What have we learned from in vitro intravascular ultrasound?

abstract：BACKGROUND:This report describes the long-term follow-up of transcatheter closure of patent ductus arteriosus (PDA) with 2 different modalities in 123 patients of diverse ages. METHODS AND RESULTS:Between October 1990 and August 1997, 123 patients underwent transcatheter PDA (1.9 to 7.5 mm) closure at a mean age of 6....

journal_title：American heart journal

authors： Janorkar S,Goh T,Wilkinson J

更新日期：1999-12-01 00:00:00

abstract：BACKGROUND:The APEX trial assessed the safety and efficacy of extended-duration thromboprophylaxis using betrixaban versus standard dosing of enoxaparin among hospitalized, acutely ill medical patients. The 80-mg betrixaban dose was halved to 40 mg among subjects with severe renal insufficiency and those receiving a co...

journal_title：American heart journal

authors： Gibson CM,Halaby R,Korjian S,Daaboul Y,Arbetter DF,Yee MK,Goldhaber SZ,Hull R,Hernandez AF,Lu SP,Bandman O,Leeds JM,Gold A,Harrington RA,Cohen AT,APEX Investigators.

更新日期：2017-03-01 00:00:00

abstract：BACKGROUND:Embolic events to the central nervous system are a major cause of morbidity and mortality in patients with infective endocarditis (IE). The appropriate role of valvular surgery in reducing such embolic events is unclear. The purpose of this study was to determine the relationship between the initiation of an...

journal_title：American heart journal

authors： Dickerman SA,Abrutyn E,Barsic B,Bouza E,Cecchi E,Moreno A,Doco-Lecompte T,Eisen DP,Fortes CQ,Fowler VG Jr,Lerakis S,Miro JM,Pappas P,Peterson GE,Rubinstein E,Sexton DJ,Suter F,Tornos P,Verhagen DW,Cabell CH,ICE In

更新日期：2007-12-01 00:00:00

abstract：BACKGROUND:Single nucleotide polymorphisms of vitamin K epoxide reductase complex subunit 1 (VKORC1) was reported to have association with arterial vascular disease. We investigated whether single nucleotide polymorphism of VKORC1 +2255 is associated with clinical outcomes among patients who underwent drug-eluting sten...

journal_title：American heart journal

authors： Suh JW,Baek SH,Park JS,Kang HJ,Chae IH,Choi DJ,Park HJ,Kim PJ,Seung KB,Kim HS

更新日期：2009-05-01 00:00:00

abstract：:The effects of amiodarone on delayed afterdepolarization (DAD) and triggered automaticity induced by low potassium (0.5 mEq/L) were evaluated on isolated rabbit right ventricular muscles, by means of standard microelectrode techniques. Triggered automaticity was induced in 6 of 10 muscles in the control group, in four...

journal_title：American heart journal

authors： Ohta M,Karagueuzian HS,Mandel WJ,Peter T

更新日期：1987-02-01 00:00:00

abstract：BACKGROUND:Cell adhesion molecules are key regulators of atherosclerotic plaque development, but circulating levels of soluble fragments, such as intercellular adhesion molecule (sICAM-1) and vascular cell adhesion molecule (sVCAM-1), have yielded conflicting associations with atherosclerotic cardiovascular disease (AS...

journal_title：American heart journal

authors： Ren HY,Khera A,de Lemos JA,Ayers CR,Rohatgi A

更新日期：2017-09-01 00:00:00

abstract：BACKGROUND:31-Phosphorus-magnetic resonance spectroscopy may provide pathophysiological insights into the high-energy phosphate metabolism of the myocardium as measured by phosphocreatine to adenosine triphosphate (PCr/ATP) ratio. Aim of the present study was to determine in vivo the relation between cardiac PCr/ATP ra...

journal_title：American heart journal

authors： Fragasso G,De Cobelli F,Spoladore R,Esposito A,Salerno A,Calori G,Montanaro C,Maranta F,Lattuada G,Margonato A,Del Maschio A,Perseghin G

