Circulatory assistance with a permanent implantable IABP: initial human experience.

abstract：BACKGROUND:Physical forces, such as pressure and flow, are well known to affect vascular function in the coronary circulation. Increases in shear stress produce vasodilation in coronary arterioles in vitro, and constant-flow preparations suggest a role for shear stress-induced vasodilation during adjustments to metabol...

journal_title：Circulation

authors： Stepp DW,Nishikawa Y,Chilian WM

更新日期：1999-10-05 00:00:00

abstract：:The purpose of this study was to assess the sensitivity and specificity of two-dimensional echocardiography in detecting ischemia-induced transient myocardial dyskinesis. We prepared an open-chest dog model of severe coronary stenosis (90% reduction of circumflex coronary artery diameter) and induced ischemia by acute...

journal_title：Circulation

authors： Pandian NG,Kerber RE

更新日期：1982-09-01 00:00:00

abstract：BACKGROUND:The mechanisms linking obesity to hypertension have not been established, but sodium retention and excessive sympathetic tone are key contributors. The natriuretic peptides are important regulators of sodium homeostasis and neurohormonal activation, raising the possibility that obese individuals have an impa...

journal_title：Circulation

authors： Wang TJ,Larson MG,Levy D,Benjamin EJ,Leip EP,Wilson PW,Vasan RS

更新日期：2004-02-10 00:00:00

abstract：BACKGROUND:Whether and to what extent complement is activated in acute myocardial infarction (AMI) and how it contributes to inflammation of the ischemic area are not yet clear. Fibrinolytic agents used for thrombolysis are known to activate complement in vitro and may contribute to its activation in vivo. The aim of t...

journal_title：Circulation

authors： Frangi D,Gardinali M,Conciato L,Cafaro C,Pozzoni L,Agostoni A

更新日期：1994-01-01 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：:One hundred four patients younger than 20 years of age underwent intracardiac xenograft valve replacement (n = 41) or extracardiac conduit implantation (n = 63). Long-term follow-up averaged 4.5 and 4.3 years, respectively, and cumulative follow-up totaled 344 patient-years (pt-yr). Thirty patients were followed more ...

journal_title：Circulation

authors： Miller DC,Stinson EB,Oyer PE,Billingham ME,Pitlick PT,Reitz BA,Jamieson SW,Baumgartner WA,Shumway NE

更新日期：1982-08-01 00:00:00

abstract：:Simplified estimates of the potential patients eligible for coronary artery bypass surgery are presented. Various means of identification are discussed, as well as effects of two levels of stenosis. Although ultimate operability is not directly considered, the results demonstrate a substantial and growing pool of elig...

journal_title：Circulation

authors： Cutter GR,Oberman A,Kouchoukos N,Rogers W

更新日期：1982-11-01 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：:Intravascular ultrasound imaging is a promising new method for assessing vascular morphology. We evaluated the capability of intravascular ultrasound to quantify pulmonary artery (PA) morphology in vitro and explored the feasibility of in vivo PA imaging in animals and humans. In the in vitro study of 15 PA segments, ...

journal_title：Circulation

authors： Pandian NG,Weintraub A,Kreis A,Schwartz SL,Konstam MA,Salem DN

更新日期：1990-06-01 00:00:00

abstract：BACKGROUND:Symptomatic prolonged sinus pauses on termination of atrial fibrillation (AF) are an indication for pacemaker implantation. We evaluated sinus node function and clinical outcome in patients with prolonged sinus pauses on termination of arrhythmia who underwent ablation of paroxysmal AF. METHODS AND RESULTS:...

journal_title：Circulation

authors： Hocini M,Sanders P,Deisenhofer I,Jaïs P,Hsu LF,Scavée C,Weerasoriya R,Raybaud F,Macle L,Shah DC,Garrigue S,Le Metayer P,Clémenty J,Haïssaguerre M

更新日期：2003-09-09 00:00:00

abstract：:To determine if acute lung rejection after heart-lung transplantation can be detected noninvasively with indium-111-labeled (111In) lymphocytes, we studied 33 allogeneic and 18 isogeneic heterotopic heart-lung transplants in rats. Twenty-four hours after injection of isogeneic splenic 111In-lymphocytes (75 +/- 2 micro...

