本文测定了23例重症肌无力患者的心脏收缩间期,发现11例的心脏射血前间期与左室射血时间之比大于0.41,示左室功能肯定异常,肌注新斯的明后有8例的心功转为正常或趋于正常.因此,从研究结果发现,重症肌无力患者的心肌损害多为肌无力性质,且本病的心肌损害比临床上估计的更为多见. This article measured 23 patients with myasthenia gravis systolic interval and found that 11 cases of pre-ejection time and left ventricular ejection time of more than 0.41, the function of the left ventricle is certainly abnormal, intramuscular injection of neostigmine 8 cases of normal or normal heart function.Therefore, from the results of the study found that patients with myasthenia gravis more muscle weakness, and the nature of the disease and myocardial damage more than clinically estimated.