Pulmonary atresia with intact ventricular septum and ventriculocoronary communications: surgical significance.

abstract：BACKGROUND:In this study, we both investigated coronary flow velocity in hypertrophic obstructive cardiomyopathy (HOCM) and tested the hypothesis of differing coronary flow reserve (CFR) of coronary arteries perfusing left ventricular regions with nonuniform myocardial hypertrophy by measuring the relative CFR. METHOD...

journal_title：Circulation

authors： Kyriakidis MK,Dernellis JM,Androulakis AE,Kelepeshis GA,Barbetseas J,Anastasakis AN,Trikas AG,Tentolouris CA,Gialafos JE,Toutouzas PK

更新日期：1997-08-05 00:00:00

abstract：BACKGROUND:Administration of protease inhibitors (PIs) to HIV-infected individuals has been associated with hyperlipidemia. In this study, we characterized the lipoprotein profile in subjects receiving ritonavir, indinavir, or nelfinavir, alone or in combination with saquinavir. METHODS AND RESULTS:Plasma lipoprotein ...

journal_title：Circulation

authors： Périard D,Telenti A,Sudre P,Cheseaux JJ,Halfon P,Reymond MJ,Marcovina SM,Glauser MP,Nicod P,Darioli R,Mooser V

更新日期：1999-08-17 00:00:00

abstract：:From November 1981 to November 1982, intra-aortic balloon pumping (IABP) was used after surgery in eight patients who were from 6 weeks to 6 years old and who weighed from 4.2 to 16.2 kg. In seven patients, specially constructed intra-aortic balloons with 2.5 and 5.0 ml volumes mounted on No. 5F catheters were used. I...

journal_title：Circulation

authors： Veasy LG,Blalock RC,Orth JL,Boucek MM

更新日期：1983-11-01 00:00:00

abstract：BACKGROUND:Red blood cell transfusion can both benefit and harm. To inform decisions about transfusion, we aimed to quantify associations of transfusion with clinical outcomes and cost in patients having cardiac surgery. METHODS AND RESULTS:Clinical, hematology, and blood transfusion databases were linked with the UK ...

journal_title：Circulation

authors： Murphy GJ,Reeves BC,Rogers CA,Rizvi SI,Culliford L,Angelini GD

更新日期：2007-11-27 00:00:00

abstract：BACKGROUND:ACE inhibitors exert both acute and chronic beneficial effects on cardiac function (eg, remodeling, diastolic dysfunction) in experimental studies and in patients. They inhibit the formation of angiotensin II as well as the degradation of endogenous bradykinin. We recently reported that bradykinin induces se...

journal_title：Circulation

authors： Anning PB,Grocott-Mason RM,Lewis MJ,Shah AM

更新日期：1995-11-01 00:00:00

abstract：BACKGROUND:Previous experimental studies have shown that the effect of serotonin on a coronary stenosis depends on whether that stenosis is compliant or fixed. However, the relation between coronary stenosis morphology and the response to serotonin in patients with angina is not known. METHODS AND RESULTS:Using comput...

journal_title：Circulation

authors： Tousoulis D,Davies G,McFadden E,Clarke J,Kaski JC,Maseri A

更新日期：1993-10-01 00:00:00

abstract：:We tested the hypothesis that different subsets of ischemia-induced wall motion disorders are characterized by specific patterns of abnormal regional left ventricular systolic function. Regional contraction was quantitatively assessed from two-dimensional echocardiograms by an automated integrative analysis considerin...

journal_title：Circulation

authors： Zeiher AM,Wollschlaeger H,Bonzel T,Kasper W,Just H

更新日期：1987-10-01 00:00:00

abstract：BACKGROUND:Chronic Chlamydia pneumoniae and Helicobacter pylori infections could be a risk factor for ischemic heart disease (IHD), possibly by increasing fibrinogen levels. The aim of our study was to evaluate changes in fibrinogen level in patients with IHD and H pylori and/or C pneumoniae positivity randomly assigne...

journal_title：Circulation

authors： Torgano G,Cosentini R,Mandelli C,Perondi R,Blasi F,Bertinieri G,Tien TV,Ceriani G,Tarsia P,Arosio C,Ranzi ML

更新日期：1999-03-30 00:00:00

abstract：BACKGROUND:Patients with low-flow, low-gradient aortic stenosis have a poor prognosis with conservative therapy but a high operative mortality if treated surgically. Recently, we proposed a new index of aortic stenosis severity derived from dobutamine stress echocardiography, the projected aortic valve area at a normal...

journal_title：Circulation

authors： Clavel MA,Fuchs C,Burwash IG,Mundigler G,Dumesnil JG,Baumgartner H,Bergler-Klein J,Beanlands RS,Mathieu P,Magne J,Pibarot P

