Can the same edge-detection algorithm be applied to on-line and off-line analysis systems? Validation of a new cinefilm-based geometric coronary measurement software.

abstract：:Age is a recognized risk factor for coronary artery disease, but the relationship between age and silent ischemia is not well understood. We analyzed the data from 35 rest/stress radionuclide ventriculography examinations in patients with documented ischemic coronary artery disease who had experienced 1 mm ST segment ...

journal_title：American heart journal

authors： Miller PF,Sheps DS,Bragdon EE,Herbst MC,Dalton JL,Hinderliter AL,Koch GG,Maixner W,Ekelund LG

更新日期：1990-07-01 00:00:00

abstract：:Three cases of apical left ventricular hypertrophy demonstrating a sequestered small left ventricular apical cavity with complete systolic and partial diastolic intraventricular obstruction are described. Doppler studies revealed that flow from the apical chamber is aborted during early systole with further emptying d...

journal_title：American heart journal

authors： Zoghbi WA,Haichin RN,Quinones MA

更新日期：1988-12-01 00:00:00

abstract：BACKGROUND:Procedural volume has been shown to be associated with outcome in cardiac catheterization and intervention in adults. The impact of center-level factors (such as volume) and their interaction with subject- and procedure-level factors on outcome after cardiac catheterization in children is not well described....

journal_title：American heart journal

authors： O'Byrne ML,Glatz AC,Shinohara RT,Jayaram N,Gillespie MJ,Dori Y,Rome JJ,Kawut S

更新日期：2015-06-01 00:00:00

abstract：:The purpose of this study was to determine whether myocardium salvaged by reperfusion following coronary occlusion could respond to inotropic stimulation by dopamine. Mongrel dogs underwent a 2-hour occlusion of the proximal left anterior descending coronary artery, followed by reperfusion for 5 or 28 hours. Dopamine ...

journal_title：American heart journal

authors： Ellis SG,Wynne J,Braunwald E,Henschke CI,Sandor T,Kloner RA

更新日期：1984-01-01 00:00:00

abstract：BACKGROUND:Although sex differences exist in the management of acute coronary syndromes, less is known about the management and outcomes of women and men with suspected coronary artery disease being evaluated with noninvasive testing (NIT). METHODS:We investigated sex-based differences in NIT results and subsequent cl...

journal_title：American heart journal

authors： Pagidipati NJ,Coles A,Hemal K,Lee KL,Dolor RJ,Pellikka PA,Mark DB,Patel MR,Litwin SE,Daubert MA,Shah SH,Hoffmann U,Douglas PS,PROMISE Investigators.

更新日期：2019-02-01 00:00:00

abstract：:The incidence and prognosis of acute coronary reocclusion occurring after patients had left the catheterization laboratory following a successful percutaneous transluminal coronary angioplasty (PTCA) procedure and the temporal relation of this event to the discontinuation of systemic heparin administration were analyz...

journal_title：American heart journal

authors： Gabliani G,Deligonul U,Kern MJ,Vandormael M

更新日期：1988-09-01 00:00:00

abstract：OBJECTIVE:The aim of this study is to examine ethnic differences in depressive symptoms and antidepressant treatment in a cohort of patients undergoing diagnostic coronary angiography. BACKGROUND:Coronary heart disease (CHD) is the leading cause of mortality in the United States, with an excess of mortality in African...

journal_title：American heart journal

authors： Waldman SV,Blumenthal JA,Babyak MA,Sherwood A,Sketch M,Davidson J,Watkins LL

更新日期：2009-01-01 00:00:00

abstract：:In 10 treated and 2 control dogs, the short-term effects of intravenous propafenone (2 mg/kg/10 minutes, followed by 1 mg/min [n = 2] or 25 micrograms/kg/min [n = 8]) on the internal ventricular defibrillation energy requirements (DER) were investigated. Multiple stored energy levels were randomly tested and the perce...

journal_title：American heart journal

authors： Peters W,Gang ES,Okazaki H,Solingen S,Kobayashi Y,Karagueuzian HS,Mandel WJ

更新日期：1991-11-01 00:00:00

abstract：BACKGROUND:l-arginine is a commonly consumed dietary conditional essential amino acid found in food items and supplements, which is closely related to asymmetric dimethylarginine (ADMA) and symmetric dimethylarginine (SDMA). l-arginine is thought to increase nitric oxide and be cardioprotective, whereas ADMA and SDMA m...

journal_title：American heart journal

authors： Au Yeung SL,Lin SL,Lam HS,Schooling CM

更新日期：2016-12-01 00:00:00

abstract：:Intramuscular lidocaine administration is known to produce blood concentration levels considered to be therapeutic for prevention of premature ventricular contractions. This double blind study was designed to study the effect of intramuscular lidocaine in the prevention of PVC's in acute myocardial infarction. Forty-s...

journal_title：American heart journal

authors： Singh JB,Kocot SL

更新日期：1976-04-01 00:00:00

abstract：BACKGROUND:Despite proved efficacy for either dalteparin or platelet glycoprotein IIb/IIIa blockade in improving clinical outcomes of patients with non-ST-segment elevation acute coronary syndromes, algorithms guiding concomitant therapy with these agents have not been devised. The purpose of this study was to assess a...

