Late complications in patients with Björk-Shiley and St. Jude Medical heart valve replacement.

abstract：BACKGROUND:In patients with acute coronary syndromes and planned percutaneous coronary intervention, the Trial to Assess Improvement in Therapeutic Outcomes by Optimizing Platelet Inhibition With Prasugrel-Thrombolysis in Myocardial Infarction 38 (TRITON-TIMI 38) demonstrated that treatment with prasugrel versus clopid...

journal_title：Circulation

authors： Mahoney EM,Wang K,Arnold SV,Proskorovsky I,Wiviott S,Antman E,Braunwald E,Cohen DJ

更新日期：2010-01-05 00:00:00

abstract：BACKGROUND:The pathophysiology of hypertension in the immediate postpartum period is unclear. METHODS AND RESULTS:We studied 988 consecutive women admitted to a tertiary medical center for cesarean section of a singleton pregnancy. The angiogenic factors soluble fms-like tyrosine kinase 1 and placental growth factor, ...

journal_title：Circulation

authors： Goel A,Maski MR,Bajracharya S,Wenger JB,Zhang D,Salahuddin S,Shahul SS,Thadhani R,Seely EW,Karumanchi SA,Rana S

更新日期：2015-11-03 00:00:00

abstract：BACKGROUND:There is an inverse relationship between HDL cholesterol and coronary heart disease. Experimental studies have indicated that HDL cholesterol may exert an antiatherogenic effect by inducing regression of atherosclerotic plaques and by turning lipid-rich plaques into more fibrotic lesions. In this prospective...

journal_title：Circulation

authors： Johnsen SH,Mathiesen EB,Fosse E,Joakimsen O,Stensland-Bugge E,Njølstad I,Arnesen E

更新日期：2005-07-26 00:00:00

abstract：BACKGROUND:Pollution by particulates has been consistently associated with increased cardiovascular morbidity and mortality. However, the mechanisms responsible for these effects are not well-elucidated. METHODS AND RESULTS:To assess to what extent and how rapidly inhaled pollutant particles pass into the systemic cir...

journal_title：Circulation

authors： Nemmar A,Hoet PH,Vanquickenborne B,Dinsdale D,Thomeer M,Hoylaerts MF,Vanbilloen H,Mortelmans L,Nemery B

更新日期：2002-01-29 00:00:00

abstract：BACKGROUND:The pathophysiological mechanisms leading to acceleration of ventricular tachycardia (VT) are still unclear. METHODS AND RESULTS:High-resolution epicardial mapping was used to study the mechanisms of VT acceleration by programmed electrical stimulation (PES) in a model of sustained reentrant VT in Langendor...

journal_title：Circulation

authors： Brugada J,Brugada P,Boersma L,Mont L,Kirchhof C,Wellens HJ,Allessie MA

更新日期：1991-05-01 00:00:00

abstract：BACKGROUND:Current knowledge of prevalence, incidence, and survival in thoracic aortic diseases (aneurysm and dissection) is based on small studies from a dated era of treatment and diagnostic procedures. The objective of the present study was to reappraise epidemiology and long-term outcomes in subjects with thoracic ...

journal_title：Circulation

authors： Olsson C,Thelin S,Ståhle E,Ekbom A,Granath F

更新日期：2006-12-12 00:00:00

abstract：:The purpose of the present study was to evaluate potential diurnal changes in resting coronary blood flow under conditions of comparable myocardial oxygen requirements. We studied 21 conscious, resting dogs instrumented for the measurement of coronary flow, left ventricular pressure, and regional myocardial segment le...

journal_title：Circulation

authors： Fujita M,Franklin D

更新日期：1987-08-01 00:00:00

abstract：BACKGROUND:Left ventricular (LV) mass is an important predictor of heart failure and cardiovascular mortality, yet determinants of LV mass are incompletely understood. Pulmonary hyperinflation in chronic obstructive pulmonary disease (COPD) may contribute to changes in intrathoracic pressure that increase LV wall stres...

journal_title：Circulation

authors： Smith BM,Kawut SM,Bluemke DA,Basner RC,Gomes AS,Hoffman E,Kalhan R,Lima JA,Liu CY,Michos ED,Prince MR,Rabbani L,Rabinowitz D,Shimbo D,Shea S,Barr RG

更新日期：2013-04-09 00:00:00

abstract：BACKGROUND:Contrast agents can cause a reduction in renal function that may be due to the generation of reactive oxygen species. Conflicting evidence suggests that administration of the antioxidant acetylcysteine prevents this renal impairment. The action of other antioxidant agents has not been investigated. METHODS ...

journal_title：Circulation

authors： Spargias K,Alexopoulos E,Kyrzopoulos S,Iokovis P,Greenwood DC,Manginas A,Voudris V,Pavlides G,Buller CE,Kremastinos D,Cokkinos DV

