Ventricular pacing threshold and refractoriness after defibrillation shocks in patients with implantable cardioverter-defibrillators.

abstract：:Affected members of early coronary pedigrees in Utah are at markedly increased risk for the development of clinical coronary heart disease (CHD). The relationship between the presence of coronary risk factors and the severity of angiographic coronary artery disease (CAD) in 53 members of high-risk Utah pedigrees was e...

journal_title：American heart journal

authors： Sharp SD,Williams RR,Hunt SC,Schumacher MC

更新日期：1992-02-01 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

abstract：:The records of 64 patients with progressive systemic sclerosis (PSS) were reviewed. More than 100 items from the patient's history, physical examination, and laboratory tests were encoded. A two-tailed Gehan's test was used to evaluate the effect of each variable on patient survival. Variables significant at the 0.05 ...

journal_title：American heart journal

authors： Wynn J,Fineberg N,Matzer L,Cortada X,Armstrong W,Dillon JC,Kinney EL

更新日期：1985-07-01 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:The impact of valve prosthesis-patient mismatch on long-term outcome after aortic valve replacement estimated by various variables such as projected indexed effective orifice area and internal geometric orifice area obtained from in vivo or in vitro published data is still controversial. METHODS:The effecti...

journal_title：American heart journal

authors： Florath I,Albert A,Rosendahl U,Ennker IC,Ennker J

更新日期：2008-06-01 00:00:00

abstract：BACKGROUND:The diagnosis of angina is challenging because it relies on symptom descriptions. Natural language processing (NLP) of the electronic medical record (EMR) can provide access to such information contained in free text that may not be fully captured by conventional diagnostic coding. OBJECTIVE:To test the hyp...

journal_title：American heart journal

authors： Pakhomov SS,Hemingway H,Weston SA,Jacobsen SJ,Rodeheffer R,Roger VL

更新日期：2007-04-01 00:00:00

abstract：:The prognostic significance of functional status has not been previously studied in the setting of acute myocardial infarction. We assessed the Karnofsky Performance Status (KPS) score, a simple functional status scale that is commonly used to categorize physical ability, in 849 patients with acute myocardial infarcti...

journal_title：American heart journal

authors： Brezinski D,Stone PH,Muller JE,Tofler GH,Davis V,Parker C,Hartley LH,Braunwald E

更新日期：1991-05-01 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：:Electrolyte balance has been regarded as a factor important to cardiovascular stability, particularly in congestive heart failure. Among the common electrolytes, the significance of magnesium has been debated because of difficulty in accurate measurement and other associated factors, including other electrolyte abnorm...

journal_title：American heart journal

authors： Douban S,Brodsky MA,Whang DD,Whang R

更新日期：1996-09-01 00:00:00

abstract：BACKGROUND:Chest pain in the absence of obstructive coronary artery disease (CAD) is common in women; it is frequently associated with debilitating symptoms and repeated evaluations and may be caused by coronary microvascular dysfunction. However, the prevalence and determinants of microvascular dysfunction in these wo...

journal_title：American heart journal

authors： Reis SE,Holubkov R,Conrad Smith AJ,Kelsey SF,Sharaf BL,Reichek N,Rogers WJ,Merz CN,Sopko G,Pepine CJ,WISE Investigators.

更新日期：2001-05-01 00:00:00

abstract：:Under electrophysiologic studies, 44 asymptomatic chagasic individuals were studied. The mean age was 39.9 years, with 26 being male. The surface ECG showed normal tracings in 12 patients, left anterior fascicular block in three, incomplete right bundle branch block in two, and right bundle branch block in 27 (isolate...

journal_title：American heart journal

authors： Pimenta J,Miranda M,Pereira CB

更新日期：1983-08-01 00:00:00

abstract：:Our experience with the use of five new antiarrhythmic drugs for treating life-threatening arrhythmias in children will be briefly reviewed. Prevention of recurrent episodes of atrial flutter with digoxin and local anesthetic antiarrhythmic drugs often is only moderately successful, benefiting 65% of patients. Amiodar...