journal_title：American heart journal

authors： Kereiakes DJ,Kleiman NS,Fry E,Mwawasi G,Lengerich R,Maresh K,Burkert ML,Aquilina JW,DeLoof M,Broderick TM,Shimshak TM

更新日期：2001-03-01 00:00:00

abstract：BACKGROUND:In recent reports, human toll-like receptor (TLR) 8 mediates the antiviral response by recognizing single-stranded RNA. The inflammatory response against enteroviral (EV) RNA replication may play an important role in dilated cardiomyopathy (DCM). The purpose of this study was to determine whether TLR8 was ex...

journal_title：American heart journal

authors： Satoh M,Akatsu T,Ishikawa Y,Minami Y,Takahashi Y,Nakamura M

更新日期：2007-09-01 00:00:00

abstract：BACKGROUND:Cardiac pacing can be challenging after a Fontan operation, and limited data exist regarding pacing in adult Fontan patients. The objectives of our study were to determine risk factors for pacing and occurrence of device-related complications (DRCs) and pacemaker reinterventions. METHODS:We performed a retr...

journal_title：American heart journal

authors： Egbe AC,Huntley GD,Connolly HM,Ammash NM,Deshmukh AJ,Khan AR,Said SM,Akintoye E,Warnes CA,Kapa S

更新日期：2017-12-01 00:00:00

abstract：:Quantitation of coronary luminal diameter with a 20 MHz mechanically rotating intravascular ultrasound (IVUS) catheter was compared with orthogonal-view cineangiography by use of a semiautomated edge-detection algorithm in 48 patients undergoing coronary angioplasty. Quantitative comparison of 196 matched segments was...

journal_title：American heart journal

authors： De Scheerder I,De Man F,Herregods MC,Wilczek K,Barrios L,Raymenants E,Desmet W,De Geest H,Piessens J

更新日期：1994-02-01 00:00:00

abstract：BACKGROUND:Anemia is now recognized as being a common finding in CHF and is associated with increased mortality and morbidity. However, it is uncertain whether the anemia is actually causing the worse prognosis or is merely a marker of more severe cardiac disease. Previous intervention studies with subcutaneous (s.c.) ...

journal_title：American heart journal

authors： Palazzuoli A,Silverberg D,Iovine F,Capobianco S,Giannotti G,Calabrò A,Campagna SM,Nuti R

更新日期：2006-12-01 00:00:00

abstract：:Intracoronary streptokinase (SK) was administered to 11 patients with evolving acute transmural myocardial infarction 5.5 +/- 0.4 hours from the onset of symptoms. Ten patients (91%) had total coronary occlusion, and one had subocclusion of the vessel corresponding to the ECG site of infarction. Intracoronary nitrogly...

journal_title：American heart journal

authors： Cowley MJ,Hastillo A,Vetrovec GW,Hess ML

更新日期：1981-12-01 00:00:00

abstract：BACKGROUND:Angiotensin-converting enzyme inhibitors and angiotensin receptor blockers effectively reduce blood pressure in patients with renovascular disease (RVD); yet, randomized cardiovascular prevention trials of these drugs typically exclude individuals with this condition. PATIENTS AND METHODS:We studied the ass...

journal_title：American heart journal

authors： Hackam DG,Duong-Hua ML,Mamdani M,Li P,Tobe SW,Spence JD,Garg AX

更新日期：2008-09-01 00:00:00

abstract：BACKGROUND:We sought to systematically evaluate whether percutaneous revascularization is associated with additional clinical benefit in patients with renal artery stenosis (RAS) as compared with medical management alone. METHODS:We included randomized controlled trials that compared percutaneous revascularization in ...

journal_title：American heart journal

authors： Kumbhani DJ,Bavry AA,Harvey JE,de Souza R,Scarpioni R,Bhatt DL,Kapadia SR

更新日期：2011-03-01 00:00:00

abstract：:Selective blockade of the angiotensin II AT1 receptor represents a novel mechanism for interrupting the renin-angiotensin system without altering the potential benefits of AT2 receptor stimulation. This selective inhibition produces none of the disadvantages associated with reduced bradykinin metabolism and angiotensi...

journal_title：American heart journal

authors： Brooks DP,Ohlstein EH,Ruffolo RR Jr

更新日期：1999-09-01 00:00:00

abstract：BACKGROUND:Previous studies reported an impairment of nervous autonomic activity in patients with Duchenne muscular dystrophy (DMD). However, the relationship of the autonomic dysfunction to the impairment of cardiac mechanical function and of respiratory failure is not completely understood. METHODS:We evaluated card...

journal_title：American heart journal

authors： Lanza GA,Dello Russo A,Giglio V,De Luca L,Messano L,Santini C,Ricci E,Damiani A,Fumagalli G,De Martino G,Mangiola F,Bellocci F

