Abstract:
:Failure to control the ventricular rate in atrial fibrillation (AF) can be treated by radiofrequency (RF), ablation or modification of atrioventricular (AV) node. AV nodal ablation with pacemaker and AV nodal modification are associated with significant improvement in symptoms and quality of life. But there is no evidence that these techniques influence survival, and in some cases these therapies must be followed by implantation of a permanent pacemaker (due to complete AV block), and anticoagulation (due to persistence of underlying AF). The maze operation attempts to abolish AF by channeling the atrial activation between a series of incisions. Early results are encouraging, and simultaneous surgery may be beneficial. RF ablation can be used to create long linear lesions for this purpose (catheter maze). Preliminary studies show a higher success rate when linear ablations are performed in the left atrium than in the right atrium and that arrhythmogenic foci play a significant role in atrial fibrillation. However, catheter mazes are prolonged, and it is difficult with current technology to create endocardial linear lesions consistently that act as barriers to conduction. It is required to optimize this to transform investigational technique into a routine procedure. In specific cases, focal ablation or catheter ablation of the right atrial only can prevent AF. It may be possible that different approaches of ablation may be required, depending on the etiology. Curative radiofrequency catheter ablation for patients with AF may not be far in the future.
journal_name
J Cardioljournal_title
Journal of cardiologyauthors
Ohnishi S,Kasanuki Hsubject
Has Abstractpub_date
1999-03-01 00:00:00pages
71-7eissn
0914-5087issn
1876-4738journal_volume
33 Suppl 1pub_type
杂志文章,评审abstract:BACKGROUND:The indications for catheter ablation have been expanded to include persistent atrial fibrillation (AF) to enable a high degree of sinus rhythm maintenance. We occasionally encounter patients undergoing pacemaker implantation in whom sick sinus syndrome became clinically evident after ablation. This study in...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:10.1016/j.jjcc.2012.05.004
更新日期:2012-10-01 00:00:00
abstract::The treadmill exercise test (TET) is evaluated by exercise-induced ST-segment depression (delta ST). However, the depression sometimes only appears during the post-exercise period. Depression appearing only during the post-exercise period may be as useful as depression during exercise to predict coronary artery diseas...
journal_title:Journal of cardiology
pub_type: 临床试验,杂志文章
doi:
更新日期:1996-05-01 00:00:00
abstract::A Genesis stent was implanted in two children, one with superior vena caval (SVC) stenosis and one with pulmonary artery branch stenosis. Case 1 was a 2-month-old baby with SVC stenosis following intracardiac repair for total anomalous pulmonary venous connection (TAPVC) and case 2 was a 2-year-old child with left low...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:10.1016/j.jjcc.2008.06.002
更新日期:2008-12-01 00:00:00
abstract::Patients with myocardial infarction (MI) and triple vessel coronary disease generally have poor prognoses. However, it is not known whether there are particular angiographic variables associated with the poor prognosis in MI patients with triple vessel disease. The angiographic variables for poor prognosis were invest...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:1995-11-01 00:00:00
abstract::Intraoperative epicardial two-dimensional and pulsed Doppler echocardiography (PDE) were performed for 44 patients undergoing open mitral valve surgery to determine the presence and severity of functional tricuspid regurgitation (TR). The findings of intraoperative epicardial PDE performed before cannulation for extra...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:1990-01-01 00:00:00
abstract::A 44-year-old man was admitted to our hospital because of congestive heart failure. He had various symptoms caused by insulin-dependent diabetes mellitus, sensorineural deafness, Wolff-Parkinson-White syndrome and cardiomyopathy associated with mitochondrial DNA point mutation A3243G. Echocardiography had showed symme...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:2003-01-01 00:00:00
abstract::The usefulness of 80 degrees head-up tilt testing with and without low dose isoproterenol provocation was evaluated for the diagnosis of neurally mediated syncope (NMS) in Japanese. Head-up tilt testing was performed in 114 consecutive patients with clinical diagnoses of NMS (68 men, 46 women, mean age 46 +/- 21 years...
