Characterization of chronically implanted ventricular endocardial pacing leads.

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：BACKGROUND:The Amplatzer septal occluder (ASO) allows the percutaneous closure of small to very large atrial septal defects (ASDs). The CardioSEAL/STARflex (CS/SF) can be used only for closure of small to moderate ASDs (stretch size up to 18 mm). These 2 devices are widely used in clinical practice. Therefore, a compar...

journal_title：American heart journal

authors： Butera G,Carminati M,Chessa M,Delogu A,Drago M,Piazza L,Giamberti A,Frigiola A

更新日期：2004-09-01 00:00:00

abstract：BACKGROUND:AutoCapture (AC) is a programmable feature that enables the pacemaker to both track the capture threshold and automatically adjust the output on a beat-by-beat basis. Although AC safely and significantly reduces the current drainage, some authors have argued that the longevity benefit of such a system is ove...

journal_title：American heart journal

authors： Ribeiro AL,Rincón LG,Oliveira BG,Vinha CR,Melatto D,Torres AA,Barros VC,Levine PA

更新日期：2004-01-01 00:00:00

abstract：:Our understanding of the pathogenesis of congestive heart failure (CHF) has improved remarkably in recent years. However, despite better knowledge and novel pharmaceutical strategies, this disease is still one of the most brutal killers in the Western world. The pathophysiology of CHF is complex, and much of our compr...

journal_title：American heart journal

authors： Malinin AI,O'Connor CM,Dzhanashvili AI,Sane DC,Serebruany VL

更新日期：2003-03-01 00:00:00

abstract：OBJECTIVE:The purpose of this study was to estimate the cost-effectiveness of beta-blocker therapy with either metoprolol or carvedilol in addition to conventional therapy for patients with heart failure (HF) in Canada. DESIGN:A Markov simulation was used to estimate the costs and life expectancy for treating patients...

journal_title：American heart journal

authors： Levy AR,Briggs AH,Demers C,O'Brien BJ

更新日期：2001-09-01 00:00:00

abstract：:We aimed to investigate long-term (≥5 years) outcomes of percutaneous coronary intervention (PCI) versus coronary artery bypass grafting (CABG) for left main coronary artery disease (LMCAD) using a meta-analysis from updated published randomized trials. Our data showed that the risk of all-cause death as well as cardi...

journal_title：American heart journal

authors： Kuno T,Ueyama H,Rao SV,Cohen MG,Tamis-Holland JE,Thompson C,Takagi H,Bangalore S

更新日期：2020-09-01 00:00:00

abstract：BACKGROUND:The aim of this study was to describe the effect of intravenous metoprolol on the intensity of chest pain before hospital admission in patients with suspected acute myocardial infarction AMI). METHODS AND RESULTS:Two hundred sixty-two patients with acute chest pain and suspected AMI were randomly assigned b...

journal_title：American heart journal

authors： Gardtman M,Dellborg M,Brunnhage C,Lindkvist J,Waagstein L,Herlitz J

更新日期：1999-05-01 00:00:00

abstract：BACKGROUND:The TRANSFER-AMI study demonstrated that early routine percutaneous coronary intervention post-fibrinolysis (pharmacoinvasive strategy) is superior to conservative management for ST-elevation myocardial infarction. However, it is not clear whether treatment efficacy differs between men and women. METHODS:In...

journal_title：American heart journal

authors： Bhan V,Cantor WJ,Yan RT,Mehta SR,Morrison LJ,Heffernan M,Fitchett D,Džavík V,Ducas J,Borgundvaag B,Cohen EA,Goodman SG,Yan AT

更新日期：2012-09-01 00:00:00

abstract：:To assess the effects of standard therapeutic interventions on the total ischemic burden, 86 patients with stable angina underwent 48 hours of ambulatory ST segment monitoring and treadmill exercise testing before and at a mean of 10 weeks after coronary artery bypass surgery (CABG) (group 1, N = 46) or percutaneous t...

journal_title：American heart journal

authors： Mulcahy D,Keegan J,Phadke K,Wright C,Sparrow J,Purcell H,Fox K

更新日期：1992-03-01 00:00:00

abstract：BACKGROUND:Myocardial infarction (MI) with non-obstructive coronary arteries (MINOCA) is a recently recognized condition where biomarkers and prognosis are less well studied than in MI with obstructive coronary artery disease (MI-CAD). We therefore aimed to investigate the one-year prognostic value of high-sensitivity ...

journal_title：American heart journal

authors： Hjort M,Lindahl B,Baron T,Jernberg T,Tornvall P,Eggers KM

更新日期：2018-06-01 00:00:00

abstract：:Two elderly patients with coronary heart disease, chronic pulmonary disease, and complex atrial arrhythmias are presented. The suction electrode technique for right atrium monophasic action potential recording was used. This recording allows better analysis of the atrial arrhythmias and estimates the stability of foca...

