Relationship between the 12-lead electrocardiogram during ventricular tachycardia and endocardial site of origin in patients with coronary artery disease.

abstract：:Premature opening of the pulmonary valve (opening independent of atrial or ventricular systole) was originally described in a case of sinus of Valsalva rupture into the right atrium. Since that time we have observed five additional cases in which the pulmonary valve opened prematurely. Entities encountered included: 1...

journal_title：Circulation

authors： Wann LS,Weyman AE,Dillon JC,Feigenbaum H

更新日期：1977-01-01 00:00:00

abstract：BACKGROUND:The alpha(v)beta3 integrin plays a critical role in cell proliferation and migration. We hypothesized that vascular cell proliferation, a hallmark of injury-induced remodeling, can be tracked by targeting alpha(v)beta3 integrin expression in vivo. METHODS AND RESULTS:RP748, a novel 111In-labeled alpha(v)bet...

journal_title：Circulation

authors： Sadeghi MM,Krassilnikova S,Zhang J,Gharaei AA,Fassaei HR,Esmailzadeh L,Kooshkabadi A,Edwards S,Yalamanchili P,Harris TD,Sinusas AJ,Zaret BL,Bender JR

更新日期：2004-07-06 00:00:00

abstract：BACKGROUND:Although the use of physical signs for the diagnosis of ventricular tachycardia (VT) was described in the early 1900s, their value in this role has never been systematically assessed. METHODS AND RESULTS:Using a blinded, randomized protocol, we examined the ability of 26 clinicians to detect ventriculoatria...

journal_title：Circulation

authors： Garratt CJ,Griffith MJ,Young G,Curzen N,Brecker S,Rickards AF,Camm AJ

更新日期：1994-12-01 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:Although global ischemia induces troponin I (TnI) degradation, regional ischemia does not. We hypothesized that this disparity is related to preload-induced proteolysis, which varies as a function of the amount of myocardium at risk of ischemia. METHODS AND RESULTS:Isolated rat hearts were buffer-perfused a...

journal_title：Circulation

authors： Feng J,Schaus BJ,Fallavollita JA,Lee TC,Canty JM Jr

更新日期：2001-04-24 00:00:00

abstract：BACKGROUND:Considering the controversial results published in the literature concerning associations between human leukocyte antigens (HLA) and rheumatic fever (RF), the purpose of the present study was to investigate by means of cosegregation analysis the participation of HLA genes in susceptibility to RF. METHODS AN...

journal_title：Circulation

authors： Gerbase-DeLima M,Scala LC,Temin J,Santos DV,Otto PA

更新日期：1994-01-01 00:00:00

abstract：BACKGROUND:Coronary irradiation is a new concept to reduce restenosis. We evaluated the feasibility and safety of intracoronary irradiation with a balloon catheter filled with (188)Re, a liquid, high-energy beta-emitter. METHODS AND RESULTS:Irradiation with 15 Gy at 0.5-mm tissue depth was performed in 28 lesions afte...

journal_title：Circulation

authors： Höher M,Wöhrle J,Wohlfrom M,Hanke H,Voisard R,Osterhues HH,Kochs M,Reske SN,Hombach V,Kotzerke J

更新日期：2000-05-23 00:00:00

abstract：:Amiodarone is the most effective antiarrhythmic drug for maintaining sinus rhythm for patients with atrial fibrillation. Extra-cardiac side effects have been a limiting factor, especially during chronic use, and may offset its benefits. Dronedarone is a noniodinated benzofuran derivative of amiodarone that has been de...

journal_title：Circulation

authors： Patel C,Yan GX,Kowey PR

更新日期：2009-08-18 00:00:00

abstract：BACKGROUND:Erosion and rupture of coronary atheromas are the events preceding the vast majority of acute coronary syndromes. The shoulder regions of atheromas, the sites at which erosion or rupture is most likely to occur, are the sites at which mast cells accumulate. These cells are filled with neutral proteases capab...

journal_title：Circulation

authors： Kovanen PT,Kaartinen M,Paavonen T

更新日期：1995-09-01 00:00:00

abstract：BACKGROUND:Whether knowledge of genetic risk for coronary heart disease (CHD) affects health-related outcomes is unknown. We investigated whether incorporating a genetic risk score (GRS) in CHD risk estimates lowers low-density lipoprotein cholesterol (LDL-C) levels. METHODS AND RESULTS:Participants (n=203, 45-65 year...

journal_title：Circulation

authors： Kullo IJ,Jouni H,Austin EE,Brown SA,Kruisselbrink TM,Isseh IN,Haddad RA,Marroush TS,Shameer K,Olson JE,Broeckel U,Green RC,Schaid DJ,Montori VM,Bailey KR

