Quantitative ultrasonic tissue characterization with real-time integrated backscatter imaging in normal human subjects and in patients with dilated cardiomyopathy.

abstract：BACKGROUND:Two types of ischemia, pacing-induced and coronary occlusion-induced, have different effects on left ventricular diastolic properties. During pacing-induced ischemia, the diastolic pressure-volume relation is said to shift upward, whereas during coronary occlusion, it is said to shift rightward or downward. ...

journal_title：Circulation

authors： Takano H,Glantz SA

更新日期：1995-05-01 00:00:00

abstract：BACKGROUND:In contrast to healthy volunteers, regional differences of cardiac autonomic innervation have been described through the use of C11-hydroxyephedrine positron emission tomography (HED-PET) in the left ventricles of patients with dilated cardiomyopathy. The goal of the present study was to correlate HED-PET im...

journal_title：Circulation

authors： Ungerer M,Hartmann F,Karoglan M,Chlistalla A,Ziegler S,Richardt G,Overbeck M,Meisner H,Schömig A,Schwaiger M

更新日期：1998-01-20 00:00:00

abstract：:Predictability of prognosis was analyzed in 630 patients who were alive 30 days after valve replacement (1965-1986) for aortic stenosis. Follow-up totaled 4,072 patient-years. During the operative periods of 1965-1971 (n = 62), 1972-1976 (n = 164), 1977-1981 (n = 158), and 1982-1986 (n = 246), decreases in cardiothora...

journal_title：Circulation

authors： Lund O

更新日期：1990-07-01 00:00:00

abstract：BACKGROUND:Obesity is a risk factor for impaired cardiac performance, particularly in women. Animal studies suggest that alterations in myocardial fatty acid metabolism and efficiency in obesity can cause decreased cardiac performance. In the present study, we tested the hypothesis that myocardial fatty acid metabolism...

journal_title：Circulation

authors： Peterson LR,Herrero P,Schechtman KB,Racette SB,Waggoner AD,Kisrieva-Ware Z,Dence C,Klein S,Marsala J,Meyer T,Gropler RJ

更新日期：2004-05-11 00:00:00

abstract：BACKGROUND:The aims of the present study were to define the prevalence of untreated atrial fibrillation (AF) in a systematic screening program using intermittent ECG recordings among 75- to 76-year-old individuals and to study the feasibility of initiating protective oral anticoagulant (OAC) treatment. METHODS AND RES...

journal_title：Circulation

authors： Svennberg E,Engdahl J,Al-Khalili F,Friberg L,Frykman V,Rosenqvist M

更新日期：2015-06-23 00:00:00

abstract：BACKGROUND:Among adults, skipping meals is associated with excess body weight, hypertension, insulin resistance, and elevated fasting lipid concentrations. However, it remains unknown whether specific eating habits regardless of dietary composition influence coronary heart disease (CHD) risk. The objective of this stud...

journal_title：Circulation

authors： Cahill LE,Chiuve SE,Mekary RA,Jensen MK,Flint AJ,Hu FB,Rimm EB

更新日期：2013-07-23 00:00:00

abstract：:Since the discovery that neuregulin-1 (NRG-1)/ErbB signaling is indispensable in cardiac development, evidence has shown that this system also plays a crucial role in the adult heart. In patients, an inhibitory ErbB2 antibody, trastuzumab, used in the treatment of mammary carcinomas, increases the risk for the develop...

journal_title：Circulation

authors： Lemmens K,Doggen K,De Keulenaer GW

更新日期：2007-08-21 00:00:00

abstract：:Numerous criteria for the diagnosis of inferior wall myocardial infarction by electrocardiogram (ECG) and vectorcardiogram (VCG) have been published, but they have not been subjected to a systematic, independent evaluation. Accordingly, we studied 146 patients undergoing cardiac catheterization; 63 were normal and 83 ...

journal_title：Circulation

authors： Hurd HP 2nd,Starling MR,Crawford MH,Dlabal PW,O'Rourke RA

更新日期：1981-05-01 00:00:00

abstract：BACKGROUND:Trends in cardiovascular mortality across Europe demonstrate significant geographical variation, and an understanding of these trends has a central role in global public health. METHODS AND RESULTS:Ischemic heart disease and cerebrovascular disease age-standardized death rates (as per International Classifi...

journal_title：Circulation

authors： Hartley A,Marshall DC,Salciccioli JD,Sikkel MB,Maruthappu M,Shalhoub J

更新日期：2016-05-17 00:00:00

abstract：:We recorded direct-current extracellular electrograms simultaneously from 60 left ventricular epicardial sites in 38 alpha-chloralose-anesthetized dogs during repeated, 5 min coronary arterial occlusions. In each dog recordings made during control occlusions were compared with those made in occlusions after, or during...

journal_title：Circulation

authors： Janse MJ,Schwartz PJ,Wilms-Schopman F,Peters RJ,Durrer D

更新日期：1985-09-01 00:00:00

abstract：BACKGROUND:Molecular targeted chemotherapies have been shown to significantly improve the outcomes of patients who have cancer, but they often cause cardiovascular side effects that limit their use and impair patients' quality of life. Cardiac dysfunction induced by these therapies, especially trastuzumab, shows a dist...

