Classification and assessment of computerized diagnostic criteria for Brugada-type electrocardiograms

Nishizaki, Mitsuhiro; Sugi, Kaoru; Izumida, Naomi; Kamakura, Shiro; Aihara, Naohiko; Aonuma, Kazutaka; Atarashi, Hirotsugu; Takagi, Masahiko; Nakazawa, Kiyoshi; Yokoyama, Yoshihiko; Kaneko, Mutsuo; Suto, Jiro; Saikawa, Tetsunori; Okamoto, Noboru; Ogawa, Satoshi; Hiraoka, Masayasu

doi:10.1016/j.hrthm.2010.06.035

Cited by 23 publications

(18 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Minimum ST ascent ≥ 0.5 mm d. At 40 ms of high take-off, the decrease in amplitude of ST is ≤4mm. 28 In RBBB and athletes, it is much higher. e. The characteristics of triangle formed by r' allow to define different criteria useful for diagnosis (see above and text).…”

Section: Morphology In V1-v2mentioning

confidence: 99%

“…More recently, the criteria proposed by previous consensus documents have also been used in other articles related to this topic, 26,27 although, in a Japanese study, it was suggested to combine types 2 and 3 into only 1 type. 28 We will now describe the most useful current ECG criteria to make this diagnosis and also some other ECG abnormalities that may be found.…”

Section: Ecg Abnormalities Of the Brpmentioning

confidence: 99%

“…3A): This pattern, known as a coved pattern, presents as ST-segment elevation followed by a symmetric negative T wave in the right precordial leads. 1,24,25,28 Usually, the pattern is seen only in V1-V2. But in some cases, it is recorded only in V1 or V2; and, in others, it is observed from V1 to V3.…”

Section: Morphology In V1-v2mentioning

confidence: 99%

See 2 more Smart Citations

Current electrocardiographic criteria for diagnosis of Brugada pattern: a consensus report

Luna¹,

Brugada²,

Baranchuk³

et al. 2012

Journal of Electrocardiology

340

237

View full text Add to dashboard Cite

Section: Morphology In V1-v2mentioning

confidence: 99%

Section: Ecg Abnormalities Of the Brpmentioning

confidence: 99%

See 1 more Smart Citation

Current electrocardiographic criteria for diagnosis of Brugada pattern: a consensus report

Luna¹,

Brugada²,

Baranchuk³

et al. 2012

Journal of Electrocardiology

340

237

View full text Add to dashboard Cite

Section: Bsmentioning

confidence: 99%

“…29,30 For example, the Japanese IVF study group reclassified BS ECGs into 3 subtypes: type I, type II/III, and type S. Type S has been defined as a coved-type ST segment elevation with J wave amplitude 0.1-0.2 mV. 30 The clinical features and long-term outcomes of these type II/III or type S subgroup patients have not yet been described.Another pitfall in the ECG diagnosis of BS is the so-called "masked" BS. In patients with bundle branch block (BBB), the BS-type ST changes may be buried within the wide QRS complex, being unmasked only when the BBB is relieved.…”

mentioning

confidence: 99%

Idiopathic Ventricular Fibrillation, Early Repolarization and Other J Wave-Related Ventricular Fibrillation Syndromes

Nam

2012

Circ J

View full text Add to dashboard Cite

Current clinical and experimental data demonstrate that the electrocardiographic J wave plays a critical role in the pathogenesis of ventricular fibrillation (VF) in patients with Brugada syndrome (BS) and early repolarization (ER) syndrome (ERS). This has generated renewed interest in the presence of J waves and ERS in the general population, yet the identification of high-risk ECG markers and the risk stratification of subjects with ERS remain to be established. More recently, this concept has been expanded to VF mechanisms in patients with structural heart diseases. Some of the fatal arrhythmias in the setting of acute myocardial ischemia or infarction may share a similar, J wave-related electrophysiologic process. In canine arterially perfused wedge preparations, the occurrence of J waverelated arrhythmias is mediated by phase 2 reentry. The stability of the action potential (AP) dome in the ventricular epicardium is dependent on the prominence of the AP phase 1 notch. The ability to maintain the AP dome depends on a delicate balance between inward and outward ionic currents during depolarization and the early phase of repolarization. Outward shifts of the balance and inability to maintain the AP dome result in marked dispersion of repolarization and vulnerability to VF. This review describes the electrocardiographic and clinical features of the J waves in idiopathic VF and other structural heart diseases. (Circ J 2012; 76: 2723 - 2724NAM GB cardioverter defibrillator (ICD) implantation at the Asan Medical Center, Korea. Structural diseases were present in 209 (68%) of 309 ICD recipients. Coronary artery disease or myocardial infarction, and hypertrophic cardiomyopathy were underlying cardiac diseases in approximately 40% of all ICD recipients. Other structural cardiac abnormalities (dilated cardiomyopathy, arrhythmogenic right ventricular cardiomyopathy, sarcoidosis, valvular or congenital heart diseases) were present in 28% of these cases. Among the 100 patients without structural heart diseases, long QT syndrome (LQTS), BS and ERS were identified in 10 (3.2%), 29 (9.4%) and 16 (5.2%) of the patients, respectively. After extensive search for an underlying etiology, the diagnosis remained idiopathic in 45 patients (14.5%). Interestingly, after careful review of all the ECGs taken during peri-event periods, provocation, and at the outpatient clinic, a significant proportion (19/45, 42.2%) of the patients whose diagnosis was presumed to be idiopathic showed a J wave fluctuation, which did not satisfy the diagnostic criteria of either BS or ERS. These patients are described later in the section about J wave-related VF syndrome in the absence of structural heart disease (IVF-J). In 26 patients, abnormal findings were not identified in any of the ECGs, and these cases were termed true "idiopathic VF (IVF)". BSBS is the prototype of cardiac ion-channel diseases, and has opened a new era in translational electrophysiology. It is characterized by unique ECG changes of coved-type J/ST/T waves, and a high risk of ...

show abstract

Inherited Heart Diseases

Luna

2012

Clinical Electrocardiography

View full text Add to dashboard Cite

Classification and assessment of computerized diagnostic criteria for Brugada-type electrocardiograms

Cited by 23 publications

References 16 publications

Current electrocardiographic criteria for diagnosis of Brugada pattern: a consensus report

Current electrocardiographic criteria for diagnosis of Brugada pattern: a consensus report

Idiopathic Ventricular Fibrillation, Early Repolarization and Other J Wave-Related Ventricular Fibrillation Syndromes

Inherited Heart Diseases

Contact Info

Product

Resources

About