更新日期：2016-03-22 00:00:00

abstract：BACKGROUND:Interleukin-8 (IL-8) secreted from endothelial cells is a powerful neutrophil chemoattractant and activator. We hypothesized that human endothelial cells deprived of oxygen would secrete IL-8, which might translate into elevated IL-8 production after cardiac ischemia. Furthermore, we hypothesized that corona...

journal_title：Circulation

authors： Oz MC,Liao H,Naka Y,Seldomridge A,Becker DN,Michler RE,Smith CR,Rose EA,Stern DM,Pinsky DJ

更新日期：1995-11-01 00:00:00

abstract：BACKGROUND:The aim of this study was to determine whether antianginal medications affect the prognostic value of pharmacological stress echocardiography. METHODS AND RESULTS:From the EPIC-EDIC Data Bank, 7333 patients (5452 men; age; 59+/-10 years) underwent pharmacological stress echocardiography with either high-dos...

journal_title：Circulation

authors： Sicari R,Cortigiani L,Bigi R,Landi P,Raciti M,Picano E,Echo-Persantine International Cooperative (EPIC) Study Group.,Echo-Dobutamine International Cooperative (EDIC) Study Group.

更新日期：2004-05-25 00:00:00

abstract：BACKGROUND:Coronary perforation is a life-threatening complication of percutaneous interventions. In the past few years, the implantation of covered stents has emerged as a strategy for treatment when the traditional conservative approach (ie, prolonged balloon inflation and reversal of anticoagulation) fails. METHODS...

journal_title：Circulation

authors： Briguori C,Nishida T,Anzuini A,Di Mario C,Grube E,Colombo A

更新日期：2000-12-19 00:00:00

abstract：BACKGROUND:Whether reperfusion can cause necrosis of previously viable myocytes (lethal reperfusion injury) remains controversial. Numerous studies examined the ability of various agents to prevent or limit reperfusion injury, but the results were contradictory. In a single-canine-heart model of ischemia-reperfusion, w...

journal_title：Circulation

authors： Zahger D,Yano J,Chaux A,Fishbein MC,Ganz W

更新日期：1995-06-15 00:00:00

abstract：BACKGROUND:Vascular smooth muscle cell (VMSC) proliferation is an essential component of myointimal hyperplasia, which is implicated in the failure of 30% to 50% of vascular interventions, such as coronary angioplasty and peripheral vein grafting. We have shown that cells derived from stenotic lesions in infrainguinal ...

journal_title：Circulation

authors： Refson JS,Schachter M,Patel MK,Hughes AD,Munro E,Chan P,Wolfe JH,Sever PS

更新日期：1998-06-30 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:Aortic valve replacement remains the treatment of choice for aortic valve disease, even in the extreme elderly who may present with advanced symptoms. Defining risk factors for short-term survival was the object of this study. METHODS AND RESULTS:This was a retrospective analysis of 717 patients at least 70...

journal_title：Circulation

authors： Aranki SF,Rizzo RJ,Couper GS,Adams DH,Collins JJ Jr,Gildea JS,Kinchla NM,Cohn LH

更新日期：1993-11-01 00:00:00

abstract：BACKGROUND:Outcomes for organ transplantation are constantly improving because of advances in organ preservation, surgical techniques, immune clinical monitoring, and immunosuppressive treatment preventing acute transplant rejection. However, chronic rejection including transplant vasculopathy still limits long-term pa...

journal_title：Circulation

authors： Galvani S,Trayssac M,Augé N,Thiers JC,Calise D,Krell HW,Sallusto F,Kamar N,Rostaing L,Thomsen M,Nègre-Salvayre A,Salvayre R

更新日期：2011-12-13 00:00:00

abstract：:Coronary arteriography was performed before and after the intracoronary injection of nitroglycerin to determine the presence or absence of spasm in patients within the first 12 hours of acute myocardial infarction. Coronary arterial spasm was demonstrated in six of fifteen (40%) acute myocardial infarctions associated...

journal_title：Circulation

authors： Oliva PB,Breckinridge JC

更新日期：1977-09-01 00:00:00

abstract：BACKGROUND:Although the left prepectoral site is preferred for "hot can" placement, this site is unavailable in some patients. We evaluated the influence of electrode location on defibrillation thresholds with alternative hot can and transvenous lead configurations. METHODS AND RESULTS:Three interrelated studies were ...

journal_title：Circulation

authors： Yamanouchi Y,Mowrey KA,Niebauer MJ,Tchou PJ,Wilkoff BL

更新日期：1997-12-16 00:00:00

abstract：BACKGROUND:The Ross operation is an alternative to mechanical aortic valve replacement in the young. Early dilatation of the pulmonary autograft root exposed to the systemic circulation has been reported. To define the prevalence of, risk factors for, and consequences of late autograft dilatation, outcome in all consec...