journal_title：Circulation

authors： Kitani T,Ong SG,Lam CK,Rhee JW,Zhang JZ,Oikonomopoulos A,Ma N,Tian L,Lee J,Telli ML,Witteles RM,Sharma A,Sayed N,Wu JC

更新日期：2019-05-21 00:00:00

abstract：BACKGROUND:31P metabolite measurements in the human heart by magnetic resonance spectroscopy (MRS) have been reported previously. By use of a method in which metabolite content was quantified with reference to a standard located outside the chest, it has become possible to measure the content of phosphocreatine (PCr) a...

journal_title：Circulation

authors： Yabe T,Mitsunami K,Inubushi T,Kinoshita M

更新日期：1995-07-01 00:00:00

abstract：BACKGROUND:The transient outward potassium current (I(to)) encoded by the Kv4 family of potassium channels is important in the repolarization of cardiac myocytes. KChIPs are a recently identified group of Ca2+-binding accessory subunits that modulate Kv4-encoded currents. KChIP2 is the only family member expressed in t...

journal_title：Circulation

authors： Deschênes I,DiSilvestre D,Juang GJ,Wu RC,An WF,Tomaselli GF

更新日期：2002-07-23 00:00:00

abstract：BACKGROUND:There is no published randomized study comparing amiodarone therapy and radiofrequency catheter ablation (RFA) after only 1 episode of symptomatic atrial flutter (AFL). The aim of the Loire-Ardèche-Drôme-Isère-Puy-de-Dôme (LADIP) Trial of Atrial Flutter was 2-fold: (1) to prospectively compare first-line RFA...

journal_title：Circulation

authors： Da Costa A,Thévenin J,Roche F,Romeyer-Bouchard C,Abdellaoui L,Messier M,Denis L,Faure E,Gonthier R,Kruszynski G,Pages JM,Bonijoly S,Lamaison D,Defaye P,Barthélemy JC,Gouttard T,Isaaz K,Loire-Ardèche-Drôme-Isère-Puy-de-D

更新日期：2006-10-17 00:00:00

abstract：:A case of progressive pulmonary hypertension in a child with a small ventricular septal defect is presented. Natural history studies have indicated that children with small ventricular septal defects can be followed conservatively. This case represents a contradiction to that rule and suggests that further study must ...

journal_title：Circulation

authors： Bisset GS 3rd,Hirschfeld SS

更新日期：1983-02-01 00:00:00

abstract：BACKGROUND:Thirteen of 14 epidemiological studies have shown an increased risk of approximately 20% for coronary heart disease (CHD) for never-smokers exposed to environmental tobacco smoke (ETS), but this association remains controversial. If true, ETS might account for an estimated 35,000 to 40,000 heart disease deat...

journal_title：Circulation

authors： Steenland K,Thun M,Lally C,Heath C Jr

更新日期：1996-08-15 00:00:00

abstract：BACKGROUND:Muscle sympathetic nerve activity (MSNA) is increased in patients with obstructive sleep apnea (OSA). We tested the hypothesis that tonic activation of excitatory chemoreceptor afferents contributes to the elevated sympathetic activity in OSA. METHODS AND RESULTS:Using a double-blind, randomized, vehicle-co...

journal_title：Circulation

authors： Narkiewicz K,van de Borne PJ,Montano N,Dyken ME,Phillips BG,Somers VK

更新日期：1998-03-17 00:00:00

abstract：BACKGROUND:Patients with transfusional iron overload may develop a life-limiting cardiomyopathy. The sensitivity of lipid-metabolizing enzymes to peroxidative injury, as well as the reported effects of arachidonic acid (AA) and metabolites on cardiac rhythm, led us to hypothesize that iron-overloaded cardiomyocytes dis...

journal_title：Circulation

authors： Mattera R,Stone GP,Bahhur N,Kuryshev YA

更新日期：2001-05-15 00:00:00

abstract：:Three patients developed late pulmonary vein obstruction (PVO) following Mustard's operation for transposition of the great arteries. In all three the absence of PVO had been documented by an earlier postoperative cardiac catheterization. At reoperation shrinkage and kinking of the dacron baffle was evident. After Mus...

journal_title：Circulation

authors： Driscoll DJ,Nihill MR,Vargo TA,Mullins CE,McNamara DG

更新日期：1977-03-01 00:00:00

abstract：BACKGROUND:Venous thromboembolism can be a presenting symptom of cancer, but the association between lower limb arterial thrombosis and cancer is unknown. We therefore examined cancer risk and prognosis of cancer in patients with lower limb arterial thrombosis. METHODS:Using nationwide population-based Danish medical ...

journal_title：Circulation

authors： Sundbøll J,Veres K,Horváth-Puhó E,Adelborg K,Sørensen HT

更新日期：2018-08-14 00:00:00

abstract：:It has been suggested that the beneficial effects of reperfusing ischemic myocardium might be in part reversed by the occurrence of "reperfusion injury." One possible mechanism could be the generation of oxygen free radicals. Superoxide dismutase enzymatically scavenges superoxide radicals by dismutation to hydrogen p...

