abstract：:Seventy adults who tested positive for human immunodeficiency virus (HIV) were prospectively studied with serial echocardiography to better define the prevalence and progression of cardiac disease in such patients. Fifty outpatients (Group A), including 44 with acquired immunodeficiency syndrome (AIDS) and 6 with AIDS...

journal_title：Journal of the American College of Cardiology

authors： Blanchard DG,Hagenhoff C,Chow LC,McCann HA,Dittrich HC

更新日期：1991-05-01 00:00:00

abstract：:Immediate and short-term cardiovascular effects of a new angiotensin-converting enzyme inhibitor, fosinopril, were assessed in 10 patients with mild to moderate essential hypertension. Administration of a 10 mg oral dose of fosinopril reduced mean arterial pressure (p less than 0.001) as a result of a 24% fall in tota...

journal_title：Journal of the American College of Cardiology

authors： Oren S,Messerli FH,Grossman E,Garavaglia GE,Frohlich ED

更新日期：1991-04-01 00:00:00

abstract：:The results of recatheterization were assessed in a select group of 95 patients enrolled in the Mansfield Scientific Aortic Valvuloplasty Registry to determine whether any procedural or patient-related variables at baseline predicted either initial immediate or follow-up (6.2 +/- 3.3 months) results. At the follow-up ...

journal_title：Journal of the American College of Cardiology

authors： Bashore TM,Davidson CJ

更新日期：1991-04-01 00:00:00

abstract：:Directional coronary atherectomy, a new transluminal procedure for treatment of obstructive lesions in coronary arteries by excision and removal of tissue, was performed on 447 lesions in 382 procedures. Successful outcome, defined as a reduction of stenosis by greater than or equal to 20% with a less than 50% residua...

journal_title：Journal of the American College of Cardiology

authors： Hinohara T,Rowe MH,Robertson GC,Selmon MR,Braden L,Leggett JH,Vetter JW,Simpson JB

更新日期：1991-04-01 00:00:00

abstract：:Clinical and necropsy findings are described in 56 patients with mitral valve prolapse: 15 patients, aged 16 to 69 years (mean 39), died suddenly and mitral valve prolapse was the only cardiac condition found at necropsy (hereafter called isolated mitral valve prolapse); the remaining 41 patients had other conditions ...

journal_title：Journal of the American College of Cardiology

authors： Dollar AL,Roberts WC

更新日期：1991-03-15 00:00:00

abstract：:The impact of right bundle branch block on long-term prognosis after anterior wall myocardial infarction is unclear. In 932 patients with Q wave anterior infarction, the short- and long-term prognostic significance of the presence of right bundle branch block was analyzed. Compared with 754 patients without block, 178...

journal_title：Journal of the American College of Cardiology

authors： Ricou F,Nicod P,Gilpin E,Henning H,Ross J Jr

更新日期：1991-03-15 00:00:00

abstract：:The purpose of this study was to investigate whether heart rate variability could be reliably assessed in patients with ventricular arrhythmias and to evaluate whether it is affected by antiarrhythmic drugs. The study was based on an analysis of 239 ambulatory electrocardiographic (ECG) recordings obtained from 67 pat...

journal_title：Journal of the American College of Cardiology

authors： Zuanetti G,Latini R,Neilson JM,Schwartz PJ,Ewing DJ

更新日期：1991-03-01 00:00:00

abstract：:The relation between left ventricular diastolic abnormalities and myocardial blood flow during ischemia was studied in eight open chest dogs with critical stenoses of the proximal left anterior descending and circumflex coronary arteries. The heart was paced at 1.7 times the heart rate at rest for 3 min. In dogs with ...

journal_title：Journal of the American College of Cardiology

authors： Momomura S,Ferguson JJ,Miller MJ,Parker JA,Grossman W

更新日期：1991-03-01 00:00:00

abstract：:The aim of this study was to compare, both subjectively and objectively, four modern rate-responsive pacing modes in a double-blind crossover design. Twenty-two patients, aged 18 to 81 years, had an activity-sensing dual chamber universal rate-responsive (DDDR) pacemaker implanted for treatment of high grade atriovent...