journal_title：American heart journal

authors： Cotoi S,Dragulescu SI

更新日期：1975-08-01 00:00:00

abstract：:Percutaneous transluminal coronary recanalization, a new therapeutic procedure used in acute myocardial infarction, offers significant reduction in mortality, as well as more effective limitation of the zone of infarction than has been possible with other pharmacologic treatment employed in the past. The risk of coron...

journal_title：American heart journal

authors： Rutsch W,Schartl M,Mathey D,Kuck K,Merx W,Dörr R,Rentrop P,Blanke H

更新日期：1981-12-01 00:00:00

abstract：:We evaluated the use of simple balloon overinflation to induce neointimal hyperplasia in a porcine model of coronary artery restenosis. By using standard percutaneous transluminal coronary angioplasty techniques, left anterior descending (LAD) and/or left circumflex (LCX) coronary arteries of either juvenile feeder pi...

journal_title：American heart journal

authors： Humphrey WR,Simmons CA,Toombs CF,Shebuski RJ

更新日期：1994-01-01 00:00:00

abstract：:Acute myocardial infarction, particularly of the inferior wall, is frequently associated with bradycardia and hypotension. This study reports the occurrence of transient bradycardia hypotension (TBH) (Bezold-Jarisch reflex) following thrombolytic therapy with intravenous streptokinase. Of the 52 patients, 42 had succe...

journal_title：American heart journal

authors： Koren G,Weiss AT,Ben-David Y,Hasin Y,Luria MH,Gotsman MS

更新日期：1986-09-01 00:00:00

abstract：:Quinidine serum levels and pharmacokinetic data were assessed during steady state therapy with oral quinidine sulfate in 19 hospitalized patients who were being treated for ventricular arrhythmias. A new high performance liquid chromatography assay was employed. Four patients were studied both after the first dose of ...

journal_title：American heart journal

authors： Carliner NH,Crouthamel WG,Fisher ML,Mugmon MA,Vassar DL,Narang PK,Plotnick GD

更新日期：1979-12-01 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：:Cardiac arrhythmias arise from disturbances in the functioning of the specific ion channels that normally control excitation or from the functional expression of previously latent channels. Antiarrhythmic agents act by blocking the membrane sodium, potassium, and calcium channels, but no agent has exclusive action on ...

journal_title：American heart journal

authors： Grant AO Jr

更新日期：1992-04-01 00:00:00

abstract：BACKGROUND:Pregnancy is increasingly common in women with congenital heart disease (CHD), but little is known about long-term cardiovascular outcome after pregnancy in these patients. We studied the incidence of cardiovascular events 1-year postpartum and compared cardiac function prepregnancy and 1-year postpartum in ...

journal_title：American heart journal

authors： Kampman MA,Balci A,Groen H,van Dijk AP,Roos-Hesselink JW,van Melle JP,Sollie-Szarynska KM,Wajon EM,Mulder BJ,van Veldhuisen DJ,Pieper PG,ZAHARA II investigators.

更新日期：2015-02-01 00:00:00

abstract：BACKGROUND:Experimental studies suggest that metabolic myocardial support by intravenous (IV) glucose, insulin, and potassium (GIK) reduces ischemia-induced arrhythmias, cardiac arrest, mortality, progression from unstable angina pectoris to acute myocardial infarction (AMI), and myocardial infarction size. However, tr...

journal_title：American heart journal

authors： Selker HP,Beshansky JR,Griffith JL,D'Agostino RB,Massaro JM,Udelson JE,Rashba EJ,Ruthazer R,Sheehan PR,Desvigne-Nickens P,Rosenberg YD,Atkins JM,Sayah AJ,Aufderheide TP,Rackley CE,Opie LH,Lambrew CT,Cobb LA,Macleod BA

更新日期：2012-03-01 00:00:00

abstract：:The effects of two regimens for the initiation of amiodarone therapy were compared in 92 patients with inducible sustained ventricular tachycardia (VT) at baseline electrophysiologic testing. Two groups of 46 patients each received a total of 16.8 gm of oral amiodarone before follow-up electrophysiologic testing. Grou...

journal_title：American heart journal

authors： Summitt J,Morady F,Kadish A

更新日期：1992-08-01 00:00:00

abstract：BACKGROUND:Despite the known benefits of cardiac rehabilitation in patients with coronary artery disease, referral rates to rehabilitation programs remain low. We determined the incidence and determinants of cardiac rehabilitation referral rates for patients undergoing percutaneous coronary intervention (PCI). METHODS...

journal_title：American heart journal

authors： Aragam KG,Moscucci M,Smith DE,Riba AL,Zainea M,Chambers JL,Share D,Gurm HS

