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Jonathan Monin, Sébastien Bisconte, Aurore Nicaise, Anne-Pia Hornez, Olivier Manen, Eric Perrier
BACKGROUND: Recommendations for the interpretation of electrocardiogram have been published in 2009. The aim of this study was to define the prevalence of intraventricular conduction disturbances (ICoDs) in a large population, using these recommendations. METHODS: From 01/31/1996 to 09/22/2010, an electrocardiogram was performed at each visit for all aircrew members examined for fitness assessment in an aeromedical center. The prevalence of left bundle branch block (LBBB), right bundle branch block (RBBB), incomplete LBBB, incomplete RBBB, nonspecific intraventricular disturbance (NIVCD), left anterior fascicular block (LAFB), and left posterior fascicular block (LPFB) was measured and compared by age and gender...
September 2016: Annals of Noninvasive Electrocardiology
Yong Zhou, Yongwen Qin, Xianxian Zhao, Xilong Lang, Ni Zhu, Yuan Bai, Xing Zheng, Zhifu Guo, Hong Wu
BACKGROUND: Complete atrioventricular block (cAVB) is considered the most serious adverse event after transcatheter closure of ventricular septal defect (VSD). OBJECTIVES: To evaluate the incidence of postprocedure cAVB and its relationship with different waist lengths of transcatheter occluders. METHODS: This is a retrospective study of patients with VSD who had been treated with transcatheter closure at the Shanghai Changhai Hospital from December 2001 to December 2010...
November 2015: Journal of Invasive Cardiology
Thomas Pospiech, Jérémie Jaussaud, Frédéric Sacher, Darren A Hooks, Michel Haïssaguerre, Hervé Douard
BACKGROUND: A new ECG criterion has been studied in Brugada syndrome (BrS) at rest to differentiate type 2 and incomplete right bundle branch block (IRBBB). METHODS: We assessed this criterion during exercise comparing BrS (46 patients) and IRBBB (17 patients). A beta angle was measured from lead V1 between the upslope of S-wave and the downslope of the r'-wave. RESULTS: Beta angle was significantly larger in BrS at rest (58±24° vs 25±15°, p<0...
September 2015: Journal of Electrocardiology
Antonio Frontera, Alexander Carpenter, Nauman Ahmed, Matteo Fasiolo, Martin Nelson, Ihab Diab, Tim Cripps, Glyn Thomas, Edward Duncan
BACKGROUND: There is growing interest in detecting paroxysmal atrial fibrillation (PAF) to identify patients at high risk of thromboembolic stroke. The implantable loop recorder (ILR) is emerging as a powerful new tool in the diagnosis of PAF. Widespread implantation has significant cost implications and their use must be targeted at those patients at most risk. METHODS: We retrospectively studied a population of 200 adult patients who underwent ILR implantation for the investigation of syncope or palpitations...
October 2015: Pacing and Clinical Electrophysiology: PACE
Petri Haataja, Ismo Anttila, Kjell Nikus, Markku Eskola, Heini Huhtala, Tuomo Nieminen, Antti Jula, Veikko Salomaa, Antti Reunanen, Markku S Nieminen, Terho Lehtimäki, Samuel Sclarovsky, Mika Kähönen
AIMS: We examined the prognostic impact of eight different intraventricular conduction delays (IVCD) in the standard electrocardiogram (ECG) in a community cohort. METHODS AND RESULTS: Data were collected from 6299 Finnish individuals. During a mean 8.2 years (interquartile range 8.1 to 8.3) of follow-up 640 subjects died (10.2%); 277 (4.4%) were cardiovascular deaths. For both sexes, all-cause and cardiovascular mortality was higher in subjects with IVCD than in those without...
