Effects of digitalis on resting and isometric exercise myocardial perfusion in patients with coronary artery disease and left ventricular dysfunction.

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:Several echocardiographic dyssynchrony indexes have been proposed to identify responders to cardiac resynchronization therapy using tissue velocity and strain. The present study aimed to compare tissue velocity-derived and strain-derived dyssynchrony indexes in patients with or without systolic dysfunction a...

journal_title：Circulation

authors： Miyazaki C,Powell BD,Bruce CJ,Espinosa RE,Redfield MM,Miller FA,Hayes DL,Cha YM,Oh JK

更新日期：2008-05-20 00:00:00

abstract：BACKGROUND:The use of atherosclerotic cardiovascular disease (ASCVD) risk to personalize systolic blood pressure (SBP) treatment goals is a topic of increasing interest. Therefore, we studied whether coronary artery calcium (CAC) can further guide the allocation of anti-hypertensive treatment intensity. METHODS:We inc...

journal_title：Circulation

authors： McEvoy JW,Martin SS,Dardari ZA,Miedema MD,Sandfort V,Yeboah J,Budoff MJ,Goff DC Jr,Psaty BM,Post WS,Nasir K,Blumenthal RS,Blaha MJ

更新日期：2017-01-10 00:00:00

abstract：BACKGROUND:Mild oxidation of LDL enhances its atherogenic potential and induces a synergistic interaction with serotonin (5HT) on vascular smooth muscle cell (VSMC) proliferation. Because of its complex chemical nature, the mitogenic components of mildly oxidized LDL (moxLDL) remain unclear. METHODS AND RESULTS:We exa...

journal_title：Circulation

authors： Watanabe T,Pakala R,Koba S,Katagiri T,Benedict CR

更新日期：2001-03-13 00:00:00

abstract：BACKGROUND:Familial polymorphic ventricular tachycardia (FPVT) is characterized by exercise-induced arrhythmias and sudden cardiac death due to missense mutations in the cardiac ryanodine receptor (RyR2), an intracellular Ca2+ release channel required for excitation-contraction coupling in the heart. METHODS AND RESUL...

journal_title：Circulation

authors： Lehnart SE,Wehrens XH,Laitinen PJ,Reiken SR,Deng SX,Cheng Z,Landry DW,Kontula K,Swan H,Marks AR

更新日期：2004-06-29 00:00:00

abstract：:Postoperative fever and pericardial-pleural reaction, designated postpericardiotomy syndrome (PPS), is a common complication of cardiac surgery involving entry into the pericardium. To determine whether the etiology of PPS is viral or immunologic, we undertook a prospective, triple-blind study of consecutive long-term...

journal_title：Circulation

authors： Engle MA,Zabriskie JB,Senterfit LB,Gay WA Jr,O'Loughlin JE Jr,Ehlers KH

更新日期：1980-12-01 00:00:00

abstract：BACKGROUND:Recent findings suggest a causative role of infections in the pathogenesis of atherosclerosis. In hypothesizing an association between infectious agents and the development of atherosclerosis, we would expect a correlation to the extent of atherosclerosis. Moreover, this effect could be multiplied by the num...

journal_title：Circulation

authors： Espinola-Klein C,Rupprecht HJ,Blankenberg S,Bickel C,Kopp H,Rippin G,Victor A,Hafner G,Schlumberger W,Meyer J,AtheroGene Investigators.

更新日期：2002-01-01 00:00:00

abstract：:The left anterior descending coronary artery of four dogs and the right common carotid artery of 15 rabbits were subjected to 40-60% reduction in transluminal diameter for 1 hour by partial ligation with suture thread. Scanning electron microscopic examination of the luminal surface of these vessels revealed endotheli...

journal_title：Circulation

authors： Gertz SD,Uretsky G,Wajnberg RS,Navot N,Gotsman MS

更新日期：1981-03-01 00:00:00

abstract：BACKGROUND:There are few data regarding medium-term outcome of coronary artery bypass grafting (CABG) in patients with severe left ventricular (LV) systolic dysfunction, particularly in the modern era, and even less assessing preoperative factors that might identify patients at highest risk. METHODS AND RESULTS:Three ...

journal_title：Circulation

authors： Hillis GS,Zehr KJ,Williams AW,Schaff HV,Orzulak TA,Daly RC,Mullany CJ,Rodeheffer RJ,Oh JK

更新日期：2006-07-04 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：BACKGROUND:Alterations in the balance of matrix metalloproteinases (MMPs) and their specific tissue inhibitors (TIMPs) are involved in left ventricular (LV) remodeling. Whether their expression is related to interstitial fibrosis or LV dysfunction in patients with chronic pressure overload-induced LV hypertrophy, howev...

