Guenthard J, Wyler F, Fowler B, Baumgartner R
Department of Cardiology, University Children's Hospital of Basel.
Arch Dis Child. 1995 Mar;72(3):223-6. doi: 10.1136/adc.72.3.223.
Disorders of mitochondrial oxidative phosphorylation may disturb cardiac energy metabolism and cause cardiomyopathy. Twenty one cases from the literature and one further patient with cardiomyopathy due to biochemically defined respiratory chain defects were reviewed for clinical course, morphology, and pathophysiological mechanisms of the cardiomyopathy. All cases showed concentric hypertrophy of the myocardium without an outflow tract obstruction. In most patients the cardiomyopathy was diagnosed early in infancy and showed rapid deterioration with death before the age of 2 years. Hypertrophy of the myocardium appears to result from swelling of the cardiomyocytes caused by accumulation of mitochondria and by morphologically abnormal megamitochondria.
线粒体氧化磷酸化紊乱可能会干扰心脏能量代谢并导致心肌病。我们回顾了文献中的21例病例以及另外1例因生化定义的呼吸链缺陷导致心肌病的患者,以研究心肌病的临床病程、形态学和病理生理机制。所有病例均表现为心肌向心性肥厚,无流出道梗阻。大多数患者在婴儿早期被诊断出患有心肌病,且病情迅速恶化,在2岁前死亡。心肌肥厚似乎是由线粒体堆积和形态异常的巨型线粒体导致的心肌细胞肿胀引起的。