更新日期：2011-07-01 00:00:00

abstract：:To identify a method for characterizing the dynamic behavior of ventricular arrhythmias at different heart rates, 201 consecutive patients with frequent premature ventricular contractions (PVCs) underwent two 24-hour electrocardiographic monitoring periods. The percentage of PVCs for each cycle length was calculated a...

journal_title：American heart journal

authors： Pitzalis MV,Mastropasqua F,Massari F,Passantino A,Forleo C,Luzzi G,Totaro P,De Nicolò M,Rizzon P

更新日期：1997-02-01 00:00:00

abstract：:Evaluation of pericardial effusion was attempted with computed tomography in 11 patients. The volume and distribution of pericardial fluid were assessed with satisfactory resolution and the nature of the fluid was estimated by the difference in x-ray transparency (CT numbers). The volume of pericardial fluid calculate...

journal_title：American heart journal

authors： Tomoda H,Hoshiai M,Furuya H,Oeda Y,Matsumoto S,Tanabe T,Tamachi H,Sasamoto H,Koide S,Kuribayashi S,Matsuyama S

更新日期：1980-06-01 00:00:00

abstract：BACKGROUND:Protease-activated receptor 1 antagonism with vorapaxar represents a novel strategy for platelet inhibition. In TRACER, vorapaxar was compared with placebo plus standard of care among 12,944 patients with non-ST-segment elevation acute coronary syndromes. We anticipated that most patients would have received...

journal_title：American heart journal

authors： Tricoci P,Lokhnygina Y,Huang Z,Van de Werf F,Cornel JH,Chen E,Wallentin L,Held C,Aylward PE,Moliterno DJ,Jennings LK,White HD,Armstrong PW,Harrington RA,Strony J,Mahaffey KW

更新日期：2014-12-01 00:00:00

abstract：:Symptoms of myocardial ischemia, such as chest pain (sometimes with anginal features), acute myocardial infarction, and segmental wall motion abnormalities (including left ventricular apical aneurysm), frequently occur in patients with Chagas' heart disease. Because these clinical findings occur in the presence of nor...

journal_title：American heart journal

authors： Torres FW,Acquatella H,Condado JA,Dinsmore R,Palacios IF

更新日期：1995-05-01 00:00:00

abstract：BACKGROUND:The purpose of this investigation was to quantify the amount of intralesional calcium detected by intravascular ultrasound (IVUS) compared with undecalcified histology in human arteries. This method preserves intralesional calcium and reduces sectioning artifacts, thereby providing an accurate measure of cal...

journal_title：American heart journal

authors： Kostamaa H,Donovan J,Kasaoka S,Tobis J,Fitzpatrick L

更新日期：1999-03-01 00:00:00

abstract：:We have explored the systolic time intervals of 52 patients with angina pectoris at the time of their hospitalization in our wards. Our results are in close agreement with published data, essentially indicating prolongation of the preejection time and shortening of the ejection time. These alterations of systolic time...

journal_title：American heart journal

authors： Randazzo A,Sardella F,Martinotti R,Daffara G,Parziale M,Cremonesi G

更新日期：1983-05-01 00:00:00

abstract：BACKGROUND:Troponin level elevations are common in patients with acute decompensated heart failure (ADHF), yet their prognostic value above and beyond traditional predictors of outcomes in heart failure is uncertain. METHODS:In the EFFECT study, we determined the association between cardiac troponin I and all-cause mo...

journal_title：American heart journal

authors： You JJ,Austin PC,Alter DA,Ko DT,Tu JV

更新日期：2007-04-01 00:00:00

abstract：:Ambulatory ECG recordings are routinely used to identify patients at increased risk of sudden cardiac death and to monitor changes in ventricular arrhythmias during antiarrhythmic drug therapy. The arrhythmia frequency established during the initial baseline has previously been reported to change during a second place...

