Kessler K M
J Am Coll Cardiol. 1985 May;5(5):1257-9. doi: 10.1016/s0735-1097(85)80035-8.
An echogram showing mitral valve alternans was recorded in a patient with advanced cardiomyopathy and pulsus alternans induced by premature ventricular depolarizations. Decreased left ventricular emptying by the weak beat was followed by blunting of the subsequent mitral valve E point, a finding compatible with a significant elevation of left ventricular pressure in early diastole. Both alternating systolic (contractile state) and diastolic (pressure and dimension) variables seemed to participate in the alternans phenomenon in this patient.
在一名患有晚期心肌病且因室性早搏诱发脉搏交替的患者中记录到了显示二尖瓣交替现象的超声心动图。弱搏动导致左心室排空减少，随后二尖瓣E点变钝，这一发现与舒张早期左心室压力显著升高相符。在该患者中，收缩期（收缩状态）和舒张期（压力和尺寸）的交替变量似乎都参与了交替现象。
