Abstract:
OBJECTIVES:Subclinical hypothyroidism (SH) is characterized by normal serum free T4 (fT4), free T3 (fT3) levels and increased serum thyroid stimulating hormone (TSH) levels.The aim of this study was to assess the validity of tissue Doppler imaging (TDI) in evaluating cardiac effects of SH and to demonstrate the improving effects of L-thyroxin(L-T4) on TDI parameters. METHODS:Twenty-seven patients with SH and 22 healthy controls were evaluated by standard echocardiography and TDI. TDI-derived systolic velocities [isovolumic myocardial acceleration (IVA), peak myocardial velocity during isovolumic contraction (IW), peak systolic velocity during ejection period (Sa)] and diastolic indices (peak early (Ea) and late diastolic (Aa) velocities, Ea/Aa, E/Ea ratios and Tei index) were measured. After restoring euthyroidism, all measurements were repeated. RESULTS:At baseline, left ventricular (LV) systolic velocities (IW and IVA) and diastolic indices were significantly impaired in the SH group. After L-T4 therapy, left ventricular systolic and diastolic functions were improved. Right ventricular (RV) systolic velocities were similar between the study group and the healthy controls but diastolic functions were impaired in the SH group, at baseline. Tei index of the RV was improved after L-T4 therapy. RV IVA remained unchanged after hormone replacement therapy. CONCLUSIONS:SH is associated with biventricular systolic and diastolic dysfunction. IVA which is an accurate estimate of subclinical systolic dysfunction, was significantly impaired in the left ventricle and had improved after L-T4 therapy. We found that IVA is able to detect early effects of subclinical hypothyroidism on LV systolic functions and L-T4 therapy can improve ventricular functions.
journal_name
Acta Cardioljournal_title
Acta cardiologicaauthors
Oner FA,Yurdakul S,Oner E,Uzum AK,Erguney Mdoi
10.1080/ac.66.1.2064966subject
Has Abstractpub_date
2011-02-01 00:00:00pages
47-55issue
1eissn
0001-5385issn
1784-973Xjournal_volume
66pub_type
杂志文章abstract::Hereditary diseases under the age of 35 are the most common underlying heart disease, leading to sudden cardiac death (SCD) in competitive sports, while in older people, atherosclerotic coronary artery disease (CAD) is the main cause. The following preventive measures are recommended: (a) The pre-participation cardiov...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:10.1080/00015385.2020.1867388
更新日期:2021-01-08 00:00:00
abstract:OBJECTIVE:Smoking mentholated cigarettes inhibits the metabolism of nicotine and increases systemic exposure to cigarette smoke toxins. However, the possible effects of smoking mentholated cigarettes on coronary microvascular functions are unknown. We sought to investigate whether smoking mentholated cigarettes impairs...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:10.2143/AC.63.2.2029518
更新日期:2008-04-01 00:00:00
abstract::The present study aims at evaluating the acute hemodynamic effects of external and internal (3 and 15 mA) pacing on 30 patients with severe cardiac failure. The global and regional ejection fraction were calculated by repeated radionuclide ventriculography at rest (control) and during increasing pacing rates. Blood pr...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:
更新日期:1994-01-01 00:00:00
abstract:OBJECTIVE:The objective of this study was to analyse age-related changes in human myocardial nerve plexuses and collagen networks of the auricle of the right atrium in subjects in whom no cardiac diseases or pathology had been diagnosed. METHODS AND RESULTS:Morphometric analysis of acetylcholinesterase (AChE)-stained ...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:10.2143/AC.61.5.2017765
更新日期:2006-10-01 00:00:00
abstract:OBJECTIVES:The role of adenosine as a cardioprotective agent is well known and recent experimental studies suggest that impairment of adenosine-related signal transduction contributes to the pathophysiology of chronic heart failure. The recent observation of an association between ADA, genetic polymorphism and coronary...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:10.1080/ac.69.1.3011343
更新日期:2014-02-01 00:00:00
abstract:BACKGROUND:High platelet reactivity (HPR) to clopidogrel is associated with an increased risk of ischaemic complications during and after coronary interventions and concerns up to 50% of patients undergoing PCI. AIM OF THE STUDY:The aim of the study was to identify patients with HPR to clopidogrel using bedside clinic...
