Single and two-dimensional echocardiographic visualization of the effects of septal myectomy in idiopathic hypertrophic subaortic stenosis.

abstract：PURPOSE:The Kantrowitz CardioVAD (KCV) is an electrically powered, pneumatically driven circulatory assist device which provides diastolic augmentation and systolic unloading to the failing heart. It consists of a 60cc-pumping chamber, a percutaneous access device (PAD), and an external controller. The pumping chamber,...

journal_title：Circulation

authors： Jeevanandam V,Jayakar D,Anderson AS,Martin S,Piccione W Jr,Heroux AL,Wynne J,Stephenson LW,Hsu J,Freed PS,Kantrowitz A

更新日期：2002-09-24 00:00:00

abstract：BACKGROUND:Coronary blood flow occurs mainly during the diastolic phase of each cardiac cycle and is mainly dependent on diastolic driving pressure, especially in the left anterior descending coronary artery (LAD). We hypothesized that calculation of the ratio of the diastolic driving pressure of a stenotic LAD to its ...

journal_title：Circulation

authors： Abe M,Tomiyama H,Yoshida H,Doba N

更新日期：2000-11-07 00:00:00

abstract：BACKGROUND:Muscle sympathetic nerve activity (MSNA) is increased in patients with obstructive sleep apnea (OSA). We tested the hypothesis that tonic activation of excitatory chemoreceptor afferents contributes to the elevated sympathetic activity in OSA. METHODS AND RESULTS:Using a double-blind, randomized, vehicle-co...

journal_title：Circulation

authors： Narkiewicz K,van de Borne PJ,Montano N,Dyken ME,Phillips BG,Somers VK

更新日期：1998-03-17 00:00:00

abstract：BACKGROUND:Early detection of adverse effects of novel therapies and understanding of their mechanisms could improve the safety and efficiency of drug development. We have retrospectively applied large-scale proteomics to blood samples from ILLUMINATE (Investigation of Lipid Level Management to Understand its Impact in...

journal_title：Circulation

authors： Williams SA,Murthy AC,DeLisle RK,Hyde C,Malarstig A,Ostroff R,Weiss SJ,Segal MR,Ganz P

更新日期：2018-03-06 00:00:00

abstract：:The purpose of this study was to identify preoperative and intraoperative variables predictive of left ventricular dysfunction 6 months after aortic valve replacement. Patients were considered to have postoperative left ventricular dysfunction if the end-diastolic-volume index was greater than or equal to 101 ml/m2 or...

journal_title：Circulation

authors： Hwang MH,Hammermeister KE,Oprian C,Henderson W,Bousvaros G,Wong M,Miller DC,Folland E,Sethi G

更新日期：1989-09-01 00:00:00

abstract：BACKGROUND:L-arginine is the precursor of endothelium-derived nitric oxide, an endogenous vasodilator. L-arginine supplementation improves vascular reactivity and functional capacity in peripheral arterial disease (PAD) in small, short-term studies. We aimed to determine the effects of long-term administration of L-arg...

journal_title：Circulation

authors： Wilson AM,Harada R,Nair N,Balasubramanian N,Cooke JP

更新日期：2007-07-10 00:00:00

abstract：BACKGROUND:Cardiac hypertrophy and subsequent heart failure triggered by chronic hypertension represent major challenges for cardiovascular research. Beyond neurohormonal and myocyte signaling pathways, growing evidence suggests inflammatory signaling pathways as therapeutically targetable contributors to this process....

journal_title：Circulation

authors： Heymans S,Corsten MF,Verhesen W,Carai P,van Leeuwen RE,Custers K,Peters T,Hazebroek M,Stöger L,Wijnands E,Janssen BJ,Creemers EE,Pinto YM,Grimm D,Schürmann N,Vigorito E,Thum T,Stassen F,Yin X,Mayr M,de Windt LJ,

更新日期：2013-09-24 00:00:00

abstract：:Malignant hyperthermia is a disease resulting from defective cellular membranes, usually presenting as drug-induced pyrexic crises. We describe four patients with life threatening ventricular arrhythmias or chest pain in the absence of pyrexic crises. Three presented with life threatening arrhythmias and the fourth wi...

journal_title：Circulation

authors： Huckell VF,Staniloff HM,Britt BA,Waxman MB,Morch JE

更新日期：1978-11-01 00:00:00

abstract：:Echocardiographic measurements of the left ventricle were used to define rates of circumferential fiber lengthening at the endocardium and midwall in 12 normal subjects and six patients with concentric left ventricular hypertrophy (wall thickness 11 to 16 mm). There was no difference in chamber size and systolic short...

journal_title：Circulation

authors： Shimizu G,Conrad CH,Gaasch WH

更新日期：1987-01-01 00:00:00

abstract：:Depression of myocardial conduction velocity can be an important mechanism of action of antiarrhythmic drugs but it can also facilitate arrhythmogenesis. We used lidocaine in an anesthetized canine preparation to address the hypothesis that drug-induced rate-dependent conduction velocity depression causes ventricular ...

