Echocardiographic assessment of left ventricular function in aortic valve disease.

abstract：:This study describes the efficacy of the right gastroepiploic artery (GEA) as graft material for coronary artery bypass grafting (CABG) as assessed by exercise thallium 201 myocardial scintigraphy in eight patients (age, 59.4 +/- 9.35 years [mean +/- SD]) who underwent CABG with the GEA graft in the past 2 years. Plan...

journal_title：Circulation

authors： Kusukawa J,Hirota Y,Kawamura K,Suma H,Takeuchi A,Adachi I,Akagi H

更新日期：1989-09-01 00:00:00

abstract：BACKGROUND:Congenital long-QT syndrome (LQTS) is a primary arrhythmogenic syndrome stemming from perturbed cardiac repolarization. LQTS, which affects approximately 1 in 3000 persons, is 1 of the most common causes of autopsy-negative sudden death in the young. Since the sentinel discovery of cardiac channel gene mutat...

journal_title：Circulation

authors： Vatta M,Ackerman MJ,Ye B,Makielski JC,Ughanze EE,Taylor EW,Tester DJ,Balijepalli RC,Foell JD,Li Z,Kamp TJ,Towbin JA

更新日期：2006-11-14 00:00:00

abstract：:The echocardiograms of 46 patients with aortic insufficiency which manifested typical high frequency vibrations of the anterior mitral valve leaflet were reviewed. All patients had overt clinical evidence of aortic insufficiency which was confirmed by angiography in 17 cases. In 17 cases (eight of whom underwent cat...

journal_title：Circulation

authors： Cope GD,Kisslo JA,Johnson ML,Myers S

更新日期：1975-04-01 00:00:00

abstract：BACKGROUND:Coronary flow reserve (CFR), an integrated measure of focal, diffuse, and small-vessel coronary artery disease (CAD), identifies patients at risk for cardiac death. We sought to determine the association between CFR, angiographic CAD, and cardiovascular outcomes. METHODS AND RESULTS:Consecutive patients (n=...

journal_title：Circulation

authors： Taqueti VR,Hachamovitch R,Murthy VL,Naya M,Foster CR,Hainer J,Dorbala S,Blankstein R,Di Carli MF

更新日期：2015-01-06 00:00:00

abstract：BACKGROUND:The Na+-H+ exchanger figures prominently in cardiac ischemia-reperfusion injury. Several experimental and clinical studies have demonstrated a cardioprotective effect of Na+-H+ exchanger inhibition; however, the precise mechanisms have not been established. METHODS AND RESULTS:We examined the effects of car...

journal_title：Circulation

authors： Teshima Y,Akao M,Jones SP,Marbán E

更新日期：2003-11-04 00:00:00

abstract：BACKGROUND:In patients with acute minor ischemic stroke or high-risk transient ischemic attack enrolled in the POINT trial (Platelet-Oriented Inhibition in New TIA and Minor Ischemic Stroke [POINT] Trial), the combination of clopidogrel and aspirin for 90 days reduced major ischemic events but increased major hemorrhag...

journal_title：Circulation

authors： Johnston SC,Elm JJ,Easton JD,Farrant M,Barsan WG,Kim AS,Lindblad AS,Palesch YY,Zurita KG,Albers GW,Cucchiara BL,Kleindorfer DO,Lutsep HL,Pearson C,Sethi P,Vora N,POINT and Neurological Emergencies Treatment Trials Network

更新日期：2019-08-20 00:00:00

abstract：BACKGROUND:Myocardial salvage is most likely to occur when thrombolytic therapy is administered within 4 to 6 hours of the onset of symptoms of myocardial infarction. The impact of delays within this early time period on final myocardial infarct size are unknown. The purpose of this study was to quantitate the relation...

