Abstract:
:Of 26,294 consecutive patients monitored in a comprehensive drug surveillance program, 1067 (4 per cent) received methyldopa for treatment of hypertension. Adverse reactions attributed to methyldopa were reported in 149 patients (14 per cent), the most frequent being hypotension. Life-threatening adverse effects were reported in nine patients (6 per cent of reactors)--the major problems being hypotension associated in several patients with signs of cardiac or cerebral ischemia. Hypotension attributed to methyldopa was more frequent in younger patients, in those with uremia, in lighter subjects, and in those receiving a high daily dose. Marked interaction between these factors was demonstrated and eightfold differences in the frequency of hypotension were observed in different sub-groups of methyldopa recipients. Adverse effects other than hypotension were reported infrequently and did not correlate well with the previously mentioned factors. The findings suggest that methyldopa therapy should be commenced cautiously in younger patients, in the non-obese, and in those with impairment of renal function as manifest by elevated blood urea nitrogen levels.
journal_name
Am Heart Jjournal_title
American heart journalauthors
Lawson DH,Gloss D,Jick Hdoi
10.1016/0002-8703(78)90192-8subject
Has Abstractpub_date
1978-11-01 00:00:00pages
572-9issue
5eissn
0002-8703issn
1097-6744pii
0002-8703(78)90192-8journal_volume
96pub_type
杂志文章abstract::The pathophysiologic features and clinical manifestations of HCM have been elucidated by the introduction of several new diagnostic options. Knowledge of the molecular defects of HCM has advanced rapidly, and genetic screening studies have reemphasized the value of the standard electrocardiogram as an initial screenin...
journal_title:American heart journal
pub_type: 杂志文章,评审
doi:10.1016/s0002-8703(96)90018-6
更新日期:1996-11-01 00:00:00
abstract::The effects of cytochrome C, an electron carrier in the process of oxidative phosphorylation, on infarct size and regional left ventricular function after a coronary artery occlusion were investigated. Thus, in 30 dogs, 1 minute after left anterior descending coronary artery occlusion, 99mTc-labeled albumin microspher...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/0002-8703(87)90019-6
更新日期:1987-01-01 00:00:00
abstract::Few studies have examined metabolic consequences of coronary occlusion and reperfusion using phosphorus31 nuclear magnetic resonance (31P-NMR) in an intact animal model. Accordingly, we developed a model to study serial changes in myocardial metabolism in the intact open-chest rabbit. Ten animals underwent 20 +/- 2 mi...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/0002-8703(89)90656-x
更新日期:1989-01-01 00:00:00
abstract::A study of nonbacterial thrombotic endocarditis has been carried out in a series of 3,404 autopsies performed upon atomic bomb survivors in Hiroshima in the period 1953-1970. The prevalence of the lesion was 2.4 per cent, with a greater frequency among the elderly and among females, and with a significant relationship...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/0002-8703(75)90119-2
更新日期:1975-08-01 00:00:00
abstract::To assess the influence of viscosity and iodine concentration, three matched and standardized left coronary arteriograms were obtained in 20 patients using iopamidol (Isovue-370), ioversol (Optiray-320), and iohexol (Omnipaque-350). The order of contrast media was randomized and the administration of contrast was doub...
