Potentiation of isosorbide dinitrate effects with N-acetylcysteine in patients with chronic heart failure.

abstract：:Twelve consecutive patients who developed torsade de pointes (polymorphous ventricular tachycardia with marked QT prolongation, TdP) over a 4 year period were treated with intravenous injections of magnesium sulfate. In nine of the patients a single bolus of 2 g completely abolished the TdP within 1 to 5 min, and in t...

journal_title：Circulation

authors： Tzivoni D,Banai S,Schuger C,Benhorin J,Keren A,Gottlieb S,Stern S

更新日期：1988-02-01 00:00:00

abstract：BACKGROUND:Early risk assessment is important in patients with unstable coronary artery disease, ie, unstable angina or non-Q-wave myocardial infarction. Some previous small studies have indicated that patients with unstable angina and elevation of troponin T (tn-T) have worse short-term and long-term prognoses. In thi...

journal_title：Circulation

authors： Lindahl B,Venge P,Wallentin L

更新日期：1996-05-01 00:00:00

abstract：BACKGROUND:There are several potential physiological differences between the atriopulmonary (AP) and the total cavopulmonary connection (TCPC) Fontan circulations. Studies suggest that the TCPC reduces energy loss due to turbulence and may have more dependence on respiratory movement for pulmonary blood flow. We compar...

journal_title：Circulation

authors： Rosenthal M,Bush A,Deanfield J,Redington A

更新日期：1995-01-15 00:00:00

abstract：BACKGROUND:Resistin, a plasma protein, induces insulin resistance in rodents. Recent reports suggest that circulating levels of resistin are elevated in obese and insulin-resistant rodents and humans. Whereas rodent resistin is made in adipocytes, macrophages are a major source of human resistin. Given the convergence ...

journal_title：Circulation

authors： Reilly MP,Lehrke M,Wolfe ML,Rohatgi A,Lazar MA,Rader DJ

更新日期：2005-02-22 00:00:00

abstract：BACKGROUND:Alfieri edge-to-edge mitral repair has been used clinically with ring annuloplasty to correct ischemic mitral regurgitation (IMR), but its efficacy without concomitant ring annuloplasty has not been described in this setting. METHODS:Seventeen sheep underwent implantation of 9 radiopaque markers on the left...

journal_title：Circulation

authors： Timek TA,Nielsen SL,Lai DT,Tibayan FA,Liang D,Rodriguez F,Daughters GT,Ingels NB Jr,Miller DC

更新日期：2003-09-09 00:00:00

abstract：:Eleven patients underwent exercise testing after operative repair of anomalous origin of the left coronary artery from the pulmonary artery. Five patients repaired after 2 years of age comprised a childhood surgery group, and six patients repaired before 2 years of age comprised an infant surgery group. All patients w...

journal_title：Circulation

authors： Paridon SM,Farooki ZQ,Kuhns LR,Arciniegas E,Pinsky WW

更新日期：1990-04-01 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：:An experiment was designed to determine optimal methods of myocardial reperfusion after normothermic ischemic arrest in the in vivo pig heart. Four variables were studied: 1) ischemic arrest for 15 minutes repeated six times vs 30 minutes repeated three times: 2) coronary reperfusion between each arrest period lasting...

journal_title：Circulation

authors： Engelman RM,Levitsky S,Wyndham CR

更新日期：1977-09-01 00:00:00

abstract：BACKGROUND:Epidemiological findings suggest an association between low-for-age birth weight and the risk to develop coronary heart diseases in adulthood. During pregnancy, an imbalance between fetal demands and supply may result in permanent alterations of neuroendocrine development in the fetus. We evaluated whether c...

journal_title：Circulation

authors： Ruijtenbeek K,le Noble FA,Janssen GM,Kessels CG,Fazzi GE,Blanco CE,De Mey JG

更新日期：2000-12-05 00:00:00

abstract：BACKGROUND:Less invasive methods are replacing traditional invasive means of measuring coronary flow reserve (CFR). Transesophageal echocardiography (TEE) is becoming a useful tool for evaluation of coronary artery disease and has recently been used to measure CFR. This has always been done using dipyridamole, but aden...

journal_title：Circulation

authors： Redberg RF,Sobol Y,Chou TM,Malloy M,Kumar S,Botvinick E,Kane J

更新日期：1995-07-15 00:00:00

abstract：BACKGROUND:Previous trials of PCSK9 (proprotein convertase subtilisin-kexin type 9) inhibitors demonstrated reductions in major adverse cardiovascular events, but not death. We assessed the effects of alirocumab on death after index acute coronary syndrome. METHODS:ODYSSEY OUTCOMES (Evaluation of Cardiovascular Outcom...

journal_title：Circulation

authors： Steg PG,Szarek M,Bhatt DL,Bittner VA,Brégeault MF,Dalby AJ,Diaz R,Edelberg JM,Goodman SG,Hanotin C,Harrington RA,Jukema JW,Lecorps G,Mahaffey KW,Moryusef A,Ostadal P,Parkhomenko A,Pordy R,Roe MT,Tricoci P,Vogel R