journal_title：Circulation

authors： Raitt MH,Maynard C,Wagner GS,Cerqueira MD,Selvester RH,Weaver WD

更新日期：1996-01-01 00:00:00

abstract：:Isovolumic relaxation time (IVRT) and events of early transmitral flow measured by Doppler echocardiography were validated against the time constant of left ventricular relaxation (tau) in open-chest dogs. During increased inotropy (by isoproterenol infusion) at constant preload, enhancement of relaxation was indicate...

journal_title：Circulation

authors： Myreng Y,Smiseth OA

更新日期：1990-01-01 00:00:00

abstract：:Patients with systemic morphological right ventricles (RVs), including congenitally corrected transposition of the great arteries and dextro-transposition of the great arteries with a Mustard or Senning atrial baffle repair, have a high likelihood of developing systemic ventricular dysfunction. Unfortunately, there ar...

journal_title：Circulation

authors： Zaragoza-Macias E,Zaidi AN,Dendukuri N,Marelli A

更新日期：2019-04-02 00:00:00

abstract：:Cardiovascular disease is the number one cause of death for women in the United States. Of the 1.3 million active duty service members, 16.3% are currently women, and the number of women veterans is expected to increase. Women veterans have higher rates of cardiovascular disease than civilian women and present a uniqu...

journal_title：Circulation

authors： Han JK,Yano EM,Watson KE,Ebrahimi R

更新日期：2019-02-19 00:00:00

abstract：BACKGROUND:From animal studies it emerged that nitric oxide is important for the modulation of CO2-mediated cerebral blood flow (CBF chemoregulation) but not for the pressor-dependent mechanism (mechanoregulation). This hypothesis was tested in 18 healthy subjects. METHODS AND RESULTS:Peak velocity (PV), diastolic vel...

journal_title：Circulation

authors： Lavi S,Egbarya R,Lavi R,Jacob G

更新日期：2003-04-15 00:00:00

abstract：BACKGROUND:Degeneration of xenografts or homografts is a major cause for reoperation in young patients after pulmonary valve replacement. We present the early results of fresh decellularized pulmonary homografts (DPH) implantation compared with glutaraldehyde-fixed bovine jugular vein (BJV) and cryopreserved homografts...

journal_title：Circulation

authors： Cebotari S,Tudorache I,Ciubotaru A,Boethig D,Sarikouch S,Goerler A,Lichtenberg A,Cheptanaru E,Barnaciuc S,Cazacu A,Maliga O,Repin O,Maniuc L,Breymann T,Haverich A

更新日期：2011-09-13 00:00:00

abstract：BACKGROUND:Several centers favor replacing a diseased native heart valve with a tissue rather than a mechanical prosthesis, even in younger adult patients. However, long-term data supporting this approach are lacking. We examined the survival implications of selecting a tissue versus a mechanical prosthesis at initial ...

journal_title：Circulation

authors： Ruel M,Chan V,Bédard P,Kulik A,Ressler L,Lam BK,Rubens FD,Goldstein W,Hendry PJ,Masters RG,Mesana TG

更新日期：2007-09-11 00:00:00

abstract：:A histologic study was performed on 22 specimens of pulmonary atresia with ventricular septal defect to 1) ascertain the existence of the main pulmonary artery; 2) distinguish the ductus arteriosus from the systemic collateral arteries (SCA); 3) establish the nutritive or functional nature of collateral circulation; a...

journal_title：Circulation

authors： Thiene G,Frescura C,Bini RM,Valente M,Gallucci V

更新日期：1979-11-01 00:00:00

abstract：BACKGROUND:Selection of treatment in vasovagal syndrome should be guided by the mechanism of symptoms. This study determined whether a simple drug test may assess one mechanism. METHODS AND RESULTS:To identify patients at risk of severe cardioinhibitory response of vagal origin, we infused 20 mg ATP into 316 patients ...

