Pulmonary perfusion abnormalities and ventilation-perfusion imbalance in children after total repair of tetralogy of Fallot.

abstract：BACKGROUND:Epidemiological studies have identified clinical and echocardiographic factors associated with increased stroke risk in atrial fibrillation (AF), but mechanisms linking these factors to stroke in AF are incompletely understood. We hypothesized that stroke risk factors may be associated with increased endothe...

journal_title：Circulation

authors： Conway DS,Pearce LA,Chin BS,Hart RG,Lip GY

更新日期：2002-10-08 00:00:00

abstract：:A 10 mg bolus of the angiotensin blocker saralasin was injected 113 times in 68 subjects with essential or renovascular hypertension. Ninety percent of injections caused a transient increase in blood pressure, which correlated with plasma renin activity (PRA) (r = -0.54); Mean increase at 2 minutes was 21/13.4 mm Hg (...

journal_title：Circulation

authors： Waks UA,Maxwell MH,Marks L,Zawada ET,Kaufman JJ

更新日期：1978-06-01 00:00:00

abstract：BACKGROUND:Research published in Circulation has shown that cardiac mortality is highest during December and January. We investigated whether some of this spike could be ascribed to the Christmas/New Year's holidays rather than to climatic factors. METHODS AND RESULTS:We fitted a locally weighted polynomial regression...

journal_title：Circulation

authors： Phillips DP,Jarvinen JR,Abramson IS,Phillips RR

更新日期：2004-12-21 00:00:00

abstract：:Frank lead vectorcardiograms (VCG) from four carefully selected patient subgroups (226 patients) were analyzed to develop optimal criteria for the diagnosis of anterior myocardial infarction. Specificity was evaluated using 100 healthy volunteers under age 30 and 80 patients with normal left ventriculogram and normal ...

journal_title：Circulation

authors： Starr JW,Wagner GS,Draffin RM,Reed JB,Walston A 2nd,Behar VS

更新日期：1976-02-01 00:00:00

abstract：BACKGROUND:Primum atrial septal defect (ASD) is a defect that is usually associated with few symptoms and can be electively repaired with good results. A review of our experience with primum ASD identified a subset of patients characterized by presentation with congestive heart failure (CHF) in the first months of life...

journal_title：Circulation

authors： Manning PB,Mayer JE Jr,Sanders SP,Coleman EA,Jonas RA,Keane JF,VanPraagh S,Castañeda AR

更新日期：1994-11-01 00:00:00

abstract：BACKGROUND:According to the American Heart Association, passive smoking is an important risk factor for coronary heart disease (CHD), but the mechanisms underlying this association are not fully understood. We studied the acute effect of passive smoking on the factors that influence the development of CHD: the antioxid...

journal_title：Circulation

authors： Valkonen M,Kuusi T

更新日期：1998-05-26 00:00:00

abstract：BACKGROUND:Risk factors for obstructive sleep apnea (OSA) and the development of subsequent cardiovascular (CV) complications differ by sex. We hypothesize that the relationship between OSA and high-sensitivity troponin T (hs-TnT), cardiac structure, and CV outcomes differs by sex. METHODS AND RESULTS:Seven hundred fi...

journal_title：Circulation

authors： Roca GQ,Redline S,Claggett B,Bello N,Ballantyne CM,Solomon SD,Shah AM

更新日期：2015-10-06 00:00:00

abstract：BACKGROUND:Integrins are involved in structural remodeling and tissue repair. This study aimed to elucidate the role of the beta-integrins in cardiac remodeling after myocardial infarction (MI). METHODS AND RESULTS:The MI model was created by ligation of the left anterior descending coronary artery in rats. We detecte...

journal_title：Circulation

authors： Sun M,Opavsky MA,Stewart DJ,Rabinovitch M,Dawood F,Wen WH,Liu PP

更新日期：2003-02-25 00:00:00

abstract：:In seven patients who underwent Fontan procedures but in whom no valves were inserted, dynamics of right heart flow were evaluated with the use of a catheter-tipped velocity transducer, pulsed Doppler echocardiography, and angiocardiography. Right atrial (RA) contraction caused a forward flow to the pulmonary artery (...

journal_title：Circulation

authors： Nakazawa M,Nakanishi T,Okuda H,Satomi G,Nakae S,Imai Y,Takao A

更新日期：1984-02-01 00:00:00

abstract：:In this paper we examine the relationship between risk factors and angiographically determined coronary artery disease for blacks and whites enrolled in the Coronary Artery Surgery Study (CASS). Analysis of data from the CASS registry indicated that blacks had a higher incidence of hypertension and current cigarette s...

journal_title：Circulation

authors： Maynard C,Fisher LD,Passamani ER,Pullum T

更新日期：1986-07-01 00:00:00

abstract：BACKGROUND:Adipocyte-derived hormones may represent a mechanism linking insulin resistance to cardiovascular disease. In the present study, we evaluated the direct effects of resistin, a novel adipocyte-derived hormone, on endothelial activation. METHODS AND RESULTS:Endothelial cells (ECs) were incubated with human re...

