Long-term outcome of unsuccessful percutaneous transluminal coronary angioplasty.

abstract：:Few studies have examined metabolic consequences of coronary occlusion and reperfusion using phosphorus31 nuclear magnetic resonance (31P-NMR) in an intact animal model. Accordingly, we developed a model to study serial changes in myocardial metabolism in the intact open-chest rabbit. Ten animals underwent 20 +/- 2 mi...

journal_title：American heart journal

authors： Kavanaugh KM,Aisen AM,Fechner KP,Chenevert TL,Dunham WR,Buda AJ

更新日期：1989-01-01 00:00:00

abstract：BACKGROUND:The favorable effects of lowering low-density lipoprotein (LDL)-cholesterol on reducing clinical events in patients with coronary disease have been well established. The mechanisms responsible for this benefit, however, have not been fully understood. This study examined the impact of lipid-lowering therapy ...

journal_title：American heart journal

authors： Cohen JD,Drury JH,Ostdiek J,Finn J,Babu BR,Flaker G,Belew K,Donohue T,Labovitz A

更新日期：2000-04-01 00:00:00

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:The optimal antiplatelet regimen in elective patients undergoing complex percutaneous coronary interventions (PCIs) is uncertain. We aimed to assess the impact of glycoprotein IIb/IIIa (GpIIb/IIIa) inhibition with eptifibatide in clinically stable subjects with diffuse coronary lesions. METHODS:Patients wit...

journal_title：American heart journal

authors： Biondi-Zoccai G,Valgimigli M,Margheri M,Marzocchi A,Lettieri C,Stabile A,Petronio AS,Binetti G,Bolognese L,Bellone P,Sardella G,Contarini M,Sheiban I,Marra S,Piscione F,Romeo F,Colombo A,Sangiorgi G

更新日期：2012-05-01 00:00:00

abstract：:Since many patients with chest pain cannot exercise adequately, an alternative stress would be useful to evaluate coronary reserve. We studied the physiologic responses to epinephrine to assess its potential. We report on 39 patients with chest pain. Doses from 0.03 to 0.30 micrograms/kg/min were administered intraven...

journal_title：American heart journal

authors： Schechter E,Wilson MF,Kong YS

更新日期：1983-04-01 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：: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：BACKGROUND:AutoCapture (AC) is a programmable feature that enables the pacemaker to both track the capture threshold and automatically adjust the output on a beat-by-beat basis. Although AC safely and significantly reduces the current drainage, some authors have argued that the longevity benefit of such a system is ove...

journal_title：American heart journal

authors： Ribeiro AL,Rincón LG,Oliveira BG,Vinha CR,Melatto D,Torres AA,Barros VC,Levine PA

更新日期：2004-01-01 00:00:00

abstract：BACKGROUND:Rheumatic disease and heart disease share common underpinnings involving inflammation. The high levels of inflammation that characterize rheumatic diseases provide a "natural experiment" to help elucidate the mechanisms by which inflammation accelerates heart disease. Rheumatoid arthritis (RA) is the most co...

journal_title：American heart journal

authors： Crowson CS,Liao KP,Davis JM 3rd,Solomon DH,Matteson EL,Knutson KL,Hlatky MA,Gabriel SE

更新日期：2013-10-01 00:00:00

abstract：:Out of 160 prospectively followed patients with aortic regurgitation, the clinical courses of 53 patients with pure, severe, and chronic aortic regurgitation and without coronary artery disease who were selected for surgery on the basis of predefined criteria is discussed. Surgical criteria were either unequivocal sym...

journal_title：American heart journal

authors： Tornos MP,Permanyer-Miralda G,Evangelista A,Worner F,Candell J,Garcia-del-Castillo H,Soler-Soler J

更新日期：1990-09-01 00:00:00

abstract：UNLABELLED:Antiarrhythmic agents enhance maintenance of sinus rhythm (SR) after direct current cardioversion (DCC) for atrial fibrillation but there are few comparative trials. BACKGROUND:The aims of the study were (1) to establish whether patients successfully cardioverted to SR are more likely to stay in SR over 6 m...

journal_title：American heart journal

authors： Vijayalakshmi K,Whittaker VJ,Sutton A,Campbell P,Wright RA,Hall JA,Harcombe AA,Linker NJ,Stewart MJ,Davies A,de Belder MA

