Why is off-pump coronary surgery uncommon in Canada? Results of a population-based survey of Canadian heart surgeons.

abstract：BACKGROUND:The majority of infrarenal abdominal aortic aneurysm (AAA) repairs in the United States are performed with endovascular methods. Baseline aortoiliac arterial anatomic characteristics are fundamental criteria for appropriate patient selection for endovascular aortic repair (EVAR) and key determinants of long-...

journal_title：Circulation

authors： Schanzer A,Greenberg RK,Hevelone N,Robinson WP,Eslami MH,Goldberg RJ,Messina L

更新日期：2011-06-21 00:00:00

abstract：:Between 1964 and 1971, 49 patients were discharged from hospital following atrial baffle repair for transposition of the great arteries. Electrocardiograms of 47 of these patients were available for review seven months to eight and a half years (average 31 months) after operation. Of the 46 patients in sinus rhythm pr...

journal_title：Circulation

authors： Clarkson PM,Barratt-Boyles BG,Neutze JM

更新日期：1976-03-01 00:00:00

abstract：BACKGROUND:Because of the marked difference in the incidence and severity of cardiovascular diseases between men and premenopausal women, several groups have studied the effect of sex steroids, particularly estrogen, on vascular endothelial prostacyclin (PGI2) release. No previous studies have addressed the effect of e...

journal_title：Circulation

authors： Redmond EM,Cherian MN,Wetzel RC

更新日期：1994-11-01 00:00:00

abstract：OBJECTIVE:To assess the outcome of 3 different surgical approaches for treatment of acute aortic dissection type A (AADA). METHODS AND RESULTS:Between October 1990 and October 2003, we operated on 295 patients (pts) for AADA. Follow-up was complete for 257 pts (87%). Supracommissural replacement (SCR) of the ascending...

journal_title：Circulation

authors： Kallenbach K,Oelze T,Salcher R,Hagl C,Karck M,Leyh RG,Haverich A

更新日期：2004-09-14 00:00:00

abstract：BACKGROUND:We compared the efficacy and safety of different dosages of a low-molecular-weight heparin, CY 216 D (Fraxiparine), in the treatment of submassive pulmonary embolism with unfractionated heparin in a prospective, randomized, dose-finding study. METHODS AND RESULTS:The primary outcome was the evolution of pul...

journal_title：Circulation

authors： Théry C,Simonneau G,Meyer G,Hélénon O,Bridey F,Armagnac C,d'Azemar P,Coquart JP

更新日期：1992-04-01 00:00:00

abstract：BACKGROUND:The incidence of cardiovascular disease (CVD), coronary heart disease (CHD), and type 2 diabetes mellitus (T2DM) has not been well defined in persons with the metabolic syndrome (at least 3 of the following: abdominal adiposity, low HDL cholesterol, high triglycerides, hypertension, and impaired fasting gluc...

journal_title：Circulation

authors： Wilson PW,D'Agostino RB,Parise H,Sullivan L,Meigs JB

更新日期：2005-11-15 00:00:00

abstract：BACKGROUND:The cyclin-dependent kinase inhibitors (CKIs) have different patterns of expression in vascular diseases. The Kip/Cip CKIs, p27(Kip1) and p21(Cip1), are upregulated during arterial repair and negatively regulate the growth of vascular smooth muscle cells (VSMCs). In contrast, the Ink CKI, p16(Ink4), is not e...

journal_title：Circulation

authors： Tanner FC,Boehm M,Akyürek LM,San H,Yang ZY,Tashiro J,Nabel GJ,Nabel EG

更新日期：2000-05-02 00:00:00

abstract：:We studied the effects of experimentally induced emotional stress (mental arithmetic) on different hemodynamic parameters, catecholamine levels, and serum and platelet function tests in 25 postinfarction patients and in 10 apparently healthy, age-matched control subjects. Mental stress (10 minutes) induced significant...

journal_title：Circulation

authors： Grignani G,Soffiantino F,Zucchella M,Pacchiarini L,Tacconi F,Bonomi E,Pastoris A,Sbaffi A,Fratino P,Tavazzi L

更新日期：1991-04-01 00:00:00

abstract：:A genetic-epidemiologic study was undertaken of a white Colorado population of 207 patients who had a myocardial infarction before age 55 years. Nineteen independent variables were compared between the 207 cases and 621 controls, matched 3:1. The highest risk ratios were associated with a positive family history for i...

journal_title：Circulation

authors： Nora JJ,Lortscher RH,Spangler RD,Nora AH,Kimberling WJ

更新日期：1980-03-01 00:00:00

abstract：:Both the Veterans Administration Cooperative Study and the European Coronary Surgery Study have provided only brief accounts of graft patency rates in their surgically treated patients. In the Veterans Administration Cooperative Study, at an average of 1 year after operation, 69% of the grafts were patent among 208 pa...

