Abstract：
:Left circumflex coronary blood flow was increased significantly (20 per cent) during stimulation of somatic afferent fibers. The change in CBF was associated with significant increases in heart rate and arterial pressure and significant decrease in coronary vascular resistance. Controlling heart rate or preventing cardiac beta-adrenergic effects with propranolol during somatic nerve stimulation resulted in increases in CBF and arterial pressure with no change in coronary resistance. These results indicate that stimulation of a somatic nerve elicited an increase in CBF which could be explained on the basis of an increase in perfusion pressure plus a decrease in CVR resulting from the increased metabolic demand secondary to the increase in heart rate. There was no evidence of a significant neural component directly affecting CVR, even in the presence of beta-adrenergic blockade.
journal_name
Am Heart Jjournal_title
American heart journalauthors
Kline RLdoi
10.1016/0002-8703(79)90318-1subject
Has Abstractpub_date
1979-07-01 00:00:00pages
39-44issue
1eissn
0002-8703issn
1097-6744pii
0002-8703(79)90318-1journal_volume
98pub_type
杂志文章abstract：BACKGROUND:Stroke prevention in anticoagulation-naïve patients with atrial fibrillation undergoing cardioversion has not been systematically studied. OBJECTIVE:To determine outcomes in anticoagulation-naïve patients (defined as those receiving an anticoagulant for <48 hours during the index episode of atrial fibrillat...
journal_title：American heart journal
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.ahj.2016.06.008
更新日期：2016-09-01 00:00:00
abstract：:An exotic strain of Trypanosoma cruzi recovered from Triatoma dimidiata from Tegucigalpa, Honduras, was shown by isoenzyme studies to be closely related to the Miles' zymodeme 1 and laboratory reference strain Tehuantepec. It was injected into Swiss random-bred ICR mice. Clean Triatoma protracta nymphs and adults, whi...
journal_title：American heart journal
pub_type： 杂志文章
doi：10.1016/0002-8703(85)90082-1
更新日期：1985-09-01 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
pub_type： 杂志文章
doi：10.1016/j.ahj.2007.12.037
更新日期：2008-06-01 00:00:00
abstract：:The prevalence of heart failure (HF) is high and still on the rise. In 2004, an estimated 5.2 million adults in the United States carried the diagnosis of HF with a mortality rate of >19%. The incidence of HF is higher in individuals 65 years or older. As the US population grows older, the personal and economic costs ...
journal_title：American heart journal
pub_type： 杂志文章,评审
doi：10.1016/j.ahj.2009.04.007
更新日期：2009-06-01 00:00:00
abstract：BACKGROUND:Recent data indicate that cardiac antibodies play an active role in the pathogenesis of dilated cardiomyopathy (DCM) and may contribute to cardiac dysfunction in patients with DCM. The present study investigated the influence of immunoadsorption with subsequent immunoglobulin G substitution (IA/IgG) on cardi...
journal_title：American heart journal
pub_type： 杂志文章
doi：10.1016/j.ahj.2010.01.012
更新日期：2010-05-01 00:00:00
abstract：:The effects of alcohol intake on serum lipids and lipoproteins depend on the dose and mode of alcohol intake, individual susceptibility, genetic variables, and dietary factors. Therefore the changes of lipoprotein pattern are different among moderate and heavy drinkers. Moderate intake of alcohol increases the concent...
journal_title：American heart journal
pub_type： 杂志文章,评审
doi：10.1016/0002-8703(87)90614-4
更新日期：1987-02-01 00:00:00
abstract：BACKGROUND:The ability to return to work after infective endocarditis (IE) holds important socioeconomic consequences for both patients and society, yet data on this issue are sparse. We examined return to the workforce and associated factors in IE patients of working age. METHODS:Using Danish nationwide registries, w...
journal_title：American heart journal
pub_type： 杂志文章,多中心研究
doi：10.1016/j.ahj.2017.09.009
更新日期：2018-01-01 00:00:00
abstract：:To investigate the mechanisms of restenosis and detect useful interventions to prevent it, reliable quantitative measurements must be evaluated. Coronary arteries of domestic and minipigs (n = 18) were mechanically injured by balloon overstretching and killed at different intervals (2 to 25 weeks) after quantitative a...
journal_title：American heart journal
pub_type： 杂志文章
doi：10.1016/0002-8703(93)90531-d
更新日期：1993-12-01 00:00:00
abstract：BACKGROUND:Several studies have shown that patency of the epicardial vessel does not guarantee optimal myocardial perfusion in patients undergoing primary angioplasty for ST-segment elevation myocardial infarction (STEMI). The aim of the current study was to identify clinical and angiographic correlates of unsuccessful...
