Ultrastructure of Hancock porcine valvular heterografts. Pre- and post-implantation changes.

abstract：BACKGROUND:The goal of this intravascular ultrasound investigation was to provide a more detailed morphological analysis of the local biological effects of the implantation of a sirolimus-eluting stent compared with an uncoated stent. METHODS AND RESULTS:In the RAVEL trial, 238 patients with single de novo lesions wer...

journal_title：Circulation

authors： Serruys PW,Degertekin M,Tanabe K,Abizaid A,Sousa JE,Colombo A,Guagliumi G,Wijns W,Lindeboom WK,Ligthart J,de Feyter PJ,Morice MC,RAVEL Study Group.

更新日期：2002-08-13 00:00:00

abstract：BACKGROUND:Venous thromboembolism can be a presenting symptom of cancer, but the association between lower limb arterial thrombosis and cancer is unknown. We therefore examined cancer risk and prognosis of cancer in patients with lower limb arterial thrombosis. METHODS:Using nationwide population-based Danish medical ...

journal_title：Circulation

authors： Sundbøll J,Veres K,Horváth-Puhó E,Adelborg K,Sørensen HT

更新日期：2018-08-14 00:00:00

abstract：BACKGROUND:Clinical detection of transplant rejection by repeated endomyocardial biopsy requires catheterization and entails risks. Recently developed molecular and cellular imaging techniques that visualize macrophage host responses could provide a noninvasive alternative. Yet, which macrophage functions may provide u...

journal_title：Circulation

authors： Christen T,Nahrendorf M,Wildgruber M,Swirski FK,Aikawa E,Waterman P,Shimizu K,Weissleder R,Libby P

更新日期：2009-04-14 00:00:00

abstract：:Although immediate and late changes in coronary stenoses after percutaneous transluminal coronary angioplasty (PTCA) have been reported, most investigators have employed qualitative or semiquantitative techniques to analyze the angiograms. Such data is not optimal because of considerable interobserver variability and ...

journal_title：Circulation

authors： Johnson MR,Brayden GP,Ericksen EE,Collins SM,Skorton DJ,Harrison DG,Marcus ML,White CW

更新日期：1986-03-01 00:00:00

abstract：:The widespread use of exercise testing for the detection of myocardial ischemia in patients suspected of having coronary artery disease led to the detection of ischemic changes in many subjects who subsequently were found to have angiographically normal epicardial vessels--the false positive response. Such a result is...

journal_title：Circulation

authors： Epstein SE,Cannon RO 3rd,Bonow RO

更新日期：1991-05-01 00:00:00

abstract：BACKGROUND:Pregnant women with congenital heart disease (CHD) are susceptible to cardiovascular, obstetric, and offspring complications. In women with CHD, cardiac dysfunction may compromise uteroplacental flow and contribute to the increased incidence of obstetric and offspring events. METHODS AND RESULTS:We performe...

journal_title：Circulation

authors： Pieper PG,Balci A,Aarnoudse JG,Kampman MA,Sollie KM,Groen H,Mulder BJ,Oudijk MA,Roos-Hesselink JW,Cornette J,van Dijk AP,Spaanderman ME,Drenthen W,van Veldhuisen DJ,ZAHARA II investigators.

更新日期：2013-12-03 00:00:00

abstract：BACKGROUND:Sudden cardiac death (SCD) is a major cause of mortality in adults with congenital heart disease (CHD). The aim of this study was to determine the adult CHD population at risk of SCD and the clinical parameters associated with SCD. METHODS AND RESULTS:We performed a multicenter case-control study. Patients ...

journal_title：Circulation

authors： Koyak Z,Harris L,de Groot JR,Silversides CK,Oechslin EN,Bouma BJ,Budts W,Zwinderman AH,Van Gelder IC,Mulder BJ

更新日期：2012-10-16 00:00:00

abstract：BACKGROUND:Several methods exist by which to assess type A behavior (TAB). Although the videotaped clinical interview is regarded as the "gold standard," self-report measures have also proved useful in assessing TAB in large population studies. The purpose of this study was to examine prospectively the relationship of ...

journal_title：Circulation

authors： Kawachi I,Sparrow D,Kubzansky LD,Spiro A 3rd,Vokonas PS,Weiss ST

更新日期：1998-08-04 00:00:00

abstract：BACKGROUND:Since myocardial blood flow changes dynamically after reperfusion and since both hyperemia and impairment in microvascular function exist within the acutely reperfused bed, we sought to investigate the role of myocardial contrast echocardiography (MCE) in (1) defining the temporal variability in perfusion pa...

journal_title：Circulation

authors： Villanueva FS,Glasheen WP,Sklenar J,Kaul S

更新日期：1993-12-01 00:00:00

abstract：:Echocardiography and Doppler ultrasound are useful in evaluating a variety of pathological conditions affecting the pericardium. Cardiac tamponade results in right atrial collapse and right ventricular diastolic collapse detectable by echocardiography. These echocardiographic signs have a high degree of sensitivity an...