journal_title：Journal of the American College of Cardiology

authors： Sulke N,Chambers J,Dritsas A,Sowton E

更新日期：1991-03-01 00:00:00

abstract：:In a retrospective analysis 139 patients with hypertrophic cardiomyopathy were followed up for 8.9 years (range 1 to 28 years). Patients were divided into two groups: Group 1 consisted of 60 patients with medical therapy and Group 2 of 79 patients with surgical therapy (septal myectomy). Groups 1 and 2 were subdivided...

journal_title：Journal of the American College of Cardiology

authors： Seiler C,Hess OM,Schoenbeck M,Turina J,Jenni R,Turina M,Krayenbuehl HP

更新日期：1991-03-01 00:00:00

abstract：:Histopathologic examination was performed in 20 patients undergoing antemortem coronary angioplasty. Thirty-four lesions were dilated and the interval between coronary angioplasty and death ranged from several hours to 4 years. Intimal proliferation of smooth muscle cells, as a major cause of restenosis, was observed ...

journal_title：Journal of the American College of Cardiology

authors： Nobuyoshi M,Kimura T,Ohishi H,Horiuchi H,Nosaka H,Hamasaki N,Yokoi H,Kim K

更新日期：1991-02-01 00:00:00

abstract：:Among 126 consecutive patients undergoing percutaneous mitral valvuloplasty, 34 were judged to be at high risk for surgery on the basis of age greater than 70 years (n = 13), New York Heart Association functional class IV (n = 11), ejection fraction less than or equal to 35% (n = 3), severe pulmonary hypertension (n =...

journal_title：Journal of the American College of Cardiology

authors： Lefèvre T,Bonan R,Serra A,Crépeau J,Dyrda I,Petitclerc R,Leclerc Y,Vanderperren O,Waters D

更新日期：1991-02-01 00:00:00

abstract：:Recent experimental studies show that the opioid system is important to the pathophysiology of cardiovascular impairment in congestive heart failure. Plasma beta-endorphin levels were measured in 37 patients with congestive heart failure and compared with those of 21 age- and gender-matched normal subjects. The relati...

journal_title：Journal of the American College of Cardiology

authors： Kawashima S,Fukutake N,Nishian K,Asakuma S,Iwasaki T

更新日期：1991-01-01 00:00:00

abstract：:To determine the effect of increasing heart rate on mitral flow velocity variables, the time constant of left ventricular isovolumic relaxation and the transmitral pressure gradient, 16 lightly sedated, conscious dogs were studied with Doppler echocardiography during incremental right atrial pacing (n = 16) or the adm...

journal_title：Journal of the American College of Cardiology

authors： Appleton CP

更新日期：1991-01-01 00:00:00

abstract：:The feasibility of using a flexible, steerable angioscope to perform coronary angioscopy before and after percutaneous coronary angioplasty was tested. The microangioscope fits through an 8F coronary angioplasty guiding catheter and contains a multifiber viewing bundle incorporated into the body of a 4.3F balloon cath...

journal_title：Journal of the American College of Cardiology

authors： Ramee SR,White CJ,Collins TJ,Mesa JE,Murgo JP

更新日期：1991-01-01 00:00:00

abstract：:The current study determined the effectiveness of nicardipine, a 1,4-dihydropyridine calcium antagonist, in preserving reperfused myocardium in a cat model of temporary coronary occlusion and ascertained if replenishment of myocardial phosphate stores during reperfusion as defined by phosphorus-31 nuclear magnetic res...

journal_title：Journal of the American College of Cardiology

authors： Holt WW,Wendland MF,Derugin N,Wolfe C,Saeed M,Higgins CB

更新日期：1990-12-01 00:00:00

abstract：:Abnormalities in the fast Fourier transforms of signal-averaged electrocardiograms (ECGs) obtained during sinus rhythm appear to distinguish patients with ischemic heart disease and sustained monomorphic ventricular tachycardia from those without ventricular tachycardia. This study was performed to determine the power...

