Doppler and two-dimensional echocardiographic diagnosis of Björk-Shiley prosthetic valve malfunction: importance of interventricular septal motion and the timing of onset of valve flow.

abstract：OBJECTIVES:We sought to determine the prevalence of treatable left ventricular (LV) systolic dysfunction (LVSD) in patients who present with their first noncardiac vascular episode. BACKGROUND:Screening for LV dysfunction in patients who present with their first stroke (cerebrovascular accident), their first transient...

journal_title：Journal of the American College of Cardiology

authors： Kelly R,Staines A,MacWalter R,Stonebridge P,Tunstall-Pedoe H,Struthers AD

更新日期：2002-01-16 00:00:00

abstract：OBJECTIVES:To evaluate whether use of beta-adrenergic blocking agents, alone or in combination with specific antiarrhythmic therapy, is associated with improved survival in persons with ventricular fibrillation (VF) or symptomatic ventricular tachycardia (VT). BACKGROUND:The ability of beta-blockers to alter the morta...

journal_title：Journal of the American College of Cardiology

authors： Exner DV,Reiffel JA,Epstein AE,Ledingham R,Reiter MJ,Yao Q,Duff HJ,Follmann D,Schron E,Greene HL,Carlson MD,Brodsky MA,Akiyama T,Baessler C,Anderson JL

更新日期：1999-08-01 00:00:00

abstract：:A large number of prosthetic heart valves (PHV) are being implanted in patients with both congenital and acquired valvular disease. Many of the recipients of such valves are women of childbearing age who desire to have children. The main issues involved with pregnancy in a patient with PHV include the selection of PHV...

journal_title：Journal of the American College of Cardiology

authors： Elkayam U,Bitar F

更新日期：2005-08-02 00:00:00

abstract：OBJECTIVES:This study sought to characterize the echocardiographic features of straddling mitral valve (SMV) and to determine its surgical implications and midterm outcome in a large clinical cohort. BACKGROUND:Despite a relatively large body of literature on the postmortem anatomy of SMV, there is a paucity of inform...

journal_title：Journal of the American College of Cardiology

authors： Fraisse A,del Nido PJ,Gaudart J,Geva T

更新日期：2001-09-01 00:00:00

abstract：:Nonionic contrast media are suggested to cause increased thromboembolism (in vivo), platelet aggregation and procoagulant effect (in vitro) as compared with ionic contrast media. To study these effects in vivo, 30 consecutive patients undergoing routine angiography were prospectively randomized to three groups of 10 p...

journal_title：Journal of the American College of Cardiology

authors： Arora R,Khandelwal M,Gopal A

更新日期：1991-06-01 00:00:00

abstract：OBJECTIVES:This study was designed to investigate whether an acute atorvastatin reload before percutaneous coronary intervention (PCI) protects patients receiving chronic statin therapy from periprocedural myocardial damage. BACKGROUND:Previous ARMYDA (Atorvastatin for Reduction of Myocardial Damage During Angioplasty...

journal_title：Journal of the American College of Cardiology

authors： Di Sciascio G,Patti G,Pasceri V,Gaspardone A,Colonna G,Montinaro A

更新日期：2009-08-04 00:00:00

abstract：OBJECTIVES:We evaluated the relationship between acute hemodynamic response (AHR) and reverse remodeling (RR) in cardiac resynchronization therapy (CRT). BACKGROUND:CRT reduces mortality and morbidity in heart failure patients; however, up to 30% of patients do not derive symptomatic benefit. Higher proportions do not...

journal_title：Journal of the American College of Cardiology

authors： Duckett SG,Ginks M,Shetty AK,Bostock J,Gill JS,Hamid S,Kapetanakis S,Cunliffe E,Razavi R,Carr-White G,Rinaldi CA

更新日期：2011-09-06 00:00:00

abstract：BACKGROUND:Circulating high-density lipoprotein particle (HDL-P) subfractions impact atherogenesis, inflammation, and endothelial function, all of which are implicated in the pathobiology of heart failure (HF). OBJECTIVES:The authors sought to identify key differences in plasma HDL-P subfractions between patients with...

journal_title：Journal of the American College of Cardiology

authors： Hunter WG,McGarrah RW 3rd,Kelly JP,Khouri MG,Craig DM,Haynes C,Felker GM,Hernandez AF,Velazquez EJ,Kraus WE,Shah SH

更新日期：2019-01-22 00:00:00

abstract：:Ascending (type I) aortic dissection carries a high morbidity and mortality. Proper identification of the proximal origin of the dissection and determination of concomitant aortic valve involvement significantly facilitate surgical repair, which may improve survival. In this case, intraoperative two-dimensional echoca...

