Winer H E, Kronzon I
Am J Cardiol. 1979 Aug;44(2):378-80. doi: 10.1016/0002-9149(79)90330-8.
Five patients with atrial septal defect and proved cardiac tamponade had neither paradoxical pulse nor the inspiratory reduction of left ventricular internal dimension associated with this sign. It is assumed that equilibration of flow across the atrial septal defect prevented paradoxical pulse. Patients with a large atrial septal defect and tamponade do not manifest a paradoxical pulse.
五例患有房间隔缺损且已证实存在心脏压塞的患者既没有奇脉，也没有与该体征相关的左心室内径吸气时缩小的情况。据推测，通过房间隔缺损的血流平衡阻止了奇脉的出现。患有大的房间隔缺损和心脏压塞的患者不会出现奇脉。