更新日期：2019-07-09 00:00:00

abstract：BACKGROUND:We have developed a new measure of myocardial viability, the water-perfusable tissue index (PTI), which is calculated from transmission, C15O, and H2(15)O positron emission tomography (PET) data sets. It is defined as the proportion of the total anatomical tissue within a given region of interest (ROI) that ...

journal_title：Circulation

authors： Yamamoto Y,de Silva R,Rhodes CG,Araujo LI,Iida H,Rechavia E,Nihoyannopoulos P,Hackett D,Galassi AR,Taylor CJ

更新日期：1992-07-01 00:00:00

abstract：BACKGROUND:Beneficial effects of exercise training on cardiovascular function in chronic heart failure (CHF) have been suggested previously, but the underlying mechanisms are unknown. We tested whether daily exercise training improves systemic hemodynamics and preserves endothelium-mediated vasodilator function during ...

journal_title：Circulation

authors： Wang J,Yi GH,Knecht M,Cai BL,Poposkis S,Packer M,Burkhoff D

更新日期：1997-10-21 00:00:00

abstract：BACKGROUND:Fetal tachycardia may cause hydrops fetalis and lead to fetal death. No unanimity of opinion exists regarding the optimum treatment. This study evaluates our experience with transplacental sotalol therapy to treat fetal tachycardias in terms of safety and efficacy. METHODS AND RESULTS:The charts of 21 patie...

journal_title：Circulation

authors： Oudijk MA,Michon MM,Kleinman CS,Kapusta L,Stoutenbeek P,Visser GH,Meijboom EJ

更新日期：2000-06-13 00:00:00

abstract：BACKGROUND:Thrombus regression in heparin-treated, acute deep venous thrombosis of the lower extremity is poorly documented in the literature; different rates of thrombus resolution and recanalization are reported. METHODS AND RESULTS:In a prospective follow-up study, duplex scanning was used to evaluate the thrombus ...

journal_title：Circulation

authors： van Ramshorst B,van Bemmelen PS,Hoeneveld H,Faber JA,Eikelboom BC

更新日期：1992-08-01 00:00:00

abstract：:Organ donor scarcity has resulted in an increasing number of long-distance cardiac allograft procurements. The effect on short-term (90-day) survival and cardiac function was assessed in a consecutive series of 167 heart transplants performed between April 1981 and July 1988. During that time, total allograft ischemic...

journal_title：Circulation

authors： Pflugfelder PW,Thomson D,Singh NR,Menkis AH,McKenzie FN,Kostuk WJ

更新日期：1989-11-01 00:00:00

abstract：BACKGROUND:The extent of the peri-infarct zone by magnetic resonance imaging (MRI) has been related to all-cause mortality in patients with coronary artery disease. This relationship may result from arrhythmogenesis in the infarct border. However, the relationship between tissue heterogeneity in the infarct periphery a...

journal_title：Circulation

authors： Schmidt A,Azevedo CF,Cheng A,Gupta SN,Bluemke DA,Foo TK,Gerstenblith G,Weiss RG,Marbán E,Tomaselli GF,Lima JA,Wu KC

更新日期：2007-04-17 00:00:00

abstract：BACKGROUND:Iron overload has an increasing worldwide prevalence and is associated with significant cardiovascular morbidity and mortality. Elevated iron levels in the myocardium lead to impaired systolic and diastolic function and elevated oxidative stress. Taurine accounts for 25% to 50% of the amino acid pool in myoc...

journal_title：Circulation

authors： Oudit GY,Trivieri MG,Khaper N,Husain T,Wilson GJ,Liu P,Sole MJ,Backx PH

更新日期：2004-04-20 00:00:00

abstract：BACKGROUND:Adenosine acutely reconnects pulmonary veins (PVs) after radiofrequency application, revealing "dormant conduction" and identifying PVs at risk of reconnection, but the underlying mechanisms are unknown. METHODS AND RESULTS:Canine PV and left-atrial (LA) action potentials were recorded with standard microel...

journal_title：Circulation

authors： Datino T,Macle L,Qi XY,Maguy A,Comtois P,Chartier D,Guerra PG,Arenal A,Fernández-Avilés F,Nattel S

更新日期：2010-03-02 00:00:00

abstract：BACKGROUND:Estradiol (E2) modulates the kinetics of circulating endothelial progenitor cells (EPCs) and favorably affects neovascularization after ischemic injury. However, the roles of estrogen receptors alpha (ER alpha) and beta (ER beta) in EPC biology are largely unknown. METHODS AND RESULTS:In response to E2, mig...

journal_title：Circulation

authors： Hamada H,Kim MK,Iwakura A,Ii M,Thorne T,Qin G,Asai J,Tsutsumi Y,Sekiguchi H,Silver M,Wecker A,Bord E,Zhu Y,Kishore R,Losordo DW