更新日期：2006-04-01 00:00:00

abstract：BACKGROUND:Prior studies regarding the effect of racial status on post-myocardial infarction (MI) in subjects with diabetes have yielded conflicting results. We evaluated the effect of diabetes status on racial differences in post-MI mortality and morbidity for a 7-year period, from 1990 through 1997. METHODS:All pati...

journal_title：American heart journal

authors： Kamalesh M,Subramanian U,Ariana A,Sawada S,Peterson E

更新日期：2005-11-01 00:00:00

abstract：BACKGROUND:The same electrocardiographic (ECG) criteria that have been used for detection of left ventricular hypertrophy (LVH) have recently been recognized as predictors of adverse clinical outcomes, but this predictive ability is inadequately explored and understood. METHODS:A total of 14,984 participants from the ...

journal_title：American heart journal

authors： Estes EH,Zhang ZM,Li Y,Tereschenko LG,Soliman EZ

更新日期：2015-07-01 00:00:00

abstract：BACKGROUND:While pharmacologic stress single photon emission computed tomography myocardial perfusion imaging (SPECT-MPI) is used for noninvasive evaluation of patients who are unable to perform treadmill exercise, its impact on net reclassification improvement (NRI) of prognosis is unknown. METHODS:We evaluated the p...

journal_title：American heart journal

authors： Lee DS,Husain M,Wang X,Austin PC,Iwanochko RM

更新日期：2016-04-01 00:00:00

abstract：:The presence and severity of functional mitral regurgitation were quantified by Doppler echocardiography in 17 patients with dilated cardiomyopathy and no evidence of primary valvular disease. Mitral regurgitant fraction was greater than 20% in 11 of the 17 patients, and exceeded 40% in four patients. Total stroke vol...

journal_title：American heart journal

authors： Keren G,Katz S,Strom J,Sonnenblick EH,LeJemtel TH

更新日期：1988-09-01 00:00:00

abstract：BACKGROUND:Advanced age is a well-established prognostic risk factor after acute myocardial infarction (AMI), yet approximately 10% of MIs occur in patients <45 years. We examined characteristics, cardiovascular outcomes, and the influence of risk factors on outcomes in young survivors of AMI. METHODS:Fourteen thousan...

journal_title：American heart journal

authors： Anderson RE,Pfeffer MA,Thune JJ,McMurray JJ,Califf RM,Velazquez E,White HD,Rouleau JL,Skali H,Maggioni A,Solomon SD

更新日期：2008-04-01 00:00:00

abstract：:Intracoronary delivery of argon laser energy was studied in eight anesthetized mongrel dogs. A No. 4.5 French single lumen catheter, with steerable guidewire and an optical fiber, was introduced through a Judkins-type femoral-coronary guiding catheter into three left anterior descending and eight left circumflex coron...

journal_title：American heart journal

authors： Anderson HV,Zaatari GS,Roubin GS,Leimgruber PP,Gruentzig AR

更新日期：1987-01-01 00:00:00

abstract：:Short-term follow-up after percutaneous aortic balloon valvuloplasty shows a high incidence of restenosis. Yet a high percentage of patients with restenosis continue to show symptomatic improvement. Those with decreased left ventricular function originally tend to have a recurrence of symptoms. In this study Doppler-d...

journal_title：American heart journal

authors： Barbosa MM,Nishimura RA,Holmes DR Jr,Reeder GS,Ilstrup DM,Tajik AJ

更新日期：1992-05-01 00:00:00

abstract：:Epinephrine increases coronary blood flow but may not improve the balance between myocardial oxygen supply and demand during cardiopulmonary resuscitation (CPR). The objective of this study was to determine whether this balance can be improved by administering a relatively pure alpha-adrenergic vasoconstrictor, alone ...

journal_title：American heart journal

authors： Ditchey RV,Slinker BK

更新日期：1994-02-01 00:00:00

abstract：:Heart failure is associated with a hypercoagulable state. A single-center, randomized, double-blind, placebo-controlled trial was performed to test the hypothesis that warfarin will modify a hypercoagulable state in heart failure. This study included 76 patients with heart failure. At baseline, patients had evidence f...

journal_title：American heart journal

authors： Jafri SM,Mammen EF,Masura J,Goldstein S

更新日期：1997-07-01 00:00:00

abstract：BACKGROUND:Current acetylsalicylic acid (ASA) dosing algorithms for the prevention of secondary thrombotic events in acute coronary syndrome (ACS) patients are inconsistent and lack sufficient data support. METHODS:We performed a systematic review of the literature for studies that assessed clinical outcomes in patien...

