Natural history and classification of occlusive thromboaortopathy (Takayasu's disease).

abstract：BACKGROUND:This study reports on the trends in the volume and outcomes of coronary revascularization procedures performed on Medicare beneficiaries between 2008 and 2012. METHODS AND RESULTS:This retrospective study identifies all Medicare beneficiaries undergoing a coronary revascularization procedure: coronary arter...

journal_title：Circulation

authors： Culler SD,Kugelmass AD,Brown PP,Reynolds MR,Simon AW

更新日期：2015-01-27 00:00:00

abstract：BACKGROUND:The pathogenesis of impaired endothelium-dependent coronary vasodilation in angina pectoris and normal coronary arteriograms (microvascular angina pectoris) is not known. We examined whether supplementation with L-arginine, a precursor of endothelium-derived nitric oxide, improves endothelium-dependent coron...

journal_title：Circulation

authors： Egashira K,Hirooka Y,Kuga T,Mohri M,Takeshita A

更新日期：1996-07-15 00:00:00

abstract：BACKGROUND:Although acute pericarditis is a common complication of beta-thalassemia major, the prevalence and consequences of myocarditis in this disease have not been investigated. METHODS AND RESULTS:A prospective 5-year follow-up study was carried out in all patients with beta-thalassemia major in whom the diagnosi...

journal_title：Circulation

authors： Kremastinos DT,Tiniakos G,Theodorakis GN,Katritsis DG,Toutouzas PK

更新日期：1995-01-01 00:00:00

abstract：BACKGROUND:Patients with bicuspid aortic valve (AV) stenosis were excluded from the pivotal evaluations of transcatheter AV replacement (TAVR) devices. We sought to evaluate the outcomes of TAVR in patients with bicuspid AV stenosis in comparison with those with tricuspid AV stenosis. METHODS:We used data from the Soc...

journal_title：Circulation

authors： Halim SA,Edwards FH,Dai D,Li Z,Mack MJ,Holmes DR,Tuzcu EM,Thourani VH,Harrison JK,Brennan JM

更新日期：2020-03-31 00:00:00

abstract：:It has been suggested that the rate of left ventricular (LV) relaxation is related to the inotropic state, end-systolic fiber length and peak LV pressure, but little information is available regarding the rate of LV relaxation in patients with coronary artery disease (CAD) and LV dysfunction. To assess the rate of LV ...

journal_title：Circulation

authors： Papapietro SE,Coghlan HC,Zissermann D,Russell RO Jr,Rackley CE,Rogers WJ

更新日期：1979-05-01 00:00:00

abstract：BACKGROUND:The use of cells derived from human induced pluripotent stem cells as cellular therapy for myocardial injury has yet to be examined in a large-animal model. METHODS AND RESULTS:Immunosuppressed Yorkshire pigs were assigned to 1 of 3 groups: A myocardial infarction group (MI group; distal left anterior desce...

journal_title：Circulation

authors： Xiong Q,Ye L,Zhang P,Lepley M,Tian J,Li J,Zhang L,Swingen C,Vaughan JT,Kaufman DS,Zhang J

更新日期：2013-03-05 00:00:00

abstract：BACKGROUND:Present therapies for acute coronary syndromes aim toward limiting platelet-platelet adhesion and aggregation processes. However, platelet-leukocyte interactions may contribute importantly to disease progression in the arterial wall. Recent studies suggest that prevention of platelet-leukocyte binding via P-...

journal_title：Circulation

authors： Sarma J,Laan CA,Alam S,Jha A,Fox KA,Dransfield I

更新日期：2002-05-07 00:00:00

abstract：BACKGROUND:Dilated cardiomyopathy is an important cause of morbidity and mortality among patients with congestive heart failure. Hemodynamic and prognostic characterization are critical in guiding selection of medical and surgical therapies. METHODS AND RESULTS:A cohort of 102 patients with the clinical diagnosis of d...

