Role of the sympathetic nervous system in the genesis of ventricular arrhythmia.

abstract：:The incidence of valvular heart disease is expected to increase over the next several decades as a large proportion of the US demographic advances into the later decades of life. At the same time, the next several years can be anticipated to bring a broad transition of surgical therapy to minimally invasive (minithora...

journal_title：Circulation

authors： Rosengart TK,Feldman T,Borger MA,Vassiliades TA Jr,Gillinov AM,Hoercher KJ,Vahanian A,Bonow RO,O'Neill W,American Heart Association Council on Cardiovascular Surgery and Anesthesia.,American Heart Association Council on Clinical Card

更新日期：2008-04-01 00:00:00

abstract：BACKGROUND:Few data are available on the long-term outcome of patients who undergo laser-assisted balloon angioplasty for recanalization of occluded peripheral arteries. Because the cost of laser angioplasty is high, the value of the method should be carefully analyzed before it can be considered a routine method for r...

journal_title：Circulation

authors： Geschwind HJ,Aptecar E,Boussignac G,Dubois-Randé JL,Zelinsky R,Poirot G,Tomaru T

更新日期：1991-03-01 00:00:00

abstract：BACKGROUND:An inverse association between moderate alcohol consumption and coronary heart disease (CHD) has been observed in several epidemiological studies. To assess whether a similar association exists among diabetics, we examined the relation between light to moderate alcohol consumption and CHD in men with and wit...

journal_title：Circulation

authors： Ajani UA,Gaziano JM,Lotufo PA,Liu S,Hennekens CH,Buring JE,Manson JE

更新日期：2000-08-01 00:00:00

abstract：:The purpose of this investigation was to determine whether blood vessels could develop de novo between an extracardiac artery and a collateral-dependent zone of the heart and to quantify the nutritive blood flow afforded by the new vessels. We also adapted the preparation so that angiogenically active agents could be ...

journal_title：Circulation

authors： Unger EF,Sheffield CD,Epstein SE

更新日期：1990-10-01 00:00:00

abstract：:Echocardiography and Doppler ultrasound are useful in evaluating a variety of pathological conditions affecting the pericardium. Cardiac tamponade results in right atrial collapse and right ventricular diastolic collapse detectable by echocardiography. These echocardiographic signs have a high degree of sensitivity an...

journal_title：Circulation

authors： Chandraratna PA

更新日期：1991-09-01 00:00:00

abstract：BACKGROUND:Mutations in the ryanodine 2 receptor (RyR2) gene have been identified in patients with catecholaminergic polymorphic ventricular tachycardia. We examined the cellular basis for the ECG features and arrhythmia mechanisms using low-dose caffeine to mimic the defective calcium homeostasis encountered under the...

journal_title：Circulation

authors： Nam GB,Burashnikov A,Antzelevitch C

更新日期：2005-05-31 00:00:00

abstract：:The Academic Research Consortium (ARC)-2 initiative revisited the clinical and angiographic end point definitions in coronary device trials, proposed in 2007, to make them more suitable for use in clinical trials that include increasingly complex lesion and patient populations and incorporate novel devices such as bio...

journal_title：Circulation

authors： Garcia-Garcia HM,McFadden EP,Farb A,Mehran R,Stone GW,Spertus J,Onuma Y,Morel MA,van Es GA,Zuckerman B,Fearon WF,Taggart D,Kappetein AP,Krucoff MW,Vranckx P,Windecker S,Cutlip D,Serruys PW,Academic Research Consortium

更新日期：2018-06-12 00:00:00

abstract：:To evaluate the severity of heart failure, cardiopulmonary exercise testing was performed in 99 normal subjects and in 382 patients with cardiac disease. Anaerobic threshold, peak oxygen uptake, and the ratio of increase in oxygen uptake to work-rate increment were determined by ventilatory and gas exchange measuremen...

journal_title：Circulation

authors： Itoh H,Taniguchi K,Koike A,Doi M

更新日期：1990-01-01 00:00:00

abstract：:Hemodynamic and clinical evaluations of 123 patients with acute myocardial infarction were performed during the first hour of admission to the hospital. In the 123 patients, the right atrial pressure was less than 10 mm Hg in 49 patients, the right atrial oxygen saturation was less than 70% in 97 patients, the arterio...

journal_title：Circulation

authors： Ramo BW,Myers N,Wallace AG,Starmer F,Clark DO,Whalen RE

更新日期：1970-10-01 00:00:00

abstract：:Regional myocardial function and blood flow were determined for 48 hours after permanent occlusion of the left circumflex coronary artery in conscious swine. Systolic wall thickening and end-diastolic wall thickness (EDWTh) were correlated with regional myocardial flow (RMBF) at 15 minutes, 24 and 48 hours after occlu...