journal_title：Circulation

authors： Heymans S,Schroen B,Vermeersch P,Milting H,Gao F,Kassner A,Gillijns H,Herijgers P,Flameng W,Carmeliet P,Van de Werf F,Pinto YM,Janssens S

更新日期：2005-08-23 00:00:00

abstract：:Variations in the frequency of complex ventricular arrhythmias were evaluated by consecutive 24-hour long-term electrocardiographic recordings over 4 days using a two-channel recorder and computer-assisted analysis system with a weighted relative mean error of 7.5 +/ 5% (SD). Twenty patients (mean age 58 +/- 9 years ...

journal_title：Circulation

authors： Michelson EL,Morganroth J

更新日期：1980-04-01 00:00:00

abstract：BACKGROUND:In patients with acute coronary syndrome (ACS), percutaneous coronary intervention (PCI) may cause thrombus dislodgment followed by reduced flow and impaired microcirculatory function. We prospectively compared conventional PCI to a strategy of additional pretreatment using the X-sizer thrombectomy system. ...

journal_title：Circulation

authors： Beran G,Lang I,Schreiber W,Denk S,Stefenelli T,Syeda B,Maurer G,Glogar D,Siostrzonek P

更新日期：2002-05-21 00:00:00

abstract：:Increased ventricular volume is one of the most powerful predictors of reduced survival in patients with heart disease. Despite its well-documented prognostic significance, the magnitude of the progression of ventricular dilatation from the acute to the chronic phase of myocardial infarction has only recently been app...

journal_title：Circulation

authors： Pfeffer MA,Pfeffer JM

更新日期：1987-05-01 00:00:00

abstract：BACKGROUND:The clinical significance and pathophysiological mechanisms of reverse redistribution on stress-redistribution thallium-201 myocardial scintigraphy in patients with chronic coronary artery disease are unclear. Recent studies have shown that thallium-201 reinjection is a useful technique for the detection of ...

journal_title：Circulation

authors： Marin-Neto JA,Dilsizian V,Arrighi JA,Freedman NM,Perrone-Filardi P,Bacharach SL,Bonow RO

更新日期：1993-10-01 00:00:00

abstract：BACKGROUND:Soluble stem cell factor (SCF) has been shown to mobilize bone marrow stem cells and improve cardiac repair after myocardial infarction (MI). However, the effect of membrane-associated SCF on cardiac remodeling after MI is not known. The present study investigated the effects of cardiomyocyte-specific overex...

journal_title：Circulation

authors： Xiang FL,Lu X,Hammoud L,Zhu P,Chidiac P,Robbins J,Feng Q

更新日期：2009-09-22 00:00:00

abstract：:Various electrocardiographic and vectorcardiographic (ECG-VCG) patterns of ventricular conduction disturbances are inducible by premature right atrial stimulation (PRAS). These patterns are a consequence of different degrees of refractoriness in the specialized ventricular conduction system. We observed that the inter...

journal_title：Circulation

authors： Piccolo E,Raviele A,Delise P,Dainese F,Pascotto P,Totaro G,Sartori F,D'Este D

更新日期：1979-05-01 00:00:00

abstract：BACKGROUND:Heart rate reduction should benefit patients with chronic stable angina by improving myocardial perfusion and reducing myocardial oxygen demand. This study evaluated the antianginal and antiischemic effects of ivabradine, a new heart rate-lowering agent that acts specifically on the sinoatrial node. METHODS...

journal_title：Circulation

authors： Borer JS,Fox K,Jaillon P,Lerebours G,Ivabradine Investigators Group.

更新日期：2003-02-18 00:00:00

abstract：BACKGROUND:Vasodilatory shock is a potentially lethal complication of severe disease in critically ill patients. Currently, catecholamines are the most widely used vasopressor agents to support blood pressure, but loss of catecholamine pressor effects is a well-known clinical dilemma. Arginine vasopressin (AVP) has rec...

journal_title：Circulation

authors： Dünser MW,Mayr AJ,Ulmer H,Knotzer H,Sumann G,Pajk W,Friesenecker B,Hasibeder WR

更新日期：2003-05-13 00:00:00

abstract：BACKGROUND:Hypertension decreases myocardial perfusion capacity in adults for several reasons, including insufficient coronary angiogenesis with left ventricular (LV) hypertrophy, arteriolar hypertrophy, and altered vasomotion. Heparin influences growth factors that promote angiogenesis and vasodilation and inhibit art...

journal_title：Circulation

authors： Flanagan MF,Aoyagi T,Arnold LW,Maute C,Fujii AM,Currier J,Bergau D,Warren HB,Rakusan K

更新日期：1999-08-31 00:00:00

abstract：BACKGROUND:To examine the effect of plasminogen activator therapy on vascular permeability, we used a modified rabbit mesenteric model of extravascular tissue accumulation of radiolabeled albumin. METHODS AND RESULTS:Albumin deposition was measured after saline, tissue-type plasminogen activator (t-PA; 0.86 mg/kg for ...