更新日期：2006-11-21 00:00:00

abstract：BACKGROUND:This study was designed to investigate whether collagen type I degradation is altered in patients with essential hypertension and whether this alteration could be related to disturbances in the serum matrix metalloproteinase pathway of collagen degradation. A second aim of the study was to assess whether som...

journal_title：Circulation

authors： Laviades C,Varo N,Fernández J,Mayor G,Gil MJ,Monreal I,Díez J

更新日期：1998-08-11 00:00:00

abstract：BACKGROUND:The effect of human immunodeficiency virus (HIV) on the development of peripheral artery disease (PAD) remains unclear. We investigated whether HIV infection is associated with an increased risk of PAD after adjustment for traditional atherosclerotic risk factors in a large cohort of HIV-infected (HIV+) and ...

journal_title：Circulation

authors： Beckman JA,Duncan MS,Alcorn CW,So-Armah K,Butt AA,Goetz MB,Tindle HA,Sico JJ,Tracy RP,Justice AC,Freiberg MS

更新日期：2018-07-17 00:00:00

abstract：:A series of 252 isolated aortic homograft valves in 248 patients have been followed for 9 to 16.5 years (mean 10.8). The valves were sterilized in antibiotic solution and stored in a nutrient medium at 4 degrees C and were nonvital. There were 15 in-hospital deaths (6%) and a mortality of 2.7% in patients undergoing a...

journal_title：Circulation

authors： Barratt-Boyes BG,Roche AH,Subramanyan R,Pemberton JR,Whitlock RM

更新日期：1987-04-01 00:00:00

abstract：BACKGROUND:Previous studies have shown that thrombin is a potent though slow-acting mitogen for vascular smooth muscle cells (SMC). Because thrombin generation in vivo is accompanied by platelet activation, it has been suggested that platelet-derived factors might enhance thrombin-induced SMC proliferation. No informat...

journal_title：Circulation

authors： Zucker TP,Bönisch D,Muck S,Weber AA,Bretschneider E,Glusa E,Schrör K

更新日期：1998-02-17 00:00:00

abstract：BACKGROUND:In various heart disease paradigms, atria show stronger fibrotic responses than ventricles. The possibility that atrial and ventricular fibroblasts respond differentially to pathological stimuli has not been examined. METHODS AND RESULTS:We compared various morphological, secretory, and proliferative respon...

journal_title：Circulation

authors： Burstein B,Libby E,Calderone A,Nattel S

更新日期：2008-04-01 00:00:00

abstract：:To determine the evolution of amyloid heart disease, 28 patients with familial amyloid polyneuropathy (FAP) were studied by echocardiography. The incidence and degree of the abnormalities were correlated with the neurologic disabilities, duration of the illness, and age in cross-sectional studies. Serial studies were ...

journal_title：Circulation

authors： Hongo M,Ikeda S

更新日期：1986-02-01 00:00:00

abstract：:Prior studies have demonstrated the presence of inhomogeneities in myocardial [K+]e after serial 10-minute occlusions of the left anterior descending coronary artery in the pig, even within restricted locations of an ischemic zone. These inhomogeneities are thought to underlie the electrophysiological abnormalities re...

journal_title：Circulation

authors： Johnson TA,Engle CL,Boyd LM,Koch GG,Gwinn M,Gettes LS

更新日期：1991-02-01 00:00:00

abstract：BACKGROUND:Current consensus statements maintain that endoscopic vein harvesting (EVH) should be standard care in coronary artery bypass graft surgery, but vein quality and clinical outcomes have been questioned. The VICO trial (Vein Integrity and Clinical Outcomes) was designed to assess the impact of different vein h...

journal_title：Circulation

authors： Krishnamoorthy B,Critchley WR,Thompson AJ,Payne K,Morris J,Venkateswaran RV,Caress AL,Fildes JE,Yonan N

更新日期：2017-10-31 00:00:00

abstract：BACKGROUND:Population screening for abdominal aortic aneurysm (AAA) has commenced in several countries, and has been shown to reduce AAA-related mortality by up to 50%. Most men who screen positive have an AAA <5.5 cm in diameter, the referral threshold for treatment, and are entered into an ultrasound surveillance pro...

journal_title：Circulation

authors： Oliver-Williams C,Sweeting MJ,Jacomelli J,Summers L,Stevenson A,Lees T,Earnshaw JJ

更新日期：2019-03-12 00:00:00

abstract：BACKGROUND:Influenza infection is a serious event for patients with heart failure (HF). Little knowledge exists about the association between influenza vaccination and outcome in patients with HF. This study sought to determine whether influenza vaccination is associated with improved long-term survival in patients wit...

journal_title：Circulation

authors： Modin D,Jørgensen ME,Gislason G,Jensen JS,Køber L,Claggett B,Hegde SM,Solomon SD,Torp-Pedersen C,Biering-Sørensen T

更新日期：2019-01-29 00:00:00