journal_title：American heart journal
pub_type： 杂志文章
doi：10.1016/j.ahj.2004.10.044
更新日期：2005-09-01 00:00:00
abstract：:We examined intraindividual variability in serum TC in 2912 men and women having TC measured at each of biennial examinations 2 through 7 of the FHS. RMSE described variability around the linear slope of an individual's TC during the baseline decade. Average biennial difference +/- SD was +3.7 +/- 6.7 mg/dl in men, +6...
journal_title：American heart journal
pub_type： 杂志文章
doi：10.1016/0002-8703(94)90393-x
更新日期：1994-06-01 00:00:00
abstract：BACKGROUND:Adenosine cardiac stress is widely used as an alternative to exercise testing during myocardial perfusion imaging (MPI). Dyspnea often accompanies the adenosine stress test. Although known asthmatic patients are excluded from this test because of the danger of bronchospasm, there is incomplete information re...
journal_title：American heart journal
pub_type： 杂志文章
doi：10.1067/mhj.2001.116070
更新日期：2001-07-01 00:00:00
abstract：:Currently available antiplatelet agents are limited in the scope and magnitude of platelet inhibition. Orally active platelet glycoprotein IIb/IIIa antagonists are currently in clinical testing. These agents may extend platelet inhibition and clinical benefit from parenteral glycoprotein IIb/IIIa antagonists. The most...
journal_title：American heart journal
pub_type： 杂志文章,评审
doi：10.1053/hj.1999.v138.99080
更新日期：1999-07-01 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：:Limited data are available on mitral valve replacement in the elderly patient. Therefore we report our 10-year experience including predictors of perioperative mortality and subsequent long-term cardiac mortality in elderly patients with mitral valve replacement compared to younger patients. Of the 126 consecutive pat...
journal_title：American heart journal
pub_type： 杂志文章
doi：10.1016/0002-8703(92)90934-n
更新日期：1992-07-01 00:00:00
abstract：BACKGROUND:Many US studies have documented an association between operator volume and outcomes after percutaneous coronary intervention (PCI). No study has assessed whether this relationship exists in Canada, where PCI is performed only at a limited number of regional centers and operator volumes are higher. METHODS:A...
journal_title：American heart journal
pub_type： 杂志文章,多中心研究
doi：10.1016/j.ahj.2005.07.033
更新日期：2006-04-01 00:00:00
abstract：BACKGROUND:Epidemiologic studies suggest that inhibition of renin-angiotensin system with angiotensin-converting enzyme inhibitors and angiotensin receptor blockers may prevent development of atrial fibrillation (AF). OBJECTIVE:The objective of the study was to assess if there is significant indication for using angio...
journal_title：American heart journal
pub_type： 杂志文章,meta分析
doi：10.1016/j.ahj.2006.01.007
更新日期：2006-08-01 00:00:00
abstract：:The effects of atrial pacing on the signal-averaged electrocardiogram were studied in 14 patients with remote myocardial infarction and a history of cardiac arrest or sustained ventricular tachycardia (group I) and in 13 patients with coronary artery disease and no history of sustained ventricular tachyarrhythmia (gro...
journal_title：American heart journal
pub_type： 杂志文章
doi：10.1016/s0002-8703(05)80077-8
更新日期：1990-01-01 00:00:00
abstract：BACKGROUND:High-sensitivity C-reactive protein (hsCRP) is promoted as an independent predictor of atherosclerotic risk. In addition, cardiorespiratory fitness is inversely related to hsCRP in single-sex cross-sectional analyses. Our objective was to determine if modulating fitness with exercise training imposes changes...
journal_title：American heart journal
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.ahj.2006.04.019
更新日期：2006-10-01 00:00:00
abstract：:Blood platelets play essential roles in normal coagulation and in coronary atherosclerotic disease and its complications. Various antiplatelet therapies, including aspirin, ticlopidine, and dipyridamole, have been developed for use in patients with known coronary artery artery disease to prevent ischemic complications...
journal_title：American heart journal
pub_type： 杂志文章,评审
doi：10.1016/0002-8703(95)90091-8
更新日期：1995-10-01 00:00:00
abstract：:An extremely athletic 56-year-old male physician was found to have profound sinus bradycardia. His only symptom was markedly increased alertness while actively exercising. During pacemaker insertion he had an episode of prolonged sinus arrest terminated by a precordial thump. This case suggests that exercise can alter...