journal_title：Circulation

authors： Luciani GB,Casali G,Favaro A,Prioli MA,Barozzi L,Santini F,Mazzucco A

更新日期：2003-09-09 00:00:00

abstract：BACKGROUND:Epinephrine has been shown to impair pulmonary excretion of CO2 during resuscitation. This phenomenon was investigated in a rodent model of cardiac arrest and conventional resuscitation. METHODS AND RESULTS:The effects of racemic epinephrine were compared with the selective alpha 1-agonist methoxamine and w...

journal_title：Circulation

authors： Tang W,Weil MH,Gazmuri RJ,Sun S,Duggal C,Bisera J

更新日期：1991-11-01 00:00:00

abstract：:To determine the long-term efficacy of apical left ventricular to aortic conduits in palliating complex left ventricular outflow obstruction, we reviewed our entire experience of 20 pediatric patients who underwent placement of a composite porcine valve-bearing conduit from the left ventricular apex to the aorta from ...

journal_title：Circulation

authors： Frommelt PC,Rocchini AP,Bove EL

更新日期：1991-11-01 00:00:00

abstract：:Two guidelines from the American College of Cardiology (ACC), the American Heart Association (AHA), and collaborating societies address the risk of aortic dissection in patients with bicuspid aortic valves and severe aortic enlargement: the "2010 ACCF/AHA/AATS/ACR/ASA/SCA/SCAI/SIR/STS/SVM Guidelines for the Diagnosis ...

journal_title：Circulation

authors： 2010 ACCF\/AHA\/AATS\/ACR\/ASA\/SCA\/SCAI\/SIR\/STS\/SVM GUIDELINES FOR THE DIAGNOSIS AND MANAGEMENT OF PATIENTS WITH THORACIC AORTIC DISEASE REPRESENTATIVE MEMBERS*.,Hiratzka LF,Creager MA,Isselbacher EM,Svensson LG,2014 AHA\/ACC Guideline fo

更新日期：2016-02-16 00:00:00

abstract：BACKGROUND:Adenylyl cyclases (ACs) are a family of effector molecules for G-protein-coupled receptors. The 2 ACs most abundantly expressed in cardiac myocytes are types 5 (AC5) and 6 (AC6), which have 65% amino acid homology. It has been speculated that coexpression of 2 AC types in cardiac myocytes represents redundan...

journal_title：Circulation

authors： Tang T,Gao MH,Lai NC,Firth AL,Takahashi T,Guo T,Yuan JX,Roth DM,Hammond HK

更新日期：2008-01-01 00:00:00

abstract：:To assess the effects on the heart itself of coronary thrombolysis induced with either tissue-type plasminogen activator (t-PA) or streptokinase (SK), we performed positron emission tomography with 11C-palmitate in 19 patients with initial transmural myocardial infarction immediately after admission and again within 4...

journal_title：Circulation

authors： Sobel BE,Geltman EM,Tiefenbrunn AJ,Jaffe AS,Spadaro JJ Jr,Ter-Pogossian MM,Collen D,Ludbrook PA

更新日期：1984-05-01 00:00:00

abstract：BACKGROUND:Chronic orthostatic intolerance (OI) is characterized by symptoms of inadequate cerebral perfusion with standing, in the absence of significant orthostatic hypotension. A heart rate increase of >/=30 bpm is typical. Possible underlying pathophysiologies include hypovolemia, partial dysautonomia, or a primary...

journal_title：Circulation

authors： Jacob G,Shannon JR,Costa F,Furlan R,Biaggioni I,Mosqueda-Garcia R,Robertson RM,Robertson D

更新日期：1999-04-06 00:00:00

abstract：:To evaluate possible occult myocardial disease in 18 patients whose only major manifestation of heart disease was spontaneous ventricular tachycardia or fibrillation, right ventricular endomyocardial biopsies were performed. None of the patients had symptoms of ischemic or congestive heart disease, and at catheterizat...

journal_title：Circulation

authors： Strain JE,Grose RM,Factor SM,Fisher JD

更新日期：1983-12-01 00:00:00

abstract：:The dominance of the coronary arterial system was determined angiographically in 75 adult patients with isolated aortic stenosis with or without insufficiency, 25 adult patients with pure aortic insufficiency, 51 adult patients with combined aortic stenosis and mitral valve disease, and 44 children with bicuspid aorti...

journal_title：Circulation

authors： Higgins CB,Wexler L

更新日期：1975-08-01 00:00:00

abstract：BACKGROUND:The use of bipolar endocardial electrogram characteristics to guide radiofrequency (RF) current catheter ablation of accessory pathways (APs) has been advocated by several investigators. However, the influences of a varying anatomy of the AP and the atrioventricular groove, of different ablative approaches, ...

journal_title：Circulation

authors： Cappato R,Schlüter M,Mont L,Kuck KH

更新日期：1994-08-01 00:00:00