journal_title：Journal of the American College of Cardiology

authors： Lindsay BD,Ambos HD,Schechtman KB,Arthur RM,Cain ME

更新日期：1990-12-01 00:00:00

abstract：:The initial and late outcome of coronary angioplasty was studied in 148 patients less than 40 years of age (mean 36.4 +/- 3). Angioplasty was performed on a single vessel in 70% of patients and on multiple vessels in 30%; it was performed on a totally occluded vessel in 20%. Angioplasty was successful in 90.5% of pati...

journal_title：Journal of the American College of Cardiology

authors： Webb JG,Myler RK,Shaw RE,Anwar A,Stertzer SH

更新日期：1990-12-01 00:00:00

abstract：:Resistance of coronary occlusive thrombus to thrombolytic therapy, found in some patients with acute myocardial infarction, may be due to the presence of platelet-rich coronary clot. Reperfusion therapy in such patients may require the development and evaluation of alternative strategies in animal models. Therefore, p...

journal_title：Journal of the American College of Cardiology

authors： Yasuda T,Gold HK,Leinbach RC,Saito T,Guerrero JL,Jang IK,Holt R,Fallon JT,Collen D

更新日期：1990-12-01 00:00:00

abstract：:Serum levels of DHEA sulfate are inversely associated with cardiovascular death in men, and urinary dehydroepiandrosterone (DHEA) levels are inversely associated with clinical manifestations of coronary artery disease. These observations may be related to the antiproliferative effects of DHEA, resulting in inhibition ...

journal_title：Journal of the American College of Cardiology

authors： Herrington DM,Gordon GB,Achuff SC,Trejo JF,Weisman HF,Kwiterovich PO Jr,Pearson TA

更新日期：1990-11-01 00:00:00

abstract：:Between January 1983 and October 1989, 290 patients underwent an arterial switch operation for transposition of the great arteries; 30 (10.3%) of the patients had abnormalities of the left ventricular outflow tract or mitral valve, or both. These abnormalities included isolated pulmonary valve stenosis (n = 9), septal...

journal_title：Journal of the American College of Cardiology

authors： Wernovsky G,Jonas RA,Colan SD,Sanders SP,Wessel DL,Castanñeda AR,Mayer JE Jr

更新日期：1990-11-01 00:00:00

abstract：:Although valved conduits have been used successfully in severe forms of right ventricular-pulmonary artery discontinuity, progressive valved conduit stenosis is an important clinical problem. To determine the feasibility of reducing right heart valved conduit stenosis with a balloon expandable stent, a baboon model wa...

journal_title：Journal of the American College of Cardiology

authors： Almagor Y,Prevosti LG,Bartorelli AL,Keren G,Ferrans VJ,Jones M,Leon MB

更新日期：1990-11-01 00:00:00

abstract：:A spectrum of left ventricular diastolic filling abnormalities noted on Doppler echocardiography has been demonstrated in patients with cardiac amyloidosis. To determine how these filling abnormalities evolve over time and the significance of any change, serial pulsed wave Doppler studies of left ventricular inflow we...

journal_title：Journal of the American College of Cardiology

authors： Klein AL,Hatle LK,Taliercio CP,Taylor CL,Kyle RA,Bailey KR,Seward JB,Tajik AJ

更新日期：1990-11-01 00:00:00

abstract：:The Coronary Artery Surgery Study (CASS) includes 780 patients with mild or moderate stable angina pectoris or asymptomatic survivors of a myocardial infarction who were randomized to either medical or surgical therapy and 1,319 patients who were eligible for randomization but were not randomized (randomizable patient...

journal_title：Journal of the American College of Cardiology

authors： Chaitman BR,Ryan TJ,Kronmal RA,Foster ED,Frommer PL,Killip T

更新日期：1990-11-01 00:00:00

abstract：:Heart rate variability has been demonstrated both experimentally and clinically to be of prognostic importance in determining mortality after myocardial infarction. However, no paired studies have been reported to examine heart rate variability before and after myocardial infarction. The hypothesis was tested that low...