journal_title：Circulation

authors： Flammang D,Church T,Waynberger M,Chassing A,Antiel M

更新日期：1997-08-19 00:00:00

abstract：:The effect of the ouabain-quinidine interaction was examined in 10 conscious dogs. Left ventricular (LV) pressure, LV dP/dt, LV diameter and left atrial (LA) diameter were measured with high-fidelity micromanometers and sonomicrometer crystals. Ouabain, 0.025 mg/kg, significantly (p less than 0.05) increased LV dP/dt,...

journal_title：Circulation

authors： Goldman S,Hager WD,Olajos M,Perrier D,Mayersohn M

更新日期：1983-05-01 00:00:00

abstract：BACKGROUND:Recognition of rates and causes of hard, patient-centered outcomes of death and cerebrovascular events (CVEs) after heart rhythm disorder management (HRDM) procedures is an essential step for the development of quality improvement programs in electrophysiology laboratories. Our primary aim was to assess and ...

journal_title：Circulation

authors： Lee JZ,Ling J,Diehl NN,Hodge DO,Padmanabhan D,Killu AM,Madhavan M,Noseworthy PA,Kapa S,McLeod CJ,Cha YM,Deshmukh AJ,Srivathsan K,Kusumoto FM,Shen WK,Friedman PA,Munger TM,Asirvatham SJ,Packer DL,Mulpuru SK

更新日期：2018-01-02 00:00:00

abstract：:Between January 1, 1970, and December 31, 1974, 2981 patients underwent coronary arteriography. Twelve acute coronary dissections or embolizations occurred, an incidence of 0.4%. The incidences of acute occlusions for the Sones and Judkins techniques were 0.19% (4/2077 studies) and 0.88% (8/940), respectively. No inst...

journal_title：Circulation

authors： Guss SB,Zir LM,Garrison HB,Daggett WM,Block PC,Dinsmore RE

更新日期：1975-12-01 00:00:00

abstract：BACKGROUND:Exercise echocardiography (digital cine-loop technique) and 201Tl single-photon emission computed tomography (SPECT) were performed simultaneously in 292 patients being evaluated for coronary artery disease. METHODS AND RESULTS:Pretreadmill and posttreadmill echocardiographic images of diagnostic quality we...

journal_title：Circulation

authors： Quiñones MA,Verani MS,Haichin RM,Mahmarian JJ,Suarez J,Zoghbi WA

更新日期：1992-03-01 00:00:00

abstract：:Contracture and collapse often complicate dissection and excision of blood vessels for grafting. Subsequent forceful redilatation and leak checking with cold saline almost always lead to partial or total denudation of endothelium, which increases the risk of early occlusion by thrombi or late occlusion by fibrocellula...

journal_title：Circulation

authors： Haudenschild C,Gould KE,Quist WC,LoGerfo FW

更新日期：1981-08-01 00:00:00

abstract：BACKGROUND:Cardiac resynchronization therapy for heart failure with left bundle branch block reduces left ventricular (LV) conduction delay, contraction asynchrony, and LV end-systolic volume ("reverse remodeling"). Up to one third of patients do not improve, and the electric requirements for reverse remodeling are unc...

journal_title：Circulation

authors： Sweeney MO,van Bommel RJ,Schalij MJ,Borleffs CJ,Hellkamp AS,Bax JJ

更新日期：2010-02-09 00:00:00

abstract：BACKGROUND:Depletion of L-arginine (L-arg), the substrate for nitric oxide (NO) synthesis, could be one of the mechanisms responsible for the reduced production of NO and decreased coronary flow (CF) during reperfusion. This, in turn, may adversely affect mechanical function. We aimed to study the benefits of exogenous...

journal_title：Circulation

authors： Amrani M,Gray CC,Smolenski RT,Goodwin AT,London A,Yacoub MH

更新日期：1997-11-04 00:00:00

abstract：BACKGROUND:Swimming-induced pulmonary edema (SIPE) occurs during swimming or scuba diving, often in young individuals with no predisposing conditions, and its pathophysiology is poorly understood. This study tested the hypothesis that pulmonary artery and pulmonary artery wedge pressures are higher in SIPE-susceptible ...