journal_title：Journal of the American College of Cardiology

authors： Goldman ME,Guarino T,Mindich BP

更新日期：1985-11-01 00:00:00

abstract：:Although the use of oral anticoagulants (vitamin K antagonists) has been abandoned in primary cardiovascular prevention due to lack of a favorable benefit-to-risk ratio, the indications for aspirin use in this setting continue to be a source of major debate, with major international guidelines providing conflicting re...

journal_title：Journal of the American College of Cardiology

authors： Halvorsen S,Andreotti F,ten Berg JM,Cattaneo M,Coccheri S,Marchioli R,Morais J,Verheugt FW,De Caterina R

更新日期：2014-07-22 00:00:00

abstract：OBJECTIVES:The purpose of this study was to investigate whether therapy with nitroglycerin (GTN) would lead to abnormal coronary artery responses to the endothelium-dependent vasodilator acetylcholine. BACKGROUND:Nitroglycerin therapy is associated with specific biochemical changes in the vasculature that may lead to ...

journal_title：Journal of the American College of Cardiology

authors： Caramori PR,Adelman AG,Azevedo ER,Newton GE,Parker AB,Parker JD

更新日期：1998-12-01 00:00:00

abstract：OBJECTIVES:The present study examined whether sudden death in patients with hypertrophic cardiomyopathy occurred with a particular pattern of frequency throughout the day. BACKGROUND:Previous investigators have shown a circadian distribution in the occurrence of sudden death and other cardiovascular events in patients...

journal_title：Journal of the American College of Cardiology

authors： Maron BJ,Kogan J,Proschan MA,Hecht GM,Roberts WC

更新日期：1994-05-01 00:00:00

abstract：OBJECTIVES:The goal of this study was to determine the predictive value of pregnancy-associated plasma protein-A (PAPP-A) in patients with acute coronary syndromes (ACS). BACKGROUND:Pregnancy-associated plasma protein-A is a zinc-binding matrix metalloproteinase abundantly expressed in eroded and ruptured plaques and ...

journal_title：Journal of the American College of Cardiology

authors： Heeschen C,Dimmeler S,Hamm CW,Fichtlscherer S,Simoons ML,Zeiher AM,CAPTURE Study Investigators.

更新日期：2005-01-18 00:00:00

abstract：:Left ventricular isovolumic relaxation and the relation between relaxation and filling were studied in 90 patients with hypertrophic cardiomyopathy and 29 control subjects using radionuclide angiography. The isovolumic relaxation period was determined automatically on left ventricular time-activity curves as the inter...

journal_title：Journal of the American College of Cardiology

authors： Betocchi S,Bonow RO,Bacharach SL,Rosing DR,Maron BJ,Green MV

更新日期：1986-01-01 00:00:00

abstract：OBJECTIVES:This study was conducted to assess the relations among intracoronary ultrasound, angiographic and histologic data obtained from patients with coronary artery disease successfully treated by directional coronary atherectomy. In addition, it was designed to elucidate whether some aspects of intravascular ultra...

journal_title：Journal of the American College of Cardiology

authors： Suárez de Lezo J,Romero M,Medina A,Pan M,Pavlovic D,Vaamonde R,Hernández E,Melián F,López Rubio F,Marrero J

更新日期：1993-02-01 00:00:00

abstract：OBJECTIVES:This study sought to determine the relation between coronary calcification detected with ultrafast computed tomography and lumen narrowing defined with angiography and evaluated whether this relation is influenced by age and gender. BACKGROUND:Ultrafast computed tomography has been shown to be a sensitive m...

journal_title：Journal of the American College of Cardiology

authors： Devries S,Wolfkiel C,Fusman B,Bakdash H,Ahmed A,Levy P,Chomka E,Kondos G,Zajac E,Rich S

更新日期：1995-01-01 00:00:00

abstract：OBJECTIVES:This study was undertaken to examine the effects of coronary flow dynamics after thrombolysis on infarct size limitation. BACKGROUND:It has been commonly accepted that early thrombolysis does not necessarily salvage infarcted myocardium. Plausible causes for myocardial necrosis include such factors as elaps...

journal_title：Journal of the American College of Cardiology

authors： Komamura K,Kitakaze M,Nishida K,Naka M,Tamai J,Uematsu M,Koretsune Y,Nanto S,Hori M,Inoue M

更新日期：1994-08-01 00:00:00

abstract：OBJECTIVES:The aim of this study was to investigate the role of peripheral presynaptic alpha-2 adrenergic receptors in modulating norepinephrine (NE) release in congestive heart failure (CHF). BACKGROUND:Activation of the sympathetic nervous system is a hallmark of CHF. Clonidine, an imidazoline and adrenergic agonist...

