACKGROUND:The purpose of this investigation was to quantify the amount of intralesional calcium detected by intravascular ultrasound (IVUS) compared with undecalcified histology in human arteries. This method preserves intralesional calcium and reduces sectioning artifacts, thereby providing an accurate measure of cal...

journal_title：American heart journal

authors： Kostamaa H,Donovan J,Kasaoka S,Tobis J,Fitzpatrick L

更新日期：1999-03-01 00:00:00

abstract：:Guidelines published in 2001 recommended 1 regional adult congenital heart disease (ACHD) center per 3 to 10 million population. Our objective was to determine if published guidelines on the numbers of regional ACHD centers are sufficient to meet the needs of adults with congenital heart disease in the general populat...

journal_title：American heart journal

authors： Marelli AJ,Therrien J,Mackie AS,Ionescu-Ittu R,Pilote L

更新日期：2009-01-01 00:00:00

abstract：:The effect of the reperfusion on myocardial infarction has been studied in the rat in order to assess the possible reversibility of myocardial damage. The present study deals with reperfusion of experimental myocardial infarction in the rat. Two groups of animals were compared: one was subjected to permanent ischemia ...

journal_title：American heart journal

authors： Deloche A,Fabiani JN,Camilleri JP,Relland J,Joseph D,Carpentier A,Dubost C

更新日期：1977-03-01 00:00:00

abstract：:Clinically available automatic implantable defibrillators use a monophasic truncated exponential waveform shock; after delivery the charge remaining on the device's capacitors is "dumped" internally and wasted. The efficacy of a monophasic and biphasic truncated exponential defibrillation waveform produced by a single...

journal_title：American heart journal

authors： Fain ES,Sweeney MB,Franz MR

更新日期：1989-02-01 00:00:00

abstract：:Resting measurements of left ventricular systolic function do not reliably predict exercise capacity in patients with cardiac disease. Therefore left ventricular filling shortly after a myocardial infarction was prospectively studied to determine whether it could predict subsequent exercise time. Consecutive patients ...

journal_title：American heart journal

authors： Finkelhor RS,Sun JP,Bahler RC

更新日期：1990-01-01 00:00:00

abstract：BACKGROUND:Treatment strategies, either invasive or noninvasive, for patients with unstable coronary artery disease still vary. There are no published studies comparing the strategies for health-related quality of life. METHODS:A total of 2457 patients with unstable coronary artery disease were randomized. We prospect...

journal_title：American heart journal

authors： Janzon M,Levin LA,Swahn E

更新日期：2004-07-01 00:00:00

abstract：BACKGROUND:Patients with atrial fibrillation (AF) are at increased risk for ischemic stroke. In patients who have suffered a stroke, screening for AF is routinely performed only for a short period after the stroke as part of the evaluation for possible causes. If AF is detected after an ischemic stroke, oral anticoagul...

journal_title：American heart journal

authors： Sinha AM,Diener HC,Morillo CA,Sanna T,Bernstein RA,Di Lazzaro V,Passman R,Beckers F,Brachmann J

更新日期：2010-07-01 00:00:00

abstract：BACKGROUND:Early reperfusion therapy improves the clinical outcomes of patients with acute myocardial infarction (AMI), but benefits are limited by reperfusion injury in some patients. We examined the effect of nicorandil, a hybrid of K(ATP) channel opener and nicotinamide nitrate, on reactive oxygen species (ROS) form...

journal_title：American heart journal

authors： Ono H,Osanai T,Ishizaka H,Hanada H,Kamada T,Onodera H,Fujita N,Sasaki S,Matsunaga T,Okumura K

更新日期：2004-10-01 00:00:00

abstract：OBJECTIVES:To characterize patient profile and hemodynamic profile of those undergoing intra-aortic balloon pump (IABP) for cardiogenic shock and define predictors of hemodynamic failure of IABP support. BACKGROUND:Clinical characteristics of IABP support in cardiogenic shock not related to acute myocardial infarction...

journal_title：American heart journal

authors： Hsu S,Kambhampati S,Sciortino CM,Russell SD,Schulman SP

更新日期：2018-05-01 00:00:00

abstract：BACKGROUND:Anginal chest pain without creatine kinase (CK) elevation is frequently observed in the first hours after coronary stenting. Possible causes of ischemic episodes are microembolism, side branch occlusion, coronary vasospasm, and disturbances of microvascular circulation. In a prospective, double-blind, random...

journal_title：American heart journal

authors： Kurz DJ,Naegeli B,Bertel O

更新日期：2000-01-01 00:00:00