abstract：:To determine the rate of induction, specificity and evolution of electrically induced postmyocardial infarction ventricular arrhythmias, 10 dogs that underwent a sham operation and 20 dogs with experimental transmural apical myocardial infarction underwent serial closed chest electrophysiologic studies with programmed...

journal_title：Journal of the American College of Cardiology

authors： Garan H,Ruskin JN,McGovern B,Grant G

更新日期：1985-05-01 00:00:00

abstract：:Evaluation for patent ductus arteriosus by both Doppler examination and direct two-dimensional echocardiographic visualization has been reported in infants and children. However, visualization of a patent ductus arteriosus in preterm infants with lung disease has been difficult. Using a recently developed 7.5 MHz mech...

journal_title：Journal of the American College of Cardiology

authors： Vick GW 3rd,Huhta JC,Gutgesell HP

更新日期：1985-04-01 00:00:00

abstract：:To determine the incidence of cardioversion-induced ventricular arrhythmias in patients with therapeutic serum levels of digoxin, 19 patients (average age [+/- standard deviation] 61 +/- 12 years) undergoing elective direct current cardioversion for atrial fibrillation were studied. Only patients with therapeutic seru...

journal_title：Journal of the American College of Cardiology

authors： Mann DL,Maisel AS,Atwood JE,Engler RL,LeWinter MM

更新日期：1985-04-01 00:00:00

abstract：:A 72 year old woman was thought to have a paradoxically split second heart sound. Echocardiography with simultaneous phonocardiography revealed a late systolic click resulting from isolated tricuspid valve prolapse. Respiratory variation of the click in relation to the second heart sound resulted in an auscultatory ph...

journal_title：Journal of the American College of Cardiology

authors： Farrar MW,Engel PJ,Eppert D,Plummer S

更新日期：1985-03-01 00:00:00

abstract：:Intraaortic balloon counterpulsation was instituted in two adult patients whose condition was rapidly deteriorating because of critical decompensated valvular aortic stenosis. The acute hemodynamic effect of counterpulsation in these patients was compared with the effect of counterpulsation in three control patients w...

journal_title：Journal of the American College of Cardiology

authors： Folland ED,Kemper AJ,Khuri SF,Josa M,Parisi AF

更新日期：1985-03-01 00:00:00

abstract：:In patients with ischemic heart disease, fascicular conduction disturbances are associated with increased mortality. This study reveals that increased mortality also exists for certain types of fascicular conduction disturbances after myocardial revascularization. In 227 consecutive patients undergoing bypass surgery,...

journal_title：Journal of the American College of Cardiology

authors： Bateman TM,Weiss MH,Czer LS,Conklin CM,Kass RM,Stewart ME,Matloff JM,Gray RJ

更新日期：1985-03-01 00:00:00

abstract：:Using contrast-enhanced computed tomography, the effects of hyperosmolar mannitol and methylprednisolone on experimentally produced myocardial infarcts were evaluated serially over the course of approximately 1 month. Infarct size, initial perfusion defect (jeopardized segment) and noninfarcted muscle mass were determ...

journal_title：Journal of the American College of Cardiology

authors： Slutsky RA,Murray M

更新日期：1985-02-01 00:00:00

abstract：:Premature opening of the pulmonary valve in mid-diastole before atrial systole was observed during inspiration in a patient with extensive right ventricular infarction. Transient inspiratory elevation of right ventricular diastolic pressure to a level exceeding pulmonary artery pressure was documented. Although forwar...

journal_title：Journal of the American College of Cardiology

authors： Doyle T,Troup PJ,Wann LS

更新日期：1985-02-01 00:00:00

abstract：:Selective modification of atrioventricular (AV) nodal conduction, that is, induction of varying degrees of AV nodal delays or block (second or third degree), or both, was achieved with a pervenous laser catheter technique. In six adult mongrel dogs anesthetized with pentobarbital (Nembutal), 5F leads were placed throu...

journal_title：Journal of the American College of Cardiology

authors： Narula OS,Boveja BK,Cohen DM,Narula JT,Tarjan PP

更新日期：1985-02-01 00:00:00

abstract：:A methodology for computerized digital videoangiocardiography is briefly described. Single or biplane projection image series from the cardiovascular system are combined with the corresponding physiologic (electrocardiogram, blood pressure, etc.) reference data, digitized and stored as a block of simultaneously availa...

journal_title：Journal of the American College of Cardiology

authors： Heintzen PH,Bürsch HJ,Hahne HJ,Brennecke R,Budach W,Lange P

更新日期：1985-01-01 00:00:00

abstract：:The records of 90 patients with Wolff-Parkinson-White syndrome who presented with supraventricular tachycardia in the first 4 months of life were reviewed. Among these, 63% were male. Structural heart disease was present in 20%, most commonly Ebstein's anomaly. All patients presented with a regular narrow QRS tachycar...