更新日期：2004-11-02 00:00:00

abstract：:Despite the clinical prevalence of paradoxic interventricular septal (IVS) motion, its pathogenesis remains unclear. To assess the influence of the end-diastolic transseptal pressure gradient, we studied eight open-chest dogs during right ventricular (RV) volume loading (induced by opening a Dacron shunt between the p...

journal_title：Circulation

authors： Kingma I,Tyberg JV,Smith ER

更新日期：1983-12-01 00:00:00

abstract：:Survival rates were determined for a group of 598 patients in whom severe coronary disease was demonstrated by arteriography; initially they were treated medically and were followed-up for 15 years. Deaths due to noncoronary causes were uncommon (5% of total) in the first 5 year period but were frequent (36%) in the t...

journal_title：Circulation

authors： Proudfit WJ,Bruschke AV,MacMillan JP,Williams GW,Sones FM Jr

更新日期：1983-11-01 00:00:00

abstract：:The effect of diabetes on survival after coronary bypass surgery is uncertain. Also, although the overall clinical benefits of internal mammary artery (IMA) grafting are well established, the survival benefit attributable to IMA grafting in diabetics is not well characterized. To determine the influence of diabetes an...

journal_title：Circulation

authors： Morris JJ,Smith LR,Jones RH,Glower DD,Morris PB,Muhlbaier LH,Reves JG,Rankin JS

更新日期：1991-11-01 00:00:00

abstract：BACKGROUND:The relation between left ventricular (LV) oxygen consumption (MVO2) and pressure-volume area (PVA) developed in isolated hearts provides a powerful method to understand cardiac energetics. We investigated application of this relation to the intact circulation, determining its response to steady-state and tr...

journal_title：Circulation

authors： Nozawa T,Cheng CP,Noda T,Little WC

更新日期：1994-02-01 00:00:00

abstract：BACKGROUND:Nitric oxide (NO) modulates autonomic effects on myocardial contractility and sinus and atrioventricular nodal function of the heart. Whether NO influences autonomic actions on ventricular electrophysiological properties and arrhythmogenesis is not known. METHODS AND RESULTS:Four groups consisting of 43 aut...

journal_title：Circulation

authors： Fei L,Baron AD,Henry DP,Zipes DP

更新日期：1997-12-02 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:Previous studies suggest that management of ambulatory hemodynamics may improve outcomes in chronic heart failure. We conducted a prospective, observational, first-in-human study of a physician-directed patient self-management system targeting left atrial pressure. METHODS AND RESULTS:Forty patients with re...

journal_title：Circulation

authors： Ritzema J,Troughton R,Melton I,Crozier I,Doughty R,Krum H,Walton A,Adamson P,Kar S,Shah PK,Richards M,Eigler NL,Whiting JS,Haas GJ,Heywood JT,Frampton CM,Abraham WT,Hemodynamically Guided Home Self-Therapy in Severe Hea

更新日期：2010-03-09 00:00:00

abstract：BACKGROUND:The use of atherosclerotic cardiovascular disease (ASCVD) risk to personalize systolic blood pressure (SBP) treatment goals is a topic of increasing interest. Therefore, we studied whether coronary artery calcium (CAC) can further guide the allocation of anti-hypertensive treatment intensity. METHODS:We inc...

journal_title：Circulation

authors： McEvoy JW,Martin SS,Dardari ZA,Miedema MD,Sandfort V,Yeboah J,Budoff MJ,Goff DC Jr,Psaty BM,Post WS,Nasir K,Blumenthal RS,Blaha MJ

更新日期：2017-01-10 00:00:00

abstract：BACKGROUND:Reperfusion of ischemic rat hearts in the presence of thrombin or norepinephrine but not endothelin-1 causes the generation of inositol 1,4,5-trisphosphate (Ins 1,4,5P3) and arrhythmias. The present study investigates the effect of endothelin-1 on these responses. METHODS AND RESULTS:Ins 1,4,5P3 generation ...

journal_title：Circulation

authors： Woodcock EA,Reyes N,Jacobsen AN,Du XJ

更新日期：1999-02-16 00:00:00

abstract：BACKGROUND:The maintenance and termination of reentry arrhythmias are determined by tissue properties such as refractoriness and conduction velocity. Although the effects of Na(+) and K(+) channel block on electrophysiological properties and defibrillation threshold (DFT) have been studied, little is known about the ef...

journal_title：Circulation

authors： Qi X,Varma P,Newman D,Dorian P

更新日期：2001-09-25 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:Clopidogrel is administered to prevent stent thrombosis; however, the uniformity of platelet inhibition after treatment and the influence of pretreatment reactivity on drug response have not been described. METHODS AND RESULTS:Platelet aggregation (5 and 20 micromol/L ADP), the activation of glycoprotein II...

