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Hiroshi Furushima Masaomi Chinushi Kazuki Okamura Kenichi Iijima Satoru Komura Yasutaka Tanabe Shinsuke Okada Daisuke Izumi Yoshifusa Aizawa 《Europace : European pacing, arrhythmias, and cardiac electrophysiology》2007,9(10):951-956
BACKGROUND: In both Brugada syndrome (BS) and arrhythmogenic right ventricular cardiomyopathy (ARVC), electrical abnormalities in the right ventricular outflow tract (RVOT) are important for arrhythmogenesis. OBJECTIVES: The aim of this study was to compare conduction delay in the right ventricular in BS with that in ARVC using the signal-averaged electrocardiogram. METHODS: Twenty patients with BS (18 men and 2 women; 55 +/- 12 years old; 9 symptomatic and 11 asymptomatic) and eight patients with ARVC (six men and two women; 53 +/- 16 years old) were included. We assessed the presence of late potentials (LPs) and the filtered QRS duration (fQRSd) in V(2) and V(5) using a high-pass filter of 40 Hz (fQRSd:40) and 100 Hz (fQRSd:100). RESULTS: In ARVC, there was no significant difference in fQRSd:40 between V2 and V5 (158 +/- 19 vs. 145 +/- 17 ms, respectively): however, in BS, fQRSd:40 in V2 was significantly longer than fQRSd:40 in V5 (147 +/- 15 vs. 125 +/- 10 ms, P < 0.001). In ARVC, there was no significant difference between fQRSd:40 and fQRSd:100 in V(2) and V(5) (158 +/- 19 vs. 142 +/- 23 ms and 145 +/- 17 vs. 132 +/- 9 ms, respectively). In contrast, in BS, fQRSd:100 was significantly shorter than fQRSd:40 in V2 (110 +/- 8 ms vs. 147 +/- 15, P < 0.001). The relative decrease in fQRSd:100 compared with fQRSd:40 in V2 was significantly greater in BS than in ARVC. CONCLUSION: The dominant prolongation of the fQRSd in the right precordial lead in BS was different from the characteristics of ARVC, which may be caused by the conduction delay due to fibro-fatty replacement in RV. 相似文献
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JACKSON J. LIANG D.O. KIM GOODSELL MARTHA GROGAN M.D. MICHAEL J. ACKERMAN M.D. Ph.D. 《Journal of cardiovascular electrophysiology》2016,27(7):868-871
Arrhythmogenic right ventricular cardiomyopathy (ARVC) is an uncommon cardiomyopathy most classically associated with mutations in genes encoding desmosomal proteins. Recent literature has identified mutations in several non‐desmosomal proteins including lamins that may result in the ARVC phenotype. We describe a patient who discovered her own pathogenic LMNA mutation that offered a unifying diagnosis explaining her ARVC and Charcot‐Marie‐Tooth phenotypes as well as musculoskeletal abnormalities. Suspicion for LMNA‐mediated cardiomyopathy should arise in patients with extracardiac manifestations of laminopathies and testing for specific gene mutations may be helpful in establishing an unifying diagnosis. 相似文献
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Whole exome sequencing with genomic triangulation implicates CDH2‐encoded N‐cadherin as a novel pathogenic substrate for arrhythmogenic cardiomyopathy
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致心律失常性右室心肌病(ARVC)是遗传性心肌病的一种,以右心室心肌细胞被纤维、脂肪组织代替为主要病理特征.临床主要表现为反复发生心律失常、心衰和猝死,在年轻人及运动员猝死中具有重要地位.因此,有必要进一步加深对该疾病的病理、生理和临床特征的认识和进一步研究.该文就ARVC的临床特点、心电图表现、超声心动图特点和核磁共振成像特点作一综述. 相似文献
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黄军章 《中国医学文摘:老年医学》2012,(7):672-675
致心律失常性右室心肌病(ARVC)是遗传性心肌病的一种,以右心室心肌细胞被纤维、脂肪组织代替为主要病理特征.临床主要表现为反复发生心律失常、心衰和猝死,在年轻人及运动员猝死中具有重要地位.因此,有必要进一步加深对该疾病的病理、生理和临床特征的认识和进一步研究.该文就ARVC的临床特点、心电图表现、超声心动图特点和核磁共振成像特点作一综述. 相似文献