journal_title：Circulation

authors： Rihal CS,Nishimura RA,Hatle LK,Bailey KR,Tajik AJ

更新日期：1994-12-01 00:00:00

abstract：BACKGROUND:Early stages of coronary atherosclerosis are characterized by a mainly functional impairment of coronary vasodilator capacity under the impact of such risk factors as hypercholesterolemia. The goal of this study was to determine whether 6-month cholesterol-lowering therapy improves coronary flow reserve in p...

journal_title：Circulation

authors： Baller D,Notohamiprodjo G,Gleichmann U,Holzinger J,Weise R,Lehmann J

更新日期：1999-06-08 00:00:00

abstract：BACKGROUND:The patency of AV expanded polytetrafluoroethylene (ePTFE) grafts for hemodialysis is impaired by intimal hyperplasia (IH) at the venous outflow tract. The absence of a functional endothelial monolayer on the prosthetic grafts is an important stimulus for IH. In the present study, we evaluated the feasibilit...

journal_title：Circulation

authors： Rotmans JI,Heyligers JM,Verhagen HJ,Velema E,Nagtegaal MM,de Kleijn DP,de Groot FG,Stroes ES,Pasterkamp G

更新日期：2005-07-05 00:00:00

abstract：BACKGROUND:Abnormal coronary endothelial reactivity has been demonstrated in diabetes and is associated with an increased rate of cardiovascular events. Our objectives were to investigate the presence of functional coronary circulatory abnormalities over the full spectrum of insulin resistance and to determine whether ...

journal_title：Circulation

authors： Prior JO,Quiñones MJ,Hernandez-Pampaloni M,Facta AD,Schindler TH,Sayre JW,Hsueh WA,Schelbert HR

更新日期：2005-05-10 00:00:00

abstract：BACKGROUND:The arrhythmia burden in tetralogy of Fallot, types of arrhythmias encountered, and risk profile may change as the population ages. METHODS AND RESULTS:The Alliance for Adult Research in Congenital Cardiology (AARCC) conducted a multicenter cross-sectional study to quantify the arrhythmia burden in tetralog...

journal_title：Circulation

authors： Khairy P,Aboulhosn J,Gurvitz MZ,Opotowsky AR,Mongeon FP,Kay J,Valente AM,Earing MG,Lui G,Gersony DR,Cook S,Ting JG,Nickolaus MJ,Webb G,Landzberg MJ,Broberg CS,Alliance for Adult Research in Congenital Cardiology (AARCC).

更新日期：2010-08-31 00:00:00

abstract：BACKGROUND:Myocardial necrosis can occur during percutaneous coronary intervention (PCI) despite optimal adjunctive pharmacology and careful technique. We investigated the mechanisms of procedural infarction using angiographic analysis, intravascular ultrasound, and delayed-enhancement magnetic resonance imaging. METH...

journal_title：Circulation

authors： Porto I,Selvanayagam JB,Van Gaal WJ,Prati F,Cheng A,Channon K,Neubauer S,Banning AP

更新日期：2006-08-15 00:00:00

abstract：:We reviewed 35 patients undergoing resection of a chronic postinfarction left ventricular aneurysm. There was 5.7% operative mortality. Of the long-term survivors, 80% are functional class I or II. Ten patients had postoperative left ventriculograms studied by means of a computerized analysis of endocardial motion usi...

journal_title：Circulation

authors： Shaw RC,Connors JP,Hieb BR,Ludbrook PA,Krone R,Kleiger RE,Ferguson TB,Weldon CS

更新日期：1977-09-01 00:00:00

abstract：BACKGROUND:We investigated the effects of candesartan (an angiotensin II antagonist) alone, enalapril alone, and their combination on exercise tolerance, ventricular function, quality of life (QOL), neurohormone levels, and tolerability in congestive heart failure (CHF). METHODS AND RESULTS:Seven hundred sixty-eight p...

