Peripartum myocarditis and cardiomyopathy.

abstract：:We evaluated the accuracy of the recently reported technique of estimating intraventricular volume by measurement of intracavitary electrical conductance in six isolated, ejecting, canine left ventricles. Left ventricular volumes were measured directly by a previously validated servosystem that employed an electrocond...

journal_title：Circulation

authors： Burkhoff D,van der Velde E,Kass D,Baan J,Maughan WL,Sagawa K

更新日期：1985-08-01 00:00:00

abstract：:This essay reviews the founding and early history of the Council on Clinical Cardiology of the American Heart Association (AHA), the largest of the AHA's 14 councils. Based on archival research, it stresses the factors that led to the council's formation and shaped its agenda. The council was established in the contex...

journal_title：Circulation

authors： Fye WB

更新日期：1993-03-01 00:00:00

abstract：BACKGROUND:We hypothesized that 1) endogenous adenosine released during ischemia conferred an inherent cardioprotection, and 2) a pretreatment dose of adenosine before ischemia would provide additional protection independent of hemodynamic effects. METHODS AND RESULTS:Thirty-six anesthetized New Zealand White rabbits ...

journal_title：Circulation

authors： Toombs CF,McGee S,Johnston WE,Vinten-Johansen J

更新日期：1992-09-01 00:00:00

abstract：BACKGROUND:Bias in studies of preventive medications can occur when healthier patients are more likely to initiate and adhere to therapy than less healthy patients. We sought evidence of this bias by examining associations between statin exposure and various outcomes that should not be causally affected by statin expos...

journal_title：Circulation

authors： Dormuth CR,Patrick AR,Shrank WH,Wright JM,Glynn RJ,Sutherland J,Brookhart MA

更新日期：2009-04-21 00:00:00

abstract：:Between 1973 and 1983, 90 patients with tricuspid atresia underwent the Fontan operation at the Mayo Clinic. Operative mortality was 12% overall and decreased to 7% during the second 5 year period. At postoperative follow-up of 65 patients (1 to 10 years, mean 4), 50 (86%) of 58 present survivors were in excellent con...

journal_title：Circulation

authors： Mair DD,Rice MJ,Hagler DJ,Puga FJ,McGoon DC,Danielson GK

更新日期：1985-09-01 00:00:00

abstract：BACKGROUND:Recently, it was reported that the degree of microvascular injury and left ventricular functional recovery during the chronic period can be predicted after treatment of the infarct-related artery based on the coronary flow velocity (CFV) pattern assessed using a Doppler guidewire. The aim of this prospective...

journal_title：Circulation

authors： Yamamuro A,Akasaka T,Tamita K,Yamabe K,Katayama M,Takagi T,Morioka S

更新日期：2002-12-10 00:00:00

abstract：BACKGROUND:Vascular inflammation and subsequent matrix degradation play an important role in the development of atherosclerosis. We previously reported that adiponectin, an adipose-specific plasma protein, accumulated to the injured artery and attenuated vascular inflammatory response. Clinically, high plasma adiponect...

journal_title：Circulation

authors： Kumada M,Kihara S,Ouchi N,Kobayashi H,Okamoto Y,Ohashi K,Maeda K,Nagaretani H,Kishida K,Maeda N,Nagasawa A,Funahashi T,Matsuzawa Y

更新日期：2004-05-04 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：:The electrophysiologic effects of amiodarone were examined in 13 dogs that received 30 g amiodarone orally during 3 weeks and compared with 13 control dogs that did not receive amiodarone. Longitudinal and transverse epicardial conduction velocities were estimated with a square array of 64 closely spaced electrodes an...

journal_title：Circulation

authors： Anderson KP,Walker R,Dustman T,Lux RL,Ershler PR,Kates RE,Urie PM

更新日期：1989-04-01 00:00:00

abstract：:Eleven consecutive patients with idiopathic dilated cardiomyopathy and spontaneous, sustained ventricular tachycardia (VT) of uniform morphology underwent programmed ventricular stimulation and serial antiarrhythmic drug testing. The mean ejection fraction was 30 +/- 6.4%. Sustained VT was induced by programmed electr...

journal_title：Circulation

authors： Poll DS,Marchlinski FE,Buxton AE,Doherty JU,Waxman HL,Josephson ME

更新日期：1984-09-01 00:00:00

abstract：:The purpose of this study was to develop a clinically applicable system for quantifying premortem myocardial area at risk. Coronary artery occlusion was performed in 18 closed-chest dogs (11 left anterior descending and seven circumflex). 99mTc (15 mCi)-labeled macroaggregated albumin was then injected through an angi...