journal_title：Circulation

authors： Bourassa MG,Fisher LD,Campeau L,Gillespie MJ,McConney M,Lespérance J

更新日期：1985-12-01 00:00:00

abstract：BACKGROUND:The sarcomeric protein titin is a molecular spring responsible for passive tension and restoring forces of cardiomyocytes. Extension of titin as a function of sarcomere length (SL) has been studied in rodents, which predominantly express the smaller, stiffer N2B titin isoform. Large mammals coexpress roughly...

journal_title：Circulation

authors： Lewinter MM,Popper J,McNabb M,Nyland L,Bell SB,Granzier H

更新日期：2010-02-16 00:00:00

abstract：:Current imaging modalities can provide only a qualitative or semiquantitative measure of the severity of aortic regurgitation. Ultrafast computed tomography (CT) has the capability of rapid imaging (17 frames/sec) coupled with high spatial resolution (1.5 mm2). Eight millimeter thick images can be acquired to interrog...

journal_title：Circulation

authors： Reiter SJ,Rumberger JA,Stanford W,Marcus ML

更新日期：1987-09-01 00:00:00

abstract：BACKGROUND:The coagulation system is closely linked with vascular inflammation, although the underlying mechanisms are still obscure. Recent studies show that protease-activated receptor (PAR)-2, a major receptor of activated factor X, is expressed in both vascular cells and leukocytes, suggesting that PAR-2 may contri...

journal_title：Circulation

authors： Hara T,Phuong PT,Fukuda D,Yamaguchi K,Murata C,Nishimoto S,Yagi S,Kusunose K,Yamada H,Soeki T,Wakatsuki T,Imoto I,Shimabukuro M,Sata M

更新日期：2018-10-16 00:00:00

abstract：BACKGROUND:Current methods of signal-averaged ECG analysis interrogate the terminal 40 msec of the QRS complex and/or the ST segment and have a low positive-predictive accuracy for detecting vulnerability to sustained ventricular tachycardia (VT). The extent to which abnormalities detected during these ECG intervals ar...

journal_title：Circulation

authors： Hood MA,Pogwizd SM,Peirick J,Cain ME

更新日期：1992-12-01 00:00:00

abstract：BACKGROUND:In this study we tested the hypothesis that atrial fibrillation (AF) causes electrophysiological changes of the atrial myocardium which might explain the progressive nature of the arrhythmia. METHODS AND RESULTS:Twelve goats were chronically instrumented with multiple electrodes sutured to the epicardium of...

journal_title：Circulation

authors： Wijffels MC,Kirchhof CJ,Dorland R,Allessie MA

更新日期：1995-10-01 00:00:00

abstract：:We determined the efficacy, pharmacokinetics, and plasma concentration-response relationships of propafenone, a promising new antiarrhythmic drug. Thirteen patients with frequent and complex ventricular premature beats were studied after receiving four increasing doses, during drug washout and during a randomized doub...

journal_title：Circulation

authors： Connolly SJ,Kates RE,Lebsack CS,Harrison DC,Winkle RA

更新日期：1983-09-01 00:00:00

abstract：BACKGROUND:We developed a computer model to predict lysis rates of thrombi for intravenous thrombolytic regimens based on the convective/diffusive penetration of reacting and adsorbing fibrinolytic species from the circulation into the proximal face of a dissolving clot. METHODS AND RESULTS:Solution of a one-compartme...

journal_title：Circulation

authors： Anand S,Diamond SL

更新日期：1996-08-15 00:00:00

abstract：BACKGROUND:Vasospasm of the internal thoracic artery (ITA) is common. The purpose of this study was to characterize the vascular reactivity of human ITA to dopaminergic agents used in patients undergoing coronary bypass surgery (CBS): dopamine, dobutamine, and dopexamine. METHODS AND RESULTS:Segments of the distal ITA...

journal_title：Circulation

authors： Myers ML,Li GH,Yaghi A,McCormack D

更新日期：1993-11-01 00:00:00

abstract：:Multiple areas of concealed intraventricular conduction are deduced on the basis of aftereffects observed in His bundle recordings. Electrocardiograms and His bundle recordings are presented from two patients with unstable bilateral bundle branch block, the instability of which depended on the interval at which ventri...

journal_title：Circulation

authors： Cohen HC,D'Cruz I,Pick A

更新日期：1976-05-01 00:00:00

abstract：BACKGROUND:The incidence of pulmonary arterial hypertension secondary to the use of indirect serotinergic agonists such as aminorex and dexfenfluramine led to the "serotonin hypothesis" of pulmonary arterial hypertension; however, the role of serotonin in dexfenfluramine-induced pulmonary arterial hypertension remains ...

journal_title：Circulation

authors： Dempsie Y,Morecroft I,Welsh DJ,MacRitchie NA,Herold N,Loughlin L,Nilsen M,Peacock AJ,Harmar A,Bader M,MacLean MR