February 2015: Annals of Medicine
Shijun Hu, Yifeng Yang, Yun Zhu, Qin Wu, Rwakaryebe Muhoozi, Shijie Wei, Xiaojie Huang, Tianli Zhao
OBJECTIVES: To report our experience with percardiac interventions for multiple congenital heart diseases in children. METHODS: From April 2010 to December 2013, a total of 64 patients (33 males and 31 females), aged 4.38 ± 2.97 years, with multiple congenital heart diseases underwent attempted percardiac interventional procedures. The cohort included 34 ventricular septal defects (VSDs) with atrial septal defect (ASD), 9 VSDs with patent foramen ovale (PFO), 17 VSDs with patent ductus arteriosus (PDA), 2 VSDs with pulmonary stenosis (PS) and 2 VSDs with ASD and PDA...
November 2014: Interactive Cardiovascular and Thoracic Surgery
Minglei Gao, Zhenze Cui
OBJECTIVE: To observe the effect of bronchoalveolar lavage on the heart rhythm and conduction of children with severe pneumonia through monitoring the electrocardiogram change of different step of the bronchoalveolar lavage, for proving the safety of the operation of bronchoalveolar lavage from the perspective of cardiac electrophysiology. METHOD: From July 2011 to March 2012, 30 patients who were hospitalized in pneumology department of Dalian Children's Hospital and met the inclusion criteria and therapeutic indications of bronchoalveolar lavage were chosen...
April 2014: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
Carlo De Asmundis, Giulio Conte, Moises Levinstein, Gian-Battista Chierchia, Juan Sieira, Giacomo Di Giovanni, Giannis Baltogiannis, Michael Hoe Kwung Park, Andrea Sarkozy, Pedro Brugada
INTRODUCTION: Early repolarization (ERP) is a common electrocardiographic finding. Its potential to cause cardiac arrhythmias has been hypothesized from experimental studies, but it is not known whether there is a clinical association with sudden cardiac arrest. METHODS: 122 subjects (100% males; mean age: 13.5 +/- 2.7 years) were included from a local youth soccer team in Belgium. All subjects underwent physical examination and a 12-lead ECG was taken. The main objective of the study was to evaluate early repolarization patterns and to determine its prevalence...
February 2014: Acta Cardiologica
Barbara E Bussink, Anders G Holst, Lasse Jespersen, Jaap W Deckers, Gorm B Jensen, Eva Prescott
AIMS: To determine the prevalence, predictors of newly acquired, and the prognostic value of right bundle branch block (RBBB) and incomplete RBBB (IRBBB) on a resting 12-lead electrocardiogram in men and women from the general population. METHODS AND RESULTS: We followed 18 441 participants included in the Copenhagen City Heart Study examined in 1976-2003 free from previous myocardial infarction (MI), chronic heart failure, and left bundle branch block through registry linkage until 2009 for all-cause mortality and cardiovascular outcomes...
January 2013: European Heart Journal
Andrés R Peréz-Riera, Celso Ferreira Filho, Luiz Carlos de Abreu, Celso Ferreira, Frank G Yanowitz, Francisco Femenia, Pedro Brugada, Adrian Baranchuk
AIMS: Previous studies have reported right bundle branch block in Brugada syndrome. Subsequent analysis of electrocardiograms (ECGs) found one-third of cases classified as right bundle branch block did not meet criteria of a wide final S wave in the left leads. We aimed to study the role of the vectorcardiogram to characterize Brugada type 1 ECG pattern. METHODS AND RESULTS: Compare Frank-method vectorcardiogram in 11 patients with Brugada type 1 ECG pattern (BrS group) with vectorcardiogram of 20 healthy individuals with ECGs depicting incomplete right bundle branch block (IRBBB group) and 12 patients with complete right bundle branch block (CRBBB group)...