journal_title：American heart journal

authors： Pratt CM,Francis M,Mahler S,Aogaichi K,Keus P,Young JB

更新日期：1988-10-01 00:00:00

abstract：BACKGROUND:Technetium Tc 99m gated single photon emission computed tomography (SPECT) has become the cornerstone of noninvasive risk stratification in patients with ischemic heart disease, but its role in patients with heart failure is not as well established. STUDY DESIGN:This study is a substudy of the Heart Failure...

journal_title：American heart journal

authors： Bensimhon DR,Adams GL,Whellan DJ,Pagnanelli RA,Trimble M,Lee BA,Lee KL,Ellis SJ,Kraus WE,Rendall DS,Iskandrian AE,O'Connor CM,Borges-Neto S,HF-ACTION Trial Investigators.

更新日期：2007-07-01 00:00:00

abstract：BACKGROUND:Bleeding and blood transfusion are associated with increased morbidity and mortality among patients with non-ST-segment elevation acute coronary syndromes (NSTE ACS); however, the economic consequences of these complications are not well defined. We sought to determine the relationship between bleeding, bloo...

journal_title：American heart journal

authors： Rao SV,Kaul PR,Liao L,Armstrong PW,Ohman EM,Granger CB,Califf RM,Harrington RA,Eisenstein EL,Mark DB

更新日期：2008-02-01 00:00:00

abstract：:To determine correlates of and recent trends in aspirin use in middle-age men and women, we analyzed data from population-based samples selected in four U.S. communities. Aspirin use (during a 2-week period preceding the study examination) was more prevalent in whites than in blacks (30% vs 11%; p < 0.001) and in men ...

journal_title：American heart journal

authors： Shahar E,Folsom AR,Romm FJ,Bisgard KM,Metcalf PA,Crum L,McGovern PG,Hutchinson RG,Heiss G

更新日期：1996-05-01 00:00:00

abstract：:Major depression is a common comorbidity associated with ischemic heart disease (IHD). There is growing evidence that psychological stress in general and depression in particular predispose to cardiovascular disease. Persons who have mental stress during daily life are at twice the risk of myocardial ischemia, and pat...

journal_title：American heart journal

authors： O'connor CM,Gurbel PA,Serebruany VL

更新日期：2000-10-01 00:00:00

abstract：BACKGROUND:The Total Occlusion Study of Canada (TOSCA) is a multicenter, randomized trial evaluating the effect of stenting with > =1 heparin-coated stent on long-term patency after percutaneous coronary intervention by balloon angioplasty of occluded coronary arteries. The purpose of the current study was to compare t...

journal_title：American heart journal

authors： Dzavik V,Carere RG,Mancini GB,Cohen EA,Catellier D,Anderson TE,Barbeau G,Lazzam C,Title LM,Berger PB,Labinaz M,Teo KK,Buller CE,Total Occlusion Study of Canada Investigators.

更新日期：2001-08-01 00:00:00

abstract：BACKGROUND:Few studies have investigated the clinical advantages of surgical correction with the morphologic left ventricle (MLV) instead of the morphologic right ventricle as a systemic ventricle (SV) in patients with congenital heart disease. METHODS:Twenty-four healthy control subjects (group A1), 6 patients with i...

journal_title：American heart journal

authors： Ohuchi H,Hiraumi Y,Tasato H,Kuwahara A,Chado H,Toyohara K,Arakaki Y,Yagihara T,Kamiya T

更新日期：1999-06-01 00:00:00

abstract：:We developed a new angiographic score of the extent of coronary disease (extent score), which we compared with conventional stenosis and vessel scores that emphasize the severity of stenosis. Scores were determined in 132 patients (29 women, 103 men with a mean age of 55 +/- 10 years) who underwent elective coronary a...