journal_title：American heart journal

authors： Moak JP,Smith RT,Garson A Jr

更新日期：1987-01-01 00:00:00

abstract：:High degree AV block occurred in 144 of 843 patients consecutively admitted because of acute inferior myocardial infarction and was associated with more extensive myocardial damage and a higher mortality rate, as compared to those without AV block. Patients with power failure at the time of appearance of high degree A...

journal_title：American heart journal

authors： Tans AC,Lie KI,Durrer D

更新日期：1980-01-01 00:00:00

abstract：BACKGROUND:Recently, long (> or =20 mm) coronary stents were introduced for clinical use. They are intended as an alternative to multiple conventional stents to treat extensive dissections or suboptimal results of long lesions after balloon angioplasty. METHODS:In a total of 113 such consecutive vessels in 107 patient...

journal_title：American heart journal

authors： De Scheerder IK,Wang K,Kostopoulos K,Dens J,Desmet W,Piessens JH

更新日期：1998-08-01 00:00:00

abstract：:Thallium-201 redistribution pattern after exercise was related to rest and exercise left ventricular regional and global function, measured by radionuclide ventriculography, in 61 patients, 50 with coronary artery disease (CAD). Sixteen patients had exclusively transient thallium defects, suggesting ischemia: in this ...

journal_title：American heart journal

authors： Kirshenbaum HD,Okada RD,Boucher CA,Kushner FG,Strauss HW,Pohost GM

更新日期：1981-06-01 00:00:00

abstract：:The safety and therapeutic benefits of percutaneous transluminal coronary angioplasty of the left anterior descending coronary artery, the left circumflex coronary artery or both were assessed in 61 patients with chronic (greater than 3 months) occlusion of the right coronary artery. Recanalization of the right corona...

journal_title：American heart journal

authors： De Bruyne B,Renkin J,Col J,Wijns W

更新日期：1991-08-01 00:00:00

abstract：:A-II exerts its activity on various target tissues by binding to its receptors. The discovery of local RASs and A-II receptors within various tissues has generated interest in the clinical usefulness of RAS inhibition by directly blocking the action of A-II at the receptor level. Different A-II receptor subtypes have ...

journal_title：American heart journal

authors： Kang PM,Landau AJ,Eberhardt RT,Frishman WH

更新日期：1994-05-01 00:00:00

abstract：BACKGROUND:Because coronary artery disease (CAD) is a prevalent comorbidity in patients with low ejection function (EF), a number of patients with heart failure undergo diagnostic cardiac catheterization. The objective of this study was to develop a model to assist clinicians in determining the likelihood of CAD before...

journal_title：American heart journal

authors： Whellan DJ,Tuttle RH,Velazquez EJ,Shaw LK,Jollis JG,Ellis W,O'Connor CM,Califf RM,Borges-Neto S

更新日期：2006-08-01 00:00:00

abstract：BACKGROUND:Trimethylamine N-oxide (TMAO), a gut-related metabolite, is associated with heart failure (HF) outcomes. However, TMAO is the final product of a complex metabolic pathway (ie, choline/carnitine) that has never been entirely investigated in HF. The present study investigates a panel of metabolites involved in...

journal_title：American heart journal

authors： Israr MZ,Bernieh D,Salzano A,Cassambai S,Yazaki Y,Heaney LM,Jones DJL,Ng LL,Suzuki T

更新日期：2021-01-14 00:00:00

abstract：BACKGROUND:Today most patients with congenital heart disease survive childhood to be cared for by adult cardiologists. The number of physicians that should be trained to manage these lesions is unknown because we do not know the number of patients. METHODS:To answer this question, the expected numbers of infants with ...

journal_title：American heart journal

authors： Hoffman JI,Kaplan S,Liberthson RR

更新日期：2004-03-01 00:00:00

abstract：BACKGROUND:Gastrointestinal bleeding (GIB) after percutaneous coronary intervention (PCI) for acute coronary syndrome (ACS) and coronary artery disease (CAD) is associated with high morbidity and mortality. METHODS:The NIS database from 1998 to 2006 was used to identify 1,216,759 PCIs performed for ACS and CAD. We sou...