journal_title：Circulation

authors： Anderson KP,Walker R,Lux RL,Ershler PR,Menlove R,Williams MR,Krall R,Moddrelle D

更新日期：1990-03-01 00:00:00

abstract：BACKGROUND:Little information is available regarding the occurrence of perioperative and late cardiac events in women with vascular disease. The current study was performed to examine whether sex-specific differences exist in these outcomes in a large population of vascular surgery patients and to determine the value o...

journal_title：Circulation

authors： Hendel RC,Chen MH,L'Italien GJ,Newell JB,Paul SD,Eagle KA,Leppo JA

更新日期：1995-02-15 00:00:00

abstract：BACKGROUND:Health-related quality-of-life instruments have become important measures of early health outcomes after cardiac surgery. The relationship between quality of life after recovery from surgery and subsequent long-term survival has not previously been explored. Our objective was to determine whether the Duke Ac...

journal_title：Circulation

authors： Koch CG,Li L,Lauer M,Sabik J,Starr NJ,Blackstone EH

更新日期：2007-02-13 00:00:00

abstract：:The concept of plaque stabilization was developed to explain how lipid lowering could decrease adverse coronary events without a substantial reduction in the regression of atherosclerosis. Plaques were stabilized by reducing serum cholesterol leading to several favorable pathobiological changes in the vessel wall of l...

journal_title：Circulation

authors： Ambrose JA,Martinez EE

更新日期：2002-04-23 00:00:00

abstract：BACKGROUND:The relationship between intake of fruits and vegetables (F/V) during young adulthood and coronary atherosclerosis later in life is unclear. METHODS AND RESULTS:We studied participants of the Coronary Artery Risk Development in Young Adults (CARDIA) study, a cohort of young, healthy black and white individu...

journal_title：Circulation

authors： Miedema MD,Petrone A,Shikany JM,Greenland P,Lewis CE,Pletcher MJ,Gaziano JM,Djousse L

更新日期：2015-11-24 00:00:00

abstract：BACKGROUND:Venous coronary artery bypass grafts (CABGs) are prone to accelerated atherosclerosis. In atherosclerotic diseases, serum C-reactive protein (CRP) levels have become an important diagnostic and prognostic marker. The origin of CRP in this setting remains to be elucidated. METHODS AND RESULTS:Monoclonal anti...

journal_title：Circulation

authors： Jabs WJ,Theissing E,Nitschke M,Bechtel JF,Duchrow M,Mohamed S,Jahrbeck B,Sievers HH,Steinhoff J,Bartels C

更新日期：2003-09-23 00:00:00

abstract：BACKGROUND:This multicenter trial was conducted to determine the efficacy and safety of pimobendan, an inotropic agent with calcium-sensitizing properties and activity as a phosphodiesterase inhibitor, in patients with heart failure. METHODS AND RESULTS:One hundred ninety-eight ambulatory patients with symptoms of mod...

journal_title：Circulation

authors： Kubo SH,Gollub S,Bourge R,Rahko P,Cobb F,Jessup M,Brozena S,Brodsky M,Kirlin P,Shanes J

更新日期：1992-03-01 00:00:00

abstract：BACKGROUND:Assessment of systemic right ventricular (RV) function is a key point in the follow-up of patients with transposition of the great arteries (TGA). Current echocardiographic assessment of RV function is at best an estimate, and cardiac magnetic resonance (CMR) is considered the gold standard. However, this te...

journal_title：Circulation

authors： Salehian O,Schwerzmann M,Merchant N,Webb GD,Siu SC,Therrien J

更新日期：2004-11-16 00:00:00

abstract：BACKGROUND:Coronary heart disease (CHD) is the leading cause of morbidity and mortality in persons with type 2 diabetes mellitus (T2DM). Electron-beam computed tomography (EBCT) detects coronary artery calcium (CAC), a marker of atherosclerotic plaque. Few studies have described EBCT-defined CHD among ethnic minorities...

journal_title：Circulation

authors： Araneta MR,Barrett-Connor E

更新日期：2004-11-02 00:00:00

abstract：BACKGROUND:Previous studies suggest that the antifibrillatory action of class I and III drugs is due to prolongation of the atrial wavelength. The aim of the present study was to directly evaluate the electrophysiological action of antifibrillatory drugs in a goat model of chronic atrial fibrillation (AF). METHODS AND...

journal_title：Circulation

authors： Wijffels MC,Dorland R,Mast F,Allessie MA

更新日期：2000-07-11 00:00:00

abstract：BACKGROUND:We tested the hypothesis that combined cyclooxygenase-1 (COX-1) and prostacyclin synthase (PGIS) gene transfer selectively augments prostacyclin production without a concurrent overproduction of other prostanoids. METHODS AND RESULTS:ECV304 cells were transfected with bicistronic pCOX-1/PGIS versus pCOX-1 o...

journal_title：Circulation

authors： Shyue SK,Tsai MJ,Liou JY,Willerson JT,Wu KK

更新日期：2001-04-24 00:00:00

abstract：BACKGROUND:Timely primary percutaneous coronary intervention (PPCI) cannot be offered to all patients with ST-segment-elevation myocardial infarction (STEMI). Pharmaco-invasive (PhI) strategy has been proposed as a valuable alternative for eligible patients with STEMI. We conducted a randomized study to compare the eff...

journal_title：Circulation

authors： Pu J,Ding S,Ge H,Han Y,Guo J,Lin R,Su X,Zhang H,Chen L,He B,EARLY-MYO Investigators.