journal_title：American heart journal

authors： Berger JS,Sallum RH,Katona B,Maya J,Ranganathan G,Xu Y,Mwamburi M

更新日期：2012-08-01 00:00:00

abstract：:The efficacy of mexiletine used alone, and in combination with a class Ia antiarrhythmic drug, was assessed in 159 previously drug-refractory patients with ventricular tachycardia (VT) during serial electrophysiologic studies and during long-term (5-year) clinical follow-up. Electrically-inducible ventricular tachycar...

journal_title：American heart journal

authors： Whitford EG,McGovern B,Schoenfeld MH,Garan H,Newell JB,McElroy M,Ruskin JN

更新日期：1988-02-01 00:00:00

abstract：:We evaluated electrocardiographically the acute effect of captopril in the initial treatment of malignant or severe hypertension and the findings were compared with the data obtained with diazoxide. The captopril group included seven patients treated with captopril or with a combination of diuretics. The diazoxide gro...

journal_title：American heart journal

authors： Abe I,Kawasaki T,Kawazoe N,Omae T

更新日期：1983-09-01 00:00:00

abstract：:The electrophysiologic characteristics of the denervated human heart were assessed in 14 cardiac transplant recipients. Conduction intervals and refractory periods were measured at pacing cycle lengths of 500 msec and 400 msec. The faster pacing rate caused lengthening of the AH interval (83 +/- 23 msec to 116 +/- 41 ...

journal_title：American heart journal

authors： Bexton RS,Nathan AW,Hellestrand KJ,Cory-Pearce R,Spurrell RA,English TA,Camm AJ

更新日期：1984-01-01 00:00:00

abstract：BACKGROUND:Despite the known benefits of cardiac rehabilitation in patients with coronary artery disease, referral rates to rehabilitation programs remain low. We determined the incidence and determinants of cardiac rehabilitation referral rates for patients undergoing percutaneous coronary intervention (PCI). METHODS...

journal_title：American heart journal

authors： Aragam KG,Moscucci M,Smith DE,Riba AL,Zainea M,Chambers JL,Share D,Gurm HS

更新日期：2011-03-01 00:00:00

abstract：:Pulsed Doppler echocardiographic studies of both right and left ventricular diastolic inflow patterns were performed in 10 full-term newborn infants and serially during the first month of life in 21 premature (28 to 35 weeks' gestation) infants with no clinical cardiorespiratory disease. Results of studies performed d...

journal_title：American heart journal

authors： Johnson GL,Moffett CB,Noonan JA

更新日期：1988-12-01 00:00:00

abstract：BACKGROUND:31-Phosphorus-magnetic resonance spectroscopy may provide pathophysiological insights into the high-energy phosphate metabolism of the myocardium as measured by phosphocreatine to adenosine triphosphate (PCr/ATP) ratio. Aim of the present study was to determine in vivo the relation between cardiac PCr/ATP ra...

journal_title：American heart journal

authors： Fragasso G,De Cobelli F,Spoladore R,Esposito A,Salerno A,Calori G,Montanaro C,Maranta F,Lattuada G,Margonato A,Del Maschio A,Perseghin G

更新日期：2011-07-01 00:00:00

abstract：:The objective of this investigation was to assess the acute and long-term outcome after coronary angioplasty in patients undergoing chronic hemodialysis. Previous studies have suggested a high incidence of restenosis after coronary angioplasty performed in patients with renal failure. Medical discharge abstracts for 8...

journal_title：American heart journal

authors： Ahmed WH,Shubrooks SJ,Gibson CM,Baim DS,Bittl JA

更新日期：1994-08-01 00:00:00

abstract：:The electrocardiographic QT interval, with a wide variety of practical and theoretic applications in medicine, pharmacology, and cardiology, is critically dependent on heart rate as expressed by cycle length (RR). To account for this and permit intraindividual and interindividual comparisons of changing QT intervals, ...

journal_title：American heart journal

authors： Spodick DH,Rifkin RD,Rajasingh MC

更新日期：1990-07-01 00:00:00

abstract：:The appearance of perivalvular cavities (PCs) in patients with infectious endocarditis (IE) was studied by transesophageal echocardiography (TEE) color Doppler examinations to determine whether the color Doppler TEE presentation was in keeping with the current concept of PCs representing abscesses. Two heart centers p...

journal_title：American heart journal

authors： Tingleff J,Egeblad H,Gøtzsche CO,Baandrup U,Kristensen BO,Pilegaard H,Pettersson G

更新日期：1995-07-01 00:00:00