journal_title：Circulation

authors： Verma S,Li SH,Wang CH,Fedak PW,Li RK,Weisel RD,Mickle DA

更新日期：2003-08-12 00:00:00

abstract：BACKGROUND:Postmortem interrogations of cardiac implantable electronic devices (CIEDs), recommended at autopsy in suspected cases of sudden cardiac death, are rarely performed, and data on systematic postmortem CIED analysis in the forensic pathology are missing. The aim of the study was to determine whether nonselecti...

journal_title：Circulation

authors： Lacour P,Buschmann C,Storm C,Nee J,Parwani AS,Huemer M,Attanasio P,Boldt LH,Rauch G,Kucher A,Pieske B,Haverkamp W,Blaschke F

更新日期：2018-06-19 00:00:00

abstract：BACKGROUND:A variety of transcatheter atrial septal defect (ASD) occluders are currently in use around the world. Although for the most part effective, all of these devices lack features that would be desirable in a "perfect" device. The Helex septal occluder is a new type of device designed to improve the results of t...

journal_title：Circulation

authors： Zahn EM,Wilson N,Cutright W,Latson LA

更新日期：2001-08-07 00:00:00

abstract：BACKGROUND:Doxycycline has been shown to effectively inhibit aneurysm formation in animal models of abdominal aortic aneurysm. Although this effect is ascribed to matrix metalloproteinase-9 inhibition, such an effect is unclear in human studies. We reevaluated the effect of doxycycline on aortic wall protease content i...

journal_title：Circulation

authors： Lindeman JH,Abdul-Hussien H,van Bockel JH,Wolterbeek R,Kleemann R

更新日期：2009-04-28 00:00:00

abstract：BACKGROUND:Clinical trials have demonstrated that, compared with placebo, intensive statin therapy reduces ischemia in patients with acute coronary syndromes and in patients with stable coronary artery disease. However, no studies to date have assessed intensive versus moderate statin therapy in older patients with sta...

journal_title：Circulation

authors： Deedwania P,Stone PH,Bairey Merz CN,Cosin-Aguilar J,Koylan N,Luo D,Ouyang P,Piotrowicz R,Schenck-Gustafsson K,Sellier P,Stein JH,Thompson PL,Tzivoni D

更新日期：2007-02-13 00:00:00

abstract：BACKGROUND:Hypercholesterolemia causes an upregulation of vascular angiotensin II type 1 (AT1) receptor expression in cell culture and animal models. The presented studies were undertaken to examine AT1 receptor overexpression in hypercholesterolemic men and therapeutic interventions thereof by HMG CoA reductase inhibi...

journal_title：Circulation

authors： Nickenig G,Bäumer AT,Temur Y,Kebben D,Jockenhövel F,Böhm M

更新日期：1999-11-23 00:00:00

abstract：BACKGROUND:Age-adjusted stroke incidence has decreased over the past 50 years, likely as a result of changes in the prevalence and impact of various stroke risk factors. An updated version of the Framingham Stroke Risk Profile (FSRP) might better predict current risks in the FHS (Framingham Heart Study) and other cohor...

journal_title：Circulation

authors： Dufouil C,Beiser A,McLure LA,Wolf PA,Tzourio C,Howard VJ,Westwood AJ,Himali JJ,Sullivan L,Aparicio HJ,Kelly-Hayes M,Ritchie K,Kase CS,Pikula A,Romero JR,D'Agostino RB,Samieri C,Vasan RS,Chêne G,Howard G,Seshadri S

更新日期：2017-03-21 00:00:00

abstract：BACKGROUND:Persons with end-stage renal disease and those with lesser degrees of chronic kidney disease (CKD) have an increased risk of death after myocardial infarction (MI) that is not fully explained by associated comorbidities. Future cardiovascular event rates and the relative response to therapy in persons with m...

journal_title：Circulation

authors： Tokmakova MP,Skali H,Kenchaiah S,Braunwald E,Rouleau JL,Packer M,Chertow GM,Moyé LA,Pfeffer MA,Solomon SD

更新日期：2004-12-14 00:00:00

abstract：BACKGROUND:Conventional x-ray angiography frequently underestimates the true burden of atherosclerosis. Although intravascular ultrasound allows for imaging of coronary plaque, this invasive technique is inappropriate for screening or serial examinations. We therefore sought to develop a noninvasive free-breathing MR t...

journal_title：Circulation

authors： Botnar RM,Stuber M,Kissinger KV,Kim WY,Spuentrup E,Manning WJ

更新日期：2000-11-21 00:00:00

abstract：BACKGROUND:Reperfusion injury is insufficiently addressed in current clinical management of acute limb ischemia. Controlled reperfusion carries an enormous clinical potential and was tested in a new reality-driven rodent model. METHODS AND RESULTS:Acute hind-limb ischemia was induced in Wistar rats and maintained for ...

journal_title：Circulation

authors： Dick F,Li J,Giraud MN,Kalka C,Schmidli J,Tevaearai H

更新日期：2008-11-04 00:00:00

abstract：BACKGROUND:Diagnostic strategies with ECG and serum cardiac markers have been used to rule out acute myocardial infarction in 6 to 12 hours. The present study evaluated whether a multimarker strategy that used point-of-care measurement of myoglobin, creatine kinase (CK)-MB, and troponin I could exclude acute myocardial...