journal_title：Circulation

authors： Ambrosio G,Weisfeldt ML,Jacobus WE,Flaherty JT

更新日期：1987-01-01 00:00:00

abstract：BACKGROUND:Echocardiographically determined left ventricular hypertrophy (LVH) has a well-demonstrated association with cardiovascular morbidity and mortality. However, whether or not there is a sex differential in the impact of LVH on mortality has never been systematically explored. METHODS AND RESULTS:This study en...

journal_title：Circulation

authors： Liao Y,Cooper RS,Mensah GA,McGee DL

更新日期：1995-08-15 00:00:00

abstract：:Transthyretin amyloid cardiomyopathy (ATTR-CM) results in a restrictive cardiomyopathy caused by extracellular deposition of transthyretin, normally involved in the transportation of the hormone thyroxine and retinol-binding protein, in the myocardium. Enthusiasm about ATTR-CM has grown as a result of 3 simultaneous a...

journal_title：Circulation

authors： Kittleson MM,Maurer MS,Ambardekar AV,Bullock-Palmer RP,Chang PP,Eisen HJ,Nair AP,Nativi-Nicolau J,Ruberg FL,American Heart Association Heart Failure and Transplantation Committee of the Council on Clinical Cardiology.

更新日期：2020-07-07 00:00:00

abstract：BACKGROUND:Numerous scales exist for the classification of major bleeding events. Limited data compare the most commonly used bleeding scales within a single at-risk cohort of patients with atrial fibrillation. Here, we analyze bleeding outcomes according to the ISTH (International Society on Thrombosis and Hemostasis)...

journal_title：Circulation

authors： Bergmark BA,Kamphuisen PW,Wiviott SD,Ruff CT,Antman EM,Nordio F,Kuder JF,Mercuri MF,Lanz HJ,Braunwald E,Giugliano RP

更新日期：2019-11-26 00:00:00

abstract：BACKGROUND:Hutchinson-Gilford progeria syndrome is an ultrarare segmental premature aging disease resulting in early death from heart attack or stroke. There is no approved treatment, but starting in 2007, several recent single-arm clinical trials administered inhibitors of protein farnesylation aimed at reducing toxic...

journal_title：Circulation

authors： Gordon LB,Massaro J,D'Agostino RB Sr,Campbell SE,Brazier J,Brown WT,Kleinman ME,Kieran MW,Progeria Clinical Trials Collaborative.

更新日期：2014-07-01 00:00:00

abstract：:In a group of 39 patients who received fibrinolytic therapy for acute myocardial infarction, serum crosslinked fibrin degradation products (XLDP) were quantitated by an enzyme-linked immunosorbent assay (ELISA) using an antibody reactive with a site near the gamma gamma crosslink of fibrin, and characterized by a gel ...

journal_title：Circulation

authors： Francis CW,Connaghan DG,Marder VJ

更新日期：1986-11-01 00:00:00

abstract：BACKGROUND:The overall performance of available mechanical intravascular ultrasound catheters for fetal transesophageal echocardiography during fetoscopic fetal cardiac interventions in sheep has been limited by radioelectronic interference, low system frame rates, and low acoustic outputs. Therefore, a more reliable d...

journal_title：Circulation

authors： Kohl T,Westphal M,Strümper D,Achenbach S,Halimeh S,Petry P,Aryee S,Buller T,Aleksiene R,Asfour B,Witteler R,Vogt J,Van Aken H,Scheld HH

更新日期：2001-10-09 00:00:00

abstract：BACKGROUND:In the Basel Antiarrhythmic Study of Infarct Survival trial, low-dose amiodarone improved 1-year survival in patients with asymptomatic complex ventricular arrhythmias persisting 2 weeks after myocardial infarction. To assess whether this beneficial effect persisted despite discontinuation of amiodarone afte...

journal_title：Circulation

authors： Pfisterer ME,Kiowski W,Brunner H,Burckhardt D,Burkart F

更新日期：1993-02-01 00:00:00

abstract：BACKGROUND:Long-term beta-adrenergic blockade does not appear to be associated with drug-induced training in patients with congestive heart failure (CHF); whether exercise training can increase peak aerobic capacity in patients with CHF who are treated with beta-adrenergic blockers is currently unknown. METHODS AND RE...

journal_title：Circulation

authors： Demopoulos L,Yeh M,Gentilucci M,Testa M,Bijou R,Katz SD,Mancini D,Jones M,LeJemtel TH

更新日期：1997-04-01 00:00:00

abstract：:Eight cases of ventricular parasystole are reported. In all these cases, regardless of whether parasystole seems intermittent or "continuous," the presence of second degree entrance block of the Mobitz type I was suggested. Parasystole alternated with concealed extrasystolic bigeminy showing occasional reentrant extra...

journal_title：Circulation

authors： Kinoshita S

更新日期：1978-10-01 00:00:00