journal_title：Journal of the American College of Cardiology

authors： Hull SS Jr,Evans AR,Vanoli E,Adamson PB,Stramba-Badiale M,Albert DE,Foreman RD,Schwartz PJ

更新日期：1990-10-01 00:00:00

abstract：:An international survey identified 40 patients less than 20 years old who underwent surgical implantation of an automatic implantable cardioverter-defibrillator (AICD). There was a history of aborted sudden cardiac death or sustained ventricular tachycardia in 92.5% of these patients. Twenty-two patients (55%) had str...

journal_title：Journal of the American College of Cardiology

authors： Kron J,Oliver RP,Norsted S,Silka MJ

更新日期：1990-10-01 00:00:00

abstract：:To evaluate acute and follow-up changes in left ventricular diastolic performance, simultaneous digital left ventriculography and micromanometry were performed in 49 patients undergoing aortic balloon valvuloplasty. All patients improved symptomatically after valvuloplasty, and 26 returned 6.3 +/- 1.5 months later for...

journal_title：Journal of the American College of Cardiology

authors： Sheikh KH,Davidson CJ,Honan MB,Skelton TN,Kisslo KB,Bashore TM

更新日期：1990-10-01 00:00:00

abstract：:Transesophageal Doppler color flow imaging was performed in 19 adult patients (mean age 35 years) with an atrial septal defect demonstrated by cardiac catheterization or at surgery, or both. The transesophageal study correctly identified and classified 19 of 19 shunts in contrast to 16 of 18 shunts identified by the t...

journal_title：Journal of the American College of Cardiology

authors： Mehta RH,Helmcke F,Nanda NC,Hsiung M,Pacifico AD,Hsu TL

更新日期：1990-10-01 00:00:00

abstract：:To evaluate the effectiveness and cost of low osmolarity, nonionic contrast agents for cardiac angiography, 443 patients were randomized to receive either iopamidol or diatrizoate. All adverse events that occurred within 24 h of the procedure were recorded prospectively by study personnel and classified according to p...

journal_title：Journal of the American College of Cardiology

authors： Hlatky MA,Morris KG,Pieper KS,Davidson CJ,Schwab SJ,Bashore TM

更新日期：1990-10-01 00:00:00

abstract：:Concomitant use of a pacemaker and an automatic implantable cardioverter-defibrillator (AICD) is common. Seventeen percent of patients receiving an AICD at The Johns Hopkins Hospital also had a permanent pacemaker implanted before (16 patients), at the same time as (2 patients) or after (12 patients) AICD implantation...

journal_title：Journal of the American College of Cardiology

authors： Calkins H,Brinker J,Veltri EP,Guarnieri T,Levine JH

更新日期：1990-09-01 00:00:00

abstract：:Endocardial catheter ablation with direct current high voltage shocks was performed in a patient with recurrent syncope due to a catecholamine-sensitive ventricular tachycardia that was drug refractory and occurred in the absence of identifiable heart disease. Pace mapping and catheter activation mapping of the sponta...

journal_title：Journal of the American College of Cardiology

authors： Stevenson WG,Nademanee K,Weiss JN,Wiener I

更新日期：1990-09-01 00:00:00

abstract：:The comparative effects of intravenous aspirin, the synthetic thrombin inhibitor (2R,4R)-4-methyl-1-[N2-(3-methyl-1,2,3,4-tetrahydro-8- quinolinesulfonyl)-L-arginyl]-2-piperidinecarboxylic acid monohydrate (Argatroban) and F(ab')2 fragments of monoclonal antibody 7E3 against platelet glycoprotein IIb/IIIa (7E3-F[ab']2...

journal_title：Journal of the American College of Cardiology

authors： Yasuda T,Gold HK,Yaoita H,Leinbach RC,Guerrero JL,Jang IK,Holt R,Fallon JT,Collen D