journal_title：Journal of the American College of Cardiology

authors： Deal BJ,Keane JF,Gillette PC,Garson A Jr

更新日期：1985-01-01 00:00:00

abstract：:A case of interatrial septal aneurysm discovered by two-dimensional echocardiography and confirmed by ultrasound contrast technique is described. Previous reports are reviewed, emphasizing the differential diagnosis, prognosis and recommendations for follow-up. ...

journal_title：Journal of the American College of Cardiology

authors： Wysham DG,McPherson DD,Kerber RE

更新日期：1984-12-01 00:00:00

abstract：:Ventricular tachyarrhythmias associated with digitalis toxicity are believed to be due, in part, to cardiac glycoside-mediated increased central sympathetic neural activity. Because dopaminergic receptor agonists reduce sympathetic outflow, this study assessed effectiveness of the available dopaminergic agonist, bromo...

journal_title：Journal of the American College of Cardiology

authors： Kao A,Kriett JM,Tobler HG,Detloff BL,Pritzker MR,Benson DW Jr,Benditt DG

更新日期：1984-12-01 00:00:00

abstract：:Two patients with complete heart block complicating extensive anterior myocardial infarction underwent late (greater than 40 hours) coronary reperfusion with angioplasty. One to one atrioventricular conduction was restored within minutes of reperfusion despite a lack of measurable ventricular muscle salvage as demonst...

journal_title：Journal of the American College of Cardiology

authors： Wilber D,Walton J,O'Neill W,Laufer N,Pitt B

更新日期：1984-12-01 00:00:00

abstract：:Right ventricular function was assessed in 15 patients using right ventricular pressure-volume loops. Right ventricular pressure using a micromanometer-tipped catheter, thermodilution cardiac output and gated blood pool scintigrams were simultaneously obtained. To help isolate the right ventricle, a slant hole collima...

journal_title：Journal of the American College of Cardiology

authors： Friedman BJ,Lozner EC,Curfman GD,Herzberg D,Rolett EL

更新日期：1984-11-01 00:00:00

abstract：:Intraoperative two-dimensional contrast echocardiography was performed on 29 patients undergoing open heart surgery to determine the presence of mitral regurgitation before and immediately after the operative procedure: 14 patients had predominant mitral stenosis, 9 had severe mitral regurgitation and 6 had no mitral ...

journal_title：Journal of the American College of Cardiology

authors： Goldman ME,Mindich BP,Teichholz LE,Burgess N,Staville K,Fuster V

更新日期：1984-11-01 00:00:00

abstract：:During a period of 18 months beginning in January 1982, a total of 65 patients were referred to the Miami Heart Institute for evaluation of either aborted out of hospital sudden death, ventricular tachycardia resistant to standard clinically directed antiarrhythmic medication programs or high grade ventricular arrhyth...

journal_title：Journal of the American College of Cardiology

authors： Vignola PA,Aonuma K,Swaye PS,Rozanski JJ,Blankstein RL,Benson J,Gosselin AJ,Lister JW

更新日期：1984-10-01 00:00:00

abstract：:In 72 drug abusers surgically treated for acute infective endocarditis, 14 patients (19%) required surgical procedures on two valves. The predominant infecting organisms were Staphylococcus aureus and Pseudomonas aeruginosa (29%). In contrast to single valve infection, congestive heart failure was the most common oper...

journal_title：Journal of the American College of Cardiology

authors： Silverman NA,Levitsky S,Mammana R

更新日期：1984-10-01 00:00:00

abstract：:A computerized medical decision-making system was used to monitor signs and predisposing factors of digoxin intoxication in patients receiving digoxin. This process automatically reviewed the patient's data base nightly for drug interactions, laboratory data and electrocardiographic findings with known association wit...

journal_title：Journal of the American College of Cardiology

authors： White KS,Lindsay A,Pryor TA,Brown WF,Walsh K

更新日期：1984-09-01 00:00:00

abstract：:In a series of 24 consecutive patients referred to the echocardiography laboratory because of suspected patent foramen ovale, contrast two-dimensional and M-mode echocardiographic studies were performed during normal breathing and during two provocative tests: the Valsalva maneuver and cough. A right to left shunt was...

journal_title：Journal of the American College of Cardiology

authors： Dubourg O,Bourdarias JP,Farcot JC,Gueret P,Terdjman M,Ferrier A,Rigaud M,Bardet JC

更新日期：1984-09-01 00:00:00

abstract：:Thirty-five patients with previous myocardial infarction and 25 normal subjects underwent subcostal view two-dimensional echocardiography at rest and at peak up-right bicycle exercise. The purpose was to assess changes in left ventricular volume with maximal upright bicycle exercise and to compare the utility of the p...

