Abstract：
OBJECTIVE:The mechanism underlying recurrence after successful ablation of ventricular arrhythmias (VAs) was unclear. Spectrum analysis can help to identify near-field activation. The purpose of this study was to quantify the changes of near-field activation in response to ablation at the VAs origin in the aortic root (AR-VAs) and to assess its relationship with late ablation outcome. METHODS AND RESULTS:Patients who underwent acutely successful ablation for AR-VAs were analysed. Ventricular electrograms acquired before and after ablation at VAs origin were subjected to spectrum analysis. The area under the curve of the high frequency component (HFC, 50-200 Hz) and the low frequency component (LFC, 0-50 Hz) was measured. The proportion of HFC to the frequency spectrum of 0-200 Hz was defined as the HFC ratio (HFCR). The reduction of HFC and HFCR in response to ablation was defined as HFC pre-post and HFCR pre-post, respectively. Documentation of VAs with the same morphology after an acute successful procedure was defined as recurrence. Fifty-six patients were analysed, and VAs recurred in 17 patients. HFCR pre-post, HFC pre-post, and HFC pre-ablation were significantly higher in patients without recurrence. And HFCR pre-post has the highest predictive value (area under the receiver-operating characteristic curve: 0.975). A HFCR pre-post of 1.0% differentiated two groups (sensitivity = 84.6%, specificity = 100%). Higher HFCR pre-post was correlated with shorter VAs termination time (correlation coefficient = -0.399, p = .009). CONCLUSIONS:HFCR pre-post can quantify the near-field activation change during ablation. Incomplete destruction to the VAs foci could underlie recurrence after successful ablation.
journal_name
Acta Cardioljournal_title
Acta cardiologicaauthors
Liu Z,Liu X,Ren L,Yin X,Han H,Wang Y,Deng W,Jia Y,Fang P,Yang Xdoi
10.1080/00015385.2017.1324658subject
Has Abstractpub_date
2018-02-01 00:00:00pages
29-39issue
1eissn
0001-5385issn
1784-973Xjournal_volume
73pub_type
杂志文章abstract：PURPOSE:We aimed to investigate the role of QRS duration on the surface electrocardiogram (ECG) in predicting response to levosimendan therapy in patients with acute systolic heart failure. METHODS:Patients with an ejection fraction (EF) lower than 35% who required intravenous inotropic support despite optimal heart f...
journal_title：Acta cardiologica
pub_type： 杂志文章
doi：10.1080/ac.67.3.2160721
更新日期：2012-06-01 00:00:00
abstract：OBJECTIVE:This study evaluated autonomic nervous system function in 5 young (6-10 years old) and 5 older (10-15 years) children with recurrent episodes of neurally mediated syncope and a positive tilt-test result, 10 with syncope but a negative test result and 30 age-matched healthy volunteers. METHODS:Time- (SDNN, SD...
journal_title：Acta cardiologica
pub_type： 杂志文章
doi：10.2143/AC.55.3.2005734
更新日期：2000-06-01 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：:Isolated ventricular noncompaction of myocardium is a rare congenital disease due to an arrest of myocardial morphogenesis during foetal development. It is characterized by a thin compacted epicardial and an extremely thickened endocardial layer with prominent trabeculations and deep intertrabecular recesses. The pers...
journal_title：Acta cardiologica
pub_type： 杂志文章
doi：10.2143/AC.59.2.2005174
更新日期：2004-04-01 00:00:00
abstract：OBJECTIVE:B-type natriuretic peptide (BNP) has diagnostic and prognostic value in a wide variety of cardiac disorders including heart failure and acute coronary syndromes. We aimed to evaluate the prognostic value of baseline and post-procedural BNP levels in predicting major adverse cardiac events (MACE) in stable cor...
journal_title：Acta cardiologica
pub_type： 杂志文章
doi：10.2143/AC.63.1.2025331
更新日期：2008-02-01 00:00:00
abstract：OBJECTIVE:This study aimed at determining the effect of percutaneous ASD closure on the AV conduction. Percutaneous closure of ostium secundum atrial septal defects (ASDs) has been widely accepted and has become the standard treatment of this malformation. However, some complications have been reported. Because of the ...