journal_title：Circulation

authors： Moon RE,Martina SD,Peacher DF,Potter JF,Wester TE,Cherry AD,Natoli MJ,Otteni CE,Kernagis DN,White WD,Freiberger JJ

更新日期：2016-03-08 00:00:00

abstract：BACKGROUND:Women have a higher operative mortality (OM) after coronary artery bypass graft (CABG) surgery than men. Suggested contributing factors have included women's increased age, advanced disease, comorbidities, and smaller body surface area (BSA). It is unclear whether women's increased risk factors fully account...

journal_title：Circulation

authors： Blankstein R,Ward RP,Arnsdorf M,Jones B,Lou YB,Pine M

更新日期：2005-08-30 00:00:00

abstract：BACKGROUND:Myocardial perfusion reflects the macro- and microvascular coronary circulation. Recent quantitation developments using cardiovascular magnetic resonance perfusion permit automated measurement clinically. We explored the prognostic significance of stress myocardial blood flow (MBF) and myocardial perfusion r...

journal_title：Circulation

authors： Knott KD,Seraphim A,Augusto JB,Xue H,Chacko L,Aung N,Petersen SE,Cooper JA,Manisty C,Bhuva AN,Kotecha T,Bourantas CV,Davies RH,Brown LAE,Plein S,Fontana M,Kellman P,Moon JC

更新日期：2020-04-21 00:00:00

abstract：BACKGROUND:Despite early recanalization of an occluded infarct artery, reperfusion at the level of the microcirculation may remain impaired owing to a process of microvascular reperfusion injury. METHODS AND RESULTS:Microvascular reperfusion injury was studied in 91 patients with acute myocardial infarction (AMI) by e...

journal_title：Circulation

authors： Claeys MJ,Bosmans J,Veenstra L,Jorens P,De RaedtH,Vrints CJ

更新日期：1999-04-20 00:00:00

abstract：BACKGROUND:Although there is a statistically significant association between modestly raised baseline plasma C-reactive protein (CRP) values and future cardiovascular events, the debate is still unsettled in regard to whether CRP plays a causal role in the pathogenesis of atherosclerosis. METHODS AND RESULTS:We genera...

journal_title：Circulation

authors： Koike T,Kitajima S,Yu Y,Nishijima K,Zhang J,Ozaki Y,Morimoto M,Watanabe T,Bhakdi S,Asada Y,Chen YE,Fan J

更新日期：2009-11-24 00:00:00

abstract：BACKGROUND:Unfractionated heparin has been the primary anticoagulant therapy for percutaneous coronary intervention for >20 years. Despite the availability of rapid "point of care" testing, little clinical data defining the optimal level of anticoagulation are available. Furthermore, recent reports have advocated the u...

journal_title：Circulation

authors： Chew DP,Bhatt DL,Lincoff AM,Moliterno DJ,Brener SJ,Wolski KE,Topol EJ

更新日期：2001-02-20 00:00:00

abstract：BACKGROUND:During rest and exercise, patients with heart failure hyperventilate; therefore, the diaphragm can be viewed as undergoing constant moderate-intensity exercise. Accordingly, we hypothesized that heart failure elicits adaptations in the diaphragm similar to those elicited by endurance exercise in the limb mus...

journal_title：Circulation

authors： Tikunov B,Levine S,Mancini D

更新日期：1997-02-18 00:00:00

abstract：BACKGROUND:Long-term ventricular resynchronization therapy improves symptom status. Changes in left ventricular remodeling have not been adequately evaluated. METHODS AND RESULTS:Fifty-three patients with systolic heart failure and bundle-branch block underwent implantation of biventricular stimulation (BVS) devices a...

journal_title：Circulation

authors： Saxon LA,De Marco T,Schafer J,Chatterjee K,Kumar UN,Foster E,VIGOR Congestive Heart Failure Investigators.

更新日期：2002-03-19 00:00:00