journal_title:Acta cardiologica
pub_type: 临床试验,杂志文章,多中心研究
doi:10.2143/AC.70.5.3110511
更新日期:2015-10-01 00:00:00
abstract:OBJECTIVE:Coronary stenoses of intermediate severity create difficulties in decision making when revascularization is concerned. Myocardial fractional flow reserve (mFFR), an accurate tool to identify physiological significance of individual coronary stenoses, may help solve this problem. METHODS AND RESULTS:Fifty-eig...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:10.2143/AC.57.5.2005449
更新日期:2002-10-01 00:00:00
abstract:AIMS:We retrospectively followed 250 patients who started dialysis between 2005 and 2009 to clarify the prevalence, the prognosis and the prescribed heart failure treatment of systolic heart failure patients on dialysis. METHODS AND RESULTS:This cohort was divided according to left ventricular ejection fraction (LVEF)...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:10.1080/ac.68.1.2959632
更新日期:2013-02-01 00:00:00
abstract::Seven cases of an unusual type of ventricular arrhythmia, already named "Torsades de pointe" by French authors, are presented. It is characterized by a changing pattern of the ventricular complexes, spontaneous onset and cessation, and refractoriness to defibrillation and antiarrhythmic drugs which decrease intraventr...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:
更新日期:1978-01-01 00:00:00
abstract::Non invasive blood pressure monitoring using an automatic Nippon Colin recorder was performed in 20 hospitalized hypertensive patients every 15 min during a 4-day study period. A chronobiologic analysis of the data was performed in order to test the consistency of the whole-day blood pressure pattern. Halberg's method...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:
更新日期:1988-01-01 00:00:00
abstract::Experimental demonstration that the external phonocardiogram is similar to the third derivative (rate of acceleration) of LV pressure, and that catecholamines cause a similar increase of the early systolic wave of the first derivative of LV pressure and of S1 prompted a study of the first sound during stress testing. ...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:
更新日期:1986-01-01 00:00:00
abstract::Stereological methods under light and electron microscopy have been used to study the ventricular myocardium of rats exhausted by swimming exercise. The proportion of myocardial cell/interstitium diminishes with the exercise. This result is interpreted as a consequence of an intercellular edema which becomes more pron...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:
更新日期:1984-01-01 00:00:00
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journal_title:Acta cardiologica
pub_type: 杂志文章
doi:
更新日期:1988-01-01 00:00:00
abstract::Left ventricular aneurysms are common in clinical practice. Although their underlying aetiology is generally clear by the clinical context, it can be hard to define the exact cause in some cases. We report a case of a patient in whom cardiac MRI provided important information about the differential diagnosis of a left...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:10.1080/ac.66.4.2126612
更新日期:2011-08-01 00:00:00
abstract:OBJECTIVES:The purpose of this study is to determine plasma fibronectin level and its relationships with plasma lipids, lipoproteins and C-reactive protein (CRP) levels in patients with dyslipidaemia during lipid-lowering therapy. METHODS:Plasma levels of fibronectin, CRP, fibrinogen, lipids and lipoproteins in 38 pat...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:10.2143/AC.57.6.2005466
更新日期:2002-12-01 00:00:00
abstract::Enalapril is a new angiotensin converting enzyme inhibitor which, when absorbed by the digestive tract, is converted to enalaprilat. This metabolite is, in fact, the active form of enalapril. Its duration of action is sufficiently long so that enalapril can be administered in a single daily dose. Enalapril has been pr...
journal_title:Acta cardiologica
pub_type: 杂志文章,评审
doi:
更新日期:1986-01-01 00:00:00
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pub_type: 杂志文章
doi:10.2143/AC.63.3.1020306
更新日期:2008-06-01 00:00:00
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journal_title:Acta cardiologica
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.2143/AC.57.4.2005430
更新日期:2002-08-01 00:00:00
abstract:OBJECTIVE:The beneficial effect of pentoxifylline (PTX) on ischaemic-reperfusion injury was assessed in a rat model of transient global cerebral ischaemia. DESIGN:Randomized, controlled, prospective study. SETTING:University research laboratory. SUBJECTS:Thirty-six male Wistar albino rats. INTERVENTIONS:Ischaemia w...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:
更新日期:1998-01-01 00:00:00
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pub_type: 杂志文章
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更新日期:2018-06-01 00:00:00
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journal_title:Acta cardiologica
pub_type: 杂志文章
doi:
更新日期:1999-10-01 00:00:00
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pub_type: 杂志文章
doi:10.1080/ac.65.5.2056235
更新日期:2010-10-01 00:00:00
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pub_type: 杂志文章
doi:10.1080/ac.66.5.2131091
更新日期:2011-10-01 00:00:00
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journal_title:Acta cardiologica
pub_type: 杂志文章
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更新日期:2019-08-01 00:00:00
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pub_type: 杂志文章
doi:
更新日期:1999-12-01 00:00:00
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pub_type: 杂志文章
doi:10.2143/AC.58.6.2005319
更新日期:2003-12-01 00:00:00
abstract:BACKGROUND:The effects of cigarette smoking on the circadian rhythm of heart rate variability (HRV) are not known. METHODS:We studied the effects of cigarette smoking on the circadian rhythm of HRV in 24 smoking and 21 non-smoking healthy subjects. Twenty-four hour ambulatory electrocardiograms were recorded and time ...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:10.2143/AC.55.5.2005757
更新日期:2000-10-01 00:00:00
abstract::Clinical experience with repeated tilt testing and standing training has shown that this procedure can be used as a new therapy for the restoration of abnormal autonomic orthostatic reflexes. The introduction of tilt training therapy for neurally mediated syncope is a new and effective treatment. This new therapy has ...
journal_title:Acta cardiologica
pub_type: 杂志文章,评审
doi:10.2143/AC.61.2.2014332
更新日期:2006-04-01 00:00:00
abstract:BACKGROUND:The presence of adhesions after heart operations increases the risk of life-threatening damage to the heart and extracardiac grafts. Infections, tissue injury and inflammations are suspected aetiologic agents. The main purpose of our study is to evaluate the effect of an antiinflammatory agent piroxicam on t...
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pub_type: 杂志文章
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更新日期:2007-12-01 00:00:00
abstract::Between April 1988 and October 1989, 22 adult patients with isolated or predominant severe mitral stenosis underwent Percutaneous Transvenous Mitral Valvuloplasty (PTMV). In 20 patients, a transseptal double balloon technique was used; in the last 2 patients, dilatation was performed using the Inoué balloon. Immediate...
journal_title:Acta cardiologica
pub_type: 杂志文章
doi:
更新日期:1990-01-01 00:00:00