journal_title：Acta cardiologica
pub_type： 杂志文章
doi：10.1080/ac.66.3.2114130
更新日期：2011-06-01 00:00:00
abstract：:The increasing number of amateur sportsmen enhances the need for a correct evaluation of subjects suspected of overt and mild cardiac disease. Out of 4000 athletes, 72 subjects were clinically preselected by the sport doctor during an annual routine examination. They were studied with mono and 2D echo, pulsed color (P...
journal_title：Acta cardiologica
pub_type： 杂志文章
doi：
更新日期：1992-01-01 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：OBJECTIVE:The levels of adiponectin, an anti-atherogenic protein, are decreased in patients with coronary artery disease. Syndrome X is associated with endothelial dysfunction, which is a key feature in the evolution of atherosclerosis. We sought to determine whether serum adiponectin levels are decreased in patients w...
journal_title：Acta cardiologica
pub_type： 杂志文章
doi：10.2143/AC.65.2.2047056
更新日期：2010-04-01 00:00:00
abstract：:Indices of the first derivative and of the normalized first derivative of the left apexcardiogram were used to evaluate the contractile state of the left ventricle of cyclists in the competitive season compared to their resting season and of cardiac patients before and after a physical training program. In both groups...
journal_title：Acta cardiologica
pub_type： 杂志文章
doi：
更新日期：1983-01-01 00:00:00
abstract：:An early exercise stress test was carried out in 116 patients 8 to 14 days after a myocardial infarction. This test is in good agreement with the late maximal stress test performed 8 weeks after the infarction, both tests being positive together in 86.4% and negative in 84.6% of the cases. Residual coronary insufficie...
journal_title：Acta cardiologica
pub_type： 杂志文章
doi：
更新日期：1983-01-01 00:00:00
abstract：:The left ventricular haemodynamic alterations during right atrial pacing were studied in 12 cases. Cardiac index varied little: during maximal rate however, its mean value was slightly lower than the resting one. Stroke index decreased inversely to the heart rate. The course of these indices did not separate the norma...
journal_title：Acta cardiologica
pub_type： 杂志文章
doi：
更新日期：1976-01-01 00:00:00
abstract：:We present the case of a young woman who developed a cerebrovascular accident due to a spontaneous internal carotid artery dissection. We stress the importance of clinical clues to diagnosis: ipsilateral facial pain and a partial Horner's syndrome are the most frequent clinical manifestations. Compared to patients wit...
journal_title：Acta cardiologica
pub_type： 杂志文章
doi：10.2143/AC.62.5.2023422
更新日期：2007-10-01 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: Response to cardiac resynchronisation therapy (CRT) in patients with heart failure depends on the degree of correction of electromechanical dyssynchrony between the left and right ventricles (LV, RV). It is not known whether chronic programming of interventricular (VV) intervals based on characterisation of myoc...
journal_title：Acta cardiologica
pub_type： 杂志文章
doi：10.1080/00015385.2019.1690261
更新日期：2019-11-14 00:00:00
abstract：OBJECTIVE:Left ventricular thrombus (LVT) is one of the important complications of acute anterior wall myocardial infarction (MI). Mean platelet volume (MPV) is one of the platelet indices reflecting platelet reactivity. In this present study we investigated the effect of MPV on LVT formation after primary percutaneous...
journal_title：Acta cardiologica
pub_type： 杂志文章
doi：10.2143/AC.69.6.1000002
更新日期：2014-12-01 00:00:00
abstract：:We report the M-mode and two-dimensional echocardiographic findings in a patient with familial amyloidosis. The diagnosis was made by the clinical picture and histologic evidence of amyloid in peripheral nerve biopsy. Though the patient had no clinical sign of heart failure, extensive involvement of the heart was demo...
journal_title：Acta cardiologica
pub_type： 杂志文章
doi：
更新日期：1981-01-01 00:00:00
abstract：:Creatine kinase (CK) and its isoenzyme CK-MB are important tools for the diagnosis of acute myocardial infarction. The content of CK-MB relative to total CK in myocardial cells is variable; it is low in normal myocardium and increased several-fold in hypoxic myocardium. We tested the hypothesis that CK-MB mass (CK-MBm...
journal_title：Acta cardiologica
pub_type： 杂志文章
doi：
更新日期：1997-01-01 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：OBJECTIVE:This study was performed to assess whether post-stress and rest functional parameters, as measured by gated-SPECT, provide additional predictive value for long-term prognosis, over clinical and perfusion data in patients (pts.) with low left ventricular ejection fraction (LVEF). METHODS:647 consecutive pts. ...