更新日期：2001-05-01 00:00:00

abstract：:High blood pressure is the leading cause of preventable morbidity and mortality globally. Many patients remain on single-drug treatment with poor control, although guidelines recognize that most require combination therapy for blood pressure control. Our hypothesis is that a single-pill combination of 4 blood pressure...

journal_title：American heart journal

authors： Chow CK,Atkins ER,Billot L,Chalmers J,Hillis GS,Hay P,Neal B,Nelson M,Patel A,Reid CM,Schlaich M,Usherwood T,Webster R,Rodgers A

更新日期：2021-01-01 00:00:00

abstract：BACKGROUND:More than three fourths of patients with heart failure (HF) are 65 years and older, and older age is associated with worse symptoms and prognoses than is younger age. Reduced exercise capacity is a chief HF complaint and indicates poorer prognosis, especially among elderly persons, but the mechanisms underly...

journal_title：American heart journal

authors： Forman DE,Clare R,Kitzman DW,Ellis SJ,Fleg JL,Chiara T,Fletcher G,Kraus WE,HF-ACTION Investigators.

更新日期：2009-10-01 00:00:00

abstract：:The efficacy and safety of sotalol therapy for ventricular arrhythmias was evaluated in 133 patients with drug-refractory ventricular arrhythmias. All patients had baseline electrophysiologic studies before and after oral sotalol therapy. Sixty-six patients were discharged home, treated with sotalol (52 patients witho...

journal_title：American heart journal

authors： Lee RJ,Wong M,Siu A,Namekawa-Wong M,Epstein LM,Fitzpatrick AP,Grogin HR,Scheinman MM,Lesh MD

更新日期：1996-11-01 00:00:00

abstract：:To investigate the mechanisms of restenosis and detect useful interventions to prevent it, reliable quantitative measurements must be evaluated. Coronary arteries of domestic and minipigs (n = 18) were mechanically injured by balloon overstretching and killed at different intervals (2 to 25 weeks) after quantitative a...

journal_title：American heart journal

authors： Bonan R,Paiement P,Scortichini D,Cloutier MJ,Leung TK

更新日期：1993-12-01 00:00:00

abstract：:Repetitive 10-hour ECG recordings of 289 patients obtained within a year after myocardial infarction were analyzed for the presence of ventricular runs, and their association with various types of ventricular ectopic activity (VEA), average rate of premature ventricular complexes (PVCs), and coupling interval of PVCs ...

journal_title：American heart journal

authors： Thanavaro S,Kleiger RE,Miller JP,Province MA,Friedman E,Oliver GC

更新日期：1983-09-01 00:00:00

abstract：:To determine the prevalence and significance of exercise-induced localized perfusion defects in symptomatic patients with aortic valve disease, thallium-201 rest and exercise studies were performed in a consecutive series of 29 such patients prior to left heart catheterization with coronary arteriography. Eight patien...

journal_title：American heart journal

authors： Pfisterer M,Müller-Brand J,Bründler H,Cueni T

更新日期：1982-01-01 00:00:00

abstract：BACKGROUND:Current recommendations for antithrombotic therapy after drug-eluting stent (DES) implantation include prolonged dual antiplatelet therapy (DAPT) with aspirin and clopidogrel ≥12 months. However, the impact of such a regimen for all patients receiving any DES system remains unclear based on scientific eviden...

journal_title：American heart journal

authors： Feres F,Costa RA,Bhatt DL,Leon MB,Botelho RV,King SB 3rd,de Paula JE,Mangione JA,Salvadori D Jr,Gusmão MO,Castello H Jr,Nicolela E Jr,Perin MA,Devito FS,Marin-Neto JA,Abizaid A

更新日期：2012-12-01 00:00:00

abstract：BACKGROUND:Pacing leads with a small electrode surface for high-impedance stimulation have been shown to prolong pacemaker longevity, but no sufficient data is available on the safety and feasibility of a defibrillation lead with this novel design. METHODS:We evaluated the clinical performance of a tined, steroid-elut...

journal_title：American heart journal

authors： Vollmann D,Ahern T,Gerritse B,Canby RC,Zenker D,Binner L,Kimber SK,Unterberg C,Worldwide Medtronic Model 6944 Investigators.

更新日期：2003-12-01 00:00:00

abstract：:Mortality rates for acute myocardial infarction (AMI) in the province of Manitoba were studied by a retrospective, randomized survey of urban and rural hospital records. Urban hospitals had formal coronary care unit (CCU). Selected rural hospitals lacked CCUs but usually possessed portable monitoring and defibrillatio...

journal_title：American heart journal

authors： Morris AL,Nernberg V,Roos NP,Henteleff P,Roos L Jr

更新日期：1983-01-01 00:00:00

abstract：:Left ventricular angiography frequently produces one or more premature atrial or ventricular contractions which may make quantitative volume analysis unreliable. Three hundred left ventricular power injections were analyzed and found to produce premature ventricular contractions (PVC's) in 28 per cent of injections an...

journal_title：American heart journal

authors： Caldwell JH,Kennedy JW

更新日期：1977-02-01 00:00:00