journal_title：Circulation

authors： Rudd MA,Johnstone MT,Rabbani LE,George D,Ware JA,Loscalzo J

更新日期：1991-12-01 00:00:00

abstract：:Mitochondria have emerged as a central factor in the pathogenesis and progression of heart failure, and other cardiovascular diseases, as well, but no therapies are available to treat mitochondrial dysfunction. The National Heart, Lung, and Blood Institute convened a group of leading experts in heart failure, cardiova...

journal_title：Circulation

authors： Tian R,Colucci WS,Arany Z,Bachschmid MM,Ballinger SW,Boudina S,Bruce JE,Busija DW,Dikalov S,Dorn GW II,Galis ZS,Gottlieb RA,Kelly DP,Kitsis RN,Kohr MJ,Levy D,Lewandowski ED,McClung JM,Mochly-Rosen D,O'Brien KD,O'R

更新日期：2019-10-01 00:00:00

abstract：BACKGROUND:In PTCA patients with multivessel coronary artery disease, incomplete revascularization (IR) is the result of both pre-PTCA strategy and initial lesion outcome. The unique contribution of these components on long-term patient outcome is uncertain. METHODS AND RESULTS:From the Bypass Angioplasty Revasculariz...

journal_title：Circulation

authors： Kip KE,Bourassa MG,Jacobs AK,Schwartz L,Feit F,Alderman EL,Weiner BH,Weiss MB,Kellett MA Jr,Sharaf BL,Dimas AP,Jones RH,Sopko G,Detre KM

更新日期：1999-08-31 00:00:00

abstract：BACKGROUND:Matrix metalloproteinases (MMPs) in inflamed atherosclerotic plaques may contribute to extracellular matrix remodeling and the onset of acute thrombotic complications. METHODS AND RESULTS:To test the hypothesis that optical molecular imaging with the use of an activatable near-infrared fluorescence (NIRF) p...

journal_title：Circulation

authors： Deguchi JO,Aikawa M,Tung CH,Aikawa E,Kim DE,Ntziachristos V,Weissleder R,Libby P

更新日期：2006-07-04 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:Mutations in the cardiac sodium (Na) channel gene (SCN5A) give rise to the congenital long-QT syndrome (LQT3) and the Brugada syndrome. Na channel blockade by antiarrhythmic drugs improves the QT interval prolongation in LQT3 but worsens the Brugada syndrome ST-segment elevation. Although Na channel blockade...

journal_title：Circulation

authors： Viswanathan PC,Bezzina CR,George AL Jr,Roden DM,Wilde AA,Balser JR

更新日期：2001-09-04 00:00:00

abstract：BACKGROUND:Short-term hibernating myocardium is characterized by a decrease in contractile function in proportion to the reduced myocardial blood flow. Myocardial creatine phosphate content, initially decreased during the first minutes of ischemia, returns to near-control values, the ischemia-induced net lactate produc...

journal_title：Circulation

authors： Schulz R,Rose J,Martin C,Brodde OE,Heusch G

更新日期：1993-08-01 00:00:00

abstract：:Atherosclerotic coronary artery disease is the major cause of late cardiac transplant failure secondary to silent ischemia and infarction. To increase the longevity of cardiac homografts, we performed percutaneous transluminal coronary angioplasty (PTCA) in five male patients (aged 45 +/- 7 years, mean +/- SEM); 17 le...

journal_title：Circulation

authors： Vetrovec GW,Cowley MJ,Newton CM,Lewis SA,DiSciascio G,Thompson JA,Hastillo A,Lower R,Hess M

更新日期：1988-11-01 00:00:00

abstract：BACKGROUND:There has been considerable speculation about the role of lesion microvessels in the accumulation of leukocytes in atherosclerosis. However, direct study of microvascular recruitment of leukocytes in lesions has not been performed, and the quantitative role for this route of entry is unclear. METHODS AND RE...

journal_title：Circulation

authors： Eriksson EE

更新日期：2011-11-08 00:00:00

abstract：BACKGROUND:Patients with chronic granulomatous disease (CGD) experience immunodeficiency because of defects in the phagocyte NADPH oxidase and the concomitant reduction in reactive oxygen intermediates. This may result in a reduction in atherosclerotic injury. METHODS AND RESULTS:We prospectively assessed the prevalen...

journal_title：Circulation

authors： Sibley CT,Estwick T,Zavodni A,Huang CY,Kwan AC,Soule BP,Long Priel DA,Remaley AT,Rudman Spergel AK,Turkbey EB,Kuhns DB,Holland SM,Malech HL,Zarember KA,Bluemke DA,Gallin JI

更新日期：2014-12-02 00:00:00