journal_title：Circulation

authors： Gurbel PA,Bliden KP,Hiatt BL,O'Connor CM

更新日期：2003-06-17 00:00:00

abstract：BACKGROUND:Hypercholesterolemia is associated with endothelial dysfunction. On the basis of the hypothesis that high plasma cholesterol per se may be a sufficient stimulus to upregulate endothelial adhesiveness and that this phenomenon might be reversible, soluble endothelial leukocyte adhesion molecules (sELAMs) were ...

journal_title：Circulation

authors： Sampietro T,Tuoni M,Ferdeghini M,Ciardi A,Marraccini P,Prontera C,Sassi G,Taddei M,Bionda A

更新日期：1997-09-02 00:00:00

abstract：BACKGROUND:Sirolimus-eluting stents have been reported to be effective in the treatment of coronary bifurcations. Still, it has not been fully clarified which strategy would provide the best results with true bifurcation lesions. METHODS AND RESULTS:The CACTUS trial (Coronary bifurcations: Application of the Crushing ...

journal_title：Circulation

authors： Colombo A,Bramucci E,Saccà S,Violini R,Lettieri C,Zanini R,Sheiban I,Paloscia L,Grube E,Schofer J,Bolognese L,Orlandi M,Niccoli G,Latib A,Airoldi F

更新日期：2009-01-06 00:00:00

abstract：:Nine patients (eight males) are reported with one or more episodes of circulatory collapse in the absence of overt heart disease or other known causes of arrhythmias; sudden arrhythmic death occurred in one of these patients. Age at first episode ranged from 16 to 41 (mean, 28) years. In seven patients, ventricular fi...

journal_title：Circulation

authors： Wellens HJ,Lemery R,Smeets JL,Brugada P,Gorgels AP,Cheriex EC,de Zwaan C

更新日期：1992-01-01 00:00:00

abstract：BACKGROUND:Inhibition of fibrinolysis attributable to elevated concentrations of plasminogen activator inhibitor type 1 (PAI-1) in blood is associated with insulin resistance, hyperinsulinemia, and type 2 diabetes mellitus. Because we have shown that insulin can stimulate PAI-1 synthesis in vivo and because accelerated...

journal_title：Circulation

authors： Sobel BE,Woodcock-Mitchell J,Schneider DJ,Holt RE,Marutsuka K,Gold H

更新日期：1998-06-09 00:00:00

abstract：BACKGROUND:Smoking is a major risk factor for cardiovascular events. One of the potential mechanisms may be related to both coronary endothelial dysfunction and increased inflammatory response. The present study was designed to test the hypothesis that smoking is associated with epicardial coronary endothelial dysfunct...

journal_title：Circulation

authors： Lavi S,Prasad A,Yang EH,Mathew V,Simari RD,Rihal CS,Lerman LO,Lerman A

更新日期：2007-05-22 00:00:00

abstract：BACKGROUND:High-mobility group box-1 (HMGB1) is a nuclear factor released by necrotic cells and by activated immune cells. HMGB1 signals via members of the toll-like receptor family and the receptor for advanced glycation end products (RAGE). Although HMGB1 has been implicated in ischemia/reperfusion (I/R) injury of th...

journal_title：Circulation

authors： Andrassy M,Volz HC,Igwe JC,Funke B,Eichberger SN,Kaya Z,Buss S,Autschbach F,Pleger ST,Lukic IK,Bea F,Hardt SE,Humpert PM,Bianchi ME,Mairbäurl H,Nawroth PP,Remppis A,Katus HA,Bierhaus A

更新日期：2008-06-24 00:00:00

abstract：BACKGROUND:Right ventricular (RV) dilatation that occurs as a consequence of RV infarction is thought to produce hemodynamic instability by reducing left ventricular (LV) preload and compliance. We hypothesized that these geometric changes may also adversely affect LV systolic performance. METHODS AND RESULTS:Twelve 4...

journal_title：Circulation

authors： Brookes C,Ravn H,White P,Moeldrup U,Oldershaw P,Redington A

更新日期：1999-08-17 00:00:00

abstract：BACKGROUND:Molecular targeted chemotherapies have been shown to significantly improve the outcomes of patients who have cancer, but they often cause cardiovascular side effects that limit their use and impair patients' quality of life. Cardiac dysfunction induced by these therapies, especially trastuzumab, shows a dist...

journal_title：Circulation

authors： Kitani T,Ong SG,Lam CK,Rhee JW,Zhang JZ,Oikonomopoulos A,Ma N,Tian L,Lee J,Telli ML,Witteles RM,Sharma A,Sayed N,Wu JC

更新日期：2019-05-21 00:00:00

abstract：:A mathematical model to measure infarct size from serial estimates of CPK has been developed by Shell et al. Norris et al. have recently introduced a modification of this method by calculating an individualized disappearance rate parameter (Kd) from the uniformly monoexponential portion of the CPK vs time curve. This ...

journal_title：Circulation

authors： Slutsky AS

更新日期：1977-10-01 00:00:00