journal_title：Circulation

authors： Savage RM,Guth B,White FC,Hagan AD,Bloor CM

更新日期：1981-10-01 00:00:00

abstract：BACKGROUND:Simvastatin attenuates ischemia and reperfusion in normocholesterolemic animals by stabilizing endothelial nitric oxide synthase activity and inhibiting neutrophil-mediated injury. Because endothelial dysfunction is a detrimental effect of hypercholesterolemia, we examined whether short-term treatment with s...

journal_title：Circulation

authors： Scalia R,Gooszen ME,Jones SP,Hoffmeyer M,Rimmer DM 3rd,Trocha SD,Huang PL,Smith MB,Lefer AM,Lefer DJ

更新日期：2001-05-29 00:00:00

abstract：BACKGROUND:We compared the efficacy and safety of different dosages of a low-molecular-weight heparin, CY 216 D (Fraxiparine), in the treatment of submassive pulmonary embolism with unfractionated heparin in a prospective, randomized, dose-finding study. METHODS AND RESULTS:The primary outcome was the evolution of pul...

journal_title：Circulation

authors： Théry C,Simonneau G,Meyer G,Hélénon O,Bridey F,Armagnac C,d'Azemar P,Coquart JP

更新日期：1992-04-01 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:Imaging of the flow convergence region (FCR) proximal to a regurgitant orifice has been shown to provide a method for quantifying the regurgitant flow rate. According to the continuity principle, the FCR is constituted by concentric hemispheric isovelocity surfaces centered at the orifice. The flow rate is c...

journal_title：Circulation

authors： Bargiggia GS,Tronconi L,Sahn DJ,Recusani F,Raisaro A,De Servi S,Valdes-Cruz LM,Montemartini C

更新日期：1991-10-01 00:00:00

abstract：:Echocardiographic and cardiac catheterization findings were compared in 61 patients with mitral stenosis without other significant lesions in an attempt to determine the clinical usefulness of echocardiography in the assessment of such patients. There was a poor correlation between the E-F slope on the echocardiogram ...

journal_title：Circulation

authors： Cope GD,Kisslo JA,Johnson ML,Behar VS

更新日期：1975-10-01 00:00:00

abstract：BACKGROUND:An inverse association between height and risk of coronary heart disease (CHD) has been reported in several case-control and cohort studies, but the reasons for the association remain uncertain. We evaluated this association among 22,071 male physicians, a population homogeneous for high educational attainme...

journal_title：Circulation

authors： Hebert PR,Rich-Edwards JW,Manson JE,Ridker PM,Cook NR,O'Connor GT,Buring JE,Hennekens CH

更新日期：1993-10-01 00:00:00

abstract：BACKGROUND:Oxygen administration is currently used in clinical medicine to improve peripheral oxygen delivery to tissues threatened by ischemia. However, conflicting results have been reported on the effects of oxygen in ischemic areas. This study was aimed at investigating the effects of 40% oxygen inhalation on the s...

journal_title：Circulation

authors： Bongard O,Bounameaux H,Fagrell B

更新日期：1992-09-01 00:00:00

abstract：BACKGROUND:Coronary heart disease (CHD) represents the largest share of cardiovascular disease in the United States, but there are conspicuous discrepancies between CHD and total cardiovascular death rates across the states, possibly due in part to variations in physician assignment of causes of death. Our aim was to i...

journal_title：Circulation

authors： Murray CJ,Kulkarni SC,Ezzati M

更新日期：2006-05-02 00:00:00

abstract：BACKGROUND:N(omega)-nitro-L-arginine methyl ester (l-NAME) is widely used to inhibit endothelial synthesis of NO in vivo. However, it is controversial whether the long-term vascular effects of l-NAME are mediated primarily by inhibition of endothelial NO synthesis. We addressed this point in mice that are deficient in ...

journal_title：Circulation

authors： Suda O,Tsutsui M,Morishita T,Tanimoto A,Horiuchi M,Tasaki H,Huang PL,Sasaguri Y,Yanagihara N,Nakashima Y

更新日期：2002-09-24 00:00:00

abstract：BACKGROUND:Hypercholesterolemic mice lacking factors required for activation of CD4+ T cells are characterized by reduced development of atherosclerosis. Consequently, it has been assumed that atherosclerosis involves loss of tolerance against modified self-antigens generated in response to hypercholesterolemia and tha...

journal_title：Circulation

authors： Wigren M,Rattik S,Yao Mattisson I,Tomas L,Grönberg C,Söderberg I,Alm R,Sundius L,Ljungcrantz I,Björkbacka H,Fredrikson GN,Nilsson J

更新日期：2019-05-28 00:00:00

abstract：BACKGROUND:Retrospective studies in dialysis patients have reported increased survival after coronary artery bypass (CAB) compared with coronary artery stenting and PTCA. The purpose of this study was to compare the long-term outcome of renal transplant recipients after stent, PTCA, or CAB with or without internal mamm...