更新日期：2011-03-01 00:00:00

abstract：:To test the hypothesis that elevated plasma levels of natriuretic peptides may serve to identify patients with left ventricular (LV) dysfunction, we assessed the predictive diagnostic value of natriuretic peptide levels, in addition to clinical and electro-cardiographic risk factors, as noninvasive indicators of cardi...

journal_title：American heart journal

authors： Muders F,Kromer EP,Griese DP,Pfeifer M,Hense HW,Riegger GA,Elsner D

更新日期：1997-09-01 00:00:00

abstract：BACKGROUND:Afterload reduction decreases volume overload on the left ventricle and may thereby delay the need for valve replacement in chronic asymptomatic aortic regurgitation. The aims of this randomized double-blind, placebo-controlled trial were to examine short- and long-term hemodynamic effects of felodipine in c...

journal_title：American heart journal

authors： Søndergaard L,Aldershvile J,Hildebrandt P,Kelbaek H,Ståhlberg F,Thomsen C

更新日期：2000-04-01 00:00:00

abstract：BACKGROUND:Patients with non-ST-elevation myocardial infarction (NSTEMI) and three-vessel or left main coronary disease (3VD/LMD) have a high risk of long-term mortality when treated with a medical management strategy (MMS) compared with revascularization. METHODS:We evaluated patterns of use and patient features acro...

journal_title：American heart journal

authors： Harskamp RE,Wang TY,Bhatt DL,Wiviott SD,Amsterdam EA,Li S,Thomas L,de Winter RJ,Roe MT

更新日期：2014-03-01 00:00:00

abstract：:Out of 156 patients with stable coronary heart disease randomized to either an exercise intervention group or a control group, 41 had complete gas analysis data. Continuous gas exchange data, including the ventilatory threshold, and selected heart rates were determined initially and at 1 year. The mean attendance for ...

journal_title：American heart journal

authors： Sullivan M,Ahnve S,Froelicher VF,Meyers J

更新日期：1985-03-01 00:00:00

abstract：:Anesthetized dogs were cooled to a core body temperature of 26 degree C. or maintained at a body temperature of 37 degree C. during periods of 5 and 10 hours of LAD coronary artery occlusion. Subsequent macroscopic dehydrogenase enzyme mapping showed that ischemic injury was 25 per cent less after 5 hours of coronary ...

journal_title：American heart journal

authors： Abendschein DR,Tacker WA Jr,Babbs CF

更新日期：1978-12-01 00:00:00

abstract：BACKGROUND:The outpatient prognostic assessment of coronary artery disease (CAD) by exercise electrocardiography has limitations, including the feasibility of the test and its low positive predictive value in several clinical conditions. In the current study we investigated the safety, feasibility, and prognostic value...

journal_title：American heart journal

authors： Cortigiani L,Picano E,Coletta C,Chiarella F,Mathias W,Gandolfo N,De Alcantara M,Mazzoni V,Gensini GF,Landi P,Echo Persantine International Cooperative (EPIC) Study Group.,Echo Dobutamine International Cooperative (EDIC) Study Group

更新日期：2001-04-01 00:00:00

abstract：BACKGROUND:Clinical practice is discrepant regarding routine enlargement of the interatrial communication (IAC) in patients with right-sided atrioventricular valve atresia. We determined the percentage and risk factors of those who develop a restrictive IAC. METHODS:Medical records were reviewed for patients treated f...

journal_title：American heart journal

authors： Tzifa A,Gauvreau K,Geggel RL

更新日期：2007-12-01 00:00:00

abstract：:Angioscopy has been shown to provide more detailed information on lesion morphology before and after interventional procedures than angiography. Therefore to evaluate the effects of laser angioplasty, angioscopy was performed in five patients with peripheral or coronary vascular disease who underwent excimer laser ang...

journal_title：American heart journal

authors： Nakamura F,Kvasnicka J,Uchida Y,Geschwind HJ

更新日期：1992-12-01 00:00:00

abstract：BACKGROUND:Circulating mediators, including thromboxane A2, the vasoconstrictor, platelet aggregant, and smooth muscle mitogen, may contribute to the progression of vascular narrowing in primary pulmonary hypertension (PPH). METHODS:To further understand the contribution of thromboxane and to provide novel therapy for...

journal_title：American heart journal

authors： Langleben D,Christman BW,Barst RJ,Dias VC,Galiè N,Higenbottam TW,Kneussl M,Korducki L,Naeije R,Riedel A,Simonneau G,Hirsch AM,Rich S,Robbins IM,Oudiz R,McGoon MD,Badesch DB,Levy RD,Mehta S,Seeger W,Solèr M

更新日期：2002-05-01 00:00:00