journal_title：Circulation

authors： Arai H,Yuda T,Goodgold HM,deMello DE,Hendershott L,Pennington DG

更新日期：1991-11-01 00:00:00

abstract：BACKGROUND:Among adults, skipping meals is associated with excess body weight, hypertension, insulin resistance, and elevated fasting lipid concentrations. However, it remains unknown whether specific eating habits regardless of dietary composition influence coronary heart disease (CHD) risk. The objective of this stud...

journal_title：Circulation

authors： Cahill LE,Chiuve SE,Mekary RA,Jensen MK,Flint AJ,Hu FB,Rimm EB

更新日期：2013-07-23 00:00:00

abstract：BACKGROUND:The composition of plaque is a major determinant of coronary-related clinical syndromes. Intravascular ultrasound (IVUS) elastography has proven to be a technique capable of reflecting the mechanical properties of phantom material and the femoral arterial wall. The aim of this study was to investigate the ca...

journal_title：Circulation

authors： de Korte CL,Pasterkamp G,van der Steen AF,Woutman HA,Bom N

更新日期：2000-08-08 00:00:00

abstract：BACKGROUND:In the preterm newborn, a patent ductus arteriosus is in large part a result of the increased sensitivity of the immature ductus to prostaglandin E2 (PGE2). PGE2 acts through 3 G protein-coupled receptors (EP2, EP3, and EP4) that activate both adenyl cyclase and K(ATP) channels. We explored these pathways to...

journal_title：Circulation

authors： Waleh N,Kajino H,Marrache AM,Ginzinger D,Roman C,Seidner SR,Moss TJ,Fouron JC,Vazquez-Tello A,Chemtob S,Clyman RI

更新日期：2004-10-19 00:00:00

abstract：BACKGROUND:NADH/NADPH oxidase is an important source of superoxide in the vasculature. Recently, we found that polymorphism of the gene p22phox, a critical component of this oxidase, is associated with a risk of coronary artery disease. The aim of this study was to investigate the localization of p22phox in human coron...

journal_title：Circulation

authors： Azumi H,Inoue N,Takeshita S,Rikitake Y,Kawashima S,Hayashi Y,Itoh H,Yokoyama M

更新日期：1999-10-05 00:00:00

abstract：BACKGROUND:Associations of obesity with incidence of heart failure have been observed, but the causality is uncertain. We hypothesized that gastric bypass surgery leads to a lower incidence of heart failure compared with intensive lifestyle modification in obese people. METHODS:We included obese people without previou...

journal_title：Circulation

authors： Sundström J,Bruze G,Ottosson J,Marcus C,Näslund I,Neovius M

更新日期：2017-04-25 00:00:00

abstract：BACKGROUND:Traditional risk factors have been linked to atherosclerotic heart disease in women. However, the effect of risk factors and menopausal status on the mechanism of sudden coronary death is unknown. METHODS AND RESULTS:We examined 51 cases of sudden coronary death and 15 hearts from women who died of trauma. ...

journal_title：Circulation

authors： Burke AP,Farb A,Malcom GT,Liang Y,Smialek J,Virmani R

更新日期：1998-06-02 00:00:00

abstract：:Esophageal perforation is a dreaded complication of atrial fibrillation ablation that occurs in 0.1% to 0.25% of atrial fibrillation ablation procedures. Delayed diagnosis is associated with the development of atrial-esophageal fistula (AEF) and increased mortality. The relationship between the esophagus and the left ...

journal_title：Circulation

authors： Kapur S,Barbhaiya C,Deneke T,Michaud GF

更新日期：2017-09-26 00:00:00

abstract：BACKGROUND:The mechanisms of increased neointimal hyperplasia after coronary interventions in diabetic patients are still unknown. METHODS AND RESULTS:Glucose and insulin effects on in vitro vascular smooth muscle cell (VSMC) proliferation and migration were assessed. The effect of balloon injury on neointimal hyperpl...

journal_title：Circulation

authors： Indolfi C,Torella D,Cavuto L,Davalli AM,Coppola C,Esposito G,Carriero MV,Rapacciuolo A,Di Lorenzo E,Stabile E,Perrino C,Chieffo A,Pardo F,Chiariello M

更新日期：2001-06-19 00:00:00

abstract：BACKGROUND:Thrombus regression in heparin-treated, acute deep venous thrombosis of the lower extremity is poorly documented in the literature; different rates of thrombus resolution and recanalization are reported. METHODS AND RESULTS:In a prospective follow-up study, duplex scanning was used to evaluate the thrombus ...