更新日期：2008-09-30 00:00:00

abstract：BACKGROUND:Although echocardiography is commonly performed before coronary artery bypass surgery, there has yet to be a study examining the incremental prognostic value of a complete echocardiogram. METHODS AND RESULTS:Patients undergoing isolated coronary artery bypass surgery at 2 hospitals were divided into derivat...

journal_title：Circulation

authors： Afilalo J,Flynn AW,Shimony A,Rudski LG,Agnihotri AK,Morin JF,Castrillo C,Shahian DM,Picard MH

更新日期：2013-01-22 00:00:00

abstract：:Neuroendocrine activation is known to occur in patients with congestive heart failure, but there is uncertainty as to whether this occurs before or after the presence of overt symptoms. In the Studies of Left Ventricular Dysfunction (SOLVD), a multicenter study of patients with ejection fractions of 35% or less, we co...

journal_title：Circulation

authors： Francis GS,Benedict C,Johnstone DE,Kirlin PC,Nicklas J,Liang CS,Kubo SH,Rudin-Toretsky E,Yusuf S

更新日期：1990-11-01 00:00:00

abstract：:In Phase I of the NHLBI trial of Thrombolysis in Myocardial Infarction (TIMI), 290 patients admitted within 7 hr after onset of acute infarction were randomly assigned to intravenous treatment with either streptokinase (SK) or recombinant tissue-type plasminogen activator (rt-PA). Left ventricular function was measure...

journal_title：Circulation

authors： Sheehan FH,Braunwald E,Canner P,Dodge HT,Gore J,Van Natta P,Passamani ER,Williams DO,Zaret B

更新日期：1987-04-01 00:00:00

abstract：:Fifty patients who presented with angina pectoris were studied to examine the disturbances of regional myocardial perfusion during stress. Each patient underwent 16-point precordial mapping of the ECG during an exercise test, and coronary and left ventricular angiography. Regional myocardial perfusion was assessed usi...

journal_title：Circulation

authors： Selwyn AP,Forse G,Fox K,Jonathan A,Steiner R

更新日期：1981-07-01 00:00:00

abstract：:One hundred eighty-eight patients with acute myocardial infarction were studied prospectively from August 1980 to September 1982. One hundred thirty-six of these patients were entered into a intracoronary streptokinase study after informed consent was obtained. The remaining 52 patients, who either met exclusion crite...

journal_title：Circulation

authors： Smalling RW,Fuentes F,Matthews MW,Freund GC,Hicks CH,Reduto LA,Walker WE,Sterling RP,Gould KL

更新日期：1983-07-01 00:00:00

abstract：:We evaluated the effects of selective activation of H1 receptors on coronary hemodynamics in 16 patients divided into two groups: group A, 11 patients with atypical angina or valvular heart disease and normal coronary arteries, and group B, five patients with spontaneous angina, four of whom had significant (greater t...

journal_title：Circulation

authors： Vigorito C,Poto S,Picotti GB,Triggiani M,Marone G

更新日期：1986-06-01 00:00:00

abstract：BACKGROUND:The growing postnatal human heart maintains electromechanical function while undergoing substantial changes of cellular topology and myocardial architecture. The capacity for growth and remodeling of ventricular myocardium in adaptation to the hemodynamic changes of early infancy later declines. This decline...

journal_title：Circulation

authors： Peters NS,Severs NJ,Rothery SM,Lincoln C,Yacoub MH,Green CR

更新日期：1994-08-01 00:00:00

abstract：:The automatic implantable cardioverter-defibrillator (ICD) is highly effective in reducing sudden death rates in patients with life-threatening ventricular tachyarrhythmias. However, the magnitude of the ability of the ICD to improve overall survival is less certain. Data supporting the contention that the ICD prolong...

journal_title：Circulation

authors： Sweeney MO,Ruskin JN

更新日期：1994-04-01 00:00:00

abstract：BACKGROUND:Creation of a complete bidirectional inferior vena cava-tricuspid annulus isthmus block (CBIB) by radiofrequency catheter ablation is now a well-accepted criterion for prevention of common atrial flutter (AFl) recurrences. However, some patients still complain of palpitations after ablation, and it is not kn...

journal_title：Circulation

authors： Anselme F,Saoudi N,Poty H,Douillet R,Cribier A

更新日期：1999-02-02 00:00:00

abstract：BACKGROUND:Several authors have reported cases in which 201Tl scintigraphy demonstrated perfusion abnormality in the septum of patients with left bundle branch block (LBBB) and normal coronary arteriogram. The mechanism of this abnormality, however, remains to be clarified. METHODS AND RESULTS:To determine whether LBB...