journal_title：Journal of the American College of Cardiology

authors： Aggarwal A,Esler MD,Socratous F,Kaye DM

更新日期：2001-04-01 00:00:00

abstract：BACKGROUND:Persistent severe left ventricular (LV) systolic dysfunction after myocardial infarction (MI) is associated with increased mortality and is a class I indication for implantation of a cardioverter-defibrillator. OBJECTIVES:This study developed models and assessed independent predictors of LV recovery to >35%...

journal_title：Journal of the American College of Cardiology

authors： Brooks GC,Lee BK,Rao R,Lin F,Morin DP,Zweibel SL,Buxton AE,Pletcher MJ,Vittinghoff E,Olgin JE,PREDICTS Investigators.

更新日期：2016-03-15 00:00:00

abstract：OBJECTIVES:This study attempted to assess myocardial sympathetic innervation using iodine-123 (I-123) metaidobenzylguanidine (MIBG) imaging in patients with familial amyloid polyneuropathy. BACKGROUND:Signs and symptoms of cardiac autonomic dysfunction are commonly seen in patients with cardiac amyloidosis. However, t...

journal_title：Journal of the American College of Cardiology

authors： Tanaka M,Hongo M,Kinoshita O,Takabayashi Y,Fujii T,Yazaki Y,Isobe M,Sekiguchi M

更新日期：1997-01-01 00:00:00

abstract：:Atrial fibrillation is the most common sustained cardiac arrhythmia encountered in clinical practice. Atrial fibrillation increases with age and is relatively common (> 5%) in patients > 69 years old. Despite this, our understanding of the underlying electrophysiologic mechanisms and the optimal management remains inc...

journal_title：Journal of the American College of Cardiology

authors：

更新日期：1993-12-01 00:00:00

abstract：:Public reporting of hospital and individual provider quality of care measures is not a new concept. In the United States, the first national public reports of hospital mortality data occurred in 1986, and detailed physician-level data for cardiac surgery are now reported in 4 states. The development of the "Hospital C...

journal_title：Journal of the American College of Cardiology

authors： Dehmer GJ,Drozda JP Jr,Brindis RG,Masoudi FA,Rumsfeld JS,Slattery LE,Oetgen WJ

更新日期：2014-04-08 00:00:00

abstract：:The majority of studies generating normal echocardiographic reference values for left ventricular dimensions have been based on blindly performed M-mode measurements, and there are no previous reports based on two-dimensional echocardiography that provide a comprehensive analysis of the two-dimensional measurements fr...

journal_title：Journal of the American College of Cardiology

authors： Pearlman JD,Triulzi MO,King ME,Newell J,Weyman AE

更新日期：1988-12-01 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：OBJECTIVES:This study sought to evaluate the time course of improvement of left ventricular (LV) dysfunction in stable patients and its implications on the accuracy of dobutamine echocardiography for predicting improvement after surgical revascularization. BACKGROUND:Little is known about the optimal timing for evalua...

journal_title：Journal of the American College of Cardiology

authors： Cornel JH,Bax JJ,Elhendy A,Maat AP,Kimman GJ,Geleijnse ML,Rambaldi R,Boersma E,Fioretti PM

更新日期：1998-04-01 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：OBJECTIVES:To determine whether early administration of captopril lessens infarct zone regional wall motion abnormalities when infarct artery blood flow is abnormal. BACKGROUND:The interaction between angiotensin-converting enzyme (ACE) inhibitor therapy, ventricular function and infarct artery blood flow has not been...

journal_title：Journal of the American College of Cardiology

authors： French JK,Amos DJ,Williams BF,Cross DB,Elliott JM,Hart HH,Williams MG,Norris RM,Ashton NG,Whitlock RM,McLaughlin SC,White HD

更新日期：1999-01-01 00:00:00

abstract：:Thirty-eight patients who had inducible sustained ventricular tachycardia during baseline programmed electrical stimulation underwent electrophysiologic testing after both intravenous and oral administration of procainamide. Each had presented clinically with documented sustained ventricular tachycardia or out of hosp...

journal_title：Journal of the American College of Cardiology

authors： Interian A Jr,Zaman L,Velez-Robinson E,Kozlovskis P,Castellanos A,Myerburg RJ

更新日期：1991-06-01 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：:This study presents follow-up data on 95 patients with transposition of the great arteries who underwent a Mustard intraatrial baffle operation. The patients were followed up serially by means of scalar electrocardiograms and 24 hour Holter monitoring studies. The latter study was effective in documenting abnormal rhy...

journal_title：Journal of the American College of Cardiology

authors： Hayes CJ,Gersony WM

更新日期：1986-01-01 00:00:00