journal_title：Circulation

authors： McCord J,Nowak RM,McCullough PA,Foreback C,Borzak S,Tokarski G,Tomlanovich MC,Jacobsen G,Weaver WD

更新日期：2001-09-25 00:00:00

abstract：BACKGROUND:Current diagnostic thresholds for ambulatory blood pressure (ABP) mainly rely on statistical parameters derived from reference populations. We determined an outcome-driven reference frame for ABP measurement. METHODS AND RESULTS:We performed 24-hour ABP monitoring in 5682 participants (mean age 59.0 years; ...

journal_title：Circulation

authors： Kikuya M,Hansen TW,Thijs L,Björklund-Bodegård K,Kuznetsova T,Ohkubo T,Richart T,Torp-Pedersen C,Lind L,Ibsen H,Imai Y,Staessen JA,International Database on Ambulatory blood pressure monitoring in relation to Cardiovascular Outcom

更新日期：2007-04-24 00:00:00

abstract：OBJECTIVE:Previous studies comparing off-pump coronary artery bypass surgery (OPCABG) to conventional techniques utilizing cardiopulmonary bypass (CABG-CPB) have failed to provide patient selection guidelines. We sought to determine guidelines, attempting to rectify the limitations of previous studies. METHODS AND RES...

journal_title：Circulation

authors： Magee MJ,Coombs LP,Peterson ED,Mack MJ

更新日期：2003-09-09 00:00:00

abstract：:A patient who had disabling supraventricular tachycardia showed electrophysiologic evidence of coexistent right and left Kent bundles. The supraventricular tachycardia was accelerated by sequential antegrade and retrograde conduction over the right and left Kent bundles, respectively. Spontaneous blocking of the condu...

journal_title：Circulation

authors： Cinca J,Valle V,Gutierrez L,Figueras J,Rius J

更新日期：1980-09-01 00:00:00

abstract：BACKGROUND:Reperfusion of acutely infarcted myocardium may be beneficial in limiting infarct expansion and ventricular remodeling even if established after the time that salvage of ischemic myocardium is possible. METHODS AND RESULTS:To examine the permanency, time course, and mechanism of this effect of late reperfus...

journal_title：Circulation

authors： Boyle MP,Weisman HF

更新日期：1993-12-01 00:00:00

abstract：BACKGROUND:We tested prospectively the hypothesis that stroke development can be predicted by echolucency of carotid atherosclerotic plaques in previously symptomatic and asymptomatic patients. METHODS AND RESULTS:We followed incidence of ipsilateral ischemic strokes for 4.4 years in 111 asymptomatic and 135 symptomat...

journal_title：Circulation

authors： Grønholdt ML,Nordestgaard BG,Schroeder TV,Vorstrup S,Sillesen H

更新日期：2001-07-03 00:00:00

abstract：BACKGROUND:Extracellular matrix proteins, such as laminins, and endothelial cells are known to influence cardiomyocyte performance; however, the underlying molecular mechanisms remain poorly understood. METHODS AND RESULTS:We used a forward genetic screen in zebrafish to identify novel genes required for myocardial fu...

journal_title：Circulation

authors： Knöll R,Postel R,Wang J,Krätzner R,Hennecke G,Vacaru AM,Vakeel P,Schubert C,Murthy K,Rana BK,Kube D,Knöll G,Schäfer K,Hayashi T,Holm T,Kimura A,Schork N,Toliat MR,Nürnberg P,Schultheiss HP,Schaper W,Schaper J,

更新日期：2007-07-31 00:00:00

abstract：BACKGROUND:In vivo gene transfer into injured arteries may provide a new means to facilitate molecular understanding of and to treat the intractable fibroproliferative arterial diseases. Selection of an optimal molecule to be transferred will be a key to successful gene therapy in the future. We tested the hypothesis t...

journal_title：Circulation

authors： Ueno H,Haruno A,Morisaki N,Furuya M,Kangawa K,Takeshita A,Saito Y

更新日期：1997-10-07 00:00:00

abstract：BACKGROUND:Arterial grafts for CABG have been used increasingly, and the radial artery (RA) has become a preferable graft, secondary to the internal mammary artery (IMA). In the present study, we investigated and compared NO release and endothelium-derived hyperpolarizing factor (EDHF)-mediated hyperpolarization for IM...

journal_title：Circulation

authors： He GW,Liu ZG

更新日期：2001-09-18 00:00:00

abstract：:Hemodynamic effects of dobutamine and dopamine (both 5, 10, 15 microgram/kg/min) and epinephrine (0.04 microgram/kg/min) were studied immediately following cessation of cardiopulmonary bypass in 34 patients with preoperative evidence of left ventricular dysfunction. Significant increases in mean cardiac index were see...

journal_title：Circulation

authors： Steen PA,Tinker JH,Pluth JR,Barnh;rst DA,Tarhan S

更新日期：1978-02-01 00:00:00