June 2012: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
Kimie Ohkubo, Ichiro Watanabe, Yasuo Okumura, Sonoko Ashino, Masayoshi Kofune, Koichi Nagashima, Toshiko Nakai, Satoshi Kunimoto, Yuji Kasamaki, Atsushi Hirayama
The type 1 (coved) ECG pattern is diagnostic for Brugada syndrome; types 2 and 3 require antiarrhythmic drug challenge to confirm its presence. We evaluated a 12-lead ECG-based criterion to differentiate between ordinary incomplete right bundle branch block (iRBBB) and true type 2 and 3 patterns that evolve toward type 1 during drug challenge. The subjects were 22 patients (21 men, 1 woman; mean age, 46.8 ± 13.2 years) referred for drug challenge (1 mg/kg pilsicainide, iv). In magnified ECG lead V1 and/or V2 with an iRBBB pattern, the baseline angle defined as the cross section of the upslope of the r' wave with the downslope of the r' wave was measured and compared between patients responding negatively versus positively to drug challenge, and was found to be significantly smaller in patients responding negatively (20...
2011: International Heart Journal
Jonathan H Kim, Peter A Noseworthy, David McCarty, Kibar Yared, Rory Weiner, Francis Wang, Malissa J Wood, Adolph M Hutter, Michael H Picard, Aaron L Baggish
We sought to determine the clinical and physiologic significance of electrocardiographic complete right bundle branch block (CRBBB) and incomplete right bundle branch block (IRBBB) in trained athletes. The 12-lead electrocardiographic and echocardiographic data from 510 competitive athletes were analyzed. Compared to the 51 age-, sport type-, and gender-matched athletes with normal 12-lead electrocardiographic QRS complex duration, the 44 athletes with IRBBB (9%) and 13 with CRBBB (3%) had larger right ventricular (RV) dimensions, as measured by the basal RV end-diastolic diameter (CRBBB 43 ± 3 mm, IRBBB 38 ± 6 mm, normal QRS complex 35 ± 4 mm, p <0...
April 1, 2011: American Journal of Cardiology
Jonas Bille Nielsen, Morten Salling Olesen, Mogens Tangø, Stig Haunsø, Anders Gaarsdal Holst, Jesper Hastrup Svendsen
AIMS: P-wave morphology and PR interval have both been previously associated with atrial fibrillation (AF). We hypothesized that incomplete right bundle branch block (IRBBB) would be associated with early-onset lone AF. METHODS AND RESULTS: We conducted a case-control study comparing electrocardiographic (ECG) markers from patients with early-onset lone AF and from a healthy control population. We included 187 patients with early-onset lone AF and 383 healthy controls...
February 2011: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
Zhi-Yuan Song, Yong-Hua Li, Hong Chai, Hua-Kang Li, Qing Yao, Li Zhong, Tao Jing, Bo-Li Ran, Shi-Fei Tong, Jian-Ping Liu
OBJECTIVE: To investigate the prognostic impact of heart block during the transcatheter closure of ventricular septal defect (VSD). METHODS: Forty three patients developed complete left or right bundle branch block (CLBBB, CRBBB), incomplete left or right bundle branch block (ILBBB, IRBBB), and atrioventricular block (AVB) during and within 1 week post procedure were followuped at 1, 6, 12, 24, 36, 48 and 60 months post procedure. Electrocardiogram, dynamic electrocardiogram and transthoracic echocardiography were made...
November 2009: Zhonghua Xin Xue Guan Bing za Zhi
Tao Zhou, Xiang-Qian Shen, Sheng-Hua Zhou, Zhen-Fei Fang, Xin-Qun Hu, Yan-Shu Zhao, Shu-Shan Qi, Zheng Zhou, Jiang Li, Xiao-Lin Lv
BACKGROUND: Transcatheter closure is an effective approach for perimembranous ventricular septal defects (PMVSD). However, atrioventricular blocks (AVB) emerged possibly due to the close proximity of the PMVSD to the conduction system, but concern for the complication was not adequately emphasized. In this study, we report the incidence of AVBs, in and after transcatheter closure of a PMVSD, and the outcome of the complication in our center. METHODS: One hundred and sixty-eight PMVSD patients were accepted for transcatheter closure with Amplazter PMVSD occluder (AGA Medical, Plymouth, Minn...