更新日期：2017-10-17 00:00:00

abstract：BACKGROUND:Although lipoprotein(a) (Lp[a]) is a risk factor for atherosclerosis, no study has documented the effects of Lp(a) on angiogenesis. In this study, we examined collateral formation in peripheral arterial disease (PAD) model in Lp(a) transgenic mice. In addition, we examined the feasibility of gene therapy by ...

journal_title：Circulation

authors： Morishita R,Sakaki M,Yamamoto K,Iguchi S,Aoki M,Yamasaki K,Matsumoto K,Nakamura T,Lawn R,Ogihara T,Kaneda Y

更新日期：2002-03-26 00:00:00

abstract：BACKGROUND:Exercise stimulates the vascular response in pathological conditions, including ischemia; however, the molecular mechanisms by which exercise improves the impaired hypoxia-induced factor (HIF)-1 alpha-mediated response to hypoxia associated with aging are poorly understood. Here, we report that swimming trai...

journal_title：Circulation

authors： Cheng XW,Kuzuya M,Kim W,Song H,Hu L,Inoue A,Nakamura K,Di Q,Sasaki T,Tsuzuki M,Shi GP,Okumura K,Murohara T

更新日期：2010-08-17 00:00:00

abstract：BACKGROUND:Cyclooxygenase (COX)-2 expression in the heart increases after myocardial infarction (MI). In murine models of MI, COX-2 inhibition preserves left ventricular dimensions and function. We studied the effect of selective COX-2 inhibition on left ventricular remodeling and function after MI in a pig model. MET...

journal_title：Circulation

authors： Timmers L,Sluijter JP,Verlaan CW,Steendijk P,Cramer MJ,Emons M,Strijder C,Gründeman PF,Sze SK,Hua L,Piek JJ,Borst C,Pasterkamp G,de Kleijn DP

更新日期：2007-01-23 00:00:00

abstract：:Medical treatment of heart disease has improved significantly in the past 30 years. The spectacular change in the natural history of rheumatic heart disease is apparent from a 1948 article that reported that 42% of children with rheumatic heart disease died of rheumatic infection or bacterial endocarditis. Antibiotics...

journal_title：Circulation

authors： Ross RS

更新日期：1979-12-01 00:00:00

abstract：BACKGROUND:Diabetes mellitus is a predictor of morbidity and mortality in patients with heart failure. The effect of angiotensin-converting enzyme (ACE) inhibitors on the prevention of diabetes in patients with left ventricular dysfunction is unknown. The aim of this retrospective study was to assess the effect of the ...

journal_title：Circulation

authors： Vermes E,Ducharme A,Bourassa MG,Lessard M,White M,Tardif JC,Studies Of Left Ventricular Dysfunction.

更新日期：2003-03-11 00:00:00

abstract：:Coronal, horizontal, and sagittal sections through the mid-line are excellent ways of depicting the anatomical position of the aortic root and for studying its topographical relationship to the surrounding vascular structures. Minimal radiographic abnormalities or no abnormalities at all may be present with an enlarge...

journal_title：Circulation

authors： Viamote M,Camacho M,Cahill DR,Viamonte M,Mori K

更新日期：1975-02-01 00:00:00

abstract：BACKGROUND:The effect of effective refractory period (ERP) shortening on the vulnerability and characteristics of induced functional reentry in the ventricle remain poorly defined. We hypothesized that ERP shortening increases ventricular vulnerability to reentry and accelerates its rate, as is the case in the atrium. ...

journal_title：Circulation

authors： Uchida T,Yashima M,Gotoh M,Qu Z,Garfinkel A,Weiss JN,Fishbein MC,Mandel WJ,Chen PS,Karagueuzian HS

更新日期：1999-02-09 00:00:00

abstract：BACKGROUND:Coxsackieviruses B (CBVs) are dominant causative agents in myocarditis and are associated with pathogenesis is some cases of dilated cardiomyopathy, a clinical entity with a poor survival without heart transplantation. METHODS AND RESULTS:In vitro, the antiviral agent WIN 54 954 was shown to inhibit replica...

journal_title：Circulation

authors： Fohlman J,Pauksen K,Hyypiä T,Eggertsen G,Ehrnst A,Ilbäck NG,Friman G

更新日期：1996-11-01 00:00:00

abstract：BACKGROUND:Previous studies have demonstrated that synchronized coronary venous retroperfusion (SRP) can restore blood flow to the ischemic myocardium, resulting in infarct size reduction and improvement of the left ventricular function. Despite the nutritive blood flow achieved by SRP being relatively limited, SRP has...

journal_title：Circulation

authors： Wakida Y,Nordlander R,Kobayashi S,Kar S,Haendchen R,Corday E

更新日期：1993-11-01 00:00:00