journal_title：Circulation

authors： van Ramshorst B,van Bemmelen PS,Hoeneveld H,Faber JA,Eikelboom BC

更新日期：1992-08-01 00:00:00

abstract：:Patients with aortic stenosis develop widely variable patterns of left ventricular hypertrophy and dysfunction. We postulated that coronary atherosclerosis (CAD) may be associated with impaired left ventricular function and chamber dilatation in patients with aortic stenosis. Left ventricular mass and volumes were qua...

journal_title：Circulation

authors： Vekshtein VI,Alexander RW,Yeung AC,Plappert T,Sutton MG,Ganz P,Selwyn AP,Bittl JA

更新日期：1990-12-01 00:00:00

abstract：BACKGROUND:Controversy exists as to whether low-osmolality radiographic contrast agents, which have less detrimental pharmacological effects but are considerably more expensive than high-osmolality agents, should be used universally or only for selected high-risk patients. METHODS AND RESULTS:A randomized, double-blin...

journal_title：Circulation

authors： Matthai WH Jr,Kussmaul WG 3rd,Krol J,Goin JE,Schwartz JS,Hirshfeld JW Jr

更新日期：1994-01-01 00:00:00

abstract：:In this paper we examine the relationship between risk factors and angiographically determined coronary artery disease for blacks and whites enrolled in the Coronary Artery Surgery Study (CASS). Analysis of data from the CASS registry indicated that blacks had a higher incidence of hypertension and current cigarette s...

journal_title：Circulation

authors： Maynard C,Fisher LD,Passamani ER,Pullum T

更新日期：1986-07-01 00:00:00

abstract：BACKGROUND:A low level of HDL cholesterol has been identified as a risk factor for stroke in observational studies. METHODS AND RESULTS:Our objective was to determine whether treatment aimed at raising HDL cholesterol and lowering triglycerides reduces stroke in men with coronary heart disease and low levels of both H...

journal_title：Circulation

authors： Bloomfield Rubins H,Davenport J,Babikian V,Brass LM,Collins D,Wexler L,Wagner S,Papademetriou V,Rutan G,Robins SJ,VA-HIT Study Group.

更新日期：2001-06-12 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:Endothelin (ET)-1 and norepinephrine (NE) are involved in myocardial ischemia/reperfusion injury. We investigated the role of ET-1 in ischemia/reperfusion-induced NE overflow and cardiac dysfunction using a selective ET(A) receptor antagonist (ABT-627), a selective ET(B) receptor antagonist (A-192621), and t...

journal_title：Circulation

authors： Yamamoto S,Matsumoto N,Kanazawa M,Fujita M,Takaoka M,Gariepy CE,Yanagisawa M,Matsumura Y

更新日期：2005-01-25 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：BACKGROUND:Current studies have demonstrated that applying therapeutic hypothermia for 12 to 24 hours after resuscitation from cardiac arrest improves the outcomes of cardiopulmonary resuscitation. The present study investigated whether a shorter duration of therapeutic hypothermia induced quickly and early after resus...

journal_title：Circulation

authors： Ye S,Weng Y,Sun S,Chen W,Wu X,Li Z,Weil MH,Tang W

更新日期：2012-01-03 00:00:00

abstract：:The effect of bretylium tosylate (BT) was determined in 27 consecutive cases of resistant ventricular fibrillation (VF) encountered by a hospital cardiac arrest team. The VF was sustained and completely resistant to multiple injections of lidocaine, sequential DC shocks at 400 watt-sec and one or a combination of intr...

journal_title：Circulation

authors： Holder DA,Sniderman AD,Fraser G,Fallen EL

更新日期：1977-03-01 00:00:00

abstract：BACKGROUND:Mutations in the gene G4.5 result in a wide spectrum of severe infantile cardiomyopathic phenotypes, including isolated left ventricular noncompaction (LVNC), as well as Barth syndrome (BTHS) with dilated cardiomyopathy (DCM). The purpose of this study was to investigate patients with LVNC or BTHS for mutati...

journal_title：Circulation

authors： Ichida F,Tsubata S,Bowles KR,Haneda N,Uese K,Miyawaki T,Dreyer WJ,Messina J,Li H,Bowles NE,Towbin JA

更新日期：2001-03-06 00:00:00