journal_title:Journal of cardiology
pub_type: 临床试验,杂志文章
doi:
更新日期:2000-05-01 00:00:00
abstract::In nine patients with cardiac dysfunction (ejection fraction less than or equal to 50%), we evaluated the effects of dobutamine (5 micrograms/kg/min) on ventriculo-arterial coupling by monitoring direct arterial pressures and simultaneously-recorded M-mode echocardiograms guided with two-dimensional images. Left ventr...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:1988-06-01 00:00:00
abstract::In patients with right ventricular overload, the free wall of the right ventricle is often visualized by 201T1 myocardial scintigraphy. To determine quantitatively the discriminant and characteristics of cor pulmonale, 201T1 myocardial perfusion single photon emission computed tomography (SPECT) was performed in 16 pa...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:1990-01-01 00:00:00
abstract:OBJECTIVES:This study investigated retardation of abnormal uptake of iodine-123-beta-methyl-p-iodophenyl-pentadecanoic acid(BMIPP) scintigraphy in patients with vasospastic angina. METHODS:Twenty-three patients with vasospastic angina showed abnormal uptake of BMIPP before medical treatment and had coronary vasospasm ...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:2001-07-01 00:00:00
abstract:BACKGROUND:Although an increased epicardial adipose tissue (EAT) volume around the left atrium (LA) is related to the atrial fibrillation (AF) burden, the role of EAT inflammation in AF is unclear. We investigated the association between AF and inflammation of the EAT around the LA. METHODS:We retrospectively identifi...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:10.1016/j.jjcc.2015.11.005
更新日期:2016-11-01 00:00:00
abstract:BACKGROUND:Based on the importance of left ventricular (LV) diastolic function in stratification of the cardiac prognosis in patients with systolic heart failure (SHF), we attempted to identify the prognostic impact of Doppler echocardiographic examinations and plasma B-type natriuretic peptide (BNP) concentration. ME...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:10.1016/j.jjcc.2008.07.008
更新日期:2008-12-01 00:00:00
abstract:OBJECTIVES:The relationship between the long-term efficacy of the antiarrhythmic agent cibenzoline in preventing lone paroxysmal atrial fibrillation (PAf) and plasma concentrations of atrial natriuretic peptide (ANP) and catecholamine was investigated during sinus rhythm and PAf. METHODS:Plasma concentrations of ANP, ...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:2002-02-01 00:00:00
abstract:BACKGROUND:Catheter ablation has become a standard treatment strategy for drug-resistant symptomatic non-valvular atrial fibrillation (NVAF). Periprocedural administration of uninterrupted warfarin could reduce the risk of thromboembolic complications. However, only a few retrospective studies have reported on the effi...
journal_title:Journal of cardiology
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.jjcc.2015.10.003
更新日期:2016-09-01 00:00:00
abstract:BACKGROUND:Global coronary flow reserve (g-CFR) provides powerful prognostic information. The relationship between g-CFR and the regional physiological indices of fractional flow reserve (FFR), coronary flow reserve (r-CFR), and the index of microcirculatory resistance remains undetermined. This study aimed to assess t...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:10.1016/j.jjcc.2018.12.005
更新日期:2019-04-01 00:00:00
abstract::A 57-year-old man was admitted under a diagnosis of myocardial infarction. Cardiac catheterization revealed total occlusions of the right coronary artery and the left anterior descending artery, and ventriculography showed aneurysmal change in the anterior and septal segments. Circulatory support was introduced with i...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:2004-05-01 00:00:00
abstract:BACKGROUND:Missense mutations in KCNH2, a gene encoding the Kv11.1 channel, cause long QT syndrome (LQTS) type 2 primarily by disrupting the intracellular transport of Kv11.1 to the plasma membrane. The present study aimed to clarify the functional changes by two novel KCNH2 missense mutations. METHODS:We performed ge...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:10.1016/j.jjcc.2017.10.004
更新日期:2018-04-01 00:00:00
abstract::The value of recanalization therapy in restoring risk area after acute coronary occlusion is well documented. However, some cases show poor recovery of left ventricular function regardless of early reperfusion. This study investigated the use of ST segment re-elevation immediately after recanalization in patients with...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:1995-02-01 00:00:00
abstract::The mortality and morbidity associated with residual intracardiac floating thrombi in patients with acute pulmonary thromboembolism remain uncertain. Thirteen patients (2 men and 11 women, mean age 56 +/- 15 years) with pulmonary thromboembolism underwent echocardiography within 24 hours from onset of symptoms. Four p...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:2000-06-01 00:00:00