journal_title：Circulation

authors： Chandraratna PA

更新日期：1991-09-01 00:00:00

abstract：BACKGROUND:Serum bilirubin is an endogenous antioxidant that is routinely measured before a statin is prescribed primarily to assess liver function, but the association with cardiovascular disease (CVD) in this population has not been explored. METHOD AND RESULTS:We identified patients from a United Kingdom primary ca...

journal_title：Circulation

authors： Horsfall LJ,Nazareth I,Petersen I

更新日期：2012-11-27 00:00:00

abstract：BACKGROUND:Older coronary patients are at high risk of cardiac disability. Exercise conditioning programs have been demonstrated to improve functional capacity, particularly in younger coronary patients. In this study, the effects of aerobic conditioning on submaximal and maximal indicators of exercise performance were...

journal_title：Circulation

authors： Ades PA,Waldmann ML,Poehlman ET,Gray P,Horton ED,Horton ES,LeWinter MM

更新日期：1993-08-01 00:00:00

abstract：BACKGROUND:In myocardial cells, relaxation is governed primarily by the sarcoplasmic reticulum (SR) Ca(2+)-ATPase transporting enzyme, which regulates Ca2+ sequestration into the SR. Human and experimental cardiomyopathies are associated with reduced SR Ca(2+)-ATPase activity. METHODS AND RESULTS:To modify intracellul...

journal_title：Circulation

authors： Hajjar RJ,Kang JX,Gwathmey JK,Rosenzweig A

更新日期：1997-01-21 00:00:00

abstract：BACKGROUND:Coronary artery disease is the major cause of late cardiac allograft failure. However, few data exist regarding the natural history of changes in intimal and external elastic membrane (EEM) areas after heart transplantation. METHODS AND RESULTS:In 38 transplant recipients, serial intravascular ultrasound ex...

journal_title：Circulation

authors： Tsutsui H,Ziada KM,Schoenhagen P,Iyisoy A,Magyar WA,Crowe TD,Klingensmith JD,Vince DG,Rincon G,Hobbs RE,Yamagishi M,Nissen SE,Tuzcu EM

更新日期：2001-08-07 00:00:00

abstract：BACKGROUND:Cardiac mechanical restitution and relaxation restitution are thought to be physiological correlates of the recovery kinetics of Ca2+ release mechanisms and sequestration capacity of the sarcoplasmic reticulum (SR). Since congestive heart failure is characterized by abnormal intracellular Ca2+ handling, we s...

journal_title：Circulation

authors： Prabhu SD,Freeman GL

更新日期：1995-01-01 00:00:00

abstract：BACKGROUND:Single-site ventricular pacing in patients with heart failure, atrial fibrillation, and severe atrioventricular (AV) nodal block risks the generation of discoordinate contraction. Whether altering the site of stimulation can offset this detrimental effect and what role sequential right ventricular-left ventr...

journal_title：Circulation

authors： Hay I,Melenovsky V,Fetics BJ,Judge DP,Kramer A,Spinelli J,Reister C,Kass DA,Berger RD

更新日期：2004-11-30 00:00:00

abstract：:The healthcare system is undergoing a transition from paying for volume to paying for value. Clinicians, as well as public and private payers, are beginning to implement alternative delivery and payment models, such as the patient-centered medical home, accountable care organizations, and bundled payment arrangements....

journal_title：Circulation

authors： Bufalino VJ,Berkowitz SA,Gardner TJ,Piña IL,Konig M,AHA Expert Panel on Payment and Delivery System Reform.

更新日期：2017-08-15 00:00:00

abstract：BACKGROUND:Prospective data relating previous exposure to cytomegalovirus (CMV) to the risk of cardiac mortality are controversial. We investigated the effect of previous exposure to CMV infection on the risk of future cardiac disease-related death in relation to an underlying inflammatory response. METHODS AND RESULT...

journal_title：Circulation

authors： Blankenberg S,Rupprecht HJ,Bickel C,Espinola-Klein C,Rippin G,Hafner G,Ossendorf M,Steinhagen K,Meyer J

更新日期：2001-06-19 00:00:00

abstract：:Cardiac allograft vasculopathy (CAV) remains a troublesome long-term complication of heart transplantation. It is manifested by a unique and unusually accelerated form of coronary disease affecting both intramural and epicardial coronary arteries and veins.CAV is characterized by vascular injury induced by a variety o...

journal_title：Circulation

authors： Weis M,von Scheidt W

更新日期：1997-09-16 00:00:00

abstract：BACKGROUND:The coronary artery collateral circulation may be beneficial in protecting against myocardial ischemia and necrosis. However, there is a tremendous interindividual variability in the degree of new collateral formation in patients with coronary artery disease. The basis for this interindividual heterogeneity ...

