Abstract：
:Eight patients with multifocal atrial tachycardia received 7 to 12 gm of magnesium sulfate intravenously over a 5-hour period. Potassium supplements were given initially or added later. Initial arterial blood gases showed mean pH 7.48 +/- 0.03, PcO2 39.7 torr, PO2 72 torr, HCO-3 29.8 +/- 4.5 mEq/L, and base excess 6.84 +/- 3.78 mEq/L. Initial serum magnesium correlated well with initial serum potassium. Three patients had subnormal levels of magnesium and potassium. The level of serum magnesium rose with an intravenous injection magnesium and serum potassium levels tended to fall unless they were supplanted with potassium. There were seven patients who retained more than 20 mEq of the infused magnesium. Multifocal atrial tachycardia was successfully converted to sinus rhythm or sinus tachycardia in seven patients. Multifocal atrial rhythm (at slow rate) persisted in one patient. Two patients with falling serum potassium levels required potassium supplements. Results of this study confirm that patients with multifocal atrial tachycardia respond favorably to parenteral magnesium and potassium. We believe that serum magnesium administered together with serum potassium stabilizes the ionic balance of atrial cells and thus prevents spontaneous ectopy.
journal_name
Am Heart Jjournal_title
American heart journalauthors
Iseri LT,Fairshter RD,Hardemann JL,Brodsky MAdoi
10.1016/0002-8703(85)90458-2subject
Has Abstractpub_date
1985-10-01 00:00:00pages
789-94issue
4eissn
0002-8703issn
1097-6744pii
0002-8703(85)90458-2journal_volume
110pub_type
杂志文章abstract：BACKGROUND:Controversy remains regarding whether gender differences exist in clinical management after exercise treadmill testing (ETT). METHODS:We studied 7,506 patients (49.8% women) without documented coronary heart disease referred for ETT from July 2001 to June 2004 in a community-based setting. We assessed the r...
journal_title：American heart journal
pub_type： 杂志文章
doi：10.1016/j.ahj.2008.03.022
更新日期：2008-08-01 00:00:00
abstract：:Echocardiography was performed on 26 patients with prosthetic Björk-Shiley aortic valves (BSAV). Technically satisfactory records were obtained in 22 patients. The systolic displacement of the valve disc varied from 1 to 1.8 cm. (mean, 1.4 cm.). Six patients developed valve dysfunction. Two patients had complete absen...
journal_title：American heart journal
pub_type： 杂志文章
doi：10.1016/s0002-8703(76)80215-3
更新日期：1976-03-01 00:00:00
abstract：:Antiarrhythmic drugs are often more effective in suppressing ventricular tachycardias than are background premature extrasystoles. The mechanism of action of these agents was examined by studies on the effects of lidocaine and quinidine on post-repolarization refractoriness of both basic and premature action potential...
journal_title：American heart journal
pub_type： 杂志文章
doi：10.1016/0002-8703(89)90222-6
更新日期：1989-11-01 00:00:00
abstract：BACKGROUND:Hepatocyte growth factor (HGF), a member of the endothelial-specific growth factors with the greatest mitogenic activity, may play a role in the protection and/or repair of vascular endothelial cells injured by atherosclerosis. As a result, plasma HGF concentration may increase in response to endothelial cel...
journal_title：American heart journal
pub_type： 杂志文章
doi：10.1067/mhj.2002.120151
更新日期：2002-02-01 00:00:00
abstract：:Saphenous vein graft (SVG) failure is a common finding in patients following coronary artery bypass graft (CABG) surgery. In the literature SVG failure rates have been reported from 25 to over 50% within 10 years. Although common, it remains unclear to what extent SVG failure affects clinical outcome, due to differenc...
journal_title：American heart journal
pub_type： 社论
doi：10.1016/j.ahj.2013.01.019
更新日期：2013-05-01 00:00:00
abstract：:Studies were conducted in 15 patients with coronary artery disease to determine if the type of pacing used to induce an extrasystole had a bearing on subsequent postextrasystolic potentiation (PESP) and if the fact that these were evaluated in jeopardized or nonjeopardized portions of the ventricle altered the ability...
journal_title：American heart journal
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/0002-8703(86)90149-3
更新日期：1986-02-01 00:00:00
abstract：BACKGROUND:Research has shown that vaccination with Streptococcus pneumoniae reduced the extent of atherosclerosis in experimental animal models. It is thought that phosphorylcholine lipid antigens in the S. pneumoniae cell wall induce the production of antibodies that cross-react with oxidized low-density lipoprotein,...
journal_title：American heart journal
pub_type： 杂志文章,多中心研究,随机对照试验
doi：10.1016/j.ahj.2016.04.003
更新日期：2016-07-01 00:00:00
abstract：:The effect of participation in cardiac rehabilitation on medical costs was determined by measuring hospitalization charges for cardiac admissions over a 3-year period in 580 post-coronary event patients (58% after coronary bypass surgery, 42% after myocardial infarction), of whom 230 entered a cardiac rehabilitation p...