journal_title：Circulation

authors： Ono S,Nohara R,Kambara H,Okuda K,Kawai C

更新日期：1992-03-01 00:00:00

abstract：BACKGROUND:Resetting has been used to characterize reentrant circuits causing clinical tachycardias. METHODS AND RESULTS:To determine the mechanisms of resetting, sustained ventricular tachycardia was induced in dogs with 4-day-old myocardial infarctions by programmed stimulation. Premature stimulation was accomplishe...

journal_title：Circulation

authors： Hanna MS,Coromilas J,Josephson ME,Wit AL,Peters NS

更新日期：2001-02-27 00:00:00

abstract：BACKGROUND:Normal mammalian mitral leaflets have regional heterogeneity of biochemical composition, collagen fiber orientation, and geometric deformation. How leaflet shape and regional geometry are affected in dilated cardiomyopathy is unknown. METHODS AND RESULTS:Nine sheep had 8 radio-opaque markers affixed to the ...

journal_title：Circulation

authors： Timek TA,Lai DT,Dagum P,Liang D,Daughters GT,Ingels NB Jr,Miller DC

更新日期：2006-07-04 00:00:00

abstract：:The concept of plaque stabilization was developed to explain how lipid lowering could decrease adverse coronary events without a substantial reduction in the regression of atherosclerosis. Plaques were stabilized by reducing serum cholesterol leading to several favorable pathobiological changes in the vessel wall of l...

journal_title：Circulation

authors： Ambrose JA,Martinez EE

更新日期：2002-04-23 00:00:00

abstract：BACKGROUND:Ruling out acute myocardial infarction (AMI) on the basis of rapid assays for cardiac markers will allow early triage of patients and cost-effective use of available coronary care facilities. METHODS AND RESULTS:We studied the value of myoglobin, creatine kinase (CK)-MBmass, and troponin T in ruling out an ...

journal_title：Circulation

authors： de Winter RJ,Koster RW,Sturk A,Sanders GT

更新日期：1995-12-15 00:00:00

abstract：:We assessed the reversibility of functional and morphological changes of arterialized vein segments by returning them to the venous circulation. Thirteen dogs underwent right carotid and femoral veno-arterial grafting. After 12 weeks, veno-arterial grafts were removed for contractility (norepinephrine [NE] and 5-hydro...

journal_title：Circulation

authors： Fann JI,Sokoloff MH,Sarris GE,Yun KL,Kosek JC,Miller DC

更新日期：1990-11-01 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:Recent studies suggest that bone morphogenetic protein-2 (BMP-2), a transforming growth factor-beta superfamily member cytokine, plays an important role both in vascular development and pathophysiological processes, including endothelial activation that is likely to contribute to the development of coronary ...

journal_title：Circulation

authors： Csiszar A,Smith KE,Koller A,Kaley G,Edwards JG,Ungvari Z

更新日期：2005-05-10 00:00:00

abstract：BACKGROUND:Polymorphisms of the beta fibrinogen gene have been shown to affect plasma fibrinogen levels and the risk of peripheral arterial disease. We now present the results of a detailed analysis of the beta fibrinogen gene in relation to plasma fibrinogen and to the severity of coronary artery disease (CAD) in pati...

journal_title：Circulation

authors： Behague I,Poirier O,Nicaud V,Evans A,Arveiler D,Luc G,Cambou JP,Scarabin PY,Bara L,Green F,Cambien F

更新日期：1996-02-01 00:00:00

abstract：BACKGROUND:Cardiac effects of hypertension include increased left ventricular (LV) mass and LV hypertrophy, as well as increased left atrial size, a predictor of stroke and atrial fibrillation. Although literature on reduction of LV mass with antihypertensive therapy is extensive, little information is available on eff...

journal_title：Circulation

authors： Gottdiener JS,Reda DJ,Williams DW,Materson BJ,Cushman W,Anderson RJ

更新日期：1998-07-14 00:00:00

abstract：:Heart failure with preserved ejection fraction (HFpEF) is a complex syndrome with an increasingly recognized heterogeneity in pathophysiology. Exercise intolerance is the hallmark of HFpEF and appears to be caused by both cardiac and peripheral abnormalities in the arterial tree and skeletal muscle. Mitochondrial abno...

journal_title：Circulation

authors： Kumar AA,Kelly DP,Chirinos JA

更新日期：2019-03-12 00:00:00

abstract：:Many basic concepts of cardiac output and arterial pressure control have changed considerably in the past few years. In general, each tissue controls its own local resistance and blood flow regardless of the level of arterial pressure; the sum of the local flows then determines the venous return and cardiac output. Ho...

journal_title：Circulation

authors： Guyton AC

更新日期：1981-12-01 00:00:00