Yoshihara Shu, Matsunaga Masaki, Yaegashi Taku, Suzuki Shioto, Naito Masaaki, Takehara Yasuo
Department of Diagnostic Radiology, Iwata City Hospital, Japan.
Intern Med. 2016;55(9):1103-8. doi: 10.2169/internalmedicine.55.5976. Epub 2016 May 1.
Left ventricular (LV) involvement in the advanced stage of arrhythmogenic right ventricular cardiomyopathy (ARVC) is a well recognized phenomenon. T wave inversion in the lateral leads has been reported to be an electrocardiographic marker of LV involvement. Variants of ARVC that preferentially affect the left ventricle (left-dominant subtype of arrhythmogenic cardiomyopathy) have recently been recognized. We herein report a case in which an initial electrocardiogram that was similar to the left-dominant subtype of arrhythmogenic cardiomyopathy progressed to definitive ARVC over a period of 7 years. This case supports the hypothesis that LV involvement in ARVC may precede the evident onset of significant RV dysfunction.
左心室（LV）受累于致心律失常性右心室心肌病（ARVC）晚期是一种公认的现象。据报道，外侧导联T波倒置是左心室受累的心电图标志。最近已经认识到优先影响左心室的ARVC变异型（致心律失常性心肌病的左优势亚型）。我们在此报告一例，其初始心电图类似于致心律失常性心肌病的左优势亚型，在7年的时间里进展为明确的ARVC。该病例支持这样的假说，即ARVC中的左心室受累可能先于明显的右心室功能障碍的明显发作。