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(92)90760-s
更新日期:1992-01-01 00:00:00
abstract::A dilated cardiomyopathy picture has been produced by rapid atrial and ventricular rates sustained for a long period of time in some patients. The ventricular tachycardias have in some instances been associated with ventricular tumors as the cause of the tachycardia. Once the tumor is removed, the tachycardia stops an...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/0002-8703(88)90811-3
更新日期:1988-03-01 00:00:00
abstract::The pharmacokinetic properties and hemodynamic effect of molsidomine and its pharmacologically active metabolite SIN-1 were investigated in 13 healthy volunteers following single oral doses. Hemodynamic changes were measured by finger plethysmography (peripheral arterial resistance), impedance plethysmography (venous ...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/0002-8703(85)90671-4
更新日期:1985-03-01 00:00:00
abstract::Detection of mild hypertension by a small number of casual blood pressures may be inaccurate for the determination of average blood pressure. Nonetheless, casual pressures remain the basis for the diagnosis and treatment of hypertensive patients. We compared casual and noninvasive ambulatory blood pressure monitoring ...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/0002-8703(88)90180-9
更新日期:1988-10-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:Carcinoid syndrome may involve right carcinoid heart disease (CHD), secondary to the release of vasoactive substances. Left CHD is rare, as the inactivation of serotonin by the lung protects the left heart. We attempted to evaluate the prevalence of CHD and patent foramen ovale (PFO) with seria...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/j.ahj.2006.02.019
更新日期:2006-05-01 00:00:00
abstract:BACKGROUND:Symptoms of anxiety are associated with increased risk of coronary artery disease and potentially poor prognosis among patients with existing coronary artery disease, but whether symptoms of anxiety influence atherosclerotic progression among such patients is uncertain. Accordingly, we evaluated the hypothes...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/j.ahj.2009.08.019
更新日期:2009-11-01 00:00:00
abstract:BACKGROUND:In the treatment of coronary artery disease, a "pro-healing" approach for prevention of in-stent restenosis and late stent thrombosis is intuitively favored over the use of cytotoxic or cytostatic drugs released from a drug-eluting stent (DES). Promoting accelerated endothelial coverage of the stent surface,...
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.2009.07.022
更新日期:2009-10-01 00:00:00
abstract:BACKGROUND:We aimed to study the comparative safety and effectiveness of various antithrombotic treatment strategies among older adults with non-ST elevation myocardial infarction (NSTEMI) and atrial fibrillation (AF). METHODS:Using the CRUSADE registry linked to longitudinal Medicare claims data, we examined NSTEMI p...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/j.ahj.2012.01.017
更新日期:2012-04-01 00:00:00
abstract:BACKGROUND:According to a recent meta-analysis, parathyroid hormone (PTH) excess is associated with increased cardiovascular disease (CVD) risk, but existing studies are limited. We examined in a prospective study the association of PTH with the incidence of CVD, taking into account vitamin D and other confounding vari...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/j.ahj.2014.04.017
更新日期:2014-09-01 00:00:00
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
pub_type: 杂志文章
doi:10.1016/0002-8703(92)90635-9
更新日期:1992-02-01 00:00:00
abstract::We performed a chronologic investigation of left (LV) and right (RV) ventricular myosin ATPase activity and hemodynamics in newborn lambs. We found an elevation in myosin ATPase activity for the LV, which was achieved by 6 to 8 weeks of age and which correlated directly with increasing ventricular stroke work. Myosin ...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/0002-8703(82)90396-9
更新日期:1982-05-01 00:00:00
abstract::Coronary atherosclerosis may cause acute and chronic ischemic syndromes; the former are caused by "acute plaque events," mostly thrombosis complicating vulnerable ruptured plaques, namely severe lesions with large core, thin cap, and weak shoulder infiltrated by activated inflammatory cells. Plaque rupture may also oc...
journal_title:American heart journal
pub_type: 杂志文章,评审
doi:10.1016/s0002-8703(99)70321-2
更新日期:1999-08-01 00:00:00
abstract::Left ventricular aneurysm has been associated with increased mortality rates. The Cardiac Arrhythmia Suppression Trial (CAST) database was used prospectively to assess (1) the prognostic significance of left ventricular (LV) aneurysm after myocardial infarction on mortality rates and (2) the relation of LV aneurysm 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:10.1016/0002-8703(94)90549-5
更新日期:1994-04-01 00:00:00
abstract:BACKGROUND:Randomized trials have established efficacy of clopidogrel in various types of acute coronary syndromes (ACS). The objective of this study was to examine the temporal trends and patterns of early clopidogrel use (within the first 24 hours of hospitalization) across the spectrum of patients with ACS in Canada...