更新日期：1990-09-01 00:00:00

abstract：:In a multicenter study, 390 patients with sustained symptomatic ventricular tachycardia or ventricular fibrillation late after acute myocardial infarction were prospectively followed up to assess determinants of mortality and recurrence of arrhythmic events. Patients were given standard antiarrhythmic treatment, which...

journal_title：Journal of the American College of Cardiology

authors： Willems AR,Tijssen JG,van Capelle FJ,Kingma JH,Hauer RN,Vermeulen FE,Brugada P,van Hoogenhuyze DC,Janse MJ

更新日期：1990-09-01 00:00:00

abstract：:The feasibility and effectiveness of low energy synchronous transcatheter cardioversion of atrial flutter and fibrillation were examined in dogs with talc-induced pericarditis. A conventional electrode catheter was positioned transvenously in the right atrial appendage. Atrial flutter/fibrillation was induced by using...

journal_title：Journal of the American College of Cardiology

authors： Kumagai K,Yamanouchi Y,Tashiro N,Hiroki T,Arakawa K

更新日期：1990-08-01 00:00:00

abstract：:Sixty patients with recurrent inducible sustained ventricular tachycardia were prospectively treated with nadolol (40 or 80 mg/day). Old myocardial infarction was present in 43 patients and dilated cardiomyopathy in 12. In group I (n = 36), nadolol was given alone, whereas in group II (n = 24), previously ineffective ...

journal_title：Journal of the American College of Cardiology

authors： Leclercq JF,Leenhardt A,Lemarec H,Clémenty J,Hermida JS,Sebag C,Aliot E

更新日期：1990-08-01 00:00:00

abstract：:Several studies in the prethrombolytic era on the treatment of acute myocardial infarction identified selected variables from the patient's history, physical examination, chest roentgenogram and electrocardiogram that could be used to estimate mortality in patients with evolving infarction. To extend such assessment t...

journal_title：Journal of the American College of Cardiology

authors： Hillis LD,Forman S,Braunwald E

更新日期：1990-08-01 00:00:00

abstract：:A multicenter clinical trial was initiated to test the potential safety and short-term efficacy of a percutaneous coronary application of laser balloon angioplasty, which has been shown experimentally to alleviate the common causes (dissection, recoil, thrombus) of suboptimal luminal results of conventional balloon an...

journal_title：Journal of the American College of Cardiology

authors： Spears JR,Reyes VP,Wynne J,Fromm BS,Sinofsky EL,Andrus S,Sinclair IN,Hopkins BE,Schwartz L,Aldridge HE

更新日期：1990-08-01 00:00:00

abstract：:The effects of two calcium channel blockers, diltiazem (270 mg/day) and verapamil (240 mg/day), were studied in 18 patients with chronic atrial fibrillation. During 24 h Holter electrocardiographic monitoring, mean ventricular rate (beats/min) decreased from 88 +/- 14 with placebo to 76 +/- 13 (p less than 0.001) with...

journal_title：Journal of the American College of Cardiology

authors： Lundström T,Rydén L

更新日期：1990-07-01 00:00:00

abstract：:Twenty-seven patients (mean age 57 +/- 7 years) underwent surgery for control of recurrent drug-refractory ventricular tachyarrhythmias (uniform ventricular tachycardia alone in 9 patients, ventricular tachycardia and ventricular fibrillation in 15 and ventricular fibrillation alone in 3) within 2 months of acute myoc...

journal_title：Journal of the American College of Cardiology

authors： Bourke JP,Hilton CJ,McComb JM,Cowan JC,Tansuphaswadikul S,Kertes PJ,Campbell RW

更新日期：1990-07-01 00:00:00

abstract：:Syncope in apparently normal patients has been attributed to an inhibitory reflex originating in cardiac sensory receptors. The reflex may be elicited by upright tilt with or without isoproterenol infusion. In this study, an upright 90 degree tilt protocol was evaluated in 20 young patients aged 7 to 22 years with syn...

journal_title：Journal of the American College of Cardiology

authors： Pongiglione G,Fish FA,Strasburger JF,Benson DW Jr

更新日期：1990-07-01 00:00:00