journal_title：American heart journal

authors： Shivaraju A,Patel V,Fonarow GC,Xie H,Shroff AR,Vidovich MI

更新日期：2011-12-01 00:00:00

abstract：:The antihypertensive efficacy, safety, and lipid effects of doxazosin, a selective alpha 1-inhibitor, were assessed in a general practice setting. Three hundred twenty-six patients were entered into the study, which involved three phases: (1) a 2-week baseline period, (2) an 8-week period in which patients received 1 ...

journal_title：American heart journal

authors： Naber FB

更新日期：1991-01-01 00:00:00

abstract：:We report five cases of OVT and review the literature on this disease. Among our patients OVT was not suspected clinically and was diagnosed by CT scanning or MRI. Ultrasound imaging, utilized in three cases, failed to detect OVT. Although this disease usually occurs after delivery, in two cases it was diagnosed befor...

journal_title：American heart journal

authors： Simons GR,Piwnica-Worms DR,Goldhaber SZ

更新日期：1993-09-01 00:00:00

abstract：BACKGROUND:A strategy using coronary artery calcium (CAC) screening to refine coronary heart disease risk assessment in moderately high risk (MHR) subjects (10-year risk 10%-20%) has been suggested. The potential impact of this strategy is unknown. METHODS:Coronary artery calcium screening strategies focused on MHR su...

journal_title：American heart journal

authors： Patel MJ,de Lemos JA,McGuire DK,See R,Lindsey JB,Murphy SA,Grundy SM,Khera A

更新日期：2009-06-01 00:00:00

abstract：:The effects of nadolol (N) and propranolol (P) were studied in atrial and ventricular tachyarrhythmias. Interpretation of the results should take into account the dependence of the arrhythmia on the sympathetic tone, and the drug effect on the sinus node frequency. The day/night ratio of the sinus rate is too sensitiv...

journal_title：American heart journal

authors： Coumel P,Escoubet B,Attuel P

更新日期：1984-10-01 00:00:00

abstract：:The acute effects of diltiazem on coronary reactive hyperemia were studied in 12 patients with flow-limiting coronary stenosis. Reactive hyperemia was elicited by injection of 8 ml contrast medium into the left coronary artery, while coronary sinus blood flow and left ventricular and aortic pressures were continuously...

journal_title：American heart journal

authors： Foult JM,Nitenberg A,Blanchet F,Zouiouèche S

更新日期：1986-12-01 00:00:00

abstract：BACKGROUND:Prior studies regarding the effect of racial status on post-myocardial infarction (MI) in subjects with diabetes have yielded conflicting results. We evaluated the effect of diabetes status on racial differences in post-MI mortality and morbidity for a 7-year period, from 1990 through 1997. METHODS:All pati...

journal_title：American heart journal

authors： Kamalesh M,Subramanian U,Ariana A,Sawada S,Peterson E

更新日期：2005-11-01 00:00:00

abstract：:The neutral alkaloid, ryanodine, has several actions on cardiac muscle. To delineate better its mode of action, we studied ryanodine's effect upon contracting cat papillary muscles under changing loading conditions and stimulation frequencies. We also studied ryanodine's physiologic and metabolic effects upon isolated...

journal_title：American heart journal

authors： Blumlein SL,Sievers R,Wikman-Coffelt J,Parmley WW,Rouleau JL

更新日期：1985-08-01 00:00:00

abstract：:An 84-year-old female who previously underwent repair of an atrial septal defect had evidence of increased reflectiveness of the posterior tricuspid anulus in the apical four-chamber view and the right ventricular two-chamber view. In addition, the inferior vena cava was dilated and during contrast echocardiography, c...

journal_title：American heart journal

authors： Mattleman S,Panidis I,Kotler MN,Mintz GS,Morganroth J,Ross J,Victor M

更新日期：1984-05-01 00:00:00

abstract：BACKGROUND:The latest cholesterol guidelines have shifted focus from achieving low-density lipoprotein cholesterol (LDL-C) targets toward statin use and intensity guided by atherosclerotic cardiovascular disease (ASCVD) risk. METHODS:Statin use and intensity were evaluated in 5,905 statin-eligible primary or secondary...

journal_title：American heart journal

authors： Navar AM,Wang TY,Li S,Robinson JG,Goldberg AC,Virani S,Roger VL,Wilson PWF,Elassal J,Lee LV,Peterson ED

更新日期：2017-11-01 00:00:00