journal_title：American heart journal
pub_type： 杂志文章
doi：10.1016/0002-8703(92)90696-s
更新日期：1992-04-01 00:00:00
abstract：:Of 178 transseptal left heart catheterizations performed, 173 successful cases are reported, with the use of a Swan-Ganz, flow-directed, balloon-tipped catheter. By means of a modified Brockenbrough technique, which is described in detail, a 10F Teflon tube (3.3 mm outside diameter) was inserted into the left atrium. ...
journal_title：American heart journal
pub_type： 杂志文章
doi：10.1016/0002-8703(85)90603-9
更新日期：1985-02-01 00:00:00
abstract：:Three kinds of torso surface isopotential maps (measured, simulated, and difference maps) were delineated at every 1.5 (or 3) msec. during the QRS duration from the 85 unipolar lead ECG's led from the surface of a cylindrical torso model filled with perfusate and containing a canine heart undergoing Langendorff's perf...
journal_title：American heart journal
pub_type： 杂志文章
doi：
更新日期：1976-08-01 00:00:00
abstract：:Nearly 800,000 of the 1 million patients hospitalized with acute heart failure (AHF) every year are initially treated by emergency physicians. Signs and symptoms are typically most severe at initial presentation, but with timely diagnostic and therapeutic management, rapid improvement can be achieved. As a direct resu...
journal_title：American heart journal
pub_type： 杂志文章,评审
doi：10.1016/j.ahj.2013.03.009
更新日期：2013-06-01 00:00:00
abstract：BACKGROUND:The presence of depression after an acute coronary syndrome (ACS) is associated with worse prognosis and lower adherence to risk-reducing behaviors. We reported earlier that an enhanced depression care intervention reduces depression symptoms and major adverse cardiac events. This study evaluates the impact ...
journal_title：American heart journal
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.ahj.2012.07.024
更新日期：2012-10-01 00:00:00
abstract：BACKGROUND:Half of patients with hypertension have poor blood pressure (BP) control. Recent models for treating hypertension have integrated disease monitoring and telephone-based interventions delivered in patients' homes. This study evaluated the costs of the Hypertension Intervention Nurse Telemedicine Study (HINTS)...
journal_title：American heart journal
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.ahj.2012.03.016
更新日期：2012-06-01 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
pub_type： 杂志文章,评审
doi：10.1067/mhj.2003.163
更新日期：2003-03-01 00:00:00
abstract：BACKGROUND:Dobutamine and exercise echocardiography are accepted as tests of comparable efficacy for the diagnosis of coronary artery disease. Although dobutamine has been classified as "exercise simulating," the mechanisms of ischemia with dobutamine and exercise have not been well studied. This study sought to compar...
journal_title：American heart journal
pub_type： 杂志文章
doi：10.1016/s0002-8703(98)70183-8
更新日期：1998-07-01 00:00:00
abstract：:Magnetic resonance imaging (MRI) produces high-resolution images of great-vessel anatomy in pediatric patients. In this study seven patients, aged 6 to 27 months were evaluated by using gated MRI and two-dimensional echocardiography 4 to 26 months after arterial switch operation for D-transposition of the great arteri...
journal_title：American heart journal
pub_type： 杂志文章
doi：10.1016/0002-8703(94)90486-3
更新日期：1994-08-01 00:00:00
abstract：BACKGROUND:Observational studies have shown apparently lower ischemic coronary disease risk in postmenopausal women receiving hormone replacement therapy (HRT). However, several recent studies have shown an increase in ischemic cardiac events when HRT is initiated in postmenopausal women with known coronary artery dise...
journal_title：American heart journal
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.ahj.2004.10.028
更新日期：2005-09-01 00:00:00
abstract：:MAT is an uncommon arrhythmia most often seen in elderly patients with chronic pulmonary disease who are critically ill due to acute respiratory or cardiac decompensation. Its importance lies in the fact that it is commonly mistaken for AF, since both disorders are characterized by narrow ventricular complexes, irregu...
journal_title：American heart journal
pub_type： 杂志文章,评审
doi：10.1016/0002-8703(89)90275-5
更新日期：1989-09-01 00:00:00
abstract：BACKGROUND:Although more than one million patients in the United States have permanent pacemakers, little is known about their cause of death. We evaluated the cause of death in 404 patients who died in the Mode Selection Trial (MOST). METHODS:In MOST, patients received a dual-chamber pacemaker randomly programmed to ...