journal_title：Circulation

authors： Feiring AJ,Bruch P,Husayni TS,Kirchner PT,Marcus ML

更新日期：1986-03-01 00:00:00

abstract：BACKGROUND:Inhomogeneity of dose distribution and anatomic aspects of the atherosclerotic plaque may influence the outcome of irradiated lesions after balloon angioplasty (BA). We evaluated the influence of delivered dose and morphological characteristics of coronary stenoses treated with beta-radiation after BA. METH...

journal_title：Circulation

authors： Sabaté M,Marijnissen JP,Carlier SG,Kay IP,van der Giessen WJ,Coen VL,Ligthart JM,Boersma E,Costa MA,Levendag PC,Serruys PW

更新日期：2000-05-30 00:00:00

abstract：BACKGROUND:Heart rate (HR) variability is a marker of tonic cardiac autonomic activity and contributes in assessing risk for sudden death after myocardial infarction. Recent clinical observations have indicated that attenuation of HR variability, which occurs after myocardial infarction, may be transient. This study ad...

journal_title：Circulation

authors： Adamson PB,Huang MH,Vanoli E,Foreman RD,Schwartz PJ,Hull SS Jr

更新日期：1994-08-01 00:00:00

abstract：BACKGROUND:Cardiac resynchronization therapy has emerged as an important therapy for advanced systolic heart failure. Among available cardiac resynchronization therapy pacing modes that restore ventricular synchrony, it is uncertain whether simultaneous biventricular (BiV), sequential BiV, or left ventricular (LV) paci...

journal_title：Circulation

authors： Rao RK,Kumar UN,Schafer J,Viloria E,De Lurgio D,Foster E

更新日期：2007-04-24 00:00:00

abstract：BACKGROUND:Dispatcher-assisted cardiopulmonary resuscitation (CPR) instructions can increase bystander CPR and thereby increase the rate of survival from cardiac arrest. The risk of bystander CPR for patients not in arrest is uncertain and has implications for how assertive dispatch is in instructing CPR. We determined...

journal_title：Circulation

authors： White L,Rogers J,Bloomingdale M,Fahrenbruch C,Culley L,Subido C,Eisenberg M,Rea T

更新日期：2010-01-05 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:Heart valve surgery has an associated in-hospital mortality rate of 4% to 8%. This study aims to develop a simple risk model to predict the risk of in-hospital mortality for patients undergoing heart valve surgery to provide information to patients and clinicians and to facilitate institutional comparisons. ...

journal_title：Circulation

authors： Ambler G,Omar RZ,Royston P,Kinsman R,Keogh BE,Taylor KM

更新日期：2005-07-12 00:00:00

abstract：BACKGROUND:Although molecular biological studies suggest a pathogenic link between enterovirus infection and dilated cardiomyopathy (DCM), the frequency of detection of enteroviral RNA is not consistently high in myocardial tissue from patients with DCM. A recent study has suggested that hepatitis C virus (HCV) may als...

journal_title：Circulation

authors： Okabe M,Fukuda K,Arakawa K,Kikuchi M

更新日期：1997-07-01 00:00:00

abstract：BACKGROUND:The management of asymptomatic severe mitral regurgitation remains controversial. The aim of this study was to evaluate the outcome of a watchful waiting strategy in which patients are referred to surgery when symptoms occur or when asymptomatic patients develop left ventricular (LV) enlargement, LV dysfunct...

journal_title：Circulation

authors： Rosenhek R,Rader F,Klaar U,Gabriel H,Krejc M,Kalbeck D,Schemper M,Maurer G,Baumgartner H

更新日期：2006-05-09 00:00:00

abstract：BACKGROUND:Television viewing time, the predominant leisure-time sedentary behavior, is associated with biomarkers of cardiometabolic risk, but its relationship with mortality has not been studied. We examined the associations of prolonged television viewing time with all-cause, cardiovascular disease (CVD), cancer, an...

journal_title：Circulation

authors： Dunstan DW,Barr EL,Healy GN,Salmon J,Shaw JE,Balkau B,Magliano DJ,Cameron AJ,Zimmet PZ,Owen N

更新日期：2010-01-26 00:00:00

abstract：:Although the postoperative hemodynamic and echocardiographic features of idiopathic hypertrophic subaortic stenosis have been studied, the expected consistent postoperative thinning of the interventricular septum has not been reported. In this study, the short-term effects of septal myectomy were evaluated in 16 patie...