journal_title：Acta cardiologica
pub_type： 临床试验,杂志文章
doi：10.2143/AC.59.1.2005154
更新日期：2004-02-01 00:00:00
abstract：:The effectiveness and safety of intravenous lorcainide was evaluated in 14 patients with normal (QRS less than 110 ms) and in 9 patients with prolonged QRS duration (QRS greater than or equal to 110 ms) showing chronic high frequency premature ventricular complexes (mean value of PVCs 17 min-1). Lorcainide was infused...
journal_title：Acta cardiologica
pub_type： 杂志文章
doi：
更新日期：1985-01-01 00:00:00
abstract：OBJECTIVE:The scope of this study is to detect whether or not the entropy (E) circadian rhythm (CR) is maintained preserved in sinusal R-R intervals (SRRI), its loss being the expression of a transition to an indeterministic chaos in heart rate variability (HRV). METHODS:The E of SRRI was estimated in 14 type I diabet...
journal_title：Acta cardiologica
pub_type： 杂志文章
doi：10.2143/ac.62.3.2020814
更新日期：2007-06-01 00:00:00
abstract：:Between March 1982 and March 1991, 225 heart transplantations (HTx) have been performed in 220 patients suffering end stage cardiac disease. Thirteen percent were females and 87% were males. Age range was from 5 to 68 years. The underlying cardiac disease was ischemic cardiopathy in 51.5%, congestive dilated cardiomyo...
journal_title：Acta cardiologica
pub_type： 杂志文章
doi：
更新日期：1991-01-01 00:00:00
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 improvi...
journal_title：Acta cardiologica
pub_type： 杂志文章
doi：10.1080/ac.66.1.2064966
更新日期：2011-02-01 00:00:00
abstract：UNLABELLED:In order to detect myocardial viability in coronary artery disease patients (CAD) with a previous myocardial infarction and dysfunction of the left ventricle (LV), the reliability of the left atrioventricular plane displacement (LAVPD) during low dose dobutamine stress echocardiography (DSE), was validated. ...
journal_title：Acta cardiologica
pub_type： 杂志文章
doi：
更新日期：1995-01-01 00:00:00
abstract：BACKGROUND:Despite the availability of guidelines for preoperative cardiology consultations, their efficacy in real clinical practice remains unknown. Furthermore, there are concerns that overused cardiology consultations can lead to unnecessary investigations, prolonged hospital stays, and even cancellation of necessa...
journal_title：Acta cardiologica
pub_type： 杂志文章
doi：10.1080/ac.66.4.2126592
更新日期：2011-08-01 00:00:00
abstract：OBJECTIVES:Lectin-like oxidized low-density lipoprotein receptor-1 (LOX-1) appears to be involved in atherosclerotic plaque vulnerability and rupture. In this study, we aimed to evaluate the utility of serum LOX-1 levels in the diagnosis and assessment of left ventricular systolic HF and LOX-1’s relationship with serum...
journal_title：Acta cardiologica
pub_type： 杂志文章
doi：10.2143/AC.71.2.3141848
更新日期：2016-04-01 00:00:00
abstract：OBJECTIVE:The aim of this study was to evaluate pain and pulmonary function after partial upper versus complete sternotomy for aortic valve surgery. METHODS AND RESULTS:In a prospective study of 31 adult patients, 15 individuals underwent aortic valve replacement via partial upper sternotomy, and 16 patients were oper...
journal_title：Acta cardiologica
pub_type： 杂志文章
doi：10.2143/AC.58.1.2005254
更新日期：2003-02-01 00:00:00
abstract：:Primary ventricular fibrillation especially occurs during the first hours after acute myocardial infarction and is often not preceded by premonitory ventricular premature beats. In hospital primary ventricular fibrillation can be prevented by an intravenous lidocaine regimen in a rather high dosage. By contrast the ef...
journal_title：Acta cardiologica
pub_type： 杂志文章
doi：
更新日期：1977-01-01 00:00:00
abstract：:The Cardiology Foundation supported by the perspicacious Princess Lilian was created in 1958. As an introduction to this symposium, the challenges that the cardiologist and surgeon encountered in 1958, are recalled as well as the essential problems requiring solutions in that era of evolving cardiac surgery. ...
journal_title：Acta cardiologica
pub_type： 历史文章,杂志文章
doi：
更新日期：2004-01-01 00:00:00