journal_title：American heart journal
pub_type： 临床试验,杂志文章,多中心研究,随机对照试验
doi：10.1016/S0002-8703(03)00429-0
更新日期：2003-11-01 00:00:00
abstract：BACKGROUND:Treatment strategies, either invasive or noninvasive, for patients with unstable coronary artery disease still vary. There are no published studies comparing the strategies for health-related quality of life. METHODS:A total of 2457 patients with unstable coronary artery disease were randomized. We prospect...
journal_title：American heart journal
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/j.ahj.2003.11.026
更新日期：2004-07-01 00:00:00
abstract：:In order to properly advise cardiac patients in the regulation of their sexual activity, more basic physiologic information is needed concerning the cardiovascular effects of sexual intercourse. This study examined the effects of the male's position during sexual intercourse on heart rate and blood pressure responses....
journal_title：American heart journal
pub_type： 杂志文章
doi：10.1016/s0002-8703(76)80106-8
更新日期：1976-09-01 00:00:00
abstract：BACKGROUND AND OBJECTIVE:Embolization of atherothrombotic material is common during percutaneous coronary intervention (PCI) in acute myocardial infarction (MI). This may lead to distal vessel occlusion resulting in impaired myocardial perfusion, which is associated with larger infarct size and increased mortality. Adj...
journal_title：American heart journal
pub_type： 杂志文章
doi：10.1016/j.ahj.2005.11.010
更新日期：2006-03-01 00:00:00
abstract：:The hemodynamic effects of molsidomine were studied in 48 patients with acute myocardial infarction and compared with hemodynamic properties in a control group of 24 patients. The most pronounced decrease in pulmonary artery diastolic pressure occurs between 30 and 60 minutes after oral administration of 8 to 12 mg (n...
journal_title：American heart journal
pub_type： 临床试验,杂志文章
doi：10.1016/0002-8703(85)90688-x
更新日期：1985-03-01 00:00:00
abstract：:In this study of 14 patients hospitalized with a first event of myocardial infarction, maximal ST segment depression in precordial leads V2 and V3 was the sole ECG finding during chest pain in the first 24 hours of evolving posterolateral infarction, based upon further two-dimensional echocardiographic examination and...
journal_title：American heart journal
pub_type： 杂志文章
doi：10.1016/0002-8703(87)90916-1
更新日期：1987-05-01 00:00:00
abstract：BACKGROUND:Chronic periodontal infection is associated with an increased risk of coronary heart disease. Although the mechanism responsible for the relationship between periodontal disease and cardiovascular events is not fully understood, it is hypothesized that the chronic inflammatory burden of periodontal disease m...
journal_title：American heart journal
pub_type： 杂志文章
doi：10.1016/j.ahj.2005.10.002
更新日期：2006-01-01 00:00:00
abstract：BACKGROUND:Clinical outcomes and the effects of oral anticoagulants among patients with acute coronary syndrome (ACS) and either a history of or acute heart failure (HF) are largely unknown. We aimed to assess the relationship between prior HF or acute HF complicating an index ACS event and subsequent clinical outcomes...
journal_title：American heart journal
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.ahj.2014.12.022
更新日期：2015-04-01 00:00:00
abstract：:Radionuclide angiographic evaluation of LV performance at rest and during exercise in patients with AR have shown that an abnormal EF response to exercise may be observed in asymptomatic patients with normal resting LV function. The EF response to exercise has been correlated with a number of clinical and exercise mea...
journal_title：American heart journal
pub_type： 杂志文章
doi：10.1016/0002-8703(86)90019-0
更新日期：1986-06-01 00:00:00
abstract：:The Salt Substitute and Stroke Study is an ongoing 5-year large-scale cluster randomized trial investigating the effects of potassium-enriched salt substitute compared to usual salt on the risk of stroke. The study involves 600 villages and 20,996 individuals in rural China. Intermediate risk markers were measured in ...
journal_title：American heart journal
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.ahj.2019.12.020
更新日期：2020-03-01 00:00:00
abstract：BACKGROUND:National registries are advocated as instrumental to the solution of rarity-related problems for patients with hypertrophic cardiomyopathy (HCM), including limited access to advanced treatment options. Thus, an Italian Registry for HCM was created to assess the clinical profile and the level of care nationwi...
journal_title：American heart journal
pub_type： 杂志文章
doi：10.1016/j.ahj.2005.01.005
更新日期：2005-11-01 00:00:00
abstract：:The effects of lorcainide, a new antiarrhythmic drug, on serum electrolytes and osmolality are described in a series of 33 patients with organic heart disease and complex ventricular arrhythmias treated with lorcainide. In eight patients, a mean decrease in serum Na+ of 8.25 +/- 3.2 mEq/L was observed after a single 2...
journal_title：American heart journal
pub_type： 杂志文章
doi：10.1016/0002-8703(84)90690-2
更新日期：1984-12-01 00:00:00