journal_title：Circulation

authors： Herzog CA,Ma JZ,Collins AJ

更新日期：2004-06-15 00:00:00

abstract：:Depression of myocardial conduction velocity can be an important mechanism of action of antiarrhythmic drugs but it can also facilitate arrhythmogenesis. We used lidocaine in an anesthetized canine preparation to address the hypothesis that drug-induced rate-dependent conduction velocity depression causes ventricular ...

journal_title：Circulation

authors： Anderson KP,Walker R,Lux RL,Ershler PR,Menlove R,Williams MR,Krall R,Moddrelle D

更新日期：1990-03-01 00:00:00

abstract：:The acute hemodynamic effects of dobutamine and nitroprusside were compared in 19 patients with low output cardiac failure. At dosage levels yielding similar increases in cardiac index (12 patients), nitroprusside resulted in significantly lower arterial systolic and wedge pressures and did not increase heart rate sug...

journal_title：Circulation

authors： Berkowitz C,McKeever L,Croke RP,Jacobs WR,Loeb HS,Gunnar RM

更新日期：1977-12-01 00:00:00

abstract：BACKGROUND:Fat inflammation may play an important role in comorbidities associated with obesity such as atherosclerosis. METHODS AND RESULTS:To first establish feasibility of fat transplantation, epididymal fat pads were harvested from wild-type C57BL/6J mice and transplanted into leptin-deficient (Lep(ob/ob)) mice. F...

journal_title：Circulation

authors： Ohman MK,Shen Y,Obimba CI,Wright AP,Warnock M,Lawrence DA,Eitzman DT

更新日期：2008-02-12 00:00:00

abstract：BACKGROUND:NADH/NADPH oxidase is an important source of superoxide in the vasculature. Recently, we found that polymorphism of the gene p22phox, a critical component of this oxidase, is associated with a risk of coronary artery disease. The aim of this study was to investigate the localization of p22phox in human coron...

journal_title：Circulation

authors： Azumi H,Inoue N,Takeshita S,Rikitake Y,Kawashima S,Hayashi Y,Itoh H,Yokoyama M

更新日期：1999-10-05 00:00:00

abstract：BACKGROUND:Defining the arrhythmogenic substrate is essential for successful ablation of scar-related ventricular tachycardia. The visual characteristics of endocardial ischemic scar have not been described in vivo. The goal of this study was (1) to quantify the visual characteristics of normal tissue, scar border zone...

journal_title：Circulation

authors： Betensky BP,Jauregui M,Campos B,Michele J,Marchlinski FE,Oley L,Wylie B,Robinson D,Gerstenfeld EP

更新日期：2012-10-23 00:00:00

abstract：BACKGROUND:Considerable controversy exists on the association between coffee consumption and cardiovascular disease (CVD) risk. A meta-analysis was performed to assess the dose-response relationship of long-term coffee consumption with CVD risk. METHODS AND RESULTS:PubMed and EMBASE were searched for prospective cohor...

journal_title：Circulation

authors： Ding M,Bhupathiraju SN,Satija A,van Dam RM,Hu FB

更新日期：2014-02-11 00:00:00

abstract：BACKGROUND:Adverse cardiovascular events associated with thrombotic occlusion occur in 4% to 12.8% of patients after coronary angioplasty. Recently, potent antiplatelet agents have been used to reduce those thrombotic complications. Tirofiban is a highly selective, short-acting inhibitor of fibrinogen binding to platel...

journal_title：Circulation

authors：

更新日期：1997-09-02 00:00:00

abstract：BACKGROUND:Systemic delivery of bone marrow-derived mesenchymal stem cells (BM-MSCs) is an attractive approach for myocardial repair. We aimed to test this strategy in a rat model after myocardial infarction (MI). METHODS AND RESULTS:BM-MSCs were obtained from rat bone marrow, expanded in vitro to a purity of >50%, an...

journal_title：Circulation

authors： Barbash IM,Chouraqui P,Baron J,Feinberg MS,Etzion S,Tessone A,Miller L,Guetta E,Zipori D,Kedes LH,Kloner RA,Leor J

更新日期：2003-08-19 00:00:00

abstract：:Background: In ISCHEMIA, an initial invasive strategy did not significantly reduce rates of cardiovascular events or all-cause mortality compared with a conservative strategy in patients with stable ischemic heart disease and moderate/severe myocardial ischemia. The most frequent component of composite cardiovascular ...

journal_title：Circulation

authors： Chaitman BR,Alexander KP,Cyr DD,Berger JS,Reynolds HR,Bangalore S,Boden WE,Lopes RD,Demkow M,Perna GP,Riezebos RK,McFalls EO,Banerjee S,Bagai A,Gosselin G,O'Brien SM,Rockhold FW,Waters DD,Thygesen KA,Stone GW,Whit

更新日期：2020-12-03 00:00:00