journal_title：Circulation

authors： Schultz A,Lavie L,Hochberg I,Beyar R,Stone T,Skorecki K,Lavie P,Roguin A,Levy AP

更新日期：1999-08-03 00:00:00

abstract：BACKGROUND:Familial hypercholesterolemia (FH), an autosomal codominant disease, is characterized by high levels of LDL cholesterol and a high incidence of coronary artery disease (CAD). To date, genetic heterogeneity has hindered the proper assessment of the relation between risk factors and CAD in FH patients. METHOD...

journal_title：Circulation

authors： Ferrières J,Lambert J,Lussier-Cacan S,Davignon J

更新日期：1995-08-01 00:00:00

abstract：BACKGROUND:In vitro experiments have shown that holmium laser energy can effectively ablate even calcified plaque in human arterial vessels. Because high-energy densities from holmium lasers can easily be transmitted through quartz fibers, this solid-state laser has been suggested as an alternative intraluminal treatme...

journal_title：Circulation

authors： Hassenstein S,Hanke H,Kamenz J,Oberhoff M,Hanke S,Riessen R,Haase KK,Betz E,Karsch KR

更新日期：1992-11-01 00:00:00

abstract：BACKGROUND:Although early trials indicate the treatment of restenosis with radiation therapy is safe and effective, the long-term impact of this new technology has been questioned. The possibility of late untoward consequences, such as aneurysm formation, perforation, and accelerated vascular disease, is of significant...

journal_title：Circulation

authors： Teirstein PS,Massullo V,Jani S,Russo RJ,Cloutier DA,Schatz RA,Guarneri EM,Steuterman S,Sirkin K,Norman S,Tripuraneni P

更新日期：1999-01-19 00:00:00

abstract：:Total body surface maps from 15 subjects with left bundle branch block and normal axis (LBBB-NA) and 10 subjects with left bundle branch block and left axis (LBBB-LA) were analyzed and compared with maps from normal subjects. In 19 of the 25 subjects with LBBB, the timing of early upper sternal positivity was similar ...

journal_title：Circulation

authors： Sohi GS,Flowers NC,Horan LG,Sridharan MR,Johnson JC

更新日期：1983-03-01 00:00:00

abstract：BACKGROUND:Intimal thickenings of the coronary arteries of newborn children are composed mainly of smooth muscle cell proliferations. To investigate whether thickening of the intima in infants is associated with a family history of coronary artery disease (CAD), we studied the relation of coronary death of grandparents...

journal_title：Circulation

authors： Kaprio J,Norio R,Pesonen E,Sarna S

更新日期：1993-06-01 00:00:00

abstract：BACKGROUND:In diabetic patients in the Evaluation of Platelet IIb/IIIa Inhibitor for Stenting (EPISTENT) trial, abciximab reduced target vessel revascularization by approximately 50% compared with placebo. Whether this is a result of a lower restenosis rate caused by inhibition of intimal hyperplasia remains to be defi...

journal_title：Circulation

authors： Chaves AJ,Sousa AG,Mattos LA,Abizaid A,Staico R,Feres F,Centemero M,Tanajura LF,Abizaid A,Pinto I,Maldonado G,Seixas A,Costa MA,Paes A,Mintz GS,Sousa JE

更新日期：2004-02-24 00:00:00

abstract：:The aim of this policy statement is to provide a comprehensive review of the scientific evidence evaluating the use of telemedicine in cardiovascular and stroke care and to provide consensus policy suggestions. We evaluate the effectiveness of telehealth in advancing healthcare quality, identify legal and regulatory b...

journal_title：Circulation

authors： Schwamm LH,Chumbler N,Brown E,Fonarow GC,Berube D,Nystrom K,Suter R,Zavala M,Polsky D,Radhakrishnan K,Lacktman N,Horton K,Malcarney MB,Halamka J,Tiner AC,American Heart Association Advocacy Coordinating Committee.

更新日期：2017-02-14 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:Patients with Brugada syndrome who were resuscitated from an episode of ventricular fibrillation are at high risk for recurrent sudden death. There is general agreement about the therapeutic strategy for these patients. Conversely, the prognosis and approach in patients with a diagnostic ECG but without a pr...

journal_title：Circulation

authors： Brugada J,Brugada R,Brugada P

更新日期：2003-12-23 00:00:00

abstract：BACKGROUND:Angiogenesis is a critical feature of plaque development in atherosclerosis and might play a key role in both the initiation and later rupture of plaques that lead to myocardial infarction and stroke. The precursory molecular or cellular events that initiate plaque growth and that ultimately contribute to pl...

journal_title：Circulation

authors： Winter PM,Morawski AM,Caruthers SD,Fuhrhop RW,Zhang H,Williams TA,Allen JS,Lacy EK,Robertson JD,Lanza GM,Wickline SA

更新日期：2003-11-04 00:00:00