journal_title：Circulation

authors： Schapira JN,Stemple DR,Martin RP,Rakowski H,Stinson EB,Popp RL

更新日期：1978-11-01 00:00:00

abstract：:The ameliorative effect of antiplatelet therapy on atherogenesis of vein grafts was assessed in autologous cephalic veins grafted into femoral arteries of 16 normolipemic and 11 hyperlipemic stump-tailed macaque monkeys. Before grafting, one half of each vein was distended at high pressure (700 mm Hg) and the other ha...

journal_title：Circulation

authors： Bonchek LI,Boerboom LE,Olinger GN,Pepper JR,Munns J,Hutchinson L,Kissebah AH

更新日期：1982-08-01 00:00:00

abstract：BACKGROUND:31P metabolite measurements in the human heart by magnetic resonance spectroscopy (MRS) have been reported previously. By use of a method in which metabolite content was quantified with reference to a standard located outside the chest, it has become possible to measure the content of phosphocreatine (PCr) a...

journal_title：Circulation

authors： Yabe T,Mitsunami K,Inubushi T,Kinoshita M

更新日期：1995-07-01 00:00:00

abstract：BACKGROUND:MRI of specific components in atherosclerotic plaque may provide information on plaque stability and its potential to rupture. We evaluated gadofluorine in atherosclerotic rabbits using a new MR sequence that allows plaque detection within 1 hour after injection and assessed enhancement in lipid-rich and non...

journal_title：Circulation

authors： Sirol M,Itskovich VV,Mani V,Aguinaldo JG,Fallon JT,Misselwitz B,Weinmann HJ,Fuster V,Toussaint JF,Fayad ZA

更新日期：2004-06-15 00:00:00

abstract：:The effect of potassium ion (K+) depletion on postmyocardial infarction ventricular arrhythmias was investigated in 32 dogs: 12 control animals, 10 animals that ate a diet extremely low in K+ for 15 days, and 10 others that, in addition to dietary K+ deprivation, received 50 mg of hydrochlorothiazide four times. The e...

journal_title：Circulation

authors： Garan H,McGovern BA,Canzanello VJ,McCauley J,Bodvarsson M,Harrington JT,Madias NE,Newell JB,Ruskin JN

更新日期：1988-03-01 00:00:00

abstract：:With the advent of reliable prosthetic valves, the number of aortic valvuloplastic procedures performed in adults has decreased significantly. This is in contradistinction to patients with congenital aortic stenosis, in whom aortic valvuloplasty remains the primary approach. Although only a 25% to 50% incidence of lon...

journal_title：Circulation

authors： Mindich BP,Guarino T,Goldman ME

更新日期：1986-09-01 00:00:00

abstract：:Three patients developed late pulmonary vein obstruction (PVO) following Mustard's operation for transposition of the great arteries. In all three the absence of PVO had been documented by an earlier postoperative cardiac catheterization. At reoperation shrinkage and kinking of the dacron baffle was evident. After Mus...

journal_title：Circulation

authors： Driscoll DJ,Nihill MR,Vargo TA,Mullins CE,McNamara DG

更新日期：1977-03-01 00:00:00

abstract：BACKGROUND:Abnormalities of arterial pulse and limb growth after retrograde femoral arterial catheterization have been well documented. However, the magnitude of such complications after transfemoral artery balloon dilatation has not been thoroughly investigated. This study sought to evaluate the prevalence of these ab...

journal_title：Circulation

authors： Lee HY,Reddy SC,Rao PS

更新日期：1997-02-18 00:00:00

abstract：:Four revolutions are transforming the cardiology of our day. The first is a social revolution. It has resulted in plummeting esteem for the medical profession reflecting disenchantment coupled with the rapid emergence of the recognition that health care is a right rather than a privilege. The second revolution, interv...

journal_title：Circulation

authors： Sobel BE

更新日期：1993-06-01 00:00:00

abstract：BACKGROUND:The pulmonary autograft procedure (Ross) is now considered the gold standard for aortic valve replacement. One of its advantages is the freedom from macroemboli without anticoagulation. Whether this holds true for circulating microemboli, detectable as high-intensity transient Doppler signals (HITS), has not...

journal_title：Circulation

authors： Nötzold A,Droste DW,Hagedorn G,Berndt S,Kaps M,Graf B,Sievers HH

更新日期：1997-09-16 00:00:00