journal_title：Circulation

authors： McKelvie RS,Yusuf S,Pericak D,Avezum A,Burns RJ,Probstfield J,Tsuyuki RT,White M,Rouleau J,Latini R,Maggioni A,Young J,Pogue J

更新日期：1999-09-07 00:00:00

abstract：BACKGROUND:Coronary artery disease is the major cause of late cardiac allograft failure. However, few data exist regarding the natural history of changes in intimal and external elastic membrane (EEM) areas after heart transplantation. METHODS AND RESULTS:In 38 transplant recipients, serial intravascular ultrasound ex...

journal_title：Circulation

authors： Tsutsui H,Ziada KM,Schoenhagen P,Iyisoy A,Magyar WA,Crowe TD,Klingensmith JD,Vince DG,Rincon G,Hobbs RE,Yamagishi M,Nissen SE,Tuzcu EM

更新日期：2001-08-07 00:00:00

abstract：BACKGROUND:The relative anti-aggregatory effects of currently prescribed platelet glycoprotein IIb/IIIa receptor antagonists during and after percutaneous coronary intervention for acute coronary syndromes have not been established. METHODS AND RESULTS:We randomized 70 acute coronary syndrome patients undergoing percu...

journal_title：Circulation

authors： Batchelor WB,Tolleson TR,Huang Y,Larsen RL,Mantell RM,Dillard P,Davidian M,Zhang D,Cantor WJ,Sketch MH Jr,Ohman EM,Zidar JP,Gretler D,DiBattiste PM,Tcheng JE,Califf RM,Harrington RA

更新日期：2002-09-17 00:00:00

abstract：:The current dispute over the effects of "low" vs "high" doses of aspirin should take into consideration the pharmacokinetics of this drug. In fact, different pharmaceutical formulations of aspirin may deliver little or no aspirin to the systemic blood. This was the case, for instance, in healthy volunteers taking 320 ...

journal_title：Circulation

authors： de Gaetano G,Cerletti C,Dejana E,Latini R

更新日期：1985-12-01 00:00:00

abstract：BACKGROUND:Preclinical systolic or diastolic dysfunction is associated with increased morbidity and mortality. We postulated that plasma brain natriuretic peptide (BNP) might serve as a biomarker for preclinical ventricular dysfunction (PCVD) but that the discriminatory values for BNP may vary with age and sex. METHOD...

journal_title：Circulation

authors： Redfield MM,Rodeheffer RJ,Jacobsen SJ,Mahoney DW,Bailey KR,Burnett JC Jr

更新日期：2004-06-29 00:00:00

abstract：:Twelve patients with medically refractory ventricular tachycardia secondary to ischemic heart disease underwent surgery for cure of their arrhythmia. Preoperatively, the tachycardia could be reproducibly initiated and terminated in each patient by programmed stimulation. In all instances, intraoperative mapping locali...

journal_title：Circulation

authors： Josephson ME,Harken AH,Horowitz LN

更新日期：1979-12-01 00:00:00

abstract：BACKGROUND:From animal studies it emerged that nitric oxide is important for the modulation of CO2-mediated cerebral blood flow (CBF chemoregulation) but not for the pressor-dependent mechanism (mechanoregulation). This hypothesis was tested in 18 healthy subjects. METHODS AND RESULTS:Peak velocity (PV), diastolic vel...

journal_title：Circulation

authors： Lavi S,Egbarya R,Lavi R,Jacob G

更新日期：2003-04-15 00:00:00

abstract：:A study correlating the electrocardiographic findings and the histology of the atrioventricular (AV) conduction system was carried out in 14 cases with chronic complete AV block and in 13 cases without chronic complete AV block. Patients with chronic complete AV block were divided into two groups, based on the width o...