更新日期：2008-06-03 00:00:00

abstract：BACKGROUND:Randomized clinical trials have shown that multivessel coronary angioplasty is feasible and provides similar long-term survival as bypass surgery in selected patients. However, the higher need for repeat intervention, in particular, coronary artery bypass graft surgery, remains a problem. The objective of th...

journal_title：Circulation

authors： Moussa I,Reimers B,Moses J,Di Mario C,Di Francesco L,Ferraro M,Colombo A

更新日期：1997-12-02 00:00:00

abstract：BACKGROUND:A growing body of evidence from animal studies supports the hypothesis that oxidative stress-mediated mechanisms play a central role in early atherogenesis. In contrast, clinical trials with antioxidant vitamins have not produced consistent results in humans with established atherosclerosis. METHODS AND RES...

journal_title：Circulation

authors： Cyrus T,Yao Y,Rokach J,Tang LX,Praticò D

更新日期：2003-02-04 00:00:00

abstract：:Prenalterol, a beta-adrenergic agonist, was given to nine patients with angiographically proved coronary artery disease. Subjects were studied during chronic beta-adrenergic blockade. The adequacy of blockade was assessed by the exercise heart rate response and by plasma concentrations of blocking agents. After increm...

journal_title：Circulation

authors： Shiu MF,Ireland MA,Littler WA

更新日期：1981-12-01 00:00:00

abstract：BACKGROUND:Stress cardiomyopathy (SCM) is a peculiar form of reversible left ventricular dysfunction seen predominantly in women and occurs in response to emotional or physical stress. Because dysfunction in SCM is reversible and that of acute myocardial infarction (MI) is not, we hypothesized that these fundamental me...

journal_title：Circulation

authors： Medeiros K,O'Connor MJ,Baicu CF,Fitzgibbons TP,Shaw P,Tighe DA,Zile MR,Aurigemma GP

更新日期：2014-04-22 00:00:00

abstract：:To examine whether nicardipine, a dihydropyridine derivative, limits size of myocardial infarction, and to compare the protective effects of nicardipine administered before and early and late after coronary artery occlusion, 99mTc-labeled albumin microspheres were injected into the left atrium during 5 min temporary c...

journal_title：Circulation

authors： Endo T,Nejima J,Fujita S,Kiuchi K,Iida N,Kikuchi K,Hayakawa H,Okumura H

更新日期：1986-08-01 00:00:00

abstract：BACKGROUND:Restenosis after percutaneous coronary intervention (PCI) is a major problem affecting 15% to 30% of patients after stent placement. No oral agent has shown a beneficial effect on restenosis or on associated major adverse cardiovascular events. In limited trials, the oral agent tranilast has been shown to de...

journal_title：Circulation

authors： Holmes DR Jr,Savage M,LaBlanche JM,Grip L,Serruys PW,Fitzgerald P,Fischman D,Goldberg S,Brinker JA,Zeiher AM,Shapiro LM,Willerson J,Davis BR,Ferguson JJ,Popma J,King SB 3rd,Lincoff AM,Tcheng JE,Chan R,Granett JR,P

更新日期：2002-09-03 00:00:00

abstract：:Certain clinical and morphologic observations are described in 27 patients with severe isolated angina pectoris of either the stable (five patients) or the unstable form (22 patients). Twenty-four patients died during or shortly after cardiac operations designed to relieve angina pectoris and three died during cardiac...

journal_title：Circulation

authors： Roberts WC

更新日期：1976-09-01 00:00:00

abstract：:To determine whether alteration of intrinsic myocardial stiffness is responsible for the reduction of left ventricular filling pressure and volume by nifedipine in patients with impaired baseline ventricular function, we evaluated the hemodynamic responses in 32 patients undergoing diagnostic cardiac catheterization. ...

journal_title：Circulation

authors： Kurnik PB,Courtois MR,Ludbrook PA

更新日期：1986-07-01 00:00:00

abstract：BACKGROUND:The effects of carteolol, a nonselective beta-adrenergic receptor blocker with intrinsic sympathomimetic activity, were compared with those of metoprolol in a murine model of viral myocarditis and dilated cardiomyopathy caused by encephalomyocarditis virus. METHODS AND RESULTS:In the acute experiment, BALB/...

journal_title：Circulation

authors： Tominaga M,Matsumori A,Okada I,Yamada T,Kawai C

更新日期：1991-06-01 00:00:00

abstract：BACKGROUND:This study examines the cellular basis for the phenotypic appearance of broad-based T waves, increased transmural dispersion of repolarization (TDR), and torsade de pointes (TdP) induced by beta-adrenergic agonists under conditions mimicking the LQT1 form of the congenital long-QT syndrome. METHODS AND RESU...

journal_title：Circulation

authors： Shimizu W,Antzelevitch C

更新日期：1998-11-24 00:00:00