recurrent sudden attacks of unconsciousness caused by impaired conduction of the impulse that regulates the heartbeat 同义词：Adams-Stokes syndrome, Stokes-Adams syndrome, atrioventricular block,
例句与用法
1.
Regular irregularities occur with constant periodicity and are usually associated with partial heart block . 规律的不整脉随固定周期出现，而且常伴有心脏部分传导阻滞。
2.
Heart block is not transient , and the prognosis for this condition is much more guarded 心脏传导阻滞并不是暂时的，对于这种状况的诊断更须慎重。
3.
This manifestation is thus primarily transient and treatable , although the risk of " cross - over " to congenital heart block in subsequent pregnancies is significant 虽然这些表现最初是暂时的，且可治愈，但是在后来的妊娠中发展为先天性心脏传导阻滞的几率很高。
4.
Precautions severe shock , av heart block , or central nervous system depression or excitation possible with overdosing ; may increase risk of aspiration ( impairs swallowing ) ; caution in shock or heart block 注意事项：由于过量可引起严重休克，房室传导阻滞，中枢神经系统抑制或兴奋。最新报道可引起上消化道大量出血。
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