journal_title:American heart journal
pub_type: 杂志文章,多中心研究
doi:10.1016/j.ahj.2009.01.002
更新日期:2009-04-01 00:00:00
abstract::While the total ischemic burden on the left ventricle represents the combined effects of both symptomatic and asymptomatic myocardial ischemia, the total vascular burden has many components including an increased systemic peripheral vascular resistance, an increased pulmonary vascular resistance, and an increased coro...
journal_title:American heart journal
pub_type: 杂志文章,评审
doi:10.1016/0002-8703(88)90551-0
更新日期:1988-01-01 00:00:00
abstract::Functional, ambulatory, community-dwelling subjects (n = 423, aged 75 to 85 years) underwent baseline 24-hour ambulatory electrocardiography (ECG) examinations as part of the Bronx Aging Study, a 10-year prospective cohort study designed to identify risk factors and disease markers for cardiovascular, cerebrovascular,...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/s0002-8703(96)90425-1
更新日期:1996-08-01 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
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1016/j.ahj.2018.11.002
更新日期:2019-02-01 00:00:00
abstract::In order to study the origin of the basal systolic murmurs in mitral stenosis, left and right heart catheterization was performed in 18 patients with mitral stenosis using intracardiac phonocardiography. Our data revealed that the basal systolic murmurs originated in the aorta, the pulmonary artery, and the outflow tr...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/0002-8703(78)90163-1
更新日期:1978-10-01 00:00:00
abstract:BACKGROUND:To examine sex differences in pain and associated symptoms in patients with exercise-related ischemia, as well as the independence of these findings from other clinical factors. METHODS:Prospective study of 482 women and 425 men (mean age 58 years) undergoing exercise stress testing with myocardial perfusio...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/j.ahj.2005.06.028
更新日期:2006-04-01 00:00:00
abstract::This study assesses the significance of inferior ST-segment depression during anterior acute myocardial infarction (AMI) by investigating the relationship between inferior ST-segment depression and (1) the site of the left anterior descending (LAD) coronary artery lesion and (2) ST-segment deviation in the various ant...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/0002-8703(94)90372-7
更新日期:1994-06-01 00:00:00
abstract:BACKGROUND:This study assessed the feasibility of a 12-week program of exercise, with and without intramuscular testosterone supplementation, in male patients with chronic heart failure (CHF) and low testosterone status and collected preliminary data for key health outcomes. METHODS:Male patients with CHF (n = 41, age...
journal_title:American heart journal
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.ahj.2012.09.016
更新日期:2012-12-01 00:00:00
abstract::Hemodynamic and echocardiographic data from 33 consecutive patients undergoing cardiac transplantation were correlated with endomyocardial biopsy results to determine whether reversible restrictive hemodynamics accompany histologic evidence of transplant rejection. During the study period 251 biopsy specimens were obt...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/0002-8703(91)90475-w
更新日期:1991-10-01 00:00:00
abstract:BACKGROUND:In patients with severe pulmonary hypertension (PH), right ventricular function is a main determinant of clinical stability and outcome. Supraventricular tachyarrhythmias (SVTs) may compromise cardiac function and threaten prognosis in patients with PH, but the incidence and clinical relevance of SVTs in PH ...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/j.ahj.2006.09.008
更新日期:2007-01-01 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
pub_type: 杂志文章
doi:10.1016/j.ahj.2013.12.004
更新日期:2014-03-01 00:00:00
abstract::Given the preventable morbidity and mortality associated with atrial fibrillation (AF), increased awareness of undiagnosed AF, and advances in mobile electrocardiogram (ECG) technology, there is a critical need to assess the effectiveness of using such technology to routinely screen for AF in clinical practice. VITAL-...
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.2019.06.011
更新日期:2019-09-01 00:00:00
abstract:BACKGROUND:Although controversial, reducing low-density lipoprotein cholesterol (LDL-C) to target levels remains a common therapeutic goal after acute myocardial infarction (AMI). We sought to illuminate patient and provider characteristics associated with LDL-C goal nonattainment after AMI. METHODS:In an observationa...
journal_title:American heart journal
pub_type: 杂志文章
doi:10.1016/j.ahj.2012.10.005
更新日期:2013-01-01 00:00:00