journal_title：Journal of the American College of Cardiology

authors： Ginzton LE,Laks MM,Brizendine M,Conant R,Mena I

更新日期：1984-09-01 00:00:00

abstract：:Inadvertent puncture of the intrapericardial aorta is a serious complication of transseptal catheterization. Two-dimensional echocardiography allows delineation and spatial resolution of the aorta and interatrial septum. Thirteen patients underwent transseptal catheterization with simultaneous monitoring of needle and...

journal_title：Journal of the American College of Cardiology

authors： Kronzon I,Glassman E,Cohen M,Winer H

更新日期：1984-08-01 00:00:00

abstract：:Isochronal maps of ventricular activation were analyzed in dogs 1 to 5 days after infarction utilizing a 64 channel multiplexer. Only dogs in which circus movement reentry could not be induced by a single premature stimulus were analyzed. Reentrant rhythms could be successfully induced equally by multiple (double or t...

journal_title：Journal of the American College of Cardiology

authors： El-Sherif N,Mehra R,Gough WB,Zeiler RH

更新日期：1984-08-01 00:00:00

abstract：:The accuracy of a computer system that was developed for the analysis of ST segment changes recorded on Holter ambulatory electrocardiographic monitoring tapes was compared with conventional visual scrutiny, beat by beat analog printouts and a commercial J point trend system. The program calculates and plots multiple ...

journal_title：Journal of the American College of Cardiology

authors： Gallino A,Chierchia S,Smith G,Croom M,Morgan M,Marchesi C,Maseri A

更新日期：1984-08-01 00:00:00

abstract：:Progress in tissue characterization of myocardium with ultrasound suggests that quantitative recognition of ischemic or scarred tissue will be achieved. Despite the increasing recognition and importance of cardiomyopathy, its diagnosis generally requires invasive procedures such as cardiac catheterization and biopsy. ...

journal_title：Journal of the American College of Cardiology

authors： Pérez JE,Barzilai B,Madaras EI,Glueck RM,Saffitz JE,Johnston P,Miller JG,Sobel BE

更新日期：1984-07-01 00:00:00

abstract：:Methysergide ( Sansert ) has been associated with numerous fibrotic disorders. In particular, multiple cardiac lesions have been described in cases where methysergide was thought to have played a causative role. A patient is described who presented with cardiac findings suggestive of acute myopericarditis . An inflamm...

journal_title：Journal of the American College of Cardiology

authors： Harbin AD,Gerson MC,O'Connell JB

更新日期：1984-07-01 00:00:00

abstract：:A 2 year old boy with ventricular inversion and normal ventriculoarterial connection is described. Associated cardiac lesions included single atrium, absence of the coronary sinus, bilateral superior venae cavae, absence of the hepatic segment of the inferior vena cava with azygos and hemiazygos continuation, right ao...

journal_title：Journal of the American College of Cardiology

authors： Park SC,Siewers RD,Neches WH,Mathews RA,Fricker FJ,Beerman LB,Fischer DR,Zuberbuhler JR

更新日期：1984-07-01 00:00:00

abstract：:A total of 1,275 elderly patients (70 years and older) underwent coronary artery bypass alone from 1970 to 1981. The percent of elderly patients who underwent coronary bypass surgery alone increased from 2.04% in 1971 to 8.2% in 1981. Most of the patients had severe, disabling or unstable angina pectoris. The overall ...

journal_title：Journal of the American College of Cardiology

authors： Elayda MA,Hall RJ,Gray AG,Mathur VS,Cooley DA

更新日期：1984-06-01 00:00:00

abstract：:Lorcainide, a new antiarrhythmic agent with local anesthetic or membrane-stabilizing properties similar to those of quinidine, was tested in 76 patients with diverse types of heart disease and recurrent ventricular tachycardia or ventricular fibrillation. Lorcainide was administered for 72 to 96 hours in a dose rangin...

journal_title：Journal of the American College of Cardiology

authors： Chesnie B,Lampert S,Podrid P,Lown B

更新日期：1984-06-01 00:00:00

abstract：:The relation among right ventricular preload, afterload and ejection fraction in patients with mitral valve disease has not been well elucidated. In this study, measurements were made of intracardiac pressures and forward cardiac output during cardiac catheterization (n = 43), the ejection fraction by radionuclide ang...

journal_title：Journal of the American College of Cardiology

authors： Iskandrian AS,Hakki AH,Ren JF,Kotler MN,Mintz GS,Ross J,Kane SA

更新日期：1984-06-01 00:00:00

abstract：:Tricuspid regurgitation is often not apparent on physical examination and several methods are now available to aid in this difficult assessment. Cardiac catheterization using right ventriculography, previously considered the diagnostic standard, has several limitations. Currently available noninvasive tools such as M-...