August 2008: Clinical Cardiology
Ruiming Shi, Yanmin Zhang, Chun Yang, Chen Huang, Xihui Zhou, Hua Qiang, Andrew A Grace, Christopher L-H Huang, Aiqun Ma
AIM: We report diverse phenotypic consequences of the delQKP-1507-1509 cardiac sodium channel mutation in three generations of a Chinese family. METHODS AND RESULTS: Clinical and electrocardiographic (ECG), echocardiographic examination was followed by direct sequencing of SCN5A, KCNQ1, HERG, and LAMIN A/C to screen genomic DNA from blood samples. Of two mutation carriers, the proband was born with conduction disorders including second-degree atrioventricular (AV) block with prolonged QTc interval, additionally showing left anterior fascicular block (LAFB), incomplete right bundle-branch block (IRBBB), and intermittent third-degree AV block at 2 years, and clinical presentations of multiple syncope despite normal electroencephalograms at 8 years...
November 2008: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
Xian-Yang Zhu, Yu-Hao Liu, Xiu-Min Han, Chuan-Ju Hou, Xiao-Tang Sheng, Duan-Zhen Zhang, Chun-Sheng Cui, Dong-An Deng
OBJECTIVE: To evaluate the short- and mid-term outcomes of arrhythmia in patients undergoing transcatheter and surgical closure of membraneous ventricular septal defect (VSD). METHODS: 358 VSD patients, 161 male and 197 female, aged (11 +/- 8), underwent transcatheter closure and 50 sex, age, body weight, size of membranous VSD, and percentage of complicated membranous aneurysm-matched VSD patients underwent surgical closure. Electrocardiography was conducted 1, 3, 6, and 12 months after VSD closure...
November 13, 2007: Zhonghua Yi Xue za Zhi [Chinese medical journal]
Shuenn-Nan Chiu, Jou-Kou Wang, Mei-Hwan Wu, Chi-Wei Chang, Chun-An Chen, Ming-Tai Lin, En-Ting Wu, Yu Chuan Hua, Hung-Chi Lue
OBJECTIVE: To delineate the prevalence and clinical implications of cardiac conduction disturbance (CCD) in school-age children. STUDY DESIGN: Between 1999 and 2001, a citywide survey of 432,166 elementary and high school students had been performed in Taipei by questionnaire, electrocardiography, phonocardiography, and physical examination. Patients with any abnormalities on this survey were referred for final diagnosis. RESULTS: After excluding those with congenital heart disease (CHD), the prevalence of CCD was 0...
January 2008: Journal of Pediatrics
John E Madias
A 36-year-old male patient, who was admitted with atypical chest pain and had normal physical examination and laboratory findings, including on an echocardiogram and a maximal exercise treadmill/thallium test, is described. His electrocardiograms (ECGs) revealed ST-segment elevation in leads V(1) through V(1), suggestive of early repolarization variant (ERPV); in addition, there was evidence of accelerated atrioventricular conduction (short PR interval) and incomplete right bundle branch block (IRBBB). It is postulated that these 2 features represent ECG "correlates" of ERPV, which is characterized by accelerated repolarization and depolarization, and are due to a rapid conduction through all or some component(s) of the atria/AV-node/Hiss bundle/left bundle branch/left ventricle "chain," leading to a short PR interval and early and accelerated activation of the left ventricle, with resultant IRBBB...
January 2008: Journal of Electrocardiology
Tadayoshi Hata, Yoshio Watanabe, Yoko Hata, Hatsue Fukami, Makoto Kuroda
This article describes a patient who died suddenly during Holter ECG monitoring. A ventricular premature systole with an extremely short coupling interval of 240 ms was immediately followed by torsades de pointes, soon degenerating into ventricular fibrillation. Retrospective survey of the patient's medical records revealed an incomplete right bundle branch block (iRBBB) configuration with fluctuating saddle back-type ST elevation in leads V1 and V2, these suggesting Brugada syndrome. Autopsy showed complete thrombotic occlusion of the left main coronary artery...
November 2003: Pacing and Clinical Electrophysiology: PACE
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