journal_title：American heart journal
pub_type： 杂志文章
doi：10.1016/0002-8703(80)90284-7
更新日期：1980-07-01 00:00:00
abstract：:In the Cardiovascular Measurement System (CMS) the edge-detection algorithm, which was primarily designed for the Philips digital cardiac imaging system (DCI), is applied to cinefilms. Comparative validation of CMS and DCI was performed in vitro and in vivo with intracoronary insertion of stenosis phantoms in anesthet...
journal_title：American heart journal
pub_type： 杂志文章
doi：10.1016/0002-8703(93)91045-g
更新日期：1993-08-01 00:00:00
abstract：:This study uses echocardiography to characterize the pattern of left ventricular hypertrophy in a new hypertensive heart failure-prone rat strain designated SHHF/Mcc-cp (SHHF). M-mode echocardiograms of the left ventricle in nine 10- to 12-month old SHHF rats and nine age-matched spontaneously hypertensive rats (SHR) ...
journal_title：American heart journal
pub_type： 杂志文章
doi：10.1016/0002-8703(95)90081-0
更新日期：1995-10-01 00:00:00
abstract：:The objective of the current editorial is to introduce a new concept ("maimed myocardium") that we believe describes more accurately the incomplete, delayed recovery of LV function that may occur late after reperfusion after AMI. It has been demonstrated previously that myocardium remains viable for a prolonged period...
journal_title：American heart journal
pub_type： 社论,评审
doi：10.1016/0002-8703(95)90101-9
更新日期：1995-10-01 00:00:00
abstract：:We studied 56 right ventricular papillary muscles isolated from cats to determine whether the direct mechanical effects of contrast media are due to their pharmacologic action or to the hyperosmolality caused by them. A 10% solution of Renografin-76 abruptly decreased force 22% below control, then slowly increased it ...
journal_title：American heart journal
pub_type： 杂志文章
doi：10.1016/0002-8703(84)90550-7
更新日期：1984-07-01 00:00:00
abstract：:In 14 patients with severe congestive heart failure, the effects of captopril on the forearm circulation were evaluated with strain gauge plethysmography. Changes in plasma renin activity, angiotensin II, norepinephrine, epinephrine, bradykinin, prostaglandin E2, and 6-keto-prostaglandin F1 alpha concentrations were a...
journal_title：American heart journal
pub_type： 杂志文章
doi：10.1016/0002-8703(89)90662-5
更新日期：1989-01-01 00:00:00
abstract：BACKGROUND:Automated implantable cardioverter-defibrillators (ICDs) have become standard therapy for patients at high risk for sudden cardiac death. Linked data allow examination of trends in use and long-term survival after ICD implantation in an adult population. METHODS:Linked state-wide person-based data on hospit...
journal_title：American heart journal
pub_type： 杂志文章
doi：10.1016/j.ahj.2013.02.007
更新日期：2013-05-01 00:00:00
abstract：BACKGROUND:Stroke is a rare but serious event that complicates the course of patients with acute coronary syndromes (ACS). The type, outcome, and risk factors of stroke occurring in stabilized patients with ACS have not been previously reported. METHODS:We evaluated stroke incidence, subtypes, and outcomes, in additio...
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/j.ahj.2004.01.028
更新日期：2004-09-01 00:00:00
abstract：:The recognition that the onset of cardiovascular events follows a circadian periodicity and is frequently triggered by physical or mental stresses has created new possibilities for disease prevention. Morning peaks in occurrence are now well-documented for acute myocardial infarction, sudden cardiac death, transient m...
journal_title：American heart journal
pub_type： 杂志文章,评审
doi：10.1016/s0002-8703(99)70390-x
更新日期：1999-04-01 00:00:00
abstract：:Recently developed unstable angina clinical practice guidelines have recommended risk stratification with dipyridamole thallium-201 myocardial imaging in patients at "intermediate" pretest clinical risk who cannot exercise maximally. The prognostic value of predischarge dipyridamole technetium 99m sestamibi (MIBI) tom...
journal_title：American heart journal
pub_type： 杂志文章
doi：10.1016/0002-8703(95)90071-3
更新日期：1995-10-01 00:00:00
abstract：BACKGROUND:Low-molecular weight heparins have different pharmacokinetic and pharmacodynamic characteristics and may vary in efficacy. We compared the efficacy of enoxaparin with that of tinzaparin in the management of non-ST-segment elevation acute coronary syndromes (NSTACS). METHODS:A total of 438 patients with NSTA...
journal_title：American heart journal
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/S0002-8703(03)00179-0
更新日期：2003-08-01 00:00:00