journal_title：Journal of the American College of Cardiology

authors： DePace NL,Ross J,Iskandrian AS,Nestico PF,Kotler MN,Mintz GS,Segal BL,Hakki AH,Morganroth J

更新日期：1984-06-01 00:00:00

abstract：:Many Blalock-Taussig shunts (subclavian to pulmonary artery anastomoses) have been created and a significant number are still being done. Two cases of aneurysmal degeneration of a Blalock-Taussig shunt and their management are described. Development of this rare complication may be related to large shunt flow and long...

journal_title：Journal of the American College of Cardiology

authors： Scott WC,Zhao HX,Allen M,Kim D,Miller DC

更新日期：1984-05-01 00:00:00

abstract：:Alterations in the blood radioactivity affect ventricular volume calculations using count-based radionuclide ventriculography. To study this phenomenon, the effect of time, posture and supine exercise on blood radioactivity, red blood cell count and splenic radioactivity was evaluated. The red blood cell count, and bl...

journal_title：Journal of the American College of Cardiology

authors： Sandler MP,Kronenberg MW,Forman MB,Wolfe OH,Clanton JA,Partain CL

更新日期：1984-05-01 00:00:00

abstract：:After coronary occlusion, myocardium originally supplied by the occluded vessel ultimately separates into infarct and surviving muscle. To clarify this process, evolution of collateral blood flow to infarct and to surviving myocardium was retrospectively analyzed after permanent left anterior descending occlusion in 2...

journal_title：Journal of the American College of Cardiology

authors： Davenport N,Goldstein RE,Bolli R,Epstein SE

更新日期：1984-04-01 00:00:00

abstract：:Retrospective data on the treatment of aortic dissection at the Massachusetts General Hospital from 1963 to 1978 are reported. During this period, 160 patients with spontaneous aortic dissection were treated by definitive medical or definitive surgical therapy. Patients were classified according to type (proximal vers...

journal_title：Journal of the American College of Cardiology

authors： Doroghazi RM,Slater EE,DeSanctis RW,Buckley MJ,Austen WG,Rosenthal S

更新日期：1984-04-01 00:00:00

abstract：:Percutaneous transluminal coronary angioplasty was attempted without streptokinase in 24 patients with total coronary artery occlusion but without acute transmural myocardial infarction. The maximal duration of occlusion was estimated to be 1 week or less in 10 patients, more than 1 to 4 weeks in 6, more than 4 to 12 ...

journal_title：Journal of the American College of Cardiology

authors： Holmes DR Jr,Vlietstra RE,Reeder GS,Bresnahan JF,Smith HC,Bove AA,Schaff HV

更新日期：1984-03-01 00:00:00

abstract：:To simplify and clarify the methods of obtaining attenuation-corrected equilibrium radionuclide angiographic estimates of absolute left ventricular volumes, 27 patients who also had biplane contrast cineangiography were evaluated. Background-corrected left ventricular end-diastolic and end-systolic counts were obtaine...

journal_title：Journal of the American College of Cardiology

authors： Starling MR,Dell'Italia LJ,Walsh RA,Little WC,Benedetto AR,Nusynowitz ML

更新日期：1984-03-01 00:00:00

abstract：:Because previous reports have suggested that digitalis administration may lead to increased mortality after hospital discharge for acute myocardial infarction, the independent importance of digitalis therapy in long-term prognosis after acute myocardial infarction was investigated by analyzing 1,599 patients after def...

journal_title：Journal of the American College of Cardiology

authors： Madsen EB,Gilpin E,Henning H,Ahnve S,LeWinter M,Mazur J,Shabetai R,Collins D,Ross J Jr

更新日期：1984-03-01 00:00:00

abstract：:The normal anatomic relation of the anterior mitral leaflet to the left ventricular outflow tract suggests that significant aortic regurgitation should have a predictable hemodynamic effect on the motion and configuration of the leaflet, an effect that should be seen by two-dimensional echocardiography. Previous repor...

journal_title：Journal of the American College of Cardiology

authors： Robertson WS,Stewart J,Armstrong WF,Dillon JC,Feigenbaum H

更新日期：1984-02-01 00:00:00

abstract：:The St. Jude valve is a new bileaflet disc cardiac valve prosthesis designed to avoid some of the hemodynamic drawbacks of other prostheses. The in vivo flow characteristics of the St. Jude aortic valve (42 patients) were studied and compared with those of three other commonly used aortic prostheses. Björk-Shiley (12 ...

journal_title：Journal of the American College of Cardiology

authors： Gray RJ,Chaux A,Matloff JM,DeRobertis M,Raymond M,Stewart M,Yoganathan A

更新日期：1984-02-01 00:00:00