journal_title：Circulation

authors： Ohkawa S,Hackel DB,Ideker RE

更新日期：1981-04-01 00:00:00

abstract：BACKGROUND:Left ventricular outflow tract obstruction (LVOTO) occurs in 4% to 5% of patients after prosthetic ring mitral valve repair. Major anatomic factors incriminated in the genesis of LVOTO include degenerative mitral valve insufficiency with excess leaflet tissue, nondilated left ventricular cavity, and narrow m...

journal_title：Circulation

authors： Jebara VA,Mihaileanu S,Acar C,Brizard C,Grare P,Latremouille C,Chauvaud S,Fabiani JN,Deloche A,Carpentier A

更新日期：1993-11-01 00:00:00

abstract：BACKGROUND:The atrioventricular node (AVN) is the only normal electrical link between the upper and lower chambers of the heart. The AVN modulates transmission of impulses, thus coordinating the contraction of the atria and ventricles. METHODS AND RESULTS:Structural and functional complexity, combined with the absence...

journal_title：Circulation

authors： Efimov IR,Mazgalev TN

更新日期：1998-07-07 00:00:00

abstract：BACKGROUND:Cardiovascular disease is the major cause of death in older women. Information on the relation of menopause and hormone replacement therapy with carotid atherosclerosis is limited. METHODS AND RESULTS:We examined cross-sectionally the association of menopausal status, years since last menstruation, and horm...

journal_title：Circulation

authors： Nabulsi AA,Folsom AR,Szklo M,White A,Higgins M,Heiss G

更新日期：1996-10-15 00:00:00

abstract：:Prospective data was recorded on 217 percutaneous transluminal angioplasty (PTA) procedures performed in the superficial femoral and popliteal arteries over an 8-year period. After the initial procedure, patients were followed with serial noninvasive studies and, in 71 patients, repeat angiography. The mean follow-up ...

journal_title：Circulation

authors： Capek P,McLean GK,Berkowitz HD

更新日期：1991-02-01 00:00:00

abstract：BACKGROUND:In large mammals and humans, the contribution of IKs to ventricular repolarization is still incompletely understood. METHODS AND RESULTS:In vivo and cellular electrophysiological experiments were conducted to study IKs in canine ventricular repolarization. In conscious dogs, administration of the selective ...

journal_title：Circulation

authors： Volders PG,Stengl M,van Opstal JM,Gerlach U,Spätjens RL,Beekman JD,Sipido KR,Vos MA

更新日期：2003-06-03 00:00:00

abstract：BACKGROUND:Biventricular direct cardiac compression (DCC) has the potential to support the failing heart without the complications associated with a blood/device interface encountered with the use of current ventricular assist devices. A clinically designed DCC device that provides compression pressure around the base ...

journal_title：Circulation

authors： Artrip JH,Yi GH,Levin HR,Burkhoff D,Wang J

更新日期：1999-11-09 00:00:00

abstract：BACKGROUND:Clinical studies have demonstrated the efficacy of intravenous administration of agents that block platelet glycoprotein IIb/IIIa receptors in the setting of percutaneous coronary revascularization. Although the optimal duration of treatment has not been determined, more prolonged receptor blockade has been ...

journal_title：Circulation

authors： Simpfendorfer C,Kottke-Marchant K,Lowrie M,Anders RJ,Burns DM,Miller DP,Cove CS,DeFranco AC,Ellis SG,Moliterno DJ,Raymond RE,Sutton JM,Topol EJ

更新日期：1997-07-01 00:00:00

abstract：BACKGROUND:Although angina is often caused by atherosclerotic obstruction of the coronary arteries, patients with similar amounts of myocardial ischemia may vary widely in their symptoms. We sought to compare clinical and psychosocial characteristics associated with more frequent angina after adjusting for the amount o...

journal_title：Circulation

authors： Arnold SV,Spertus JA,Ciechanowski PS,Soine LA,Jordan-Keith K,Caldwell JH,Sullivan MD

更新日期：2009-07-14 00:00:00