abstract:BACKGROUND:Elderly patients undergoing cardiac surgery often show poor nutritional status, muscle wasting, and sarcopenia, which are reported to affect postoperative functional recovery and incidence of complications. Amino acids are essential in maintaining nutritional status, synthesizing muscle protein, and promotin...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:10.1016/j.jjcc.2019.03.011
更新日期:2019-10-01 00:00:00
abstract:BACKGROUND:Malondialdehyde-modified low-density lipoprotein (MDA-LDL) is a predictive marker of cardiovascular events in patients with stable angina pectoris. However, little is known about this marker in patients with acute coronary syndrome (ACS). We investigated the prognostic relevance of MDA-LDL to cardiovascular ...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:10.1016/j.jjcc.2019.02.012
更新日期:2019-09-01 00:00:00
abstract:BACKGROUND:While physical rehabilitation has been shown to be beneficial and safe for patients suffering from heart failure, data on rehabilitation for hypertrophic cardiomyopathy (HCM) patients are limited. METHODS:Forty-five HCM patients participated in an exercise rehabilitation program. Exercise capacity was measu...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:10.1016/j.jjcc.2019.04.013
更新日期:2019-11-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Coronary collateral circulation (CCC) has been demonstrated to be impaired in patients with type 2 diabetes mellitus which is characterized by insulin resistance. In this study, our purpose was to find out a possible relationship between CCC and non-alcoholic fatty liver disease (NAFLD), which is...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:10.1016/j.jjcc.2012.05.003
更新日期:2012-09-01 00:00:00
abstract:BACKGROUND AND PURPOSE:CYP2C19*2 loss-of-function allele in Caucasians may be associated with wide interindividual variability in platelet response to clopidogrel, and the incidence of gene mutation varies with racial differences, especially between Asians and Caucasians. The aim was to examine the impact of CYP2C19 ge...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:10.1016/j.jjcc.2010.10.007
更新日期:2011-03-01 00:00:00
abstract::A 71-year-old woman was admitted to our department because of acute myocarditis. She was ameliorated with conventional heart failure treatment, however she developed left ventricular dilatation and cardiac troponin T (cTnT) was elevated again to >1.0 ng/ml 6 month after the first admission. She was re-admitted because...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:10.1016/j.jjcc.2008.05.002
更新日期:2008-10-01 00:00:00
abstract:BACKGROUND:Early graft failure can affect the short- and long-term outcomes of patients undergoing coronary bypass grafting surgery (CABG). The aim of our study was to explore the predictive value of transit-time flow measurement (TTFM) parameters for early graft failure (before discharge) after CABG in different coron...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:10.1016/j.jjcc.2020.09.003
更新日期:2021-02-01 00:00:00
abstract:BACKGROUND:Elevated levels of total plasma adiponectin (APN) and high molecular weight (HMW)-APN have been observed in chronic heart failure (HF) and are associated with poor prognosis, however, the response of APN levels in acute HF is not known. The purpose of this study was to clarify the dynamic changes of the plas...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:10.1016/j.jjcc.2011.06.010
更新日期:2011-09-01 00:00:00
abstract::The influence of morphological and dynamic changes in the interventricular septum (IVS) on right ventricular (RV) and left ventricular (LV) fillings in cases of LV or RV pressure overload was evaluated. Using pulsed Doppler echocardiography, LV and RV inflow signals were recorded in 20 healthy subjects, in 36 cases of...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:1987-12-01 00:00:00
abstract::The effects of elective percutaneous transluminal coronary angioplasty (PTCA) performed one month after coronary reperfusion therapy in patients with acute myocardial infarction (AMI) were observed using exercise Tl-201 myocardial scintigraphy performed before and after PTCA. Myocardial perfusion in Tl-201 scintigraph...
journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:1990-01-01 00:00:00
abstract:BACKGROUND:Inflammation and oxidative stress play a role in the pathophysiology of chronic heart failure (CHF). Our previous clinical trial, the Bisoprolol Improvement Group for Chronic Heart Failure Treatment Study in Dokkyo Medical University (BRIGHT-D), reported that bisoprolol is superior to carvedilol for myocardi...
journal_title:Journal of cardiology
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.jjcc.2019.07.011
更新日期:2020-02-01 00:00:00