journal_title：American heart journal

authors： Sullivan DR,Marwick TH,Freedman SB

更新日期：1990-06-01 00:00:00

abstract：:In patients with essential hypertension, glomerular filtration rate remains normal or elevated, whereas renal blood flow tends to be lower, which results in an increased filtration fraction. The afferent (preglomerular) arteriolar resistance determines the fraction of the pressure that is transmitted to the glomerular...

journal_title：American heart journal

authors： Larochelle P

更新日期：1991-10-01 00:00:00

abstract：BACKGROUND:Coronary heart disease continues to be one of the most common chronic illnesses in the United States and most of the developed world. Clinicians and health authorities have interest in identifying individuals at increased risk of CHD. The Framingham Heart Study has over the years produced mathematical "healt...

journal_title：American heart journal

authors： D'Agostino RB,Russell MW,Huse DM,Ellison RC,Silbershatz H,Wilson PW,Hartz SC

更新日期：2000-02-01 00:00:00

abstract：BACKGROUND:Case fatality rates after acute myocardial infarction (MI) have decreased markedly over the last 3 decades. Some subgroups may have benefited more than others, but this hypothesis has not been evaluated in a large nationally representative cohort. Accordingly, we sought to assess long-term temporal trends in...

journal_title：American heart journal

authors： Wellenius GA,Mittleman MA

更新日期：2008-09-01 00:00:00

abstract：:Left ventricular (LV) adaptation to the hemodynamic load of pregnancy has been studied with load-sensitive ejection-phase indexes, but the results of these studies are conflicting. The aim of this study was to examine the effects of the hemodynamic load of pregnancy on the contractile state of the left ventricle by us...

journal_title：American heart journal

authors： Geva T,Mauer MB,Striker L,Kirshon B,Pivarnik JM

更新日期：1997-01-01 00:00:00

abstract：:Percutaneous transluminal balloon angioplasty for stenosis of the aorta was performed in 36 patients with Takayasu's arteritis (age range, 8 to 36 years; mean, 19.1 +/- 7.7 years). Balloon dilatation was successful in 34 patients and resulted in a decrease in the mean peak systolic pressure gradient (PSG) from 75.2 +/...

journal_title：American heart journal

authors： Tyagi S,Kaul UA,Nair M,Sethi KK,Arora R,Khalilullah M

更新日期：1992-10-01 00:00:00

abstract：BACKGROUND:In the setting of ST-segment elevation myocardial infarction, timely restoration of normal blood flow is associated with improved myocardial salvage and survival. Despite improvements in door-to-needle and door-to-balloon times, there remains an unmet need with respect to improved symptom-to-door times. A pr...

journal_title：American heart journal

authors： Gibson CM,Krucoff M,Kirtane AJ,Rao SV,Mackall JA,Matthews R,Saba S,Waksman R,Holmes D

更新日期：2014-10-01 00:00:00

abstract：BACKGROUND:This study was designed to determine if vertically transmitted HIV infection and maternal infection with HIV are associated with altered cardiovascular structure and function in utero. METHODS:Fetal echocardiography was performed in 173 fetuses of 169 HIV-infected mothers (mean gestational age, 33.0 weeks; ...

journal_title：American heart journal

authors： Hornberger LK,Lipshultz SE,Easley KA,Colan SD,Schwartz M,Kaplan S,Starc TJ,Ayres NA,Lai WW,Moodie DS,Kasten-Sportes C,Sanders SP

更新日期：2000-10-01 00:00:00

abstract：BACKGROUND:Female sex independently predicts bleeding risk after percutaneous coronary intervention (PCI). Bivalirudin is safer than abciximab plus heparin in patients with non-ST-segment elevation myocardial infarction (NSTEMI). Thus, a greater benefit of bivalirudin in women would be expected. METHODS:We performed a...

journal_title：American heart journal

authors： Mehilli J,Neumann FJ,Ndrepepa G,King L,Schulz S,Maimer Rodrigues da Cunha F,Jochheim D,Byrne RA,Hausleiter J,Ott I,Massberg S,Kastrati A,Pache J

更新日期：2013-04-01 00:00:00